1 files changed, 54 insertions, 0 deletions
diff --git a/snake.h b/snake.h
index e69de29..a7439bb 100644
--- a/snake.h
+++ b/snake.h
@@ -0,0 +1,54 @@
+#ifndef SNAKE_H
+#define SNAKE_H
+
+#include <stdbool.h>
+#include <stddef.h>
+
+typedef enum Direction {
+	NORTH,
+	WEST,
+	EAST,
+	SOUTH
+} Direction;
+
+typedef struct Point {
+	unsigned int x;
+	unsigned int y;
+} Point;
+
+typedef struct PointList {
+	Point point;
+	struct PointList *next;
+} PointList;
+
+typedef struct Snake {
+	PointList *head;
+	PointList *tail;
+	size_t length;
+	Direction moving_direction;
+} Snake;
+
+typedef struct Map {
+	Point fruit;
+	Snake *snake;
+	bool fruit_eaten;
+	unsigned int height;
+	unsigned int width;
+} Map;
+
+Snake *create_snake(unsigned int x, unsigned int y, Direction direction);
+
+Map *create_map(unsigned int width, unsigned int height);
+
+/* Attempts to move the snake.
+ * Returns true if the snake sucessfully moved,
+ * false for game over.
+ */
+bool move_snake(Map *map);
+
+/* Frees the snake */
+void free_snake(Snake *snake);
+
+void free_map(Map *map);
+
+#endif /* SNAKE_H */