#ifndef _simulation_h_
#define _simulation_h_

typedef struct {
	float x, y, xVel, yVel;
	int r, g, b;
	float a;
	float angle;
} Particle;

void Sim_Init(int width, int height, int radius, int dt);
void Sim_Quit(void);
void Sim_Resize(int width, int height);
void Sim_Randomize(Particle *particles, int count);
int Sim_Update(Particle *particles, int count, double deltaTime);
void Sim_UpdateDrag(int x, int y);
void Sim_BeginDrag(Particle *particles, int count, int x, int y);
void Sim_EndDrag(void);

#endif