AMXX.pl: Support AMX Mod X i SourceMod

Witam,
Mógłby mi ktoś przerobić ten plugin tak by można było ten "item" kupić tylko 4 razy na rundę?

/*================================================================================
	
	-------------------------------------------------
	-*- [ZP] Extra Item: Anti-Infection Armor 1.0 -*-
	-------------------------------------------------
	
	~~~~~~~~~~~~~~~
	- Description -
	~~~~~~~~~~~~~~~
	
	This item gives humans some armor that offers protection
	against zombie injuries.
	
================================================================================*/

#include <amxmodx>
#include <fakemeta>
#include <zombieplague>

/*================================================================================
 [Plugin Customization]
=================================================================================*/

new const g_item_name[] = { "Anti-Infection Armor" }
const g_item_cost = 10

new const g_sound_buyarmor[] = { "items/tr_kevlar.wav" }
const g_armor_amount = 100
const g_armor_limit = 400

/*============================================================================*/

// Item IDs
new g_itemid_humanarmor

public plugin_precache()
{
	precache_sound(g_sound_buyarmor)
}

public plugin_init()
{
	register_plugin("[ZP] Extra: Anti-Infection Armor", "1.0", "MeRcyLeZZ")
	
	g_itemid_humanarmor = zp_register_extra_item(g_item_name, g_item_cost, ZP_TEAM_HUMAN)
}

// Human buys our upgrade, give him some armor
public zp_extra_item_selected(player, itemid)
{
	if (itemid == g_itemid_humanarmor)
	{
		set_pev(player, pev_armorvalue, float(min(pev(player, pev_armorvalue)+g_armor_amount, g_armor_limit)))
		engfunc(EngFunc_EmitSound, player, CHAN_BODY, g_sound_buyarmor, 1.0, ATTN_NORM, 0, PITCH_NORM)
	}
}

Sprawdź:

/*================================================================================
	
	-------------------------------------------------
	-*- [ZP] Extra Item: Anti-Infection Armor 1.0 -*-
	-------------------------------------------------
	
	~~~~~~~~~~~~~~~
	- Description -
	~~~~~~~~~~~~~~~
	
	This item gives humans some armor that offers protection
	against zombie injuries.
	
================================================================================*/

#include <amxmodx>
#include <fakemeta>
#include <zombieplague>
#include <ColorChat>

/*================================================================================
 [Plugin Customization]
=================================================================================*/

new const g_item_name[] = { "Anti-Infection Armor" }
const g_item_cost = 10

new const g_sound_buyarmor[] = { "items/tr_kevlar.wav" }
const g_armor_amount = 100
const g_armor_limit = 400

/*============================================================================*/

// Item IDs
new g_itemid_humanarmor, iBuyCount
const iMaxBuy = 4

public plugin_precache()
{
	precache_sound(g_sound_buyarmor)
}

public plugin_init()
{
	register_plugin("[ZP] Extra: Anti-Infection Armor", "1.0", "MeRcyLeZZ")
	register_event("HLTV", "event_round_start", "a", "1=0", "2=0")
	
	g_itemid_humanarmor = zp_register_extra_item(g_item_name, g_item_cost, ZP_TEAM_HUMAN)
}

// Human buys our upgrade, give him some armor
public zp_extra_item_selected(player, itemid)
{
	if (itemid == g_itemid_humanarmor)
	{
		if(iBuyCount >= iMaxBuy)
		{
			ColorChat(player, GREEN, "[ZP]^x01 Niestety juz nie mozesz kupowac wiecej Pancerza!")
			return ZP_PLUGIN_HANDLED;
		}
		
		iBuyCount++
		set_pev(player, pev_armorvalue, float(min(pev(player, pev_armorvalue)+g_armor_amount, g_armor_limit)))
		engfunc(EngFunc_EmitSound, player, CHAN_BODY, g_sound_buyarmor, 1.0, ATTN_NORM, 0, PITCH_NORM)
		ColorChat(player, GREEN, "[ZP]^x01 Kupiles^x04 Pancerz^x01!")
	}
	return PLUGIN_CONTINUE
}

L 03/06/2014 - 17:48:05: Start of error session.
L 03/06/2014 - 17:48:05: Info (map "zm_toxic_ice_attack") (file "addons/amxmodx/logs/error_20140306.log")
L 03/06/2014 - 17:48:05: Function "event_round_start" was not found
L 03/06/2014 - 17:48:05: [AMXX] Displaying debug trace (plugin "zp_extra_human_armor.amxx")
L 03/06/2014 - 17:48:05: [AMXX] Run time error 19: function not found 
L 03/06/2014 - 17:48:05: [AMXX]    [0] zp_extra_human_armor.sma::plugin_init (line 46)
L 03/06/2014 - 18:29:53: Start of error session.
L 03/06/2014 - 18:29:53: Info (map "zm_sawmill_gpex") (file "addons/amxmodx/logs/error_20140306.log")
L 03/06/2014 - 18:29:53: Function "event_round_start" was not found
L 03/06/2014 - 18:29:53: [AMXX] Displaying debug trace (plugin "zp_extra_human_armor.amxx")
L 03/06/2014 - 18:29:53: [AMXX] Run time error 19: function not found 
L 03/06/2014 - 18:29:53: [AMXX]    [0] zp_extra_human_armor.sma::plugin_init (line 46)
L 03/06/2014 - 19:10:55: Start of error session.
L 03/06/2014 - 19:10:55: Info (map "zm_nuke2012") (file "addons/amxmodx/logs/error_20140306.log")
L 03/06/2014 - 19:10:55: Function "event_round_start" was not found
L 03/06/2014 - 19:10:55: [AMXX] Displaying debug trace (plugin "zp_extra_human_armor.amxx")
L 03/06/2014 - 19:10:55: [AMXX] Run time error 19: function not found 
L 03/06/2014 - 19:10:55: [AMXX]    [0] zp_extra_human_armor.sma::plugin_init (line 46)
L 03/06/2014 - 19:34:41: Start of error session.
L 03/06/2014 - 19:34:41: Info (map "zm_hs_horror") (file "addons/amxmodx/logs/error_20140306.log")
L 03/06/2014 - 19:34:41: Function "event_round_start" was not found
L 03/06/2014 - 19:34:41: [AMXX] Displaying debug trace (plugin "zp_extra_human_armor.amxx")
L 03/06/2014 - 19:34:41: [AMXX] Run time error 19: function not found 
L 03/06/2014 - 19:34:41: [AMXX]    [0] zp_extra_human_armor.sma::plugin_init (line 46)

Takie errory teraz mam.