def __setupGravity(self):
base.particlesEnabled = True
base.enableParticles()
gravityFN=ForceNode('world-forces')
gravityFNP=render.attachNewNode(gravityFN)
gravityForce=LinearVectorForce(0,0,-6) #gravity acceleration ft/s^2
gravityFN.addForce(gravityForce)
base.physicsMgr.addLinearForce(gravityForce)
def __setupGravity(self):
base.particlesEnabled = True
base.enableParticles()
gravityFN = ForceNode('world-forces')
gravityFNP = render.attachNewNode(gravityFN)
gravityForce = LinearVectorForce(0, 0,
-6) #gravity acceleration ft/s^2
gravityFN.addForce(gravityForce)
base.physicsMgr.addLinearForce(gravityForce)
def perturb(self, force, time=1000, backToColor=None):
print "perturbing %s, %s"%(force, time)
node1 = self._node1
node2 = self._node2
actor1 = self._actor1
actor2 = self._actor2
self._timeOut = globalClock.getLongTime() + time/1000
force2 = node2.getRelativeVector( node1, force)
force2 = Vec3( -1*force2.x, -1*force2.y, -1*force2.z)
forceN1 = ForceNode('Impulse1')
lvf1 = LinearVectorForce( force )
lvf1.setMassDependent(1)
forceN1.addForce(lvf1)
node1.attachNewNode(forceN1)
actor1.getPhysical(0).addLinearForce(lvf1)
forceN2 = ForceNode("Impulse2")
lvf2 = LinearVectorForce( force2)
lvf2.setMassDependent(1)
forceN2.addForce(lvf2)
node2.attachNewNode(forceN2)
actor2.getPhysical(0).addLinearForce(lvf2)
self._impulse1 = lvf1
self._impulse2 = lvf2
if backToColor:
self._backToColor = backToColor
def __init__(self, name=None):
"""__init__(self)"""
if (name == None):
self.name = 'ForceGroup-%d' % ForceGroup.id
ForceGroup.id += 1
else:
self.name = name
self.node = ForceNode.ForceNode(self.name)
self.nodePath = NodePath(self.node)
self.fEnabled = 0
self.particleEffect = None