Hi,
please try the following code (move the ball with the cursor keys) try to get the ball to collide with the cube.
Collisions fail!
Then comment out the "animate cube, 1" line. Collisions work. WHY IS THIS?
; Collisions Example
; ------------------
Graphics3D 640,480
SetBuffer BackBuffer()
; Set collision type values
type_ground=1
type_character=2
type_scenery=3
camera=CreateCamera()
RotateEntity camera,45,0,0
PositionEntity camera,0,15,-10
light=CreateLight()
RotateEntity light,45,0,0
; Create cube 'ground'
cube=CreateCube()
ScaleEntity cube,10,10,10
EntityColor cube,0,127,0
EntityType cube,type_ground
PositionEntity cube,0,-5,0
; Create sphere 'character'
sphere=CreateSphere( 32 )
EntityColor sphere,127,0,0
EntityRadius sphere,1
EntityType sphere,type_character
PositionEntity sphere,0,7,0
; Enable collisions between type_character and type_ground
Collisions type_character,type_ground,2,2
; Create cube 'scenery'
cube=CreateCube()
ScaleEntity cube,2,2,2
EntityColor cube,0,0,127
EntityRadius cube,2
EntityBox cube,-2,-2,-2,4,4,4
EntityType cube,type_scenery
RotateEntity cube,0,45,0
PositionEntity cube,4,7,4
EntityColor cube, 255,0, 0
SetAnimKey cube,0,0,1,1
TurnEntity cube,0,90,True
SetAnimKey cube,90,0,1,1
TurnEntity cube,0,90,0,True
SetAnimKey cube,180,0,1,1
TurnEntity cube,0,90,0,True
SetAnimKey cube,270,0,1,1
TurnEntity cube,0,90,0,True
SetAnimKey cube,360,0,1,1
AddAnimSeq cube, 360
Animate cube,1
; Set collision method and response values
method=2
response=2
method_info$="ellipsoid-to-polygon"
response_info$="slide1"
While Not KeyDown( 1 )
x#=0
y#=0
z#=0
If KeyDown( 203 )=True Then x#=-0.1
If KeyDown( 205 )=True Then x#=0.1
If KeyDown( 208 )=True Then z#=-0.1
If KeyDown( 200 )=True Then z#=0.1
MoveEntity sphere,x#,y#,z#
MoveEntity sphere,0,-0.02,0 ; gravity
; Change collision method
If KeyHit( 50 )=True
method=method+1
If method=4 Then method=1
If method=1 Then method_info$="ellipsoid-to-sphere"
If method=2 Then method_info$="ellipsoid-to-polygon"
If method=3 Then method_info$="ellipsoid-to-box"
EndIf
; Change collision response
If KeyHit( 19 )=True
response=response+1
If response=4 Then response=1
If response=1 Then response_info$="stop"
If response=2 Then response_info$="slide1"
If response=3 Then response_info$="slide2"
EndIf
;TurnEntity cube, 0,1,0
; Enable collisions between type_character and type_scenery
Collisions type_character,type_scenery,method,response
; Perform collision checking
UpdateWorld
RenderWorld
Text 0,0,"Use cursor keys to move sphere"
Text 0,20,"Press M to change collision Method (currently: "+method_info$+")"
Text 0,40,"Press R to change collision Response (currently: "+response_info$+")"
Text 0,60,"Collisions type_character,type_scenery,"+method+","+response
Flip
Wend
End
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