AddCoins

//Since these are zones, we just need to pick a random one and add coins

//Variables
var i, s, xx, yy;

//Pick a random zone
i = round(random(instance_number(OBJECT_ZONE)-1))+1;

//Now get the zone's id
i = instance_find(OBJECT_ZONE,i);

//Also get the zone's radius size
s = sprite_get_width(OBJECT.ZONE.sprite_index)/2;

//Now create a coin randomly in the zone

//First, start the infinite loop to keep checking if the position is free
while(1)
{
    //Get a random position
    xx = i.x-s+random(s*2);
    yy = i.y-s+random(s*2);

    //Loop through all the coins and see if any are too close to the point
    for(i=0; i!=instance_number(OBJECT_ZONE); i += 1)
    {
        with(instance_find(OBJECT_ZONE,i))
        {
            //Check if it's too close
            if point_distance(x,y,xx,yy)<=other.s
            break; //Leave this loop and try again
            else //If it isn't..
            {
                instance_create(xx,yy,OBJECT_COIN);
                exit;
                //All done!
            }
        }
    }
}