public void Load(Demo demo, PhysicsSimulator physicsSimulator)
{
int radius;
if (_attachPoint == 0 | _attachPoint == 2)
{
radius = _rectangleHeight;
}
else
{
radius = _rectangleWidth;
}
//body is created as rectangle so that it has the moment of inertia closer to the final shape of the object.
_angleSpringleverBody = BodyFactory.Instance.CreateRectangleBody(physicsSimulator, _rectangleWidth,
_rectangleHeight, 1f);
demo.AddRectangleToCanvas(_angleSpringleverBody, Colors.White,
new Vector2(_rectangleWidth, _rectangleHeight));
_rectangleGeom = GeomFactory.Instance.CreateRectangleGeom(physicsSimulator, _angleSpringleverBody,
_rectangleWidth, _rectangleHeight);
_rectangleGeom.FrictionCoefficient = .5f;
_rectangleGeom.CollisionGroup = _collisionGroup;
Vector2 offset = Vector2.Zero;
switch (_attachPoint)
{
case 0:
{
offset = new Vector2(-_rectangleWidth / 2f, 0); //offset to rectangle to left
break;
}
case 1:
{
offset = new Vector2(0, -_rectangleHeight / 2f); //offset to rectangle to top
break;
}
case 2:
{
offset = new Vector2(_rectangleWidth / 2f, 0); //offset to rectangle to right
break;
}
case 3:
{
offset = new Vector2(0, _rectangleHeight / 2f); //offset to rectangle to bottom
break;
}
}
_angleSpringleverBody.Position = _position - offset;
Ellipse circle = demo.AddCircleToCanvas(null, Colors.White, 20);
Demo.CenterAround(circle, _position);
_circleGeom = GeomFactory.Instance.CreateCircleGeom(physicsSimulator, _angleSpringleverBody, radius, 20,
offset, 0);
_circleGeom.FrictionCoefficient = .5f;
_circleGeom.CollisionGroup = _collisionGroup;
JointFactory.Instance.CreateFixedRevoluteJoint(physicsSimulator, _angleSpringleverBody,
_position);
SpringFactory.Instance.CreateFixedAngleSpring(physicsSimulator, _angleSpringleverBody,
_springConstant, _dampningConstant);
}
public void Update()
{
Demo.CenterAround(visual, body.Position);
Demo.SetRotation(visual, Body.Rotation);
}