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我尝试将Box2D集成到我的WP7游戏中。然而,我补充说的这些尸体并没有像预期的那样对重力做出反应。基本上,无论我修改的属性如何,我添加的对象似乎都很“轻”,并且实际上并不会对重力变化做出响应。Box2d.XNA重力问题
下面是代码:
void Init
{
world = new World(new Vector2(0, 100), false);
world.ContinuousPhysics = true;
// add ground
BodyDef bd = new BodyDef();
Body ground = world.CreateBody(bd);
PolygonShape shape = new PolygonShape();
shape.SetAsEdge(new Vector2(0.0f, bbheight), new Vector2(bbwidth, bbheight));
ground.CreateFixture(shape, 0.0f);
AddObject(new Vector2(450,0));
}
private void AddObject(Vector2 position)
{
float PTM = 32;
Vector2 pos = new Vector2(position.X/PTM, position.Y/PTM);
var circle = new CircleShape();
circle._radius = 1.0f;
var fd = new FixtureDef();
fd.shape = circle;
fd.restitution = 0.5f;
fd.friction = 1.0f;
fd.density = 1000.0f;
BodyDef bd = new BodyDef();
bd.type = BodyType.Dynamic;
bd.fixedRotation = true;
bd.allowSleep = false;
bd.position = pos;
var body = world.CreateBody(bd);
body.CreateFixture(fd);
body.SetUserData(Red);
}
我将不胜感激,如果你能给予一定的帮助。 谢谢!
你的重力应该是向上吗? (0,100) – iforce2d