# Name: Speed Emitter
# Description: Creates particles  based on the speed of an object.
# Author 	: Brandon Young
# Date 		: September 12th 2008
# Version	: 1.0s
#---------------------------------------


#--------------------------------------------------
# Function: onSimulationBegin 
#--------------------------------------------------

def onSimulationBegin():
	emitter = scene.getEmitter("Circle01")
	emitter.setParameter("Speed" ,0.0)




#--------------------------------------------------
# Function: onSimulationStep 
#--------------------------------------------------

def onSimulationStep():
	emitVel = .1
	emitter = scene.getEmitter("Circle01")
	object = scene.getObject("Sphere01")# dont use a null object  doesnt work.
	objVel = object.getVelocity().module()
	if objVel > emitVel:
		emitter.setParameter("Speed", 2.0*objVel)
	else:
		emitter.setParameter("Speed", 0.0)




#--------------------------------------------------
# Function: onSimulationFrame 
#--------------------------------------------------

def onSimulationFrame():
	pass




#--------------------------------------------------
# Function: onSimulationEnd 
#--------------------------------------------------

def onSimulationEnd():
	pass




#--------------------------------------------------
# Function: onChangeToFrame 
#--------------------------------------------------

def onChangeToFrame():
	pass