1 способ:
в create:Код
alarm[0] = room_speed*2
alarm_count = 0
в alarm[0]Код
instance_create(x,y,obj)
if(alarm_count<9){
alarm[0] = room_speed*2
alarm_count +=1
}
2 способ:
в create:Код
timer = 0
alarm_count = 0
в step:Код
timer +=1
if(timer >= room_speed*2 and alarm_count > 9){
instance_create(x,y,obj)
timer = 0
alarm_count +=1
}
какой удобнее решать тебе