; ClearDebugDraw Example
; ----------------------
; Requires Extended mode.

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

camera=CreateCamera()
PositionEntity camera,0,3,-9

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

; A drone circling the arena with a full debug overlay
drone=CreateCube()
ScaleEntity drone,0.5,0.5,0.5
EntityColor drone,80,200,255

While Not KeyDown(1)

    ; The drone circles while the overlay tracks it
    angle#=angle+1.5
    PositionEntity drone,4*Cos(angle),1.5+Sin(angle*3),4*Sin(angle)

    ; Queue several debug shapes for the next RenderWorld
    DebugGrid 12,1,0,90,90,90
    DebugSphere EntityX(drone),EntityY(drone),EntityZ(drone),1,16,255,220,0
    DebugLine 0,0,0,EntityX(drone),EntityY(drone),EntityZ(drone),255,80,80

    ; Holding Space discards everything queued above before it is drawn
    If KeyDown(57) Then ClearDebugDraw

    ; 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,"Arrow keys: move camera   Hold Space: ClearDebugDraw   Esc: exit"
    If KeyDown(57) Then Text 0,20,"ClearDebugDraw dropped this frame's queued shapes" Else Text 0,20,"Grid, sphere and line are queued fresh every frame"

    Flip

Wend

End