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engine/engine/server/pr_lua.c

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#include "quakedef.h"
#ifdef VM_LUA
#include "pr_common.h"
#include "hash.h"
#define LUA_MALLOC_TAG 0x55780128
#define luagloballist \
globalentity (true, self) \
globalentity (true, other) \
globalentity (true, world) \
globalfloat (true, time) \
globalfloat (true, frametime) \
globalentity (false, newmis) \
globalfloat (false, force_retouch) \
globalstring (true, mapname) \
globalfloat (false, deathmatch) \
globalfloat (false, coop) \
globalfloat (false, teamplay) \
globalfloat (true, serverflags) \
globalfloat (false, dimension_send) \
globalfloat (false, physics_mode) \
globalfloat (true, total_secrets) \
globalfloat (true, total_monsters) \
globalfloat (true, found_secrets) \
globalfloat (true, killed_monsters) \
globalvec (true, v_forward) \
globalvec (true, v_up) \
globalvec (true, v_right) \
globalfloat (true, trace_allsolid) \
globalfloat (true, trace_startsolid) \
globalfloat (true, trace_fraction) \
globalvec (true, trace_endpos) \
globalvec (true, trace_plane_normal) \
globalfloat (true, trace_plane_dist) \
globalentity (true, trace_ent) \
globalfloat (true, trace_inopen) \
globalfloat (true, trace_inwater) \
globalfloat (false, trace_endcontentsf) \
globalint (false, trace_endcontentsi) \
globalfloat (false, trace_surfaceflagsf) \
globalint (false, trace_surfaceflagsi) \
globalfloat (false, cycle_wrapped) \
globalentity (false, msg_entity) \
globalfunc (false, main) \
globalfunc (true, StartFrame) \
globalfunc (true, PlayerPreThink) \
globalfunc (true, PlayerPostThink) \
globalfunc (true, ClientKill) \
globalfunc (true, ClientConnect) \
globalfunc (true, PutClientInServer) \
globalfunc (true, ClientDisconnect) \
globalfunc (false, SetNewParms) \
globalfunc (false, SetChangeParms) \
globalfloat (false, dimension_default) \
globalvec (false, global_gravitydir)
//any globals or functions that the server might want access to need to be known also.
#define luaextragloballist \
globalstring (true, startspot) \
globalfunc (true, ClientReEnter)
typedef struct
{
#define globalentity(required, name) int name;
#define globalint(required, name) int name;
#define globalfloat(required, name) float name;
#define globalstring(required, name) string_t name;
#define globalvec(required, name) vec3_t name;
#define globalfunc(required, name) int name;
luagloballist
luaextragloballist
#undef globalentity
#undef globalint
#undef globalfloat
#undef globalstring
#undef globalvec
#undef globalfunc
float parm[NUM_SPAWN_PARMS];
} luaglobalvars_t;
typedef struct
{
int type;
qintptr_t offset;
char *name;
bucket_t buck;
} luafld_t;
//#define LIBLUA_STATIC
#ifdef LIBLUA_STATIC
#ifdef _MSC_VER
#pragma comment(lib, "liblua.lib")
#endif
#include <lua.h>
//#include <lualib.h>
#include <lauxlib.h>
#else
typedef struct lua_State lua_State;
typedef void *(QDECL *lua_Alloc) (void *ud, void *ptr, size_t osize, size_t nsize);
typedef const char *(QDECL *lua_Reader)(lua_State *L, void *data, size_t *size);
typedef int (QDECL *lua_CFunction) (lua_State *L);
typedef double lua_Number;
typedef long long lua_Integer;
#define lua_pcall(L,n,r,f) lua_pcallk(L, (n), (r), (f), 0, NULL)
#define lua_call(L,n,r) lua_callk(L, (n), (r), 0, NULL)
#define lua_pop(L,n) lua_settop(L, -(n)-1)
#define lua_pushstring(L,s) lua_pushfstring(L,"%s",s)
//#define lua_remove(L,idx) (lua_rotate(L, (idx), -1), lua_pop(L, 1))
#define lua_replace(L,idx) (lua_copy(L, -1, (idx)), lua_pop(L, 1))
#define lua_pushglobaltable(L) (lua_rawgeti(L, LUA_REGISTRYINDEX, LUA_RIDX_GLOBALS))
#define luaL_getmetatable(L,n) (lua_getfield(L, LUA_REGISTRYINDEX, (n)))
#define LUA_TNONE (-1)
#define LUA_TNIL 0
#define LUA_TBOOLEAN 1
#define LUA_TLIGHTUSERDATA 2
#define LUA_TNUMBER 3
#define LUA_TSTRING 4
#define LUA_TTABLE 5
#define LUA_TFUNCTION 6
#define LUA_TUSERDATA 7
#define LUA_TTHREAD 8
#define LUA_NUMTAGS 9
#define LUA_RIDX_GLOBALS 2
#define LUA_REGISTRYINDEX (-1000000 - 1000)
#define lua_newstate lua.newstate
#define lua_atpanic lua.atpanic
#define lua_close lua.close
#define lua_load lua.load
#define lua_pcallk lua.pcallk
#define lua_callk lua.callk
#define lua_getfield lua.getfield
#define lua_setfield lua.setfield
#define lua_gettable lua.gettable
#define lua_settable lua.settable
#define lua_getglobal lua.getglobal
#define lua_setglobal lua.setglobal
#define lua_error lua.error
#define lua_type lua.type
#define lua_typename lua.typename
#define lua_rawget lua.rawget
#define lua_rawgeti lua.rawgeti
#define lua_rawgetp lua.rawgetp
#define lua_rawset lua.rawset
#define lua_createtable lua.createtable
#define lua_setmetatable lua.setmetatable
#define lua_newuserdata lua.newuserdata
#define lua_copy lua.copy
#define lua_gettop lua.gettop
#define lua_settop lua.settop
#define lua_pushboolean lua.pushboolean
#define lua_pushnil lua.pushnil
#define lua_pushnumber lua.pushnumber
#define lua_pushinteger lua.pushinteger
#define lua_pushvalue lua.pushvalue
#define lua_pushcclosure lua.pushcclosure
#define lua_pushfstring lua.pushfstring
#define lua_pushliteral lua_pushstring
#define lua_pushlightuserdata lua.pushlightuserdata
#define lua_tolstring lua.tolstring
#define lua_toboolean lua.toboolean
#define lua_tonumberx lua.tonumberx
#define lua_tointegerx lua.tointegerx
#define lua_topointer lua.topointer
#define lua_touserdata lua.touserdata
#define lua_touserdata lua.touserdata
#define lua_next lua.next
//#define lua_remove lua.remove
#define luaL_callmeta lua.Lcallmeta
#define luaL_newmetatable lua.Lnewmetatable
#define lua_newtable(L) lua_createtable(L,0,0)
#define lua_pushcfunction(L,f) lua_pushcclosure(L,f,0)
#define lua_isnil(L,i) (lua_type(L,i)==LUA_TNIL)
#define lua_tostring(L,i) lua_tolstring(L,i,NULL)
#define lua_tonumber(L,i) lua_tonumberx(L,i,NULL)
#define lua_tointeger(L,i) lua_tointegerx(L,i,NULL)
#endif
//I'm using this struct for all the global stuff.
static struct
{
lua_State *ctx;
char readbuf[1024];
pubprogfuncs_t progfuncs;
progexterns_t progfuncsparms;
edict_t **edicttable;
unsigned int maxedicts;
luaglobalvars_t globals; //internal global structure
hashtable_t globalfields; //name->luafld_t
luafld_t globflds[1024]; //fld->offset+type
hashtable_t entityfields; //name->luafld_t
luafld_t entflds[1024]; //fld->offset+type
size_t numflds;
#ifndef LIBLUA_STATIC
qboolean triedlib;
dllhandle_t *lib;
lua_State * (QDECL *newstate) (lua_Alloc f, void *ud);
lua_CFunction (QDECL *atpanic) (lua_State *L, lua_CFunction panicf);
void (QDECL *close) (lua_State *L);
int (QDECL *load) (lua_State *L, lua_Reader reader, void *dt, const char *chunkname, const char *mode);
int (QDECL *pcallk) (lua_State *L, int nargs, int nresults, int errfunc, int ctx, lua_CFunction k);
void (QDECL *callk) (lua_State *L, int nargs, int nresults, int ctx, lua_CFunction k);
void (QDECL *getfield) (lua_State *L, int idx, const char *k);
void (QDECL *setfield) (lua_State *L, int idx, const char *k);
void (QDECL *gettable) (lua_State *L, int idx);
void (QDECL *settable) (lua_State *L, int idx);
void (QDECL *getglobal) (lua_State *L, const char *var);
void (QDECL *setglobal) (lua_State *L, const char *var);
int (QDECL *error) (lua_State *L);
int (QDECL *type) (lua_State *L, int idx);
const char *(QDECL *typename) (lua_State *L, int tp);
int (QDECL *rawget) (lua_State *L, int idx);
int (QDECL *rawgeti) (lua_State *L, int idx, lua_Integer n);
int (QDECL *rawgetp) (lua_State *L, int idx, const void *p);
void (QDECL *rawset) (lua_State *L, int idx);
void (QDECL *createtable) (lua_State *L, int narr, int nrec);
int (QDECL *setmetatable) (lua_State *L, int objindex);
void *(QDECL *newuserdata) (lua_State *L, size_t usize);
void (QDECL *copy) (lua_State *L, int fromidx, int toidx); //added in 5.3
// void (QDECL *replace) (lua_State *L, int idx); //removed in 5.3
int (QDECL *gettop) (lua_State *L);
int (QDECL *settop) (lua_State *L, int idx);
void (QDECL *pushboolean) (lua_State *L, int b);
void (QDECL *pushnil) (lua_State *L);
void (QDECL *pushnumber) (lua_State *L, lua_Number n);
void (QDECL *pushinteger) (lua_State *L, lua_Integer n);
void (QDECL *pushvalue) (lua_State *L, int idx);
void (QDECL *pushcclosure) (lua_State *L, lua_CFunction fn, int n);
const char * (QDECL *pushfstring) (lua_State *L, const char *fmt, ...);
void (QDECL *pushlightuserdata) (lua_State *L, void *p);
const char * (QDECL *tolstring) (lua_State *L, int idx, size_t *len);
int (QDECL *toboolean) (lua_State *L, int idx);
lua_Number (QDECL *tonumberx) (lua_State *L, int idx, int *isnum);
lua_Integer (QDECL *tointegerx) (lua_State *L, int idx, int *isnum);
const void *(QDECL *topointer) (lua_State *L, int idx);
void *(QDECL *touserdata) (lua_State *L, int idx);
int (QDECL *next) (lua_State *L, int idx);
// void (QDECL *remove) (lua_State *L, int idx);
int (QDECL *Lcallmeta) (lua_State *L, int obj, const char *e);
int (QDECL *Lnewmetatable) (lua_State *L, const char *tname);
#endif
} lua;
static qboolean init_lua(void)
{
#ifndef LIBLUA_STATIC
if (!lua.triedlib)
{
dllfunction_t luafuncs[] =
{
{(void*)&lua.newstate, "lua_newstate"},
{(void*)&lua.atpanic, "lua_atpanic"},
{(void*)&lua.close, "lua_close"},
{(void*)&lua.load, "lua_load"},
{(void*)&lua.pcallk, "lua_pcallk"},
{(void*)&lua.callk, "lua_callk"},
{(void*)&lua.getfield, "lua_getfield"},
{(void*)&lua.setfield, "lua_setfield"},
{(void*)&lua.gettable, "lua_gettable"},
{(void*)&lua.settable, "lua_settable"},
{(void*)&lua.getglobal, "lua_getglobal"},
{(void*)&lua.setglobal, "lua_setglobal"},
{(void*)&lua.error, "lua_error"},
{(void*)&lua.type, "lua_type"},
{(void*)&lua.typename, "lua_typename"},
{(void*)&lua.rawget, "lua_rawget"},
{(void*)&lua.rawgeti, "lua_rawgeti"},
{(void*)&lua.rawgetp, "lua_rawgetp"},
{(void*)&lua.rawset, "lua_rawset"},
{(void*)&lua.createtable, "lua_createtable"},
{(void*)&lua.setmetatable, "lua_setmetatable"},
{(void*)&lua.newuserdata, "lua_newuserdata"},
{(void*)&lua.copy, "lua_copy"},
// {(void*)&lua.replace, "lua_replace"},
{(void*)&lua.gettop, "lua_gettop"},
{(void*)&lua.settop, "lua_settop"},
{(void*)&lua.pushboolean, "lua_pushboolean"},
{(void*)&lua.pushnil, "lua_pushnil"},
{(void*)&lua.pushnumber, "lua_pushnumber"},
{(void*)&lua.pushinteger, "lua_pushinteger"},
{(void*)&lua.pushvalue, "lua_pushvalue"},
{(void*)&lua.pushcclosure, "lua_pushcclosure"},
{(void*)&lua.pushfstring, "lua_pushfstring"},
{(void*)&lua.pushlightuserdata, "lua_pushlightuserdata"},
{(void*)&lua.tolstring, "lua_tolstring"},
{(void*)&lua.toboolean, "lua_toboolean"},
{(void*)&lua.tonumberx, "lua_tonumberx"},
{(void*)&lua.tointegerx, "lua_tointegerx"},
{(void*)&lua.topointer, "lua_topointer"},
{(void*)&lua.touserdata, "lua_touserdata"},
{(void*)&lua.next, "lua_next"},
// {(void*)&lua.remove, "lua_remove"},
{(void*)&lua.Lcallmeta, "luaL_callmeta"},
{(void*)&lua.Lnewmetatable, "luaL_newmetatable"},
{NULL, NULL}
};
lua.triedlib = true;
lua.lib = Sys_LoadLibrary("lua53", luafuncs);
}
if (!lua.lib)
return false;
#endif
return true;
}
char *QDECL Lua_AddString(pubprogfuncs_t *prinst, const char *val, int minlength, pbool demarkup);
static void lua_pushedict(lua_State *L, struct edict_s *ent)
{
lua_rawgetp(L, LUA_REGISTRYINDEX, ent);
}
/*
static void lua_debugstack(lua_State *L)
{
int idx;
int top = lua_gettop(L);
for (idx = 1; idx <= top; idx++)
{
if (luaL_callmeta(L, idx, "__tostring"))
{
Con_Printf("Stack%i: %s\n", idx, lua_tolstring(L, -1, NULL));
lua_pop(L, 1);
}
else
{
int t = lua_type(L, idx);
switch (t)
{
case LUA_TNUMBER:
Con_Printf("Stack%i: %g\n", idx, lua_tonumber(L, idx));
break;
case LUA_TSTRING:
Con_Printf("Stack%i: %s\n", idx, lua_tolstring(L, idx, NULL));
break;
case LUA_TBOOLEAN:
Con_Printf("Stack%i: %s\n", idx, (lua_toboolean(L, idx) ? "true" : "false"));
break;
case LUA_TNIL:
Con_Printf("Stack%i: %s\n", idx, "nil");
break;
case LUA_TTABLE:
//special check for things that look like vectors.
lua_getfield(L, idx, "x");
lua_getfield(L, idx, "y");
lua_getfield(L, idx, "z");
if (lua_type(L, -3) == LUA_TNUMBER && lua_type(L, -2) == LUA_TNUMBER && lua_type(L, -1) == LUA_TNUMBER)
{
Con_Printf("Stack%i: '%f %f %f'\n", idx, lua_tonumberx(L, -3, NULL), lua_tonumberx(L, -2, NULL), lua_tonumberx(L, -1, NULL));
lua_pop(L, 3);
break;
}
lua_pop(L, 3);
default:
Con_Printf("Stack%i: %s: %p\n", idx, lua_typename(L, lua_type(L, idx)), lua_topointer(L, idx));
break;
}
}
}
}
*/
static void *my_lua_alloc (void *ud, void *ptr, size_t osize, size_t nsize)
{
if (nsize == 0)
{
free(ptr);
return NULL;
}
else
return realloc(ptr, nsize);
}
const char * my_lua_Reader(lua_State *L, void *data, size_t *size)
{
vfsfile_t *f = data;
*size = VFS_READ(f, lua.readbuf, sizeof(lua.readbuf));
return lua.readbuf;
}
//replace lua's standard 'print' function to use the console instead of stdout. intended to use the same linebreak rules.
static int bi_lua_print(lua_State *L)
{
//the problem is that we can only really accept strings here.
//so lets just use the tostring function to make sure things are actually readable as strings.
int args = lua_gettop(L);
int i;
const char *s;
lua_getglobal(L, "tostring");
//args now start at 1
for(i = 1; i <= args; i++)
{
lua_pushvalue(L, -1);
lua_pushvalue(L, i);
lua_pcall(L, 1, 1, 0); //pops args+func
s = lua_tolstring(L, -1, NULL);
if(s == NULL)
s = "?";
if(i > 1) Con_Printf("\t");
Con_Printf("%s", s);
lua_pop(L, 1); //pop our lstring
};
lua_pop(L, 1); //pop the cached tostring.
Con_Printf("\n");
return 0;
};
//more like quakec's print
static int bi_lua_conprint(lua_State *L)
{
//the problem is that we can only really accept strings here.
//so lets just use the tostring function to make sure things are actually readable as strings.
int args = lua_gettop(L);
int i;
const char *s;
lua_getglobal(L, "tostring");
//args start at stack index 1
for(i = 1; i <= args; i++)
{
lua_pushvalue(L, -1); //dupe the tostring
lua_pushvalue(L, i); //dupe the argument
lua_pcall(L, 1, 1, 0); //pops args+func, pushes the string result
s = lua_tolstring(L, -1, NULL);
if(s == NULL)
s = "?";
Con_Printf("%s", s);
lua_pop(L, 1); //pop our lstring
};
lua_pop(L, 1); //pop the cached tostring.
return 0;
};
static int bi_lua_dprint(lua_State *L)
{
if (!developer.ival)
return 0;
return bi_lua_conprint(L);
}
//taken from lua's baselib.c, with dependancies reduced a little.
static int bi_lua_tostring(lua_State *L)
{
// if (lua_type(L, 1) == LUA_TNONE)
// luaL_argerror(L, narg, "value expected");
if (luaL_callmeta(L, 1, "__tostring"))
return 1;
switch (lua_type(L, 1))
{
case LUA_TNUMBER:
lua_pushfstring(L, lua_tolstring(L, 1, NULL));
break;
case LUA_TSTRING:
lua_pushvalue(L, 1);
break;
case LUA_TBOOLEAN:
lua_pushstring(L, (lua_toboolean(L, 1) ? "true" : "false"));
break;
case LUA_TNIL:
lua_pushstring(L, "nil");
break;
case LUA_TTABLE:
//special check for things that look like vectors.
lua_getfield(L, 1, "x");
lua_getfield(L, 1, "y");
lua_getfield(L, 1, "z");
if (lua_type(L, -3) == LUA_TNUMBER && lua_type(L, -2) == LUA_TNUMBER && lua_type(L, -1) == LUA_TNUMBER)
{
lua_pushfstring(L, "'%g %g %g'", lua_tonumberx(L, -3, NULL), lua_tonumberx(L, -2, NULL), lua_tonumberx(L, -1, NULL));
return 1;
}
//fallthrough
default:
lua_pushfstring(L, "%s: %p", lua_typename(L, lua_type(L, 1)), lua_topointer(L, 1));
break;
}
return 1;
}
#define bi_lua_vtos bi_lua_tostring
#define bi_lua_ftos bi_lua_tostring
//taken from lua's baselib.c, with dependancies reduced a little.
static int bi_lua_tonumber(lua_State *L)
{
// if (lua_type(L, 1) == LUA_TNONE)
// luaL_argerror(L, narg, "value expected");
if (luaL_callmeta(L, 1, "__tonumber"))
return 1;
switch (lua_type(L, 1))
{
case LUA_TSTRING:
lua_pushnumber(L, atof(lua_tostring(L, 1)));
break;
case LUA_TNUMBER:
lua_pushvalue(L, 1);
break;
case LUA_TBOOLEAN:
lua_pushnumber(L, lua_toboolean(L, 1));
break;
case LUA_TNIL:
lua_pushnumber(L, 0);
break;
case LUA_TTABLE:
//special check for things that look like vectors.
lua_getfield(L, 1, "x");
lua_getfield(L, 1, "y");
lua_getfield(L, 1, "z");
if (lua_type(L, -3) == LUA_TNUMBER && lua_type(L, -2) == LUA_TNUMBER && lua_type(L, -1) == LUA_TNUMBER)
{
vec3_t v = {lua_tonumberx(L, -3, NULL), lua_tonumberx(L, -2, NULL), lua_tonumberx(L, -1, NULL)};
lua_pushnumber(L, DotProduct(v,v));
return 1;
}
lua_getfield(L, 1, "entnum");
if (lua_type(L, -1) == LUA_TNUMBER)
return 1;
//fallthrough
default:
lua_pushfstring(L, "%s: %p", lua_typename(L, lua_type(L, 1)), lua_topointer(L, 1));
break;
}
return 1;
}
#define bi_lua_stof bi_lua_tonumber
static int my_lua_panic(lua_State *L)
{
const char *s = lua_tolstring(L, -1, NULL);
Sys_Error("lua error: %s", s);
}
static int my_lua_entity_eq(lua_State *L)
{
//table1=1
//table2=2
unsigned int entnum1, entnum2;
lua_getfield(L, 1, "entnum");
entnum1 = lua_tointegerx(L, -1, NULL);
lua_getfield(L, 2, "entnum");
entnum2 = lua_tointegerx(L, -1, NULL);
lua_pop(L, 2);
lua_pushboolean(L, entnum1 == entnum2);
return 1;
}
static int my_lua_entity_tostring(lua_State *L)
{
//table=1
unsigned int entnum;
lua_getfield(L, 1, "entnum");
entnum = lua_tointegerx(L, -1, NULL);
lua_pop(L, 1);
lua_pushstring(L, va("entity: %u", entnum));
return 1;
}
static int my_lua_vec3_tostring(lua_State *L)
{
//table=1
lua_Number x,y,z;
lua_getfield(L, 1, "x");
x = lua_tonumber(L, -1);
lua_getfield(L, 1, "y");
y = lua_tonumber(L, -1);
lua_getfield(L, 1, "z");
z = lua_tonumber(L, -1);
lua_pop(L, 3);
lua_pushstring(L, va("'%g %g %g'", x, y, z));
return 1;
}
static qboolean lua_readvector(lua_State *L, int idx, float *result)
{
switch(lua_type(L, idx))
{
case LUA_TSTRING:
{
//we parse strings primnarily for easy .ent(or bsp) loading support.
const char *str = lua_tolstring(L, idx, NULL);
str = COM_Parse(str);
result[0] = atof(com_token);
str = COM_Parse(str);
result[1] = atof(com_token);
str = COM_Parse(str);
result[2] = atof(com_token);
}
return true;
case LUA_TTABLE:
lua_getfield(L, idx, "x");
result[0] = lua_tonumberx(L, -1, NULL);
lua_getfield(L, idx, "y");
result[1] = lua_tonumberx(L, -1, NULL);
lua_getfield(L, idx, "z");
result[2] = lua_tonumberx(L, -1, NULL);
lua_pop(L, 3);
return true;
case LUA_TNUMBER:
result[0] =
result[1] =
result[2] = lua_tonumber(L, idx);
break;
case LUA_TNIL:
result[0] = 0;
result[1] = 0;
result[2] = 0;
break;
default:
Con_Printf("Expected vector, got %s\n", lua_typename(L, lua_type(L, idx)));
result[0] = 0;
result[1] = 0;
result[2] = 0;
break;
}
return false;
}
static void lua_pushvector(lua_State *L, vec_t x, vec_t y, vec_t z)
{
lua_newtable(L);
//FIXME: should provide a metatable with a __tostring
lua_pushnumber(L, x);
lua_setfield (L, -2, "x");
lua_pushnumber(L, y);
lua_setfield (L, -2, "y");
lua_pushnumber(L, z);
lua_setfield (L, -2, "z");
luaL_getmetatable(L, "vec3_t");
lua_setmetatable(L, -2);
}
static int my_lua_vec3_eq(lua_State *L)
{
vec3_t a, b;
lua_readvector(L, 1, a);
lua_readvector(L, 2, b);
lua_pushboolean(L, a[0]==b[0] && a[1]==b[1] && a[2]==b[2]);
return 1;
}
static int my_lua_vec3_sub(lua_State *L)
{
vec3_t a, b;
lua_readvector(L, 1, a);
lua_readvector(L, 2, b);
lua_pushvector(L, a[0]-b[0], a[1]-b[1], a[2]-b[2]);
return 1;
}
static int my_lua_vec3_mul(lua_State *L)
{
vec3_t a, b;
if (lua_readvector(L, 1, a) + lua_readvector(L, 2, b) == 2)
lua_pushnumber(L, DotProduct(a,b)); //vec*vec is a dotproduct
else
lua_pushvector(L, a[0]*b[0], a[1]*b[1], a[2]*b[2]); //one arg is a scaler. woot.
return 1;
}
static int my_lua_vec3_add(lua_State *L)
{
vec3_t a, b;
lua_readvector(L, 1, a);
lua_readvector(L, 2, b);
lua_pushvector(L, a[0]+b[0], a[1]+b[1], a[2]+b[2]);
return 1;
}
static int my_lua_vec3_len(lua_State *L)
{
vec3_t a;
lua_readvector(L, 1, a);
lua_pushnumber(L, VectorLength(a));
return 1;
}
static int my_lua_entity_set(lua_State *L) //__newindex
{
// Con_Printf("lua_entity_set: ");
// my_lua_print(L);
//table=1
//key=2
//value=3
if (lua_type(L, 2) == LUA_TSTRING)
{
const char *s = lua_tolstring(L, 2, NULL);
luafld_t *fld = Hash_GetInsensitive(&lua.entityfields, s);
eval_t *eval;
unsigned int entnum;
if (fld && fld->offset >= 0)
{
lua_getfield(L, 1, "entnum");
entnum = lua_tointegerx(L, -1, NULL);
lua_pop(L, 1);
if (entnum < lua.maxedicts && lua.edicttable[entnum] && !ED_ISFREE(lua.edicttable[entnum]))
{
eval = (eval_t*)((char*)lua.edicttable[entnum]->v + fld->offset);
switch(fld->type)
{
case ev_float:
eval->_float = lua_tonumberx(L, 3, NULL);
return 0;
case ev_vector:
lua_readvector(L, 3, eval->_vector);
return 0;
case ev_integer:
eval->_int = lua_tointegerx(L, 3, NULL);
return 0;
case ev_function:
if (lua_type(L, 3) == LUA_TNIL)
eval->function = 0; //so the engine can distinguish between nil and not.
else
eval->function = fld->offset | ((entnum+1)<<10);
lua_pushlightuserdata(L, (void *)(qintptr_t)fld->offset); //execute only knows a function id, so we need to translate the store to match.
lua_replace(L, 2);
lua_rawset(L, 1);
return 0;
case ev_string:
if (lua_type(L, 3) == LUA_TNIL)
eval->string = 0; //so the engine can distinguish between nil and not.
else
eval->string = fld->offset | ((entnum+1)<<10);
lua_pushlightuserdata(L, (void *)(qintptr_t)fld->offset); //execute only knows a string id, so we need to translate the store to match.
lua_replace(L, 2);
lua_rawset(L, 1);
return 0;
case ev_entity:
//read the table's entnum field so we know which one its meant to be.
lua_getfield(L, 3, "entnum");
eval->edict = lua_tointegerx(L, -1, NULL);
return 0;
}
}
}
}
lua_rawset(L, 1);
return 0;
}
static int my_lua_entity_get(lua_State *L) //__index
{
// Con_Printf("lua_entity_get: ");
// my_lua_print(L);
//table=1
//key=2
if (lua_type(L, 2) == LUA_TSTRING)
{
const char *s = lua_tolstring(L, 2, NULL);
luafld_t *fld = Hash_GetInsensitive(&lua.entityfields, s);
eval_t *eval;
int entnum;
if (fld)
{
if (fld->offset < 0)
{ //negative offsets are not real fields, but are just there to ensure that no nils appear
lua_rawget(L, 1);
if (lua_isnil(L, -1))
{
lua_pop(L, 1);
switch(fld->type)
{
case ev_float:
lua_pushnumber(L, 0);
return 1;
case ev_integer:
lua_pushinteger(L, 0);
return 1;
case ev_vector:
lua_pushvector(L, 0, 0, 0);
break;
case ev_function:
default: //no idea
lua_pushnil(L);
break;
case ev_string:
lua_pushliteral(L, "");
break;
case ev_entity:
lua_pushedict(L, lua.edicttable[0]);
break;
}
}
return 1;
}
lua_getfield(L, 1, "entnum");
entnum = lua_tointegerx(L, -1, NULL);
lua_pop(L, 1);
if (entnum < lua.maxedicts && lua.edicttable[entnum])// && !lua.edicttable[entnum]->isfree)
{
eval = (eval_t*)((char*)lua.edicttable[entnum]->v + fld->offset);
switch(fld->type)
{
case ev_float:
lua_pushnumber(L, eval->_float);
return 1;
case ev_integer:
lua_pushinteger(L, eval->_int);
return 1;
case ev_vector:
lua_pushvector(L, eval->_vector[0], eval->_vector[1], eval->_vector[2]);
return 1;
case ev_function:
case ev_string:
lua_pushlightuserdata(L, (void *)(qintptr_t)(eval->function & 1023)); //execute only knows a function id, so we need to translate the store to match.
lua_replace(L, 2);
lua_rawget(L, 1);
return 1;
case ev_entity:
//return the table for the entity via the lua registry.
lua_pushlightuserdata(lua.ctx, lua.edicttable[eval->edict]);
lua_gettable(lua.ctx, LUA_REGISTRYINDEX);
return 1;
}
}
}
}
//make sure it exists so we don't get called constantly if code loops through stuff that wasn't set.
// lua_pushstring(L, "nil");
lua_rawget(L, 1);
return 1;
}
static int my_lua_global_set(lua_State *L) //__newindex
{
// Con_Printf("my_lua_global_set: ");
// my_lua_print(L);
//table=1
//key=2
//value=3
if (lua_type(L, 2) == LUA_TSTRING)
{
const char *s = lua_tolstring(L, 2, NULL);
luafld_t *fld = Hash_GetInsensitive(&lua.globalfields, s);
eval_t *eval;
if (fld)
{
eval = (eval_t*)((char*)&lua.globals + fld->offset);
switch(fld->type)
{
case ev_float:
eval->_float = lua_tonumberx(L, 3, NULL);
return 0;
case ev_vector:
lua_getfield(L, 3, "x");
eval->_vector[0] = lua_tonumberx(L, -1, NULL);
lua_getfield(L, 3, "y");
eval->_vector[1] = lua_tonumberx(L, -1, NULL);
lua_getfield(L, 3, "z");
eval->_vector[2] = lua_tonumberx(L, -1, NULL);
return 0;
case ev_integer:
eval->_int = lua_tointegerx(L, 3, NULL);
return 0;
case ev_function:
if (lua_type(L, 3) == LUA_TNIL)
eval->function = 0; //so the engine can distinguish between nil and not.
else
eval->function = fld->offset;
lua_pushlightuserdata(L, (void *)fld->offset); //execute only knows a function id, so we need to translate the store to match.
lua_replace(L, 2);
lua_rawset(L, 1);
return 0;
case ev_string:
if (lua_type(L, 3) == LUA_TNIL)
eval->string = 0; //so the engine can distinguish between nil and not.
else
eval->string = fld->offset;
lua_pushlightuserdata(L, (void *)fld->offset); //execute only knows a string id, so we need to translate the store to match.
lua_replace(L, 2);
lua_rawset(L, 1);
return 0;
case ev_entity:
//read the table's entnum field so we know which one its meant to be.
lua_getfield(L, 3, "entnum");
eval->edict = lua_tointegerx(L, -1, NULL);
return 0;
}
}
}
lua_rawset(L, 1);
return 0;
}
static int my_lua_global_get(lua_State *L) //__index
{
// Con_Printf("my_lua_global_get: ");
// my_lua_print(L);
//table=1
//key=2
if (lua_type(L, 2) == LUA_TSTRING)
{
const char *s = lua_tolstring(L, 2, NULL);
luafld_t *fld = Hash_GetInsensitive(&lua.globalfields, s);
eval_t *eval;
if (fld)
{
eval = (eval_t*)((char*)&lua.globals + fld->offset);
switch(fld->type)
{
case ev_float:
lua_pushnumber(L, eval->_float);
return 1;
case ev_integer:
lua_pushinteger(L, eval->_int);
return 1;
case ev_vector:
lua_pushvector(L, eval->_vector[0], eval->_vector[1], eval->_vector[2]);
return 1;
case ev_function:
lua_pushlightuserdata(L, (void *)(qintptr_t)eval->function); //execute only knows a function id, so we need to translate the store to match.
lua_replace(L, 2);
lua_rawget(L, 1);
return 1;
case ev_entity:
lua_pushedict(L, lua.edicttable[eval->edict]);
return 1;
}
}
}
//make sure it exists so we don't get called constantly if code loops through stuff that wasn't set.
// lua_pushstring(L, "nil");
lua_rawget(L, 1);
return 1;
}
static int bi_lua_setmodel(lua_State *L)
{
int entnum;
edict_t *e;
lua_getfield(L, 1, "entnum");
entnum = lua_tointegerx(L, -1, NULL);
e = (entnum>=lua.maxedicts)?NULL:lua.edicttable[entnum];
PF_setmodel_Internal(&lua.progfuncs, e, lua_tolstring(L, 2, NULL));
return 0;
}
static int bi_lua_precache_model(lua_State *L)
{
PF_precache_model_Internal(&lua.progfuncs, lua_tolstring(L, 1, NULL), false);
return 0;
}
#define bi_lua_precache_model2 bi_lua_precache_model
static int bi_lua_precache_sound(lua_State *L)
{
PF_precache_sound_Internal(&lua.progfuncs, lua_tolstring(L, 1, NULL), false);
return 0;
}
#define bi_lua_precache_sound2 bi_lua_precache_sound
static int bi_lua_precache_file(lua_State *L)
{
return 0;
}
static int bi_lua_lightstyle(lua_State *L)
{
vec3_t rgb;
if (lua_gettop(L) >= 3)
lua_readvector(L, 3, rgb);
else
VectorSet(rgb, 1, 1, 1);
PF_applylightstyle(lua_tointegerx(L, 1, NULL), lua_tolstring(L, 2, NULL), rgb);
return 0;
}
static int bi_lua_spawn(lua_State *L)
{
edict_t *e = lua.progfuncs.EntAlloc(&lua.progfuncs, false, 0);
if (e)
lua_pushedict(L, e);
else
lua_pushnil(L);
return 1;
}
static int bi_lua_remove(lua_State *L)
{
int entnum;
edict_t *e;
lua_getfield(L, 1, "entnum");
entnum = lua_tointegerx(L, -1, NULL);
e = (entnum>=lua.maxedicts)?NULL:lua.edicttable[entnum];
if (e)
lua.progfuncs.EntFree(&lua.progfuncs, e, false);
return 0;
}
static int bi_lua_setorigin(lua_State *L)
{
edict_t *e;
lua_getfield(L, 1, "entnum");
e = EDICT_NUM_UB((&lua.progfuncs), lua_tointegerx(L, -1, NULL));
lua_readvector(L, 2, e->v->origin);
World_LinkEdict (&sv.world, (wedict_t*)e, false);
return 0;
}
static int bi_lua_setsize(lua_State *L)
{
edict_t *e;
lua_getfield(L, 1, "entnum");
e = EDICT_NUM_UB((&lua.progfuncs), lua_tointegerx(L, -1, NULL));
lua_readvector(L, 2, e->v->mins);
lua_readvector(L, 3, e->v->maxs);
VectorSubtract (e->v->maxs, e->v->mins, e->v->size);
World_LinkEdict (&sv.world, (wedict_t*)e, false);
return 0;
}
static int bi_lua_localcmd(lua_State *L)
{
const char *str = lua_tolstring(lua.ctx, 1, NULL);
Cbuf_AddText (str, RESTRICT_INSECURE);
return 0;
}
static int bi_lua_changelevel(lua_State *L)
{
const char *s, *spot;
// make sure we don't issue two changelevels (unless the last one failed)
if (sv.mapchangelocked)
return 0;
sv.mapchangelocked = true;
if (lua_type(L, 2) == LUA_TSTRING) //and not nil or none
{
s = lua_tolstring(lua.ctx, 1, NULL);
spot = lua_tolstring(lua.ctx, 2, NULL);
Cbuf_AddText (va("\nchangelevel %s %s\n",s, spot), RESTRICT_LOCAL);
}
else
{
s = lua_tolstring(lua.ctx, 1, NULL);
Cbuf_AddText (va("\nchangelevel %s\n",s), RESTRICT_LOCAL);
}
return 0;
}
static int bi_lua_stuffcmd(lua_State *L)
{
int entnum;
const char *str;
lua_getfield(L, 1, "entnum");
entnum = lua_tointegerx(L, -1, NULL);
str = lua_tolstring(L, 2, NULL);
PF_stuffcmd_Internal(entnum, str, 0);
return 0;
}
static int bi_lua_centerprint(lua_State *L)
{
int entnum;
const char *str;
lua_getfield(L, 1, "entnum");
entnum = lua_tointegerx(L, -1, NULL);
str = lua_tolstring(L, 2, NULL);
if (!str)
str = "";
PF_centerprint_Internal(entnum, false, str);
return 0;
}
static int bi_lua_getinfokey(lua_State *L)
{
int entnum;
const char *key;
lua_getfield(L, 1, "entnum");
entnum = lua_tointegerx(L, -1, NULL);
key = lua_tolstring(L, 2, NULL);
key = PF_infokey_Internal(entnum, key);
lua_pushstring(L, key);
return 1;
}
#define bi_lua_infokey bi_lua_getinfokey
static int bi_lua_setinfokey(lua_State *L)
{
int entnum;
const char *key;
const char *value;
int result;
lua_getfield(L, 1, "entnum");
entnum = lua_tointegerx(L, -1, NULL);
key = lua_tolstring(L, 2, NULL);
value = lua_tolstring(L, 3, NULL);
result = PF_ForceInfoKey_Internal(entnum, key, value, strlen(value));
lua_pushinteger(L, result);
return 1;
}
static int bi_lua_ambientsound(lua_State *L)
{
vec3_t pos;
const char *samp = lua_tolstring(L, 2, NULL);
float vol = lua_tonumberx(L, 3, NULL);
float attenuation = lua_tonumberx(L, 4, NULL);
lua_readvector(L, 1, pos);
PF_ambientsound_Internal(pos, samp, vol, attenuation);
return 0;
}
static int bi_lua_sound(lua_State *L)
{
int entnum;
float channel = lua_tonumberx(L, 2, NULL);
const char *samp = lua_tolstring(L, 3, NULL);
float volume = lua_tonumberx(L, 4, NULL);
float attenuation = lua_tonumberx(L, 5, NULL);
lua_getfield(L, 1, "entnum");
entnum = lua_tointegerx(L, -1, NULL);
//note: channel & 256 == reliable
SVQ1_StartSound (NULL, (wedict_t*)EDICT_NUM_UB((&lua.progfuncs), entnum), channel, samp, volume*255, attenuation, 0, 0, 0);
return 0;
}
static int bi_lua_pointcontents(lua_State *L)
{
vec3_t pos;
lua_readvector(L, 1, pos);
lua_pushinteger(L, sv.world.worldmodel->funcs.PointContents(sv.world.worldmodel, NULL, pos));
return 1;
}
static int bi_lua_setspawnparms(lua_State *L)
{
globalvars_t pr_globals;
lua_getfield(L, 1, "entnum");
pr_globals.param[0].i = lua_tointegerx(L, -1, NULL);
PF_setspawnparms(&lua.progfuncs, &pr_globals);
return 0;
}
static int bi_lua_makestatic(lua_State *L)
{
globalvars_t pr_globals;
lua_getfield(L, 1, "entnum");
pr_globals.param[0].i = lua_tointegerx(L, -1, NULL);
PF_makestatic(&lua.progfuncs, &pr_globals);
return 0;
}
static int bi_lua_droptofloor(lua_State *L)
{
extern cvar_t pr_droptofloorunits;
wedict_t *ent;
vec3_t end;
vec3_t start;
trace_t trace;
const float *gravitydir;
static const vec3_t standardgravity = {0,0,-1};
pubprogfuncs_t *prinst = &lua.progfuncs;
world_t *world = prinst->parms->user;
ent = PROG_TO_WEDICT((&lua.progfuncs), pr_global_struct->self);
if (ent->xv->gravitydir[2] || ent->xv->gravitydir[1] || ent->xv->gravitydir[0])
gravitydir = ent->xv->gravitydir;
else
gravitydir = standardgravity;
VectorCopy (ent->v->origin, end);
if (pr_droptofloorunits.value > 0)
VectorMA(end, pr_droptofloorunits.value, gravitydir, end);
else
VectorMA(end, 256, gravitydir, end);
VectorCopy (ent->v->origin, start);
trace = World_Move (world, start, ent->v->mins, ent->v->maxs, end, MOVE_NORMAL, ent);
if (trace.fraction == 1 || trace.allsolid)
lua_pushboolean(L, false);
else
{
VectorCopy (trace.endpos, ent->v->origin);
World_LinkEdict (world, ent, false);
ent->v->flags = (int)ent->v->flags | FL_ONGROUND;
ent->v->groundentity = EDICT_TO_PROG(prinst, trace.ent);
lua_pushboolean(L, true);
}
return 1;
}
static int bi_lua_checkbottom(lua_State *L)
{
qboolean okay;
int entnum;
vec3_t up = {0,0,1};
lua_getfield(L, 1, "entnum");
entnum = lua_tointegerx(L, -1, NULL);
okay = World_CheckBottom(&sv.world, (wedict_t*)EDICT_NUM_UB((&lua.progfuncs), entnum), up);
lua_pushboolean(L, okay);
return 1;
}
static int bi_lua_bprint_qw(lua_State *L)
{
int level = lua_tointegerx(L, 1, NULL);
const char *str = lua_tolstring(L, 2, NULL);
SV_BroadcastPrintf (level, "%s", str);
return 0;
}
static int bi_lua_bprint_nq(lua_State *L)
{
int level = PRINT_HIGH;
const char *str = lua_tolstring(L, 1, NULL);
SV_BroadcastPrintf (level, "%s", str);
return 0;
}
static int bi_lua_sprint_qw(lua_State *L)
{
int entnum;
int level = lua_tointegerx(L, 2, NULL);
const char *str = lua_tolstring(L, 3, NULL);
lua_getfield(L, 1, "entnum");
entnum = lua_tointegerx(L, -1, NULL);
if (entnum < 1 || entnum > sv.allocated_client_slots)
{
Con_TPrintf ("tried to sprint to a non-client\n");
return 0;
}
SV_ClientPrintf (&svs.clients[entnum-1], level, "%s", str);
return 0;
}
static int bi_lua_sprint_nq(lua_State *L)
{
int entnum;
int level = PRINT_HIGH;
const char *str = lua_tolstring(L, 2, NULL);
lua_getfield(L, 1, "entnum");
entnum = lua_tointegerx(L, -1, NULL);
if (entnum < 1 || entnum > sv.allocated_client_slots)
{
Con_TPrintf ("tried to sprint to a non-client\n");
return 0;
}
SV_ClientPrintf (&svs.clients[entnum-1], level, "%s", str);
return 0;
}
static int bi_lua_cvar_set(lua_State *L)
{
const char *name = lua_tolstring(L, 1, NULL);
const char *str = lua_tolstring(L, 2, NULL);
cvar_t *var = Cvar_FindVar(name);
if (var)
Cvar_Set(var, str);
return 0;
}
static int bi_lua_cvar_get(lua_State *L)
{
const char *name = lua_tolstring(L, 1, NULL);
cvar_t *var = Cvar_FindVar(name);
if (var)
lua_pushstring(L, var->string);
else
lua_pushnil(L);
return 1;
}
static int bi_lua_cvar(lua_State *L) //useless get[float]
{
const char *name = lua_tolstring(L, 1, NULL);
cvar_t *var = Cvar_FindVar(name);
if (var)
lua_pushnumber(L, var->value);
else
lua_pushnil(L);
return 1;
}
static int pushset_trace_globals(lua_State *L, trace_t *trace)
{
pr_global_struct->trace_allsolid = trace->allsolid;
pr_global_struct->trace_startsolid = trace->startsolid;
pr_global_struct->trace_fraction = trace->fraction;
pr_global_struct->trace_inwater = trace->inwater;
pr_global_struct->trace_inopen = trace->inopen;
pr_global_struct->trace_surfaceflagsf = trace->surface?trace->surface->flags:0;
pr_global_struct->trace_surfaceflagsi = trace->surface?trace->surface->flags:0;
// if (pr_global_struct->trace_surfacename)
// prinst->SetStringField(prinst, NULL, &pr_global_struct->trace_surfacename, tr->surface?tr->surface->name:"", true);
pr_global_struct->trace_endcontentsf = trace->contents;
pr_global_struct->trace_endcontentsi = trace->contents;
// if (trace.fraction != 1)
// VectorMA (trace->endpos, 4, trace->plane.normal, P_VEC(trace_endpos));
// else
VectorCopy (trace->endpos, P_VEC(trace_endpos));
VectorCopy (trace->plane.normal, P_VEC(trace_plane_normal));
pr_global_struct->trace_plane_dist = trace->plane.dist;
pr_global_struct->trace_ent = trace->ent?((wedict_t*)trace->ent)->entnum:0;
lua_newtable(L);
lua_pushnumber(L, trace->fraction);
lua_setfield(L, -2, "fraction");
lua_pushvector(L, trace->endpos[0], trace->endpos[1], trace->endpos[2]);
lua_setfield(L, -2, "endpos");
if (trace->ent)
lua_pushedict(L, trace->ent);
else
lua_pushedict(L, lua.edicttable[0]);
lua_setfield(L, -2, "ent");
lua_pushboolean(L, trace->allsolid);
lua_setfield(L, -2, "allsolid");
lua_pushboolean(L, trace->startsolid);
lua_setfield(L, -2, "startsolid");
lua_pushboolean(L, trace->inwater);
lua_setfield(L, -2, "inwater");
lua_pushboolean(L, trace->inopen);
lua_setfield(L, -2, "inopen");
lua_newtable(L);
lua_pushnumber(L, trace->plane.dist);
lua_setfield(L, -2, "dist");
lua_pushvector(L, trace->plane.normal[0], trace->plane.normal[1], trace->plane.normal[2]);
lua_setfield(L, -2, "normal");
lua_setfield(L, -2, "plane");
return 1;
}
static int bi_lua_traceline(lua_State *L)
{
vec3_t v1, v2;
trace_t trace;
int nomonsters;
wedict_t *ent;
lua_readvector(L, 1, v1);
lua_readvector(L, 2, v2);
nomonsters = lua_tointegerx(L, 3, NULL);
lua_getfield(L, 4, "entnum");
ent = (wedict_t*)EDICT_NUM_UB((&lua.progfuncs), lua_tointegerx(L, -1, NULL));
trace = World_Move (&sv.world, v1, vec3_origin, vec3_origin, v2, nomonsters|MOVE_IGNOREHULL, (wedict_t*)ent);
return pushset_trace_globals(L, &trace);
}
static int bi_lua_tracebox(lua_State *L)
{
vec3_t v1, v2, mins, maxs;
trace_t trace;
int nomonsters;
wedict_t *ent;
lua_readvector(L, 1, v1);
lua_readvector(L, 2, v2);
lua_readvector(L, 3, mins);
lua_readvector(L, 4, maxs);
nomonsters = lua_tointegerx(L, 5, NULL);
lua_getfield(L, 6, "entnum");
ent = (wedict_t*)EDICT_NUM_UB((&lua.progfuncs), lua_tointegerx(L, -1, NULL));
trace = World_Move (&sv.world, v1, mins, maxs, v2, nomonsters|MOVE_IGNOREHULL, (wedict_t*)ent);
return pushset_trace_globals(L, &trace);
}
static int bi_lua_walkmove(lua_State *L)
{
pubprogfuncs_t *prinst = &lua.progfuncs;
world_t *world = prinst->parms->user;
wedict_t *ent;
float yaw, dist;
vec3_t move;
int oldself;
vec3_t axis[3];
ent = PROG_TO_WEDICT(prinst, *world->g.self);
yaw = lua_tonumberx(L, 1, NULL);
dist = lua_tonumberx(L, 2, NULL);
if ( !( (int)ent->v->flags & (FL_ONGROUND|FL_FLY|FL_SWIM) ) )
{
lua_pushboolean(L, false);
return 1;
}
World_GetEntGravityAxis(ent, axis);
yaw = yaw*M_PI*2 / 360;
VectorScale(axis[0], cos(yaw)*dist, move);
VectorMA(move, sin(yaw)*dist, axis[1], move);
// save program state, because World_movestep may call other progs
oldself = *world->g.self;
lua_pushboolean(L, World_movestep(world, ent, move, axis, true, false, NULL));
// restore program state
*world->g.self = oldself;
return 1;
}
static int bi_lua_movetogoal(lua_State *L)
{
pubprogfuncs_t *prinst = &lua.progfuncs;
world_t *world = prinst->parms->user;
wedict_t *ent;
float dist;
ent = PROG_TO_WEDICT(prinst, *world->g.self);
dist = lua_tonumberx(L, 1, NULL);
World_MoveToGoal (world, ent, dist);
return 0;
}
static int bi_lua_nextent(lua_State *L)
{
world_t *world = &sv.world;
int i;
wedict_t *ent;
lua_getfield(L, 1, "entnum");
i = lua_tointegerx(L, -1, NULL);
while (1)
{
i++;
if (i == world->num_edicts)
{
ent = world->edicts;
break;
}
ent = (wedict_t *)lua.edicttable[i];
if (!ED_ISFREE(ent))
{
break;
}
}
lua_pushedict(L, (struct edict_s *)ent);
return 1;
}
static int bi_lua_nextclient(lua_State *L)
{
world_t *world = &sv.world;
int i;
wedict_t *ent;
lua_getfield(L, 1, "entnum");
i = lua_tointegerx(L, -1, NULL);
while (1)
{
i++;
if (i == sv.allocated_client_slots)
{
ent = world->edicts;
break;
}
ent = WEDICT_NUM_UB(world->progs, i);
if (!ED_ISFREE(ent))
{
break;
}
}
lua_pushlightuserdata(L, ent);
lua_gettable(L, LUA_REGISTRYINDEX);
return 1;
}
static int bi_lua_checkclient(lua_State *L)
{
pubprogfuncs_t *prinst = &lua.progfuncs;
wedict_t *ent;
ent = WEDICT_NUM_PB(prinst, PF_checkclient_Internal(prinst));
lua_pushlightuserdata(L, ent);
lua_gettable(L, LUA_REGISTRYINDEX);
return 1;
}
static int bi_lua_random(lua_State *L)
{
lua_pushnumber(L, (rand ()&0x7fff) / ((float)0x8000));
return 1;
}
static int bi_lua_makevectors(lua_State *L)
{
vec3_t angles;
//this is annoying as fuck in lua, what with it writing globals and stuff.
//perhaps we should support f,u,l=makevectors(ang)... meh, cba.
lua_readvector(L, 1, angles);
AngleVectors (angles, pr_global_struct->v_forward, pr_global_struct->v_right, pr_global_struct->v_up);
#if 1
//globals suck, and lua allows multi-return.
lua_pushvector(L, (pr_global_struct->v_forward)[0], (pr_global_struct->v_forward)[1], (pr_global_struct->v_forward)[2]);
lua_pushvector(L, (pr_global_struct->v_right)[0], (pr_global_struct->v_right)[1], (pr_global_struct->v_right)[2]);
lua_pushvector(L, (pr_global_struct->v_up)[0], (pr_global_struct->v_up)[1], (pr_global_struct->v_up)[2]);
return 3;
#else
return 0;
#endif
}
static int bi_lua_normalize(lua_State *L)
{
vec3_t v;
lua_readvector(L, 1, v);
VectorNormalize(v);
lua_pushvector(L, v[0], v[1], v[2]);
return 1;
}
static int bi_lua_vectoangles(lua_State *L)
{
vec3_t forward;
vec3_t up;
float *uv = NULL;
vec3_t ret;
lua_readvector(L, 1, forward);
if (lua_type(L, 2) != LUA_TNONE)
{
lua_readvector(L, 1, up);
uv = up;
}
VectorAngles(forward, uv, ret, true);
lua_pushvector(L, ret[0], ret[1], ret[2]);
return 1;
}
static int bi_lua_vectoyaw(lua_State *L)
{
vec3_t forward;
vec3_t up;
float *uv = NULL;
vec3_t ret;
lua_readvector(L, 1, forward);
if (lua_type(L, 2) != LUA_TNONE)
{
lua_readvector(L, 1, up);
uv = up;
}
VectorAngles(forward, uv, ret, true);
lua_pushnumber(L, ret[1]);
return 1;
}
void QCBUILTIN PF_aim (pubprogfuncs_t *prinst, struct globalvars_s *pr_globals);
static int bi_lua_aim(lua_State *L)
{ //aim builtin is for keyboard users, if they still exist.
globalvars_t pr_globals;
lua_getfield(L, 1, "entnum");
pr_globals.param[0].i = lua_tointeger(L, -1);
pr_globals.param[1].f = lua_tonumber(L, 2); //speed
PF_aim(&lua.progfuncs, &pr_globals);
lua_pushvector(L, pr_globals.ret.vec[0], pr_globals.ret.vec[1], pr_globals.ret.vec[2]);
return 1;
}
static int bi_lua_tokenize(lua_State *L)
{
const char *instring = lua_tolstring(L, 1, NULL);
int argc = 0;
lua_newtable(L);
while(NULL != (instring = COM_Parse(instring)))
{
//lua is traditionally 1-based
//for i=1,t.argc do
lua_pushinteger(L, ++argc);
lua_pushstring(L, com_token);
lua_settable(L, -3);
if (argc == 1)
{
while (*instring == ' ' || *instring == '\t')
instring++;
lua_pushstring(L, instring);
lua_setfield(L, -2, "args"); //args is all-but-the-first
}
}
lua_pushinteger(L, argc);
lua_setfield(L, -2, "argc"); //argc is the count.
return 1;
}
static int bi_lua_findradiuschain(lua_State *L)
{
extern cvar_t sv_gameplayfix_blowupfallenzombies;
world_t *world = &sv.world;
edict_t *ent, *chain;
float rad;
vec3_t org;
vec3_t eorg;
int i, j;
chain = (edict_t *)world->edicts;
lua_readvector(L, 1, org);
rad = lua_tonumberx(L, 2, NULL);
rad = rad*rad;
for (i=1 ; i<world->num_edicts ; i++)
{
ent = EDICT_NUM_PB(world->progs, i);
if (ED_ISFREE(ent))
continue;
if (ent->v->solid == SOLID_NOT && (progstype != PROG_QW || !((int)ent->v->flags & FL_FINDABLE_NONSOLID)) && !sv_gameplayfix_blowupfallenzombies.value)
continue;
for (j=0 ; j<3 ; j++)
eorg[j] = org[j] - (ent->v->origin[j] + (ent->v->mins[j] + ent->v->maxs[j])*0.5);
if (DotProduct(eorg,eorg) > rad)
continue;
ent->v->chain = EDICT_TO_PROG(world->progs, chain);
chain = ent;
}
lua_pushlightuserdata(L, chain);
lua_gettable(L, LUA_REGISTRYINDEX);
return 1;
}
static int bi_lua_findradiustable(lua_State *L)
{
extern cvar_t sv_gameplayfix_blowupfallenzombies;
world_t *world = &sv.world;
edict_t *ent, *chain;
float rad;
vec3_t org;
vec3_t eorg;
int i, j;
int results = 1; //lua arrays are 1-based
chain = (edict_t *)world->edicts;
lua_readvector(L, 1, org);
rad = lua_tonumberx(L, 2, NULL);
rad = rad*rad;
lua_newtable(L); //our return value.
for (i=1 ; i<world->num_edicts ; i++)
{
ent = EDICT_NUM_PB(world->progs, i);
if (ED_ISFREE(ent))
continue;
if (ent->v->solid == SOLID_NOT && (progstype != PROG_QW || !((int)ent->v->flags & FL_FINDABLE_NONSOLID)) && !sv_gameplayfix_blowupfallenzombies.value)
continue;
for (j=0 ; j<3 ; j++)
eorg[j] = org[j] - (ent->v->origin[j] + (ent->v->mins[j] + ent->v->maxs[j])*0.5);
if (DotProduct(eorg,eorg) > rad)
continue;
lua_pushinteger(L, ++results);
lua_pushlightuserdata(L, ent);
lua_gettable(L, LUA_REGISTRYINDEX);
lua_settable(L, -3);
}
lua_pushlightuserdata(L, chain);
lua_gettable(L, LUA_REGISTRYINDEX);
return 1;
}
#define bi_lua_findradius bi_lua_findradiuschain
static int bi_lua_find(lua_State *L)
{
world_t *world = &sv.world;
edict_t *ent;
size_t i;
const char *s;
const char *match;
lua_getfield(L, 1, "entnum");
i = lua_tointegerx(L, -1, NULL)+1;
match = lua_tostring(L, 3);
for ( ; i<world->num_edicts ; i++)
{
ent = EDICT_NUM_PB(world->progs, i);
if (ED_ISFREE(ent))
continue;
lua_pushedict(L, ent);
lua_pushvalue(L, 2);
lua_gettable(L, -2);
s = lua_tostring(L, -1);
if (!s)
s = "";
if (!strcmp(s, match)) //should probably do a lua comparison, but nils suck
{
lua_pop(L, 2);
lua_pushedict(L, ent);
return 1;
}
lua_pop(L, 2);
}
lua_pushedict(L, EDICT_NUM_PB(world->progs, 0));
return 1;
}
static int bi_lua_multicast(lua_State *L)
{
int dest;
vec3_t org;
dest = lua_tointegerx(L, 1, NULL);
lua_readvector(L, 2, org);
NPP_Flush();
SV_Multicast (org, dest);
return 0;
}
extern sizebuf_t csqcmsgbuffer;
static int bi_lua_writechar(lua_State *L)
{
globalvars_t pr_globals;
pr_globals.param[0].f = (csqcmsgbuffer.maxsize?MSG_CSQC:MSG_MULTICAST);
pr_globals.param[1].f = lua_tonumberx(L, 1, NULL);
PF_WriteChar(&lua.progfuncs, &pr_globals);
return 0;
}
static int bi_lua_writebyte(lua_State *L)
{
globalvars_t pr_globals;
pr_globals.param[0].f = (csqcmsgbuffer.maxsize?MSG_CSQC:MSG_MULTICAST);
pr_globals.param[1].f = lua_tonumberx(L, 1, NULL);
PF_WriteByte(&lua.progfuncs, &pr_globals);
return 0;
}
static int bi_lua_writeshort(lua_State *L)
{
globalvars_t pr_globals;
pr_globals.param[0].f = (csqcmsgbuffer.maxsize?MSG_CSQC:MSG_MULTICAST);
pr_globals.param[1].f = lua_tonumberx(L, 1, NULL);
PF_WriteShort(&lua.progfuncs, &pr_globals);
return 0;
}
static int bi_lua_writelong(lua_State *L)
{
globalvars_t pr_globals;
pr_globals.param[0].f = (csqcmsgbuffer.maxsize?MSG_CSQC:MSG_MULTICAST);
pr_globals.param[1].f = lua_tonumberx(L, 1, NULL);
PF_WriteLong(&lua.progfuncs, &pr_globals);
return 0;
}
static int bi_lua_writeangle(lua_State *L)
{
globalvars_t pr_globals;
pr_globals.param[0].f = (csqcmsgbuffer.maxsize?MSG_CSQC:MSG_MULTICAST);
pr_globals.param[1].f = lua_tonumberx(L, 1, NULL);
PF_WriteAngle(&lua.progfuncs, &pr_globals);
return 0;
}
static int bi_lua_writecoord(lua_State *L)
{
globalvars_t pr_globals;
pr_globals.param[0].f = (csqcmsgbuffer.maxsize?MSG_CSQC:MSG_MULTICAST);
pr_globals.param[1].f = lua_tonumberx(L, 1, NULL);
PF_WriteCoord(&lua.progfuncs, &pr_globals);
return 0;
}
static int bi_lua_writestring(lua_State *L)
{
PF_WriteString_Internal((csqcmsgbuffer.maxsize?MSG_CSQC:MSG_MULTICAST),lua_tolstring(L, 1, NULL));
return 0;
}
static int bi_lua_writeentity(lua_State *L)
{
globalvars_t pr_globals;
lua_getfield(L, 1, "entnum");
pr_globals.param[0].f = (csqcmsgbuffer.maxsize?MSG_CSQC:MSG_MULTICAST);
pr_globals.param[1].i = lua_tointegerx(L, -1, NULL);
PF_WriteEntity(&lua.progfuncs, &pr_globals);
return 0;
}
static int bi_lua_WriteChar(lua_State *L)
{
globalvars_t pr_globals;
pr_globals.param[0].f = lua_tonumberx(L, 1, NULL);
pr_globals.param[1].f = lua_tonumberx(L, 2, NULL);
PF_WriteChar(&lua.progfuncs, &pr_globals);
return 0;
}
static int bi_lua_WriteByte(lua_State *L)
{
globalvars_t pr_globals;
pr_globals.param[0].f = lua_tonumberx(L, 1, NULL);
pr_globals.param[1].f = lua_tonumberx(L, 2, NULL);
PF_WriteByte(&lua.progfuncs, &pr_globals);
return 0;
}
static int bi_lua_WriteShort(lua_State *L)
{
globalvars_t pr_globals;
pr_globals.param[0].f = lua_tonumberx(L, 1, NULL);
pr_globals.param[1].f = lua_tonumberx(L, 2, NULL);
PF_WriteShort(&lua.progfuncs, &pr_globals);
return 0;
}
static int bi_lua_WriteLong(lua_State *L)
{
globalvars_t pr_globals;
pr_globals.param[0].f = lua_tonumberx(L, 1, NULL);
pr_globals.param[1].f = lua_tonumberx(L, 2, NULL);
PF_WriteLong(&lua.progfuncs, &pr_globals);
return 0;
}
static int bi_lua_WriteAngle(lua_State *L)
{
globalvars_t pr_globals;
pr_globals.param[0].f = lua_tonumberx(L, 1, NULL);
pr_globals.param[1].f = lua_tonumberx(L, 2, NULL);
PF_WriteAngle(&lua.progfuncs, &pr_globals);
return 0;
}
static int bi_lua_WriteCoord(lua_State *L)
{
globalvars_t pr_globals;
pr_globals.param[0].f = lua_tonumberx(L, 1, NULL);
pr_globals.param[1].f = lua_tonumberx(L, 2, NULL);
PF_WriteCoord(&lua.progfuncs, &pr_globals);
return 0;
}
static int bi_lua_WriteString(lua_State *L)
{
PF_WriteString_Internal(lua_tonumberx(L, 1, NULL),lua_tolstring(L, 2, NULL));
return 0;
}
static int bi_lua_WriteEntity(lua_State *L)
{
globalvars_t pr_globals;
lua_getfield(L, 2, "entnum");
pr_globals.param[0].f = lua_tonumberx(L, 1, NULL);
pr_globals.param[1].i = lua_tointegerx(L, -1, NULL);
PF_WriteEntity(&lua.progfuncs, &pr_globals);
return 0;
}
void QCBUILTIN PF_particle (pubprogfuncs_t *prinst, globalvars_t *pr_globals);
static int bi_lua_particle(lua_State *L)
{
globalvars_t pr_globals;
lua_readvector(L, 1, pr_globals.param[0].vec);
lua_readvector(L, 2, pr_globals.param[1].vec);
pr_globals.param[2].f = lua_tonumberx(L, 3, NULL);
pr_globals.param[3].f = lua_tonumberx(L, 4, NULL);
PF_particle(&lua.progfuncs, &pr_globals);
return 0;
}
static int bi_lua_ChangeYaw(lua_State *L)
{
PF_changeyaw(&lua.progfuncs, NULL);
return 0;
}
static int bi_lua_bitnot(lua_State *L)
{
lua_pushinteger(L, ~lua_tointegerx(L, 1, NULL));
return 1;
}
static int bi_lua_bitclear(lua_State *L)
{
lua_pushinteger(L, lua_tointegerx(L, 1, NULL)&~lua_tointegerx(L, 2, NULL));
return 1;
}
static int bi_lua_bitset(lua_State *L)
{
lua_pushnumber(L, lua_tointegerx(L, 1, NULL)|lua_tointegerx(L, 2, NULL));
return 1;
}
#define bi_lua_bitor bi_lua_bitset
static int bi_lua_bitand(lua_State *L)
{
lua_pushnumber(L, lua_tointegerx(L, 1, NULL)&lua_tointegerx(L, 2, NULL));
return 1;
}
static int bi_lua_bitxor(lua_State *L)
{
lua_pushnumber(L, lua_tointegerx(L, 1, NULL)^lua_tointegerx(L, 2, NULL));
return 1;
}
static int bi_lua_sin(lua_State *L)
{
lua_pushnumber(L, sin(lua_tonumberx(L, 1, NULL)));
return 1;
}
static int bi_lua_cos(lua_State *L)
{
lua_pushnumber(L, cos(lua_tonumberx(L, 1, NULL)));
return 1;
}
static int bi_lua_tan(lua_State *L)
{
lua_pushnumber(L, tan(lua_tonumberx(L, 1, NULL)));
return 1;
}
static int bi_lua_atan2(lua_State *L)
{
lua_pushnumber(L, atan2(lua_tonumberx(L, 1, NULL), lua_tonumberx(L, 2, NULL)));
return 1;
}
static int bi_lua_sqrt(lua_State *L)
{
lua_pushnumber(L, sin(lua_tonumberx(L, 1, NULL)));
return 1;
}
static int bi_lua_pow(lua_State *L)
{
lua_pushnumber(L, pow(lua_tonumberx(L, 1, NULL), lua_tonumberx(L, 2, NULL)));
return 1;
}
static int bi_lua_floor(lua_State *L)
{
lua_pushnumber(L, floor(lua_tonumberx(L, 1, NULL)));
return 1;
}
static int bi_lua_rint(lua_State *L)
{ //C rounds towards 0, so bias away from 0 by 0.5 and we'll get the right rounded value.
lua_Number f = lua_tonumberx(L, 1, NULL);
if (f < 0)
lua_pushinteger(L, f - 0.5);
else
lua_pushinteger(L, f + 0.5);
return 1;
}
static int bi_lua_ceil(lua_State *L)
{
lua_pushnumber(L, ceil(lua_tonumberx(L, 1, NULL)));
return 1;
}
static int bi_lua_fabs(lua_State *L)
{
lua_pushnumber(L, fabs(lua_tonumberx(L, 1, NULL)));
return 1;
}
static int bi_lua_acos(lua_State *L)
{
lua_pushnumber(L, acos(lua_tonumberx(L, 1, NULL)));
return 1;
}
static int bi_lua_asin(lua_State *L)
{
lua_pushnumber(L, asin(lua_tonumberx(L, 1, NULL)));
return 1;
}
static int bi_lua_atan(lua_State *L)
{
lua_pushnumber(L, atan(lua_tonumberx(L, 1, NULL)));
return 1;
}
typedef struct
{
lua_State *L;
int idx;
} luafsenum_t;
static int QDECL lua_file_enumerate(const char *fname, qofs_t fsize, time_t mtime, void *param, searchpathfuncs_t *spath)
{
luafsenum_t *e = param;
lua_pushinteger(e->L, e->idx++);
lua_pushfstring(e->L, "%s", fname);
lua_settable(e->L, -3);
return true;
}
static int bi_lua_getfilelist(lua_State *L)
{
luafsenum_t e;
const char *path = lua_tolstring(L, 1, NULL);
e.L = L;
e.idx = 1; //lua arrays are 1-based.
lua_newtable(L); //our return value.
COM_EnumerateFiles(path, lua_file_enumerate, &e);
return 1;
}
static int bi_lua_fclose(lua_State *L)
{
//both fclose and __gc.
//should we use a different function so that we can warn on dupe fcloses without bugging out on fclose+gc?
//meh, cba
vfsfile_t **f = lua_touserdata(L, 1);
if (f && *f != NULL)
{
VFS_CLOSE(*f);
*f = NULL;
}
return 0;
}
static int bi_lua_fopen(lua_State *L)
{
vfsfile_t *f;
const char *fname = lua_tolstring(L, 1, NULL);
qboolean read = true;
vfsfile_t **ud;
if (read)
f = FS_OpenVFS(fname, "rb", FS_GAME);
else
f = FS_OpenVFS(fname, "wb", FS_GAMEONLY);
if (!f)
{
lua_pushnil(L);
return 1;
}
ud = lua_newuserdata(L, sizeof(vfsfile_t*));
*ud = f;
lua_newtable(L);
lua_pushcclosure(L, bi_lua_fclose, 0);
lua_setfield(L, -2, "__gc");
lua_setmetatable(L, -2);
return 1;
}
static int bi_lua_fgets(lua_State *L)
{
vfsfile_t **f = lua_touserdata(L, 1);
char line[8192];
char *r = NULL;
if (f && *f)
r = VFS_GETS(*f, line, sizeof(line));
if (r)
lua_pushfstring(L, "%s", r);
else
lua_pushnil(L);
return 1;
}
static int bi_lua_fputs(lua_State *L)
{
vfsfile_t **f = lua_touserdata(L, 1);
size_t l;
const char *str = lua_tolstring(L, 2, &l);
if (f && *f != NULL)
VFS_WRITE(*f, str, l);
return 0;
}
static int bi_lua_loadlua(lua_State *L)
{
const char *fname = lua_tolstring(L, 1, NULL);
vfsfile_t *sourcefile = FS_OpenVFS(fname, "rb", FS_GAME);
if (!sourcefile)
{
Con_Printf("Error trying to load %s\n", fname);
lua_pushnil(L);
}
else if (0 != lua_load(L, my_lua_Reader, sourcefile, va("@%s", fname), "bt")) //load the file, embed it within a function and push it
{
Con_Printf("Error trying to parse %s: %s\n", fname, lua_tolstring(L, -1, NULL));
lua_pushnil(L);
}
VFS_CLOSE(sourcefile);
return 1;
}
static int bi_lua_require(lua_State *L)
{
const char *fname = lua_tolstring(L, 1, NULL);
vfsfile_t *sourcefile;
const char *usename;
if ((sourcefile = FS_OpenVFS(usename=fname, "rb", FS_GAME)))
;
else if ((sourcefile = FS_OpenVFS(usename=va("%s.lua", fname), "rb", FS_GAME)))
;
else
{
Con_Printf("Error trying to load %s\n", fname);
return 1;
}
if (0 != lua_load(lua.ctx, my_lua_Reader, sourcefile, va("@%s", usename), "bt")) //load the file, embed it within a function and push it
{
//failed - it pushed an error code instead
Con_Printf("Error trying to parse %s: %s\n", fname, lua_tolstring(lua.ctx, -1, NULL));
lua_pop(lua.ctx, 1);
}
else
{
if (lua_pcall(lua.ctx, 0, 0, 0) != 0) //now call it, so its actually run.
{
const char *s = lua_tolstring(lua.ctx, -1, NULL);
Con_Printf(CON_WARNING "%s\n", s);
lua_pop(lua.ctx, 1);
}
}
VFS_CLOSE(sourcefile);
return 0;
}
static int bi_lua_vec3(lua_State *L)
{
float x = lua_tonumberx(L, 1, NULL);
float y = lua_tonumberx(L, 2, NULL);
float z = lua_tonumberx(L, 3, NULL);
lua_pushvector(L, x, y, z);
return 1;
}
static int bi_lua_field(lua_State *L)
{
const char *fname = lua_tostring(L, 1);
const char *ftype = lua_tostring(L, 2);
int t;
size_t u;
if (!strcmp(ftype, "string"))
t = ev_string;
else if (!strcmp(ftype, "float"))
t = ev_float;
else if (!strcmp(ftype, "integer"))
t = ev_integer;
else if (!strcmp(ftype, "vector"))
t = ev_vector;
else if (!strcmp(ftype, "function"))
t = ev_function;
else if (!strcmp(ftype, "entity"))
t = ev_entity;
else
{
Con_Printf("Unknown field type\n");
return 0;
}
if (lua.numflds == countof(lua.entflds))
{
Con_Printf("Too many ent fields\n");
return 0;
}
//no dupes please.
for (u = 0; u < lua.numflds; u++)
{
if (!strcmp(lua.entflds[u].name, fname))
return 0;
}
lua.entflds[lua.numflds].offset = -1; //if we don't know about it yet, then its an artificial field, and present just so that self.whatever returns something other than nil.
lua.entflds[lua.numflds].name = Lua_AddString(NULL, fname, 0, false);
lua.entflds[lua.numflds].type = t;
Hash_AddInsensitive(&lua.entityfields, lua.entflds[lua.numflds].name, &lua.entflds[lua.numflds], &lua.entflds[lua.numflds].buck);
lua.numflds++;
return 0;
}
static int bi_lua_type(lua_State *L)
{
const char *tn;
int t = lua_type(L, 1);
// luaL_argcheck(L, t != LUA_TNONE, 1, "value expected");
tn = lua_typename(L, t);
lua_pushstring(L, tn);
return 1;
}
static int bi_lua_logfrag(lua_State *L)
{
//stub... noone cares
return 0;
}
/*static int bi_lua_entities(lua_State *L)
{
//stub... noone cares
return 0;
}*/
#ifdef LIBLUA_STATIC
static int pairsmeta (lua_State *L, const char *method, int iszero,
lua_CFunction iter) {
luaL_checkany(L, 1);
if (luaL_getmetafield(L, 1, method) == LUA_TNIL) { /* no metamethod? */
lua_pushcfunction(L, iter); /* will return generator, */
lua_pushvalue(L, 1); /* state, */
if (iszero) lua_pushinteger(L, 0); /* and initial value */
else lua_pushnil(L);
}
else {
lua_pushvalue(L, 1); /* argument 'self' to metamethod */
lua_call(L, 1, 3); /* get 3 values from metamethod */
}
return 3;
}
static int luaB_next (lua_State *L) {
luaL_checktype(L, 1, LUA_TTABLE);
lua_settop(L, 2); /* create a 2nd argument if there isn't one */
if (lua_next(L, 1))
return 2;
else {
lua_pushnil(L);
return 1;
}
}
static int bi_lua_pairs (lua_State *L) {
return pairsmeta(L, "__pairs", 0, luaB_next);
}
#endif
static int bi_lua_objerror (lua_State *L)
{
Con_Printf("\n");
lua_pushedict(L, lua.edicttable[lua.globals.self]);
lua_pushnil(L);
while (lua_next(L, -2))
{ //FIXME: this doesn't find vector fields
if (lua_type(L, -2) == LUA_TSTRING)
Con_Printf("%21s:", lua_tostring(L, -2));
else if (lua_type(L, -2) == LUA_TLIGHTUSERDATA)
{
int i;
const void *ud = lua_topointer(L, -2);
for (i = 0; i < lua.numflds; i++)
if (lua.entflds[i].offset == (qintptr_t)ud)
break;
if (i == lua.numflds)
Con_Printf("%21s:", lua_typename(L, lua_type(L, -2)));
else
Con_Printf("%21s:", lua.entflds[i].name);
}
else
Con_Printf("%21s:", lua_typename(L, lua_type(L, -2)));
if (lua_type(L, -1) == LUA_TSTRING)
Con_Printf(" \"%s\"\n", lua_tostring(L, -1));
else if (lua_type(L, -1) == LUA_TNUMBER)
Con_Printf(" \"%g\"\n", lua_tonumber(L, -1));
#ifdef LIBLUA_STATIC
else if (lua_type(L, -1) == LUA_TFUNCTION)
{
lua_Debug ar = {0};
lua_pushvalue(L, -1);
lua_getinfo(L, ">nS", &ar);
Con_Printf(" %s %s:%i\n", ar.name, ar.source, ar.linedefined);
}
#endif
else
Con_Printf(" %s\n", lua_typename(L, lua_type(L, -1)));
lua_pop(L, 1);
}
lua_pop(L, 1);
Con_Printf("objerror: %s\n", lua_tostring(L, 1));
return 0;
}
static int bi_lua_error (lua_State *L)
{
SV_Error("Error: %s\n", lua_tostring(L, 1));
return 0;
}
static int bi_lua_qtrue (lua_State *L)
{
//the truth is what you make it...
const char *s;
switch(lua_type(L, 1))
{
case LUA_TSTRING:
s = lua_tostring(L, 1);
lua_pushboolean(L, *s != 0); //empty string is considered false. WARNING: vanilla QC considered empty-but-not-null strings to be true
break;
default:
// case LUA_TUSERDATA:
// case LUA_TTHREAD:
// case LUA_TLIGHTUSERDATA:
// case LUA_TNONE:
// case LUA_TNIL:
lua_pushboolean(L, false);
break;
case LUA_TBOOLEAN:
lua_pushvalue(L, 1);
break;
case LUA_TNUMBER:
lua_pushboolean(L, lua_tonumber(L, 1) != 0);
break;
case LUA_TFUNCTION: //functions are always considered true. otherwise they're nil and not functions.
lua_pushboolean(L, true);
break;
case LUA_TTABLE:
//might be a vector or an entity.
lua_getfield(L, 1, "entnum");
if (!lua_isnil(L, -1))
{ //okay, so its a table with a valid entnum field. must be an entity.
lua_pushboolean(L, 0!=lua_tointegerx(L, -1, NULL)); //true if its not 0/world
}
else
{ //assume that its a vector.
//note that this means that any table without x|y|z fields will be considered false.
vec3_t v;
lua_readvector(L, 1, v);
lua_pushboolean(L, v[0] || v[1] || v[2]);
}
break;
}
return 1;
}
#define registerfunc(n) lua_pushcclosure(L, bi_lua_##n, 0); lua_setglobal(L, #n);
#define registerfuncn(n) registerfunc(n) //new crap
#define registerfuncd(n) registerfunc(n) //deprecated crap
static void my_lua_registerbuiltins(lua_State *L)
{
lua_atpanic (L, my_lua_panic);
lua_pushglobaltable(L);
lua_setfield(L, -1, "_G");
//standard lua library replacement
//this avoids the risk of including any way to access os.execute etc, or other file access.
registerfuncn(tostring); //standardish
registerfuncn(tonumber); //standardish
registerfuncn(type); //standardish
registerfuncn(print); //'standard' lua print, except prints to console. WARNING: this adds an implicit \n. Use conprint for the quake-style version.
registerfuncn(require); //'standard'ish, except uses quake's filesystem instead of reading random system paths.
#ifdef LIBLUA_STATIC
registerfuncn(pairs);
#endif
lua_pushnil(L); lua_setglobal(L, "dofile"); //violates our sandbox
lua_pushnil(L); lua_setglobal(L, "loadfile"); //violates our sandbox
lua_newtable(L);
lua_pushcclosure(L, bi_lua_fabs, 0); lua_setfield(L, -2, "abs");
lua_pushcclosure(L, bi_lua_rint, 0); lua_setfield(L, -2, "rint");
lua_pushcclosure(L, bi_lua_ceil, 0); lua_setfield(L, -2, "ceil");
lua_pushcclosure(L, bi_lua_floor, 0); lua_setfield(L, -2, "floor");
lua_pushcclosure(L, bi_lua_sin, 0); lua_setfield(L, -2, "sin");
lua_pushcclosure(L, bi_lua_cos, 0); lua_setfield(L, -2, "cos");
lua_pushcclosure(L, bi_lua_tan, 0); lua_setfield(L, -2, "tan");
lua_pushcclosure(L, bi_lua_asin, 0); lua_setfield(L, -2, "asin");
lua_pushcclosure(L, bi_lua_acos, 0); lua_setfield(L, -2, "acos");
lua_pushcclosure(L, bi_lua_atan, 0); lua_setfield(L, -2, "atan");
lua_pushcclosure(L, bi_lua_atan2, 0); lua_setfield(L, -2, "atan2");
lua_pushcclosure(L, bi_lua_sqrt, 0); lua_setfield(L, -2, "sqrt");
lua_pushcclosure(L, bi_lua_pow, 0); lua_setfield(L, -2, "pow");
lua_pushnumber (L, M_PI); lua_setfield(L, -2, "pi");
lua_setglobal(L, "math");
// registerfuncd(entities);
registerfuncd(loadlua); //should probably use 'require' instead.
registerfuncn(vec3);
registerfuncn(field);
#undef qtrue
registerfuncn(qtrue); //for auto-converted code that tests for truth amongst a myriad of different custom types...
registerfunc(setmodel);
registerfunc(precache_model);
registerfuncd(precache_model2); //pointless alternative name
registerfunc(precache_sound);
registerfuncd(precache_sound2); //pointless alternative name
registerfuncd(precache_file); //empty pointless function...
registerfunc(lightstyle);
registerfunc(spawn);
registerfunc(remove);
registerfunc(nextent);
registerfunc(nextclient);
registerfunc(makestatic);
registerfunc(setorigin);
registerfunc(setsize);
registerfuncn(conprint); //dprint, without the developer
registerfunc(bprint_qw);
registerfunc(sprint_qw);
if (progstype == PROG_QW)
{
lua_pushcclosure(L, bi_lua_conprint, 0); lua_setglobal(L, "dprint"); //ignores developer
lua_pushcclosure(L, bi_lua_bprint_qw, 0); lua_setglobal(L, "bprint"); //an extra level arg
lua_pushcclosure(L, bi_lua_sprint_qw, 0); lua_setglobal(L, "sprint"); //an extra level arg
}
else
{
lua_pushcclosure(L, bi_lua_dprint, 0); lua_setglobal(L, "dprint"); //responds to developer
lua_pushcclosure(L, bi_lua_bprint_nq, 0); lua_setglobal(L, "bprint"); //no level arg
lua_pushcclosure(L, bi_lua_sprint_nq, 0); lua_setglobal(L, "sprint"); //no level arg
}
registerfunc(centerprint);
registerfunc(ambientsound);
registerfunc(sound);
registerfunc(random);
registerfunc(checkclient);
registerfunc(stuffcmd);
registerfunc(localcmd);
registerfuncd(cvar); //gets a float value, never a string.
registerfuncn(cvar_get);
registerfunc(cvar_set);
registerfuncd(findradius); //qc legacy compat. should probably warn when its called or sommit.
registerfuncn(findradiuschain); //renamed from qc. because qc's behaviour is annoying enough that we want to discourage its use.
registerfuncn(findradiustable); //findradius, but returns an array/table instead.
registerfunc(objerror);
registerfunc(error);
// registerfuncd(break); //won't implement
registerfunc(traceline);
registerfuncn(tracebox);
registerfunc(walkmove);
registerfunc(movetogoal);
registerfunc(droptofloor);
registerfunc(checkbottom);
registerfunc(pointcontents);
registerfuncd(ChangeYaw);
registerfunc(setspawnparms);
registerfunc(changelevel);
registerfunc(logfrag);
registerfuncd(infokey);
registerfuncn(getinfokey);
registerfuncn(setinfokey);
registerfunc(multicast);
registerfuncn(writebyte);
registerfuncn(writechar);
registerfuncn(writeshort);
registerfuncn(writelong);
registerfuncn(writeangle);
registerfuncn(writecoord);
registerfuncn(writestring);
registerfuncn(writeentity);
registerfuncd(WriteByte);
registerfuncd(WriteChar);
registerfuncd(WriteShort);
registerfuncd(WriteLong);
registerfuncd(WriteAngle);
registerfuncd(WriteCoord);
registerfuncd(WriteString);
registerfuncd(WriteEntity);
registerfuncd(particle);
registerfuncn(bitnot);
registerfuncn(bitclear);
registerfuncn(bitset);
registerfuncn(bitor);
registerfuncn(bitand);
registerfuncn(bitxor);
registerfuncn(sin);
registerfuncn(cos);
registerfuncn(acos);
registerfuncn(asin);
registerfuncn(atan);
registerfuncn(atan2);
registerfuncn(sqrt);
registerfuncn(pow);
registerfunc(floor);
registerfunc(ceil);
registerfunc(rint);
registerfunc(fabs);
registerfuncn(fopen);
registerfuncn(fclose);
registerfuncn(fgets);
registerfuncn(fputs);
registerfuncn(getfilelist);
registerfuncd(find);
//registerfunc(strftime);
registerfunc(tokenize);
registerfunc(makevectors);
registerfunc(normalize);
registerfunc(vectoangles);
registerfunc(vectoyaw);
registerfuncd(aim); //original implementation nudges v_forward up or down so that keyboard players can still play.
registerfunc(vtos);
registerfunc(ftos);
registerfunc(stof);
//registerfunc(PRECACHE_VWEP_MODEL);
//registerfunc(SETPAUSE);
//set a metatable on the globals table
//this means that we can just directly use self.foo instead of blob.self.foo
lua_pushglobaltable(L);
if (luaL_newmetatable(L, "globals"))
{
lua_pushcclosure(L, my_lua_global_set, 0); //for the luls.
lua_setfield (L, -2, "__newindex");
lua_pushcclosure(L, my_lua_global_get, 0); //for the luls.
lua_setfield (L, -2, "__index");
}
lua_setmetatable(L, -2);
lua_pop(L, 1);
if (luaL_newmetatable(L, "vec3_t"))
{
// lua_pushcclosure(L, my_lua_vec3_set, 0); //known writes should change the internal info so the engine can use the information.
// lua_setfield (L, -2, "__newindex");
// lua_pushcclosure(L, my_lua_vec3_get, 0); //we need to de-translate the engine's fields too.
// lua_setfield (L, -2, "__index");
lua_pushcclosure(L, my_lua_vec3_tostring, 0); //cos its prettier than seeing 'table 0x5425729' all over the place
lua_setfield (L, -2, "__tostring");
lua_pushcclosure(L, my_lua_vec3_eq, 0); //for comparisons, you know?
lua_setfield (L, -2, "__eq");
lua_pushcclosure(L, my_lua_vec3_add, 0); //for comparisons, you know?
lua_setfield (L, -2, "__add");
lua_pushcclosure(L, my_lua_vec3_sub, 0); //for comparisons, you know?
lua_setfield (L, -2, "__sub");
lua_pushcclosure(L, my_lua_vec3_mul, 0); //for comparisons, you know?
lua_setfield (L, -2, "__mul");
lua_pushcclosure(L, my_lua_vec3_len, 0); //for comparisons, you know?
lua_setfield (L, -2, "__len");
lua_pop(L, 1);
}
}
static edict_t *QDECL Lua_EdictNum(pubprogfuncs_t *pf, unsigned int num)
{
int newcount;
if (num >= lua.maxedicts)
{
newcount = num + 64;
lua.edicttable = realloc(lua.edicttable, newcount*sizeof(*lua.edicttable));
while(lua.maxedicts < newcount)
lua.edicttable[lua.maxedicts++] = NULL;
pf->edicttable_length = lua.maxedicts;
pf->edicttable = lua.edicttable;
}
return lua.edicttable[num];
}
static unsigned int QDECL Lua_NumForEdict(pubprogfuncs_t *pf, edict_t *e)
{
return e->entnum;
}
static int QDECL Lua_EdictToProgs(pubprogfuncs_t *pf, edict_t *e)
{
return e->entnum;
}
static edict_t *QDECL Lua_ProgsToEdict(pubprogfuncs_t *pf, int num)
{
return Lua_EdictNum(pf, num);
}
void Lua_EntClear (pubprogfuncs_t *pf, edict_t *e)
{
int num = e->entnum;
memset (e->v, 0, sv.world.edict_size);
e->ereftype = ER_ENTITY;
e->entnum = num;
}
edict_t *Lua_CreateEdict(unsigned int num)
{
edict_t *e;
e = lua.edicttable[num] = Z_Malloc(sizeof(edict_t) + sv.world.edict_size);
e->v = (stdentvars_t*)(e+1);
#ifdef VM_Q1
e->xv = (extentvars_t*)(e->v + 1);
#endif
e->entnum = num;
return e;
}
static void QDECL Lua_EntRemove(pubprogfuncs_t *pf, edict_t *e, qboolean instant)
{
lua_State *L = lua.ctx;
if (!ED_CanFree(e))
return;
e->ereftype = ER_FREE;
e->freetime = (instant?0:sv.time); //can respawn instantly when asked.
//clear out the lua version of the entity, so that it can be garbage collected.
//should probably clear out its entnum field too, just in case.
lua_pushlightuserdata(L, e);
lua_pushnil(L);
lua_settable(L, LUA_REGISTRYINDEX);
}
static edict_t *Lua_DoRespawn(pubprogfuncs_t *pf, edict_t *e, int num)
{
lua_State *L = lua.ctx;
if (!e)
e = Lua_CreateEdict(num);
else
Lua_EntClear (pf, e);
ED_Spawned((struct edict_s *) e, false);
//create a new table for the entity, give it a suitable metatable, and store it into the registry (avoiding GC and allowing us to actually hold on to it).
lua_pushlightuserdata(L, lua.edicttable[num]);
lua_newtable(L);
if (luaL_newmetatable(L, "entity"))
{
lua_pushcclosure(L, my_lua_entity_set, 0); //known writes should change the internal info so the engine can use the information.
lua_setfield (L, -2, "__newindex");
lua_pushcclosure(L, my_lua_entity_get, 0); //we need to de-translate the engine's fields too.
lua_setfield (L, -2, "__index");
lua_pushcclosure(L, my_lua_entity_tostring, 0); //cos its prettier than seeing 'table 0x5425729' all over the place
lua_setfield (L, -2, "__tostring");
lua_pushcclosure(L, my_lua_entity_eq, 0); //for comparisons, you know?
lua_setfield (L, -2, "__eq");
}
lua_setmetatable(L, -2);
lua_pushinteger(L, num);
lua_setfield (L, -2, "entnum"); //so we know which entity it is.
lua_settable(L, LUA_REGISTRYINDEX);
return e;
}
static edict_t *QDECL Lua_EntAlloc(pubprogfuncs_t *pf, pbool isobject, size_t extrasize)
{
int i;
edict_t *e;
for ( i=0 ; i<sv.world.num_edicts ; i++)
{
e = (edict_t*)EDICT_NUM_PB(pf, i);
// the first couple seconds of server time can involve a lot of
// freeing and allocating, so relax the replacement policy
if (!e || (ED_ISFREE(e) && ( e->freetime < 2 || sv.time - e->freetime > 0.5 ) ))
{
e = Lua_DoRespawn(pf, e, i);
return (struct edict_s *)e;
}
}
if (i >= sv.world.max_edicts-1) //try again, but use timed out ents.
{
for ( i=0 ; i<sv.world.num_edicts ; i++)
{
e = (edict_t*)EDICT_NUM_PB(pf, i);
// the first couple seconds of server time can involve a lot of
// freeing and allocating, so relax the replacement policy
if (!e || ED_ISFREE(e))
{
e = Lua_DoRespawn(pf, e, i);
return (struct edict_s *)e;
}
}
if (i >= sv.world.max_edicts-1)
{
Sys_Error ("ED_Alloc: no free edicts");
}
}
sv.world.num_edicts++;
e = Lua_EdictNum(pf, i);
e = Lua_DoRespawn(pf, e, i);
return (struct edict_s *)e;
}
/*static int QDECL Lua_LoadEnts(pubprogfuncs_t *pf, const char *mapstring, void *ctx, void (PDECL *callback) (pubprogfuncs_t *progfuncs, struct edict_s *ed, void *ctx, const char *entstart, const char *entend))
{
lua_State *L = lua.ctx;
int i = 0;
lua_getglobal(L, "LoadEnts");
lua_newtable(L);
while(NULL != (mapstring = COM_Parse(mapstring)))
{
lua_pushinteger(L, i++);
lua_pushstring(L, com_token);
lua_settable(L, -3);
}
// lua_pushinteger(L, spawnflags);
if (lua_pcall(L, 2, 0, 0) != 0)
{
const char *s = lua_tolstring(L, -1, NULL);
Con_Printf(CON_WARNING "%s\n", s);
lua_pop(L, 1);
}
return sv.world.edict_size;
}*/
static const char *Lua_ParseEdict (pubprogfuncs_t *progfuncs, const char *data, struct edict_s *ent)
{
lua_State *L = lua.ctx;
// fdef_t *key;
pbool init;
char keyname[256];
int n;
int nest = 1;
char token[8192];
luafld_t *fld;
// eval_t *val;
init = false;
// go through all the dictionary pairs
while (1)
{
// parse key
data = COM_ParseOut(data, token, sizeof(token));
if (token[0] == '}')
{
if (--nest)
continue;
break;
}
if (token[0] == '{' && !token[1])
nest++;
if (!data)
{
Con_Printf ("Lua_ParseEdict: EOF without closing brace\n");
return NULL;
}
if (nest > 1)
continue;
strncpy (keyname, token, sizeof(keyname)-1);
keyname[sizeof(keyname)-1] = 0;
// another hack to fix heynames with trailing spaces
n = strlen(keyname);
while (n && keyname[n-1] == ' ')
{
keyname[n-1] = 0;
n--;
}
// parse value
data = COM_ParseOut(data, token, sizeof(token));
if (!data)
{
Con_Printf ("Lua_ParseEdict: EOF without closing brace\n");
return NULL;
}
if (token[0] == '}')
{
Con_Printf ("Lua_ParseEdict: closing brace without data\n");
return NULL;
}
init = true;
// keynames with a leading underscore are used for utility comments,
// and are immediately discarded by quake
if (keyname[0] == '_')
continue;
if (!strcmp(keyname, "angle")) //Quake anglehack - we've got to leave it in cos it doesn't work for quake otherwise, and this is a QuakeC lib!
{
Q_snprintfz (keyname, sizeof(keyname), "angles"); //change it from yaw to 3d angle
Q_snprintfz (token, sizeof(token), "0 %f 0", atof(token)); //change it from yaw to 3d angle
goto cont;
}
/*
key = ED_FindField (progfuncs, keyname);
if (!key)
{
if (!strcmp(keyname, "light")) //Quake lighthack - allows a field name and a classname to go by the same thing in the level editor
if ((key = ED_FindField (progfuncs, "light_lev")))
goto cont;
if (externs->badfield && externs->badfield(&progfuncs->funcs, (struct edict_s*)ent, keyname, qcc_token))
continue;
Con_DPrintf ("'%s' is not a field\n", keyname);
continue;
}
*/
cont:
fld = Hash_GetInsensitive(&lua.entityfields, keyname);
if (fld && fld->type == ev_float)
lua_pushnumber(L, atof(token));
else if (fld && fld->type == ev_integer)
lua_pushinteger(L, atoi(token));
else if (fld && fld->type == ev_vector)
{
char *e;
float x,y,z;
x = strtod(token, &e);
if (*e == ' ')
e++;
y = strtod(e, &e);
if (*e == ' ')
e++;
z = strtod(e, &e);
if (*e == ' ')
e++;
lua_pushvector(L, x, y, z);
}
else if (fld && fld->type == ev_function)
lua_getglobal(L, token); //functions are nameless, except for how they're invoked. so this is only for evil mods...
else if (fld && fld->type == ev_entity)
{
int num = atoi(token);
lua_pushedict(L, EDICT_NUM_UB((&lua.progfuncs), num));
}
else
lua_pushstring(L, token);
lua_setfield(L, -2, keyname);
/*if (!ED_ParseEpair (progfuncs, (char*)ent->fields - progfuncs->funcs.stringtable, key->ofs, key->type, qcc_token))
{
continue;
// Sys_Error ("ED_ParseEdict: parse error on entities");
}*/
}
if (!init)
ent->ereftype = ER_FREE;
return data;
}
static int QDECL Lua_LoadEnts(pubprogfuncs_t *pf, const char *mapstring, void *ctx,
void (PDECL *memoryreset) (pubprogfuncs_t *progfuncs, void *ctx),
void (PDECL *entspawned) (pubprogfuncs_t *progfuncs, struct edict_s *ed, void *ctx, const char *entstart, const char *entend),
pbool(PDECL *extendedterm)(pubprogfuncs_t *progfuncs, void *ctx, const char **extline)
) //restore the entire progs state (or just add some more ents) (returns edicts ize)
{
lua_State *L = lua.ctx;
struct edict_s *ed = NULL;
const char *datastart = mapstring;
lua_pushglobaltable(L);
while (1)
{
datastart = mapstring;
if (extendedterm)
{
//skip simple leading whitespace
while (*mapstring == ' ' || *mapstring == '\t' || *mapstring == '\r' || *mapstring == '\n')
mapstring++;
if (mapstring[0] == '/' && mapstring[1] == '*') //we are not reading lua here, so C-style comments are the proper form (otherwise ignored by COM_Parse, giving extensibility).
{ //looks like we have a hidden extension.
mapstring+=2;
for(;;)
{
//skip to end of line
if (!*mapstring)
break; //unexpected EOF
else if (mapstring[0] == '*' && mapstring[1] == '/')
{ //end of comment
mapstring+=2;
break;
}
else if (*mapstring != '\n')
{
mapstring++;
continue;
}
mapstring++; //skip past the \n
while (*mapstring == ' ' || *mapstring == '\t')
mapstring++; //skip leading indentation
if (mapstring[0] == '*' && mapstring[1] == '/')
{ //end of comment
mapstring+=2;
break;
}
else if (*mapstring == '/')
continue; //embedded comment. ignore the line. not going to do nested comments, because those are not normally valid anyway, just C++-style inside C-style.
else if (extendedterm(pf, ctx, &mapstring))
; //found a term we recognised
else
; //unknown line, but this is a comment so whatever
}
continue;
}
}
mapstring = COM_Parse(mapstring);
if (!strcmp(com_token, "{"))
{
if (!ed) //first entity
ed = EDICT_NUM_PB(pf, 0);
else
ed = ED_Alloc(pf, false, 0);
ed->ereftype = ER_ENTITY;
if (pf->parms->entspawn)
pf->parms->entspawn(ed, true);
lua_pushedict(L, ed);
mapstring = Lua_ParseEdict(pf, mapstring, ed);
if (1)
{ //we can't call the callback, as it would be unable to represent the function references.
int spawnflags, killonspawnflags = *(int*)ctx;//lame. really lame
lua_getfield(L, -1, "spawnflags"); //push -1["classname"]...
spawnflags = lua_tointeger(L, -1);
lua_pop(L, 1);
if (spawnflags & killonspawnflags)
lua.progfuncs.EntFree(&lua.progfuncs, ed, true);
else
{
lua_getfield(L, -1, "classname"); //push -1["classname"]...
//-3:globaltable, -2:enttable, -1:classname string
lua_gettable(L, -3); //pop the classname and look it up inside the global table (to find the function in question)
lua.globals.self = ed->entnum;
if (lua_pcall(L, 0, 0, 0) != 0)
{
const char *s = lua_tolstring(L, -1, NULL);
lua_getfield(L, -2, "classname"); //push -1["classname"]...
Con_Printf(CON_WARNING "spawn func %s: %s\n", lua_tolstring(L, -1, NULL), s);
lua_pop(L, 2);
}
}
}
else
{
lua_pop(L, 1);
entspawned(pf, ed, ctx, datastart, mapstring);
}
lua_pop(L, 1); //pop ent table
}
else
break; //unexpected token...
}
lua_pop(L, 1);
return sv.world.edict_size;
}
static eval_t *QDECL Lua_GetEdictFieldValue(pubprogfuncs_t *pf, edict_t *e, const char *fieldname, etype_t type, evalc_t *cache)
{
eval_t *val;
luafld_t *fld;
fld = Hash_GetInsensitive(&lua.entityfields, fieldname);
if (fld)
{
val = (eval_t*)((char*)e->v + fld->offset);
return val;
}
return NULL;
}
static eval_t *QDECL Lua_FindGlobal (pubprogfuncs_t *prinst, const char *name, progsnum_t num, etype_t *type)
{
eval_t *val;
luafld_t *fld;
fld = Hash_GetInsensitive(&lua.globalfields, name);
if (fld)
{
val = (eval_t*)((char*)&lua.globals + fld->offset);
return val;
}
Con_Printf("Lua_FindGlobal: %s\n", name);
return NULL;
}
static func_t QDECL Lua_FindFunction (pubprogfuncs_t *prinst, const char *name, progsnum_t num)
{
eval_t *val;
luafld_t *fld;
fld = Hash_GetInsensitive(&lua.globalfields, name);
if (fld)
{
val = (eval_t*)((char*)&lua.globals + fld->offset);
return val->function;
}
Con_Printf("Lua_FindFunction: %s\n", name);
return 0;
}
static globalvars_t *QDECL Lua_Globals(pubprogfuncs_t *prinst, int prnum)
{
// Con_Printf("Lua_Globals: called\n");
return NULL;
}
char *QDECL Lua_AddString(pubprogfuncs_t *prinst, const char *val, int minlength, pbool demarkup)
{
char *ptr;
int len = strlen(val)+1;
if (len < minlength)
len = minlength;
ptr = Z_TagMalloc(len, LUA_MALLOC_TAG);
strcpy(ptr, val);
return ptr;
}
static string_t QDECL Lua_StringToProgs(pubprogfuncs_t *prinst, const char *str)
{
Con_Printf("Lua_StringToProgs called instead of Lua_SetStringField\n");
return 0;
}
//passing NULL for ed means its setting a global.
static void QDECL Lua_SetStringField(pubprogfuncs_t *prinst, edict_t *ed, string_t *fld, const char *str, pbool str_is_static)
{
lua_State *L = lua.ctx;
string_t val;
string_t base;
if (ed)
{
base = (ed->entnum+1)<<10;
val = (char*)fld-(char*)ed->v;
lua_pushedict(lua.ctx, lua.edicttable[ed->entnum]);
}
else
{
base = 0;
val = (char*)fld-(char*)&lua.globals;
//push the globals list
lua_pushglobaltable(L);
}
*fld = base | val; //set the engine's value
//set the stuff so that lua can read it properly.
lua_pushlightuserdata(L, (void *)(qintptr_t)val);
lua_pushstring(L, str);
lua_rawset(L, -3);
//and pop the table
lua_pop(L, 1);
}
static const char *ASMCALL QDECL Lua_StringToNative(pubprogfuncs_t *prinst, string_t str)
{
const char *ret = "";
unsigned int entnum = str >> 10;
if (str)
{
str &= 1023;
if (!entnum)
{
//okay, its the global table.
lua_pushglobaltable(lua.ctx);
}
else
{
entnum-=1;
if (entnum >= lua.maxedicts)
return ret; //erk...
//get the entity's table
lua_pushlightuserdata(lua.ctx, lua.edicttable[entnum]);
lua_gettable(lua.ctx, LUA_REGISTRYINDEX);
}
//read the function from the table
lua_pushlightuserdata(lua.ctx, (void *)(qintptr_t)str);
lua_rawget(lua.ctx, -2);
ret = lua_tolstring(lua.ctx, -1, NULL);
lua_pop(lua.ctx, 2); //pop the table+string.
//popping the string is 'safe' on the understanding that the string reference is still held by its containing table, so don't store the string anywhere.
}
return ret;
}
static void Lua_Event_Touch(world_t *w, wedict_t *s, wedict_t *o, trace_t *trace)
{
int oself = pr_global_struct->self;
int oother = pr_global_struct->other;
pr_global_struct->self = EDICT_TO_PROG(w->progs, s);
pr_global_struct->other = EDICT_TO_PROG(w->progs, o);
pr_global_struct->time = w->physicstime;
#if 1
PR_ExecuteProgram (w->progs, s->v->touch);
#else
lua_pushedict(lua.ctx, s);
//lua_pushliteral(lua.ctx, "touch");
lua_pushlightuserdata(lua.ctx, (void*)((char*)&s->v->touch-(char*)s->v));
lua_rawget(lua.ctx, -2);
lua_replace(lua.ctx, -2);
if (lua_pcall(lua.ctx, 0, 0, 0) != 0)
{
const char *e = lua_tolstring(lua.ctx, -1, NULL);
lua_pushedict(lua.ctx, (struct edict_s*)s);
lua_getfield(lua.ctx, -1, "classname");
Con_Printf(CON_WARNING "%s touch: %s\n", lua_tostring(lua.ctx, -1), e);
lua_pop(lua.ctx, 3); //error, enttable, classname
}
#endif
pr_global_struct->self = oself;
pr_global_struct->other = oother;
}
static void Lua_Event_Think(world_t *w, wedict_t *s)
{
pr_global_struct->self = EDICT_TO_PROG(w->progs, s);
pr_global_struct->other = EDICT_TO_PROG(w->progs, w->edicts);
#if 0
PR_ExecuteProgram (w->progs, s->v->think);
#else
lua_pushedict(lua.ctx, (struct edict_s*)s);
// lua_pushliteral(lua.ctx, "think");
lua_pushlightuserdata(lua.ctx, (void*)((char*)&s->v->think-(char*)s->v));
lua_rawget(lua.ctx, -2);
lua_replace(lua.ctx, -2);
if (lua_pcall(lua.ctx, 0, 0, 0) != 0)
{
const char *e = lua_tolstring(lua.ctx, -1, NULL);
lua_pushedict(lua.ctx, (struct edict_s*)s);
lua_getfield(lua.ctx, -1, "classname");
Con_Printf(CON_WARNING "%s think: %s\n", lua_tostring(lua.ctx, -1), e);
lua_pop(lua.ctx, 3); //error, enttable, classname
}
#endif
}
static qboolean Lua_Event_ContentsTransition(world_t *w, wedict_t *ent, int oldwatertype, int newwatertype)
{
return false; //always do legacy behaviour, because I cba implementing anything else.
}
static void Lua_SetupGlobals(world_t *world)
{
int flds;
int bucks;
comentvars_t *v = NULL;
extentvars_t *xv = (extentvars_t*)(v+1);
memset(&lua.globals, 0, sizeof(lua.globals));
lua.globals.physics_mode = 2;
lua.globals.dimension_send = 255;
lua.globals.dimension_default = 255;
lua.globals.global_gravitydir[2] = -1;
flds = 0;
bucks = 64;
Hash_InitTable(&lua.globalfields, bucks, Z_Malloc(Hash_BytesForBuckets(bucks)));
//WARNING: global is not remapped yet...
//This code is written evilly, but works well enough
#define doglobal(n, t) \
pr_global_ptrs->n = &lua.globals.n; \
lua.globflds[flds].offset = (char*)&lua.globals.n - (char*)&lua.globals; \
lua.globflds[flds].name = #n; \
lua.globflds[flds].type = t; \
Hash_AddInsensitive(&lua.globalfields, lua.globflds[flds].name, &lua.globflds[flds], &lua.globflds[flds].buck); \
flds++;
#define doglobal_v(o, f, t) \
lua.globflds[flds].offset = (char*)&lua.globals.o - (char*)&lua.globals; \
lua.globflds[flds].name = #f; \
lua.globflds[flds].type = t; \
Hash_AddInsensitive(&lua.globalfields, lua.globflds[flds].name, &lua.globflds[flds], &lua.globflds[flds].buck); \
flds++;
#define globalentity(required, name) doglobal(name, ev_entity)
#define globalint(required, name) doglobal(name, ev_integer)
#define globalfloat(required, name) doglobal(name, ev_float)
#define globalstring(required, name) doglobal(name, ev_string)
#define globalvec(required, name) doglobal(name, ev_vector) doglobal_v(name[0], name##_x, ev_float) doglobal_v(name[1], name##_y, ev_float) doglobal_v(name[2], name##_z, ev_float)
#define globalfunc(required, name) doglobal(name, ev_function)
luagloballist
#undef doglobal
#define doglobal(n, t) doglobal_v(n,n,t)
luaextragloballist
#define parm(n)\
pr_global_ptrs->spawnparamglobals[n] = &lua.globals.parm[n]; \
lua.globflds[flds].offset = (char*)&lua.globals.parm[n] - (char*)&lua.globals; \
lua.globflds[flds].name = "parm"#n; \
lua.globflds[flds].type = ev_float; \
Hash_AddInsensitive(&lua.globalfields, lua.globflds[flds].name, &lua.globflds[flds], &lua.globflds[flds].buck); \
flds++
parm( 0);parm( 1);parm( 2);parm( 3);parm( 4);parm( 5);parm( 6);parm( 7);
parm( 8);parm( 9);parm(10);parm(11);parm(12);parm(13);parm(14);parm(15);
#undef parm
lua.numflds = 0;
bucks = 256;
Hash_InitTable(&lua.entityfields, bucks, Z_Malloc(Hash_BytesForBuckets(bucks)));
#define doefield(n, t) \
lua.entflds[lua.numflds].offset = (char*)&v->n - (char*)v; \
lua.entflds[lua.numflds].name = #n; \
lua.entflds[lua.numflds].type = t; \
Hash_AddInsensitive(&lua.entityfields, lua.entflds[lua.numflds].name, &lua.entflds[lua.numflds], &lua.entflds[lua.numflds].buck); \
lua.numflds++;
#define doefield_v(o, f, t) \
lua.entflds[lua.numflds].offset = (char*)&v->o - (char*)v; \
lua.entflds[lua.numflds].name = #f; \
lua.entflds[lua.numflds].type = t; \
Hash_AddInsensitive(&lua.entityfields, lua.entflds[lua.numflds].name, &lua.entflds[lua.numflds], &lua.entflds[lua.numflds].buck); \
lua.numflds++;
#define comfieldentity(name,desc) doefield(name, ev_entity)
#define comfieldint(name,desc) doefield(name, ev_integer)
#define comfieldfloat(name,desc) doefield(name, ev_float)
#define comfieldstring(name,desc) doefield(name, ev_string)
#define comfieldvector(name,desc) doefield(name, ev_vector) doefield_v(name[0], name##_x, ev_float) doefield_v(name[1], name##_y, ev_float) doefield_v(name[2], name##_z, ev_float)
#define comfieldfunction(name,typestr,desc) doefield(name, ev_function)
comqcfields
#undef doefield
#undef doefield_v
#define doefield(n, t) \
lua.entflds[lua.numflds].offset = (char*)&xv->n - (char*)v; \
lua.entflds[lua.numflds].name = #n; \
lua.entflds[lua.numflds].type = t; \
Hash_AddInsensitive(&lua.entityfields, lua.entflds[lua.numflds].name, &lua.entflds[lua.numflds], &lua.entflds[lua.numflds].buck); \
lua.numflds++;
#define doefield_v(o, f, t) \
lua.entflds[lua.numflds].offset = (char*)&xv->o - (char*)v; \
lua.entflds[lua.numflds].name = #f; \
lua.entflds[lua.numflds].type = t; \
Hash_AddInsensitive(&lua.entityfields, lua.entflds[lua.numflds].name, &lua.entflds[lua.numflds], &lua.entflds[lua.numflds].buck); \
lua.numflds++;
comextqcfields
svextqcfields
PR_SV_FillWorldGlobals(world);
}
void QDECL Lua_ExecuteProgram(pubprogfuncs_t *funcs, func_t func)
{
unsigned int entnum = func >> 10;
func &= 1023;
if (!entnum)
{
//okay, its the global table.
lua_pushglobaltable(lua.ctx);
}
else
{
entnum-=1;
if (entnum >= lua.maxedicts)
return; //erk...
//get the entity's table
lua_pushlightuserdata(lua.ctx, lua.edicttable[entnum]);
lua_gettable(lua.ctx, LUA_REGISTRYINDEX);
}
//read the function from the table
lua_pushlightuserdata(lua.ctx, (void *)(qintptr_t)func);
lua_rawget(lua.ctx, -2);
//and now invoke it.
if (lua_pcall(lua.ctx, 0, 0, 0) != 0)
{
const char *s = lua_tolstring(lua.ctx, -1, NULL);
Con_Printf(CON_WARNING "%s\n", s);
lua_pop(lua.ctx, 1);
}
}
void PDECL Lua_CloseProgs(pubprogfuncs_t *inst)
{
lua_close(lua.ctx);
free(lua.edicttable);
lua.edicttable = NULL;
lua.maxedicts = 0;
memset(&lua, 0, sizeof(lua));
Z_FreeTags(LUA_MALLOC_TAG);
}
static void QDECL Lua_Get_FrameState(world_t *w, wedict_t *ent, framestate_t *fstate)
{
memset(fstate, 0, sizeof(*fstate));
fstate->g[FS_REG].frame[0] = ent->v->frame;
fstate->g[FS_REG].frametime[0] = ent->xv->frame1time;
fstate->g[FS_REG].lerpweight[0] = 1;
fstate->g[FS_REG].endbone = 0x7fffffff;
fstate->g[FST_BASE].frame[0] = ent->xv->baseframe;
fstate->g[FST_BASE].frametime[0] = ent->xv->/*base*/frame1time;
fstate->g[FST_BASE].lerpweight[0] = 1;
fstate->g[FST_BASE].endbone = ent->xv->basebone;
#if defined(SKELETALOBJECTS) || defined(RAGDOLL)
if (ent->xv->skeletonindex)
skel_lookup(w, ent->xv->skeletonindex, fstate);
#endif
}
qboolean PR_LoadLua(void)
{
world_t *world = &sv.world;
pubprogfuncs_t *pf;
vfsfile_t *sourcefile = NULL;
if ((sourcefile = FS_OpenVFS("qwprogs.lua", "rb", FS_GAME)))
progstype = PROG_QW;
else if ((sourcefile = FS_OpenVFS("progs.lua", "rb", FS_GAME)))
progstype = PROG_NQ;
else
return false;
if (!init_lua())
{
VFS_CLOSE(sourcefile);
Con_Printf("WARNING: Found progs.lua, but could load load lua library\n");
return false;
}
pf = svprogfuncs = &lua.progfuncs;
pf->Shutdown = Lua_CloseProgs;
pf->AddString = Lua_AddString;
pf->EdictNum = Lua_EdictNum;
pf->NumForEdict = Lua_NumForEdict;
pf->EdictToProgs = Lua_EdictToProgs;
pf->ProgsToEdict = Lua_ProgsToEdict;
pf->EntAlloc = Lua_EntAlloc;
pf->EntFree = Lua_EntRemove;
pf->EntClear = Lua_EntClear;
pf->FindGlobal = Lua_FindGlobal;
pf->load_ents = Lua_LoadEnts;
pf->globals = Lua_Globals;
pf->GetEdictFieldValue = Lua_GetEdictFieldValue;
pf->SetStringField = Lua_SetStringField;
pf->StringToProgs = Lua_StringToProgs;
pf->StringToNative = Lua_StringToNative;
pf->ExecuteProgram = Lua_ExecuteProgram;
pf->FindFunction = Lua_FindFunction;
world->Event_Touch = Lua_Event_Touch;
world->Event_Think = Lua_Event_Think;
world->Event_Sound = SVQ1_StartSound;
world->Event_ContentsTransition = Lua_Event_ContentsTransition;
world->Get_CModel = SVPR_GetCModel;
world->Get_FrameState = Lua_Get_FrameState;
world->progs = pf;
world->progs->parms = &lua.progfuncsparms;
world->progs->parms->user = world;
world->progs->parms->Printf = PR_Printf;
world->progs->parms->DPrintf = PR_DPrintf;
world->usesolidcorpse = true;
Lua_SetupGlobals(world);
svs.numprogs = 0; //Why is this svs?
#ifdef VM_Q1
world->edict_size = sizeof(stdentvars_t) + sizeof(extentvars_t);
#else
world->edict_size = sizeof(stdentvars_t);
#endif
//force items2 instead of serverflags
sv.haveitems2 = true;
//initalise basic lua context
lua.ctx = lua_newstate(my_lua_alloc, NULL); //create our lua state
// luaL_openlibs(lua.ctx);
my_lua_registerbuiltins(lua.ctx);
//spawn the world, woo.
world->edicts = (wedict_t*)pf->EntAlloc(pf,false,0);
//load the gamecode now. it should be safe for it to call various builtins.
if (0 != lua_load(lua.ctx, my_lua_Reader, sourcefile, "progs.lua", "bt")) //load the file, embed it within a function and push it
{
Con_Printf("Error trying to parse %s: %s\n", "progs.lua", lua_tolstring(lua.ctx, -1, NULL));
lua_pop(lua.ctx, 1);
}
else
{
if (lua_pcall(lua.ctx, 0, 0, 0) != 0)
{
const char *s = lua_tolstring(lua.ctx, -1, NULL);
Con_Printf(CON_WARNING "%s\n", s);
lua_pop(lua.ctx, 1);
}
}
VFS_CLOSE(sourcefile);
return true;
}
#endif //VM_LUA
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