1 | // SuperTux - BicyclePlatform |
2 | // Copyright (C) 2007 Christoph Sommer <christoph.sommer@2007.expires.deltadevelopment.de> |
3 | // |
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. |
8 | // |
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. |
13 | // |
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/>. |
16 | |
17 | #ifndef HEADER_SUPERTUX_OBJECT_BICYCLE_PLATFORM_HPP |
18 | #define |
19 | |
20 | #include "object/path_walker.hpp" |
21 | #include "object/moving_sprite.hpp" |
22 | |
23 | class BicyclePlatform; |
24 | |
25 | class BicyclePlatformChild : public MovingSprite |
26 | { |
27 | friend class BicyclePlatform; |
28 | |
29 | public: |
30 | BicyclePlatformChild(const ReaderMapping& reader, float angle_offset, BicyclePlatform& parent); |
31 | |
32 | virtual void update(float dt_sec) override; |
33 | virtual HitResponse collision(GameObject& other, const CollisionHit& hit) override; |
34 | virtual bool is_saveable() const override { return false; } |
35 | |
36 | virtual void editor_delete() override; |
37 | |
38 | private: |
39 | BicyclePlatform& m_parent; |
40 | float m_angle_offset; |
41 | float m_momentum; /** angular momentum in rad per second per second*/ |
42 | std::set<GameObject*> m_contacts; /**< objects that are currently pushing on the platform */ |
43 | |
44 | private: |
45 | BicyclePlatformChild(const BicyclePlatformChild&) = delete; |
46 | BicyclePlatformChild& operator=(const BicyclePlatformChild&) = delete; |
47 | }; |
48 | |
49 | /** |
50 | * Used to construct a pair of bicycle platforms: If one is pushed down, the other one rises |
51 | */ |
52 | class BicyclePlatform final : public GameObject |
53 | { |
54 | friend class BicyclePlatformChild; |
55 | |
56 | public: |
57 | BicyclePlatform(const ReaderMapping& reader); |
58 | virtual ~BicyclePlatform(); |
59 | |
60 | virtual void draw(DrawingContext& context) override; |
61 | virtual void update(float dt_sec) override; |
62 | |
63 | virtual std::string get_class() const override { return "bicycle-platform" ; } |
64 | virtual std::string get_display_name() const override { return _("Bicycle Platform" ); } |
65 | |
66 | virtual ObjectSettings get_settings() override; |
67 | virtual void editor_delete() override; |
68 | virtual void after_editor_set() override; |
69 | |
70 | private: |
71 | Vector m_center; /**< pivot point */ |
72 | float m_radius; /**< radius of circle */ |
73 | |
74 | float m_angle; /**< current angle */ |
75 | float m_angular_speed; /**< angular speed in rad per second */ |
76 | |
77 | float m_momentum_change_rate; /** Change in momentum every step **/ |
78 | |
79 | std::vector<BicyclePlatformChild*> m_children; |
80 | std::unique_ptr<PathWalker> m_walker; |
81 | int m_platforms; |
82 | |
83 | private: |
84 | BicyclePlatform(const BicyclePlatform&) = delete; |
85 | BicyclePlatform& operator=(const BicyclePlatform&) = delete; |
86 | }; |
87 | |
88 | #endif |
89 | |
90 | /* EOF */ |
91 | |