#include <amxmodx>
#include <amxmisc>
#include <fakemeta>
#include <zombieplague>
#include <hamsandwich>
#include <fakemeta_util>

#define PLUGIN "Antidote Grenade"
#define VERSION "1.1"
#define AUTHOR "Sn!ff3r"

new const NADE_TYPE_ANTIDOTEBOMB = 6969
new const Float:RADIUS = 250.0
new const sprite_grenade_trail[] = "sprites/laserbeam.spr"
new const sprite_grenade_ring[] = "sprites/shockwave.spr"
new const item_cost = 5
new const item_name[] = "Antidote Grenade"
new const model_grenade_infect[] = "models/zombie_palgue/v_flare.mdl"

new item_id
new has_bomb[33]
new cvar_enabled, cvar_fragsinfect, cvar_humanbonushp, cvar_flaregrenades
new g_trailSpr, g_exploSpr, g_msgScoreInfo, g_msgDeathMsg, g_msgScoreAttrib
new g_limit

public plugin_init() 
{
	register_plugin(PLUGIN, VERSION, AUTHOR)
	
	RegisterHam(Ham_Think, "grenade", "fw_ThinkGrenade")
	RegisterHam(Ham_Killed, "player", "fw_PlayerKilled")
	register_event("HLTV", "Event_NewRound", "a", "1=0", "2=0")
	register_forward(FM_SetModel, "fw_SetModel")	
	
	register_message(get_user_msgid("CurWeapon"), "message_cur_weapon")
	
	cvar_enabled = register_cvar("zp_antidote_bomb","1")
	cvar_fragsinfect = get_cvar_pointer("zp_zombie_frags_for_infect")
	// cvar_humanbonushp = register_cvar("zp_antidote_bomb_extra_hp","0")
	cvar_flaregrenades = get_cvar_pointer("zp_flare_grenades")
	
	g_msgScoreInfo = get_user_msgid("ScoreInfo")
	g_msgDeathMsg = get_user_msgid("DeathMsg")
	g_msgScoreAttrib = get_user_msgid("ScoreAttrib")
}

public plugin_precache()
{
	g_trailSpr = engfunc(EngFunc_PrecacheModel, sprite_grenade_trail)
	g_exploSpr = engfunc(EngFunc_PrecacheModel, sprite_grenade_ring)
	
	engfunc(EngFunc_PrecacheModel, model_grenade_infect)
	
	item_id = zp_register_extra_item(item_name,item_cost,ZP_TEAM_HUMAN)
}

public Event_NewRound()
	g_limit = 0
	
public client_disconnect(id)
{
	has_bomb[id] = 0
}

public zp_extra_item_selected(player, itemid)
{
	if(itemid == item_id)
	{
		if(g_limit >= 5)
		{
			client_print(player, print_chat, "Лимит гранат!")
			return ZP_PLUGIN_HANDLED
		}
		has_bomb[player] = 1	
		fm_strip_user_gun(player,9)
		fm_give_item(player,"weapon_smokegrenade")
		g_limit++
	}
	return PLUGIN_CONTINUE
}

public fw_PlayerKilled(victim, attacker, shouldgib)
{
	has_bomb[victim] = 0	
}

public fw_ThinkGrenade(entity)
{	
	if(!pev_valid(entity))
		return HAM_IGNORED
		
	static Float:dmgtime	
	pev(entity, pev_dmgtime, dmgtime)
	
	if (dmgtime > get_gametime())
		return HAM_IGNORED	
	
	if(pev(entity, pev_flTimeStepSound) == NADE_TYPE_ANTIDOTEBOMB)
		antidote_explode(entity)
	
	return HAM_SUPERCEDE
}

public fw_SetModel(entity, const model[])
{
	if(!get_pcvar_num(cvar_enabled))
		return	
	
	static Float:dmgtime
	pev(entity, pev_dmgtime, dmgtime)
	
	if (dmgtime == 0.0)
		return
	
	if (equal(model[7], "w_sm", 4))
	{		
		new owner = pev(entity, pev_owner)		
		
		if(!zp_get_user_zombie(owner) && has_bomb[owner]) 
		{
			set_pcvar_num(cvar_flaregrenades,0)			
			
			fm_set_rendering(entity, kRenderFxGlowShell, 255, 128, 0, kRenderNormal, 16)
			
			message_begin(MSG_BROADCAST, SVC_TEMPENTITY)
			write_byte(TE_BEAMFOLLOW) 
			write_short(entity)
			write_short(g_trailSpr) 
			write_byte(10) 
			write_byte(10) 
			write_byte(255) 
			write_byte(128) 
			write_byte(0) 
			write_byte(200) 
			message_end()
			
			set_pev(entity, pev_flTimeStepSound, NADE_TYPE_ANTIDOTEBOMB)
		}
	}
	
}


public antidote_explode(ent)
{
	if (!zp_has_round_started()) return
	
	set_pcvar_num(cvar_flaregrenades,1)
	
	static Float:originF[3]
	pev(ent, pev_origin, originF)
	
	create_blast(originF)	
	
	static attacker
	attacker = pev(ent, pev_owner)
	
	has_bomb[attacker] = 0
	
	static victim
	victim = -1
	while ((victim = engfunc(EngFunc_FindEntityInSphere, victim, originF, RADIUS)) != 0)
	{
		if (!is_user_alive(victim) || !zp_get_user_zombie(victim) || zp_get_user_nemesis(victim) || zp_get_user_first_zombie(victim) || zp_get_user_last_zombie(victim))
			continue
		
		SendDeathMsg(attacker, victim)
		FixDeadAttrib(victim)
		UpdateFrags(attacker, victim, get_pcvar_num(cvar_fragsinfect), 1, 1)
		zp_disinfect_user(victim)
		zp_set_user_ammo_packs(attacker,zp_get_user_ammo_packs(attacker) + 1)
		fm_set_user_health(attacker, pev(attacker, pev_health)+get_pcvar_num(cvar_humanbonushp))
		
	}
	
	engfunc(EngFunc_RemoveEntity, ent)
}

public create_blast(const Float:originF[3])
{
	engfunc(EngFunc_MessageBegin, MSG_PVS, SVC_TEMPENTITY, originF, 0)
	write_byte(TE_BEAMCYLINDER) 
	engfunc(EngFunc_WriteCoord, originF[0]) 
	engfunc(EngFunc_WriteCoord, originF[1]) 
	engfunc(EngFunc_WriteCoord, originF[2]) 
	engfunc(EngFunc_WriteCoord, originF[0]) 
	engfunc(EngFunc_WriteCoord, originF[1]) 
	engfunc(EngFunc_WriteCoord, originF[2]+385.0)
	write_short(g_exploSpr) 
	write_byte(0) 
	write_byte(0) 
	write_byte(4) 
	write_byte(60) 
	write_byte(0) 
	write_byte(255) 
	write_byte(128) 
	write_byte(0) 
	write_byte(200) 
	write_byte(0) 
	message_end()
	
	engfunc(EngFunc_MessageBegin, MSG_PVS, SVC_TEMPENTITY, originF, 0)
	write_byte(TE_BEAMCYLINDER) 
	engfunc(EngFunc_WriteCoord, originF[0]) 
	engfunc(EngFunc_WriteCoord, originF[1]) 
	engfunc(EngFunc_WriteCoord, originF[2]) 
	engfunc(EngFunc_WriteCoord, originF[0]) 
	engfunc(EngFunc_WriteCoord, originF[1]) 
	engfunc(EngFunc_WriteCoord, originF[2]+470.0) 
	write_short(g_exploSpr) 
	write_byte(0)
	write_byte(0) 
	write_byte(4)
	write_byte(60) 
	write_byte(0) 
	write_byte(255) 
	write_byte(164) 
	write_byte(0) 
	write_byte(200) 
	write_byte(0)
	message_end()
	
	engfunc(EngFunc_MessageBegin, MSG_PVS, SVC_TEMPENTITY, originF, 0)
	write_byte(TE_BEAMCYLINDER) 
	engfunc(EngFunc_WriteCoord, originF[0]) 
	engfunc(EngFunc_WriteCoord, originF[1]) 
	engfunc(EngFunc_WriteCoord, originF[2])
	engfunc(EngFunc_WriteCoord, originF[0]) 
	engfunc(EngFunc_WriteCoord, originF[1]) 
	engfunc(EngFunc_WriteCoord, originF[2]+555.0) 
	write_short(g_exploSpr) 
	write_byte(0)
	write_byte(0)
	write_byte(4) 
	write_byte(60)
	write_byte(0) 
	write_byte(255) 
	write_byte(200) 
	write_byte(0) 
	write_byte(200) 
	write_byte(0) 
	message_end()
}

public UpdateFrags(attacker, victim, frags, deaths, scoreboard)
{
	set_pev(attacker, pev_frags, float(pev(attacker, pev_frags) + frags))
	
	fm_set_user_deaths(victim, fm_get_user_deaths(victim) + deaths)
	
	if (scoreboard)
	{	
		message_begin(MSG_BROADCAST, g_msgScoreInfo)
		write_byte(attacker) 
		write_short(pev(attacker, pev_frags)) 
		write_short(fm_get_user_deaths(attacker))
		write_short(0) 
		write_short(fm_get_user_team(attacker)) 
		message_end()
		
		message_begin(MSG_BROADCAST, g_msgScoreInfo)
		write_byte(victim) 
		write_short(pev(victim, pev_frags))
		write_short(fm_get_user_deaths(victim))
		write_short(0) 
		write_short(fm_get_user_team(victim))
		message_end()
	}
}

stock fm_set_user_deaths(id, value)
{
	set_pdata_int(id, 444, value, 5)
}

stock fm_get_user_deaths(id)
{
	return get_pdata_int(id, 444, 5)
}


stock fm_get_user_team(id)
{
	return get_pdata_int(id, 114, 5)
}

public SendDeathMsg(attacker, victim)
{
	message_begin(MSG_BROADCAST, g_msgDeathMsg)
	write_byte(attacker) 
	write_byte(victim) 
	write_byte(1) 
	write_string("grenade") 
	message_end()
}

public FixDeadAttrib(id)
{
	message_begin(MSG_BROADCAST, g_msgScoreAttrib)
	write_byte(id)
	write_byte(0)
	message_end()
}

public replace_models(id)
{
	if (!is_user_alive(id))
		return
	
	if(get_user_weapon(id) == CSW_SMOKEGRENADE && has_bomb[id])
	{
		set_pev(id, pev_viewmodel2, model_grenade_infect)
		
	}
}

public message_cur_weapon(msg_id, msg_dest, msg_entity)
{
	replace_models(msg_entity)
}