private LineJointTest()
{
Body ground;
{
PolygonShape shape = new PolygonShape(PolygonTools.CreateEdge(new Vector2(-40.0f, 0.0f), new Vector2(40.0f, 0.0f)), 0);
ground = World.CreateBody();
ground.CreateFixture(shape);
}
{
PolygonShape shape = new PolygonShape(PolygonTools.CreateRectangle(0.5f, 2.0f), 1);
Body body = World.CreateBody();
body.BodyType = BodyType.Dynamic;
body.Position = new Vector2(0.0f, 7.0f);
body.CreateFixture(shape);
Vector2 axis = new Vector2(2.0f, 1.0f);
axis.Normalize();
//LineJoint jd = new LineJoint(ground, body, new Vector2(0.0f, 8.5f),new Vector2(1.0f, 2.5f), axis);
FixedLineJoint jd = new FixedLineJoint(body, /*ground, */ new Vector2(1.0f, 1.5f), new Vector2(10.0f, 8.5f), axis);
jd.MotorSpeed = 100.0f;
jd.MaxMotorForce = 100.0f;
jd.MotorEnabled = false;
jd.LowerLimit = -4.0f;
jd.UpperLimit = 4.0f;
jd.EnableLimit = true;
World.CreateJoint(jd);
_jd = jd;
}
}
public static Fixture CreateEdge(World world, Vector2 start, Vector2 end, float density)
{
Body body = BodyFactory.CreateBody(world);
Vertices edgeVertices = PolygonTools.CreateEdge(start, end);
PolygonShape rectangleShape = new PolygonShape(edgeVertices);
return(body.CreateFixture(rectangleShape, density));
}
public ConvexDecompositionTest()
{
{
Body ground = World.CreateBody();
Vertices edge = PolygonTools.CreateEdge(new Vector2(-40.0f, 0.0f), new Vector2(40.0f, 0.0f));
PolygonShape shape = new PolygonShape(edge, 0);
ground.CreateFixture(shape);
}
}
// Contributed by Matthew Bettcher
/// <summary>
/// Convert a path into a set of edges and attaches them to the specified body.
/// Note: use only for static edges.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="body">The body.</param>
/// <param name="subdivisions">The subdivisions.</param>
public static void ConvertPathToEdges(Path path, Body body, int subdivisions)
{
List <Vector2> verts = path.GetVertices(subdivisions);
for (int i = 1; i < verts.Count; i++)
{
body.CreateFixture(new PolygonShape(PolygonTools.CreateEdge(verts[i], verts[i - 1])), 0);
}
if (path.Closed)
{
body.CreateFixture(new PolygonShape(PolygonTools.CreateEdge(verts[verts.Count - 1], verts[0])), 0);
}
}
private BuoyancyTest()
{
//Make a box
//Bottom
Body ground = BodyFactory.CreateBody(World);
Vertices edge = PolygonTools.CreateEdge(new Vector2(0.0f, 0.0f), new Vector2(40.0f, 0.0f));
PolygonShape shape = new PolygonShape(edge);
ground.CreateFixture(shape);
//Left side
shape.Set(PolygonTools.CreateEdge(new Vector2(0.0f, 0.0f), new Vector2(00.0f, 15.0f)));
ground.CreateFixture(shape);
//Right side
shape.Set(PolygonTools.CreateEdge(new Vector2(40.0f, 0.0f), new Vector2(40.0f, 15.0f)));
ground.CreateFixture(shape);
//Buoyancy controller
_aabbContainer = new AABBFluidContainer(new Vector2(0, 0), 40, 10);
_waveContainer = new WaveContainer(new Vector2(0, 0), 40, 10);
_waveContainer.WaveGeneratorStep = 0;
FluidDragController buoyancyController = new FluidDragController(_waveContainer, 4f, 0.98f, 0.2f,
World.Gravity);
buoyancyController.Entry += EntryEventHandler;
Vector2 offset = new Vector2(5, 0);
//Bunch of balls
for (int i = 0; i < 4; i++)
{
Fixture fixture = FixtureFactory.CreateCircle(World, 1, 1, new Vector2(15, 1) + offset * i);
fixture.Body.BodyType = BodyType.Dynamic;
buoyancyController.AddGeom(fixture);
}
World.Add(buoyancyController);
}
/// <summary>
/// Set this as a single edge.
/// </summary>
/// <param name="start">The start.</param>
/// <param name="end">The end.</param>
public void SetAsEdge(Vector2 start, Vector2 end)
{
Set(PolygonTools.CreateEdge(start, end));
}