; CameraPick Example
; ------------------

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

camera=CreateCamera()
PositionEntity camera,0,2,-10

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

; Make the ground plane pickable, using pick mode 2 (polygon-accurate)
plane=CreatePlane()
EntityPickMode plane,2
ground_tex=LoadTexture("media/MossyGround.BMP")
ScaleTexture ground_tex,4,4
EntityTexture plane,ground_tex

; A crate to click on - also pickable
crate=CreateCube()
EntityPickMode crate,2
crate_tex=LoadTexture("media/b3dlogo.jpg")
EntityTexture crate,crate_tex
PositionEntity crate,0,1,0

While Not KeyDown(1)

    ; 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

    ; Left mouse button fires a pick ray through the mouse position -
    ; it can hit the crate, the ground, or nothing at all
    If MouseHit(1) Then picked=CameraPick(camera,MouseX(),MouseY())

    RenderWorld

    Text 0,0,"Click: CameraPick at the mouse   Arrow keys: move camera   Esc: exit"
    Text 0,20,"PickedEntity: "+picked
    Text 0,40,"PickedX: "+PickedX#()
    Text 0,60,"PickedY: "+PickedY#()
    Text 0,80,"PickedZ: "+PickedZ#()
    Text 0,100,"PickedNX: "+PickedNX#()
    Text 0,120,"PickedNY: "+PickedNY#()
    Text 0,140,"PickedNZ: "+PickedNZ#()

    Flip

Wend

End