Initial import1.0

1 files changed, 130 insertions, 0 deletions

diff --git a/game/src/game.h b/game/src/game.h
new file mode 100644
index 0000000..9227987
--- /dev/null
+++ b/game/src/game.h
@@ -0,0 +1,130 @@
+#ifndef _GAME_H
+#define _GAME_H
+
+#ifndef LOCAL
+#define LOCAL extern
+#else
+
+#define WALK_CYCLE 4
+
+// walk animation frames, private
+const uint8_t walk_frames[WALK_CYCLE] = { 0, 1, 0, 2 };
+
+#endif
+
+/**
+ * Game implementation and helpers.
+ */
+
+// map size in tiles
+#define MAP_W 32
+#define MAP_H 21
+
+// some useful tiles
+#define LAST_SOLID_TILE     10
+#define BATTERY_TILE        224
+
+#define MAX_LIVES 3
+
+// player + other entities
+#define MAX_ENTITIES 11
+
+// MSB in our entity data
+#define DIR_FLAG 128
+
+// sprite direction
+#define DIR_LEFT 1
+#define DIR_RIGHT 0
+
+// how long we wait between animation frames
+#define FRAME_WAIT 3
+
+// how long the player is invulnerable after death
+// time in frames
+#define INVUL_TIME 64
+
+// show some game frames before jumping to the game over
+// screen; this helps the player to know what happened
+#define GAMEOVER_DELAY 72
+
+// types for our pattern groups
+// used by spman
+enum pattern_type
+{
+    PAT_PLAYER = 0,
+    PAT_PLAYER_FLIP,
+    PAT_ENEMY,
+    PAT_ENEMY_FLIP,
+};
+
+// entity types in the same order
+// used in the map (see map_conf.json)
+enum entity_type
+{
+    ET_UNUSED = 0,
+    ET_PLAYER,
+    ET_ENEMY,
+};
+
+// notes:
+//
+//  - x, y are the logic position on the map
+//  - sp.x, sp.y are the position on screen
+struct entity
+{
+    uint8_t type;
+    uint8_t x;
+    uint8_t y;
+    uint8_t dir;
+    uint8_t pat;
+    uint8_t flags;
+    uint8_t delay;
+    uint8_t frame;
+    void (*update)();
+};
+
+void run_game();
+
+void update_player();
+void update_enemy();
+
+void draw_map();
+void draw_hud();
+
+void erase_battery(uint8_t x, uint8_t y);
+
+uint8_t is_map_blocked(uint8_t x, uint8_t y);
+uint8_t is_map_elevator_up(uint8_t x, uint8_t y);
+uint8_t is_map_elevator_down(uint8_t x, uint8_t y);
+
+// our entities; the player is 0
+LOCAL struct entity entities[MAX_ENTITIES];
+
+// used to read our control method
+LOCAL uint8_t control;
+
+// current map; we don't use ROM because we will modify it
+LOCAL const uint8_t *cur_map;
+// current map tile map (map data, not entities)
+LOCAL uint8_t cur_map_data[MAP_W * MAP_H];
+
+// player lives
+LOCAL uint8_t lives;
+// invulnerability time after death
+LOCAL uint8_t invuln;
+// batteries left
+LOCAL uint8_t batteries;
+// show dome delay once the lives run out
+LOCAL uint8_t gameover_delay;
+
+// used by all entities
+LOCAL struct sprite_attr sp;
+
+// current entity
+LOCAL struct entity *self;
+
+#ifdef LOCAL
+#undef LOCAL
+#endif
+
+#endif // _GAME_H