/*
 * Copyright (c) 2023 Marco Cawthorne <marco@icculus.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/*QUAKED weapon_shotgun (0 0 1) (-16 -16 0) (16 16 32)
"model" "models/g_shotgun.mdl"

HALF-LIFE (1998) ENTITY

Shotgun Weapon

*/

enum
{
	SHOTGUN_IDLE1,
	SHOTGUN_FIRE1
};

#ifdef CLIENT
void w_shotgun_ejectshell(void)
{
	static void w_shotgun_ejectshell_death(void) {
		remove(self);
	}
	static void w_shotgun_ejectshell_touch(void) {
		if (other == world)
			Sound_Play(self, CHAN_BODY, "modelevent_shotgunshell.land");
	}
	entity eShell = spawn();
	setmodel(eShell, "models/shotgunshell.mdl");
	eShell.solid = SOLID_BBOX;
	eShell.movetype = MOVETYPE_BOUNCE;
	eShell.drawmask = MASK_ENGINE;
	eShell.angles = [pSeat->m_eViewModel.angles[0], pSeat->m_eViewModel.angles[1], 0];
	eShell.velocity = pSeat->m_vecPredictedVelocity;

	makevectors(pSeat->m_eViewModel.angles);
	eShell.velocity += (v_forward * 0);
	eShell.velocity += (v_right * 80);
	eShell.velocity += (v_up * 100);
	eShell.touch = w_shotgun_ejectshell_touch;

	eShell.avelocity = [0,45,900];
	eShell.think = w_shotgun_ejectshell_death;
	eShell.nextthink = time + 2.5f;
	setsize(eShell, [0,0,0], [0,0,0]);
	setorigin(eShell, pSeat->m_eViewModel.origin + (v_forward * 20) + (v_up * -16));
}
#endif

void w_shotgun_precache(void)
{
#ifdef SERVER
	Sound_Precache("weapon_shotgun.shoot");
	precache_model("models/g_shot.mdl");
	precache_model("models/shotgunshell.mdl");
#else
	precache_model("models/v_shot.mdl");
	precache_model("models/p_shot.mdl");
	precache_model("models/shotgunshell.mdl");
	Sound_Precache("modelevent_shotgunshell.land");
#endif
}

void
w_shotgun_updateammo(player pl)
{
	Weapons_UpdateAmmo(pl, -1, pl.ammo_shells, -1);
}

string
w_shotgun_wmodel(void)
{
	return "models/g_shot.mdl";
}

string
w_shotgun_pmodel(player pl)
{
	return "models/p_shot.mdl";
}

string
w_shotgun_deathmsg(void)
{
	return "";
}

int
w_shotgun_pickup(player pl, int new, int startammo)
{
#ifdef SERVER
	if (pl.ammo_shells < MAX_A_SHELLS) {
		pl.ammo_shells = bound(0, pl.ammo_shells + 5, MAX_A_SHELLS);
	} else {
		if (!new)
			return (0);
	}
#endif
	return (1);
}

void
w_shotgun_draw(player pl)
{
	Weapons_SetModel("models/v_shot.mdl");
}

void
w_shotgun_primary(player pl)
{
	if (pl.w_attack_next > 0.0)
		return;
	if (pl.ammo_shells <= 0) {
		Weapons_SwitchBest(pl, 0);
		return;
	}

#ifdef SERVER
	/* Singleplayer is more accurate */
	TraceAttack_FireBulletsWithDecal(6, pl.origin + pl.view_ofs, Skill_GetValue("plr_shotgun", 4), [0.1,0.1], WEAPON_SHOTGUN, "Impact.BigShot");
	Sound_Play(pl, CHAN_WEAPON, "weapon_shotgun.shoot");

	if (pl.HasQuadDamage()) {
		Sound_Play(pl, CHAN_ITEM, "item_artifact_super_damage.attack");
	}
#else
	//View_AddEvent(w_shotgun_ejectshell, 0.25f);
#endif

	Weapons_ViewAnimation(pl, SHOTGUN_FIRE1);
	Weapons_ViewPunchAngle(pl, [-5,0,0]);
	Animation_PlayerTop(pl, (pl.flags & FL_CROUCHING) ? ANIM_CR_SHOOTSHOTGUN  : ANIM_SHOOTSHOTGUN, 0.5f);

	pl.ammo_shells--;

	pl.w_idle_next = 0.5f;
	pl.w_attack_next = 0.5;
}

void
w_shotgun_crosshair(player pl)
{
#ifdef CLIENT
	Cross_DrawSub(g_cross_spr, [24,24], [48/128,24/128], [0.1875, 0.1875]);

	HUD_DrawAmmo2();
	vector aicon_pos = g_hudmins + [g_hudres[0] - 48, g_hudres[1] - 42];
	drawsubpic(aicon_pos, [24,24], g_hudsgammo, [0, 0], [1,1], g_hud_color, pSeatLocal->m_flAmmo2Alpha, DRAWFLAG_ADDITIVE);
#endif
}

float
w_shotgun_aimanim(player pl)
{
	return pl.flags & FL_CROUCHING ? ANIM_CR_AIMSHOTGUN : ANIM_AIMSHOTGUN;
}

int
w_shotgun_isempty(player pl)
{
	if (pl.ammo_shells <= 0)
		return 1;

	return 0;
}

void
w_shotgun_hudpic(player pl, int selected, vector pos, float a)
{
#ifdef CLIENT
	vector hud_col;

	if (w_shotgun_isempty(pl))
		hud_col = [1,0,0];
	else
		hud_col = g_hud_color;

	if (selected) {
		drawsubpic(pos, [170,45], g_hudsg_spr, [0,0], [1,0.625], hud_col, a, DRAWFLAG_ADDITIVE);
	} else {
		drawsubpic(pos, [170,45], g_hudsg_spr, [0,0], [1,0.625], hud_col, a, DRAWFLAG_ADDITIVE);
	}

	HUD_DrawAmmoBar(pos, pl.ammo_shells, MAX_A_SHELLS, a);
#endif
}

weapontype_t
w_shotgun_type(player pl)
{
	return WPNTYPE_RANGED;
}

weapon_t w_shotgun =
{
	.name		= "shotgun",
	.id			= ITEM_SHOTGUN,
	.slot		= 1,
	.slot_pos	= 0,
	.weight		= 15,
	.draw		= w_shotgun_draw,
	.holster	= __NULL__,
	.primary	= w_shotgun_primary,
	.secondary	= __NULL__,
	.reload		= __NULL__,
	.release	= __NULL__,
	.postdraw	= w_shotgun_crosshair,
	.precache	= w_shotgun_precache,
	.pickup		= w_shotgun_pickup,
	.updateammo	= w_shotgun_updateammo,
	.wmodel		= w_shotgun_wmodel,
	.pmodel		= w_shotgun_pmodel,
	.deathmsg	= w_shotgun_deathmsg,
	.aimanim	= w_shotgun_aimanim,
	.isempty	= w_shotgun_isempty,
	.type		= w_shotgun_type,
	.hudpic		= w_shotgun_hudpic
};

#ifdef SERVER

#endif