1 // SuperTux - BicyclePlatform
2 // Copyright (C) 2007 Christoph Sommer <christoph.sommer@2007.expires.deltadevelopment.de>
4 // This program is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation, either version 3 of the License, or
7 // (at your option) any later version.
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with this program. If not, see <http://www.gnu.org/licenses/>.
17 #ifndef HEADER_SUPERTUX_OBJECT_BICYCLE_PLATFORM_HPP
18 #define HEADER_SUPERTUX_OBJECT_BICYCLE_PLATFORM_HPP
20 #include "object/moving_sprite.hpp"
23 * Used to construct a pair of bicycle platforms: If one is pushed down, the other one rises
25 class BicyclePlatform : public MovingSprite
28 BicyclePlatform(const Reader& reader);
29 BicyclePlatform(BicyclePlatform* master);
30 virtual ~BicyclePlatform();
32 virtual HitResponse collision(GameObject& other, const CollisionHit& hit);
33 virtual void update(float elapsed_time);
36 BicyclePlatform* master; /**< pointer to BicyclePlatform that does movement calculation */
37 BicyclePlatform* slave; /**< pointer to BicyclePlatform that reacts to master platform's movement calculation */
38 Vector center; /**< pivot point */
39 float radius; /**< radius of circle */
40 float angle; /**< current angle */
41 float angular_speed; /**< angular speed in rad per second */
42 std::set<GameObject*> contacts; /**< objects that are currently pushing on the platform */
43 float momentum; /** angular momentum in rad per second per second*/
46 BicyclePlatform(const BicyclePlatform&);
47 BicyclePlatform& operator=(const BicyclePlatform&);