; ID: 454
; Author: TeraBit
; Date: 2002-10-09 10:11:10
; Title: Weld()
; Description: Weld a mesh's Vertices

Dim txv(3)
Type TRIS
	Field x0#
	Field y0#
	Field z0#

	Field u0#
	Field v0#
	Field U20#
	Field V20#
	
	Field x1#
	Field y1#
	Field z1#

	Field u1#
	Field v1#
	Field U21#
	Field V21#
	
	Field x2#
	Field y2#
	Field z2#

	Field u2#
	Field v2#

	Field U22#
	Field V22#
	
	Field surface
End Type


Function Weld(mish)

RenderWorld : Text GraphicsWidth()/2,GraphicsHeight()/2,"Optimising Please Wait..",True,True : Flip  

For nsurf = 1 To CountSurfaces(mish)
su=GetSurface(mish,nsurf)
For tq = 0 To CountTriangles(su)-1
txv(0) = TriangleVertex(su,tq,0)
txv(1) = TriangleVertex(su,tq,1)
txv(2) = TriangleVertex(su,tq,2)
	vq.TRIS = New TRIS
	vq\x0# = VertexX(su,txv(0))
	vq\y0# = VertexY(su,txv(0))
	vq\z0# = VertexZ(su,txv(0))
	vq\u0# = VertexU(su,txv(0),0)
	vq\v0# = VertexV(su,txv(0),0)
	vq\u20# = VertexU(su,txv(0),1)
	vq\v20# = VertexV(su,txv(0),1)
	
	vq\x1# = VertexX(su,txv(1))
	vq\y1# = VertexY(su,txv(1))
	vq\z1# = VertexZ(su,txv(1))
	vq\u1# = VertexU(su,txv(1),0)
	vq\v1# = VertexV(su,txv(1),0)
	vq\u21# = VertexU(su,txv(1),1)
	vq\v21# = VertexV(su,txv(1),1)

	vq\x2# = VertexX(su,txv(2))
	vq\y2# = VertexY(su,txv(2))
	vq\z2# = VertexZ(su,txv(2))
	vq\u2# = VertexU(su,txv(2),0)
	vq\v2# = VertexV(su,txv(2),0)
	vq\u22# = VertexU(su,txv(2),1)
	vq\v22# = VertexV(su,txv(2),1)
Next

ClearSurface su

For vq.tris = Each tris

		vt1=Findvert(su,vq\x0#,vq\y0#,vq\z0#,vq\u0#,vq\v0#,vq\u20#,vq\v20#)
		
		If vt1=0 Then
			AddVertex su,vq\x0#,vq\y0#,vq\z0#,vq\u0#,vq\v0#
			VertexTexCoords su,mycount,vq\u20#,vq\v20#,0,1
			vt1 = mycount
			mycount = mycount +1
		EndIf

		vt2=findvert(su,vq\x1#,vq\y1#,vq\z1#,vq\u1#,vq\v1#,vq\u21#,vq\v21#)
		If Vt2=0 Then
			AddVertex su,vq\x1#,vq\y1#,vq\z1#,vq\u1#,vq\v1#
			VertexTexCoords su,mycount,vq\u21#,vq\v21#,0,1
			vt2 = mycount
			mycount = mycount +1
		EndIf
		
		vt3=findvert(su,vq\x2#,vq\y2#,vq\z2#,vq\u2#,vq\v2#,vq\u22#,vq\v22#)
		
		If vt3=0 Then 
			AddVertex su,vq\x2#,vq\y2#,vq\z2#,vq\u2#,vq\v2#
			VertexTexCoords su,mycount,vq\u22#,vq\v22#,0,1
			vt3 = mycount
			mycount = mycount +1
		EndIf

	AddTriangle su,vt1,vt2,vt3

Next

Delete Each tris
mycount=0
Next
End Function

Function findvert(su,x2#,y2#,z2#,u2#,v2#,u22#,v22#)
For t=0 To CountVertices(su)-1
	If VertexX(su,t)=x2# Then 
		If VertexY(su,t)=y2# Then 
			If VertexZ(su,t)=z2# Then 
				If VertexU(su,t,0)=u2# Then 
					If VertexV(su,t,0)=v2# Then 
						If VertexU(su,t,1)=u22# Then 
							If VertexV(su,t,1)=v22# Then
								Return t
							EndIf
						EndIf
					EndIf
				EndIf
			EndIf
		EndIf
	EndIf
Next
Return 0
End Function