initial commit

1 files changed, 94 insertions, 0 deletions

diff --git a/world.h b/world.h
new file mode 100644
index 0000000..ad7acd2
--- /dev/null
+++ b/world.h
@@ -0,0 +1,94 @@
+#ifndef WORLD_H
+#define WORLD_H
+
+#include <SDL.h>
+
+#define CHUNK_DIM 128
+
+typedef enum tile {
+	TILE_RED,
+	TILE_GREEN,
+	TILE_BLUE,
+	TILE_LIGHT,
+	MAX_COLLECTIBLE,
+
+	TILE_EMPTY,
+	TILE_WALL,
+} tile;
+
+extern SDL_Color tile_colors[];
+
+#define PLAYER_STAMINA 1250
+#define PLAYER_WALK_DELAY 100
+#define PLAYER_PLACE_DELAY 175
+#define PLAYER_GRAVITY 30
+typedef struct player {
+	SDL_Point pos;
+	int scores[MAX_COLLECTIBLE];
+	int stamina_time;
+	int walk_wait;
+	int place_wait;
+	int gravity_time;
+} player;
+
+typedef struct chunk {
+	SDL_Point pos;
+	Uint8 tiles[CHUNK_DIM * CHUNK_DIM];
+	SDL_Texture *tex;
+	SDL_bool dirty;
+	SDL_bool loaded;
+	SDL_bool active;
+} chunk;
+
+#define MAX_CHUNKS 16
+#define SAVE_INTERVAL 120000
+typedef struct world {
+	player player;
+	SDL_Point view_pos;
+	chunk chunks[MAX_CHUNKS];
+	int save_time;
+} world;
+
+static inline SDL_Point chunk_pos_at(SDL_Point world_pos) {
+	return (SDL_Point) {
+		SDL_floor((double) world_pos.x / CHUNK_DIM),
+		SDL_floor((double) world_pos.y / CHUNK_DIM),
+	};
+}
+
+static inline SDL_Point pos_in_chunk(SDL_Point world_pos) {
+	SDL_Point cpos = chunk_pos_at(world_pos);
+	return (SDL_Point) {
+		world_pos.x - cpos.x * CHUNK_DIM,
+		world_pos.y - cpos.y * CHUNK_DIM,
+	};
+}
+
+static inline int tile_index(SDL_Point pos) {
+	SDL_assert(pos.x < CHUNK_DIM && pos.y < CHUNK_DIM);
+	return pos.y * CHUNK_DIM + pos.x;
+}
+
+chunk *load_chunk(world *w, SDL_Point chunk_pos);
+chunk *get_chunk(world *w, SDL_Point chunk_pos);
+SDL_bool chunk_exists(world *w, SDL_Point chunk_pos);
+
+tile get_tile(world *w, SDL_Point world_pos);
+void set_tile(world *w, SDL_Point world_pos, tile t);
+
+SDL_bool is_solid(tile t);
+
+SDL_bool player_grounded(world *w);
+void player_walk(world *w, int x, int y);
+void player_place(world *w, int x, int y);
+void player_destroy(world *w, int x, int y);
+void player_collect(world *w, SDL_Point pos);
+
+void tick_world(world *w);
+
+#define VIEW_DIM 40
+void draw_world(world *w, SDL_Window *win, SDL_Renderer *rend);
+
+void init_world(world *w);
+
+#endif