Can't get External Mesh Loader to work in irrBMAX

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gman

teaches me to go from memory :) my apologies. i misguided you on a few steps. my changes are denoted with "GG":

Strict

Import gg.irrBMAX

Type T_chunk_header
 Field id:Byte[4]
 Field length:Long
End Type

' GG - based on BMXIMeshLoader instead
Type B3DLoader Extends BMXIMeshLoader
 Field ChunkHeader:T_chunk_header

 Method IsALoadableFileExtension:Int(Filename:String)
DebugLog("IsALoadableFileExtension")
  Return (Lower(Right(Filename,4)) = ".b3d")
 End Method

 
 Method createMesh:T_irrIAnimatedMesh(file:T_irrIReadFile)
DebugLog("createMesh")
  ChunkHeader = New T_chunk_header
  file.seek(0) 'seek to start of file
  ReadChunkHeader(file)

  If TestByteStringArray(ChunkHeader.id,"BB3D")
   Print "BB3D header found"
  Else
   Print "BB3D header not found"
  End If

 End Method

 Method TestByteStringArray:Int(test1:Byte Ptr,test2:String)
  Local t:Int
   
  For t = 1 To Len(test2)
   If Chr(test1[t-1]) <> Mid(test2,t,1) Then Return False
  Next
  Return True
 End Method

 Method ReadChunkHeader(file:T_irrIReadFile)
  file.read(String Ptr(Varptr ChunkHeader),8)
 End Method
 ' GG - changed to return BMXIMeshLoader
 Function generate:BMXIMeshLoader()
  Return BMXIMeshLoader(New B3DLoader)
 End Function
  
End Type


Local device:T_irrIrrlichtDevice=T_irrIrrlichtDevice.create(EDT_OPENGL,T_irrDimension2d_s32.create(640,480),32,False,False,False,0)

device.setWindowCaption("Hello World! - Irrlicht Engine Demo")

Local driver:T_irrIVideoDriver=device.getVideoDriver()
Local smgr:T_irrISceneManager=device.getSceneManager()
Local guienv:T_irrIGUIEnvironment=device.getGUIEnvironment()

' GG - create the loader, convert it to a T_irrIMeshLoader and pass to addexternalmeshloader
Local loader:B3DLoader = B3DLoader(B3DLoader.create(B3DLoader.generate))
smgr.AddExternalMeshLoader(T_irrIMeshLoader.createFromHandle(loader.handle))

guienv.addStaticText("Hello World! This is the Irrlicht Software renderer!",T_irrRect_s32.createFromVals(10,10,200,22),True)

Local mesh:T_irrIAnimatedMesh=smgr.getMesh("bridge.b3d")
Local node:T_irrIAnimatedMeshSceneNode=smgr.addAnimatedMeshSceneNode(mesh)
Local anim:T_irrISceneNodeAnimator
If node.handle<>0
    node.setScale(T_irrVector3df.createFromVals(100,100,100))
	node.setMaterialFlag(EMF_LIGHTING,False)
	node.setFrameLoop(0,310)
	node.setMaterialTexture(0,driver.getTexture("pebble2.jpg"))
	anim = smgr.createRotationAnimator(T_irrVector3df.createFromVals(.1,1,.5))
	node.addAnimator(anim)

EndIf

smgr.addCameraSceneNode(0,T_irrVector3df.createFromVals(0,30,-40),T_irrVector3df.createFromVals(0,5,0))

While (device.run())

	driver.beginScene(True,True,T_irrSColor.createFromVals(0,200,200,200))
	smgr.drawAll()
	guienv.drawAll()
	driver.endScene()

Wend

device.drop()