private void DrawSprings(SpriteBatch spriteBatch)
{
for (int i = 0; i < _physicsSimulator.SpringList.Count; i++)
{
if (!(_physicsSimulator.SpringList[i] is FixedLinearSpring))
{
continue;
}
FixedLinearSpring fixedLinearSpring = (FixedLinearSpring)_physicsSimulator.SpringList[i];
_worldAttachPoint = fixedLinearSpring.WorldAttachPoint;
_body1AttachPointInWorldCoordinates =
fixedLinearSpring.Body.GetWorldPosition(fixedLinearSpring.BodyAttachPoint);
_springCircleBrush.Draw(spriteBatch, _body1AttachPointInWorldCoordinates);
_springCircleBrush.Draw(spriteBatch, _worldAttachPoint);
Vector2.Lerp(ref _worldAttachPoint, ref _body1AttachPointInWorldCoordinates, .25f, out _vectorTemp1);
_springCircleBrush.Draw(spriteBatch, _vectorTemp1);
Vector2.Lerp(ref _worldAttachPoint, ref _body1AttachPointInWorldCoordinates, .50f, out _vectorTemp1);
_springCircleBrush.Draw(spriteBatch, _vectorTemp1);
Vector2.Lerp(ref _worldAttachPoint, ref _body1AttachPointInWorldCoordinates, .75f, out _vectorTemp1);
_springCircleBrush.Draw(spriteBatch, _vectorTemp1);
_springLineBrush.Draw(spriteBatch, _body1AttachPointInWorldCoordinates,
fixedLinearSpring.WorldAttachPoint);
}
for (int i = 0; i < _physicsSimulator.SpringList.Count; i++)
{
if (!(_physicsSimulator.SpringList[i] is LinearSpring))
{
continue;
}
LinearSpring linearSpring = (LinearSpring)_physicsSimulator.SpringList[i];
_attachPoint1 = linearSpring.AttachPoint1;
_attachPoint2 = linearSpring.AttachPoint2;
linearSpring.Body1.GetWorldPosition(ref _attachPoint1, out _body1AttachPointInWorldCoordinates);
linearSpring.Body2.GetWorldPosition(ref _attachPoint2, out _body2AttachPointInWorldCoordinates);
_springCircleBrush.Draw(spriteBatch, _body1AttachPointInWorldCoordinates);
_springCircleBrush.Draw(spriteBatch, _body2AttachPointInWorldCoordinates);
Vector2.Lerp(ref _body1AttachPointInWorldCoordinates, ref _body2AttachPointInWorldCoordinates, .25f,
out _vectorTemp1);
_springCircleBrush.Draw(spriteBatch, _vectorTemp1);
Vector2.Lerp(ref _body1AttachPointInWorldCoordinates, ref _body2AttachPointInWorldCoordinates, .50f,
out _vectorTemp1);
_springCircleBrush.Draw(spriteBatch, _vectorTemp1);
Vector2.Lerp(ref _body1AttachPointInWorldCoordinates, ref _body2AttachPointInWorldCoordinates, .75f,
out _vectorTemp1);
_springCircleBrush.Draw(spriteBatch, _vectorTemp1);
_springLineBrush.Draw(spriteBatch, _body1AttachPointInWorldCoordinates,
_body2AttachPointInWorldCoordinates);
}
}
public static void Start()
{
RuntimeObject.Init();
RigidBody.Init();
CollisionBody.Init();
CollisionSensor.Init();
TransportSurface.Init();
CollisionMaterial.Init();
HingeJoint.Init();
SlidingJoint.Init();
CylindricalJoint.Init();
FixedJoint.Init();
BallJoint.Init();
AngularLimit.Init();
LinearLimit.Init();
AngularSpring.Init();
LinearSpring.Init();
SpeedControl.Init();
PositionControl.Init();
BreakingConstraint.Init();
GearCoupling.Init();
CamCoupling.Init();
ElecCamCoupling.Init();
PreventCollision.Init();
ChangeMaterial.Init();
ComponentPart.Init();
SourceBehavior.Init();
SinkBehavior.Init();
GraphControl.Init();
ExternalConnection.Init();
SignalAdapter.Init();
Signal.Init();
ProxyObject.Init();
RuntimeParameters.Init();
}
public LinearSpring CreateLinearSpring(Body body1, Vector2 attachPoint1, Body body2, Vector2 attachPoint2,
float springConstant, float dampningConstant)
{
LinearSpring linearSpring = new LinearSpring(body1, attachPoint1, body2, attachPoint2, springConstant,
dampningConstant);
return(linearSpring);
}
public LinearSpring CreateLinearSpring(PhysicsSimulator physicsSimulator, Body body1, Vector2 attachPoint1,
Body body2, Vector2 attachPoint2, float springConstant,
float dampningConstant)
{
LinearSpring linearSpring = CreateLinearSpring(body1, attachPoint1, body2, attachPoint2, springConstant,
dampningConstant);
physicsSimulator.Add(linearSpring);
return(linearSpring);
}
public override void LoadContent()
{
_chainTexture = DrawingHelper.CreateRectangleTexture(ScreenManager.GraphicsDevice, 20, 10, Color.White,
Color.Black);
_obstaclesTexture = DrawingHelper.CreateRectangleTexture(ScreenManager.GraphicsDevice, 40, 40, Color.Brown,
Color.Black);
_wheelTexture = DrawingHelper.CreateCircleTexture(ScreenManager.GraphicsDevice, 45, 2, Color.White, Color.Black);
_chainOrigin = new Vector2(_chainTexture.Width / 2f, _chainTexture.Height / 2f);
_wheelOrigin = new Vector2(_wheelTexture.Width / 2f, _wheelTexture.Height / 2f);
_obstaclesOrigin = new Vector2(_obstaclesTexture.Width / 2f, _obstaclesTexture.Height / 2f);
Vector2 center = new Vector2(400, 500);
_controlPoints = new Vertices();
_controlPoints.Add(new Vector2(-15, -50) + center);
_controlPoints.Add(new Vector2(-50, -50) + center);
_controlPoints.Add(new Vector2(-100, -25) + center);
_controlPoints.Add(new Vector2(-100, 25) + center);
_controlPoints.Add(new Vector2(-50, 50) + center);
_controlPoints.Add(new Vector2(50, 50) + center);
_controlPoints.Add(new Vector2(100, 25) + center);
_controlPoints.Add(new Vector2(100, -25) + center);
_controlPoints.Add(new Vector2(50, -50) + center);
_controlPoints.Add(new Vector2(-10, -50) + center);
_track = ComplexFactory.Instance.CreateTrack(PhysicsSimulator, _controlPoints, 20.0f, 10.0f, 3.0f, true, 2, LinkType.RevoluteJoint);
foreach (Geom g in _track.Geoms)
{
g.FrictionCoefficient = 1.0f;
}
_wheel1 = BodyFactory.Instance.CreateCircleBody(PhysicsSimulator, 45, 30);
_wheel1.Position = new Vector2(-50, 0) + center;
_wheel2 = BodyFactory.Instance.CreateCircleBody(PhysicsSimulator, 45, 30);
_wheel2.Position = new Vector2(50, 0) + center;
_wheelg = GeomFactory.Instance.CreateCircleGeom(PhysicsSimulator, _wheel1, 45, 36);
_wheelg.FrictionCoefficient = 1.0f;
_wheelg = GeomFactory.Instance.CreateCircleGeom(PhysicsSimulator, _wheel2, 45, 36);
_wheelg.FrictionCoefficient = 1.0f;
_spring = SpringFactory.Instance.CreateLinearSpring(PhysicsSimulator, _wheel1, new Vector2(), _wheel2, new Vector2(), 5200, 3050);
_spring.RestLength += 20;
_obstacles = new GenericList <Body>();
_obstaclesg = new GenericList <Geom>();
base.LoadContent();
}
public void Connect(string strName, out LinearSpring item)
{
ExAddProperty(this.m_pSelf, strName, 4, 0x6658);
item = null;
}
public void Connect(string strName, out LinearSpring item)
{
item = RuntimeObject.FromPtr(ExGetProperty(this.m_pSelf, strName, 4, 0x6658)) as LinearSpring;
}