badge/jumpnrun/enemies.h

   1 #ifndef INCLUDED_JUMPNRUN_ENEMIES_H
   2 #define INCLUDED_JUMPNRUN_ENEMIES_H
   3
   4 #include "../ui/sprite.h"
   5 #include "../util/rectangle.h"
   6
   7 #include "moveable.h"
   8 #include "tiles.h"
   9
  10 struct jumpnrun_game_state;
  11 struct jumpnrun_level;
  12 struct jumpnrun_tile_range;
  13
  14 struct jumpnrun_enemy;
  15
  16 typedef struct jumpnrun_enemy_type {
  17   unsigned            animation_ticks_per_frame;
  18   size_t              animation_length;
  19   badge_sprite const *animation_frames;
  20
  21   rectangle           hitbox;
  22   vec2d               spawn_inertia;
  23
  24   void (*collision_tiles)(struct jumpnrun_enemy             *self,
  25                           vec2d                             *desired_position,
  26                           struct jumpnrun_level             *lv,
  27                           struct jumpnrun_tile_range  const *visible_tiles);
  28   void (*collision_player)(struct jumpnrun_enemy      *self,
  29                            struct jumpnrun_game_state *state,
  30                            vec2d                      *player_inertia_mod);
  31   void (*collision_shots)(struct jumpnrun_enemy      *self,
  32                           struct jumpnrun_game_state *state);
  33
  34   void (*move_tick)(struct jumpnrun_enemy            *self,
  35                     struct jumpnrun_game_state       *state,
  36                     struct jumpnrun_level            *lv,
  37                     struct jumpnrun_tile_range const *visible_tiles,
  38                     vec2d                            *player_inertia_mod);
  39 } jumpnrun_enemy_type;
  40
  41 typedef struct jumpnrun_enemy {
  42   jumpnrun_moveable base;
  43   vec2d             spawn_pos;
  44
  45   jumpnrun_enemy_type const *type;
  46 } jumpnrun_enemy;
  47
  48 enum {
  49 // Do not collide with JUMPNRUN_MOVEABLE_* flags
  50   JUMPNRUN_ENEMY_SPAWNED        = 4,
  51   JUMPNRUN_ENEMY_UNAVAILABLE    = 8,
  52   JUMPNRUN_ENEMY_EVENT_TRIGGER1 = 128
  53 };
  54
  55 static inline rectangle    const *enemy_hitbox(jumpnrun_enemy const *enemy) { return &enemy->base.hitbox; }
  56 void jumpnrun_enemy_despawn(jumpnrun_enemy *self);
  57 void jumpnrun_enemy_reset  (jumpnrun_enemy *self);
  58
  59 enum {
  60   JUMPNRUN_ENEMY_TYPE_CAT,
  61   JUMPNRUN_ENEMY_TYPE_MUSHROOM,
  62   JUMPNRUN_ENEMY_TYPE_BUNNY,
  63   JUMPNRUN_ENEMY_TYPE_SNAKE,
  64   JUMPNRUN_ENEMY_TYPE_SPIRAL,
  65   JUMPNRUN_ENEMY_TYPE_ROTOR,
  66   JUMPNRUN_ENEMY_TYPE_DOG,
  67   JUMPNRUN_ENEMY_TYPE_GIRAFFE,
  68   JUMPNRUN_ENEMY_TYPE_BIRD,
  69   JUMPNRUN_ENEMY_TYPE_BIRD_STRAIGHT,
  70   JUMPNRUN_ENEMY_TYPE_BIRD_DIP,
  71
  72   JUMPNRUN_ENEMY_TYPE_COUNT
  73 };
  74
  75 extern jumpnrun_enemy_type const jumpnrun_enemy_type_data[JUMPNRUN_ENEMY_TYPE_COUNT];
  76
  77 void jumpnrun_process_enemy(jumpnrun_enemy                   *self,
  78                             badge_framebuffer                *fb,
  79                             struct jumpnrun_game_state       *state,
  80                             struct jumpnrun_level            *lv,
  81                             struct jumpnrun_tile_range const *visible_tiles,
  82                             vec2d                            *player_inertia_mod);
  83 #endif