Help: Plug in bug

genma saotome · 12 Jul 2009, 17:57

I'm not a programmer and I need some help fixing a ruby plug-in. The author wrote it largely as an educational exercise (it seemed to work as he now has a job with a cad company) and he is no longer available to deal with this problem. It's a simple export to game format plug-in with one flaw: it doesn't export the correct position of a manually moved texture when the poly displaying that texture is in a component. If the poly is not in a component, any adjustment to the textures position exports properly.

I'd would be very grateful if someone here was willing to take a look at the code and see if the problem jumps out / is easilly corrected.

WRT copyright: Any suggested fix will be returned to the author (on the chance he wants it). I'll edit my own copy for my own use.

###======================================================
# Copyright © 2006-2008. All rights reserved.
# version 1.0 24th June 2006.
# version 1.3 29/2/2008 - adjusted for polymaster

###======================================================
# THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#-----------------------------------------------------------------------------

require "3dmath.rb"


#####################################################
# Single class instance
class SFile
 attr_accessor ;name, ;fileName, ;newFolder, ;fh , ;specular, ;message

	# scan the model groups for geometry
	def scanModel1(startEnt,parentSeg,dlevel,trans,lay)
		
		showFaces=true
		
		# if component instance, set grp to be the definition
		grp=startEnt
		if(grp.kind_of? Sketchup;;ComponentInstance) then
			# matrix id
			id=parentSeg
			trans=Geom;;Transformation.new() if not trans
			trans =  trans * grp.transformation
			# get component definition
			grp = grp.definition
		else
			# grp could be a group or a model
			#
			# @lastMatrixid is nil for first LOD, 0+ for later passes
			if @lastMatrixid then
				id=@lastMatrixid
				oMatrix=@matrices[id]
				@lastMatrixid+=1
			else
				oMatrix=Matrix.new()
				oMatrix.polys=0
		
				if(grp.kind_of? Sketchup;;Model) then
					oMatrix.name = "main"
				else
					oMatrix.name=grp.name.tr(" ","_")
				end
				
				oMatrix.name="default" if oMatrix.name.length==0
				
				oMatrix.name = "x" + oMatrix.name if oMatrix.name =~ /^\d/
				if parentSeg>=0 then
					# get the transform matrix
					oMatrix.setFromSU startEnt.transformation.to_a
				end
				
				# count faces
				
				id=@matrices.length
				
				@matrices.push oMatrix
			end
			# if group lod
			if id>0 then
				showFaces=(dlevel==0 or grp.lod==0 or grp.lod >= lay)
			end
			@distance_levels[dlevel].hierarchy.push parentSeg
		end
		
		# scan faces
		if showFaces then
			for ent in grp.entities
				if(ent.kind_of? Sketchup;;Face) then
					if dlevel==0 or ent.lod==0 or ent.lod >= lay then
						scanVerts ent,id,startEnt,dlevel,trans
					end
				end
			end
		end
		
		# recursive call to sub groups
		for ent in grp.entities
		
			# scan sub groups
			if(ent.kind_of? Sketchup;;Group)
				scanModel1 ent, id,dlevel,trans,lay
				
			# don't show instances if group is disabled
			elsif( ent.kind_of? Sketchup;;ComponentInstance and showFaces )
				# ignore component if it'd LOD is not visible
				if dlevel==0 or ent.lod==0 or ent.lod >= lay then
					scanModel1 ent, id,dlevel,trans,lay
				end
				
			elsif( ent.kind_of? Sketchup;;ComponentDefinition )
				scanModel1 ent, id,dlevel,trans,lay
				
 			end
		end
	end
	
	# save the vertices for a face
	def scanVerts(o,id,ent,dlevel,trans)
		# o is a face
		# ent - original entity
		
		mf=o.material
		mb=o.back_material
		scaleu,scalev,shade1,shade2=nil,nil,nil,nil
		polys=0
		
		# get the instance material if definition material is nil
		if not mf 
			mf=ent.material if ent.kind_of? Sketchup;;ComponentInstance
			if mf and mf.texture then
				scaleu=mf.texture.width.inch
				scalev=mf.texture.height.inch
			end
		end
		
		mat,matb=nil,nil
		uvhelp=o.get_UVHelper(true, true, @tw)
		
		subobj1=@distance_levels[dlevel].sub_objects.at(0)
		subobj2=subobj1

		mesh = o.mesh 7
		p1,p2,p3 = 0
		pr2,fNormal2,shade2,pstat2,vst2,lmc2,vset2,nx2=nil,nil,nil,nil,nil,nil,nil,nil
		pr1,fNormal1,shade1,pstat1,vst1,lmc1,vset1,nx1=nil,nil,nil,nil,nil,nil,nil,nil
		
		if mf or not mb
			fNormal1=findItem(o.normal,@normals)
			# use front face material		
			mat = findTexture(mf)
			
			shade1=findShader(mf)
			lmc1=findLightCnf(shade1)
			vst1=findVState(mf,id,lmc1)
			
			# calc prim_state
			ps=SPState.new()
			ps.shader=shade1
			ps.lightCfg=lmc1
			ps.vState=vst1
			ps.tex_idxs.push mat if mat
			# gloss
			if @light_model_cfgs.at(lmc1)==2 then
				img=@images.index("env_map.ace")
				# compare image properties
				ps.tex_idxs.push @textures.index(img)
			end


			# no material alpha is for solid/transparent
			# alpha of 99% is for alpha but no sub-object
			# 98% and lower will create a sub-object for alpha sorting
			
			if mf
				# set alphatest to 1 for transparent, 0 for solid or alpha
				if mf.texture
					stex =  mf.texture.filename.upcase
					if stex.index(".TGA") then
						ps.alphatestmode=1
					end
				end
				if mf.alpha < 1.0
					ps.alphatestmode=0
					ps.priority=mf.alpha*100
					if ps.priority<99
						subobj1=setSubObj(dlevel)
					end
				end
			end
	
	
	
			pstat1=findItem(ps,@prim_states)
			
			findItem shade1,subobj1.shaders
			findItem lmc1,subobj1.lightcfgs
			
			vset=SVtxset.new(vst1)
			vset1=findItem(vset,subobj1.vtx_sets)
			
			node= SGeomnode.new(id)
			nx1=findItem node,subobj1.geometry_nodes
			findItem pstat1,subobj1.geometry_nodes[nx1].pStates
			
			pr1=getPrim(subobj1,vset1,pstat1)
		end
		
		if mb
			fNormal2=findItem(o.normal.reverse,@normals)
			matb=findTexture(mb)
			shade2=findShader(mb)
			lmc2=findLightCnf(shade2)
			vst2=findVState(mb,id,lmc2)

			# calc prim_state
			ps=SPState.new()
			ps.shader=shade2
			ps.lightCfg=lmc2
			ps.vState=vst2
			ps.tex_idxs.push matb if matb
			
			if @light_model_cfgs.at(lmc2)==2 then
				img=@images.index("env_map.ace")
				# compare image properties
				ps.tex_idxs.push @textures.index(img)
			end
			
			# set alphatest to 1 for transparent, 0 for solid or alpha
			if mb.texture
				stex =  mb.texture.filename.upcase
				if stex.index(".TGA") then
					ps.alphatestmode=1
				end
			end
			
			if mb.alpha < 1.0 
				ps.alphatestmode=0
				ps.priority=mb.alpha*100
				if ps.priority<99
					subobj2=setSubObj(dlevel)
				end
			end
			pstat2=findItem(ps,@prim_states)
		
			findItem shade2,subobj2.shaders
			findItem lmc2,subobj2.lightcfgs
			vset=SVtxset.new(vst2)
			vset2=findItem(vset,subobj2.vtx_sets)
			
			node= SGeomnode.new(id)
			nx2=findItem node,subobj2.geometry_nodes
			findItem pstat2,subobj2.geometry_nodes[nx2].pStates
			
			pr2=getPrim(subobj2,vset2,pstat2)
		end
		
		1.upto(mesh.count_polygons) do |j|
			p3,p2,p1 = mesh.polygon_at(j)
			
			p1 = p1.abs
			pt1=mesh.point_at p1
			p2 = p2.abs
			pt2=mesh.point_at p2
			p3 = p3.abs
			pt3=mesh.point_at p3
			if trans
				pt1.transform! trans
				pt2.transform! trans
				pt3.transform! trans
			end
			
			# make sure we have a triangle
			if  not pt3.on_line? [pt1,pt2]
			
				if mf or not mb
					@bb.add pt1
					@bb.add pt2
					@bb.add pt3
					if mat
						uv1=uvhelp.get_front_UVQ pt1
						uv1.x/=scaleu if scaleu
						uv1.y/=scalev if scalev
					
						uv2=uvhelp.get_front_UVQ pt2
						uv2.x/=scaleu if scaleu
						uv2.y/=scalev if scalev
					
						uv3=uvhelp.get_front_UVQ pt3
						uv3.x/=scaleu if scaleu
						uv3.y/=scalev if scalev
					else
						uv1,uv2,uv3=nil,nil,nil
					end
					pn=mesh.normal_at(p1)
					pn.transform! trans if trans
					pr1.vert_idxs.push storeVertex(subobj1,pt1,pn,uv1,vset1)
					pn=mesh.normal_at(p2)
					pn.transform! trans if trans
					pr1.vert_idxs.push storeVertex(subobj1,pt2,pn,uv2,vset1)
					pn=mesh.normal_at(p3)
					pn.transform! trans if trans
					pr1.vert_idxs.push storeVertex(subobj1,pt3,pn,uv3,vset1)
					
					subobj1.faceNormals +=1
					polys+=1
					pr1.normal_idxs.push fNormal1
					subobj1.geometry_nodes[nx1].count+=1
					
					#print uv1.to_s + "\n" + uv2.to_s + "\n" + uv3.to_s + "\n"
				end
				if mb then
					if matb
						uv1=uvhelp.get_back_UVQ pt1
						uv2=uvhelp.get_back_UVQ pt2
						uv3=uvhelp.get_back_UVQ pt3
					else
						uv1,uv2,uv3=nil,nil,nil
					end
					
					# adjust order if reflected odd number of times
					if trans
						if trans.to_a[0]*trans.to_a[5]*trans.to_a[10]<0
							p3,p1=p1,p3
							uv3,uv1=uv1,uv3
							pt3,pt1=pt1,pt3
						end
					end
					
					# reverse order
					pn=mesh.normal_at(p3).reverse
					pn.transform! trans if trans
					pr2.vert_idxs.push storeVertex(subobj2,pt3,pn,uv3,vset2)
					pn=mesh.normal_at(p2).reverse
					pn.transform! trans if trans
					pr2.vert_idxs.push storeVertex(subobj2,pt2,pn,uv2,vset2)
					pn=mesh.normal_at(p1).reverse
					pn.transform! trans if trans
					pr2.vert_idxs.push storeVertex(subobj2,pt1,pn,uv1,vset2)
					
					#print uv1.to_s + "\n" + uv2.to_s + "\n" + uv3.to_s + "\n"

					subobj2.faceNormals +=1
					polys+=1
					pr2.normal_idxs.push fNormal2
					subobj2.geometry_nodes[nx2].count+=1
				end
			end
		end
		@matrices[id].polys+=polys if dlevel==0
	end
	
	def storeVertex(so,p,n,u,vset)
		
		ip=findItem(p,@points)
		ix=findItem(n,@normals)
		iu=findItem(u,@uv_points)
		vert=SVertex.new
		vert.pointIdx=ip
		vert.normalIdx=ix
		vert.vertex_uvs.push iu if u
	
		findItem(vert,so.vtx_sets[vset].vertices)
	end
	
	def setSubObj(dl)
		if @distance_levels[dl].sub_objects.length==1 then
			so=SSObject.new()
			@distance_levels[dl].sub_objects.push so
			so.flags="00000500"
			so.vol=0
			return so
		else
			return @distance_levels[dl].sub_objects[1]
		end
	end

	def getPrim(so,vs,ps)
		prim=SPrimitive.new
		prim.primstate=ps
		x=so.vtx_sets[vs]
		
		# 2 primitive entries
		prind=findItem prim,x.primitives
		
		if prind==(x.primitives.length-1) then
			x.primitives.push SPrimitive.new()
		end
		
		prind+=1
		pr=x.primitives[prind]
		while pr.normal_idxs.length>2700 and not pr.primstate do
			# at very end - add new one
			if prind==(x.primitives.length-1) then
				x.primitives.push SPrimitive.new()
			end
			prind+=1
			pr=x.primitives[prind]
		end
		if pr.primstate then
			x.primitives[prind]=[SPrimitive.new(),pr]
			x.primitives.flatten!
		end
		return x.primitives[prind]
	end


	def findTexture(m)
		if m and m.texture 
			img=findImage(m.texture)
		end
		if not(img) 
			return nil
		end
		# compare image properties
		0.upto(@textures.length-1) do |e|
			if @textures.at(e).img==img
				return e
			end
		end
		
		t=STex.new(img)
		
		n=m.name.upcase.index("/BIAS")
		t.mipbias=m.name[n+5..n+7].to_i if n
		
		@textures.push t
		return @textures.length-1
		
	end

	# used for points, normals, UV points and other objects that support ==
	def findItem(v,array)
		if not v 
			return nil
		end
		return array.addSearch(v)
	end


	# find vstate from material
	def findVState(m,id,cnf)
		vs=SVState.new(id)
		vs.lightCfg=cnf
		stex=""
		if m
			if m.name.upcase.index("HISHINE")
				vs.lightMat=-6
				@specular=true
			elsif m.name.upcase.index("LOSHINE")
				vs.lightMat=-7
				@specular=true
			elsif m.name.upcase.index("AMBIENT")
				vs.lightMat=-9
			elsif m.name.upcase.index("DARKSHADE")
				vs.lightMat=-12
			elsif m.name.upcase.index("HALFBRIGHT")
				vs.lightMat=-11
			end
			
			if m.texture then 
				stex=m.texture.filename
			end
		end
				#'''''' color of material
		if m then
			if stex.length==0 
				col = m.color
			end
		else
			col = Sketchup.active_model.rendering_options["FaceFrontColor"]
		end
		
		# new colour and light material
		if col then
			if @colours.length==0
				# add black & white
				findItem(Sketchup;;Color.new(0,0,0),@colours)
				findItem(Sketchup;;Color.new(255,255,255),@colours)
			end
			c1=findItem(col,@colours)
			lm=c1.to_s + " " + c1.to_s + " 1 0 0"
			vs.lightMat = findItem(lm,@light_materials)
		end

		return findItem(vs,@vtx_states)
	end

	# find shader from material
	def findShader(m)
		if m and m.texture
			stex =  m.texture.filename.upcase
			s="Tex"
			s << "Diff" if not m.name.upcase.index("BRIGHT")
			if stex.index(".TGA") then 
				s="BlendA" + s
			end
			if m.name.upcase.index("GLOSS") then 
				s="GlossMap"
				img=@images.addSearch("env_map.ace")
				# compare image properties
				0.upto(@textures.length-1) do |e|
					if @textures.at(e).img==img
						return @shader_names.addSearch(s)
					end
				end		
				t=STex.new(img)
				t.mipbias=0
				@textures.push t
			end
		else
			s="Diffuse"
		end
		
		return @shader_names.addSearch(s)
	end

	# given a shader index, find the light config
	def findLightCnf(s)
		cn=1
		cn=2 if @shader_names.at(s)=="GlossMap"
		cn=3 if @shader_names.at(s).index("Bumpmap")
		cn=4 if @shader_names.at(s)=="Diffuse"
		return @light_model_cfgs.addSearch(cn)
	end

	# find image ID
	def findImage(t)
		i=t.filename.rindex("\\")
		i=-1 if not i
		s=t.filename[i+1..t.filename.rindex(".")].upcase << "ACE"
		return @images.addSearch(s)
	end
	


	#'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

	# perform the actual file save
	def saveS()
		# unicode file
		@fh.write "\377\376"
		$\="\015\012"
		@fh.uprintln "SIMISA@@@@@@@@@@JINX0s1t______"
		@fh.uprintln ""
		@fh.uprintln "shape ("
		
		
		shape_header
		volumes
		shader_names
		texture_filter_names
		points
		uv_points
		normals
		sort_vectors
		colours
		matrices
		images
		textures
		light_materials
		light_model_cfgs
		vtx_states
		prim_states
		lod_controls
		
		animations if @anim_nodes.length>0
		
		@fh.uprint ")"
		@fh.close
	end

	def	shape_header
		@fh.uprintln "\tshape_header sketchup20 ( 00000000 00000000 )"
	end
	
	def vector(v)
		@fh.uprint "vector ( "
		@fh.uprint v.x.to_m.fix.to_s + " "
		@fh.uprint v.z.to_m.fix.to_s + " "
		@fh.uprint v.y.to_m.fix
		@fh.uprintln " )"
	end

	def normal(v)
		@fh.uprint "vector ( "
		@fh.uprint v.x.fix.to_s + " "
		@fh.uprint v.z.fix.to_s + " "
		@fh.uprint v.y.fix
		@fh.uprintln " )"
	end

	def vol_sphere(v,r)
		$\=nil
		@fh.uprint "\t\tvol_sphere ( \015\012\t\t\t"
		vector v
		$\="\015\012"
		@fh.uprintln " " + r.to_m.fix.to_s
		@fh.uprintln "\t\t)"
	end

	def volumes
		@fh.uprint "\tvolumes ( "
		@fh.uprintln @volumes
		vol_sphere @bb.center, @bb.diagonal/2.0
		@fh.uprintln "\t)"
	end
	
	def named_shader(s)
		@fh.uprintln "\t\tnamed_shader ( " + s + " )"
	end
	
	def shader_names
		@fh.uprint "\tshader_names ( "
		@fh.uprintln @shader_names.length
		@shader_names.each { |s| named_shader s }
		@fh.uprintln "\t)"				
	end
	
	def	texture_filter_names
		@fh.uprint "\ttexture_filter_names ( "
		@fh.uprintln 1
		@fh.uprintln "\t\tnamed_filter_mode ( MipLinear )"
		@fh.uprintln "\t)"		
	end
	
	def point(v)
		@fh.uprint "\t\tpoint ( " + v.x.to_m.fix.to_s + " " + v.z.to_m.fix.to_s + " " + v.y.to_m.fix.to_s
		@fh.uprintln " )"
	end

	def	points
		@fh.uprint "\tpoints ( "
		@fh.uprintln @points.length
		@points.each { |e| point e }
		@fh.uprintln "\t)"		
	end
	
	def uv_point(v)
		@fh.uprintln "\t\tuv_point ( " + v.x.fix.to_s + " " + (-v.y.fix).to_s + " )"
	end

	def	uv_points
		@fh.uprint "\tuv_points ( "
		@fh.uprintln @uv_points.length
		@uv_points.each { |e| uv_point e }
		@fh.uprintln "\t)"		
	end
	
	def	normals
		@fh.uprint "\tnormals ( "
		@fh.uprintln @normals.length
		@normals.each { |e| @fh.uprint "\t\t"; normal e }
		@fh.uprintln "\t)"		
	end
	
	def	sort_vectors	
		@fh.uprintln "\tsort_vectors ( 0 )"
	end
	
	def colour(v)
		@fh.uprintln "\t\tcolour ( " + (v.alpha/255.0).to_s + " " + (v.red/255.0).to_s + " " + (v.green/255.0).to_s  + " " + (v.blue/255.0).to_s + " )"
	end

	def	colours
		@fh.uprint "\tcolours ( "
		@fh.uprintln @colours.length
		@colours.each { |e| colour e }
		@fh.uprintln "\t)"		
	end
	
	def matrix(v)
		
		@fh.uprint "\t\tmatrix "
		@fh.uprint v.name
		@fh.uprint " ( "
		@fh.uprint v.m[0].fix.to_s + " " + v.m[1].fix.to_s + " " + v.m[2].fix.to_s + " "
		@fh.uprint v.m[4].fix.to_s + " " + v.m[5].fix.to_s + " " + v.m[6].fix.to_s + " "
		@fh.uprint v.m[8].fix.to_s + " " + v.m[9].fix.to_s + " " + v.m[10].fix.to_s + " "
		@fh.uprintln v.m[12].to_m.fix.to_s + " " + v.m[13].to_m.fix.to_s + " " + v.m[14].to_m.fix.to_s + " )"
		
		@message << v.name + " " + v.polys.to_s + " Polygons " + (v.polys>2700 ? "<< Primitives split\n" ; "\n")
		
	end
	
	def	matrices
		@message="Groups ;\n"
		@fh.uprint "\tmatrices ( "
		@fh.uprintln @matrices.length
		@matrices.each { |e| matrix e }
		@fh.uprintln "\t)"
	end
	
	def image(v)
		@fh.uprint "\t\timage ( "
		@fh.uprint v
		@fh.uprintln " )"
	end
	
	def	images
		@fh.uprint "\timages ( "
		@fh.uprintln @images.length
		@images.each { |e| image e }
		@fh.uprintln "\t)"		
	end
	
	def texture(v)
		@fh.uprint "\t\ttexture ( "
		@fh.uprint v.to_s
		@fh.uprintln " ff000000 )"	
	end
	
	def	textures
		@fh.uprint "\ttextures ( "
		@fh.uprintln @textures.length
		@textures.each { |e| texture e }
		@fh.uprintln "\t)"		
	end
	
	def light_material(v)
		@fh.uprint "\t\tlight_material ( 00000000 "
		@fh.uprint v
		@fh.uprintln " )"		
	end
	
	def	light_materials
		@fh.uprint "\tlight_materials ( "
		@fh.uprintln @light_materials.length
		@light_materials.each { |e| light_material e }
		@fh.uprintln "\t)"		
	end
	
	def light_model_cfg(v)
	
		case v
		when 1   #  single stage
			@fh.uprintln "\t\tlight_model_cfg ( 00000000"
			@fh.uprintln "\t\t\tuv_ops ( 1"
			@fh.uprintln "\t\t\t\tuv_op_copy ( 1 0 )"
			@fh.uprintln "\t\t\t)"
			@fh.uprintln "\t\t)"
		when 2  # GlossMap
			@fh.uprintln "\t\tlight_model_cfg ( 00000000"
			@fh.uprintln "\t\t\tuv_ops ( 2"
			@fh.uprintln "\t\t\t\tuv_op_copy ( 1 0 )"
			@fh.uprintln "\t\t\t\tuv_op_reflectmapfull ( 1 )"
			@fh.uprintln "\t\t\t)"
			@fh.uprintln "\t\t)"
		when 3  # 3 stage bump maps
			@fh.uprintln "\t\tlight_model_cfg ( 00000000"
			@fh.uprintln "\t\t\tuv_ops ( 3"
			@fh.uprintln "\t\t\t\tuv_op_copy ( 1 0 )"
			@fh.uprintln "\t\t\t\tuv_op_copy ( 1 0 )"
			@fh.uprintln "\t\t\t\tuv_op_reflectmapfull ( 1 )"
			@fh.uprintln "\t\t\t)"
			@fh.uprintln "\t\t)"
		when 4   #  no texture or uv
			@fh.uprintln "\t\tlight_model_cfg ( 00000000"
			@fh.uprintln "\t\t\tuv_ops ( 0 )"
			@fh.uprintln "\t\t)"
		end
	
	end
	
	def	light_model_cfgs
		@fh.uprint "\tlight_model_cfgs ( "

		@fh.uprintln @light_model_cfgs.length
		@light_model_cfgs.each { |e| light_model_cfg e }

		@fh.uprintln "\t)"		
	end
	
	def vtx_state(v)
		@fh.uprint "\t\tvtx_state ( 00000000 "
		@fh.uprint v.to_s
		@fh.uprintln " 00000002 )"	
	end
	
	def	vtx_states
		@fh.uprint "\tvtx_states ( "

		@fh.uprintln @vtx_states.length
		@vtx_states.each { |e| vtx_state e }

		@fh.uprintln "\t)"		
	end
	
	def prim_state(v)
		@fh.uprint "\t\tprim_state " + @matrices[@vtx_states[v.vState].matrix].name + "_Prim" + v.sequence.to_s + " ( 00000000 "
		@fh.uprint v.to_s
		@fh.uprintln " 1\n\t\t)"	
	end
	
	def	prim_states
		@fh.uprint "\tprim_states ( "
		@fh.uprintln @prim_states.length
		seq=0
		# sort the states in order, and sort the sequence
		100.downto(96) do |pri|
			@prim_states.each do |e|
				if e.priority==pri
					e.sequence=seq
					seq+=1
					prim_state e
				end
			end
		end
		@prim_states.each do |e|
			if e.priority<97
				prim_state e
				e.sequence=seq
				seq+=1
			end
		end		
		@fh.uprintln "\t)"		
	end
	
	def geometry_node(v)
		@fh.uprintln "\t\t\t\t\t\t\t\t\t\tgeometry_node ( 1 0 0 0 0"
		@fh.uprintln "\t\t\t\t\t\t\t\t\t\t\tcullable_prims ( " + v.pStates.length.to_s + " " + v.count.to_s + " " + (v.count*3).to_s + " )"
		@fh.uprintln "\t\t\t\t\t\t\t\t\t\t)"
	end
	
	def vertex(v)
		v.uprint @fh
	end
	
	def vertex_set(v,cnt)
		@fh.uprintln "\t\t\t\t\t\t\t\tvertex_set ( " + v.vtx_state.to_s + " " + cnt.to_s + " " + v.vertices.length.to_s + " )"
		
	end
	
	def primitive(v,cnt)
		v.offset=cnt
		if v.primstate then
			@fh.uprintln "\t\t\t\t\t\t\t\tprim_state_idx ( " + @prim_states[v.primstate].sequence.to_s + " )"
		else
			v.uprint @fh
		end
	end
	
	def sub_object(v)
		@fh.uprintln "\t\t\t\t\t\tsub_object ( "
		@fh.uprintln "\t\t\t\t\t\t\tsub_object_header ( " + v.flags + " " + v.sortVector.to_s + " " + v.vol.to_s + " 000001d2 " + v.destFlag
		@fh.uprintln "\t\t\t\t\t\t\t\tgeometry_info ( " + v.faceNormals.to_s + " " + v.vtx_sets.length.to_s + " 0 " + (v.faceNormals*3).to_s + " 0 0 " + (v.primitives/2).to_s + " 0 0 0"
		@fh.uprint "\t\t\t\t\t\t\t\t\tgeometry_nodes ( "
		@fh.uprintln v.geometry_nodes.length

		v.geometry_nodes.each { |e| geometry_node e }
		
		@fh.uprintln "\t\t\t\t\t\t\t\t\t)"
		#							geometry_node_map ( 1 0 )
		@fh.uprint "\t\t\t\t\t\t\t\t\tgeometry_node_map ( "
		@fh.uprint @matrices.length
		0.upto(@matrices.length-1) do |e|
			@fh.uprint " "
			ind=v.geometry_nodes.index(SGeomnode.new(e))
			@fh.uprint ind ? ind ; -1
		end
		@fh.uprintln " )"

		@fh.uprintln "\t\t\t\t\t\t\t\t)"
		
		#						subobject_shaders ( 1 0 )
		@fh.uprint "\t\t\t\t\t\t\t\tsubobject_shaders ( "
		@fh.uprint v.shaders.length
		v.shaders.each { |e| @fh.uprint " "; @fh.uprint e }
		@fh.uprintln " )"

		#						subobject_light_cfgs ( 1 0 ) 0
		@fh.uprint "\t\t\t\t\t\t\t\tsubobject_light_cfgs ( "
		@fh.uprint v.lightcfgs.length
		v.lightcfgs.each { |e| @fh.uprint " "; @fh.uprint e }
		@fh.uprintln " ) " + v.id.to_s

		@fh.uprintln "\t\t\t\t\t\t\t)"
		@fh.uprint "\t\t\t\t\t\t\tvertices ( "
		@fh.uprintln v.vertices

		v.vtx_sets.each { |x| x.vertices.each { |e| vertex e } }
		
		@fh.uprintln "\t\t\t\t\t\t\t)"

		@fh.uprint "\t\t\t\t\t\t\tvertex_sets ( "
		@lastv=0
		@fh.uprintln v.vtx_sets.length
		count=0
		v.vtx_sets.each { |e| vertex_set e,count ; count+=e.vertices.length }
		
		@fh.uprintln "\t\t\t\t\t\t\t)"


		@fh.uprint "\t\t\t\t\t\t\tprimitives ( "
		@fh.uprintln v.primitives
		
		count=0
		v.vtx_sets.each { |x| x.primitives.each { |e| primitive e,count} ; count+=x.vertices.length }

		@fh.uprintln "\t\t\t\t\t\t\t)"
		# end of sub_object
		@fh.uprintln "\t\t\t\t\t\t)"

	end
	
	def distance_level(v)
	
		@fh.uprintln "\t\t\t\tdistance_level ( "
		@fh.uprintln "\t\t\t\t\tdistance_level_header ("
		@fh.uprint "\t\t\t\t\t\tdlevel_selection ( "
		@fh.uprint v.distance
		@fh.uprintln " )"
		
		@fh.uprint "\t\t\t\t\t\thierarchy ( "
		@fh.uprint v.hierarchy.length
		v.hierarchy.each { |e| @fh.uprint " "; @fh.uprint e }
		@fh.uprintln " )"
		
		@fh.uprintln "\t\t\t\t\t)"		

		@fh.uprint "\t\t\t\t\tsub_objects ( "
		@fh.uprintln v.sub_objects.length
		v.sub_objects.each { |e| sub_object e }
		@fh.uprintln "\t\t\t\t\t)"		

		@fh.uprintln "\t\t\t\t)"		
	
	end
	
	def lod_control
		@fh.uprintln "\t\tlod_control ("
		@fh.uprintln "\t\t\tdistance_levels_header ( 0 )"
		@fh.uprint "\t\t\tdistance_levels ( "
		@fh.uprintln @distance_levels.length
		
		@distance_levels.each { |e| distance_level e }

		@fh.uprintln "\t\t\t)"
		@fh.uprintln "\t\t)"
	end
	
	def	lod_controls
		@fh.uprintln "\tlod_controls ( 1"
		lod_control
		@fh.uprintln "\t)"		
	end
	
	def anim_node(v)
		@fh.uprint "\t\t\t\tanim_node "
		@fh.uprint v.name
		@fh.uprintln " ("
		
		# still to do
		
		@fh.uprintln "\t\t\t\t)"
	end
	
	def	animations
		@fh.uprintln "\tanimations ( 1"
		@fh.uprintln "\t\tanimation ( " + @keys.to_s + " " + @fps.to_s
		@fh.uprint "\t\t\tanim_nodes ( "
		
		@fh.uprint @anim_nodes.length
		@anim_nodes.each { |e| anim_node e }
		
		@fh.uprintln "\t\t\t)"
		@fh.uprintln "\t\t)"
		@fh.uprintln "\t)"		
	end


	# on creation of the TMXfile object
	def initialize(model,file)
		# set a few properties
		@model=model
		@name=model.title
		@fileName=file
		@shader_names=[]
		@points=[]
		@normals=[]
		@uv_points=[]
		@matrices=[]
		@colours=[]
		@images=[]
		@textures=[]
		@light_materials=[]
		@light_model_cfgs=[]
		@vtx_states=[]
		@prim_states=[]
		@distance_levels=[]
		@anim_nodes=[]
		@keys=8
		@fps=30
		@specular=false
		@fh = File.new(file,"wb")
		
		if @fh then
			@tw = Sketchup.create_texture_writer
			# get model bound box
			@bb=model.bounds
			@volumes=1
			# add a single distance level
			@distance_levels.push SDLevel.new()
			# add first sub-object
			@distance_levels[0].sub_objects.push SSObject.new()
			l=@model.lods[0]
			@distance_levels[0].distance=l
			print "\nLOD #{l} 0"
			# scan the model geometry
			@lastMatrixid=nil
			scanModel1(model,-1,0,nil,l)
			
			# more layers?
			1.upto(@model.lods.length-1) do |lay|
				@lastMatrixid=0
				l=@model.lods[lay]
				# add a single distance level
				@distance_levels.push SDLevel.new()
				dl=@distance_levels.length-1
				# add first sub-object
				@distance_levels[dl].sub_objects.push SSObject.new()
				# adjust previous DL
				@distance_levels[dl].distance=l
				print "\nLOD #{l} #{dl}"
				scanModel1(model,-1,dl,nil,l.to_i)
			end
			
			
			# sum up vertices and primitives
			@distance_levels.each do |dl|
				dl.sub_objects.each do |so|
					so.vtx_sets.each do |v|
						so.vertices+=v.vertices.length
						so.primitives+=v.primitives.length
					end
					if @specular
						if so.flags=="00000400"
							so.flags="00000000"
						else
							so.flags="00000100"
						end
					end
				end
			end
		end
		# model processing finished - time to save the S file
	end
	
	def saveSD()
		@fh = File.new(@fileName + "D","wb")
		# unicode file
		@fh.write "\377\376"
		$\="\015\012"
		@fh.uprintln "SIMISA@@@@@@@@@@JINX0s1t______"
		@fh.uprintln ""
		@fh.uprint "shape ( "
		s=@fileName
		i=s.rindex("\\")
		s=s[(i+1)..s.length] if i
		@fh.uprintln s
		@fh.uprintln "    ESD_Detail_Level (0)"
		@fh.uprintln "    ESD_Software_DLev (0)"
		@fh.uprintln "    ESD_Alternative_Texture (0)"
		@fh.uprintln "    ESD_Bounding_Box ( " + @bb.min.x.fix.to_m.to_s + " " + @bb.min.z.fix.to_m.to_s + " " + @bb.min.y.fix.to_m.to_s + " " + @bb.max.x.fix.to_m.to_s + " " + @bb.max.z.fix.to_m.to_s + " " + @bb.max.y.fix.to_m.to_s + " )"
		@fh.uprintln ")"
		@fh.close()
	end
end



####################################################################
# add unicode write to File class
class File
	def uprint(s)
		# print unicode version of ascii
		s.to_s.each_byte { |c| write [c,0].pack("cc") } if s
	end
	def uprintln(s)
		uprint s
		uprint $\ if $\
	end
end

####################################################################
# used by textures array
class STex
	attr_accessor ;img,;filter,;mipbias
	def initialize(id)
		@mipbias = -3
		@filter=0
		@img=id
	end
	def to_s
		@img.to_s + " " + @filter.to_s + " " + @mipbias.to_s
	end
end

####################################################################
# used by vtx_states
class SVState
	attr_accessor ;matrix,;lightMat,;lightCfg
	def initialize(id)
		@lightCfg=0
		@lightMat=-5
		@matrix=id
	end
	def ==(vs)
		return (@lightMat==vs.lightMat and @lightCfg == vs.lightCfg and @matrix==vs.matrix)
	end
	def to_s
		@matrix.to_s + " " + @lightMat.to_s + " " + @lightCfg.to_s
	end
end

####################################################################
# prim state
class SPState
	attr_accessor ;shader, ;tex_idxs,;zBias,;vState,;alphatestmode,;lightCfg,;priority,;sequence
	def initialize
		@tex_idxs=[]
		@zBias=0
		@priority=100
		@alphatestmode=0
	end
	
	def ==(o)
		if @tex_idxs.length>0
			return false if @tex_idxs.length!=o.tex_idxs.length
			return false if @tex_idxs[0]!=o.tex_idxs[0]
		end
		return (@shader==o.shader and @vState==o.vState and @alphatestmode==o.alphatestmode and @lightCfg==o.lightCfg)
	end
	
	def to_s
		s=@shader.to_s + "\n\t\t\ttex_idxs ( " + @tex_idxs.length.to_s
		tex_idxs.each { |e| s << " " << e.to_s  }
		s << " ) " + @zBias.to_s + " " + @vState.to_s + " " + @alphatestmode.to_s + " " + @lightCfg.to_s
	end
end
####################################################################
class SDLevel
	attr_accessor ;distance, ;hierarchy,;sub_objects
	def initialize
		@hierarchy=[]
		@distance=2000
		@sub_objects=[]
	end
end

####################################################################
class SSObject
	attr_accessor ;vertices,;primitives,;vtx_sets,;sortVector,;vol,;destFlag,;flags,;faceNormals,;txLightCmds,;trilistIdxs,;trilists,;geometry_nodes,;lightcfgs,;shaders,;id
	def initialize
		@vertices=0
		@primitives=0
		@vtx_sets=[]
		@sortVector=-1
		@vol=-1
		@destFlag="000001c4"
		@flags="00000400"
		@geometry_nodes=[]
		@lightcfgs=[]
		@shaders=[]
		@id=0
		@faceNormals=0
		@txLightCmds=0
		@trilistIdxs=0
		@trilists=0
	end
end
####################################################################
class SVertex
	attr_accessor ;pointIdx, ;normalIdx ,;colour1,;colour2, ;vertex_uvs
	def initialize
		@vertex_uvs=[]
		@colour1="ffffffff"
		@colour2="ff000000"
	end
	def ==(o)
		if @vertex_uvs.length>0
			return false if @vertex_uvs.length!=o.vertex_uvs.length
			return false if @vertex_uvs[0]!=o.vertex_uvs[0]
		end
		return (@pointIdx==o.pointIdx and @normalIdx==o.normalIdx)
	end
	def uprint(fh)
		fh.uprint "\t\t\t\t\t\t\t\tvertex ( 00000000 " + @pointIdx.to_s + " " + @normalIdx.to_s + " " + @colour1 + " " + @colour2 + "\n\t\t\t\t\t\t\t\t\t vertex_uvs ( " + @vertex_uvs.length.to_s
		@vertex_uvs.each { |e| fh.uprint " " + e.to_s }
		fh.uprintln " )\n\t\t\t\t\t\t\t\t)"
	end
end

class SVtxset

	attr_accessor ;vtx_state,  ;vertices, ;primitives
	
	def initialize(vs)
		@vtx_state=vs
		@vertices=[]
		@primitives=[]
	end
	def ==(o)
		return @vtx_state==o.vtx_state
	end
end


####################################################################
class SGeomnode
	attr_accessor ;pStates, ;count,;matrix
	def initialize(id)
		@pStates=[]
		@count=0
		@matrix=id
	end
	def ==(o)
		return (@matrix == o.matrix)
	end
end

####################################################################
class SPrimitive
	attr_accessor ;vert_idxs, ;normal_idxs, ;primstate, ;offset
	def initialize
		@vert_idxs=[]
		@normal_idxs=[]
	end
	def ==(o)
		return @primstate==o.primstate
	end
	def uprint(fh)
		fh.uprintln "\t\t\t\t\t\t\t\tindexed_trilist ("
		fh.uprint "\t\t\t\t\t\t\t\t\tvertex_idxs ( " + @vert_idxs.length.to_s
		width=0
		@vert_idxs.each do |e|
			fh.uprint " " + (e+@offset).to_s
			if width>1000 then
				fh.uprint "\015\012\t\t\t\t\t\t\t\t\t"
				width=0
			else
				width+=e.to_s.length
			end
		end
		fh.uprintln " )"
		fh.uprint "\t\t\t\t\t\t\t\t\tnormal_idxs ( " + @normal_idxs.length.to_s
		
		width=0
		@normal_idxs.each do |e|
			fh.uprint " " + e.to_s + " 3"
			if width>1000 then
				fh.uprint "\015\012\t\t\t\t\t\t\t\t\t"
				width=0
			else
				width+=e.to_s.length
			end
		end
		fh.uprintln " )"
		
		fh.uprint "\t\t\t\t\t\t\t\t\tflags ( " + @normal_idxs.length.to_s
		width=0
		@normal_idxs.each do |e|
			fh.uprint " 00000000"
			if width>1000 then
				fh.uprint "\015\012\t\t\t\t\t\t\t\t\t"
				width=0
			else
				width+=9
			end
		end
		
		fh.uprintln " )"
		fh.uprintln "\t\t\t\t\t\t\t\t)"
	end
end
####################################################################
# extend 3dmath class matrix
class Matrix
	# add name attribute
	attr_accessor ;name,;polys
	# copy array to matrix (from SU transromation.to_a
	def setFromSU(mIn)
		@m=mIn
		# swap 2nd/3rd rows and cols
		@m[2],@m[1]=@m[1],@m[2]
		@m[10],@m[5]=@m[5],@m[10]
		@m[14],@m[13]=@m[13],@m[14]
		@m[4],@m[8]=@m[8],@m[4]
		@m[6],@m[9]=@m[9],@m[6]
		@m[7],@m[11]=@m[11],@m[7]
	end
end
####################################################################
class Numeric
	# use 6 decimal places only
	def fix
		(self*1000000.0).to_i.to_f/1000000.0
	end
end

####################################################################
# return index, but add if not found in array
class Array
	def addSearch(s)
		e=index(s)
		if e then
			return e
		else
			push s
			return length-1
		end
	end
end