rng = irandom(7);
if instance_number(obj_enemy_base) < 11
   {
   if rng < 4
      {
      instance_create(x,y,obj_enemy_buzzsaw);
      spawned = 1;
      }
   if rng = 4
      {
      if global.level > 1
         {
         instance_create(x,y,obj_enemy_beamer);
         spawned = 1;
         }
      }
   if rng = 5
      {
      if global.level > 2
         {
         instance_create(x,y,obj_enemy_nova);
         spawned = 1;
         }
      }
   if rng = 6
      {
      if global.level > 3
         {
         instance_create(x,y,obj_enemy_drain);
         spawned = 1;
         }
      }
   if rng = 7
      {
      if global.level > 4
         {
         instance_create(x,y,obj_enemy_mother);
         spawned = 1;
         }
      }
   if spawned = 1
      {
      spawned = 0
      }
   }
alarm[0] = ceil(300/global.level)