; EntityOrder Example
; -------------------

Graphics3D 640,480,0,2
SetBuffer BackBuffer()

camera=CreateCamera()
AmbientLight 200,200,200

; A red cube near the camera and a blue cube behind it
near_cube=CreateCube()
PositionEntity near_cube,0,0,4
EntityColor near_cube,255,0,0

far_cube=CreateCube()
PositionEntity far_cube,0.75,0.75,6
EntityColor far_cube,0,100,255

order=0

While Not KeyDown(1)

    ; Space cycles the blue cube's draw order: -1, 0, +1
    If KeyHit(57)
        order=order+1
        If order>1 Then order=-1
    EndIf

    ; Apply the order: <0 = drawn last (in front), 0 = normal z-buffered
    ; drawing, >0 = drawn first (behind everything)
    EntityOrder far_cube,order

    TurnEntity near_cube,0,1,0
    TurnEntity far_cube,0,-1,0

    ; Arrow keys move the camera
    If KeyDown(200) Then MoveEntity camera,0,0,0.1
    If KeyDown(208) Then MoveEntity camera,0,0,-0.1
    If KeyDown(203) Then TurnEntity camera,0,1,0
    If KeyDown(205) Then TurnEntity camera,0,-1,0

    RenderWorld

    Text 0,0,"Space: cycle draw order   Arrow keys: move camera   Esc: exit"
    Text 0,20,"EntityOrder far_cube,"+order
    If order<0
        Text 0,40,"-1: drawn last - the far blue cube appears IN FRONT"
    ElseIf order=0
        Text 0,40,"0: normal z-buffered drawing"
    Else
        Text 0,40,"+1: drawn first - the blue cube appears BEHIND everything"
    EndIf

    Flip

Wend

End