def __start_view_transition(self, dest_view, quat):
self._dest_view = dest_view
lerp_interval = LerpQuatInterval(self.cam.target, .5, quat,
blendType="easeInOut")
self._lerp_interval = lerp_interval
lerp_interval.start()
self._transition_done = False
Mgr.add_task(self.__transition_view, "transition_view", sort=30,
uponDeath=self.__adjust_transition_hpr)
Mgr.do("start_view_gizmo_transition")
def __reset_view(self, to_default=True, transition=False):
""" Make the Home view the current view """
cam = self.cam
lerp_view_gizmo = False
if to_default:
if transition and self.is_front_custom:
lerp_view_gizmo = True
gizmo_root = Mgr.get("view_gizmo_root")
hpr = gizmo_root.get_hpr()
self.__reset_front_view(transition=False, reset_roll=False)
self.__reset_home_view()
Mgr.update_app("active_grid_plane", self.default_grid_plane)
GlobalData["render_mode"] = self.default_render_mode
Mgr.update_app("render_mode")
if lerp_view_gizmo:
gizmo_root.set_hpr(hpr)
current_quat = cam.target.get_quat()
pos = self.home_pos
quat = self.home_quat
zoom = self.home_zoom
almost_same_zoom = Vec3(0., zoom, 0.) == Vec3(0., cam.zoom, 0.)
def_front_quat = self.default_front_quat
if current_quat.almost_same_direction(quat, .000001) \
and cam.pivot.get_pos() == pos and almost_same_zoom:
if lerp_view_gizmo:
gizmo_interval = LerpQuatInterval(gizmo_root, .5, def_front_quat, blendType="easeInOut")
self._lerp_interval = gizmo_interval
gizmo_interval.start()
Mgr.add_task(self.__transition_view, "transition_view", sort=30,
uponDeath=self.__adjust_transition_hpr)
Mgr.do("start_view_gizmo_transition")
self._dest_view = "home"
self._transition_done = False
return
if transition:
lerp_interval = self.reset_interval
if lerp_view_gizmo:
gizmo_interval = LerpQuatInterval(gizmo_root, .5, def_front_quat, blendType="easeInOut")
lerp_interval.append(gizmo_interval)
self._lerp_interval = lerp_interval
lerp_interval.start()
Mgr.add_task(self.__transition_view, "transition_view", sort=30,
uponDeath=self.__adjust_transition_hpr)
Mgr.do("start_view_gizmo_transition")
self._dest_view = "home"
self._transition_done = False
else:
cam.pivot.set_pos(pos)
cam.target.set_quat(quat)
cam.zoom = zoom
Mgr.do("update_transf_gizmo")
Mgr.do("update_coord_sys")
Mgr.do("update_zoom_indicator")
Mgr.do("update_view_gizmo")
if GlobalData["coord_sys_type"] == "screen":
Mgr.get("selection").update_transform_values()
class CrashWalker(DirectObject.DirectObject):
notify = directNotify.newCategory("CrashWalker")
wantDebugIndicator = ConfigVariableBool('want-avatar-physics-indicator', False)
wantFloorSphere = ConfigVariableBool('want-floor-sphere', False)
earlyEventSphere = ConfigVariableBool('early-event-sphere', False)
DiagonalFactor = math.sqrt(2.) / 2.
# special methods
def __init__(self, gravity = 64.348, standableGround=0.707,
hardLandingForce=16.0, legacyLifter=False):
assert self.notify.debugStateCall(self)
DirectObject.DirectObject.__init__(self)
self.__gravity=gravity
self.__standableGround=standableGround
self.__hardLandingForce=hardLandingForce
self._legacyLifter = legacyLifter
self.mayJump = 1
self.jumpDelayTask = None
self.controlsTask = None
self.indicatorTask = None
self.falling = 0
self.needToDeltaPos = 0
self.physVelocityIndicator=None
self.avatarControlForwardSpeed=0
self.avatarControlJumpForce=0
self.getAirborneHeight=None
self.upRay = None
self.upRayNodePath = None
self.upEveHandl = None
self.priorParent=Vec3(0)
self.__oldPosDelta=Vec3(0)
self.__oldDt=0
self.moving=0
self.lastSpeed = 0.0
self.lastCamNodeH = 0.0
self.speed=0.0
self.rotationSpeed=0.0
self.slideSpeed=0.0
self.vel=Vec3(0.0)
self.collisionsActive = 0
self.switchDirLerp = None
self.currentDirection = Direction.Null
self.currOtherDir = Direction.Null
self.isAirborne = 0
self.highMark = 0
def setWalkSpeed(self, forward, jump, foo = 0.0, bar = 0.0):
assert self.notify.debugStateCall(self)
self.avatarControlForwardSpeed=forward
self.avatarControlJumpForce=jump
def getSpeeds(self):
#assert self.debugPrint("getSpeeds()")
return (self.speed, 0.0, 0.0)
def getIsAirborne(self):
return self.isAirborne
def setAvatar(self, avatar):
self.avatar = avatar
if avatar is not None:
pass # setup the avatar
def setupRay(self, bitmask, floorOffset, reach):
assert self.notify.debugStateCall(self)
# This is a ray cast from your head down to detect floor polygons.
# This ray start is arbitrarily high in the air. Feel free to use
# a higher or lower value depending on whether you want an avatar
# that is outside of the world to step up to the floor when they
# get under valid floor:
self.cRay = CollisionRay(0.0, 0.0, CollisionHandlerRayStart, 0.0, 0.0, -1.0)
cRayNode = CollisionNode('GW.cRayNode')
cRayNode.addSolid(self.cRay)
self.cRayNodePath = self.avatarNodePath.attachNewNode(cRayNode)
cRayNode.setFromCollideMask(bitmask)
cRayNode.setIntoCollideMask(BitMask32.allOff())
self.upRay = CollisionRay(0.0, 0.0, 1.0, 0.0, 0.0, 1.0)
upRayNode = CollisionNode('GW.upRayNode')
upRayNode.addSolid(self.upRay)
self.upRayNodePath = self.avatarNodePath.attachNewNode(upRayNode)
upRayNode.setFromCollideMask(CIGlobals.EventBitmask)
upRayNode.setIntoCollideMask(BitMask32.allOff())
# set up floor collision mechanism
self.lifter = CollisionHandlerGravity()
#self.lifter = CollisionHandlerHighestEvent()
self.lifter.setLegacyMode(self._legacyLifter)
self.lifter.setGravity(self.__gravity)
self.lifter.addInPattern("enter%in")
self.lifter.addAgainPattern("again%in")
self.lifter.addOutPattern("exit%in")
self.lifter.setOffset(floorOffset)
self.lifter.setReach(reach)
self.upEveHandl = CollisionHandlerEvent()
self.upEveHandl.setInPattern("enter_overhead_%in")
self.upEveHandl.setOutPattern("exit_overhead_%in")
# Limit our rate-of-fall with the lifter.
# If this is too low, we actually "fall" off steep stairs
# and float above them as we go down. I increased this
# from 8.0 to 16.0 to prevent this
#self.lifter.setMaxVelocity(16.0)
self.lifter.addCollider(self.cRayNodePath, self.avatarNodePath)
#self.upEveHandl.addCollider(self.upRayNodePath, self.avatarNodePath)
def setupWallSphere(self, bitmask, avatarRadius):
"""
Set up the collision sphere
"""
assert self.notify.debugStateCall(self)
# This is a sphere on the ground to detect collisions with
# walls, but not the floor.
self.avatarRadius = avatarRadius
cSphere = CollisionSphere(0.0, 0.0, avatarRadius, avatarRadius)
cSphereNode = CollisionNode('GW.cWallSphereNode')
cSphereNode.addSolid(cSphere)
cSphereNodePath = self.avatarNodePath.attachNewNode(cSphereNode)
cSphereNode.setFromCollideMask(bitmask)
cSphereNode.setIntoCollideMask(BitMask32.allOff())
# set up collision mechanism
if config.GetBool('want-fluid-pusher', 0):
self.pusher = CollisionHandlerFluidPusher()
else:
self.pusher = CollisionHandlerPusher()
self.pusher.addCollider(cSphereNodePath, self.avatarNodePath)
self.cWallSphereNodePath = cSphereNodePath
def setupEventSphere(self, bitmask, avatarRadius):
"""
Set up the collision sphere
"""
assert self.notify.debugStateCall(self)
# This is a sphere a little larger than the wall sphere to
# trigger events.
self.avatarRadius = avatarRadius
cSphere = CollisionSphere(0.0, 0.0, avatarRadius-0.1, avatarRadius*1.04)
# Mark it intangible just to emphasize its non-physical purpose.
cSphere.setTangible(0)
cSphereNode = CollisionNode('GW.cEventSphereNode')
cSphereNode.addSolid(cSphere)
cSphereNodePath = self.avatarNodePath.attachNewNode(cSphereNode)
cSphereNode.setFromCollideMask(bitmask)
cSphereNode.setIntoCollideMask(BitMask32.allOff())
# set up collision mechanism
self.event = CollisionHandlerEvent()
self.event.addInPattern("enter%in")
self.event.addOutPattern("exit%in")
self.cEventSphereNodePath = cSphereNodePath
def setupFloorSphere(self, bitmask, avatarRadius):
"""
Set up the collision sphere
"""
assert self.notify.debugStateCall(self)
# This is a tiny sphere concentric with the wallSphere to keep
# us from slipping through floors.
self.avatarRadius = avatarRadius
cSphere = CollisionSphere(0.0, 0.0, avatarRadius, 0.01)
cSphereNode = CollisionNode('GW.cFloorSphereNode')
cSphereNode.addSolid(cSphere)
cSphereNodePath = self.avatarNodePath.attachNewNode(cSphereNode)
cSphereNode.setFromCollideMask(bitmask)
cSphereNode.setIntoCollideMask(BitMask32.allOff())
# set up collision mechanism
self.pusherFloorhandler = CollisionHandlerPusher()
self.pusherFloor.addCollider(cSphereNodePath, self.avatarNodePath)
self.cFloorSphereNodePath = cSphereNodePath
def setWallBitMask(self, bitMask):
self.wallBitmask = bitMask
def setFloorBitMask(self, bitMask):
self.floorBitmask = bitMask
def swapFloorBitMask(self, oldMask, newMask):
self.floorBitmask = self.floorBitmask &~ oldMask
self.floorBitmask |= newMask
if self.cRayNodePath and not self.cRayNodePath.isEmpty():
self.cRayNodePath.node().setFromCollideMask(self.floorBitmask)
def setGravity(self, gravity):
self.__gravity = gravity
self.lifter.setGravity(self.__gravity)
def getGravity(self, gravity):
return self.__gravity
def initializeCollisions(self, collisionTraverser, avatarNodePath,
avatarRadius = 1.4, floorOffset = 1.0, reach = 1.0):
"""
floorOffset is how high the avatar can reach. I.e. if the avatar
walks under a ledge that is <= floorOffset above the ground (a
double floor situation), the avatar will step up on to the
ledge (instantly).
Set up the avatar collisions
"""
assert self.notify.debugStateCall(self)
assert not avatarNodePath.isEmpty()
self.avatarNodePath = avatarNodePath
self.cTrav = collisionTraverser
self.setupRay(self.floorBitmask, floorOffset, reach)
self.setupWallSphere(self.wallBitmask, avatarRadius)
self.setupEventSphere(self.wallBitmask, avatarRadius)
if self.wantFloorSphere:
self.setupFloorSphere(self.floorBitmask, avatarRadius)
self.setCollisionsActive(1)
def setTag(self, key, value):
self.cEventSphereNodePath.setTag(key, value)
def setAirborneHeightFunc(self, unused_parameter):
assert self.notify.debugStateCall(self)
self.getAirborneHeight = self.lifter.getAirborneHeight
def getAirborneHeight(self):
assert self.notify.debugStateCall(self)
self.lifter.getAirborneHeight()
def setAvatarPhysicsIndicator(self, indicator):
"""
indicator is a NodePath
"""
assert self.notify.debugStateCall(self)
self.cWallSphereNodePath.show()
def deleteCollisions(self):
assert self.notify.debugStateCall(self)
del self.cTrav
self.cWallSphereNodePath.removeNode()
del self.cWallSphereNodePath
if self.wantFloorSphere:
self.cFloorSphereNodePath.removeNode()
del self.cFloorSphereNodePath
del self.pusher
# del self.pusherFloor
del self.event
del self.lifter
del self.getAirborneHeight
def setCollisionsActive(self, active = 1):
assert self.notify.debugStateCall(self)
if self.collisionsActive != active:
self.collisionsActive = active
# Each time we change the collision geometry, make one
# more pass to ensure we aren't standing in a wall.
self.oneTimeCollide()
# make sure we have a shadow traverser
base.initShadowTrav()
if active:
if 1:
# Please let skyler or drose know if this is causing a problem
# This is a bit of a hack fix:
self.avatarNodePath.setP(0.0)
self.avatarNodePath.setR(0.0)
self.cTrav.addCollider(self.cWallSphereNodePath, self.pusher)
if self.wantFloorSphere:
self.cTrav.addCollider(self.cFloorSphereNodePath, self.pusherFloor)
# Add the lifter to the shadow traverser, which runs after
# our traverser. This prevents the "fall through wall and
# off ledge" bug. The problem was that we couldn't control
# which collided first, the wall pusher or the lifter, if
# they're in the same collision traverser. If the lifter
# collided first, we'd start falling before getting pushed
# back behind the wall.
base.shadowTrav.addCollider(self.cRayNodePath, self.lifter)
base.shadowTrav.addCollider(self.upRayNodePath, self.upEveHandl)
if self.earlyEventSphere:
# If we want to trigger the events at the same
# time as we intersect walls (e.g. Toontown, for
# backward compatibility issues), add the event
# sphere to the main traverser. This allows us to
# hit door triggers that are just slightly behind
# the door itself.
self.cTrav.addCollider(self.cEventSphereNodePath, self.event)
else:
# Normally, we'd rather trigger the events after
# the pusher has had a chance to fix up our
# position, so we never trigger things that are
# behind other polygons.
base.shadowTrav.addCollider(self.cEventSphereNodePath, self.event)
else:
if hasattr(self, 'cTrav'):
self.cTrav.removeCollider(self.cWallSphereNodePath)
if self.wantFloorSphere:
self.cTrav.removeCollider(self.cFloorSphereNodePath)
self.cTrav.removeCollider(self.cEventSphereNodePath)
base.shadowTrav.removeCollider(self.cEventSphereNodePath)
base.shadowTrav.removeCollider(self.cRayNodePath)
base.shadowTrav.removeCollider(self.upRayNodePath)
def getCollisionsActive(self):
assert self.debugPrint("getCollisionsActive() returning=%s"%(
self.collisionsActive,))
return self.collisionsActive
def placeOnFloor(self):
"""
Make a reasonable effor to place the avatar on the ground.
For example, this is useful when switching away from the
current walker.
"""
assert self.notify.debugStateCall(self)
self.oneTimeCollide()
self.avatarNodePath.setZ(self.avatarNodePath.getZ()-self.lifter.getAirborneHeight())
def oneTimeCollide(self):
"""
Makes one quick collision pass for the avatar, for instance as
a one-time straighten-things-up operation after collisions
have been disabled.
"""
assert self.notify.debugStateCall(self)
if not hasattr(self, 'cWallSphereNodePath'):
return
self.isAirborne = 0
self.mayJump = 1
tempCTrav = CollisionTraverser("oneTimeCollide")
tempCTrav.addCollider(self.cWallSphereNodePath, self.pusher)
if self.wantFloorSphere:
tempCTrav.addCollider(self.cFloorSphereNodePath, self.event)
tempCTrav.addCollider(self.cRayNodePath, self.lifter)
tempCTrav.traverse(render)
def setMayJump(self, task):
"""
This function's use is internal to this class (maybe I'll add
the __ someday). Anyway, if you want to enable or disable
jumping in a general way see the ControlManager (don't use this).
"""
assert self.notify.debugStateCall(self)
self.mayJump = 1
return Task.done
def startJumpDelay(self, delay):
assert self.notify.debugStateCall(self)
if self.jumpDelayTask:
self.jumpDelayTask.remove()
self.mayJump = 0
self.jumpDelayTask=taskMgr.doMethodLater(
delay,
self.setMayJump,
"jumpDelay-%s"%id(self))
def addBlastForce(self, vector):
self.lifter.addVelocity(vector.length())
def displayDebugInfo(self):
"""
For debug use.
"""
onScreenDebug.add("w controls", "CrashWalker")
onScreenDebug.add("w airborneHeight", self.lifter.getAirborneHeight())
onScreenDebug.add("w falling", self.falling)
onScreenDebug.add("w isOnGround", self.lifter.isOnGround())
#onScreenDebug.add("w gravity", self.lifter.getGravity())
#onScreenDebug.add("w jumpForce", self.avatarControlJumpForce)
onScreenDebug.add("w contact normal", self.lifter.getContactNormal().pPrintValues())
onScreenDebug.add("w mayJump", self.mayJump)
onScreenDebug.add("w impact", self.lifter.getImpactVelocity())
onScreenDebug.add("w velocity", self.lifter.getVelocity())
onScreenDebug.add("w isAirborne", self.isAirborne)
onScreenDebug.add("w hasContact", self.lifter.hasContact())
def handleAvatarControls(self, task):
"""
Check on the arrow keys and update the avatar.
"""
# get the button states:
run = inputState.isSet("run")
forward = inputState.isSet("forward")
reverse = inputState.isSet("reverse")
turnLeft = inputState.isSet("turnLeft")
turnRight = inputState.isSet("turnRight")
jump = inputState.isSet("jump")# or bool(self.requestJump)
# Check for Auto-Run
#if 'localAvatar' in __builtins__:
# if base.localAvatar and base.localAvatar.getAutoRun():
# forward = 1
# reverse = 0
# Determine what the speeds are based on the buttons:
self.speed=0.0
if (forward and reverse):
# What?
self.lastSpeed = 0.0
return task.cont
if (forward or reverse or turnLeft or turnRight):
self.speed = self.avatarControlForwardSpeed
self.slideSpeed = 0.0
self.rotationSpeed = 0.0
twodirs = False
direction = Direction.Null
if (forward):
direction = Direction.Forward
elif (reverse):
direction = Direction.Reverse
elif (turnLeft):
direction = Direction.Left
elif (turnRight):
direction = Direction.Right
otherdir = Direction.Null
if (forward and turnLeft) or (reverse and turnLeft):
otherdir = Direction.Left
elif (forward and turnRight) or (reverse and turnRight):
otherdir = Direction.Right
if self.needToDeltaPos:
self.setPriorParentVector()
self.needToDeltaPos = 0
if self.wantDebugIndicator:
self.displayDebugInfo()
if self.lifter.isOnGround():
if self.isAirborne:
self.isAirborne = 0
assert self.debugPrint("isAirborne 0 due to isOnGround() true")
impact = self.lifter.getImpactVelocity()
if impact < -30.0:
messenger.send("jumpHardLand")
self.startJumpDelay(0.3)
else:
messenger.send("jumpLand")
if impact < -5.0:
self.startJumpDelay(0.2)
# else, ignore the little potholes.
assert self.isAirborne == 0
self.priorParent = Vec3.zero()
if jump and self.mayJump:
# The jump button is down and we're close
# enough to the ground to jump.
self.lifter.addVelocity(self.avatarControlJumpForce)
messenger.send("jumpStart")
self.isAirborne = 1
assert self.debugPrint("isAirborne 1 due to jump")
else:
if self.isAirborne == 0:
assert self.debugPrint("isAirborne 1 due to isOnGround() false")
self.isAirborne = 1
self.__oldPosDelta = self.avatarNodePath.getPosDelta(render)
# How far did we move based on the amount of time elapsed?
self.__oldDt = ClockObject.getGlobalClock().getDt()
dt=self.__oldDt
close_enough = 0.1
if ((direction != self.currentDirection and direction != Direction.Null) or (otherdir != self.currOtherDir) or (abs(self.lastCamNodeH - base.minigame.camNode.getH(render)) > close_enough)):
self.currentDirection = direction
self.currOtherDir = otherdir
self.lastCamNodeH = base.minigame.camNode.getH(render)
if (self.currentDirection != Direction.Null):
hdg = Direction.getHeading(direction, otherdir)
currHdg = self.avatarNodePath.getH(render) % 360
dur = 0.1
if (self.switchDirLerp):
self.switchDirLerp.pause()
self.switchDirLerp = None
self.switchDirLerp = LerpQuatInterval(self.avatarNodePath, dur, Point3(hdg, 0, 0), startHpr = Point3(currHdg, 0, 0))
self.switchDirLerp.start()
if (self.switchDirLerp != None):
if (self.switchDirLerp.isPlaying()):
if (otherdir == Direction.Null and not self.lastSpeed):
# Don't move while we're switching directions
return task.cont
# Check to see if we're moving at all:
self.moving = self.speed or self.slideSpeed or self.rotationSpeed or (self.priorParent!=Vec3.zero())
if self.moving:
distance = dt * self.speed
slideDistance = dt * self.slideSpeed
rotation = dt * self.rotationSpeed
# Take a step in the direction of our previous heading.
if distance or slideDistance or self.priorParent != Vec3.zero():
# rotMat is the rotation matrix corresponding to
# our previous heading.
rotMat=Mat3.rotateMatNormaxis(self.avatarNodePath.getH(), Vec3.up())
if self.isAirborne:
forward = Vec3.forward()
else:
contact = self.lifter.getContactNormal()
forward = contact.cross(Vec3.right())
# Consider commenting out this normalize. If you do so
# then going up and down slops is a touch slower and
# steeper terrain can cut the movement in half. Without
# the normalize the movement is slowed by the cosine of
# the slope (i.e. it is multiplied by the sign as a
# side effect of the cross product above).
forward.normalize()
self.vel=Vec3(forward * distance)
if slideDistance:
if self.isAirborne:
right = Vec3.right()
else:
right = forward.cross(contact)
# See note above for forward.normalize()
right.normalize()
self.vel=Vec3(self.vel + (right * slideDistance))
self.vel=Vec3(rotMat.xform(self.vel))
step=self.vel + (self.priorParent * dt)
self.avatarNodePath.setFluidPos(Point3(
self.avatarNodePath.getPos()+step))
self.avatarNodePath.setH(self.avatarNodePath.getH()+rotation)
else:
self.vel.set(0.0, 0.0, 0.0)
if self.moving or jump:
messenger.send("avatarMoving")
self.lastSpeed = float(self.speed)
return Task.cont
def doDeltaPos(self):
assert self.notify.debugStateCall(self)
self.needToDeltaPos = 1
def setPriorParentVector(self):
assert self.notify.debugStateCall(self)
if __debug__:
onScreenDebug.add("__oldDt", "% 10.4f"%self.__oldDt)
onScreenDebug.add("self.__oldPosDelta",
self.__oldPosDelta.pPrintValues())
# avoid divide by zero crash - grw
if self.__oldDt == 0:
velocity = 0
else:
velocity = self.__oldPosDelta*(1.0/self.__oldDt)
self.priorParent = Vec3(velocity)
if __debug__:
if self.wantDebugIndicator:
onScreenDebug.add("priorParent", self.priorParent.pPrintValues())
def reset(self):
assert self.notify.debugStateCall(self)
self.lifter.setVelocity(0.0)
self.priorParent=Vec3.zero()
def getVelocity(self):
return self.vel
def enableAvatarControls(self):
"""
Activate the arrow keys, etc.
"""
assert self.notify.debugStateCall(self)
assert self.collisionsActive
#*#if __debug__:
#*# self.accept("control-f3", self.spawnTest) #*#
# remove any old
if self.controlsTask:
self.controlsTask.remove()
# spawn the new task
taskName = "AvatarControls-%s"%(id(self),)
self.controlsTask = taskMgr.add(self.handleAvatarControls, taskName, 25)
self.isAirborne = 0
self.mayJump = 1
if self.physVelocityIndicator:
if self.indicatorTask:
self.indicatorTask.remove()
self.indicatorTask = taskMgr.add(
self.avatarPhysicsIndicator,
"AvatarControlsIndicator-%s"%(id(self),), 35)
def disableAvatarControls(self):
"""
Ignore the arrow keys, etc.
"""
assert self.notify.debugStateCall(self)
if self.controlsTask:
self.controlsTask.remove()
self.controlsTask = None
if self.indicatorTask:
self.indicatorTask.remove()
self.indicatorTask = None
if self.jumpDelayTask:
self.jumpDelayTask.remove()
self.jumpDelayTask = None
if __debug__:
self.ignore("control-f3") #*#
def flushEventHandlers(self):
if hasattr(self, 'cTrav'):
self.pusher.flush()
if self.wantFloorSphere:
self.floorPusher.flush()
self.event.flush()
self.lifter.flush() # not currently defined or needed
if __debug__:
def debugPrint(self, message):
"""for debugging"""
return self.notify.debug(
str(id(self))+' '+message)
# There are sometimes issues if the collision ray height is
# so tall that it collides with multiple levels of floors.
def setCollisionRayHeight(self, height):
self.cRay.setOrigin(0.0, 0.0, height)