mirror of
https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-11-01 01:07:54 +00:00
785 lines
27 KiB
Python
785 lines
27 KiB
Python
from direct.showbase.DirectObject import DirectObject
|
|
from DirectGlobals import *
|
|
from DirectUtil import *
|
|
from DirectGeometry import *
|
|
|
|
COA_ORIGIN = 0
|
|
COA_CENTER = 1
|
|
|
|
# MRM: To do: handle broken node paths in selected and deselected dicts
|
|
class DirectNodePath(NodePath):
|
|
# A node path augmented with info, bounding box, and utility methods
|
|
def __init__(self, nodePath, bboxColor=None):
|
|
# Initialize the superclass
|
|
NodePath.__init__(self)
|
|
self.assign(nodePath)
|
|
# Create a bounding box
|
|
self.bbox = DirectBoundingBox(self, bboxColor)
|
|
center = self.bbox.getCenter()
|
|
# Create matrix to hold the offset between the nodepath
|
|
# and its center of action (COA)
|
|
self.mCoa2Dnp = Mat4(Mat4.identMat())
|
|
if base.direct.coaMode == COA_CENTER:
|
|
self.mCoa2Dnp.setRow(3, Vec4(center[0], center[1], center[2], 1))
|
|
|
|
# Transform from nodePath to widget
|
|
self.tDnp2Widget = TransformState.makeIdentity()
|
|
|
|
def highlight(self, fRecompute = 1):
|
|
if fRecompute:
|
|
pass
|
|
#self.bbox.recompute()
|
|
self.bbox.show()
|
|
|
|
def dehighlight(self):
|
|
self.bbox.hide()
|
|
|
|
def getCenter(self):
|
|
return self.bbox.getCenter()
|
|
|
|
def getRadius(self):
|
|
return self.bbox.getRadius()
|
|
|
|
def getMin(self):
|
|
return self.bbox.getMin()
|
|
|
|
def getMax(self):
|
|
return self.bbox.getMax()
|
|
|
|
class SelectedNodePaths(DirectObject):
|
|
def __init__(self):
|
|
self.reset()
|
|
self.tagList = []
|
|
|
|
def addTag(self, tag):
|
|
if tag not in self.tagList:
|
|
self.tagList.append(tag)
|
|
|
|
def removeTag(self, tag):
|
|
self.tagList.remove(tag)
|
|
|
|
def reset(self):
|
|
self.selectedDict = {}
|
|
self.selectedList = [] # [gjeon] to maintain selected order
|
|
self.deselectedDict = {}
|
|
__builtins__["last"] = self.last = None
|
|
|
|
def select(self, nodePath, fMultiSelect = 0, fSelectTag = 1):
|
|
""" Select the specified node path. Multiselect as required """
|
|
# Do nothing if nothing selected
|
|
if not nodePath:
|
|
print 'Nothing selected!!'
|
|
return None
|
|
|
|
# Reset selected objects and highlight if multiSelect is false
|
|
if not fMultiSelect:
|
|
self.deselectAll()
|
|
|
|
# Select tagged object if present
|
|
if fSelectTag:
|
|
for tag in self.tagList:
|
|
if nodePath.hasNetTag(tag):
|
|
nodePath = nodePath.findNetTag(tag)
|
|
break
|
|
|
|
# Get this pointer
|
|
id = nodePath.get_key()
|
|
# First see if its already in the selected dictionary
|
|
dnp = self.getSelectedDict(id)
|
|
# If so, deselect it
|
|
if dnp:
|
|
self.deselect(nodePath)
|
|
return None
|
|
else:
|
|
# See if it is in the deselected dictionary
|
|
dnp = self.getDeselectedDict(id)
|
|
if dnp:
|
|
# Remove it from the deselected dictionary
|
|
del(self.deselectedDict[id])
|
|
# Show its bounding box
|
|
dnp.highlight()
|
|
else:
|
|
# Didn't find it, create a new selectedNodePath instance
|
|
dnp = DirectNodePath(nodePath)
|
|
# Show its bounding box
|
|
dnp.highlight(fRecompute = 0)
|
|
# Add it to the selected dictionary
|
|
self.selectedDict[dnp.get_key()] = dnp
|
|
self.selectedList.append(dnp) # [gjeon]
|
|
|
|
# And update last
|
|
__builtins__["last"] = self.last = dnp
|
|
# Update cluster servers if this is a cluster client
|
|
if base.direct.clusterMode == 'client':
|
|
cluster.selectNodePath(dnp)
|
|
return dnp
|
|
|
|
def deselect(self, nodePath):
|
|
""" Deselect the specified node path """
|
|
# Get this pointer
|
|
id = nodePath.get_key()
|
|
# See if it is in the selected dictionary
|
|
dnp = self.getSelectedDict(id)
|
|
if dnp:
|
|
# It was selected:
|
|
# Hide its bounding box
|
|
dnp.dehighlight()
|
|
# Remove it from the selected dictionary
|
|
del(self.selectedDict[id])
|
|
if dnp in self.selectedList: # [gjeon]
|
|
self.selectedList.remove(dnp)
|
|
# And keep track of it in the deselected dictionary
|
|
self.deselectedDict[id] = dnp
|
|
# Send a message
|
|
messenger.send('DIRECT_deselectedNodePath', [dnp])
|
|
# Update cluster servers if this is a cluster client
|
|
if base.direct.clusterMode == 'client':
|
|
cluster.deselectNodePath(dnp)
|
|
return dnp
|
|
|
|
def getSelectedAsList(self):
|
|
"""
|
|
Return a list of all selected node paths. No verification of
|
|
connectivity is performed on the members of the list
|
|
"""
|
|
#return self.selectedDict.values()[:]
|
|
return self.selectedList[:] # [gjeon] now return the list with selected order
|
|
|
|
def __getitem__(self, index):
|
|
return self.getSelectedAsList()[index]
|
|
|
|
def getSelectedDict(self, id):
|
|
"""
|
|
Search selectedDict for node path, try to repair broken node paths.
|
|
"""
|
|
dnp = self.selectedDict.get(id, None)
|
|
if dnp:
|
|
return dnp
|
|
else:
|
|
# Not in selected dictionary
|
|
return None
|
|
|
|
def getDeselectedAsList(self):
|
|
return self.deselectedDict.values()[:]
|
|
|
|
def getDeselectedDict(self, id):
|
|
"""
|
|
Search deselectedDict for node path, try to repair broken node paths.
|
|
"""
|
|
dnp = self.deselectedDict.get(id, None)
|
|
if dnp:
|
|
# Yes
|
|
return dnp
|
|
else:
|
|
# Not in deselected dictionary
|
|
return None
|
|
|
|
def forEachSelectedNodePathDo(self, func):
|
|
"""
|
|
Perform given func on selected node paths. No node path
|
|
connectivity verification performed
|
|
"""
|
|
selectedNodePaths = self.getSelectedAsList()
|
|
for nodePath in selectedNodePaths:
|
|
func(nodePath)
|
|
|
|
def forEachDeselectedNodePathDo(self, func):
|
|
"""
|
|
Perform given func on deselected node paths. No node path
|
|
connectivity verification performed
|
|
"""
|
|
deselectedNodePaths = self.getDeselectedAsList()
|
|
for nodePath in deselectedNodePaths:
|
|
func(nodePath)
|
|
|
|
def getWrtAll(self):
|
|
self.forEachSelectedNodePathDo(self.getWrt)
|
|
|
|
def getWrt(self, nodePath):
|
|
nodePath.tDnp2Widget = nodePath.getTransform(base.direct.widget)
|
|
|
|
def moveWrtWidgetAll(self):
|
|
self.forEachSelectedNodePathDo(self.moveWrtWidget)
|
|
|
|
def moveWrtWidget(self, nodePath):
|
|
nodePath.setTransform(base.direct.widget, nodePath.tDnp2Widget)
|
|
|
|
def deselectAll(self):
|
|
self.forEachSelectedNodePathDo(self.deselect)
|
|
|
|
def highlightAll(self):
|
|
self.forEachSelectedNodePathDo(DirectNodePath.highlight)
|
|
|
|
def dehighlightAll(self):
|
|
self.forEachSelectedNodePathDo(DirectNodePath.dehighlight)
|
|
|
|
def removeSelected(self):
|
|
selected = self.last
|
|
if selected:
|
|
selected.remove()
|
|
__builtins__["last"] = self.last = None
|
|
|
|
def removeAll(self):
|
|
# Remove all selected nodePaths from the Scene Graph
|
|
self.forEachSelectedNodePathDo(NodePath.remove)
|
|
|
|
def toggleVisSelected(self):
|
|
selected = self.last
|
|
# Toggle visibility of selected node paths
|
|
if selected:
|
|
selected.toggleVis()
|
|
|
|
def toggleVisAll(self):
|
|
# Toggle viz for all selected node paths
|
|
self.forEachSelectedNodePathDo(NodePath.toggleVis)
|
|
|
|
def isolateSelected(self):
|
|
selected = self.last
|
|
if selected:
|
|
selected.isolate()
|
|
|
|
def getDirectNodePath(self, nodePath):
|
|
# Get this pointer
|
|
id = nodePath.get_key()
|
|
# First check selected dict
|
|
dnp = self.getSelectedDict(id)
|
|
if dnp:
|
|
return dnp
|
|
# Otherwise return result of deselected search
|
|
return self.getDeselectedDict(id)
|
|
|
|
def getNumSelected(self):
|
|
return len(self.selectedDict.keys())
|
|
|
|
|
|
class DirectBoundingBox:
|
|
def __init__(self, nodePath, bboxColor=None):
|
|
# Record the node path
|
|
self.nodePath = nodePath
|
|
# Compute bounds, min, max, etc.
|
|
self.computeTightBounds()
|
|
# Generate the bounding box
|
|
self.lines = self.createBBoxLines(bboxColor)
|
|
|
|
def recompute(self):
|
|
# Compute bounds, min, max, etc.
|
|
self.computeTightBounds()
|
|
self.updateBBoxLines()
|
|
|
|
def computeTightBounds(self):
|
|
# Compute bounding box using tighter calcTightBounds function
|
|
# Need to clear out existing transform on node path
|
|
tMat = Mat4(self.nodePath.getMat())
|
|
self.nodePath.clearMat()
|
|
# Get bounds
|
|
self.min = Point3(0)
|
|
self.max = Point3(0)
|
|
self.nodePath.calcTightBounds(self.min, self.max)
|
|
# Calc center and radius
|
|
self.center = Point3((self.min + self.max)/2.0)
|
|
self.radius = Vec3(self.max - self.min).length()
|
|
# Restore transform
|
|
self.nodePath.setMat(tMat)
|
|
del tMat
|
|
|
|
def computeBounds(self):
|
|
self.bounds = self.getBounds()
|
|
if self.bounds.isEmpty() or self.bounds.isInfinite():
|
|
self.center = Point3(0)
|
|
self.radius = 1.0
|
|
else:
|
|
self.center = self.bounds.getCenter()
|
|
self.radius = self.bounds.getRadius()
|
|
self.min = Point3(self.center - Point3(self.radius))
|
|
self.max = Point3(self.center + Point3(self.radius))
|
|
|
|
def createBBoxLines(self, bboxColor=None):
|
|
# Create a line segments object for the bbox
|
|
lines = LineNodePath(hidden)
|
|
lines.node().setName('bboxLines')
|
|
if (bboxColor):
|
|
lines.setColor(VBase4(*bboxColor))
|
|
else:
|
|
lines.setColor(VBase4(1., 0., 0., 1.))
|
|
lines.setThickness(0.5)
|
|
|
|
minX = self.min[0]
|
|
minY = self.min[1]
|
|
minZ = self.min[2]
|
|
maxX = self.max[0]
|
|
maxY = self.max[1]
|
|
maxZ = self.max[2]
|
|
|
|
# Bottom face
|
|
lines.moveTo(minX, minY, minZ)
|
|
lines.drawTo(maxX, minY, minZ)
|
|
lines.drawTo(maxX, maxY, minZ)
|
|
lines.drawTo(minX, maxY, minZ)
|
|
lines.drawTo(minX, minY, minZ)
|
|
|
|
# Front Edge/Top face
|
|
lines.drawTo(minX, minY, maxZ)
|
|
lines.drawTo(maxX, minY, maxZ)
|
|
lines.drawTo(maxX, maxY, maxZ)
|
|
lines.drawTo(minX, maxY, maxZ)
|
|
lines.drawTo(minX, minY, maxZ)
|
|
|
|
# Three remaining edges
|
|
lines.moveTo(maxX, minY, minZ)
|
|
lines.drawTo(maxX, minY, maxZ)
|
|
lines.moveTo(maxX, maxY, minZ)
|
|
lines.drawTo(maxX, maxY, maxZ)
|
|
lines.moveTo(minX, maxY, minZ)
|
|
lines.drawTo(minX, maxY, maxZ)
|
|
|
|
# Create and return bbox lines
|
|
lines.create()
|
|
|
|
# Make sure bbox is never lit or drawn in wireframe
|
|
useDirectRenderStyle(lines)
|
|
|
|
return lines
|
|
|
|
def setBoxColorScale(self, r, g, b, a):
|
|
if (self.lines):
|
|
self.lines.reset()
|
|
self.lines = None
|
|
self.lines = self.createBBoxLines((r, g, b, a))
|
|
self.show()
|
|
|
|
def updateBBoxLines(self):
|
|
ls = self.lines.lineSegs
|
|
|
|
minX = self.min[0]
|
|
minY = self.min[1]
|
|
minZ = self.min[2]
|
|
maxX = self.max[0]
|
|
maxY = self.max[1]
|
|
maxZ = self.max[2]
|
|
|
|
# Bottom face
|
|
ls.setVertex(0, minX, minY, minZ)
|
|
ls.setVertex(1, maxX, minY, minZ)
|
|
ls.setVertex(2, maxX, maxY, minZ)
|
|
ls.setVertex(3, minX, maxY, minZ)
|
|
ls.setVertex(4, minX, minY, minZ)
|
|
|
|
# Front Edge/Top face
|
|
ls.setVertex(5, minX, minY, maxZ)
|
|
ls.setVertex(6, maxX, minY, maxZ)
|
|
ls.setVertex(7, maxX, maxY, maxZ)
|
|
ls.setVertex(8, minX, maxY, maxZ)
|
|
ls.setVertex(9, minX, minY, maxZ)
|
|
|
|
# Three remaining edges
|
|
ls.setVertex(10, maxX, minY, minZ)
|
|
ls.setVertex(11, maxX, minY, maxZ)
|
|
ls.setVertex(12, maxX, maxY, minZ)
|
|
ls.setVertex(13, maxX, maxY, maxZ)
|
|
ls.setVertex(14, minX, maxY, minZ)
|
|
ls.setVertex(15, minX, maxY, maxZ)
|
|
|
|
def getBounds(self):
|
|
# Get a node path's bounds
|
|
nodeBounds = BoundingSphere()
|
|
nodeBounds.extendBy(self.nodePath.node().getInternalBound())
|
|
for child in self.nodePath.getChildren():
|
|
nodeBounds.extendBy(child.getBounds())
|
|
return nodeBounds.makeCopy()
|
|
|
|
def show(self):
|
|
self.lines.reparentTo(self.nodePath)
|
|
|
|
def hide(self):
|
|
self.lines.reparentTo(hidden)
|
|
|
|
def getCenter(self):
|
|
return self.center
|
|
|
|
def getRadius(self):
|
|
return self.radius
|
|
|
|
def getMin(self):
|
|
return self.min
|
|
|
|
def getMax(self):
|
|
return self.max
|
|
|
|
def vecAsString(self, vec):
|
|
return '%.2f %.2f %.2f' % (vec[0], vec[1], vec[2])
|
|
|
|
def __repr__(self):
|
|
return (repr(self.__class__) +
|
|
'\nNodePath:\t%s\n' % self.nodePath.getName() +
|
|
'Min:\t\t%s\n' % self.vecAsString(self.min) +
|
|
'Max:\t\t%s\n' % self.vecAsString(self.max) +
|
|
'Center:\t\t%s\n' % self.vecAsString(self.center) +
|
|
'Radius:\t\t%.2f' % self.radius
|
|
)
|
|
|
|
|
|
class SelectionQueue(CollisionHandlerQueue):
|
|
def __init__(self, parentNP = None):
|
|
if parentNP is None:
|
|
parentNP = render
|
|
# Initialize the superclass
|
|
CollisionHandlerQueue.__init__(self)
|
|
# Current index and entry in collision queue
|
|
self.index = -1
|
|
self.entry = None
|
|
self.skipFlags = SKIP_NONE
|
|
# Create a collision node path attached to the given NP
|
|
self.collisionNodePath = NodePath(CollisionNode("collisionNP"))
|
|
self.setParentNP(parentNP)
|
|
# Don't pay the penalty of drawing this collision ray
|
|
self.collisionNodePath.hide()
|
|
self.collisionNode = self.collisionNodePath.node()
|
|
# Intersect with geometry to begin with
|
|
self.collideWithGeom()
|
|
# And a traverser to do the actual collision tests
|
|
self.ct = CollisionTraverser("DirectSelection")
|
|
self.ct.setRespectPrevTransform(False)
|
|
# Let the traverser know about the collision node and the queue
|
|
self.ct.addCollider(self.collisionNodePath, self)
|
|
# List of objects that can't be selected
|
|
self.unpickable = UNPICKABLE
|
|
# Derived class must add Collider to complete initialization
|
|
|
|
def setParentNP(self, parentNP):
|
|
# Update collisionNodePath's parent
|
|
self.collisionNodePath.reparentTo(parentNP)
|
|
|
|
def addCollider(self, collider):
|
|
# Inherited class must call this function to specify collider object
|
|
# Record collision object
|
|
self.collider = collider
|
|
# Add the collider to the collision Node
|
|
self.collisionNode.addSolid(self.collider)
|
|
|
|
def collideWithBitMask(self, bitMask):
|
|
# The into collide mask is the bit pattern colliders look at
|
|
# when deciding whether or not to test for a collision "into"
|
|
# this collision solid. Set to all Off so this collision solid
|
|
# will not be considered in any collision tests
|
|
self.collisionNode.setIntoCollideMask(BitMask32().allOff())
|
|
# The from collide mask is the bit pattern *this* collision solid
|
|
# compares against the into collide mask of candidate collision solids
|
|
# Turn this mask all off since we're not testing for collisions against
|
|
# collision solids
|
|
self.collisionNode.setFromCollideMask(bitMask)
|
|
|
|
def collideWithGeom(self):
|
|
# The into collide mask is the bit pattern colliders look at
|
|
# when deciding whether or not to test for a collision "into"
|
|
# this collision solid. Set to all Off so this collision solid
|
|
# will not be considered in any collision tests
|
|
self.collisionNode.setIntoCollideMask(BitMask32().allOff())
|
|
# The from collide mask is the bit pattern *this* collision solid
|
|
# compares against the into collide mask of candidate collision solids
|
|
# Turn this mask all off since we're not testing for collisions against
|
|
# collision solids
|
|
self.collisionNode.setFromCollideMask(GeomNode.getDefaultCollideMask())
|
|
|
|
def collideWithWidget(self):
|
|
# This collision node should not be tested against by any other
|
|
# collision solids
|
|
self.collisionNode.setIntoCollideMask(BitMask32().allOff())
|
|
# This collision node will test for collisions with any collision
|
|
# solids with a bit mask set to 0x80000000
|
|
mask = BitMask32()
|
|
mask.setWord(0x80000000)
|
|
self.collisionNode.setFromCollideMask(mask)
|
|
|
|
def addUnpickable(self, item):
|
|
if item not in self.unpickable:
|
|
self.unpickable.append(item)
|
|
|
|
def removeUnpickable(self, item):
|
|
if item in self.unpickable:
|
|
self.unpickable.remove(item)
|
|
|
|
def setCurrentIndex(self, index):
|
|
if (index < 0) or (index >= self.getNumEntries()):
|
|
self.index = -1
|
|
else:
|
|
self.index = index
|
|
|
|
def setCurrentEntry(self, entry):
|
|
self.entry = entry
|
|
|
|
def getCurrentEntry(self):
|
|
return self.entry
|
|
|
|
def isEntryBackfacing(self, entry):
|
|
# If dot product of collision point surface normal and
|
|
# ray from camera to collision point is positive, we are
|
|
# looking at the backface of the polygon
|
|
if not entry.hasSurfaceNormal():
|
|
# Well, no way to tell. Assume we're not backfacing.
|
|
return 0
|
|
|
|
if direct:
|
|
cam = base.direct.cam
|
|
else:
|
|
cam = base.cam
|
|
|
|
fromNodePath = entry.getFromNodePath()
|
|
v = Vec3(entry.getSurfacePoint(fromNodePath))
|
|
n = entry.getSurfaceNormal(fromNodePath)
|
|
# Convert to camera space for backfacing test
|
|
if self.collisionNodePath.getParent() != cam:
|
|
# Problem: assumes base.cam is the camera in question
|
|
p2cam = self.collisionNodePath.getParent().getMat(cam)
|
|
v = Vec3(p2cam.xformPoint(v))
|
|
n = p2cam.xformVec(n)
|
|
# Normalize and check angle between to vectors
|
|
v.normalize()
|
|
return v.dot(n) >= 0
|
|
|
|
def findNextCollisionEntry(self, skipFlags = SKIP_NONE):
|
|
return self.findCollisionEntry(skipFlags, self.index + 1)
|
|
|
|
def findCollisionEntry(self, skipFlags = SKIP_NONE, startIndex = 0):
|
|
# Init self.index and self.entry
|
|
self.setCurrentIndex(-1)
|
|
self.setCurrentEntry(None)
|
|
# Pick out the closest object that isn't a widget
|
|
for i in range(startIndex, self.getNumEntries()):
|
|
entry = self.getEntry(i)
|
|
nodePath = entry.getIntoNodePath()
|
|
if (skipFlags & SKIP_HIDDEN) and nodePath.isHidden():
|
|
# Skip if hidden node
|
|
pass
|
|
elif (skipFlags & SKIP_BACKFACE) and self.isEntryBackfacing(entry):
|
|
# Skip, if backfacing poly
|
|
pass
|
|
elif ((skipFlags & SKIP_CAMERA) and
|
|
(camera in nodePath.getAncestors())):
|
|
# Skip if parented to a camera.
|
|
pass
|
|
# Can pick unpickable, use the first visible node
|
|
elif ((skipFlags & SKIP_UNPICKABLE) and
|
|
(nodePath.getName() in self.unpickable)):
|
|
# Skip if in unpickable list
|
|
pass
|
|
elif base.direct and\
|
|
((skipFlags & SKIP_WIDGET) and
|
|
(nodePath.getTag('WidgetName') != base.direct.widget.getName())):
|
|
# Skip if this widget part is not belong to current widget
|
|
pass
|
|
elif base.direct and\
|
|
((skipFlags & SKIP_WIDGET) and base.direct.fControl and
|
|
(nodePath.getName()[2:] == 'ring')):
|
|
# Skip when ununiformly scale in ortho view
|
|
pass
|
|
else:
|
|
self.setCurrentIndex(i)
|
|
self.setCurrentEntry(entry)
|
|
break
|
|
return self.getCurrentEntry()
|
|
|
|
class SelectionRay(SelectionQueue):
|
|
def __init__(self, parentNP = None):
|
|
if parentNP is None:
|
|
parentNP = render
|
|
# Initialize the superclass
|
|
SelectionQueue.__init__(self, parentNP)
|
|
self.addCollider(CollisionRay())
|
|
|
|
def pick(self, targetNodePath, xy = None):
|
|
# Determine ray direction based upon the mouse coordinates
|
|
if xy:
|
|
mx = xy[0]
|
|
my = xy[1]
|
|
elif direct:
|
|
mx = base.direct.dr.mouseX
|
|
my = base.direct.dr.mouseY
|
|
else:
|
|
if not base.mouseWatcherNode.hasMouse():
|
|
# No mouse in window.
|
|
self.clearEntries()
|
|
return
|
|
mx = base.mouseWatcherNode.getMouseX()
|
|
my = base.mouseWatcherNode.getMouseY()
|
|
|
|
if direct:
|
|
self.collider.setFromLens(base.direct.camNode, mx, my)
|
|
else:
|
|
self.collider.setFromLens(base.camNode, mx, my)
|
|
self.ct.traverse(targetNodePath)
|
|
self.sortEntries()
|
|
|
|
def pickBitMask(self, bitMask = BitMask32.allOff(),
|
|
targetNodePath = None,
|
|
skipFlags = SKIP_ALL):
|
|
if targetNodePath is None:
|
|
targetNodePath = render
|
|
self.collideWithBitMask(bitMask)
|
|
self.pick(targetNodePath)
|
|
# Determine collision entry
|
|
return self.findCollisionEntry(skipFlags)
|
|
|
|
def pickGeom(self, targetNodePath = None, skipFlags = SKIP_ALL,
|
|
xy = None):
|
|
if targetNodePath is None:
|
|
targetNodePath = render
|
|
self.collideWithGeom()
|
|
self.pick(targetNodePath, xy = xy)
|
|
# Determine collision entry
|
|
return self.findCollisionEntry(skipFlags)
|
|
|
|
def pickWidget(self, targetNodePath = None, skipFlags = SKIP_NONE):
|
|
if targetNodePath is None:
|
|
targetNodePath = render
|
|
self.collideWithWidget()
|
|
self.pick(targetNodePath)
|
|
# Determine collision entry
|
|
return self.findCollisionEntry(skipFlags)
|
|
|
|
def pick3D(self, targetNodePath, origin, dir):
|
|
# Determine ray direction based upon the mouse coordinates
|
|
self.collider.setOrigin(origin)
|
|
self.collider.setDirection(dir)
|
|
self.ct.traverse(targetNodePath)
|
|
self.sortEntries()
|
|
|
|
def pickGeom3D(self, targetNodePath = None,
|
|
origin = Point3(0), dir = Vec3(0, 0, -1),
|
|
skipFlags = SKIP_HIDDEN | SKIP_CAMERA):
|
|
if targetNodePath is None:
|
|
targetNodePath = render
|
|
self.collideWithGeom()
|
|
self.pick3D(targetNodePath, origin, dir)
|
|
# Determine collision entry
|
|
return self.findCollisionEntry(skipFlags)
|
|
|
|
def pickBitMask3D(self, bitMask = BitMask32.allOff(),
|
|
targetNodePath = None,
|
|
origin = Point3(0), dir = Vec3(0, 0, -1),
|
|
skipFlags = SKIP_ALL):
|
|
if targetNodePath is None:
|
|
targetNodePath = render
|
|
self.collideWithBitMask(bitMask)
|
|
self.pick3D(targetNodePath, origin, dir)
|
|
# Determine collision entry
|
|
return self.findCollisionEntry(skipFlags)
|
|
|
|
|
|
class SelectionSegment(SelectionQueue):
|
|
# Like a selection ray but with two endpoints instead of an endpoint
|
|
# and a direction
|
|
def __init__(self, parentNP = None, numSegments = 1):
|
|
if parentNP is None:
|
|
parentNP = render
|
|
# Initialize the superclass
|
|
SelectionQueue.__init__(self, parentNP)
|
|
self.colliders = []
|
|
self.numColliders = 0
|
|
for i in range(numSegments):
|
|
self.addCollider(CollisionSegment())
|
|
|
|
def addCollider(self, collider):
|
|
# Record new collision object
|
|
self.colliders.append(collider)
|
|
# Add the collider to the collision Node
|
|
self.collisionNode.addSolid(collider)
|
|
self.numColliders += 1
|
|
|
|
def pickGeom(self, targetNodePath = None, endPointList = [],
|
|
skipFlags = SKIP_HIDDEN | SKIP_CAMERA):
|
|
if targetNodePath is None:
|
|
targetNodePath = render
|
|
self.collideWithGeom()
|
|
for i in range(min(len(endPointList), self.numColliders)):
|
|
pointA, pointB = endPointList[i]
|
|
collider = self.colliders[i]
|
|
collider.setPointA(pointA)
|
|
collider.setPointB(pointB)
|
|
self.ct.traverse(targetNodePath)
|
|
# Determine collision entry
|
|
return self.findCollisionEntry(skipFlags)
|
|
|
|
def pickBitMask(self, bitMask = BitMask32.allOff(),
|
|
targetNodePath = None, endPointList = [],
|
|
skipFlags = SKIP_HIDDEN | SKIP_CAMERA):
|
|
if targetNodePath is None:
|
|
targetNodePath = render
|
|
self.collideWithBitMask(bitMask)
|
|
for i in range(min(len(endPointList), self.numColliders)):
|
|
pointA, pointB = endPointList[i]
|
|
collider = self.colliders[i]
|
|
collider.setPointA(pointA)
|
|
collider.setPointB(pointB)
|
|
self.ct.traverse(targetNodePath)
|
|
# Determine collision entry
|
|
return self.findCollisionEntry(skipFlags)
|
|
|
|
|
|
class SelectionSphere(SelectionQueue):
|
|
# Wrapper around collision sphere
|
|
def __init__(self, parentNP = None, numSpheres = 1):
|
|
if parentNP is None:
|
|
parentNP = render
|
|
# Initialize the superclass
|
|
SelectionQueue.__init__(self, parentNP)
|
|
self.colliders = []
|
|
self.numColliders = 0
|
|
for i in range(numSpheres):
|
|
self.addCollider(CollisionSphere(Point3(0), 1))
|
|
|
|
def addCollider(self, collider):
|
|
# Record new collision object
|
|
self.colliders.append(collider)
|
|
# Add the collider to the collision Node
|
|
self.collisionNode.addSolid(collider)
|
|
self.numColliders += 1
|
|
|
|
def setCenter(self, i, center):
|
|
c = self.colliders[i]
|
|
c.setCenter(center)
|
|
|
|
def setRadius(self, i, radius):
|
|
c = self.colliders[i]
|
|
c.setRadius(radius)
|
|
|
|
def setCenterRadius(self, i, center, radius):
|
|
c = self.colliders[i]
|
|
c.setCenter(center)
|
|
c.setRadius(radius)
|
|
|
|
def isEntryBackfacing(self, entry):
|
|
# If dot product of collision point surface normal and
|
|
# ray from sphere origin to collision point is positive,
|
|
# center is on the backside of the polygon
|
|
fromNodePath = entry.getFromNodePath()
|
|
v = Vec3(entry.getSurfacePoint(fromNodePath) -
|
|
entry.getFrom().getCenter())
|
|
n = entry.getSurfaceNormal(fromNodePath)
|
|
# If points almost on top of each other, reject face
|
|
# (treat as backfacing)
|
|
if v.length() < 0.05:
|
|
return 1
|
|
# Normalize and check angle between to vectors
|
|
v.normalize()
|
|
return v.dot(n) >= 0
|
|
|
|
def pick(self, targetNodePath, skipFlags):
|
|
self.ct.traverse(targetNodePath)
|
|
self.sortEntries()
|
|
return self.findCollisionEntry(skipFlags)
|
|
|
|
def pickGeom(self, targetNodePath = None,
|
|
skipFlags = SKIP_HIDDEN | SKIP_CAMERA):
|
|
if targetNodePath is None:
|
|
targetNodePath = render
|
|
self.collideWithGeom()
|
|
return self.pick(targetNodePath, skipFlags)
|
|
|
|
def pickBitMask(self, bitMask = BitMask32.allOff(),
|
|
targetNodePath = None,
|
|
skipFlags = SKIP_HIDDEN | SKIP_CAMERA):
|
|
if targetNodePath is None:
|
|
targetNodePath = render
|
|
self.collideWithBitMask(bitMask)
|
|
return self.pick(targetNodePath, skipFlags)
|
|
|