GODOT IS OPEN SOURCE

1 files changed, 1842 insertions, 0 deletions

diff --git a/tools/export/godot_export.py b/tools/export/godot_export.py
new file mode 100644
index 0000000000..0503fa6521
--- /dev/null
+++ b/tools/export/godot_export.py
@@ -0,0 +1,1842 @@
+#!BPY
+# -*- coding: utf-8 -*-
+"""
+Name: 'godot export (.xml)...'
+Blender: 241
+Group: 'Export'
+Tooltip: 'Godot exporter'
+"""
+
+
+godot_revision="$Rev: 2068 $"
+
+VERSION = "1.0"
+
+import os
+import Blender
+import math
+from Blender.BGL import *
+
+MAX_WEIGHTS_PER_VERTEX = 4
+
+class ExporterData:
+	def __init__(self, fname):
+
+		self.resource_list=[]
+		self.mesh_caches={}
+		self.material_caches={}
+		self.filename = fname
+
+class ObjectTree:
+	
+
+	def add(self,p_prop,p_val):
+		self._properties+=[(p_prop,p_val)]
+		
+	def __init__(self,p_parent,p_type,p_name=""):
+		self._parent=p_parent
+		self._name=p_name
+		self._type=p_type
+		self._properties=[]
+		self._children=[]
+		self._resource=False
+		self._res_path=""
+		self._bone_map=None
+
+
+def get_root_objects(scene):
+	objs=[]
+	for x in list(scene.objects):
+		parent = x.getParent()
+		if (parent==None):
+			objs+=[x]
+	return objs
+
+def get_children_objects(scene,node):
+	objs=[]
+	for x in list(scene.objects):
+		if (x.getParent()==None or x.getParent().getName()!=node.getName()):
+			continue
+		objs+=[x]
+			
+	return objs
+
+
+def convert_matrix(m):
+
+	mat = m.copy()
+	
+
+# Invert Z by Y, including position, but leave [2][2] alone, which is done by mirroring
+# 
+
+	for col in range(4):
+		tmp = mat[col][1]
+		mat[col][1] = mat[col][2]
+		mat[col][2] = tmp
+
+	for row in range(4):
+		tmp = mat[1][row]
+		mat[1][row] = mat[2][row]
+		mat[2][row] = tmp
+
+
+	mat[2][0]=-mat[2][0]
+	mat[2][1]=-mat[2][1]
+	mat[2][3]=-mat[2][3]
+	mat[0][2]=-mat[0][2]
+	mat[1][2]=-mat[1][2]
+	mat[3][2]=-mat[3][2]
+
+	return mat
+
+
+def eq_vec(a,b):
+	return (a.distance_to(b)<0.0001)
+
+def eq_uv(a,b):
+	return (a.distance_to(b)<0.0001)
+
+def add_vec(a,b):
+	return Vector3( (a.x+b.x, a.y+b.y, a.z+b.z ) )
+	
+def sub_vec(a,b):
+	return Vector3( (a.x-b.x, a.y-b.y, a.z-b.z ) )
+
+def mul_vec(a,b):
+	return Vector3( (a.x*b.x, a.y*b.y, a.z*b.z ) )
+
+def dot_vec(a,b):
+	return a.x*b.x + a.y*b.y + a.z*b.z
+
+def cross_vec(a,b):
+       	x =  (a.y * b.z) - (a.z * b.y);
+	y =  (a.z * b.x) - (a.x * b.z);
+	z =  (a.x * b.y) - (a.y * b.x);
+	return Vector3( (x,y,z) )
+
+def mul_vecs(a,s):
+	return Vector3( (a.x*s, a.y*s, a.z*s) )
+
+
+def div_vecs(a,s):
+	return Vector3( (a.x/s, a.y/s, a.z/s) )
+
+
+class Color:
+	def average(self):
+		return (self.r+self.g+self.b)/3.0
+		
+	def __init__(self,tup):
+
+		self.r=0
+		self.g=0
+		self.b=0
+		self.a=1.0
+		
+		if (len(tup)>=1):
+			self.r=tup[0]
+		if (len(tup)>=2):
+			self.g=tup[1]
+		if (len(tup)>=3):
+			self.b=tup[2]
+		if (len(tup)>=4):
+			self.a=tup[3]
+
+
+
+
+class Vector3:
+	
+	def distance_to(self,v):
+		return math.sqrt( (self.x-v.x)**2 + (self.y-v.y)**2 +  (self.z-v.z)**2 );
+	def length(self):
+		return math.sqrt( self.x**2 + self.y**2 + self.z**2 )
+	def normalize(self):
+		l=self.length()
+		if (l==0.0):
+			return
+		self.x/=l
+		self.y/=l
+		self.z/=l
+	
+	def __init__(self,tup):
+		self.x=0
+		self.y=0
+		self.z=0
+		
+		if (len(tup)>=1):
+			self.x=tup[0]
+		if (len(tup)>=2):
+			self.y=tup[1]
+		if (len(tup)>=3):
+			self.z=tup[2]
+
+
+class Matrix4x3:
+
+	def invert(self):
+		
+		self.m[0][1], self.m[1][0]=self.m[1][0], self.m[0][1]
+		self.m[0][2], self.m[2][0]=self.m[2][0], self.m[0][2]
+		self.m[1][2], self.m[2][1]=self.m[2][1], self.m[1][2]
+
+		x= -self.m[0][3];
+		y= -self.m[1][3];
+		z= -self.m[2][3];
+
+		self.m[0][3]= (self.m[0][0]*x ) + ( self.m[1][0]*y ) + ( self.m[2][0]*z );
+		self.m[1][3]= (self.m[0][1]*x ) + ( self.m[1][1]*y ) + ( self.m[2][1]*z );
+		self.m[2][3]= (self.m[0][2]*x ) + ( self.m[1][2]*y ) + ( self.m[2][2]*z );
+		
+	def mult_by(self,mat):
+		
+		new_m=Matrix4x3()
+		for j in range(4):
+			for i in range(3):
+				ab = 0;
+				for k in range(3):
+					ab += self.m[i][k] * mat.m[k][j];
+					
+				new_m.m[i][j]=ab;
+		self.m=new_m.m
+	"""
+	def mult_by(mat):
+		res=Matrix4x3()
+		res.elements[0][0] =solf.m[0][0] * self.m[0][0] +solf.m[0][1] * self.m[1][0] +solf.m[0][2] * self.m[2][0];
+		res.elements[0][1] =solf.m[0][0] * self.m[0][1] +solf.m[0][1] * self.m[1][1] +solf.m[0][2] * self.m[2][1];
+		res.elements[0][2] =solf.m[0][0] * self.m[0][2] +solf.m[0][1] * self.m[1][2] +solf.m[0][2] * self.m[2][2];
+
+		res.elements[1][0] =solf.m[1][0] * self.m[0][0] +solf.m[1][1] * self.m[1][0] +solf.m[1][2] * self.m[2][0];
+		res.elements[1][1] =solf.m[1][0] * self.m[0][1] +solf.m[1][1] * self.m[1][1] +solf.m[1][2] * self.m[2][1];
+		res.elements[1][2] =solf.m[1][0] * self.m[0][2] +solf.m[1][1] * self.m[1][2] +solf.m[1][2] * self.m[2][2];
+
+		res.elements[2][0] =solf.m[2][0] * self.m[0][0] +solf.m[2][1] * self.m[1][0] +solf.m[2][2] * self.m[2][0];
+		res.elements[2][1] =solf.m[2][0] * self.m[0][1] +solf.m[2][1] * self.m[1][1] +solf.m[2][2] * self.m[2][1];
+		res.elements[2][2] =solf.m[2][0] * self.m[0][2] +solf.m[2][1] * self.m[1][2] +solf.m[2][2] * self.m[2][2];
+	"""
+	def xform(self,vec):
+		
+		x=self.m[0][0] * vec.x + self.m[0][1] * vec.y + self.m[0][2] * vec.z + self.m[0][3]
+		y=self.m[1][0] * vec.x + self.m[1][1] * vec.y + self.m[1][2] * vec.z + self.m[1][3]
+		z=self.m[2][0] * vec.x + self.m[2][1] * vec.y + self.m[2][2] * vec.z + self.m[2][3]
+		return Vector3( (x,y,z ) )
+
+	def xform_basis(self,vec):
+		
+		x=self.m[0][0] * vec.x + self.m[0][1] * vec.y + self.m[0][2] * vec.z
+		y=self.m[1][0] * vec.x + self.m[1][1] * vec.y + self.m[1][2] * vec.z
+		z=self.m[2][0] * vec.x + self.m[2][1] * vec.y + self.m[2][2] * vec.z
+		return Vector3( (x,y,z ) )
+
+	def copy(self):
+		ret=Matrix4x3();
+		for i in range(3):
+			for j in range(4):
+				ret.m[i][j]=self.m[i][j]
+		return ret;
+		
+	def setBlenderMatrix(self,bm):
+		for i in range(3):
+			for j in range(3):
+				self.m[i][j]=bm[i][j]
+				
+			self.m[i][3]=bm[3][i] #weird
+
+	def getBlenderMatrix(self):
+		bm=Blender.Mathutils.Matrix([0,0,0,0],[0,0,0,0],[0,0,0,0],[0,0,0,1])
+		for i in range(3):
+			for j in range(3):
+				bm[i][j]=self.m[i][j]
+				
+			bm[3][i]=self.m[i][3] #weird
+				
+		return bm;
+
+	def getPos(self):
+		return Vector3( (self.m[0][3], self.m[1][3], self.m[2][3]) )
+	def getScale(self):
+		norm=((\
+			Vector3((self.m[0][0], self.m[0][1], self.m[0][2])).length(),\
+			Vector3((self.m[1][0], self.m[1][1], self.m[1][2])).length(),\
+			Vector3((self.m[2][0], self.m[2][1], self.m[2][2])).length()\
+			)) 
+		return Vector3(norm)
+
+	def scale(self,s):
+		self.m[0][0]*=s.x;
+		self.m[0][1]*=s.x;
+		self.m[0][2]*=s.x;
+		self.m[0][3]*=s.x;
+		self.m[1][0]*=s.y;
+		self.m[1][1]*=s.y;
+		self.m[1][2]*=s.y;
+		self.m[1][3]*=s.y;
+		self.m[2][0]*=s.z;
+		self.m[2][1]*=s.z;
+		self.m[2][2]*=s.z;
+		self.m[2][3]*=s.z;
+
+	def scale3x3(self,s):
+		self.m[0][0]*=s.x;
+		self.m[0][1]*=s.x;
+		self.m[0][2]*=s.x;
+		self.m[1][0]*=s.y;
+		self.m[1][1]*=s.y;
+		self.m[1][2]*=s.y;
+		self.m[2][0]*=s.z;
+		self.m[2][1]*=s.z;
+		self.m[2][2]*=s.z;
+
+	def clearScale(self):
+		s=self.getScale();
+		s.x=1.0/s.x
+		s.y=1.0/s.y
+		s.z=1.0/s.z
+		self.scale3x3(s)
+	def set_rotation( self, p_axis, p_phi ):
+		axis_sq = Vector3([p_axis.x*p_axis.x,p_axis.y*p_axis.y,p_axis.z*p_axis.z])
+
+		cosine= math.cos(p_phi);
+		sine= math.sin(p_phi);
+
+		self.m[0][0] = axis_sq.x + cosine * ( 1.0 - axis_sq.x );
+		self.m[0][1] = p_axis.x * p_axis.y *  ( 1.0 - cosine ) + p_axis.z * sine;
+		self.m[0][2] = p_axis.z * p_axis.x * ( 1.0 - cosine ) - p_axis.y * sine;
+
+		self.m[1][0] = p_axis.x * p_axis.y * ( 1.0 - cosine ) - p_axis.z * sine;
+		self.m[1][1] = axis_sq.y + cosine  * ( 1.0 - axis_sq.y );
+		self.m[1][2] = p_axis.y * p_axis.z * ( 1.0 - cosine ) + p_axis.x * sine;
+
+		self.m[2][0] = p_axis.z * p_axis.x * ( 1.0 - cosine ) + p_axis.y * sine;
+		self.m[2][1] = p_axis.y * p_axis.z * ( 1.0 - cosine ) - p_axis.x * sine;
+		self.m[2][2] = axis_sq.z + cosine  * ( 1.0 - axis_sq.z );
+
+	def __init__(self):			
+		self.m=[[1,0,0,0],[0,1,0,0],[0,0,1,0]]
+
+
+class Quat:
+
+	def distance_to(self,v):
+		return math.sqrt( (self.x-v.x)**2 + (self.y-v.y)**2 +  (self.z-v.z)**2+  (self.w-v.w)**2 );
+
+	def __init__(self,p_mat):
+		"""			
+		q=mat.getBlenderMatrix().toQuat();
+		self.x=q.x;
+		self.y=q.y;
+		self.z=q.z;
+		self.w=q.w;		
+		"""	
+		
+		mat=p_mat.copy()
+#create quaternion from 4x3 matrix
+
+		trace = mat.m[0][0] + mat.m[1][1] + mat.m[2][2];
+		temp=[0,0,0,0];
+	
+		if (trace > 0) :
+
+			s =math.sqrt(trace + 1.0);
+			temp[3]=(s * 0.5);
+			s = 0.5 / s;
+			
+			temp[0]=((mat.m[2][1] - mat.m[1][2]) * s);
+			temp[1]=((mat.m[0][2] - mat.m[2][0]) * s);
+			temp[2]=((mat.m[1][0] - mat.m[0][1]) * s);
+
+		else :
+		
+			i=int()
+			if (mat.m[0][0] < mat.m[1][1]):
+				if (mat.m[1][1] < mat.m[2][2]):
+					i=2
+				else:
+					i=1
+			else:
+				if (mat.m[0][0] < mat.m[2][2]):
+					i=2
+				else:
+					i=0
+				
+			j = (i + 1) % 3;  
+			k = (i + 2) % 3;
+			
+			s = math.sqrt(mat.m[i][i] - mat.m[j][j] - mat.m[k][k] + 1.0);
+			temp[i] = s * 0.5;
+			s = 0.5 / s;
+			
+			temp[3] = (mat.m[k][j] - mat.m[j][k]) * s;
+			temp[j] = (mat.m[j][i] + mat.m[i][j]) * s;
+			temp[k] = (mat.m[k][i] + mat.m[i][k]) * s;
+			
+		self.x=temp[0]
+		self.y=temp[1]
+		self.z=temp[2]
+		self.w=temp[3]
+
+def snap_vec(vec):
+	ret=()
+	for x in vec:
+		ret+=( x-math.fmod(x,0.0001), )
+		
+	return vec
+	
+class Surface:
+	
+	
+	def write_to_res(self,res,i):
+		prep="surfaces/"+str(i)+"/"
+		format={}
+		format["primitive"]=4 # triangles
+		format["array_len"]=len(self._verts)
+		format["index_array_len"]=len(self._indices)
+
+		res.add(prep+"format",format)
+
+		if (self._material!=None):
+			res.add(prep+"material",self._material)
+		res.add(prep+"vertex_array",self._verts)
+		res.add(prep+"normal_array",self._normals)
+		res.add(prep+"index_array",self._indices)
+		format_str="vin"
+		
+		if (len(self._tangents)):
+			res.add(prep+"tangent_array",self._tangents)
+			format_str+="t"
+		
+		if (len(self._colors)):
+			res.add(prep+"color_array",self._colors)
+			format_str+="c"
+
+		if (len(self._uvs)):
+			res.add(prep+"tex_uv_array",self._uvs)
+			format_str+="u"
+
+		if (len(self._bone_indices)):
+			res.add(prep+"bone_array",self._bone_indices)
+			format_str+="b"
+			
+		if (len(self._weights)):
+			res.add(prep+"weights_array",self._weights)
+			format_str+="w"
+			
+		# binormals....
+		format["format"]=format_str
+			
+# convert vertices to be compatile with Y_UP
+
+	def fix_vertex_axis(self,v):
+
+		return Vector3( (v.x, v.z, -v.y) );
+
+	def convert(self,applymatrix=None):
+
+		# STEP 1 fix coordinates
+		for i in range(len(self._verts)):
+			self._verts[i]=self.fix_vertex_axis(self._verts[i])
+			self._normals[i]=self.fix_vertex_axis(self._normals[i])
+		if (applymatrix):
+			for i in range(len(self._verts)):
+				self._verts[i]=applymatrix.xform( self._verts[i] )
+				self._normals[i]=applymatrix.xform_basis( self._normals[i] )
+
+		# STEP 2 fix indices
+
+		for i in range(len(self._indices)/3):
+			aux=self._indices[i*3+1]
+			self._indices[i*3+1]=self._indices[i*3+2]
+			self._indices[i*3+2]=aux
+						
+		# STEP 4 compute binormals
+		if (len(self._uvs)):
+			
+			tangents=[ Vector3( (0,0,0 ) ) ] * len(self._verts)
+			binormals=[ Vector3( (0,0,0 ) ) ] * len(self._verts)
+			for i in range(len(self._indices)/3):
+
+				v1 = self._verts[ self._indices[i*3+0] ]
+				v2 = self._verts[ self._indices[i*3+1] ]
+				v3 = self._verts[ self._indices[i*3+2] ]
+				
+				w1 = self._uvs[ self._indices[i*3+0] ] 
+				w2 = self._uvs[ self._indices[i*3+1] ]
+				w3 = self._uvs[ self._indices[i*3+2] ]
+				
+     
+				x1 = v2.x - v1.x
+				x2 = v3.x - v1.x
+				y1 = v2.y - v1.y
+				y2 = v3.y - v1.y
+				z1 = v2.z - v1.z
+				z2 = v3.z - v1.z
+				
+				s1 = w2.x - w1.x
+				s2 = w3.x - w1.x
+				t1 = w2.y - w1.y
+				t2 = w3.y - w1.y
+				
+				r  = (s1 * t2 - s2 * t1);
+				if (r==0):
+					binormal=Vector3((0,0,0))
+					tangent=Vector3((0,0,0))
+				else:
+					tangent = Vector3(((t2 * x1 - t1 * x2) * r, (t2 * y1 - t1 * y2) * r,
+					(t2 * z1 - t1 * z2) * r))
+					binormal = Vector3(((s1 * x2 - s2 * x1) * r, (s1 * y2 - s2 * y1) * r,
+					(s1 * z2 - s2 * z1) * r))							
+					
+				tangents[ self._indices[i*3+0] ] = add_vec( tangents[ self._indices[i*3+0] ], tangent )
+				binormals[ self._indices[i*3+0] ] = add_vec( binormals[ self._indices[i*3+0] ], binormal )
+				tangents[ self._indices[i*3+1] ] = add_vec( tangents[ self._indices[i*3+1] ], tangent )
+				binormals[ self._indices[i*3+1] ] = add_vec( binormals[ self._indices[i*3+1] ], binormal )
+				tangents[ self._indices[i*3+2] ] = add_vec( tangents[ self._indices[i*3+2] ], tangent )
+				binormals[ self._indices[i*3+2] ] = add_vec( binormals[ self._indices[i*3+2] ], binormal )
+				
+				
+			for i in range(len(tangents)):
+				
+				T = tangents[i]
+				T.normalize()
+				B = binormals[i]
+				B.normalize()
+				N=self._normals[i]
+				Tp = T #sub_vec( T, mul_vecs( N, dot_vec( N, T ) ) )
+				#Tp.normalize()
+				Bx = cross_vec( N, Tp )
+				if (dot_vec( Bx, B )<0):
+					Bw=-1.0
+				else:
+					Bw=1.0
+					
+				self._tangents.append(float(Tp.x))
+				self._tangents.append(float(Tp.y))
+				self._tangents.append(float(Tp.z))
+				self._tangents.append(float(Bw))
+		
+		
+		
+	def _insertVertex(self,face,i):
+		
+		index_key=snap_vec((face.v[i].co.x,face.v[i].co.z,face.v[i].co.y))
+		v=Vector3(face.v[i].co)
+
+		if (face.smooth):
+			index_key+=snap_vec((face.v[i].no[0],face.v[i].no[1],face.v[i].no[2]))
+		else:
+			index_key+=snap_vec((face.no[0],face.no[1],face.no[2]))
+
+
+		uv=None
+		if (self._has_uv):
+			uv=face.uv[i]
+			uv=Vector3((uv[0],1.0-uv[1],0)) #save as vector3
+			index_key+=snap_vec((uv.x,uv.y))
+			
+		index=-1
+		if (face.smooth and index_key in self._index_cache):
+			index=self._index_cache[index_key]
+			
+						
+		if (index==-1):
+#no similar vertex exists, so create a new one
+			self._verts+=[v]
+			if (face.smooth):
+				self._normals+=[Vector3(face.v[i].no)]
+			else:
+				self._normals+=[Vector3(face.no)]
+			if (self._has_uv):
+				self._uvs+=[uv]
+			if (self._has_color):
+				self._colors+=[Color((face.col[i].r/255.0,face.col[i].g/255.0,face.col[i].b/255.0,face.col[i].a/255.0))]
+				
+			if (self._vertex_weights!=None):
+				for j in xrange(4):
+					self._bone_indices.append( self._vertex_weights[face.v[i].index][j*2+0] )
+					self._weights.append( self._vertex_weights[face.v[i].index][j*2+1] )
+				
+			index=len(self._verts)-1
+			self._index_cache[index_key]=index
+			
+		self._indices+=[index]
+			
+			
+		
+		
+		
+	
+	def insertFace(self,face):
+
+		if (len(face.v)>=3):
+			self._insertVertex(face,0)
+			self._insertVertex(face,1)
+			self._insertVertex(face,2)
+		if (len(face.v)>=4):
+			self._insertVertex(face,2)
+			self._insertVertex(face,3)
+			self._insertVertex(face,0)
+		
+	def __init__(self):
+		self._mat=0
+		self._verts=[]
+		self._normals=[]
+		self._tangents=[]
+		self._colors=[]
+		self._indices=[]
+		self._uvs=[]
+		self._has_uv=False
+		self._bone_indices=[]
+		self._weights=[]
+		self._vertex_weights=[]
+		self._has_color=False
+		self._material=None
+		self._index_cache={}
+
+
+def make_material(mat,twosided_hint,exporter):
+
+
+	if (mat.getName() in exporter.material_caches):
+		# todo, find twosided and add it
+		#if (twosided_hint):
+		#	material_caches[mat.getName()]._two_sided=True
+		return exporter.material_caches[mat.getName()]
+
+
+	print("doesn't have it")
+		
+	res=ObjectTree(None,"FixedMaterial")
+	res._resource=True
+	res.add("resource/name",mat.getName())
+#color
+	diffuse_col = Color(mat.getRGBCol())
+	diffuse_col.a = 1.0 # mat.getAlpha() this doesn't work..
+	res.add("params/diffuse",diffuse_col)
+	spec_col = Color(mat.getSpecCol())
+	spec_col.r *= mat.getSpec()
+	spec_col.g *= mat.getSpec()
+	spec_col.b *= mat.getSpec()
+	res.add("params/specular",spec_col)
+	
+	res.add("params/specular_exp",mat.getHardness())
+	res.add("params/emission",Color([mat.getEmit(),mat.getEmit(),mat.getEmit()]))
+#flags	
+	res.add("flags/unshaded",bool(mat.getMode()&Blender.Material.Modes['SHADELESS']))
+	res.add("flags/wireframe",bool(mat.getMode()&Blender.Material.Modes['WIRE']))
+	res.add("flags/double_sided",bool(twosided_hint))
+#textures
+
+	have_primary=False
+	have_detail=False
+	detail_mix=1.0
+	default_diffuse = Color((1,1,1,1))
+	default_spec = Color((1,1,1,1))
+	gen_mode=0
+
+	for tx in mat.textures:
+		if (tx==None):
+			continue
+		if (tx.tex.image==None):
+			continue
+		#gen_mode=0
+		coord_mode=0
+		
+		if (tx.texco&Blender.Texture.TexCo['REFL']):
+			gen_mode=1 # reflection
+			coord_mode=3
+		elif (tx.texco&Blender.Texture.TexCo['WIN']):
+			gen_mode=2 # reflection
+			coord_mode=3
+		layer=""
+		
+		if (tx.mtCol and not have_primary):
+			layer="textures/diffuse"
+			have_primary=True
+		elif (tx.mtCol and have_primary and not have_detail):
+			layer="textures/detail"
+			detail_mix = tx.colfac
+			print("colfac: "+str(tx.colfac));
+			have_detail=True
+		elif (tx.mtNor):
+			layer="textures/normal"
+		elif (tx.mtSpec):
+			layer="textures/specular"
+
+		if (layer==""):
+			continue
+
+		img_file = tx.tex.image.getFilename()
+
+		#Agregado por Ariel, trajo muchos problemas, lo saco.
+		#img_file = Blender.sys.expandpath(tx.tex.image.getFilename())
+		#exp_dir = os.path.dirname(exporter.filename)
+		#img_file = os.path.relpath(os.path.abspath(img_file), exp_dir)
+
+		img_file = img_file.replace("\\", "/")
+
+		res.add(layer+"_tc",coord_mode)
+		tex_res = ObjectTree(None,"Texture")
+		tex_res._resource=True
+		tex_res._res_path=img_file
+		
+		res.add(layer,tex_res)
+		
+
+	if (have_detail):
+		res.add("params/detail_mix",detail_mix)
+	if (gen_mode!=0):
+		res.add("tex_gen",gen_mode)
+
+	res._res_path="local://"+str(len(exporter.resource_list))
+
+	exporter.resource_list.append(res)
+
+	res_ref = ObjectTree(None,"Material")
+	res_ref._resource=True
+	res_ref._res_path=res._res_path
+
+
+	exporter.material_caches[mat.getName()]=res_ref
+	return res
+
+def make_mesh_vertex_weights(node,skeleton):
+	
+	mesh = node.getData()
+	verts=[]
+	
+	groups=mesh.getVertGroupNames()
+	if (len(groups)==0):
+		return None
+		
+	idx=0
+	for x in mesh.verts:
+		influences = mesh.getVertexInfluences(idx)
+		inflist=[]
+		for inf in influences:
+			name=inf[0]
+			if (not name in skeleton._bone_map):
+				continue # no bone for group, ignore
+			bone_idx=skeleton._bone_map[name]
+			inflist.append( float(bone_idx) )
+			inflist.append( inf[1] )
+		
+		verts.append(inflist)
+		idx+=1
+
+
+	for i in xrange(len(verts)):
+		
+		swaps=1
+		while( swaps > 0 ):
+
+			swaps=0
+			for j in xrange(len(verts[i])/2-1):
+				#small dirty bubblesort
+				if (verts[i][j*2+1] < verts[i][(j+1)*2+1]):
+
+					verts[i][j*2],verts[i][(j+1)*2]=verts[i][(j+1)*2],verts[i][j*2]
+
+					verts[i][j*2+1],verts[i][(j+1)*2+1]=verts[i][(j+1)*2+1],verts[i][j*2+1]
+
+					swaps+=1
+
+		if ((len(verts[i])/2)>MAX_WEIGHTS_PER_VERTEX):
+			#more than 4 weights, sort by most significant to least significant
+			new_arr=[]
+			
+			for j in xrange(MAX_WEIGHTS_PER_VERTEX*2):
+				new_arr+=[verts[i][j]]
+			
+			verts[i]=new_arr
+			
+		#make all the weights add up to 1
+		max_w=0.0
+		count=len(verts[i])/2
+		
+		for j in range(count):
+			#small dirty bubblesort
+			max_w+=verts[i][j*2+1]
+
+		if (max_w>0.0):
+			mult=1/max_w
+			for j in range(count):
+				verts[i][j*2+1]*=mult		
+		#fill up empty slots
+		while ((len(verts[i])/2)<MAX_WEIGHTS_PER_VERTEX):
+			verts[i]+=[0,0] # add empty index
+		
+	return verts
+	
+	
+
+def make_mesh(node,mesh,skeleton,exporter,applymatrix):
+
+
+	mesh_res=ObjectTree(None,"Mesh")
+	mesh_res._resource=True
+	mesh_res.add("resource/name",mesh.name)
+
+
+	#bake faces and surfaces
+
+	weights=None
+
+	if (skeleton!=None):
+		weights=make_mesh_vertex_weights(node,skeleton)
+
+	surfaces={}
+
+	for f in mesh.faces:
+		if (not f.mat in surfaces):
+			surfaces[f.mat]=Surface()
+			surfaces[f.mat]._vertex_weights=weights
+			surfaces[f.mat]._has_uv=mesh.hasFaceUV()
+			surfaces[f.mat]._has_color=mesh.hasVertexColours()
+			surfaces[f.mat]._mat=f.mat
+
+		surfaces[f.mat].insertFace(f)
+	#bake materials
+
+	for s in surfaces.values():
+		if (s._mat<0 or s._mat>=len(mesh.materials)):
+			continue
+		s._material=make_material(mesh.materials[s._mat],(mesh.mode&Blender.Mesh.Modes['TWOSIDED'])!=0,exporter)
+
+	#write surfaces
+	surf_idx=1
+	for x in surfaces.values():
+		x.convert(applymatrix)
+		x.write_to_res(mesh_res,surf_idx)
+		surf_idx+=1
+
+
+	mesh_res._res_path="local://"+str(len(exporter.resource_list))
+
+	exporter.resource_list.append(mesh_res)
+
+	res_ref = ObjectTree(None,"Mesh")
+	res_ref._resource=True
+	res_ref._res_path=mesh_res._res_path
+
+	return mesh_res
+
+def write_mesh(scene, node, tree,exporter):
+
+
+	mesh = node.getData()
+	tree._type="MeshInstance"
+
+	skeleton=tree
+
+	#find a skeleton
+
+	while( skeleton!=None and skeleton._type!="Skeleton" ):
+		skeleton=skeleton._parent
+
+	mat=get_local_matrix(node)
+
+	applymatrix=None
+
+	if (skeleton):
+		applymatrix=mat
+	else:
+		tree.add("transform/local",mat)
+
+	#is mesh cached
+	if (skeleton==None and mesh.name in exporter.mesh_caches):
+
+		global last_local
+
+		tree.add("mesh/mesh",exporter.mesh_caches[mesh.name])
+		return tree
+
+	#make mesh
+
+	mesh_res = make_mesh(node,mesh,skeleton,exporter,applymatrix)
+	tree.add("mesh/mesh",mesh_res)
+
+	if (skeleton==None):
+		exporter.mesh_caches[mesh.name]=mesh_res
+
+
+	
+	return tree
+
+def write_armature_bone(bone,tree):
+	
+	idx=len(tree._bone_map)
+	parent_idx=-1
+	if (bone.parent != None):
+		parent_idx = tree._bone_map[ bone.parent.name ]
+	
+	prop="bones/"+str(idx)+"/"
+	mat = Matrix4x3()
+
+	mat.setBlenderMatrix( convert_matrix(bone.matrix['ARMATURESPACE']) )
+	if (bone.parent!=None):
+		mat_parent=Matrix4x3()
+		#mat_parent.scale(scale)
+		mat_parent.setBlenderMatrix( convert_matrix( bone.parent.matrix['ARMATURESPACE'] ))
+		mat_parent.invert()
+
+		mat.setBlenderMatrix( mat.getBlenderMatrix() * mat_parent.getBlenderMatrix() )
+
+	else:
+
+		pass; #mat.scale(scale)
+		
+	tree.add(prop+"name",bone.name)
+	tree.add(prop+"parent",parent_idx)
+	tree.add(prop+"rest",mat)
+	
+	tree._bone_map[ bone.name ] = idx # map bone to idx
+	
+	for x in bone.children:
+		
+		write_armature_bone(x,tree)
+	
+	
+
+def write_armature(scene, node, tree,exporter):
+
+	mat=get_local_matrix(node)
+	tree.add("transform/local",mat)
+
+	mesh = node.getData()
+	tree._type="Skeleton"
+	tree._bone_map={}
+	bone_map={}
+
+	for x in node.data.bones.values():
+		
+		if (x.parent != None):
+			continue
+		
+		write_armature_bone(x,tree)
+	return tree
+
+
+def write_camera(scene, node, tree,exporter):
+
+
+	mesh = node.getData()
+	tree._type="Camera"
+
+	mat=get_local_matrix(node)
+	tree.add("transform/local",mat)
+
+	return tree
+
+def write_empty(scene, node, tree,exporter):
+
+	mat=get_local_matrix(node)
+	tree.add("transform/local",mat)
+	tree._type="Spatial"
+
+	return tree
+
+
+
+writers = {"Mesh": write_mesh, "Armature":write_armature, "Empty":write_empty, "Camera":write_camera }
+
+
+def get_local_matrix(node):
+
+	mat_bm=node.getMatrix('worldspace').copy()
+
+	if (node.getParent()!=None):
+		mat_parent_bm=node.getParent().getMatrix('worldspace').copy()
+		mat_parent_bm.invert()
+
+		mat_bm = mat_bm * mat_parent_bm
+
+
+	if (node.getType()=="Camera"):
+		mat2=Matrix4x3()
+		mat2.set_rotation(Vector3([1,0,0]),-math.pi/2.0)
+		mat2bm = mat2.getBlenderMatrix()
+		mat_bm = mat2bm * mat_bm
+
+	mat=Matrix4x3()
+	mat.setBlenderMatrix(convert_matrix(mat_bm))
+
+	return mat
+
+
+def get_unscaled_matrix(node):
+
+	mat_bm=convert_matrix(node.getMatrix('worldspace'))
+	mat=Matrix4x3()
+	mat.setBlenderMatrix(mat_bm)
+	scale=mat.getScale()
+#	print("--"+node.getName()+"  "+str(scale.x)+","+str(scale.y)+","+str(scale.z))
+#	print(mat.m)
+	mat.clearScale()
+#	print(mat.getBlenderMatrix().determinant());
+	
+	if (node.getParent()!=None):
+		mat_parent_bm=convert_matrix(node.getParent().getMatrix('worldspace'))
+		
+		mat_parent=Matrix4x3()
+		mat_parent.setBlenderMatrix(mat_parent_bm)
+		mat_parent.clearScale()
+		mat_parent.invert()
+		mat_scale=mat.getScale()
+		mat_parent_scale=mat.getScale()
+		
+		if (False and node.getName()=="Cylinder.002"):
+			
+			print("Morth1? "+str(mat.m[0][0]*mat.m[1][0]+mat.m[0][1]*mat.m[1][1]+mat.m[0][2]*mat.m[1][2]))
+			print("Morth2? "+str(mat.m[0][0]*mat.m[2][0]+mat.m[0][1]*mat.m[2][1]+mat.m[0][2]*mat.m[2][2]))
+			print("Morth3? "+str(mat.m[1][0]*mat.m[2][0]+mat.m[1][1]*mat.m[2][1]+mat.m[1][2]*mat.m[2][2]))			
+			print("North1? "+str(mat_parent.m[0][0]*mat_parent.m[1][0]+mat_parent.m[0][1]*mat_parent.m[1][1]+mat_parent.m[0][2]*mat_parent.m[1][2]))
+			print("North2? "+str(mat_parent.m[0][0]*mat_parent.m[2][0]+mat_parent.m[0][1]*mat_parent.m[2][1]+mat_parent.m[0][2]*mat_parent.m[2][2]))
+			print("North3? "+str(mat_parent.m[1][0]*mat_parent.m[2][0]+mat_parent.m[1][1]*mat_parent.m[2][1]+mat_parent.m[1][2]*mat_parent.m[2][2]))
+			print(mat_parent.getBlenderMatrix().determinant());
+
+		#print(m			
+		#print(m
+		
+		mat_bm = mat.getBlenderMatrix();
+		mat_parent_bm = mat_parent.getBlenderMatrix();
+		mat_bm = mat_bm * mat_parent_bm
+		mat.setBlenderMatrix(mat_bm)
+		"""
+		mat_parent.mult_by(mat)
+		mat=mat_parent
+		"""
+		"""
+		print("scale_mat "+str(mat_scale.x)+","+str(mat_scale.y)+","+str(mat_scale.z))
+		print("scale_mat_parent "+str(mat_parent_scale.x)+","+str(mat_parent_scale.y)+","+str(mat_parent_scale.z))
+
+		print("orth1? "+str(mat.m[0][0]*mat.m[1][0]+mat.m[0][1]*mat.m[1][1]+mat.m[0][2]*mat.m[1][2]))
+		print("orth2? "+str(mat.m[0][0]*mat.m[2][0]+mat.m[0][1]*mat.m[2][1]+mat.m[0][2]*mat.m[2][2]))
+		print("orth3? "+str(mat.m[1][0]*mat.m[2][0]+mat.m[1][1]*mat.m[2][1]+mat.m[1][2]*mat.m[2][2]))
+		"""
+	#print(m
+	#print(mat.m)
+	wscale=mat.getScale()		
+			
+	return mat,scale
+	
+def write_object(scene,node,tree,exporter):
+	
+	tree_node=ObjectTree(tree,"",node.getName())
+		
+	if writers.has_key(node.getType()):
+		tree_node=writers[node.getType()](scene,node, tree_node,exporter)
+	else:
+		tree_node=None#write_dummy(node,tree)	
+
+	if (tree_node != None):
+
+		for node in get_children_objects(scene,node):
+			write_object(scene, node, tree_node,exporter)
+
+		tree._children+=[tree_node]
+
+
+def export_scene(filename):
+	
+	exporter = ExporterData(filename)
+	scene = None
+	object = None
+
+	scene = Blender.Scene.GetCurrent()
+	if not scene:
+		return
+	tree = ObjectTree(None,"Spatial","Scene")
+	write_scene(scene, tree,exporter)
+	
+	if widget_values["export_lua"]:
+		write_godot_lua(tree, filename)
+	else:
+		write_godot_xml(tree,filename,exporter)
+
+def write_scene(scene, tree,exporter):
+
+	tree._name=scene.getName()
+	for node in get_root_objects(scene):
+		write_object(scene,node, tree,exporter )
+
+""" --------- """
+""" ANIMATION """
+""" --------- """
+
+class Animation:
+	class Track:
+    
+		def insertKey(self,time,mat):	
+
+			ofs = mat.getPos()
+			rot = Quat(mat)
+			scale = mat.getScale();
+
+			self.xform_keys.append( time )
+			self.xform_keys.append( 1.0 ) # transition
+			self.xform_keys.append( ofs.x )
+			self.xform_keys.append( ofs.y )
+			self.xform_keys.append( ofs.z )
+
+			self.xform_keys.append( -rot.x )
+			self.xform_keys.append( -rot.y )
+			self.xform_keys.append( -rot.z )
+			self.xform_keys.append( rot.w )
+
+			self.xform_keys.append( scale.x )
+			self.xform_keys.append( scale.y )
+			self.xform_keys.append( scale.z )
+
+
+		def _optimized(self,arr):
+			_new=[]
+			#remove irrelevant keys
+			for i in range( len(arr) ):
+				if (i>0 and i<(len(arr)-1) and eq_vec(arr[i]["value"],arr[i+1]["value"]) and eq_vec(arr[i]["value"],arr[i-1]["value"])):
+					continue
+				_new.append(arr[i])
+				
+			return _new
+		def optimize(self):
+			#self.loc_keys=self._optimized(self.loc_keys)
+			#self.rot_keys=self._optimized(self.rot_keys)
+			#self.scale_keys=self._optimized(self.scale_keys)
+			 pass
+
+		def _get_track_array3(self,keys):
+			_arr=[]
+			for x in keys:
+				_arr.append(x["time"])
+				v=x["value"]
+				_arr.append(v.x)
+				_arr.append(v.y)
+				_arr.append(v.z)
+			return _arr;
+
+		def _get_track_array4(self,keys):
+			_arr=[]
+			for x in keys:
+				_arr.append(x["time"])
+				v=x["value"]
+				_arr.append(-v.x)
+				_arr.append(-v.y)
+				_arr.append(-v.z)
+				_arr.append(v.w)
+			return _arr;
+
+
+
+		def write_to_res(self,res,i):
+			prep="tracks/"+str(i)+"/"
+			res.add(prep+"type","transform")	
+			res.add(prep+"path",self.path)
+
+			res.add(prep+"keys",self.xform_keys)
+
+		
+		def __init__(self):
+			self.xform_keys=[]
+			self.path=""
+            
+	def make_res(self):
+		
+		res = ObjectTree(None,"Animation")
+		res._resource=True
+		res.add("length",self.length);
+		res.add("loop",self.loop);
+		idx=0
+		for t in self.tracks.values():
+			t.optimize()
+			t.write_to_res(res,idx)
+			idx=idx+1
+		return res
+
+	def __init__(self):
+		self.tracks={}
+		self.fps=30
+		self.length=0
+        
+
+def  write_animation_bone(scene,node,anim,path,bone,frame):
+
+	rest = convert_matrix(bone.matrix['ARMATURESPACE'])
+
+
+	if (bone.parent!=None):
+
+		rest_parent = 	convert_matrix( bone.parent.matrix['ARMATURESPACE'] )
+		rest_parent.invert()
+		rest = rest * rest_parent
+
+	bone_path = path+":"+bone.name;
+
+	if (bone_path not in anim.tracks):
+		t = Animation.Track()
+		t.path=bone_path
+		anim.tracks[bone_path] = t
+	else:
+		t=anim.tracks[bone_path]
+	
+	pose_bone = node.getPose().bones[bone.name]
+	
+
+	pose = convert_matrix(pose_bone.poseMatrix)
+
+	if (bone.parent!=None):
+
+		mat_parent=convert_matrix( pose_bone.parent.poseMatrix )
+		mat_parent.invert()
+
+		pose = pose * mat_parent
+
+	# pose should actually be the transform from pose to rest
+
+	rest.invert()
+	pose = pose * rest
+
+	mat43 = Matrix4x3()
+	mat43.setBlenderMatrix(pose)
+
+	t.insertKey(frame/float(anim.fps),mat43)
+
+			
+
+def write_animation_armature(scene,node,anim,path,frame):
+
+	for x in node.data.bones.values():
+				
+		write_animation_bone(scene,node,anim,path,x,frame)
+
+
+def write_animation_object(scene,node,anim,path,frame,parent_type):
+
+	if not writers.has_key(node.getType()):
+		return
+
+
+	new_path=path+node.getName()
+
+	if (path!=""):
+		path=path+"/"+node.getName()
+	else:
+		path=node.getName()
+
+	if (node.getType()=="Armature" or node.getIpo()!=None):
+		#only export if it has animation
+		if (path not in anim.tracks):
+			t = Animation.Track()
+			t.path=path
+			anim.tracks[path] = t
+		else:
+			t=anim.tracks[path]
+
+
+		if (parent_type!="Armature"):
+			t.insertKey(frame/float(anim.fps),get_local_matrix(node))
+
+		if (node.getType()=="Armature"):
+			write_animation_armature(scene,node,anim,path,frame)
+			return # children of armature will not be animated
+		
+
+	for node in get_children_objects(scene,node):
+		write_animation_object(scene, node, anim, path, frame, node.getType())
+
+
+def write_animation(scene, anim, frame):
+
+	for node in get_root_objects(scene):
+		write_animation_object(scene,node, anim,"",frame,"")
+
+def export_animation(filename, end_frame = -1, loop = None):
+
+	anim = Animation()
+	anim.fps=Blender.Scene.GetCurrent().getRenderingContext().fps
+
+	if loop == None:
+		anim.loop=widget_values["anim_loop"]
+	else:
+		anim.loop = loop
+
+	print("end_frame param: %d"%end_frame)
+	if end_frame == -1:
+		end_frame = Blender.Get("endframe")
+
+	anim.length=(end_frame-Blender.Get("staframe")+1)/float(anim.fps)
+	print("frames "+str((end_frame-Blender.Get("staframe")+1)))
+	print("start: %d, end %d, fps %d, length %f" % (Blender.Get("staframe"), end_frame, anim.fps, anim.length));
+
+	scene = Blender.Scene.GetCurrent()
+	if not scene:
+		return
+		
+	for frame in range( Blender.Get('staframe'), end_frame+1):
+		Blender.Set("curframe",frame)
+		write_animation(scene,anim,frame)
+
+	anim_res = anim.make_res()
+	res_name = filename
+
+	if(res_name.rfind(".")!=-1):
+		res_name=res_name[:res_name.rfind(".")]
+	if(res_name.rfind("/")!=-1):
+		res_name=res_name[res_name.rfind("/")+1:]
+	if(res_name.rfind("\\")!=-1):
+		res_name=res_name[res_name.rfind("\\")+1:]
+
+	anim_res.add("resource/name",res_name)
+
+	if widget_values['export_lua']:
+		write_godot_lua(anim_res,filename)
+	else:
+		write_godot_xml(anim_res,filename,None)
+
+""" -------------- """
+""" SERIALIZATION """
+""" ------------- """
+
+def tw(f,t,st):
+	for x in range(t):
+		f.write("\t")
+	nl = True
+	if len(st) > 0 and st[-1] == "#":
+		nl = False
+		st = st[:-1]
+	f.write(st)
+	if nl:
+		f.write("\n")
+
+def write_property_godot(f,tab,name,value):
+	
+#	print(str(value))
+#	print(type(value))
+	if (type(value)==str):
+		
+		tw(f,tab,'<string name="'+name+'">')
+		value=value.replace('"','\\&quot;')
+		tw(f,tab+1,'"'+value+'"');
+		tw(f,tab,'</string>')
+	elif (type(value)==bool):
+		tw(f,tab,'<bool name="'+name+'">')
+		if (value):
+			tw(f,tab+1,'True');
+		else:
+			tw(f,tab+1,'False');
+		tw(f,tab,'</bool>')
+	elif (type(value)==int):
+		tw(f,tab,'<int name="'+name+'">')
+		tw(f,tab+1,str(value));
+		tw(f,tab,'</int>')
+	elif (type(value)==float):
+		tw(f,tab,'<real name="'+name+'">')
+		tw(f,tab+1,str(value));
+		tw(f,tab,'</real>')
+	elif (type(value)==dict):
+		tw(f,tab,'<dictionary name="'+name+'">')
+		for x in value:
+			write_property_godot(f,tab+1,"key",x)
+			write_property_godot(f,tab+1,"value",value[x])
+		tw(f,tab,'</dictionary>')
+	elif (isinstance(value,ObjectTree)):
+		if (not value._resource):
+			print("ERROR: Not a resource!!")
+			return
+		if (value._res_path!=""):
+			
+			tw(f,tab,'<resource name="'+name+'" resource_type="'+value._type+'" path="'+value._res_path+'">')
+			tw(f,tab,'</resource>')
+		else:
+			tw(f,tab,'<resource name="'+name+'" resource_type="'+value._type+'">')
+			tw(f,tab+1,'<object type="'+value._type+'">')
+			tw(f,tab+2,'<resource>')
+			
+			for x in value._properties:
+				write_property_godot(f,tab+3,x[0],x[1])
+			
+			tw(f,tab+2,'</resource>')
+			tw(f,tab+1,'</object>')			
+			tw(f,tab,'</resource>')
+	elif (isinstance(value,Color)):
+		tw(f,tab,'<color name="'+name+'">')
+		tw(f,tab+1,str(value.r)+", "+str(value.g)+", "+str(value.b)+", "+str(value.a));
+		tw(f,tab,'</color>')
+	elif (isinstance(value,Vector3)):
+		tw(f,tab,'<vector3 name="'+name+'">')
+		tw(f,tab+1,str(value.x)+", "+str(value.y)+", "+str(value.z));
+		tw(f,tab,'</vector3>')
+	elif (isinstance(value,Quat)):
+		tw(f,tab,'<quaternion name="'+name+'">')
+		tw(f,tab+1,str(-value.x)+", "+str(-value.y)+", "+str(-value.z)+", "+str(value.w));
+		tw(f,tab,'</quaternion>')
+	elif (isinstance(value,Matrix4x3)): # wtf, blender matrix?
+		tw(f,tab,'<transform name="'+name+'" >')
+		s=""
+		for i in range(3):
+			for j in range(3):
+				s+=", "+str(value.m[j][i])
+	
+		for i in range(3):
+			s+=", "+str(value.m[i][3])
+		s=s[1:]
+		tw(f,tab+1,s);
+		tw(f,tab,'</transform>')
+		
+	elif (type(value)==list):
+		if (len(value)==0):
+			return
+		first=value[0]
+		if (type(first)==int):
+			
+			tw(f,tab,'<int_array name="'+name+'" len="'+str(len(value))+'">')
+			arr=""
+			for i in range(len(value)):
+				if (i>0):
+					arr+=", "
+				arr+=str(value[i])
+			tw(f,tab+1,arr)
+			tw(f,tab,'</int_array>')
+		elif (type(first)==float):
+			
+			tw(f,tab,'<real_array name="'+name+'" len="'+str(len(value))+'">')
+			arr=""
+			for i in range(len(value)):
+				if (i>0):
+					arr+=", "
+				arr+=str(value[i])
+			tw(f,tab+1,arr)
+			tw(f,tab,'</real_array>')
+		elif (type(first)==str):
+			
+			tw(f,tab,'<string_array name="'+name+'" len="'+str(len(value))+'">')
+			arr=""
+			for i in range(len(value)):
+				if (i>0):
+					arr+=", "
+				arr+=str('"'+value[i]+'"')
+			tw(f,tab+1,arr)
+			tw(f,tab,'</string_array>')
+		elif (isinstance(first,Vector3)):
+			
+			tw(f,tab,'<vector3_array name="'+name+'" len="'+str(len(value))+'">')
+			arr=""
+			for i in range(len(value)):
+				if (i>0):
+					arr+=", "
+				arr+=str(str(value[i].x)+','+str(value[i].y)+','+str(value[i].z))
+			tw(f,tab+1,arr)
+			tw(f,tab,'</vector3_array>')
+		elif (isinstance(first,Color)):
+			
+			tw(f,tab,'<color_array name="'+name+'" len="'+str(len(value))+'">')
+			arr=""
+			for i in range(len(value)):
+				if (i>0):
+					arr+=", "
+				arr+=str(str(value[i].r)+','+str(value[i].g)+','+str(value[i].b)+','+str(value[i].a))
+			tw(f,tab+1,arr)
+			tw(f,tab,'</color_array>')
+		elif (type(first)==dict):
+			
+			tw(f,tab,'<array name="'+name+'" len="'+str(len(value))+'">')
+			for i in range(len(value)):
+				write_property_godot(f,tab+1,str(i+1),value[i])
+			tw(f,tab,'</array>')
+				
+	
+
+def write_node_godot(f,tab,tree,path,root=False):
+
+	if (root or not tree._resource):
+		tw(f,tab,'<object type="'+tree._type+'">')
+		tw(f,tab+1,'<dictionary name="__xml_meta__" type="dictionary">')
+		write_property_godot(f,tab+3,"key","name")
+		write_property_godot(f,tab+3,"value",tree._name)
+		if (path!=""):
+			write_property_godot(f,tab+3,"key","path")
+			write_property_godot(f,tab+3,"value",path)
+
+		tw(f,tab+1,'</dictionary>')
+	else:
+		if (tree._res_path!=""):
+			tw(f,tab,'<resource type="'+tree._type+'" path="'+tree._res_path+'">')
+		else:
+			tw(f,tab,'<resource type="'+tree._type+'">')
+
+
+	for x in tree._properties:
+		write_property_godot(f,tab+1,x[0],x[1])
+
+	if (root or not tree._resource):
+		tw(f,tab,'</object>')
+	else:
+		tw(f,tab,'</resource>')
+
+	if (path==""):
+		path="."
+	else:
+		if (path=="."):
+			path=tree._name
+		else:
+			path=path+"/"+tree._name
+	#path="."
+
+	for x in tree._children:
+		write_node_godot(f,tab,x,path)
+
+def write_godot_xml(tree,fname,exporter):
+
+	f=open(fname,"wb")
+	f.write('<?xml version="1.0" encoding="UTF-8" ?>\n')
+	if (not tree._resource):
+		f.write('<object_file magic="SCENE" version="0.99">\n')
+	else:
+		f.write('<object_file magic="RESOURCE" version="0.99">\n')
+		
+	tab=1
+
+	if (exporter!=None):
+		for x in exporter.resource_list:
+			write_node_godot(f,tab,x,"")
+
+	write_node_godot(f,tab,tree,"",True)
+	f.write('</object_file>\n')
+
+
+def write_property_lua(f, tab, name, value, pref = ""):
+
+	tw(f, tab, '%s{ name = "%s",' % (pref, name))
+	tab = tab + 1
+
+	if (type(value)==str):
+
+		tw(f, tab, 'value = "%s",' % value)
+		tw(f, tab, 'type = "string",')
+
+	elif (type(value)==bool):
+
+
+		if (value):
+			tw(f, tab, 'value = true,')
+		else:
+			tw(f, tab, 'value = false,')
+	
+		tw(f, tab, 'type = "bool",')
+
+	elif (type(value)==int):
+
+		tw(f, tab, 'type = "int",')
+		tw(f, tab, 'value = %d,' % value)
+
+	elif (type(value)==float):
+
+		tw(f, tab, 'type = "real",')
+		tw(f, tab, 'value = %f,' % value)
+
+	elif (type(value)==dict):
+		
+		tw(f, tab, 'type = "dictionary",')
+		for x in value:
+			write_property_lua(f,tab,x,value[x])
+
+	elif (isinstance(value,ObjectTree)):
+		if (not value._resource):
+			print("ERROR: Not a resource!!")
+			tw(f, tab-1, "},")
+			return
+
+		tw(f, tab, 'type = "resource",')
+		tw(f, tab, 'resource_type = "%s",' % value._type)
+
+		if (value._res_path!=""):
+	
+			tw(f, tab, 'path = "%s",' % value._res_path)
+	
+		else:
+
+			tw(f, tab, "value = {")
+			tab = tab + 1
+			tw(f, tab, 'type = "%s",' % value._type)
+			
+			for x in value._properties:
+				write_property_lua(f,tab,x[0],x[1])
+			
+			tab = tab - 1
+			tw(f, tab, "},")
+			
+	elif (isinstance(value,Color)):
+		
+		tw(f, tab, 'type = "color",')
+		tw(f, tab, 'value = { %.20f, %.20f, %.20f, %.20f },' % (value.r, value.g, value.b, value.a))
+		
+	elif (isinstance(value,Vector3)):
+
+		tw(f, tab, 'type = "vector3",')
+		tw(f, tab, 'value = { %.20f, %.20f, %.20f },' % (value.x, value.y, value.z))
+
+	elif (isinstance(value,Quat)):
+
+		tw(f, tab, 'type = "quaternion",')
+		tw(f, tab, 'value = { %.20f, %.20f, %.20f, %.20f },' % (-value.x, -value.y, -value.z, value.w))
+
+	elif (isinstance(value,Matrix4x3)): # wtf, blender matrix?
+	
+		tw(f, tab, 'type = "transform",')
+		tw(f, tab, 'value = { #')
+		for i in range(3):
+			for j in range(3):
+				f.write("%.20f, " % value.m[j][i])
+		
+		for i in range(3):
+			f.write("%.20f, " % value.m[i][3])
+		
+		f.write("},\n")
+	
+	elif (type(value)==list):
+		if (len(value)==0):
+			tw(f, tab-1, "},")
+			return
+		first=value[0]
+		if (type(first)==int):
+
+			tw(f, tab, 'type = "int_array",')
+			tw(f, tab, 'value = { #')
+			for i in range(len(value)):
+				f.write("%d, " % value[i])
+			f.write(" },\n")
+
+		elif (type(first)==float):
+
+			tw(f, tab, 'type = "real_array",')
+			tw(f, tab, 'value = { #')
+			for i in range(len(value)):
+				f.write("%.20f, " % value[i])
+			f.write(" },\n")
+
+
+		elif (type(first)==str):
+			
+			tw(f, tab, 'type = "string_array",')
+			tw(f, tab, 'value = { #')
+			for i in range(len(value)):
+				f.write('"%s", ' % value[i])
+			f.write(" },\n")
+
+		elif (isinstance(first,Vector3)):
+
+			tw(f, tab, 'type = "vector3_array",')
+			tw(f, tab, 'value = { #')
+			for i in range(len(value)):
+				f.write("{ %.20f, %.20f, %.20f }, " % (value[i].x, value[i].y, value[i].z))
+			f.write(" },\n")
+
+		elif (isinstance(first,Color)):
+
+			tw(f, tab, 'type = "color_array",')
+			tw(f, tab, 'value = { #')
+			for i in range(len(value)):
+				f.write("{ %.20f, %.20f, %.20f, %.20f }, " % (value[i].r, value[i].g, value[i].b, value[i].a))
+			f.write(" },\n")
+
+		elif (type(first)==dict):
+			
+			tw(f, tab, 'type = "dict_array",')
+			tw(f, tab, 'value = {')
+			
+			for i in range(len(value)):
+				write_property_lua(f,tab+1,str(i+1),value[i])
+			
+			tw(f, tab, '},')
+			
+
+	tw(f, tab-1, "},")
+
+
+""" -------------- """
+""" SERIALIZATION LUA """
+""" ------------- """
+
+def write_node_lua(f,tab,tree,path):
+
+	tw(f, tab, '{ type = "%s",' % tree._type)
+	
+	if not tree._resource:
+		tw(f, tab+1, 'meta = {')
+		write_property_lua(f, tab+3, "name", tree._name)
+		if path != "":
+			write_property_lua(f, tab+3, "path", path)
+		tw(f, tab+1, '},')
+	
+	tw(f, tab+1, "properties = {")
+	for x in tree._properties:
+		write_property_lua(f,tab+2,x[0],x[1])
+	tw(f, tab+1, "},")
+	
+	tw(f, tab, '},')
+
+
+	if (path==""):
+		path="."
+	else:
+		if (path=="."):
+			path=tree._name
+		else:
+			path=path+"/"+tree._name
+	#path="."
+	for x in tree._children:
+		write_node_lua(f,tab,x,path)
+
+def write_godot_lua(tree,fname):
+	f=open(fname,"wb")
+	f.write("return {\n")
+
+	f.write('\tmagic = "SCENE",\n')
+	tab = 1
+
+	write_node_lua(f,tab,tree,"")
+
+	f.write("}\n\n")
+
+		
+widget_values={}
+
+def action_path_change_callback(event, val):
+
+	def callback(fname):
+		widget_values["actions_scheme"] = fname
+	Blender.Window.FileSelector(callback, "Save Action Scheme Name", widget_values["actions_scheme"])
+
+def scene_path_change_callback(event,val):
+	
+	def callback(fname):
+		widget_values["scene_path"]=fname
+		
+	Blender.Window.FileSelector(callback, "Save Scene XML",widget_values["scene_path"])
+
+def scene_export_callback(event,val):
+	export_scene( widget_values["scene_path"] )
+
+def scene_lamps_cameras_changed(event,val):
+
+	widget_values["scene_lamps_cameras"]=val
+
+def anim_path_change_callback(event,val):
+	
+	def callback(fname):
+		widget_values["anim_path"]=fname
+		
+	Blender.Window.FileSelector(callback, "Save Anim XML",widget_values["anim_path"])
+
+def is_number(n):
+
+	try:
+		int(n)
+	except:
+		return False
+	return True
+
+def action_export_callback(event, val):
+
+	import string
+
+	idx = widget_values["actions_scheme"].rfind(".")
+	if idx == -1:
+		pref = widget_values["actions_scheme"]
+		ext = ".xml"
+	else:
+		pref = widget_values["actions_scheme"][:idx]
+		ext = widget_values["actions_scheme"][idx:]
+
+	print("scheme is ", pref, ext)
+
+	actions = Blender.Armature.NLA.GetActions()
+	for k in actions.keys():
+
+		l = string.split(k, "$");
+		if len(l) <= 1:
+			continue
+
+		loop = 1
+		endf = 0
+		for v in l:
+			if v == "nl":
+				loop = 0
+			if is_number(v):
+				endf = int(v)
+
+		if endf == 0:
+			continue
+
+		fname = pref + l[0] + ext
+		print("fname is "+fname)
+
+		objects = Blender.Object.Get()
+		for o in objects:
+			if o.getType() == "Armature":
+				actions[k].setActive(o)
+
+		print("writing with duration "+str(endf))
+		export_animation(fname, endf, loop)
+
+def anim_export_callback(event,val):
+	export_animation( widget_values["anim_path"] )
+
+def anim_fps_changed(event,val):
+
+	widget_values["anim_fps"]=val
+
+def anim_selected_changed(event,val):
+
+	widget_values["anim_selected"]=val
+
+def anim_loop_changed(event,val):
+
+	widget_values["anim_loop"]=val
+
+def export_lua_changed(event, val):
+	widget_values["export_lua"] = val
+	
+def close_script(event,val):
+#force a bug, because otherwise blender won't unload the script
+	Blender.Draw.Exit()
+
+def draw():
+	Blender.Draw.Label("Godot Export v."+VERSION+"."+godot_revision+" (c) 2008 Juan Linietsky, Ariel Manzur.", 10,260,400,10);
+	Blender.Draw.Label("Export Scene", 20,200,150,10);
+	Blender.Draw.String(widget_values["scene_path"], 10,40, 170, 300, 20, "",398)
+	Blender.Draw.Button("Choose", 0,340, 170, 70, 20, "",scene_path_change_callback)
+	Blender.Draw.Button("Export", 0,410, 170, 70, 20, "",scene_export_callback)
+	Blender.Draw.Toggle("Lamps & Cameras", 0,40, 140, 140, 20, widget_values["scene_lamps_cameras"],"",scene_lamps_cameras_changed)
+
+	Blender.Draw.Label("Export Animation", 20,120,150,10);
+	Blender.Draw.String(widget_values["anim_path"], 11, 40, 90, 300, 20, "",398)
+	Blender.Draw.Button("Choose", 0,340, 90, 70, 20, "",anim_path_change_callback)
+	Blender.Draw.Button("Export", 0,410, 90, 70, 20, "",anim_export_callback)
+	Blender.Draw.Slider("FPS: ", 0, 40, 60, 120, 20,widget_values["anim_fps"],1,60,0,"",anim_fps_changed)
+	Blender.Draw.Toggle("Only Selected", 0,180, 60, 120, 20, widget_values["anim_selected"],"",anim_selected_changed)
+	Blender.Draw.Toggle("Loop", 0,320, 60, 60, 20, widget_values["anim_loop"],"",anim_loop_changed)
+	Blender.Draw.Toggle("Export Lua", 0, 400, 60, 60, 20, widget_values["export_lua"], "", export_lua_changed)
+
+	Blender.Draw.Label("Export Actions", 20,45,150,10);
+	Blender.Draw.Label("Prefix", 40, 20, 50, 10)
+	Blender.Draw.String(widget_values["actions_scheme"], 0, 40, 20, 300, 20, "",398)
+	Blender.Draw.Button("Choose", 0,340, 20, 70, 20, "",action_path_change_callback)
+	Blender.Draw.Button("Export", 0,410, 20, 70, 20, "",action_export_callback)
+#	#	Blender.Draw.Button("Close", 0,410, 20, 70, 20, "",close_script)
+
+widget_values["scene_path"]="scene.xml"
+widget_values["anim_path"]="animation.xres"
+widget_values["anim_fps"]=25
+widget_values["anim_selected"]=0
+widget_values["anim_loop"]=1
+widget_values["scene_lamps_cameras"]=0
+widget_values["export_lua"]=0
+widget_values["actions_scheme"] = "action_.xml"
+
+def event(ev, val):
+	return None
+	
+def button_event(ev):
+	return None
+
+Blender.Draw.Register(draw, event, button_event)