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"""
Wild Pockets
Copyright (c) 2010 Carnegie Mellon University
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
"""
"""
Data structure constructor for models
"""
import solids,importer
modes={ "standard":0, "wireframe":1, "alphatest":2, }
class Model(importer.Importer):
def __init__(self):
self.description=None
self.collisions=[]
self.bones=[]
self.meshes={}
self.textures={}
self.mass=None
self.currentBone=None
self.currentMesh=None
self.currentMeshName=None
self.currentVertex=None
self.currentCollisionSphere=None
self.currentCollisionBox=None
self.physicsFlag=0
self.centerOfMass=(0,0,0)
self.inertiaRotation=(1,0,0,0)
self.inertiaScale=(1,1,1)
self.scriptFilename=None
self.scriptClassname=None
def _checkCurrentBone(self,cmdname):
"""
Raises an error if a command is attempted that isn't valid without
a bone
"""
if self.currentBone==None:
raise importer.ImporterError("Cannot do '"+cmdname+"' when there is no current bone.")
def _checkCurrentMesh(self,cmdname):
"""
Raises an error if a command is attempted that isn't valid without
a mesh
"""
if self.currentMesh==None:
raise importer.ImporterError("Cannot do '"+cmdname+"' when there is no current mesh.")
def _checkCurrentVertex(self,cmdname):
"""
Raises an error if a command is attempted that isn't valid without a vertex
"""
if self.currentVertex==None:
raise importer.ImporterError("Cannot do '"+cmdname+"' when there is no current vertex.")
def _checkCurrentCSphere(self,cmdname):
if self.currentCollisionSphere==None:
raise importer.ImporterError("Cannot do '"+cmdname+"' when there is no current collision sphere.")
def _checkCurrentCBox(self,cmdname):
if self.currentCollisionBox==None:
raise importer.ImporterError("Cannot do '"+cmdname+"' when there is no current collision box.")
def _checkCurrentWeight(self,cmdname):
if self.currentWeight==None:
raise importer.ImporterError("Cannot do '"+cmdname+"' when there is no current weight.")
def _addCollisionSphere(self,name,position=(0,0,0),radius=1,bone=0):
self.currentCollisionSphere={
"name":name,
"type":"sphere",
"position":position,
"radius":radius,
"bone":bone
}
self.collisions.append(self.currentCollisionSphere)
def _addCollisionBox(self,name,position=(0,0,0),size=(0,0,0),rotation=(1,0,0,0),bone=0):
self.currentCollisionBox={
"name":name,
"type":"box",
"position":position,
"size":size,
"rotation":rotation,
"bone":bone
}
self.collisions.append(self.currentCollisionBox)
def _addWeight(self,name,position=(0,0,0),magnitude=1,bone=0):
self.currentWeight={
"name":name,
"position":position,
"magnitude":magnitude,
"bone":bone
}
self.m_weights.append(self.currentWeight)
def setdescription(self,description):
self.description=description
def setmass(self,mass):
self.mass=float(mass)
def addbone(self,boneName,boneParent):
"""
Adds a bone to the model
"""
if boneName in self.bones:
raise importer.ImporterError("Attempted to add a bone named '"+boneName+"', but a bone by the same name already exists.")
self.currentBone={
"parentName":boneParent,
"position":(0,0,0),
"rotation":(1,0,0,0),
"scale":(1,1,1)
}
self.bones.append((boneName,self.currentBone))
def bonepos(self,x,y,z):
self._checkCurrentBone("bonepos")
self.currentBone["position"]=(float(x),float(y),float(z))
def bonequat(self,w,x,y,z):
self._checkCurrentBone("bonequat")
self.currentBone["rotation"]=tuple(map(float,(w,x,y,z)))
def bonescale(self,sx,sy,sz):
self._checkCurrentBone("bonescale")
self.currentBone["scale"]=tuple(map(float,(sx,sy,sz)))
def addmesh(self,meshname):
if meshname in self.meshes:
raise importer.ImporterError("Attempted to add a mesh with name '"+meshname+"', but that name was already used.")
self.currentMesh={
"vertices":[],
"feedOrder":[],
"texture":None,
"bumpmap":None,
"glossmap":None,
"bumptype":None,
"meshmode":(modes["standard"]),
"color":None,
}
self.meshes[meshname]=self.currentMesh
self.currentMeshName=meshname
def meshmode(self, modename):
self._checkCurrentMesh("meshmode")
self.currentMesh["meshmode"] = modes[modename]
def texture(self,texturePath):
"""
Sets the texture image of the current mesh
texturePath: Path to the texture
"""
self._checkCurrentMesh("texture")
self.textures[texturePath]="exists"
self.currentMesh["texture"]=texturePath
def bumpmap(self,texturePath):
"""
Sets the bump map of the current path (mutually exclusive with normal map)
texturePath: path to the texture
"""
self._checkCurrentMesh("bumpmap")
if(self.currentMesh["bumpmap"] != None):
raise importer.ImporterError("Attempted to add a bumpmap to the current mesh, but a bump or normal map was already added.")
self.textures[texturePath]="exists"
self.currentMesh["bumpmap"]=texturePath
self.currentMesh["bumptype"]="bump"
def normalmap(self,texturePath):
"""
Sets the bump map of the current path (mutually exclusive with normal map)
texturePath: path to the texture
"""
self._checkCurrentMesh("normalmap")
if(self.currentMesh["bumpmap"] != None):
raise importer.ImporterError("Attempted to add a normal map to the current mesh, but a bump or normal map was already added.")
self.textures[texturePath]="exists"
self.currentMesh["bumpmap"]=texturePath
self.currentMesh["bumptype"]="normal"
def glossmap(self,texturePath):
"""
Sets the gloss map of the current path
texturePath: path to the texture
"""
self._checkCurrentMesh("glossmap")
if(self.currentMesh["glossmap"] != None):
raise importer.ImporterError("Attempted to add a gloss map to the current mesh, but a gloss map was already added.")
self.textures[texturePath]="exists"
self.currentMesh["glossmap"]=texturePath
def addvertex(self,x,y,z):
self._checkCurrentMesh("addvertex")
try:
x=float(x)
y=float(y)
z=float(z)
except Exception,e:
raise importer.ImportError("Vertex coordinates were not convertible to finite decimal values.")
self.currentVertex={
"coords":(x,y,z),
"normal":(0,0,0),
"texture":(0,0),
"weights":None
}
self.currentMesh["vertices"].append(self.currentVertex)
def normal(self,x,y,z):
#note: we've decided to temporarily account for bad float values by simply smashing them to 0. Not the
# most robust solution, but we need the script to not crash until we can fix the loader
try:
x=float(x)
y=float(y)
z=float(z)
except Exception,e:
x=0
y=0
z=0
self._checkCurrentVertex("normal")
self.currentVertex["normal"]=(x,y,z)
def texcoord(self,x,y,z):
self._checkCurrentVertex("texcoord")
self.currentVertex["texture"]=(x,y,z)
def weights(self,i1,w1,i2,w2,i3,w3,i4,w4):
self._checkCurrentVertex("weights")
self.currentVertex["weights"]=((i1,w1),(i2,w2),(i3,w3),(i4,w4))
def addtri(self,t1,t2,t3):
self._checkCurrentMesh("addtri")
self.currentMesh["feedOrder"].append(t1)
self.currentMesh["feedOrder"].append(t2)
self.currentMesh["feedOrder"].append(t3)
def meshtoAABoundingBox(self):
self._checkCurrentMesh("meshtoAABoundingBox")
vertices=[]
for v in self.currentMesh["vertices"]:
vertices.append(v["coords"])
center,extent=solids.pointsToAABB(vertices)
self._addCollisionBox(
self.currentMeshName,
center,extent
)
del(self.meshes[self.currentMeshName])
self.currentMeshName=None
self.currentMesh=None
def meshtoSphere(self):
self._checkCurrentMesh("meshtoSphere")
vertices=[]
for v in self.currentMesh["vertices"]:
vertices.append(v["coords"])
center,radius=solids.pointsToSphere(vertices)
self._addCollisionSphere(
self.currentMeshName,
center,radius
)
del(self.meshes[self.currentMeshName])
self.currentMeshName=None
self.currentMesh=None
def meshtoBox(self):
self._checkCurrentMesh("meshtoBox")
vertices=[]
for v in self.currentMesh["vertices"]:
vertices.append(v["coords"])
center,rotation,extents=solids.pointsToBox(vertices)
self._addCollisionBox(
self.currentMeshName,
center,extents,rotation
)
del(self.meshes[self.currentMeshName])
self.currentMeshName=None
self.currentMesh=None
def cbox(self,name):
self._addCollisionBox(name)
def cbcenter(self,cx,cy,cz):
self._checkCurrentCBox("cbcenter")
self.currentCollisionBox["position"]=tuple(map(float,(cx,cy,cz)))
def cbsize(self,bx,by,bz):
self._checkCurrentCBox("cbsize")
self.currentCollisionBox["size"]=tuple(map(float,(bx,by,bz)))
def cbquat(self,w,x,y,z):
self._checkCurrentCBox("cbquat")
self.currentCollisionBox["rotation"]=tuple(map(float,(w,x,y,z)))
def cbbone(self,boneID):
self._checkCurrentCBox("cbbone")
self.currentCollisionBox["bone"]=int(boneID)
def csphere(self,name):
self._addCollisionSphere(name)
def cscenter(self,cx,cy,cz):
self._checkCurrentCSphere("cscenter")
self.currentCollisionSphere["position"]=tuple(map(float,(cx,cy,cz)))
def csradius(self,r):
self._checkCurrentCSphere("csradius")
self.currentCollisionSphere["radius"]=float(r)
def csbone(self,boneID):
self._checkCurrentCSphere("csbone")
self.currentCollisionSphere["bone"]=int(boneID)
def compos(self,x,y,z):
if self.physicsFlag==2:
raise importer.ImporterError("Cannot specify 'compos' command when any of the 'moi' commands have been specified.")
self.physicsFlag=1
self.centerOfMass=(float(x),float(y),float(z))
def moipos(self,x,y,z):
if self.physicsFlag==1:
raise importer.ImporterError("Cannot specify 'moipos' command when 'compos' has already been specified.")
self.physicsFlag=2
self.centerOfMass=(float(x),float(y),float(z))
def moiquat(self,w,x,y,z):
if self.physicsFlag==1:
raise importer.ImporterError("Cannot specify 'moiquat' command when 'compos' has already been specified.")
self.physicsFlag=2
self.inertiaRotation=(float(w),float(x),float(y),float(z))
def moiscale(self,x,y,z):
if self.physicsFlag==1:
raise importer.ImporterError("Cannot specify 'moiscale' command when 'compos' has already been specified.")
self.physicsFlag=2
self.inertiaScale=(float(x),float(y),float(z))
def luafilename(self,fname):
self.scriptFilename=str(fname)
def luaclassname(self,cname):
self.scriptClassname=str(cname)
def __str__(self):
nl="\n"
result=""
result += "description: "+str(self.description)+nl
result += "collisions: "+nl
for c in self.collisions:
result += " "+str(c)+nl
result += "bones:" +nl
boneCount=0
for (boneName,boneData) in self.bones:
result += " bone "+str(boneCount)+": "+boneName+" -> "+boneData["parentName"]+nl
result += " position: "+str(boneData["position"])+nl
result += " rotation: "+str(boneData["rotation"])+nl
result += " scale: "+str(boneData["scale"])+nl+nl
boneCount += 1
return result
|