public void Climb(ref Path p, ref RevoluteJoint j)
{
if (p.Bodies.IndexOf(j.Body2) != 0)
{
Vector2 nextPart = p.Bodies[p.Bodies.IndexOf(j.Body2) - 1].Position;
j.Dispose();
j = null;
hBody.Position = new Vector2(hBody.Position.X - (hBody.Position.X - nextPart.X) / 3, hBody.Position.Y - (hBody.Position.Y - nextPart.Y) / 3);
}
}
/// <summary>
/// Creates a track.
/// </summary>
/// <param name="points">The points.</param>
/// <param name="width">The width.</param>
/// <param name="height">The height.</param>
/// <param name="mass">The mass.</param>
/// <param name="endless">if set to <c>true</c> [endless].</param>
/// <param name="collisionGroup">Collision group for the chain.</param>
/// <param name="type">The joint/spring type.</param>
/// <returns></returns>
public Path CreateTrack(Vertices points, float width, float height, float mass, bool endless, int collisionGroup, LinkType type)
{
Path path = new Path(width, height, mass, endless); // create the path
foreach (Vector2 v in points)
path.Add(v); // add all the points to the path
path.Update(); // update the path
Geom geom;
for (int i = 0; i < path.Bodies.Count; i++)
{
geom = GeomFactory.Instance.CreateRectangleGeom(path.Bodies[i], width, height);
geom.CollisionGroup = collisionGroup;
path.Add(geom); // add a geom to the chain
}
path.LinkBodies(type, Min, Max, SpringConstant, DampingConstant); // link bodies together
return path;
}
/// <summary>
/// Creates a rope.
/// </summary>
/// <param name="start">The start.</param>
/// <param name="end">The end.</param>
/// <param name="width">The width.</param>
/// <param name="height">The height.</param>
/// <param name="mass">The mass.</param>
/// <param name="pinStart">if set to <c>true</c> [pin start].</param>
/// <param name="pinEnd">if set to <c>true</c> [pin end].</param>
/// <param name="type">The joint/spring type.</param>
/// <returns></returns>
public Path CreateRope(Vector2 start, Vector2 end, float width, float height, float mass, bool pinStart,
bool pinEnd, LinkType type)
{
Path path = new Path(width, height, mass, false); // create the path
path.Add(start); // add starting point
path.Add(Path.FindMidpoint(start, end));
// add midpoint of line (must have this because my code needs at least 3 control points)
path.Add(end); // add end point
path.Update(); // call update to create all the bodies
path.LinkBodies(type, Min, Max, SpringConstant, DampingConstant, SpringRestLengthFactor); // link bodies together
if (pinStart)
path.Add(JointFactory.Instance.CreateFixedRevoluteJoint(path.Bodies[0], start));
if (pinEnd)
path.Add(JointFactory.Instance.CreateFixedRevoluteJoint(path.Bodies[path.Bodies.Count - 1],
path.ControlPoints[2]));
foreach (Joint j in path.Joints) // ropes need a little give ;)
{
j.BiasFactor = 0.01f;
j.Softness = 0.05f;
}
return (path);
}
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>(8);
base.LoadContent();
}
public void Finish(PhysicsSimulator pS)
{
chain = ComplexFactory.Instance.CreateChain(pS, startV, endV, bodies, 1f, 1, LinkType.RevoluteJoint);
JointFactory.Instance.CreateFixedRevoluteJoint(pS, chain.Bodies[0], startV);
finished = true;
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
kbCurrent = Keyboard.GetState();
if (kbCurrent.IsKeyDown(Keys.Escape))
this.Exit();
if (kbCurrent.IsKeyDown(Keys.Right) | kbCurrent.IsKeyDown(Keys.D))
{
//heros.hBody.Position = new Vector2(heros.hBody.Position.X + 10, heros.hBody.Position.Y);
heros.hBody.ApplyImpulse(new Vector2(40, 0));
bgX += 2;
if (bgX1 > 1024)
bgX = bgX - 1024;
bgX1 += 4;
if (bgX1 > 1024)
bgX1 = bgX1 - 1024;
}
if (kbCurrent.IsKeyDown(Keys.Left) | kbCurrent.IsKeyDown(Keys.A))
{
//heros.hBody.Position = new Vector2(heros.hBody.Position.X - 10, heros.hBody.Position.Y);
heros.hBody.ApplyImpulse(new Vector2(-40, 0));
bgX -= 2;
if (bgX < 0)
bgX = bgX + 1024;
bgX1 -= 4;
if (bgX1 < 0)
bgX1 = bgX1 + 1024;
}
if (((kbCurrent.IsKeyDown(Keys.Up) & kbPrevious.IsKeyUp(Keys.Up))) | kbCurrent.IsKeyDown(Keys.W) & kbPrevious.IsKeyUp(Keys.W))
{
//heros.hBody.Position = new Vector2(heros.hBody.Position.X, heros.hBody.Position.Y-10);
//if (heros.hBody.GetVelocityAtLocalPoint(new Vector2(16,16)).Y>=-30)
// heros.hBody.ApplyImpulse(new Vector2(0, -800));
if (hand==null)
heros.Jump(-3200);
}
if (kbCurrent.IsKeyDown(Keys.Down))
{
//heros.hBody.Position = new Vector2(heros.hBody.Position.X, heros.hBody.Position.Y + 10);
}
foreach (Path p in pltfrm.rBodies.swings)
foreach (Body b in p.Bodies)
if (heros.hGeom.Collide(b.Position) & hand == null)
{
hand = JointFactory.Instance.CreateRevoluteJoint(physicsSimulator, heros.hBody, b, heros.hBody.Position);
heldRope = p;
}
if ((kbCurrent.IsKeyDown(Keys.Up)|kbCurrent.IsKeyDown(Keys.W)) & hand != null)
heros.Climb(ref heldRope, ref hand);
if ((kbCurrent.IsKeyDown(Keys.Down) | kbCurrent.IsKeyDown(Keys.S)) & hand != null)
heros.SlideDown(ref heldRope, ref hand);
camera.Update(kbCurrent, kbPrevious);
mouseHandle();
physicsSimulator.Update(gameTime.ElapsedGameTime.Milliseconds * .001f);
kbPrevious = kbCurrent;
base.Update(gameTime);
}
/// <summary>
/// Creates a rope.
/// </summary>
/// <param name="start">The start.</param>
/// <param name="end">The end.</param>
/// <param name="width">The width.</param>
/// <param name="height">The height.</param>
/// <param name="mass">The mass.</param>
/// <param name="pinStart">if set to <c>true</c> [pin start].</param>
/// <param name="pinEnd">if set to <c>true</c> [pin end].</param>
/// <param name="collisionGroup">Collision group for the chain.</param>
/// <param name="type">The joint/spring type.</param>
/// <returns></returns>
public Path CreateRope(Vector2 start, Vector2 end, float width, float height, float mass, bool pinStart,
bool pinEnd, int collisionGroup, LinkType type)
{
Path path = new Path(width, height, mass, false); // create the path
path.Add(start); // add starting point
path.Add(Path.FindMidpoint(start, end));
// add midpoint of line (must have this because my code needs at least 3 control points)
path.Add(end); // add end point
path.Update(); // call update to create all the bodies
Geom geom;
for (int i = 0; i < path.Bodies.Count; i++)
{
geom = GeomFactory.Instance.CreateRectangleGeom(path.Bodies[i], width, height);
geom.collisionGroup = collisionGroup;
path.Add(geom); // add a geom to the chain
}
path.LinkBodies(type, Min, Max, SpringConstant, DampingConstant); // link bodies together
if (pinStart)
path.Add(JointFactory.Instance.CreateFixedRevoluteJoint(path.Bodies[0], start));
if (pinEnd)
path.Add(JointFactory.Instance.CreateFixedRevoluteJoint(path.Bodies[path.Bodies.Count - 1],
path.ControlPoints[2]));
foreach (Joint j in path.Joints) // ropes need a little give ;)
{
j.BiasFactor = 0.01f;
j.Softness = 0.05f;
}
return (path);
}
public void SlideDown(ref Path p, ref RevoluteJoint j)
{
if (p.Bodies.IndexOf(j.Body2) != p.Bodies.Count - 1)
{
Vector2 nextPart = p.Bodies[p.Bodies.IndexOf(j.Body2) + 1].Position;
j.Dispose();
j = null;
hBody.Position = new Vector2(hBody.Position.X - (hBody.Position.X - nextPart.X) / 3, hBody.Position.Y - (hBody.Position.Y - nextPart.Y) / 3);
}
else
{
j.Dispose();
j = null;
hBody.Position = new Vector2(hBody.Position.X, hBody.Position.Y + 10);
}
}
public override void LoadContent()
{
_chainTexture = DrawingHelper.CreateRectangleTexture(ScreenManager.GraphicsDevice, 20, 20, Color.White,
Color.Black);
_chainOrigin = new Vector2(_chainTexture.Width / 2f, _chainTexture.Height / 2f);
_chain = ComplexFactory.Instance.CreateChain(PhysicsSimulator, new Vector2(150, 100), new Vector2(200, 300), 20.0f, 10.0f, 1, true, false, LinkType.RevoluteJoint);
_chain.CreateGeoms(PhysicsSimulator, 1);
_chainPin = ComplexFactory.Instance.CreateChain(PhysicsSimulator, new Vector2(250, 100), new Vector2(300, 300), 20.0f, 10.0f, 1, true, false, LinkType.PinJoint);
_chainPin.CreateGeoms(PhysicsSimulator, 2);
ComplexFactory.Instance.SpringConstant = 150; // values inside let us setup additional parameters
ComplexFactory.Instance.DampingConstant = 10;
ComplexFactory.Instance.SpringRestLengthFactor = 1f;
_chainSpring = ComplexFactory.Instance.CreateChain(PhysicsSimulator, new Vector2(350, 100), new Vector2(400, 300), 20.0f, 10.0f, 1, true, false, LinkType.LinearSpring);
_chainSpring.CreateGeoms(PhysicsSimulator, 3);
ComplexFactory.Instance.Min = 0;
ComplexFactory.Instance.Max = 15;
_chainSlide = ComplexFactory.Instance.CreateChain(PhysicsSimulator, new Vector2(450, 100), new Vector2(500, 300), 20.0f, 10.0f, 1, true, false, LinkType.SliderJoint);
_chainSlide.CreateGeoms(PhysicsSimulator, 4);
ComplexFactory.Instance.SpringConstant = 300; // values inside let us setup additional parameters
ComplexFactory.Instance.DampingConstant = 10;
ComplexFactory.Instance.SpringRestLengthFactor = 0.1f;
_chainSpring2 = ComplexFactory.Instance.CreateChain(PhysicsSimulator, new Vector2(650, 100), new Vector2(600, 600), 20.0f, 10.0f, 40.0f, 1, true, false, LinkType.LinearSpring);
_chainSpring2.CreateGeoms(PhysicsSimulator, 5);
base.LoadContent();
}
