コード例 #1
0
        public override Object PlacePhysicsObject(Microsoft.Xna.Framework.Vector2 position, FarseerPhysics.Dynamics.World world)
        {
            List <Fixture> list = world.TestPointAll(position);


            if (pin.Checked && list.Count > 0)
            {
                FixedRevoluteJoint j = new FixedRevoluteJoint(list[0].Body, list[0].Body.GetLocalPoint(position), position);
                if (motorEnabled.Checked)
                {
                    j.MotorEnabled = true;
                    float speed;
                    float maxTorque;
                    if (float.TryParse(motorSpeed.Text, out speed))
                    {
                        j.MotorSpeed = speed;
                    }
                    if (float.TryParse(motorTorque.Text, out maxTorque))
                    {
                        j.MaxMotorTorque = maxTorque;
                    }
                }

                world.AddJoint(j);
                return(j);
            }

            if (list.Count > 1)
            {
                RevoluteJoint j = new RevoluteJoint(list[0].Body, list[1].Body, list[0].Body.GetLocalPoint(position), list[1].Body.GetLocalPoint(position));
                if (motorEnabled.Checked)
                {
                    j.MotorEnabled = true;
                    float speed;
                    float maxTorque;
                    if (float.TryParse(motorSpeed.Text, out speed))
                    {
                        j.MotorSpeed = speed;
                    }
                    if (float.TryParse(motorTorque.Text, out maxTorque))
                    {
                        j.MaxMotorTorque = maxTorque;
                    }
                }
                world.AddJoint(j);
                return(j);
            }

            return(base.PlacePhysicsObject(position, world));
        }