我正在开发一个用户必须击中高速球的游戏。为了击球,我使用旋转关节连接了一个矩形体和演员,并启用了它的电机,以指定的速度(电机速度)旋转它。现在一切都很完美,但有时当球的速度很高时,它会绕过矩形体。使用碰撞侦听器,我发现正在发生碰撞,但球在碰撞后没有被反射。由于这种情况仅在球处于高速状态时才会发生,因此是否与碰撞的物体密度有关。还是负责它的旋转接头电机?我在这里错过了什么吗?
这是两个机构的代码
// 矩形体的方法
public Body createRectangleBodyPart(float x, float y, float width,
float height, short groupIndex) {
PolygonShape shape = new PolygonShape();
shape.setAsBox(width*WORLD_TO_BOX, height*WORLD_TO_BOX);
MassData massData = new MassData();
massData.mass = 15;
BodyDef bodyDef = new BodyDef();
bodyDef.type = BodyType.KinematicBody;
bodyDef.position.y = y*WORLD_TO_BOX;
bodyDef.position.x = x*WORLD_TO_BOX;
body = world.createBody(bodyDef);
body.setMassData(massData);
FixtureDef fixtureDef = new FixtureDef();
fixtureDef.shape = shape;
fixtureDef.density = 1;
fixtureDef.friction = 100f;
fixtureDef.restitution = 0.5f;
fixtureDef.filter.groupIndex=groupIndex;
body.createFixture(fixtureDef);
shape.dispose();
return body;
}
// 球体方法
public Body createRoundBodyPart2(float x, float y, float radius,
short groupIndex, float density, int mass) {
CircleShape shape = new CircleShape();
shape.setPosition(new Vector2(0, 0));
shape.setRadius(radius*WORLD_TO_BOX ); // *18
BodyDef bodyDef = new BodyDef();
bodyDef.type = BodyType.DynamicBody;
bodyDef.position.y = y*WORLD_TO_BOX;
bodyDef.position.x = x*WORLD_TO_BOX;
MassData massData = new MassData();
massData.mass = 8;
Body body = world.createBody(bodyDef);
body.setMassData(massData);
FixtureDef fixtureDef = new FixtureDef();
fixtureDef.shape = shape;
fixtureDef.density = 0.5f;
fixtureDef.restitution=0.007f;
fixtureDef.filter.groupIndex = groupIndex;
body.createFixture(fixtureDef);
shape.dispose();
return body;
}