[DruggedBunnyParticipant]

Hmm, guess I could do that. Wondering if it’s intended, though, as it seems weird not to be able to place into same hierarchy level as default entities.

[DruggedBunnyParticipant]

I guess I want to make it a member of Scene.RootEntities? Is it safe to just do Scene.RootEntities.Add (entity)? Feels like setting parent to Null should do that, though, like parent’s Null status, above.

EDIT: Nah, that’s not allowed, being private!

[DruggedBunnyParticipant]

@cocon That is the new home of skidracer’s Blitz/Monkey1 web archive, it just moved from wasted.nz.

Thanks, Jesse!

[DruggedBunnyParticipant]

Thanks, hopefully it might help others start playing with this stuff!

[DruggedBunnyParticipant]

Also, note that red boxes dropped via “D” in wall sample may stop responding when Space is pressed — this is intentional, and is the default behaviour of RigidBody — bodies well away from others will auto-sleep until hit again to reduce processing.

Pass False to Start () call in DropBoxes to disable sleeping!

[DruggedBunnyParticipant]

Make boxes bouncy by adding this in PhysBox.Start:

Monkey

' Try 0.25 to 0.95. Lower may have no effect, while anything > 0.5 just keeps bouncing around. Over 1.0 is... interesting (try 1.1 and wait a few seconds!) ' Effects are likely dependent on mass, too, so play with that in New PhysBox, defaults to 1.0 above... body.Restitution = 0.5

1 2 3 4 5 6

' Try 0.25 to 0.95. Lower may have no effect, while anything > 0.5 just keeps bouncing around. Over 1.0 is... interesting (try 1.1 and wait a few seconds!)   ' Effects are likely dependent on mass, too, so play with that in New PhysBox, defaults to 1.0 above...   body.Restitution = 0.5

[DruggedBunnyParticipant]

Try turning off shadows in second demo if lots of boxes cause slowdown on your system!

[DruggedBunnyParticipant]

Example 2: Wall of boxes

Monkey

' Wall of boxes... #Import "<std>" #Import "<mojo>" #Import "<mojo3d>" #Import "<bullet>" Using std.. Using mojo.. Using mojo3d.. Const WALL_WIDTH:Int = 10 Const WALL_HEIGHT:Int = 5 Class PhysBox Private ' PhysParams is used internally to allow creation of box prior to manual placement. ' Entities should not be manually positioned after being attached to a RigidBody. ' Create PhysBox, manually position PhysBox.model, then call PhysBox.Start (). Class InitParams Field mass:Float Field group:Short Field mask:Short Field box:Boxf End ' InitParams are only needed for setup, and freed afterwards, hence not added as separate fields. Field init:InitParams Public ' Public references... Field model:Model ' mojo3d entity Field collider:BoxCollider ' Bullet physics collider Field body:RigidBody ' Bullet physics body Method New (width:Float = 1, height:Float = 1, depth:Float = 1, mass:Float = 1, material:Material = Null, group:Int = 1, mask:Int = 1) ' Store setup params for PhysBox.Start () init = New InitParams init.mass = mass init.group = group init.mask = mask init.box = New Boxf (-width * 0.5, -height * 0.5, -depth * 0.5, width * 0.5, height * 0.5, depth * 0.5) If Not material material = New PbrMaterial (Color.Red) Endif model = Model.CreateBox (init.box, 1, 1, 1, material) End Method Start (sleeps:Bool = True) collider = New BoxCollider (model) body = New RigidBody (model) collider.Box = init.box body.Mass = init.mass body.CollisionGroup = init.group body.CollisionMask = init.mask ' Disables sleeping -- NOT generally desirable outside of demos, as most bodies should settle... ' Recommended only for player-controlled bodies in general! If Not sleeps body.btBody.setActivationState (bullet.DISABLE_DEACTIVATION) Endif init = Null End Method Move (x:Float, y:Float, z:Float) model.Move (x, y, z) End Method Rotate (pitch:Float, roll:Float, yaw:Float, localspace:Bool = False) model.Rotate (pitch, roll, yaw, localspace) End End ' Main Game class... Class Game Extends Window ' Er, camera speed logic is a bit weird/unnecessary... Const CAMERA_SPEED_NORMAL:Float = 0.05 ' Normal camera movement Const CAMERA_SPEED_BOOST:Float = 4.0 ' Camera boost with Shift key Field cam_speed:Float = 1.0 ' Camera forward speed ' 3D scene references... Field scene:Scene Field cam:Camera Field light:Light ' Physics box representing ground... Field ground:PhysBox ' List of PhysBoxes... Field boxes:List <PhysBox> ' App init/scene creation... Method New (title:String, width:Int, height:Int, flags:WindowFlags) Super.New (title, width, height, flags) ' Create window SeedRnd (Millisecs ()) ' Init random seed SwapInterval = 1 ' V-sync on CreateScene (15) ' WAAAAAAAHHH! (Parameter = ground size.) End Method CreateScene:Void (ground_size:Float = 100) ' Set up 3D scene stuff... scene = Scene.GetCurrent () ground = New PhysBox (ground_size, 1, ground_size, 0, New PbrMaterial (Color.Green * 0.25)) cam = New Camera light = New Light scene.AmbientLight = Color.White * 0.75 scene.ClearColor = Color.Sky * 0.75 ' Camera setup... cam.FOV = 100 cam.Move (0, 5, -15) cam.Near = 0.01 cam.Far = 1000 ' Light setup... light.CastsShadow = True light.Range = 1000 light.Move (0, 20, 10) ' Point things at ground centre... cam.PointAt (ground.model) light.PointAt (ground.model) ' Create list of PhysBoxes... boxes = New List <PhysBox> ' Build wall of PhysBoxes... BuildWall (WALL_WIDTH, WALL_HEIGHT) ' Start ground physics... ground.Start () End Method BuildWall (width:Int, height:Int) ' Creates bunch of PhysBoxes and adds to internal list (boxes)... For Local y:Int = 0 Until height For Local x:Int = 0 Until width Local color:Color = New Color (Rnd (0.4, 1.0), Rnd (0.4, 1.0), Rnd (0.4, 1.0)) ' Create new PhysBox... Local pb:PhysBox = New PhysBox (1, 1, 1, 1, New PbrMaterial (color)) ' Position PhysBox... pb.Move (x - (width / 2.0), y + 1, 0) ' Add to list... boxes.Add (pb) ' Start its physics... pb.Start (False) ' False = RigidBody doesn't sleep at rest Next Next End Method DropBox () ' Drops red boxes into scene... Local pb:PhysBox = New PhysBox (1, 1, 1, 1, New PbrMaterial (Color.Red)) pb.Move (0, 50, 0) boxes.Add (pb) pb.Start () End Method BumpWall (force:Float = 0.25) ' Apply force to all boxes in list... Local vec:Vec3f = New Vec3f (0.0, force, 0.0) For Local pb:PhysBox = Eachin boxes pb.body.ApplyImpulse (vec) Next End ' Checks if out of range (Y lower than -20); if so, scales down, and when box is ' eventually small enough, deletes it. Increase Scale multiplier (0.75) to remove more ' slowly (0.0 to 0.999)... Method UpdateBoxes () For Local pb:PhysBox = Eachin boxes If pb.model.Y < -20 pb.model.Scale = pb.model.Scale * 0.75 ' Remove when too small... If pb.model.Scale.x < 0.01 pb.model.Destroy () boxes.Remove (pb) Endif Endif Next End Method UpdateGame () ' Check box position/remove if too far down... UpdateBoxes () ' Drop red boxes into scene... If Keyboard.KeyDown (Key.D) DropBox () Endif ' Give wall of boxes a bump! If Keyboard.KeyDown (Key.Space) BumpWall () Endif ' Quit... If Keyboard.KeyHit (Key.Escape) App.Terminate () Endif ' Shadows on/off... If Keyboard.KeyHit (Key.S) light.CastsShadow = Not light.CastsShadow Endif ' Rebuild wall... If Keyboard.KeyHit (Key.R) For Local pb:PhysBox = Eachin boxes pb.model.Destroy () boxes.Remove (pb) Next BuildWall (WALL_WIDTH, WALL_HEIGHT) Endif ' Speed booster... If Keyboard.KeyDown (Key.LeftShift) cam_speed = CAMERA_SPEED_BOOST Else cam_speed = 1.0 Endif ' Forward... If Keyboard.KeyDown (Key.A) cam.Move (0.0, 0.0, CAMERA_SPEED_NORMAL * cam_speed) Endif ' Back... If Keyboard.KeyDown (Key.Z) cam.Move (0.0, 0.0, -CAMERA_SPEED_NORMAL * cam_speed) Endif ' Rotation... If Keyboard.KeyDown (Key.Left) cam.Rotate (0.0, 1.0, 0.0) Endif If Keyboard.KeyDown (Key.Right) cam.Rotate (0.0, -1.0, 0.0) Endif If Keyboard.KeyDown (Key.Up) cam.Rotate (1.0, 0.0, 0.0, True) Endif If Keyboard.KeyDown (Key.Down) cam.Rotate (-1.0, 0.0, 0.0, True) Endif End ' Helper... Method ShadowText:Void (canvas:Canvas, s:String, x:Float, y:Float) canvas.Color = Color.Black canvas.DrawText (s, x + 1, y + 1) canvas.Color = Color.White canvas.DrawText (s, x, y) End Method RenderText (canvas:Canvas) ShadowText (canvas, "FPS: " + App.FPS, 20.0, 20.0) ShadowText (canvas, "A/Z + Cursors to move camera", 20.0, 40.0) ShadowText (canvas, "SHIFT to boost", 20.0, 60.0) ShadowText (canvas, "R to rebuild wall", 20.0, 100.0) ShadowText (canvas, "S to toggle shadows", 20.0, 120.0) ShadowText (canvas, "SPACE to boost boxes", 20.0, 140.0) ShadowText (canvas, "D to drop more boxes into scene", 20.0, 160.0) ShadowText (canvas, "Boxes: " + boxes.Count (), 20.0, 200.0) End Method OnRender (canvas:Canvas) Override UpdateGame () ' Process controls/game world RequestRender () ' Ask window to render itself scene.Update () ' Update scene AND PHYSICS; IMPORTANT! scene.Render (canvas) ' Render scene RenderText (canvas) ' Add text End End Function Run3D (title:String, width:Int, height:Int, flags:WindowFlags = WindowFlags.Center) New AppInstance New Game (title, width, height, flags) App.Run () End Function Main () Run3D ("3D Scene", 960, 540, WindowFlags.Center) ' 1/4 HD! ' Run3D ("3D Scene", 1920, 1080, WindowFlags.Fullscreen) End

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' Wall of boxes...   #Import "<std>" #Import "<mojo>" #Import "<mojo3d>" #Import "<bullet>"   Using std.. Using mojo.. Using mojo3d..   Const WALL_WIDTH:Int = 10 Const WALL_HEIGHT:Int = 5   Class PhysBox   Private ' PhysParams is used internally to allow creation of box prior to manual placement. ' Entities should not be manually positioned after being attached to a RigidBody. ' Create PhysBox, manually position PhysBox.model, then call PhysBox.Start (). Class InitParams Field mass:Float Field group:Short Field mask:Short Field box:Boxf End ' InitParams are only needed for setup, and freed afterwards, hence not added as separate fields. Field init:InitParams Public ' Public references... Field model:Model ' mojo3d entity Field collider:BoxCollider ' Bullet physics collider Field body:RigidBody ' Bullet physics body   Method New (width:Float = 1, height:Float = 1, depth:Float = 1, mass:Float = 1, material:Material = Null, group:Int = 1, mask:Int = 1)   ' Store setup params for PhysBox.Start () init = New InitParams init.mass = mass init.group = group init.mask = mask init.box = New Boxf (-width * 0.5, -height * 0.5, -depth * 0.5, width * 0.5, height * 0.5, depth * 0.5) If Not material material = New PbrMaterial (Color.Red) Endif model = Model.CreateBox (init.box, 1, 1, 1, material)   End   Method Start (sleeps:Bool = True)   collider = New BoxCollider (model) body = New RigidBody (model) collider.Box = init.box body.Mass = init.mass body.CollisionGroup = init.group body.CollisionMask = init.mask ' Disables sleeping -- NOT generally desirable outside of demos, as most bodies should settle... ' Recommended only for player-controlled bodies in general! If Not sleeps body.btBody.setActivationState (bullet.DISABLE_DEACTIVATION) Endif init = Null End Method Move (x:Float, y:Float, z:Float) model.Move (x, y, z) End   Method Rotate (pitch:Float, roll:Float, yaw:Float, localspace:Bool = False) model.Rotate (pitch, roll, yaw, localspace) End End   ' Main Game class...   Class Game Extends Window   ' Er, camera speed logic is a bit weird/unnecessary... Const CAMERA_SPEED_NORMAL:Float = 0.05 ' Normal camera movement Const CAMERA_SPEED_BOOST:Float = 4.0 ' Camera boost with Shift key Field cam_speed:Float = 1.0 ' Camera forward speed ' 3D scene references... Field scene:Scene Field cam:Camera Field light:Light ' Physics box representing ground... Field ground:PhysBox   ' List of PhysBoxes... Field boxes:List <PhysBox>   ' App init/scene creation... Method New (title:String, width:Int, height:Int, flags:WindowFlags)   Super.New (title, width, height, flags) ' Create window   SeedRnd (Millisecs ()) ' Init random seed SwapInterval = 1 ' V-sync on CreateScene (15) ' WAAAAAAAHHH! (Parameter = ground size.) End Method CreateScene:Void (ground_size:Float = 100)   ' Set up 3D scene stuff... scene = Scene.GetCurrent () ground = New PhysBox (ground_size, 1, ground_size, 0, New PbrMaterial (Color.Green * 0.25)) cam = New Camera light = New Light scene.AmbientLight = Color.White * 0.75 scene.ClearColor = Color.Sky * 0.75   ' Camera setup... cam.FOV = 100 cam.Move (0, 5, -15) cam.Near = 0.01 cam.Far = 1000 ' Light setup... light.CastsShadow = True light.Range = 1000   light.Move (0, 20, 10) ' Point things at ground centre... cam.PointAt (ground.model) light.PointAt (ground.model)   ' Create list of PhysBoxes...   boxes = New List <PhysBox>   ' Build wall of PhysBoxes... BuildWall (WALL_WIDTH, WALL_HEIGHT) ' Start ground physics... ground.Start () End   Method BuildWall (width:Int, height:Int)   ' Creates bunch of PhysBoxes and adds to internal list (boxes)... For Local y:Int = 0 Until height For Local x:Int = 0 Until width Local color:Color = New Color (Rnd (0.4, 1.0), Rnd (0.4, 1.0), Rnd (0.4, 1.0)) ' Create new PhysBox... Local pb:PhysBox = New PhysBox (1, 1, 1, 1, New PbrMaterial (color)) ' Position PhysBox... pb.Move (x - (width / 2.0), y + 1, 0) ' Add to list... boxes.Add (pb) ' Start its physics... pb.Start (False) ' False = RigidBody doesn't sleep at rest Next Next   End   Method DropBox ()   ' Drops red boxes into scene... Local pb:PhysBox = New PhysBox (1, 1, 1, 1, New PbrMaterial (Color.Red)) pb.Move (0, 50, 0)   boxes.Add (pb) pb.Start ()   End Method BumpWall (force:Float = 0.25)   ' Apply force to all boxes in list... Local vec:Vec3f = New Vec3f (0.0, force, 0.0) For Local pb:PhysBox = Eachin boxes pb.body.ApplyImpulse (vec) Next End ' Checks if out of range (Y lower than -20); if so, scales down, and when box is ' eventually small enough, deletes it. Increase Scale multiplier (0.75) to remove more ' slowly (0.0 to 0.999)... Method UpdateBoxes ()   For Local pb:PhysBox = Eachin boxes   If pb.model.Y < -20   pb.model.Scale = pb.model.Scale * 0.75   ' Remove when too small... If pb.model.Scale.x < 0.01 pb.model.Destroy () boxes.Remove (pb) Endif   Endif   Next   End   Method UpdateGame () ' Check box position/remove if too far down... UpdateBoxes () ' Drop red boxes into scene... If Keyboard.KeyDown (Key.D) DropBox () Endif ' Give wall of boxes a bump! If Keyboard.KeyDown (Key.Space) BumpWall () Endif ' Quit... If Keyboard.KeyHit (Key.Escape) App.Terminate () Endif ' Shadows on/off... If Keyboard.KeyHit (Key.S) light.CastsShadow = Not light.CastsShadow Endif ' Rebuild wall... If Keyboard.KeyHit (Key.R) For Local pb:PhysBox = Eachin boxes pb.model.Destroy () boxes.Remove (pb) Next BuildWall (WALL_WIDTH, WALL_HEIGHT) Endif ' Speed booster... If Keyboard.KeyDown (Key.LeftShift) cam_speed = CAMERA_SPEED_BOOST Else cam_speed = 1.0 Endif ' Forward... If Keyboard.KeyDown (Key.A) cam.Move (0.0, 0.0, CAMERA_SPEED_NORMAL * cam_speed) Endif ' Back... If Keyboard.KeyDown (Key.Z) cam.Move (0.0, 0.0, -CAMERA_SPEED_NORMAL * cam_speed) Endif ' Rotation... If Keyboard.KeyDown (Key.Left) cam.Rotate (0.0, 1.0, 0.0) Endif If Keyboard.KeyDown (Key.Right) cam.Rotate (0.0, -1.0, 0.0) Endif If Keyboard.KeyDown (Key.Up) cam.Rotate (1.0, 0.0, 0.0, True) Endif If Keyboard.KeyDown (Key.Down) cam.Rotate (-1.0, 0.0, 0.0, True) Endif End ' Helper... Method ShadowText:Void (canvas:Canvas, s:String, x:Float, y:Float) canvas.Color = Color.Black canvas.DrawText (s, x + 1, y + 1) canvas.Color = Color.White canvas.DrawText (s, x, y) End   Method RenderText (canvas:Canvas) ShadowText (canvas, "FPS: " + App.FPS, 20.0, 20.0) ShadowText (canvas, "A/Z + Cursors to move camera", 20.0, 40.0) ShadowText (canvas, "SHIFT to boost", 20.0, 60.0) ShadowText (canvas, "R to rebuild wall", 20.0, 100.0) ShadowText (canvas, "S to toggle shadows", 20.0, 120.0) ShadowText (canvas, "SPACE to boost boxes", 20.0, 140.0) ShadowText (canvas, "D to drop more boxes into scene", 20.0, 160.0) ShadowText (canvas, "Boxes: " + boxes.Count (), 20.0, 200.0) End Method OnRender (canvas:Canvas) Override UpdateGame () ' Process controls/game world RequestRender () ' Ask window to render itself scene.Update () ' Update scene AND PHYSICS; IMPORTANT!   scene.Render (canvas) ' Render scene RenderText (canvas) ' Add text End End Function Run3D (title:String, width:Int, height:Int, flags:WindowFlags = WindowFlags.Center) New AppInstance New Game (title, width, height, flags) App.Run () End   Function Main () Run3D ("3D Scene", 960, 540, WindowFlags.Center) ' 1/4 HD! ' Run3D ("3D Scene", 1920, 1080, WindowFlags.Fullscreen) End

[DruggedBunnyParticipant]

OK, fixed this (thanks, skidracer!)…

1) Added #Import “<bullet>”

2) Added body.btBody.setActivationState (bullet.DISABLE_DEACTIVATION) in PhysBox.Start ()

I suppose it’s just because it’s early days, but guess RigidBody would eventually expand to give more direct access to the rest of this stuff — it took a little bit of digging around in the source, and I don’t know what might get made private over time.

(I get that making most bodies sleep is expected, BTW!)

Reading Bullet resources online today, hope to see constraints come in next, and I notice there’s a built-in vehicle class — would be awesome to see that in mojo3d as standard (with demo, cough)!

Stiil, early days and plenty to learn with what’s there…

Code at top updated.

[DruggedBunnyParticipant]

Looks good, thanks, Simon… will see if we have access to it later!

[DruggedBunnyParticipant]

Updated code to drop new boxes on hitting D — run the program, let boxes settle for 5 seconds, confirm no longer responding to B, then drop a box so it collides. They will now respond to B.

[DruggedBunnyParticipant]

Actually, they’re (apparently) being deactivated, not removed from the simulation — if some stop responding but others are still active (you need some settled on the ground for 5 seconds, while some are still in the air, to create this situation), they can be brought back into play when hit by others.

I assume this is some default Bullet setup…

It can also be way less than 5 seconds…

(If all are settled and non-responsive, BTW, hit Space to rebuild the wall and thereby bring all boxes into play.)

[DruggedBunnyParticipant]

Nice, thanks nerobot.

[DruggedBunnyParticipant]

Just posting working versions with List and Stack (manual iteration) variants… quite different code needed for each! (For quick reference, the Game class’s boxes field is the container in both cases.)

List:

Monkey

#Import "<std>" #Import "<mojo>" #Import "<mojo3d>" Using std.. Using mojo.. Using mojo3d.. Const SPEW_BOXES:Int = 100 ' How many boxes to add to scene Class PhysBox Class PhysParams Field mass:Float Field group:Short Field mask:Short End Field box:Boxf Field model:Model Field collider:BoxCollider Field body:RigidBody Field init:PhysParams Method New (width:Float = 1, height:Float = 1, depth:Float = 1, mass:Float = 1, material:Material = Null, group:Int = 1, mask:Int = 1) ' Store setup params for PhysBox.Start () init = New PhysParams init.mass = mass init.group = group init.mask = mask If Not material material = New PbrMaterial (Color.Red) Endif box = New Boxf (-width * 0.5, -height * 0.5, -depth * 0.5, width * 0.5, height * 0.5, depth * 0.5) model = Model.CreateBox (box, 8, 8, 8, material) End Method Start () collider = New BoxCollider (model) body = New RigidBody (model) collider.Box = box body.Mass = init.mass body.CollisionGroup = init.group body.CollisionMask = init.mask box = Null init = Null End Method Move (x:Float, y:Float, z:Float) model.Move (x, y, z) End Method Rotate (pitch:Float, roll:Float, yaw:Float, localspace:Bool = False) model.Rotate (pitch, roll, yaw, localspace) End End Class Game Extends Window Const CAMERA_MOVE:Float = 0.05 Const CAMERA_BOOST:Float = 4.0 Field cam_boost:Float = 1.0 Field scene:Scene Field cam:Camera Field light:Light Field ground:PhysBox Field boxes:List <PhysBox> Method New (title:String, width:Int, height:Int, flags:WindowFlags) Super.New (title, width, height, flags) SwapInterval = 1 CreateArena (15) End Method CreateArena:Void (ground_size:Float = 100) SeedRnd (Millisecs ()) Local pm:PbrMaterial = New PbrMaterial (New Color (0, 1, 0, 0.25)) pm.BlendMode = BlendMode.Alpha scene = Scene.GetCurrent () ground = New PhysBox (ground_size, 1, ground_size, 0, pm)'New PbrMaterial (Color.Green * 0.25)) cam = New Camera light = New Light scene.AmbientLight = Color.White * 0.75 scene.ClearColor = Color.Sky * 0.75 cam.FOV = 100 cam.Move (0, 20, -20) ground.Move (0, -5, 0) ground.Start () cam.Near = 0.01 cam.Far = 1000 light.CastsShadow = True light.Range = 1000 light.Move (0, 50, 10) cam.PointAt (ground.model) light.PointAt (ground.model) SpewBoxes () End Method SpewBoxes (num:Int = SPEW_BOXES) boxes = New List <PhysBox> For Local loop:Int = 1 To num Local scale:Float = Rnd (0.5, 4.0) Local color:Color = New Color (Rnd (0.4, 1.0), Rnd (0.4, 1.0), Rnd (0.4, 1.0)) ' Just for clarity in New below... Local dimension:Float = scale Local mass:Float = scale ' Create new PhysBox... Local pb:PhysBox = New PhysBox (dimension, dimension, dimension, mass, New PbrMaterial (color)) ' Position PhysBox... pb.Move (Rnd (-10, 10), Rnd (10, 100), Rnd (-10, 10)) pb.Rotate (Rnd (360), Rnd (360), Rnd (360)) ' Start its physics... pb.Start () boxes.Add (pb) Next End Method UpdateBoxes () For Local pb:PhysBox = Eachin boxes If pb.model.Y < -20 pb.model.Scale = pb.model.Scale * 0.75 If pb.model.Scale.x < 0.01 pb.model.Destroy () boxes.Remove (pb) Endif Endif Next End Method UpdateGame () UpdateBoxes () If Keyboard.KeyHit (Key.Escape) App.Terminate () Endif If Keyboard.KeyHit (Key.S) light.CastsShadow = Not light.CastsShadow Endif If Keyboard.KeyHit (Key.Space) For Local pb:PhysBox = Eachin boxes pb.model.Destroy () boxes.Remove (pb) Next SpewBoxes () Endif If Keyboard.KeyDown (Key.LeftShift) cam_boost = CAMERA_BOOST Else cam_boost = 1.0 Endif If Keyboard.KeyDown (Key.A) cam.Move (0.0, 0.0, CAMERA_MOVE * cam_boost) Endif If Keyboard.KeyDown (Key.Z) cam.Move (0.0, 0.0, -CAMERA_MOVE * cam_boost) Endif If Keyboard.KeyDown (Key.Left) cam.Rotate (0.0, 1.0, 0.0) Endif If Keyboard.KeyDown (Key.Right) cam.Rotate (0.0, -1.0, 0.0) Endif If Keyboard.KeyDown (Key.Up) cam.Rotate (1.0, 0.0, 0.0, True) Endif If Keyboard.KeyDown (Key.Down) cam.Rotate (-1.0, 0.0, 0.0, True) Endif End Method ShadowText:Void (canvas:Canvas, s:String, x:Float, y:Float) canvas.Color = Color.Black canvas.DrawText (s, x + 1, y + 1) canvas.Color = Color.White canvas.DrawText (s, x, y) End Method RenderText (canvas:Canvas) ShadowText (canvas, "FPS: " + App.FPS, 20.0, 20.0) ShadowText (canvas, "A/Z + Cursors to move camera", 20.0, 40.0) ShadowText (canvas, "SHIFT to boost", 20.0, 60.0) ShadowText (canvas, "SPACE to spew boxes", 20.0, 80.0) ShadowText (canvas, "S to toggle shadows", 20.0, 100.0) ShadowText (canvas, "Boxes: " + boxes.Count (), 20.0, 140.0) End Method OnRender (canvas:Canvas) Override UpdateGame () RequestRender () scene.Update () scene.Render (canvas, cam) RenderText (canvas) End End Function Run3D (title:String, width:Int, height:Int, flags:WindowFlags = WindowFlags.Center) New AppInstance New Game (title, width, height, flags) App.Run () End Function Main () Run3D ("3D Scene", 960, 540, WindowFlags.Center) ' 1/4 HD! ' Run3D ("3D Scene", 1920, 1080, WindowFlags.Fullscreen) End

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#Import "<std>" #Import "<mojo>" #Import "<mojo3d>" Using std.. Using mojo.. Using mojo3d.. Const SPEW_BOXES:Int = 100 ' How many boxes to add to scene Class PhysBox   Class PhysParams Field mass:Float Field group:Short Field mask:Short End Field box:Boxf Field model:Model Field collider:BoxCollider Field body:RigidBody   Field init:PhysParams Method New (width:Float = 1, height:Float = 1, depth:Float = 1, mass:Float = 1, material:Material = Null, group:Int = 1, mask:Int = 1)   ' Store setup params for PhysBox.Start () init = New PhysParams init.mass = mass init.group = group init.mask = mask If Not material material = New PbrMaterial (Color.Red) Endif box = New Boxf (-width * 0.5, -height * 0.5, -depth * 0.5, width * 0.5, height * 0.5, depth * 0.5) model = Model.CreateBox (box, 8, 8, 8, material)   End   Method Start ()   collider = New BoxCollider (model) body = New RigidBody (model) collider.Box = box body.Mass = init.mass body.CollisionGroup = init.group body.CollisionMask = init.mask   box = Null init = Null End Method Move (x:Float, y:Float, z:Float) model.Move (x, y, z) End   Method Rotate (pitch:Float, roll:Float, yaw:Float, localspace:Bool = False) model.Rotate (pitch, roll, yaw, localspace) End End Class Game Extends Window Const CAMERA_MOVE:Float = 0.05 Const CAMERA_BOOST:Float = 4.0 Field cam_boost:Float = 1.0 Field scene:Scene Field cam:Camera Field light:Light Field ground:PhysBox   Field boxes:List <PhysBox> Method New (title:String, width:Int, height:Int, flags:WindowFlags) Super.New (title, width, height, flags)   SwapInterval = 1 CreateArena (15) End Method CreateArena:Void (ground_size:Float = 100)   SeedRnd (Millisecs ()) Local pm:PbrMaterial = New PbrMaterial (New Color (0, 1, 0, 0.25)) pm.BlendMode = BlendMode.Alpha scene = Scene.GetCurrent () ground = New PhysBox (ground_size, 1, ground_size, 0,  pm)'New PbrMaterial (Color.Green * 0.25)) cam = New Camera light = New Light scene.AmbientLight = Color.White * 0.75 scene.ClearColor = Color.Sky * 0.75   cam.FOV = 100 cam.Move (0, 20, -20) ground.Move (0, -5, 0) ground.Start () cam.Near = 0.01 cam.Far = 1000 light.CastsShadow = True light.Range = 1000   light.Move (0, 50, 10) cam.PointAt (ground.model) light.PointAt (ground.model)   SpewBoxes () End   Method SpewBoxes (num:Int = SPEW_BOXES) boxes = New List <PhysBox> For Local loop:Int = 1 To num Local scale:Float = Rnd (0.5, 4.0) Local color:Color = New Color (Rnd (0.4, 1.0), Rnd (0.4, 1.0), Rnd (0.4, 1.0))   ' Just for clarity in New below... Local dimension:Float = scale Local mass:Float = scale ' Create new PhysBox... Local pb:PhysBox = New PhysBox (dimension, dimension, dimension, mass, New PbrMaterial (color)) ' Position PhysBox... pb.Move (Rnd (-10, 10), Rnd (10, 100), Rnd (-10, 10)) pb.Rotate (Rnd (360), Rnd (360), Rnd (360))   ' Start its physics... pb.Start () boxes.Add (pb) Next End   Method UpdateBoxes ()   For Local pb:PhysBox = Eachin boxes   If pb.model.Y < -20   pb.model.Scale = pb.model.Scale * 0.75   If pb.model.Scale.x < 0.01 pb.model.Destroy () boxes.Remove (pb) Endif   Endif   Next   End Method UpdateGame () UpdateBoxes () If Keyboard.KeyHit (Key.Escape) App.Terminate () Endif If Keyboard.KeyHit (Key.S) light.CastsShadow = Not light.CastsShadow Endif If Keyboard.KeyHit (Key.Space) For Local pb:PhysBox = Eachin boxes pb.model.Destroy () boxes.Remove (pb) Next SpewBoxes () Endif If Keyboard.KeyDown (Key.LeftShift) cam_boost = CAMERA_BOOST Else cam_boost = 1.0 Endif If Keyboard.KeyDown (Key.A) cam.Move (0.0, 0.0, CAMERA_MOVE * cam_boost) Endif If Keyboard.KeyDown (Key.Z) cam.Move (0.0, 0.0, -CAMERA_MOVE * cam_boost) Endif If Keyboard.KeyDown (Key.Left) cam.Rotate (0.0, 1.0, 0.0) Endif If Keyboard.KeyDown (Key.Right) cam.Rotate (0.0, -1.0, 0.0) Endif If Keyboard.KeyDown (Key.Up) cam.Rotate (1.0, 0.0, 0.0, True) Endif If Keyboard.KeyDown (Key.Down) cam.Rotate (-1.0, 0.0, 0.0, True) Endif End Method ShadowText:Void (canvas:Canvas, s:String, x:Float, y:Float) canvas.Color = Color.Black canvas.DrawText (s, x + 1, y + 1) canvas.Color = Color.White canvas.DrawText (s, x, y) End Method RenderText (canvas:Canvas) ShadowText (canvas, "FPS: " + App.FPS, 20.0, 20.0) ShadowText (canvas, "A/Z + Cursors to move camera", 20.0, 40.0) ShadowText (canvas, "SHIFT to boost", 20.0, 60.0) ShadowText (canvas, "SPACE to spew boxes", 20.0, 80.0) ShadowText (canvas, "S to toggle shadows", 20.0, 100.0) ShadowText (canvas, "Boxes: " + boxes.Count (), 20.0, 140.0) End Method OnRender (canvas:Canvas) Override UpdateGame () RequestRender () scene.Update () scene.Render (canvas, cam) RenderText (canvas) End End Function Run3D (title:String, width:Int, height:Int, flags:WindowFlags = WindowFlags.Center) New AppInstance New Game (title, width, height, flags) App.Run () End Function Main () Run3D ("3D Scene", 960, 540, WindowFlags.Center) ' 1/4 HD! ' Run3D ("3D Scene", 1920, 1080, WindowFlags.Fullscreen) End

Stack:

Monkey

#Import "<std>" #Import "<mojo>" #Import "<mojo3d>" Using std.. Using mojo.. Using mojo3d.. Const SPEW_BOXES:Int = 100 ' How many boxes to add to scene Class PhysBox Class PhysParams Field mass:Float Field group:Short Field mask:Short End Field box:Boxf Field model:Model Field collider:BoxCollider Field body:RigidBody Field init:PhysParams Method New (width:Float = 1, height:Float = 1, depth:Float = 1, mass:Float = 1, material:Material = Null, group:Int = 1, mask:Int = 1) ' Store setup params for PhysBox.Start () init = New PhysParams init.mass = mass init.group = group init.mask = mask If Not material material = New PbrMaterial (Color.Red) Endif box = New Boxf (-width * 0.5, -height * 0.5, -depth * 0.5, width * 0.5, height * 0.5, depth * 0.5) model = Model.CreateBox (box, 8, 8, 8, material) End Method Start () collider = New BoxCollider (model) body = New RigidBody (model) collider.Box = box body.Mass = init.mass body.CollisionGroup = init.group body.CollisionMask = init.mask box = Null init = Null End Method Move (x:Float, y:Float, z:Float) model.Move (x, y, z) End Method Rotate (pitch:Float, roll:Float, yaw:Float, localspace:Bool = False) model.Rotate (pitch, roll, yaw, localspace) End End Class Game Extends Window Const CAMERA_MOVE:Float = 0.05 Const CAMERA_BOOST:Float = 4.0 Field cam_boost:Float = 1.0 Field scene:Scene Field cam:Camera Field light:Light Field ground:PhysBox Field boxes:Stack <PhysBox> Method New (title:String, width:Int, height:Int, flags:WindowFlags) Super.New (title, width, height, flags) SwapInterval = 1 CreateArena (15) End Method CreateArena:Void (ground_size:Float = 100) SeedRnd (Millisecs ()) Local pm:PbrMaterial = New PbrMaterial (New Color (0, 1, 0, 0.25)) pm.BlendMode = BlendMode.Alpha scene = Scene.GetCurrent () ground = New PhysBox (ground_size, 1, ground_size, 0, pm)'New PbrMaterial (Color.Green * 0.25)) cam = New Camera light = New Light scene.AmbientLight = Color.White * 0.75 scene.ClearColor = Color.Sky * 0.75 cam.FOV = 100 cam.Move (0, 20, -20) ground.Move (0, -5, 0) ground.Start () cam.Near = 0.01 cam.Far = 1000 light.CastsShadow = True light.Range = 1000 light.Move (0, 50, 10) cam.PointAt (ground.model) light.PointAt (ground.model) SpewBoxes () End Method SpewBoxes (num:Int = SPEW_BOXES) boxes = New Stack <PhysBox> For Local loop:Int = 1 To num Local scale:Float = Rnd (0.5, 4.0) Local color:Color = New Color (Rnd (0.4, 1.0), Rnd (0.4, 1.0), Rnd (0.4, 1.0)) ' Just for clarity in New below... Local dimension:Float = scale Local mass:Float = scale ' Create new PhysBox... Local pb:PhysBox = New PhysBox (dimension, dimension, dimension, mass, New PbrMaterial (color)) ' Position PhysBox... pb.Move (Rnd (-10, 10), Rnd (10, 100), Rnd (-10, 10)) pb.Rotate (Rnd (360), Rnd (360), Rnd (360)) ' Start its physics... pb.Start () boxes.Add (pb) Next End Method UpdateBoxes () Local iter:Stack <PhysBox>.Iterator Local pb:PhysBox iter = boxes.All () While Not iter.AtEnd pb = iter.Current If pb.model.Y < -20 pb.model.Scale = pb.model.Scale * 0.75 If pb.model.Scale.x < 0.01 pb.model.Destroy () iter.Erase () Else iter.Bump () Endif Else iter.Bump () Endif Wend End Method UpdateGame () UpdateBoxes () If Keyboard.KeyHit (Key.Escape) App.Terminate () Endif If Keyboard.KeyHit (Key.S) light.CastsShadow = Not light.CastsShadow Endif If Keyboard.KeyHit (Key.Space) Local pb:PhysBox Local iter:Stack <PhysBox>.Iterator iter = boxes.All () While Not iter.AtEnd pb = iter.Current pb.model.Destroy () iter.Erase () Wend ' For Local pb:PhysBox = Eachin boxes ' pb.model.Destroy () ' boxes.Remove (pb) ' Next SpewBoxes () Endif If Keyboard.KeyDown (Key.LeftShift) cam_boost = CAMERA_BOOST Else cam_boost = 1.0 Endif If Keyboard.KeyDown (Key.A) cam.Move (0.0, 0.0, CAMERA_MOVE * cam_boost) Endif If Keyboard.KeyDown (Key.Z) cam.Move (0.0, 0.0, -CAMERA_MOVE * cam_boost) Endif If Keyboard.KeyDown (Key.Left) cam.Rotate (0.0, 1.0, 0.0) Endif If Keyboard.KeyDown (Key.Right) cam.Rotate (0.0, -1.0, 0.0) Endif If Keyboard.KeyDown (Key.Up) cam.Rotate (1.0, 0.0, 0.0, True) Endif If Keyboard.KeyDown (Key.Down) cam.Rotate (-1.0, 0.0, 0.0, True) Endif End Method ShadowText:Void (canvas:Canvas, s:String, x:Float, y:Float) canvas.Color = Color.Black canvas.DrawText (s, x + 1, y + 1) canvas.Color = Color.White canvas.DrawText (s, x, y) End Method RenderText (canvas:Canvas) ShadowText (canvas, "FPS: " + App.FPS, 20.0, 20.0) ShadowText (canvas, "A/Z + Cursors to move camera", 20.0, 40.0) ShadowText (canvas, "SHIFT to boost", 20.0, 60.0) ShadowText (canvas, "SPACE to spew boxes", 20.0, 80.0) ShadowText (canvas, "S to toggle shadows", 20.0, 100.0) ShadowText (canvas, "Boxes: " + boxes.Length, 20.0, 140.0) End Method OnRender (canvas:Canvas) Override UpdateGame () RequestRender () scene.Update () scene.Render (canvas, cam) RenderText (canvas) End End Function Run3D (title:String, width:Int, height:Int, flags:WindowFlags = WindowFlags.Center) New AppInstance New Game (title, width, height, flags) App.Run () End Function Main () Run3D ("3D Scene", 960, 540, WindowFlags.Center) ' 1/4 HD! ' Run3D ("3D Scene", 1920, 1080, WindowFlags.Fullscreen) End

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#Import "<std>" #Import "<mojo>" #Import "<mojo3d>" Using std.. Using mojo.. Using mojo3d.. Const SPEW_BOXES:Int = 100 ' How many boxes to add to scene Class PhysBox   Class PhysParams Field mass:Float Field group:Short Field mask:Short End Field box:Boxf Field model:Model Field collider:BoxCollider Field body:RigidBody   Field init:PhysParams Method New (width:Float = 1, height:Float = 1, depth:Float = 1, mass:Float = 1, material:Material = Null, group:Int = 1, mask:Int = 1)   ' Store setup params for PhysBox.Start () init = New PhysParams init.mass = mass init.group = group init.mask = mask If Not material material = New PbrMaterial (Color.Red) Endif box = New Boxf (-width * 0.5, -height * 0.5, -depth * 0.5, width * 0.5, height * 0.5, depth * 0.5) model = Model.CreateBox (box, 8, 8, 8, material)   End   Method Start ()   collider = New BoxCollider (model) body = New RigidBody (model) collider.Box = box body.Mass = init.mass body.CollisionGroup = init.group body.CollisionMask = init.mask   box = Null init = Null End Method Move (x:Float, y:Float, z:Float) model.Move (x, y, z) End   Method Rotate (pitch:Float, roll:Float, yaw:Float, localspace:Bool = False) model.Rotate (pitch, roll, yaw, localspace) End End Class Game Extends Window Const CAMERA_MOVE:Float = 0.05 Const CAMERA_BOOST:Float = 4.0 Field cam_boost:Float = 1.0 Field scene:Scene Field cam:Camera Field light:Light Field ground:PhysBox   Field boxes:Stack <PhysBox> Method New (title:String, width:Int, height:Int, flags:WindowFlags) Super.New (title, width, height, flags)   SwapInterval = 1 CreateArena (15) End Method CreateArena:Void (ground_size:Float = 100)   SeedRnd (Millisecs ()) Local pm:PbrMaterial = New PbrMaterial (New Color (0, 1, 0, 0.25)) pm.BlendMode = BlendMode.Alpha scene = Scene.GetCurrent () ground = New PhysBox (ground_size, 1, ground_size, 0,  pm)'New PbrMaterial (Color.Green * 0.25)) cam = New Camera light = New Light scene.AmbientLight = Color.White * 0.75 scene.ClearColor = Color.Sky * 0.75   cam.FOV = 100 cam.Move (0, 20, -20) ground.Move (0, -5, 0) ground.Start () cam.Near = 0.01 cam.Far = 1000 light.CastsShadow = True light.Range = 1000   light.Move (0, 50, 10) cam.PointAt (ground.model) light.PointAt (ground.model)   SpewBoxes () End   Method SpewBoxes (num:Int = SPEW_BOXES) boxes = New Stack <PhysBox> For Local loop:Int = 1 To num Local scale:Float = Rnd (0.5, 4.0) Local color:Color = New Color (Rnd (0.4, 1.0), Rnd (0.4, 1.0), Rnd (0.4, 1.0))   ' Just for clarity in New below... Local dimension:Float = scale Local mass:Float = scale ' Create new PhysBox... Local pb:PhysBox = New PhysBox (dimension, dimension, dimension, mass, New PbrMaterial (color)) ' Position PhysBox... pb.Move (Rnd (-10, 10), Rnd (10, 100), Rnd (-10, 10)) pb.Rotate (Rnd (360), Rnd (360), Rnd (360))   ' Start its physics... pb.Start () boxes.Add (pb) Next End   Method UpdateBoxes ()   Local iter:Stack <PhysBox>.Iterator Local pb:PhysBox iter = boxes.All () While Not iter.AtEnd pb = iter.Current If pb.model.Y < -20 pb.model.Scale = pb.model.Scale * 0.75 If pb.model.Scale.x < 0.01 pb.model.Destroy () iter.Erase () Else iter.Bump () Endif Else iter.Bump () Endif Wend End Method UpdateGame () UpdateBoxes () If Keyboard.KeyHit (Key.Escape) App.Terminate () Endif If Keyboard.KeyHit (Key.S) light.CastsShadow = Not light.CastsShadow Endif If Keyboard.KeyHit (Key.Space) Local pb:PhysBox Local iter:Stack <PhysBox>.Iterator   iter = boxes.All ()   While Not iter.AtEnd pb = iter.Current pb.model.Destroy () iter.Erase () Wend ' For Local pb:PhysBox = Eachin boxes ' pb.model.Destroy () ' boxes.Remove (pb) ' Next SpewBoxes () Endif If Keyboard.KeyDown (Key.LeftShift) cam_boost = CAMERA_BOOST Else cam_boost = 1.0 Endif If Keyboard.KeyDown (Key.A) cam.Move (0.0, 0.0, CAMERA_MOVE * cam_boost) Endif If Keyboard.KeyDown (Key.Z) cam.Move (0.0, 0.0, -CAMERA_MOVE * cam_boost) Endif If Keyboard.KeyDown (Key.Left) cam.Rotate (0.0, 1.0, 0.0) Endif If Keyboard.KeyDown (Key.Right) cam.Rotate (0.0, -1.0, 0.0) Endif If Keyboard.KeyDown (Key.Up) cam.Rotate (1.0, 0.0, 0.0, True) Endif If Keyboard.KeyDown (Key.Down) cam.Rotate (-1.0, 0.0, 0.0, True) Endif End Method ShadowText:Void (canvas:Canvas, s:String, x:Float, y:Float) canvas.Color = Color.Black canvas.DrawText (s, x + 1, y + 1) canvas.Color = Color.White canvas.DrawText (s, x, y) End Method RenderText (canvas:Canvas) ShadowText (canvas, "FPS: " + App.FPS, 20.0, 20.0) ShadowText (canvas, "A/Z + Cursors to move camera", 20.0, 40.0) ShadowText (canvas, "SHIFT to boost", 20.0, 60.0) ShadowText (canvas, "SPACE to spew boxes", 20.0, 80.0) ShadowText (canvas, "S to toggle shadows", 20.0, 100.0) ShadowText (canvas, "Boxes: " + boxes.Length, 20.0, 140.0) End Method OnRender (canvas:Canvas) Override UpdateGame () RequestRender () scene.Update () scene.Render (canvas, cam) RenderText (canvas) End End Function Run3D (title:String, width:Int, height:Int, flags:WindowFlags = WindowFlags.Center) New AppInstance New Game (title, width, height, flags) App.Run () End Function Main () Run3D ("3D Scene", 960, 540, WindowFlags.Center) ' 1/4 HD! ' Run3D ("3D Scene", 1920, 1080, WindowFlags.Fullscreen) End

(Found a cooler remove effect than alpha!)

[DruggedBunnyParticipant]

Yeah, that’s great, lots of options there. Even the iterator seems to makes sense… at first glance! Will play…

[Author]

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