1 //  Key.hpp -- A key the player has to collect.
2 //  Copyright (C) 2008  Nick Gasson
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 
18 #ifndef INC_KEY_HPP
19 #define INC_KEY_HPP
20 
21 #include "GameObjFwd.hpp"
22 #include "AnimatedImage.hpp"
23 #include "ObjectGrid.hpp"
24 
25 enum ArrowColour { acBlue, acRed, acYellow, acPink, acGreen };
26 
27 class Key : public StaticObject {
28 public:
29    Key(bool active, int xpos, int ypos, ArrowColour acol);
30 
31    void DrawKey(Viewport* viewport);
32    void DrawArrow(Viewport* viewport) const;
33    void DrawIcon(int offset, float minAlpha) const;
34    bool CheckCollision(Ship& ship) const;
35 
Collected()36    void Collected() { active = false; }
37 
38 private:
39    static const int KEY_FRAMES = 18;
40    static const int KEY_ROTATION_SPEED = 2;
41    static const int ARROW_SIZE = 32;
42 
43    int rotcount;
44    float alpha;
45    bool active;
46    AnimatedImage image;
47    Image arrow;
48 
49    static string KeyFileName(ArrowColour col);
50    static string ArrowFileName(ArrowColour col);
51 };
52 
53 #endif
54