public void TestExcuteParticleCollisionDetector()
{
var pA = new Particle {
Mass = 1, Position = new Vector2D(0, 0)
};
var pB = new Particle {
Mass = 1, Position = new Vector2D(2, 0)
};
pA.BindShape(new Circle(5));
pB.BindShape(new Circle(5));
var objects = new HashSet <PhysicsObject> {
pA, pB
};
var edge = new Edge(0, 4, 4, 4);
var edges = new HashSet <Edge> {
edge
};
var shapes = ContactRegistry.CollectAllShapes(objects, edges);
var contacts = ContactRegistry.ExcuteParticleCollisionDetector(shapes);
var count = 0;
foreach (var contact in contacts)
{
count++;
}
Assert.AreEqual(3, count, "应当产生三个碰撞");
shapes = new List <Shape> {
edge, pA.Shape, pB.Shape
};
contacts = ContactRegistry.ExcuteParticleCollisionDetector(shapes);
count = 0;
foreach (var contact in contacts)
{
count++;
}
Assert.AreEqual(3, count, "形状列表的次序不影响结果");
pA.BindShape(new Circle(5, 1));
pB.BindShape(new Circle(5, 1));
shapes = new List <Shape> {
pA.Shape, edge, pB.Shape
};
contacts = ContactRegistry.ExcuteParticleCollisionDetector(shapes);
count = 0;
foreach (var contact in contacts)
{
count++;
}
Assert.AreEqual(2, count, "形状标识符一致的物体不执行碰撞检测");
}
public void TestCollectAllShapes()
{
var pA = new Particle {
Mass = 1, Position = new Vector2D(0, 0)
};
var pB = new Particle {
Mass = 1, Position = new Vector2D(2, 0)
};
pA.BindShape(new Circle(5));
pB.BindShape(new Point());
var objects = new HashSet <PhysicsObject> {
pA, pB
};
var edges = new HashSet <Edge> {
new Edge(0, 4, 4, 4)
};
var shapes = ContactRegistry.CollectAllShapes(objects, edges);
Assert.AreEqual(2, shapes.Count);
}
