Game: Snake (src/game_snake.c)

Functions:

• snake_init() — Initialize game state, starting length/direction, score, and place food.
• snake_update() — Advance the game by one tick: move the snake, detect wall/self collisions, handle food collection and growth.
• snake_draw() — Render the playfield, snake, food, and score to the screen.
• snake_handle_key(k) — Handle key input during the game; prevents direct reversal and returns 1 on ESC to exit.

Source: src/game_snake.c