1 #ifndef CLOTH_H_

2 #define CLOTH_H_

3

4 #include <vector>

5 #include <gmath/gmath.h>

6 #include "object.h"

7

8 using namespace gph;

9

10 struct ClothMass {

11 Vector3 pos, vel;

12 bool fixed;

13 };

14

15 class Cloth {

16 private:

17 float mass, elast; // global mass attributes

18 float spring_k; // spring constant for all springs

19 float damping;

20 Vector3 grav, forces;

21

22 std::vector<ClothMass> masses;

23 std::vector<std::vector<float> > conn; // spring lengths, <0 means not connected

24

25 std::vector<Object*> colliders;

26

27 bool find_collision(const Ray &ray, HitPoint *hit) const;

28

29 public:

30 Cloth();

31

32 void create_rect(int x, int y, float width, float height);

33

34 void set_mass(float m);

35 void set_elasticity(float e);

36 void set_spring_constant(float k);

37 void set_damping(float d);

38 void set_gravity(const Vector3 &g);

39 void set_force(const Vector3 &f);

40

41 void transform(const Matrix4x4 &xform);

42

43 void add_collider(Object *o);

44

45 void step(float dt);

46

47 void draw() const;

48 };

49

50 #endif // CLOTH_H_