How can I make a command that activates when a certain entity has been destroyed?
I'm making a map where you go around destroying ender crystals. When you destroy an ender crystal, I want a command block chain to activate. Each individual crystal has a different command block chain.
But I don't want any redstone right next to a crystal. Is there some command I can use to accomplish this?
Best Answer
There are two ways of doing this. One is easy, but has the potential to bug out. The other is a lot more complicated but can be done.
First off, you can use a testfor command to check for the endercrystal, and run a repeater from the command block directly into a NOT-gate. Be aware that redstone isn't always the most stable thing. I've had this setup bug out on me in the spawn chunks of a Spigot server before, so it carries the potential to stop working until the redstone is updated.
The second method involves using a command block to test for the entities, then setting the output to an objective through the /stats command. When the objective reaches zero, you can activate your command blocks.
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3 Deadly Command Blocks (Minecraft PE)
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