public void Open(DemoOpenInfo demoInfo)
{
this.window = demoInfo.Window;
this.viewport = demoInfo.Viewport;
this.scene = demoInfo.Scene;
this.demoInfo = demoInfo;
Open();
}
public void Open(DemoOpenInfo demoInfo)
{
this.window = demoInfo.Window;
this.viewport = demoInfo.Viewport;
this.scene = demoInfo.Scene;
this.demoInfo = demoInfo;
Open();
}
public static DisposeCallback RegisterDup(DemoOpenInfo info, List<Body> bodies)
{
LinkedList<Body> removable = new LinkedList<Body>();
Body body = null;
Scalar rotation = 0;
Vector2D scale = new Vector2D(1, 1);
bool duplicate = false;
bool makeJoint = false;
Vector2D anchor = Vector2D.Zero;
int count = 0;
Body bj1 = null;
Body bj2 = null;
EventHandler<ViewportMouseButtonEventArgs> mouseDown = delegate(object sender, ViewportMouseButtonEventArgs e)
{
IntersectionInfo temp;
switch (e.Button)
{
case MouseButton.PrimaryButton:
if (makeJoint)
{
count++;
switch (count)
{
case 1:
for (LinkedListNode<Body> node = removable.First;
node != null;
node = node.Next)
{
Vector2D pos = node.Value.Matrices.ToBody * e.Position;
if (node.Value.Shape.TryGetIntersection(pos, out temp))
{
bj1 = node.Value;
return;
}
}
count--;
break;
case 2:
anchor = e.Position;
break;
case 3:
for (LinkedListNode<Body> node = removable.First;
node != null;
node = node.Next)
{
Vector2D pos = node.Value.Matrices.ToBody * e.Position;
if (node.Value.Shape.TryGetIntersection(pos, out temp))
{
bj2 = node.Value;
return;
}
}
count--;
break;
}
}
else
{
foreach (Body b in bodies)
{
Vector2D pos = b.Matrices.ToBody * e.Position;
if (b.Shape.TryGetIntersection(pos, out temp))
{
body = b.Duplicate();
info.Scene.AddGraphic(new BodyGraphic(body));
return;
}
}
for (LinkedListNode<Body> node = removable.First;
node != null;
node = node.Next)
{
Vector2D pos = node.Value.Matrices.ToBody * e.Position;
if (node.Value.Shape.TryGetIntersection(pos, out temp))
{
if (duplicate)
{
body = node.Value.Duplicate();
info.Scene.AddGraphic(new BodyGraphic(body));
return;
}
else
{
body = node.Value;
removable.Remove(node);
return;
}
}
}
}
break;
case MouseButton.SecondaryButton:
for (LinkedListNode<Body> node = removable.First;
node != null;
node = node.Next)
{
Vector2D pos = node.Value.Matrices.ToBody * e.Position;
if (node.Value.Shape.TryGetIntersection(pos, out temp))
{
node.Value.Lifetime.IsExpired = true;
removable.Remove(node);
return;
}
}
break;
}
};
EventHandler<ViewportMouseMotionEventArgs> mouseMotion = delegate(object sender, ViewportMouseMotionEventArgs e)
{
if (body != null)
{
body.State.Position.Linear = e.Position;
}
};
EventHandler<ViewportMouseButtonEventArgs> mouseUp = delegate(object sender, ViewportMouseButtonEventArgs e)
{
if (body != null)
{
removable.AddLast(body);
body = null;
}
};
EventHandler<KeyboardEventArgs> keyDown = delegate(object sender, KeyboardEventArgs e)
{
switch (e.Key)
{
case Key.Q:
rotation -= .05f;
break;
case Key.E:
rotation += .05f;
break;
case Key.W:
scale.Y += .05f;
break;
case Key.S:
scale.Y -= .05f;
break;
case Key.A:
scale.X -= .05f;
break;
case Key.D:
scale.X += .05f;
break;
case Key.LeftControl:
case Key.RightControl:
duplicate = true;
break;
case Key.LeftShift:
case Key.RightShift:
count = 0;
makeJoint = true;
break;
}
};
EventHandler<KeyboardEventArgs> keyUp = delegate(object sender, KeyboardEventArgs e)
{
switch (e.Key)
{
case Key.Q:
rotation += .05f;
break;
case Key.E:
rotation -= .05f;
break;
case Key.W:
scale.Y -= .05f;
break;
case Key.S:
scale.Y += .05f;
break;
case Key.A:
scale.X += .05f;
break;
case Key.D:
scale.X -= .05f;
break;
case Key.LeftControl:
case Key.RightControl:
duplicate = false;
break;
case Key.LeftShift:
case Key.RightShift:
switch (count)
{
case 2:
info.Scene.Engine.AddJoint(new FixedHingeJoint(bj1, anchor, new Lifespan()));
break;
case 3:
info.Scene.Engine.AddJoint(new HingeJoint(bj1, bj2, anchor, new Lifespan()));
break;
}
count = 0;
makeJoint = false;
break;
}
};
EventHandler<DrawEventArgs> onDraw = delegate(object sender, DrawEventArgs e)
{
if (body != null)
{
body.State.Position.Angular += rotation;
body.Transformation *= Matrix2x3.FromScale(scale);
body.ApplyPosition();
}
};
info.Scene.BeginDrawing += onDraw;
info.Viewport.MouseDown += mouseDown;
info.Viewport.MouseMotion += mouseMotion;
info.Viewport.MouseUp += mouseUp;
Events.KeyboardDown += keyDown;
Events.KeyboardUp += keyUp;
return delegate()
{
info.Scene.BeginDrawing -= onDraw;
info.Viewport.MouseDown -= mouseDown;
info.Viewport.MouseMotion -= mouseMotion;
info.Viewport.MouseUp -= mouseUp;
Events.KeyboardDown -= keyDown;
Events.KeyboardUp -= keyUp;
};
}
public static DisposeCallback RegisterDup(DemoOpenInfo info, List <Body> bodies)
{
LinkedList <Body> removable = new LinkedList <Body>();
Body body = null;
Scalar rotation = 0;
Vector2D scale = new Vector2D(1, 1);
bool duplicate = false;
bool makeJoint = false;
Vector2D anchor = Vector2D.Zero;
int count = 0;
Body bj1 = null;
Body bj2 = null;
EventHandler <ViewportMouseButtonEventArgs> mouseDown = delegate(object sender, ViewportMouseButtonEventArgs e)
{
IntersectionInfo temp;
switch (e.Button)
{
case MouseButton.PrimaryButton:
if (makeJoint)
{
count++;
switch (count)
{
case 1:
for (LinkedListNode <Body> node = removable.First;
node != null;
node = node.Next)
{
Vector2D pos = node.Value.Matrices.ToBody * e.Position;
if (node.Value.Shape.TryGetIntersection(pos, out temp))
{
bj1 = node.Value;
return;
}
}
count--;
break;
case 2:
anchor = e.Position;
break;
case 3:
for (LinkedListNode <Body> node = removable.First;
node != null;
node = node.Next)
{
Vector2D pos = node.Value.Matrices.ToBody * e.Position;
if (node.Value.Shape.TryGetIntersection(pos, out temp))
{
bj2 = node.Value;
return;
}
}
count--;
break;
}
}
else
{
foreach (Body b in bodies)
{
Vector2D pos = b.Matrices.ToBody * e.Position;
if (b.Shape.TryGetIntersection(pos, out temp))
{
body = b.Duplicate();
info.Scene.AddGraphic(new BodyGraphic(body));
return;
}
}
for (LinkedListNode <Body> node = removable.First;
node != null;
node = node.Next)
{
Vector2D pos = node.Value.Matrices.ToBody * e.Position;
if (node.Value.Shape.TryGetIntersection(pos, out temp))
{
if (duplicate)
{
body = node.Value.Duplicate();
info.Scene.AddGraphic(new BodyGraphic(body));
return;
}
else
{
body = node.Value;
removable.Remove(node);
return;
}
}
}
}
break;
case MouseButton.SecondaryButton:
for (LinkedListNode <Body> node = removable.First;
node != null;
node = node.Next)
{
Vector2D pos = node.Value.Matrices.ToBody * e.Position;
if (node.Value.Shape.TryGetIntersection(pos, out temp))
{
node.Value.Lifetime.IsExpired = true;
removable.Remove(node);
return;
}
}
break;
}
};
EventHandler <ViewportMouseMotionEventArgs> mouseMotion = delegate(object sender, ViewportMouseMotionEventArgs e)
{
if (body != null)
{
body.State.Position.Linear = e.Position;
}
};
EventHandler <ViewportMouseButtonEventArgs> mouseUp = delegate(object sender, ViewportMouseButtonEventArgs e)
{
if (body != null)
{
removable.AddLast(body);
body = null;
}
};
EventHandler <KeyboardEventArgs> keyDown = delegate(object sender, KeyboardEventArgs e)
{
switch (e.Key)
{
case Key.Q:
rotation -= .05f;
break;
case Key.E:
rotation += .05f;
break;
case Key.W:
scale.Y += .05f;
break;
case Key.S:
scale.Y -= .05f;
break;
case Key.A:
scale.X -= .05f;
break;
case Key.D:
scale.X += .05f;
break;
case Key.LeftControl:
case Key.RightControl:
duplicate = true;
break;
case Key.LeftShift:
case Key.RightShift:
count = 0;
makeJoint = true;
break;
}
};
EventHandler <KeyboardEventArgs> keyUp = delegate(object sender, KeyboardEventArgs e)
{
switch (e.Key)
{
case Key.Q:
rotation += .05f;
break;
case Key.E:
rotation -= .05f;
break;
case Key.W:
scale.Y -= .05f;
break;
case Key.S:
scale.Y += .05f;
break;
case Key.A:
scale.X += .05f;
break;
case Key.D:
scale.X -= .05f;
break;
case Key.LeftControl:
case Key.RightControl:
duplicate = false;
break;
case Key.LeftShift:
case Key.RightShift:
switch (count)
{
case 2:
info.Scene.Engine.AddJoint(new FixedHingeJoint(bj1, anchor, new Lifespan()));
break;
case 3:
info.Scene.Engine.AddJoint(new HingeJoint(bj1, bj2, anchor, new Lifespan()));
break;
}
count = 0;
makeJoint = false;
break;
}
};
EventHandler <DrawEventArgs> onDraw = delegate(object sender, DrawEventArgs e)
{
if (body != null)
{
body.State.Position.Angular += rotation;
body.Transformation *= Matrix2x3.FromScale(scale);
body.ApplyPosition();
}
};
info.Scene.BeginDrawing += onDraw;
info.Viewport.MouseDown += mouseDown;
info.Viewport.MouseMotion += mouseMotion;
info.Viewport.MouseUp += mouseUp;
Events.KeyboardDown += keyDown;
Events.KeyboardUp += keyUp;
return(delegate()
{
info.Scene.BeginDrawing -= onDraw;
info.Viewport.MouseDown -= mouseDown;
info.Viewport.MouseMotion -= mouseMotion;
info.Viewport.MouseUp -= mouseUp;
Events.KeyboardDown -= keyDown;
Events.KeyboardUp -= keyUp;
});
}
