#define SERVER_MAX_PLAYERS 20 //Change to max players of your server

//define SHOWPATH if you want the path of bullet to be shown
//#define SHOWPATH

public OnFilterScriptInit()
{
	print("\n\n__________________________________________________________________");
	print(" Boom Headshot System by Johnson_boy loaded!");
	print(" Copyright Johnson_boy 2010");
	print("__________________________________________________________________\n\n");
	return 1;
}

public OnFilterScriptExit()
{
    print("\n\n__________________________________________________________________");
	print(" Boom Headshot System by Johnson_boy unloaded!");
	print(" Copyright Johnson_boy 2010");
	print("__________________________________________________________________\n\n");
	return 1;
}

public OnPlayerConnect(playerid) {
 	SendClientMessage(playerid, 0xFFFFFFFF, "This server is using Johnson_boy's Headshot script");
	return 1;
}

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
	if(newkeys & KEY_FIRE && newkeys & KEY_HANDBRAKE) {
	    if(GetPlayerWeapon(playerid) == 34 || GetPlayerWeapon(playerid) == 24 || GetPlayerWeapon(playerid) == 30 || GetPlayerWeapon(playerid) == 22 || GetPlayerWeapon(playerid) == 23) {
	        new Float:blahx, Float:blahy, Float:blahz;
			HeadshotCheck(playerid, blahx, blahy, blahz);
	        return 1;
	    }
		return 1;
 	}
	return 1;
}

stock PlayerName(playerid) {
	new name[24];
	GetPlayerName(playerid, name, sizeof(name));
	return name;
}

stock HeadshotCheck(playerid, &Float:x, &Float:y, &Float:z) {
	new Float:fx,Float:fy,Float:fz;
	GetPlayerCameraFrontVector(playerid, fx, fy, fz);

 	new Float:cx,Float:cy,Float:cz;
 	GetPlayerCameraPos(playerid, cx, cy, cz);

	for(new Float:i = 0.0; i < 50; i = i + 0.5) {
 		x = fx * i + cx;
		y = fy * i + cy;
		z = fz * i + cz;

		#if defined SHOWPATH
		CreatePickup(1239, 4, x, y, z, -1);
		#endif

		for(new player = 0; player < SERVER_MAX_PLAYERS; player ++) {
		    if(IsPlayerInRangeOfPoint(player, 0.3, x, y, z - 0.7)) {
				if(player != playerid) {
					new string[128];
					format(string, sizeof(string), "Headshot: %s was shot to head by %s", PlayerName(player), PlayerName(playerid));
					SendClientMessageToAll(0xFF9900AA, string);
					GameTextForPlayer(playerid, "~r~HEADSHOT!", 2000, 6);
					GameTextForPlayer(player, "~r~HEADSHOT!", 2000, 6);
					SetPlayerHealth(player, 0.0);
				}
			}
		}
	}
	return 1;
}

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
    if(newkeys & KEY_FIRE && newkeys & KEY_HANDBRAKE)
    {
        // condition removed...
        new Float:blahx, Float:blahy, Float:blahz;
        HeadshotCheck(playerid, blahx, blahy, blahz);
        return 1;
    }
    return 1;
}

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
	if(newkeys & KEY_FIRE && newkeys & KEY_HANDBRAKE) {
	    if(GetPlayerWeapon(playerid) == 34) {
	        new Float:blahx, Float:blahy, Float:blahz;
			HeadshotCheck(playerid, blahx, blahy, blahz);
	        return 1;
	    }
		return 1;
 	}
	return 1;
}