# The bööm resource

The boom resource is used to customize the various explosion types. Nova supports up to 64 different explosion types. The graphics for the explosions are loaded from spïn resources 400-463, the sounds are loaded from snd resources 300-363, and the behavior of each explosion type is contained within bööm resources 128-191. Each bööm resource contains three fields:

1 | FrameAdvance | The rate at which the explosion will animate - a value of 100 will cause each frame of the explosion to appear for exactly one frame of the game animation, and lower values will stretch out the explosion animation and make it stay onscreen longer.
2 | SoundIndex | The ID (300-363) of the explosion sound to associate with this explosion type, or -1 for a silent explosion.
3 | GraphicIndex | The ID (400-463) of the explosion graphic (spïn resource) to associate with this explosion type.

Based upon the EV Nova Resource Bible by Matt Burch, ©1995-2006 by Ambrosia Software, Inc.