1 #ifndef VMATH_H_

2 #define VMATH_H_

3

4 class Vector2 {

5 public:

6 float x, y;

7

8 Vector2() : x(0), y(0) {}

9 Vector2(float xa, float ya) : x(xa), y(ya) {}

10

11 float &operator [](int idx) { return (&x)[idx]; }

12 const float &operator [](int idx) const { return (&x)[idx]; }

13 };

14

15 class Vector3 {

16 public:

17 float x, y, z;

18

19 Vector3() : x(0), y(0), z(0) {}

20 Vector3(float xa, float ya, float za) : x(xa), y(ya), z(za) {}

21

22 float &operator [](int idx) { return (&x)[idx]; }

23 const float &operator [](int idx) const { return (&x)[idx]; }

24 };

25

26 class Vector4 {

27 public:

28 float x, y, z, w;

29

30 Vector4() : x(0), y(0), z(0), w(0) {}

31 Vector4(float xa, float ya, float za, float wa) : x(xa), y(ya), z(za), w(wa) {}

32

33 float &operator [](int idx) { return (&x)[idx]; }

34 const float &operator [](int idx) const { return (&x)[idx]; }

35 };

36

37 #endif // VMATH_H_