*** empty log message ***

direct/src/particles/Forces.py

@@ -0,0 +1,62 @@
+from PandaObject import *
+from DirectObject import *
+from PhysicsManagerGlobal import *
+
+import ForceNode
+
+class Forces(DirectObject):
+
+    forceNum = 1
+
+    def __init__(self, name = None):
+	"""__init__(self)"""
+
+	if (name == None):
+	    self.name = 'Forces-%d' % forceNum
+	    forceNum = forceNum + 1
+	else:
+	    self.name = name
+
+ 	self.node = ForceNode.ForceNode(self.name)
+	self.nodePath = hidden.attachNewNode(self.node)
+
+    def addForce(self, force):
+	"""addForce(self, force)"""
+	self.node.addForce(force)
+
+    def removeForce(self, force):
+	"""removeForce(self, force)"""
+	self.node.removeForce(force)
+
+    def enable(self):
+	"""enable(self)"""
+	for i in self.node.getNumForces():
+	    f = self.node.getForce(i)
+	    if (f.isLinear() == 1):
+		physicsManager.addLinearForce(f)
+	    else:
+		physicsManager.addAngularForce(f)
+
+    def disable(self):
+	"""disable(self)"""
+	for i in self.node.getNumForces():
+	    f = self.node.getForce(i)
+	    if (f.isLinear() == 1):
+		physicsManager.removeLinearForce(f)
+	    else:
+		physicsManager.removeAngularForce(f)
+
+    def __getItem__(self, index):
+	"""__getItem__(self, index)"""
+	return self.node.getForce(index)
+
+    def __len__(self):
+	"""__len__(self)"""
+	return self.node.getNumForces()
+
+    def __asList__(self):
+	"""__asList__(self)"""
+	l = []
+	for i in self.node.getNumForces():
+	    l.append(self.node.getForce(i))
+	return l

direct/src/particles/ParticleEffect.py

@@ -1,84 +1,41 @@
 from PandaObject import *
 from DirectObject import *
-from ParticleManagerGlobal import *
-from PhysicsManagerGlobal import *
-from TaskManagerGlobal import *
 
 import Particles
-import ForceNode
-import PhysicalNode
-import ClockObject
+import Forces
 
-globalClock = ClockObject.ClockObject.getGlobalClock()
+class ParticleEffect(NodePath):
+    def __init__(self, nodePath):
+	"""__init__(self, nodePath)"""
+	NodePath.__init__(self)
+	self.assign(nodePath)
+	self.name = self.getName()
 
-class ParticleEffect(DirectObject):
-    def __init__(self, name):
-	"""__init__(self, name)"""
-	
-	self.name = name
-	self.activated = 0
-	self.particleDict = {}
+	self.forces = []
 
-	self.forceNode = ForceNode.ForceNode()
-	self.forceNodePath = hidden.attachNewNode(self.forceNode)
+	self.particles = []
+	self.addParticles(Particles.Particles())
 
-	self.physicalNode = PhysicalNode.PhysicalNode()
-	self.physicalNodePath = hidden.attachNewNode(self.physicalNode)
+    def addForces(self, forces):
+	"""addForces(self, forces)"""
+	forces.nodePath.reparentTo(self)
+	self.forces.append(forces)
 
-    def addLinearForce(self, force):
-	"""addLinearForce(self, force)"""
-	self.forceNode.addForce(force)
-	physicsMgr.addLinearForce(force) 
+    def addParticles(self, part):
+	"""addParticles(self, part)"""
+	part.nodePath.reparentTo(self)
+	self.particles.append(part)
 
-    def removeLinearForce(self, force):
-	"""removeLinearForce(self, force)"""
-	physicsMgr.removeLinearForce(force)
-	self.forceNode.removeForce(force)
+    def enable(self):
+	"""enable(self)"""
+	for f in self.forces:
+	    f.enable()
+	for p = self.particles:
+	    p.enable()
 
-    def addAngularForce(self, force):
-	"""addAngularForce(self, force)"""
-	self.forceNode.addForce(force)
-	physicsMgr.addAngularForce(force)
-
-    def removeAngularForce(self, force):
-	"""removeAngularForce(self, force)"""
-	physicsMgr.removeAngularForce(force)
-	self.forceNode.removeForce(force)
-
-    def addParticles(self, particles):
-	"""addParticles(self, particles)"""
-	self.particleDict[particles.name] = particles
-	self.physicalNode.addPhysical(particles)
-	physicsMgr.attachPhysical(particles)
-	particleMgr.attachParticlesystem(particles)
-
-    def removeParticles(self, particles):
-	"""removeParticles(self, particles)"""
-	particleMgr.removeParticlesystem(particles)	
-	physicsMgr.removePhysical(particles)
-	self.physicalNode.removePhysical(particles)
-	self.particleDict[particles.name] = None
-
-    def activate(self):
-	"""activate(self)"""
-	if (self.activated == 0):
-	    self.activated = 1
-	    self.forceNodePath.reparentTo(render)
-	    self.physicalNodePath.reparentTo(render)
-	    taskMgr.spawnTaskNamed(Task.Task(self.__update), 
-					self.name + '-update')
-
-    def deactivate(self):
-	"""deactivate(self)"""
-	if (self.activated == 1):
-	    self.activated = 0
-	    taskMgr.removeTasksNamed(self.name + '-update')
-	    self.forceNodePath.reparentTo(hidden)
-	    self.physicalNodePath.reparentTo(hidden)
-
-    def __update(self, state):
-	"""__update(self, state)"""
-	dt = min(globalClock.getDt(), 0.1)
-   	physicsMgr.doPhysics(dt)
-	particleMgr.doParticles(dt)
-	return Task.cont
+    def disable(self):
+	"""disable(self)"""
+	for f = self.forces:
+	    f.disable()
+	for p = self.particles:
+	    p.disable()

direct/src/particles/Particles.py

@@ -1,4 +1,6 @@
 from PandaObject import *
+from ParticleManagerGlobal import *
+from PhysicsManagerGlobal import *
 
 import ParticleSystem
 import BaseParticleFactory
@@ -29,15 +31,26 @@ SparkleParticleRenderer.SparkleParticleRenderer.SPSCALE = 1
 
 class Particles(ParticleSystem.ParticleSystem):
 
-    def __init__(self, name, poolSize = 1024):
-	"""__init__(self)"""
+    particleNum = 1
 
-	self.name = name
+    def __init__(self, name = None, poolSize = 1024):
+	"""__init__(self, name, poolSize)"""
+
+	if (name == None):
+	    self.name = 'particles-%d' % particleNum
+	    particleNum = particleNum + 1
+	else:
+	    self.name = name
 	ParticleSystem.ParticleSystem.__init__(self, poolSize)
 	self.setBirthRate(0.02)
 	self.setLitterSize(10)
 	self.setLitterSpread(0)
-	self.setRenderParent(render.node())
+
+	# Set up a physical node
+	self.node = PhysicalNode.PhysicalNode(self.name)
+	self.nodePath = hidden.attachNewNode(self.node)
+	self.setRenderParent(self.node)
+	self.node.addPhysical(self)
 
 	self.factory = None 
 	self.factoryType = "undefined"
@@ -49,6 +62,16 @@ class Particles(ParticleSystem.ParticleSystem):
 	self.emitterType = "undefined"
 	self.setEmitter("SphereVolumeEmitter")
 
+    def enable(self):
+	"""enable(self)"""
+	physicsMgr.attachPhysical(self.node)
+	particleMgr.attachParticlesystem(self)
+
+    def disable(self):
+	"""disable(self)"""
+	physicsMgr.removePhysical(self.node)
+	particleMgr.removeParticlesystem(self)
+
     def setFactory(self, type):
 	"""setFactory(self, type)"""
 	if (self.factoryType == type):
@@ -170,6 +193,7 @@ class Particles(ParticleSystem.ParticleSystem):
 	    targ = 'p'
 	    file.write('from Particles import *\n')
 	    file.write('p = Particles(\'' + self.name + '\')\n')
+	    file.write('self.enable()\n')
 	file.write('# Particles parameters\n')
 	file.write(targ + '.setFactory(\"' + self.factoryType + '\")\n')
 	file.write(targ + '.setRenderer(\"' + self.rendererType + '\")\n')

direct/src/showbase/ShowBase.py

@@ -7,11 +7,15 @@ from EventManagerGlobal import *
 from PythonUtil import *
 from ParticleManagerGlobal import *
 from PhysicsManagerGlobal import *
+
 import Task
 import EventManager
 import math
 import sys
 import LinearEulerIntegrator
+import ClockObject
+
+globalClock = ClockObject.ClockObject.getGlobalClock()
 
 class ShowBase:
 
@@ -106,11 +110,20 @@ class ShowBase:
 
         self.taskMgr = taskMgr
 
+	# Particle manager
 	self.particleMgr = particleMgr
 	self.particleMgr.setFrameStepping(1)
+	self.particleMgrEnabled = 0 
+
+	# Physics manager
 	self.physicsMgr = physicsMgr
 	self.integrator = LinearEulerIntegrator.LinearEulerIntegrator()
 	self.physicsMgr.attachLinearIntegrator(self.integrator)
+	self.physicsMgrEnabled = 0
+
+	# Spawn the update managers task
+	self.taskMgr.spawnTaskNamed(Task.Task(self.__updateManagers),
+					'manager-update')
 
         self.createAudioManager()
         self.createRootPanel()
@@ -118,6 +131,20 @@ class ShowBase:
 
         self.restart()
 
+    def enableParticles(self, flag = 1):
+	"""enableParticles(self, flag)"""
+	self.particleMgrEnabled = flag
+	self.physicsMgrEnabled = flag
+
+    def __updateManagers(self, state):
+	"""__updateManagers(self)"""
+	dt = min(globalClock.getDt(), 0.1)
+	if (self.particleMgrEnabled == 1):
+	    self.particleMgr.doParticles(dt)
+	if (self.physicsMgrEnabled == 1):
+	    self.physicsMgr.doPhysics(dt)	
+	return Task.cont
+
     def createStats(self):
         # You must specify a pstats-host in your configrc
         # The default is localhost

direct/src/tkpanels/ParticlePanel.py

@@ -675,9 +675,9 @@ class ParticlePanel(AppShell):
         self.getWidget('System', 'Litter Spread').set(litterSpread, 0)
         systemLifespan = self.particles.getSystemLifespan()
         self.getWidget('System', 'Lifespan').set(systemLifespan, 0)
-        pos = self.particleEffect.physicalNodePath.getPos()
+        pos = self.particles.nodePath.getPos()
         self.getWidget('System', 'Pos').set([pos[0], pos[1], pos[2]], 0)
-        hpr = self.particleEffect.physicalNodePath.getHpr()
+        hpr = self.particles.nodePath.getHpr()
         self.getWidget('System', 'Hpr').set([hpr[0], hpr[1], hpr[2]], 0)
         self.systemLocalVelocity.set(self.particles.getLocalVelocityFlag())
         self.systemGrowsOlder.set(self.particles.getSystemGrowsOlderFlag())
@@ -696,9 +696,9 @@ class ParticlePanel(AppShell):
     def toggleSystemGrowsOlder(self):
 	self.particles.setSystemGrowsOlderFlag(self.systemGrowsOlder.get())
     def setSystemPos(self, pos):
-	self.particleEffect.physicalNodePath.setPos(Vec3(pos[0], pos[1], pos[2]))
+	self.particles.nodePath.setPos(Vec3(pos[0], pos[1], pos[2]))
     def setSystemHpr(self, pos):
-	self.particleEffect.physicalNodePath.setHpr(Vec3(pos[0], pos[1], pos[2]))
+	self.particles.nodePath.setHpr(Vec3(pos[0], pos[1], pos[2]))
 
     ## FACTORY PAGE ##
     def selectFactoryType(self, type):