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1 | /* |
2 | * Copyright (C) 2008 Patrik Gornicz, Gornicz_P (at) hotmail (dot) com. | |
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 | ||
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18 | #ifndef VECTOR2_H |
19 | #define VECTOR2_H | |
20 | ||
21 | #include <string> | |
22 | ||
23 | using std::string; | |
24 | ||
25 | /// ***** Header Class ***** | |
26 | class Vector2 | |
27 | { | |
28 | public: | |
29 | float x; | |
30 | float y; | |
31 | ||
32 | Vector2(); | |
33 | Vector2(float, float); | |
34 | Vector2(const Vector2&); | |
617dcc71 | 35 | ~Vector2(); |
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36 | |
37 | void zero(); | |
38 | void unit(); | |
39 | ||
40 | float angle() const; | |
41 | float length() const; | |
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42 | float sqrLength() const; |
43 | ||
44 | float dot(const Vector2&) const; | |
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45 | |
46 | Vector2 add(const Vector2&) const; | |
47 | Vector2 subtract(const Vector2&) const; | |
48 | Vector2 divide(float) const; | |
49 | Vector2 multiply(float) const; | |
50 | ||
51 | string toString() const; | |
52 | void print() const; | |
53 | }; | |
54 | ||
55 | /// ***** Header Methods ***** | |
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56 | |
57 | // definitions of the operators are external because (float, Vector2) would | |
58 | // fail inside the class | |
59 | ||
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60 | Vector2 operator+(const Vector2&, const Vector2&); |
61 | Vector2 operator-(const Vector2&, const Vector2&); | |
62 | Vector2 operator*(float, const Vector2&); | |
63 | Vector2 operator*(const Vector2&, float); | |
64 | Vector2 operator/(const Vector2&, float); | |
65 | ||
66 | void operator+=(Vector2&, const Vector2&); | |
67 | void operator-=(Vector2&, const Vector2&); | |
68 | void operator*=(Vector2&, float); | |
69 | void operator/=(Vector2&, float); | |
70 | ||
71 | #endif // VECTOR2_H |