#include <amxmodx>
#include <fakemeta>
#include <hamsandwich>
 
#define PLUGIN "Paintball Gun"
#define VERSION "1.0"
#define AUTHOR "AUTHOR"
 
#define MAX_PAINTBALLS	200
#define TASK_PB_RESET	1000
#define TASK_RELOAD	2000
 
new g_paintballs[MAX_PAINTBALLS], g_pbstatus[MAX_PAINTBALLS], g_pbcount, Float:lastshot[33], Float:nextattack[33], freezetime;
new pbgun, pbusp, pbglock, color, shots, veloc, speed, blife, sound, bglow, damge, friendlyfire, tgun, ctgun, beamspr;
 
static const g_shot_anim[4] = {0, 3, 9, 5};
static const g_pbgun_models[11][] = {"models/v_pbgun.mdl", "models/v_pbgun1.mdl", "models/v_pbgun2.mdl", "models/v_pbgun3.mdl", "models/v_pbgun4.mdl", "models/v_pbgun5.mdl", "models/v_pbgun6.mdl", "models/v_pbgun7.mdl", "models/v_pbgun8.mdl", "models/v_pbgun9.mdl", "models/v_pbgun10.mdl"};
 
public plugin_init()
{
	register_plugin(PLUGIN, VERSION, AUTHOR);
	register_cvar("paintballgun", VERSION, FCVAR_SERVER|FCVAR_UNLOGGED);
	register_clcmd("say /ent", "ent_info", ADMIN_SLAY);
	pbgun = register_cvar("amx_pbgun", "1");
	pbusp = register_cvar("amx_pbusp", "1");
	pbglock = register_cvar("amx_pbglock", "1");
 
	if (get_pcvar_num(pbgun) || get_pcvar_num(pbusp) || get_pcvar_num(pbglock))
	{
		register_event("CurWeapon", "ev_curweapon", "be");
		register_logevent("ev_roundstart", 2, "0=World triggered", "1=Round_Start");
		if (get_cvar_num("mp_freezetime") > 0)
			register_event("HLTV", "ev_freezetime", "a", "1=0", "2=0");
 
		register_forward(FM_Touch, "fw_touch");
		register_forward(FM_SetModel, "fw_setmodel");
		register_forward(FM_PlayerPreThink, "fw_playerprethink", 1);
		register_forward(FM_UpdateClientData, "fw_updateclientdata", 1);
 
		color = register_cvar("pbgun_color", "2");
		shots = register_cvar("pbgun_shots", "100");
		veloc = register_cvar("pbgun_velocity", "2000");
		speed = register_cvar("pbgun_speed", "0.08");
		blife = register_cvar("pbgun_life", "15");
		sound = register_cvar("pbgun_sound", "1");
		bglow = register_cvar("pbgun_glow", "a");
		damge = register_cvar("pbgun_damage", "100");
		friendlyfire = get_cvar_pointer("mp_friendlyfire");
 
		new a, max_ents_allow = global_get(glb_maxEntities) - 5;
		for (a = 1; a <= get_pcvar_num(shots); a++)
			if (a < MAX_PAINTBALLS)
				if (engfunc(EngFunc_NumberOfEntities) < max_ents_allow)
				{
					g_paintballs[a] = engfunc(EngFunc_CreateNamedEntity, engfunc(EngFunc_AllocString, "info_target"));
					if (pev_valid(g_paintballs[a]))
					{
						set_pev(g_paintballs[a], pev_effects, pev(g_paintballs[a], pev_effects) | EF_NODRAW);
						g_pbcount++;
					}
				}
		if (g_pbcount < 1)
			set_fail_state("[AMXX] Failed to load Paintball Gun (unable to create ents)");
 
		server_print("*** %s v%s by %s Enabled ***", PLUGIN, VERSION, AUTHOR);
	}
}
 
public plugin_precache()
{
	register_cvar("amx_pbgun", "1");
	register_cvar("amx_pbusp", "1");
	register_cvar("amx_pbglock", "1");
	register_cvar("pbgun_tgun", "1");
	register_cvar("pbgun_ctgun", "6");
	tgun = get_cvar_num("pbgun_tgun");
	ctgun = get_cvar_num("pbgun_ctgun");
	if (get_cvar_num("amx_pbgun")) {
		precache_model(g_pbgun_models[tgun]);
		precache_model(g_pbgun_models[ctgun]);
		precache_model((ctgun) ? "models/p_pbgun1.mdl" : "models/p_pbgun.mdl");
		precache_model("models/w_pbgun.mdl");
	}
	if (get_cvar_num("amx_pbusp")) {
		precache_model("models/v_pbusp.mdl");
		precache_model("models/p_pbusp.mdl");
	}
	if (get_cvar_num("amx_pbglock")) {
		precache_model("models/v_pbglock.mdl");
		precache_model("models/p_pbglock.mdl");
	}
	if (get_cvar_num("amx_pbgun") || get_cvar_num("amx_pbusp") || get_cvar_num("amx_pbglock")) {
		precache_sound("misc/pb1.wav");
		precache_sound("misc/pb2.wav");
		precache_sound("misc/pb3.wav");
		precache_sound("misc/pb4.wav");
		precache_sound("misc/pbg.wav");
		precache_model("models/w_paintball.mdl");
		precache_model("sprites/paintball.spr");
	}
	beamspr = precache_model("sprites/laserbeam.spr");
}
 
public ent_info(id)
	client_print(id, print_chat, "[AMXX] [Ent Info (Current/Max)] Paintballs: (%d/%d)   Entities: (%d/%d)", g_pbcount, get_pcvar_num(shots), engfunc(EngFunc_NumberOfEntities), global_get(glb_maxEntities));
 
public ev_curweapon(id)
{
	new model[25];
	pev(id, pev_viewmodel2, model, 24);
	if (equali(model, "models/v_mp5.mdl") && get_pcvar_num(pbgun))
	{
		set_pev(id, pev_viewmodel2, (get_user_team(id) == 1) ? g_pbgun_models[tgun] : g_pbgun_models[ctgun]);
		set_pev(id, pev_weaponmodel2, (ctgun) ? "models/p_pbgun1.mdl" : "models/p_pbgun.mdl");
	}
	else if (equali(model, "models/v_usp.mdl") && get_pcvar_num(pbusp))
	{
		set_pev(id, pev_viewmodel2, "models/v_pbusp.mdl");
		set_pev(id, pev_weaponmodel2, "models/p_pbusp.mdl");
	}
	else if (equali(model, "models/v_glock18.mdl") && get_pcvar_num(pbglock))
	{
		set_pev(id, pev_viewmodel2, "models/v_pbglock.mdl");
		set_pev(id, pev_weaponmodel2, "models/p_pbglock.mdl");
	}
}
 
public fw_setmodel(ent, model[]) 
{
 	if (equali(model, "models/w_mp5.mdl")) 
		if (get_pcvar_num(pbgun))
		{
			engfunc(EngFunc_SetModel, ent, "models/w_pbgun.mdl");
			return FMRES_SUPERCEDE;
		}
	return FMRES_IGNORED;
}
 
public fw_updateclientdata(id, sw, cd_handle)
{
	if (user_has_pbgun(id) && cd_handle)
	{
		set_cd(cd_handle, CD_ID, 1);
		get_cd(cd_handle, CD_flNextAttack, nextattack[id]);
		//set_cd(cd_handle, CD_flNextAttack, 10.0);
		return FMRES_HANDLED;
	}
	return FMRES_IGNORED;
}
 
public fw_playerprethink(id)
{
	new my_pbgun = user_has_pbgun(id);
	if (my_pbgun)
	{
		new buttons = pev(id, pev_button);
		if (buttons & IN_ATTACK)
		{
			new ammo, null = get_user_weapon(id, ammo, null);
			if (ammo)
			{
				set_pev(id, pev_button, buttons & ~IN_ATTACK);
				new Float:gametime = get_gametime(), Float:g_speed;
				if (my_pbgun == 1)
					g_speed = get_pcvar_float(speed);
				else
					g_speed = (my_pbgun == 2) ? get_pcvar_float(speed) * 2.0 : get_pcvar_float(speed) * 3.0;
				if (gametime-lastshot[id] > g_speed  && nextattack[id] < 0.0 && !freezetime)
				{
					if (paint_fire(id))
					{
						lastshot[id] = gametime;
						set_user_clip(id, ammo - 1);
						set_pev(id, pev_punchangle, Float:{-0.5, 0.0, 0.0});
						message_begin(MSG_ONE_UNRELIABLE, SVC_WEAPONANIM, _, id);
						write_byte(g_shot_anim[my_pbgun]);
						write_byte(0);
						message_end();
						if (get_pcvar_num(sound))
							emit_sound(id, CHAN_AUTO, "misc/pbg.wav", 1.0, ATTN_NORM, 0, PITCH_NORM);
					}
				}
			}
		}
	}
	return FMRES_IGNORED;
}
 
public paint_fire(id)
{
	new a, ent;
	while (a++ < g_pbcount - 1 && !ent)
		if (g_pbstatus[a] == 0)
			ent = g_pbstatus[a] = g_paintballs[a];
	if (!ent)
		while (a-- > 1 && !ent)
			if (g_pbstatus[a] == 2)
				ent = g_pbstatus[a] = g_paintballs[a];
 
	if (pev_valid(ent) && is_user_alive(id))
	{
		new Float:vangles[3], Float:nvelocity[3], Float:voriginf[3], vorigin[3], clr;
		set_pev(ent, pev_classname, "pbBullet");
		set_pev(ent, pev_owner, id);
		engfunc(EngFunc_SetModel, ent, "models/w_paintball.mdl");
		engfunc(EngFunc_SetSize, ent, Float:{-1.0, -1.0, -1.0}, Float:{1.0, 1.0, 1.0});
 
		switch (get_pcvar_num(color))
		{
			case 2: clr = (get_user_team(id) == 1) ? 0 : 1;
			case 3: clr = (get_user_team(id) == 1) ? 4 : 3;
			case 4: clr = (get_user_team(id) == 1) ? 2 : 5;
			default: clr = random_num(0, 6);
		}
		set_pev(ent, pev_skin, clr);
 
		get_user_origin(id, vorigin, 1);
		IVecFVec(vorigin, voriginf);
		engfunc(EngFunc_SetOrigin, ent, voriginf);
 
		vangles[0] = random_float(-180.0, 180.0);
		vangles[1] = random_float(-180.0, 180.0);
		set_pev(ent, pev_angles, vangles);
 
		pev(id, pev_v_angle, vangles);
		set_pev(ent, pev_v_angle, vangles);
		pev(id, pev_view_ofs, vangles);
		set_pev(ent, pev_view_ofs, vangles);
 
		set_pev(ent, pev_solid, 2);
		set_pev(ent, pev_movetype, 5);
 
		velocity_by_aim(id, get_pcvar_num(veloc), nvelocity);
		set_pev(ent, pev_velocity, nvelocity);
		set_pev(ent, pev_effects, pev(ent, pev_effects) & ~EF_NODRAW);
 
		set_task(0.1, "paint_glow", ent);
		set_task(15.0 , "paint_reset", ent+TASK_PB_RESET);
	}
 
	return ent;
}
 
public fw_touch(bullet, ent)
{
	new class[20];
	pev(bullet, pev_classname, class, 19);
	if (!equali(class, "pbBullet"))
		return FMRES_IGNORED;
 
	new Float:origin[3], class2[20], owner = pev(bullet, pev_owner), is_ent_alive = is_user_alive(ent);
	pev(ent, pev_classname, class2, 19);
	pev(bullet, pev_origin, origin);
 
	if (is_ent_alive)
	{
		if (owner == ent || pev(ent, pev_takedamage) == DAMAGE_NO)
			return FMRES_IGNORED;
		if (get_user_team(owner) == get_user_team(ent))
			if (!get_pcvar_num(friendlyfire))
				return FMRES_IGNORED;
 
		ExecuteHam(Ham_TakeDamage, ent, owner, owner, float(get_pcvar_num(damge)), 4098);
	}
 
	if (!equali(class, class2))
	{	
		set_pev(bullet, pev_velocity, Float:{0.0, 0.0, 0.0});
		set_pev(bullet, pev_classname, "pbPaint");
		set_pev(bullet, pev_solid, 0);
		set_pev(bullet, pev_movetype, 0);
		engfunc(EngFunc_SetModel, bullet, "sprites/paintball.spr");
 
		new a, findpb = 0;
		while (a++ < g_pbcount && !findpb)
			if (g_paintballs[a] == bullet)
				findpb = g_pbstatus[a] = 2;
 
		remove_task(bullet);
		remove_task(bullet+TASK_PB_RESET);
 
		if (get_pcvar_num(sound))
		{
			static wav[20];
			formatex(wav, 20, is_ent_alive ? "player/pl_pain%d.wav" : "misc/pb%d.wav", is_ent_alive ? random_num(4,7) : random_num(1,4));
			emit_sound(bullet, CHAN_AUTO, wav, 1.0, ATTN_NORM, 0, PITCH_NORM);
		}
 
		new bool:valid_surface = (is_ent_alive || containi(class2, "door") != -1) ? false : true;
if (pev(ent, pev_health) && !is_ent_alive && pev(ent,pev_takedamage))
{
	ExecuteHam(Ham_TakeDamage, ent, owner, owner, float(pev(ent, pev_health)), 0);
	valid_surface = false;
}
		if (valid_surface)
		{
			paint_splat(bullet);
			set_task(float(get_pcvar_num(blife)), "paint_reset", bullet+TASK_PB_RESET);
		}
		else
			paint_reset(bullet+TASK_PB_RESET);
 
		return FMRES_HANDLED; 
	}
 
	return FMRES_IGNORED;
}
 
public paint_splat(ent)
{
	new Float:origin[3], Float:norigin[3], Float:viewofs[3], Float:angles[3], Float:normal[3], Float:aiming[3];
	pev(ent, pev_origin, origin);
	pev(ent, pev_view_ofs, viewofs);
	pev(ent, pev_v_angle, angles);
 
	norigin[0] = origin[0] + viewofs[0];
	norigin[1] = origin[1] + viewofs[1];
	norigin[2] = origin[2] + viewofs[2];
	aiming[0] = norigin[0] + floatcos(angles[1], degrees) * 1000.0;
	aiming[1] = norigin[1] + floatsin(angles[1], degrees) * 1000.0;
	aiming[2] = norigin[2] + floatsin(-angles[0], degrees) * 1000.0;
 
	engfunc(EngFunc_TraceLine, norigin, aiming, 0, ent, <