bullet.h

#ifndef BULLET_H
#define BULLET_H

#include <math.h>
#include <SDL.h>
#include <SDL_image.h>

#include "graphic.h"

typedef enum
{
  minus_blue,
  minus_black,
  minus_red,
  minus_big_brown,
  
  ball_blue,
  ball_black,
  ball_red,
  
  blue_one,
  blue_zero,
  
  red_one,
  red_zero,
  
  plus_red,
  plus_big_brown,
  
  bullet_z,
  
  greycode,
  venn_elipse,
  
  dot_black,
  dot_blue,
  
  e_blue,
  
  BULLET_TYPE_MAX
}bullet_type;

typedef enum
{
  player_team,
  enemy_team
}bullet_team;

typedef struct enemy enemy;
typedef struct bullet bullet;
struct bullet
{
  bullet_type type;
  bullet_team team;
  
  /* needed to prevent collision between enemy and his own bullet */
  enemy *shot_by;
  
  double x, y;
  double dir_x, dir_y;
  
  int splitter;
  
  double speed;
  Uint32 last_move;
  
  int power;
  
  bullet *next;
  bullet *prev;
};

extern int init_bullet(void);

extern bullet *new_bullet(const bullet_team team, const bullet_type type, enemy *shot_by, const double x, const double y,
                          const double dir_x, const double dir_y, const int splitter, const double speed, const int power);
extern void free_bullet(bullet *object);
extern bullet *get_first_bullet(void);
extern int get_bullet_w(const bullet_type type);
extern int get_bullet_h(const bullet_type type);

extern void move_all_bullets(void);
extern void blit_all_bullets(SDL_Surface *dst);
extern void extend_all_bullets_timestamp(const Uint32 time);
extern void free_all_bullets(void);

extern void splitter_bullet(const bullet *blt, enemy *shot_by, const double x, const double y, const int w, const int h, const int amount);

#endif