private void CreateWalls()
{
var wallCoff = new Coefficients(0.8f, 0.95f);
var wallLife = new Lifespan();
var flrState = new PhysicsState(new ALVector2D((float)0.0, ((float)ActualWidth) * ((float)0.5), (float)ActualHeight + 100.0));
var flrShape = new PolygonShape(VertexHelper.CreateRectangle(ActualWidth, 200), 2);
var bdyFloor = new Body(flrState, flrShape, float.PositiveInfinity, wallCoff, wallLife);
var ceiState = new PhysicsState(new ALVector2D((float)0.0, ((float)ActualWidth) * ((float)0.5), -100.0));
var ceiShape = new PolygonShape(VertexHelper.CreateRectangle(ActualWidth, 200), 2);
var bdyCeiling = new Body(ceiState, ceiShape, float.PositiveInfinity, wallCoff, wallLife);
var lwlState = new PhysicsState(new ALVector2D((float)0.0, -100.0, ((float)ActualHeight) * ((float)0.5)));
var lwlShape = new PolygonShape(VertexHelper.CreateRectangle(200, ActualHeight), 2);
var bdyLeftWall = new Body(lwlState, lwlShape, float.PositiveInfinity, wallCoff, wallLife);
var rwlState = new PhysicsState(new ALVector2D((float)0.0, (float)ActualWidth + 100.0, ((float)ActualHeight) * ((float)0.5)));
var rwlShape = new PolygonShape(VertexHelper.CreateRectangle(200, ActualHeight), 2);
var bdyRightWall = new Body(rwlState, rwlShape, float.PositiveInfinity, wallCoff, wallLife);
engine.AddBody(bdyFloor);
engine.AddBody(bdyCeiling);
engine.AddBody(bdyLeftWall);
engine.AddBody(bdyRightWall);
}
public World()
{
float w, h;
w = 640.0f; h = 480.0f;
bodyList = new List <Body>();
engine = new PhysicsEngine();
engine.BroadPhase = new Physics2DDotNet.Detectors.BruteForceDetector();
engine.Solver = new Physics2DDotNet.Solvers.SequentialImpulsesSolver();
engine.AddLogic(new GravityField(new Vector2D(0, 500), new Lifespan()));
Coefficients coffecients = new Coefficients(.8f, .5f);
Shape floor = new Polygon(Polygon.CreateRectangle(100.0f, w), 2.0f);
Shape left = new Polygon(Polygon.CreateRectangle(h, 100.0f), 2.0f);
Shape right = new Polygon(Polygon.CreateRectangle(h, 100.0f), 2.0f);
Physics2DDotNet.Body floorData = new Physics2DDotNet.Body(new PhysicsState(new ALVector2D(0.0f, w / 2.0f, h + 50.0f)), floor, new MassInfo(Scalar.PositiveInfinity, Scalar.PositiveInfinity), coffecients, new Lifespan());
Physics2DDotNet.Body leftData = new Physics2DDotNet.Body(new PhysicsState(new ALVector2D(0.0f, -50.0f, h / 2.0f)), left, new MassInfo(Scalar.PositiveInfinity, Scalar.PositiveInfinity), coffecients, new Lifespan());
Physics2DDotNet.Body rightData = new Physics2DDotNet.Body(new PhysicsState(new ALVector2D(0.0f, w + 50.0f, h / 2.0f)), right, new MassInfo(Scalar.PositiveInfinity, Scalar.PositiveInfinity), coffecients, new Lifespan());
floorData.IgnoresGravity = true;
leftData.IgnoresGravity = true;
rightData.IgnoresGravity = true;
engine.AddBody(floorData);
engine.AddBody(leftData);
engine.AddBody(rightData);
}
/// <summary>
/// Called when the <see cref="P:System.Windows.Controls.ContentControl.Content"/> property changes.
/// </summary>
/// <param name="oldContent">The old value of the <see cref="P:System.Windows.Controls.ContentControl.Content"/> property.</param>
/// <param name="newContent">The new value of the <see cref="P:System.Windows.Controls.ContentControl.Content"/> property.</param>
protected override void OnContentChanged(object oldContent, object newContent)
{
timer.IsRunning = false;
if (Body != null)
{
Body.Lifetime.IsExpired = true;
}
base.OnContentChanged(oldContent, newContent);
PhysicsState state = new PhysicsState(new ALVector2D(0, 0, 0));
IShape shape = new PolygonShape(VertexHelper.CreateRectangle(5, 5), 1);
MassInfo mass = MassInfo.FromPolygon(shape.Vertexes, 1);
Body = new Body(state, shape, mass, new Coefficients(0, 1), new Lifespan());
Body.LinearDamping = LinearDumping;
Body.Mass.MomentOfInertia = double.PositiveInfinity;
Body.Tag = newContent;
engine.AddBody(Body);
if (!DesignerProperties.GetIsInDesignMode(this))
{
timer.IsRunning = true;
}
}
void CreateBody(Window window)
{
lock (lockPhysicsLoop)
{
double angle = window.Angle;
Rectangle position = window.Position;
if (position.Width > 0 && position.Height > 0)
{
PhysicsState state = new PhysicsState(new ALVector2D(angle, position.Left + position.Width / 2, position.Top + position.Height / 2));
IShape shape = new PolygonShape(VertexHelper.CreateRectangle(position.Height, position.Width), 2);
MassInfo mass = MassInfo.FromPolygon(shape.Vertexes, 1);
Body body = new Body(state, shape, mass, new Coefficients(0, 1), new Lifespan());
body.LinearDamping = 0.95;
body.AngularDamping = 0.95;
body.IsCollidable = false;
body.Tag = window;
engine.AddBody(body);
windowToBody.Add(window, body);
try
{
dwm.SetWindowMatrix(window.HWnd.ToInt32(), 0f, 0f, 1f, 1f, 0f);
}
catch (Exception e)
{
HandleDwmCrash(e);
}
}
}
}
public void AddBody(IPhysicsBody body)
{
if (!(body is PhysicsBody))
{
throw new ArgumentException("This body does not belong to this physics engine.");
}
Body b = ((PhysicsBody)body).Body;
if (b.Engine != null)
{
return;
}
b.Lifetime.IsExpired = false;
phsEngine.AddBody(b);
}
public void AddBody(Body body)
{
bodyList.Add(body);
engine.AddBody(body.Data);
}
static void Main(string[] args)
{
GroupCollection collection1 = new GroupCollection();
GroupCollection collection2 = new GroupCollection();
/* collection1.AddRange(new int[] { 1 });
* collection1.AddRange(new int[] { 3 });
* collection1.AddRange(new int[] { 2 });*/
collection1.Add(1);
collection1.Add(3);
collection1.Add(2);
collection2.Add(1);
Console.WriteLine(GroupCollection.Intersect(collection1, collection2));
Console.ReadLine();
return;
PhysicsEngine engine = new PhysicsEngine();
engine.BroadPhase = new Physics2DDotNet.Detectors.SelectiveSweepDetector();
engine.Solver = new Physics2DDotNet.Solvers.SequentialImpulsesSolver();
PhysicsTimer timer = new PhysicsTimer(engine.Update, .01f);
timer.IsRunning = true;
Coefficients coffecients = new Coefficients(/*restitution*/ 1, /*friction*/ .5f);
IShape shape1 = new CircleShape(8, 7);
IShape shape2 = new PolygonShape(VertexHelper.CreateRectangle(20, 10), 3);
Scalar mass = 5;
Body body1 = new Body(new PhysicsState(), shape1, mass, coffecients, new Lifespan());
Body body2 = new Body(new PhysicsState(), shape2, mass, coffecients, new Lifespan());
engine.AddBody(body1);
engine.AddBody(body2);
Joint joint = new HingeJoint(body1, body2, Vector2D.Zero, new Lifespan());
engine.AddJoint(joint);
joint.Lifetime.IsExpired = true;
engine.AddJoint(new HingeJoint(body1, body2, Vector2D.Zero, new Lifespan()));
engine.Update(0, 0);
body1.Lifetime.IsExpired = true;
timer.IsRunning = false;
engine.AddProxy(body1, body2, Matrix2x2.Identity);
// b1.RemoveFromProxy();
BinaryFormatter formatter = new BinaryFormatter();
MemoryStream stream = new MemoryStream();
formatter.Serialize(stream, engine);
stream.Seek(0, SeekOrigin.Begin);
PhysicsEngine engine2 = (PhysicsEngine)formatter.Deserialize(stream);
Console.WriteLine();
/*
*
* Vector2D[] vertexes1 = new Vector2D[]
* {
* new Vector2D(-1,1),
* new Vector2D(-3,1),
* new Vector2D(-3,-1),
* new Vector2D(-1,-1),
* };
* Vector2D[] vertexes2 = new Vector2D[]
* {
* new Vector2D(1,-1),
* new Vector2D(3,-1),
* new Vector2D(3,1),
* new Vector2D(1,1),
* };
* Vector2D[][] polygons = new Vector2D[2][];
* polygons[0] = vertexes1;
* polygons[1] = vertexes2;
* Console.WriteLine(MultiPartPolygon.GetCentroid(polygons));
* Console.WriteLine(MultiPartPolygon.GetArea(polygons));
*/
Console.WriteLine("Finished");
Console.ReadLine();
}
/// <summary>
/// Adds the body into internal dictionary and underlying physical engine
/// </summary>
/// <param name="body">The Body which value will be copied</param>
public void AddBody(Body body)
{
_engine.AddBody(body);
}