public ContactDemo(Image image)
: base(image)
{
Settings.ContactIteration = 1;
const int num = 5;
for (int i = 0; i < num; i++)
{
var fB = PhysicsWorld.CreateFixedParticle((new Vector2D(160 + 40 * i, 0)).ToSimUnits());
var pB = PhysicsWorld.CreateParticle((new Vector2D(160 + 40 * i, 200)).ToSimUnits(), new Vector2D(0, 0), 2);
var ball = new Ball
{
FixedParticle = fB,
Particle = pB,
R = 20
};
// 为质体绑定形状
ball.Particle.BindShape(new Circle(ball.R.ToSimUnits()));
PhysicsWorld.CreateRope(200.ToSimUnits(), 0, fB, pB);
DrawQueue.Add(ball);
_ballList.Add(ball);
}
// 增加重力和空气阻力
PhysicsWorld.CreateGlobalZone(new ParticleGravity(new Vector2D(0, 40)));
PhysicsWorld.CreateParticle(Vector2D.Zero, new Vector2D(1, 0), 1);
Slot = 1 / 120.0;
Start = true;
}
public CircleDemo(Image image)
: base(image)
{
// 初始化中心点
_centerObj = PhysicsWorld.CreateFixedParticle
(
new Vector2D
(
250.ToSimUnits(),
200.ToSimUnits()
)
);
// 注册绘制对象
DrawQueue.Add(this);
}