CEG For Units
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Creating Custom Explosion Generators (CEGs) and using them with Units in Spring, via COB, is quite easy. This tutorial will show you how to do so.
Step 1: Link your CEGs to your Unit.
CEGs need to be linked to a Unit's data to be generated via COB.
To do so, create a section in your Unit's TDF like this:
This tells Spring that the CEG called MyNiftyExplosionGenerator is attached to this Unit, and allows COB to call it. If you have more than one, then the next one uses a 1 instead of a 0, e.g. ExplosionGenerator1=custom:MyNiftyExplosionGenerator; ... and so forth.
Step 2: Calling the CEG via COB
The easiest way to do this is to use a #DEFINE statement, using the appropriate number for the type of Explosion you want to invoke. So, what I typically do is put in lines at the start of the COB, like this:
#DEFINE MyNiftyExplosionGenerator 1024+0
This means that, wherever in the COB I call MyNiftyExplosionGenerator, Spring will call the appropriate CEG.
To actually call the CEG, just use the following:
emit-sfx MyNiftyExplosionGenerator from PieceName;
It's just that simple :-) Just make darn sure you've gotten everything right before you use this, or you will cause to Spring to crash!