nuclear@0: #ifndef CLOTH_H_
nuclear@0: #define CLOTH_H_
nuclear@0: 
nuclear@0: #include <vector>
nuclear@0: #include <gmath/gmath.h>
nuclear@0: #include "object.h"
nuclear@0: 
nuclear@0: using namespace gph;
nuclear@0: 
nuclear@0: struct ClothMass {
nuclear@0: 	Vector3 pos, vel;
nuclear@0: 	bool fixed;
nuclear@0: };
nuclear@0: 
nuclear@0: class Cloth {
nuclear@0: private:
nuclear@0: 	float mass, elast;	// global mass attributes
nuclear@0: 	float spring_k;		// spring constant for all springs
nuclear@0: 	Vector3 grav, forces;
nuclear@0: 
nuclear@0: 	std::vector<ClothMass> masses;
nuclear@0: 	std::vector<std::vector<float> > conn;	// spring lengths, <0 means not connected
nuclear@0: 
nuclear@0: 	std::vector<Object*> colliders;
nuclear@0: 
nuclear@0: 	bool find_collision(const Ray &ray, HitPoint *hit) const;
nuclear@0: 
nuclear@0: public:
nuclear@0: 	Cloth();
nuclear@0: 
nuclear@0: 	void create_rect(int x, int y, float width, float height);
nuclear@0: 
nuclear@0: 	void transform(const Matrix4x4 &xform);
nuclear@0: 
nuclear@0: 	void add_collider(Object *o);
nuclear@0: 
nuclear@0: 	void step(float dt);
nuclear@0: 
nuclear@0: 	void draw() const;
nuclear@0: };
nuclear@0: 
nuclear@0: #endif	// CLOTH_H_