def __init__(self, world, parent, color, pos, dir, radius, density, posParent=None):
GameObject.__init__(self, world)
self.color = makeVec4Color(color)
self.scale = radius
self.collisionCount = 0
diameter = 2 * radius
length = 1.815 * diameter
self.node = parent.attachNewNode("")
if posParent == None:
self.node.setPos(*pos)
else:
self.node.setPos(posParent, *pos)
self.node.setColorScale(self.color)
self.node.setTransparency(TransparencyAttrib.MAlpha)
self.node.setScale(radius)
self.node.lookAt(self.node, *dir)
self.node.setHpr(self.node.getHpr() + Vec3(0, 270, 0))
self.model = loader.loadModel("models/bullet.egg")
self.model.reparentTo(self.node)
self.model.setPos(-0.1, -0.1, 0.15)
self.model.setScale(0.4)
self.mass = OdeMass()
self.mass.setCylinder(density, 3, radius, length)
self.body = OdeBody(world.world)
self.body.setMass(self.mass)
self.body.setPosition(self.node.getPos())
self.body.setQuaternion(self.node.getQuat())
self.body.setData(self)
self.body.setGravityMode(False)
self.geom = OdeCylinderGeom(world.space, radius, length)
self.geom.setBody(self.body)
world.space.setSurfaceType(self.geom, world.surfaces["bullet"])
# Adjust collision bitmasks.
self.geom.setCategoryBits(GameObject.bitmaskBullet)
self.geom.setCollideBits(GameObject.bitmaskAll & ~GameObject.bitmaskCharacter)
# Keep the bullet hidden for a split second so it doesn't appear too close to the camera.
self.node.hide()
taskMgr.doMethodLater(0.1, self.showTask, 'show-bullet')
