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Add opSetWeaponAmmoPid

This commit is contained in:
Alexander Batalov 2022-12-22 20:36:31 +03:00
parent 17a4ee8a68
commit 3b951b8578
1 changed files with 25 additions and 0 deletions
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25
src/sfall_opcodes.cc
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@ -163,6 +163,30 @@ static void opGetWeaponAmmoPid(Program* program)
programStackPushInteger(program, pid);
}
// There are two problems with this function.
//
// 1. Sfall's implementation changes ammo PID of misc items, which is impossible
// since it's stored in proto, not in the object.
// 2. Changing weapon's ammo PID is done without checking for ammo
// quantity/capacity which can probably lead to bad things.
//
// set_weapon_ammo_pid
static void opSetWeaponAmmoPid(Program* program)
{
int ammoTypePid = programStackPopInteger(program);
Object* obj = static_cast<Object*>(programStackPopPointer(program));
if (obj != nullptr) {
if (PID_TYPE(obj->pid) == OBJ_TYPE_ITEM) {
switch (itemGetType(obj)) {
case ITEM_TYPE_WEAPON:
obj->data.item.weapon.ammoTypePid = ammoTypePid;
break;
}
}
}
}
// get_weapon_ammo_count
static void opGetWeaponAmmoCount(Program* program)
{
@ -297,6 +321,7 @@ void sfallOpcodesInit()
interpreterRegisterOpcode(0x8211, opGetVersionMinor);
interpreterRegisterOpcode(0x8212, opGetVersionPatch);
interpreterRegisterOpcode(0x8217, opGetWeaponAmmoPid);
interpreterRegisterOpcode(0x8218, opSetWeaponAmmoPid);
interpreterRegisterOpcode(0x8219, opGetWeaponAmmoCount);
interpreterRegisterOpcode(0x821A, opSetWeaponAmmoCount);
interpreterRegisterOpcode(0x821C, opGetMouseX);