def setupPhysics(self):
# setting up physics world and parent node path
self.physics_world_ = BulletWorld()
self.world_node_ = self.render.attachNewNode('world')
self.cam.reparentTo(self.world_node_)
self.physics_world_.setGravity(Vec3(0, 0, -9.81))
self.debug_node_ = self.world_node_.attachNewNode(BulletDebugNode('Debug'))
self.debug_node_.node().showWireframe(True)
self.debug_node_.node().showConstraints(True)
self.debug_node_.node().showBoundingBoxes(True)
self.debug_node_.node().showNormals(True)
self.physics_world_.setDebugNode(self.debug_node_.node())
self.debug_node_.hide()
# setting up ground
self.ground_ = self.world_node_.attachNewNode(BulletRigidBodyNode('Ground'))
self.ground_.node().addShape(BulletPlaneShape(Vec3(0, 0, 1), 0))
self.ground_.setPos(0,0,0)
self.ground_.setCollideMask(BitMask32.allOn())
self.physics_world_.attachRigidBody(self.ground_.node())
self.object_nodes_ = []
self.controlled_objects_=[]
num_boxes = 20
side_length = 0.2
size = Vec3(0.5*side_length,0.5*side_length,0.5*side_length)
start_pos = Vec3(-num_boxes*side_length,0,6)
# creating boxes
box_visual = loader.loadModel('models/box.egg')
box_visual.clearModelNodes()
box_visual.setTexture(loader.loadTexture('models/wood.png'))
#box_visual.setRenderModeWireframe()
bounds = box_visual.getTightBounds() # start of box model scaling
extents = Vec3(bounds[1] - bounds[0])
scale_factor = side_length/max([extents.getX(),extents.getY(),extents.getZ()])
box_visual.setScale((scale_factor,scale_factor ,scale_factor)) # end of box model scaling
for i in range(0,20):
self.addBox("name %i"%(i),size,start_pos + Vec3(i*side_length,0,0),box_visual)
start_pos = Vec3(-num_boxes*side_length,0,8)
for i in range(0,20):
self.addBox("name %i"%(i),size,start_pos + Vec3(i*2*side_length,0,0),box_visual)
# creating sphere
diameter = 0.4
sphere_visual = loader.loadModel('models/ball.egg')
bounds = sphere_visual.getTightBounds() # start of model scaling
extents = Vec3(bounds[1] - bounds[0])
scale_factor = diameter/max([extents.getX(),extents.getY(),extents.getZ()])
sphere_visual.clearModelNodes()
sphere_visual.setScale(scale_factor,scale_factor,scale_factor) # end of model scaling
sphere_visual.setTexture(loader.loadTexture('models/bowl.jpg'))
sphere = self.world_node_.attachNewNode(BulletRigidBodyNode('Sphere'))
sphere.node().addShape(BulletSphereShape(0.5*diameter))
sphere.node().setMass(1.0)
sphere.node().setLinearFactor((1,0,1))
sphere.node().setAngularFactor((0,1,0))
sphere.setCollideMask(BitMask32.allOn())
sphere_visual.instanceTo(sphere)
sphere.setPos(Vec3(0,0,size.getZ()+1))
self.physics_world_.attachRigidBody(sphere.node())
self.object_nodes_.append(sphere)
self.controlled_objects_.append(sphere)
# creating mobile box
size = Vec3(0.2,0.2,0.4)
mbox_visual = loader.loadModel('models/box.egg')
bounds = mbox_visual.getTightBounds()
extents = Vec3(bounds[1] - bounds[0])
scale_factor = 1/max([extents.getX(),extents.getY(),extents.getZ()])
mbox_visual.setScale(size.getX()*scale_factor,size.getY()*scale_factor,size.getZ()*scale_factor)
mbox = self.world_node_.attachNewNode(BulletRigidBodyNode('MobileBox'))
mbox.node().addShape(BulletBoxShape(size/2))
mbox.node().setMass(1.0)
mbox.node().setLinearFactor((1,0,1))
mbox.node().setAngularFactor((0,1,0))
mbox.setCollideMask(BitMask32.allOn())
mbox_visual.instanceTo(mbox)
mbox.setPos(Vec3(1,0,size.getZ()+1))
self.physics_world_.attachRigidBody(mbox.node())
self.object_nodes_.append(mbox)
self.controlled_objects_.append(mbox)
self.setupLevel()
# Nodepath test
np = NodePath('testnode0')
print('Created Nodepath to node %s'%(np.getName()))
np.clear()
#np.attachNewNode(PandaNode('testnode1'))
np.__init__(PandaNode('testnode1'))
print('Attached new node %s to empty Nodepath'%(np.getName()))
