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);
}
}
public void dettachPlayer()
{
if (attachedPlayer!=null)
{
attachedPlayer = null; //sets to null if player is not null
}
platformJoint.Dispose();
platformJoint = null; //gets rid of the joint
}
//the player that will be attatched
public void attachPlayer(Player p)
{
if (platformJoint == null)
{
attachedPlayer = p; //creates a revolute joint between the platform and player body at the platforms position
platformJoint = JointFactory.Instance.CreateRevoluteJoint(body, p.Body, body.Position);
sim.Add(platformJoint);
platformJoint.Broke += new EventHandler<EventArgs>(platformJoint_Broke);//fires platformJOint_broke event handler
}
}
float speed; //the speed of the movingplatform
#endregion Fields
#region Constructors
public MovingPlatform()
: base()
{
Coordinates = new Vector2[10]; //the array of coordinates. movingplatforms can have up to 10 coordinates
int i = 0;
foreach (Vector2 v in Coordinates) //default all coordiantes to 1,1
{
Coordinates.SetValue(new Vector2(1, 1), i);
i++;
}
speed = 4.5f; //this is the movingplatforms speed
platformJoint = null; // platformJoint defaulted To null
}
void platformJoint_Broke(object sender, EventArgs e)
{
//destroys the join and sets it to null
sim.Remove(platformJoint);
platformJoint.Dispose();
platformJoint = null;
}
public RevoluteJoint CreateRevoluteJoint(Body body1, Body body2, Vector2 initialAnchorPosition)
{
RevoluteJoint revoluteJoint = new RevoluteJoint(body1, body2, initialAnchorPosition);
return revoluteJoint;
}
/// <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);
}
protected void mouseHandle()
{
mouseStateCurrent = Mouse.GetState();
for (int i = 3; i > 0; i--)
mPoint[i] = mPoint[i - 1];
mPoint[0] = new Vector2(mouseStateCurrent.X + camera.Position.X - 512, mouseStateCurrent.Y + camera.Position.Y - 381);
mouseBody.Position = mPoint[0];
if (staticBetween(heros.hBody.Position, mPoint[0]))
mouseColor = Color.Red;
else
mouseColor = Color.Blue;
if (mouseStatePrevious.LeftButton == ButtonState.Released && mouseStateCurrent.LeftButton == ButtonState.Pressed && !staticBetween(heros.hBody.Position, mPoint[0]))
{
picked = physicsSimulator.Collide(mPoint[0]);
if (picked != null && picked != heros.hGeom)
{
if (!picked.Body.IsStatic & picked.CollisionGroup == 1)
{
mouseJoint = JointFactory.Instance.CreateRevoluteJoint(physicsSimulator, mouseBody, picked.Body, mPoint[0]);
picked.Body.RotationalDragCoefficient = 500f;
}
if (!picked.Body.IsStatic & picked.CollisionGroup != 1)
mouseSpring = SpringFactory.Instance.CreateFixedLinearSpring(physicsSimulator, picked.Body, picked.Body.GetLocalPosition(mPoint[0]), mPoint[0], 200, 20);
}
}
else if ((mouseStatePrevious.LeftButton == ButtonState.Pressed && mouseStateCurrent.LeftButton == ButtonState.Released) | staticBetween(heros.hBody.Position, mPoint[0]))
{
if (mouseJoint != null && mouseJoint.IsDisposed == false)
{
mouseJoint.Dispose();
mouseJoint = null;
picked.Body.RotationalDragCoefficient = 0.001f;
picked = null;
}
if (mouseSpring != null && mouseSpring.IsDisposed == false)
{
mouseSpring.Dispose();
mouseSpring = null;
picked = null;
}
}
if (mouseStateCurrent.LeftButton == ButtonState.Pressed && mouseSpring != null)
mouseSpring.WorldAttachPoint = mPoint[0];
mouseStatePrevious = mouseStateCurrent;
}
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);
}
}
