public void TestTryApplyTo()
{
var p = new Particle
{
Mass = 1
};
var zone = new GlobalZone();
zone.Add(new ParticleConstantForce(new Vector2D(5, 0)));
zone.TryApplyTo(p, 1 / 60.0);
p.Update(1 / 60.0);
Assert.AreEqual(new Vector2D(5, 0), p.Acceleration);
}
public void TestUpdate()
{
var world = new World();
// 两种物体
var objA = new CombinedParticle(
new List <Vector2D> {
new Vector2D(0, 0),
new Vector2D(5, 0),
new Vector2D(0, 5)
});
var objB = new Particle {
Mass = 1, Position = Vector2D.Zero
};
// 一个全局作用力
var zone = new GlobalZone();
zone.Add(new ParticleGravity(new Vector2D(0, 9.8)));
world.Zones.Add(zone);
TestAddCustomObject(world, objA);
var handle = TestPin(world, objA);
TestUnPin(world, objA, handle);
TestRemoveCustomObject(world, objA);
// 一个作用力
var force = new ParticleConstantForce(new Vector2D(5, 0));
force.Add(objB);
world.ForceGenerators.Add(force);
TestAddObject(world, objB);
TestRemoveObject(world, objB);
}