generic bouncing code

This code has been declared by its author to be Public Domain code.

generic bouncing code by DarkEagle

2003

set up collisions and then use this code with your entity :)

For i = 1 To CountCollisions(entity)
	; Calculate bounce: 

	; Get the normal of the surface collided with. 
	Nx# = CollisionNX#(entity, i) 
	Ny# = CollisionNY#(entity, i) 
	Nz# = CollisionNZ#(entity, i) 
	
	; Compute the dot product of the ball's motion vector and the normal of the surface collided with. 
	VdotN# = xvel#*Nx# + yvel#*Ny# + zvel#*Nz# 
	
	; Calculate the normal force. 
	NFx# = -2.0 * Nx# * VdotN# 
	NFy# = -2.0 * Ny# * VdotN# 
	NFz# = -2.0 * Nz# * VdotN# 
	
	; Add the normal force to the motion vector. 
	xvel#=(xvel# + NFx#)*bounce#
	yvel#=(yvel# + NFy#)*bounce#
	zvel#=(zvel# + NFz#)*bounce#
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Comments

Jams

2006

Fantastic :)

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