1 files changed, 78 insertions, 0 deletions
diff --git a/torus.h b/torus.h
new file mode 100644
index 0000000..23b4708
--- /dev/null
+++ b/torus.h
@@ -0,0 +1,78 @@
+#include <stdbool.h>
+#include <stdint.h>
+#include <assert.h>
+
+#define ALIGNED(x) __attribute__((aligned(x)))
+
+enum {
+    COLOR_BLACK,
+    COLOR_RED,
+    COLOR_GREEN,
+    COLOR_YELLOW,
+    COLOR_BLUE,
+    COLOR_MAGENTA,
+    COLOR_CYAN,
+    COLOR_WHITE,
+    COLOR_BRIGHT,
+};
+
+#define CELL_ROWS (25)
+#define CELL_COLS (80)
+#define CELLS_SIZE (sizeof(char[CELL_ROWS][CELL_COLS]))
+
+#define CELL_INIT_X (CELL_COLS / 2)
+#define CELL_INIT_Y (CELL_ROWS / 2)
+
+struct Tile {
+    bool present;
+    char cells[CELL_ROWS][CELL_COLS] ALIGNED(16);
+    uint8_t colors[CELL_ROWS][CELL_COLS] ALIGNED(16);
+} ALIGNED(4096);
+static_assert(sizeof(struct Tile) == 4096, "struct Tile is page-sized");
+
+#define TILE_ROWS (512)
+#define TILE_COLS (512)
+#define TILES_SIZE (sizeof(struct Tile[TILE_ROWS][TILE_COLS]))
+
+#define TILE_INIT_X (0)
+#define TILE_INIT_Y (0)
+
+enum ServerMessageType {
+    SERVER_TILE,
+    SERVER_MOVE,
+    SERVER_PUT,
+};
+
+struct ServerMessage {
+    enum ServerMessageType type;
+    union {
+        struct {
+            uint8_t cellX;
+            uint8_t cellY;
+        } m;
+        struct {
+            uint8_t cellX;
+            uint8_t cellY;
+            uint8_t color;
+            char cell;
+        } p;
+    } data;
+};
+
+enum ClientMessageType {
+    CLIENT_MOVE,
+    CLIENT_COLOR,
+    CLIENT_PUT,
+};
+
+struct ClientMessage {
+    enum ClientMessageType type;
+    union {
+        struct {
+            int8_t dx;
+            int8_t dy;
+        } m;
+        uint8_t c;
+        char p;
+    } data;
+};