; EntityAlpha Example
; -------------------

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

camera=CreateCamera()

light=CreateLight()
RotateEntity light,45,45,0

; A red wall behind the ghost cube, so the transparency is visible
wall=CreateCube()
ScaleEntity wall,6,2,0.2
PositionEntity wall,0,0,8
EntityColor wall,255,0,0

; The ghost cube whose alpha we will change
ghost=CreateCube()
PositionEntity ghost,0,0,5

alpha#=1.0

While Not KeyDown(1)

    ; Press + / - to change the alpha level
    If KeyDown(13) And alpha<1 Then alpha=alpha+0.01
    If KeyDown(12) And alpha>0 Then alpha=alpha-0.01

    ; Apply the transparency to the ghost cube
    EntityAlpha ghost,alpha

    TurnEntity ghost,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,"+ / - : change alpha   Arrows: camera   Esc: exit"
    Text 0,20,"EntityAlpha ghost,"+alpha

    Flip

Wend

End