#include <sourcemod>
#include <cstrike>
#include <sdktools>
#include <sdkhooks>
#include <gum>

public Plugin myinfo =
{
    name = "Glock damage booster",
    author = "Prefix",
    description = "none",
    version = "1.0",
    url = "www.otaku.lt"
};

#define DamageBoost 2.0

#define ITEM_COST 20

#define GUN_UNLOCK "glock"

bool itemEnabled[MAXPLAYERS + 1];

public void OnPluginStart()
{
	// We are registering item here with parameters
	// itemRebuy - 0 = Item can be bought one time per connect, 1 = Buy item many times, 2 = Item can be bought one time per round
	// itemRebuyTimes - 0 = Infinite buy, >0 = Item rebuy times
	registerGumItem("Glock 2x damage", "Glock does 2x damage", ITEM_COST, 0, 0);
}

// Called when item/unlock was selected by menu
public void gumItemSetCallback(client)
{
	itemEnabled[client] = true;
}

// Called when item/unlock was selected by menu
public void gumItemUnSetCallback(client)
{
	itemEnabled[client] = false;
}

// Take the item/unlock from the player
public void OnClientDisconnect(client)
{
	if ( IsValidClient(client) )
		itemEnabled[client] = false;
}

public OnClientPutInServer(client)
{
	if ( IsValidClient(client) && !IsFakeClient(client) )
		SDKHook(client, SDKHook_TraceAttack, OnTraceAttack);
}

public Action OnTraceAttack(int victim, int &attacker, int &inflictor, float &damage, int &damagetype, int &ammotype, int hitbox, int hitgroup)
{
	if (victim == attacker)
		return Plugin_Continue;

	if (!IsValidAlive(attacker))
		return Plugin_Continue;

	if (!IsValidClient(victim))
		return Plugin_Continue;

	if (GetClientTeam(victim) == GetClientTeam(attacker))
		return Plugin_Continue;

	if (!itemEnabled[attacker])
		return Plugin_Continue;

	char weaponName[16];

	int iWeapon = GetEntPropEnt(attacker, Prop_Send, "m_hActiveWeapon");
	if(!(iWeapon > 0 && IsValidEdict(iWeapon))) return Plugin_Continue;
	GetEdictClassname(iWeapon, weaponName, sizeof(weaponName));

	if (StrContains(weaponName, GUN_UNLOCK) == -1)
		return Plugin_Continue;

	damage = damage*DamageBoost;
	return Plugin_Changed;
}