Swat cannon by verlaj

new firedcannon[MAX_PLAYERS];

stock randomEx(min, max)
{
    new rand9 = random(max-min)+min;
    return rand9;
}//credits to yless

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
if(newkeys == KEY_FIRE)
    {
        if(GetVehicleModel(GetPlayerVehicleID(playerid)) == 601)
        {
            if(firedcannon[playerid] == 0)
            {
                firedcannon[playerid] = 1;
                SetTimerEx("cannonfired", 1000, false,"i",playerid);
                new
                Float:x8, Float:y8, Float:z8,
                Float:x2, Float:y2, Float:z2,
                Float:x7, Float:y7, Float:z7,
                Float:object_x, Float:object_y, Float:object_z;
                GetPlayerPos(playerid,x7,y7,z7);
                GetPlayerCameraPos(playerid, x8,y8,z8);
                GetPlayerCameraFrontVector(playerid, x2,y2,z2);


                new sa = randomEx(30, 100);

                object_x = x8 + floatmul(x2, sa);
                object_y = y8 + floatmul(y2, sa);
                object_z = z8 + floatmul(z2, sa);
                foreach (new i : Player)
                {
					if(IsPlayerInRangeOfPoint(i,20,x7,y7,z7))
     				{
	     				GetPlayerPos(i,x7,y7,z7);
	     				if(GetPlayerCameraFrontVector(playerid, x7,y7,z7))
	     				{
	     					CreateExplosion(x7,y7,z7, 12, 5.0);
	     				}
     				}
     				else CreateExplosion(object_x, object_y, object_z+3, 12, 5.0);

                }

			}
   		}
	}
	return 1;
}

forward cannonfired(playerid);
public cannonfired(playerid)
{
    firedcannon[playerid] = 0;
    return 1;
}