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I'm making my first zombie game in the Blender Game Engine. It is a first-person-shooter style game with zombies and stuff like that.

I am having trouble making an enemy spawner for the zombies however. I got it working somewhat before but after a certain amount of time the zombies just start to stack up on top of each other because I cannot get it to only spawn the zombies at the start of the game and after one dies. I changed it up some but now they don't spawn at all.

It really would be nice to have zombies spawn randomly within a specific area of the game but far away from the player. I don't know how to code in python so I'm making my game only with logic bricks. I have an empty currently that is supposed to spawn the zombies but it doesn't work.

Can you please help? You can download the game here: Undead Fields

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  • $\begingroup$ making a game only with logic bricks will be quite hard and challenging. $\endgroup$ – Tooniis Jul 22 '17 at 5:53
  • $\begingroup$ Luckily I've gotten pretty far over the past few days! I'm sure there's a way. I just dont know how. With a recent version I was able to get a spawner working pretty well. It would spawn a zombie if the player was far away and if there were no zombies by it. I however would prefer something that would detect if there was a max amount of zombies on screen and if not it would fill in for the extras by putting them in a random place in a set zone. If I need a script for this that's fine, as long as it's a copy/paste sort of thing. $\endgroup$ – Caden Mitchell Jul 22 '17 at 7:45
  • $\begingroup$ I also think you will find a way with logic bricks but you may want to learn using scripts because they will make your work much easier. GL $\endgroup$ – Tooniis Jul 22 '17 at 7:47
  • $\begingroup$ Is there a sensor to detect a max amount of objects? I would really probably only need that and it might work. $\endgroup$ – Caden Mitchell Jul 22 '17 at 7:49
  • $\begingroup$ I keep getting this error in the console Warning, object "Empty.014" from AddObject actuator "Edit Object" is not in a hidden layer. even after moving that object to a hidden layer $\endgroup$ – Tooniis Jul 22 '17 at 8:40
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As non-python solution I suggest following:

  1. create an action with location keys. Each frame the action should contain a single spawn position. e.g frame 1 = position 1, frame 2 = position 2 ...

  2. when you want to spawn an enemy

    2.a. create an random integer number in a property via random actuator.

    2.b you play the action frame at the emitter (empty) via Action Actuator in property mode (using the random property).

    2.c with a collision/ray/near/radar sensor check if the spawn point is empty. If so add an enemy and continue with 2. If not continue with 2.a

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