Create snake_classic.js (#2575)

* Create snake_classic.js * Update Metadata --------- Co-authored-by: Alex Park <[email protected]>
hackclub · Nov 13, 2024 · 67308c7 · 67308c7
1 parent 112132f
commit 67308c7
Showing 1 changed file with 154 additions and 0 deletions.
diff --git a/games/snake_classic.js b/games/snake_classic.js
@@ -0,0 +1,154 @@
+/*
+@author: Tonkatsu DJ Agetarō
+@title: Snake Classic
+@tags: []
+@addedOn: 2024-11-12
+*/
+
+const snakeBody = "s";
+const food = "f";
+const background = "b";
+
+let snake = [{ x: 5, y: 5 }];
+let direction = { x: 0, y: 1 };
+let foodPosition = { x: Math.floor(Math.random() * 10), y: Math.floor(Math.random() * 10) };
+let score = 0;
+let gameRunning = true;
+
+setLegend(
+  [snakeBody, bitmap`
+................
+................
+................
+................
+................
+................
+......LLLL......
+......LLLL......
+......LLLL......
+......LLLL......
+................
+................
+................
+................
+................
+................`],
+  [food, bitmap`
+................
+................
+................
+................
+................
+................
+......3333......
+......3333......
+......3333......
+......3333......
+................
+................
+................
+................
+................
+................`], 
+  [background, bitmap`
+DDDDDDDDDDDDDDDD
+DDDDDDDDDDDDDDDD
+4444444444444444
+4444444444444444
+4444444444444444
+4444444444444444
+DDDDDDDDDDDDDDDD
+DDDDDDDDDDDDDDDD
+DDDDDDDDDDDDDDDD
+DDDDDDDDDDDDDDDD
+4444444444444444
+4444444444444444
+4444444444444444
+4444444444444444
+DDDDDDDDDDDDDDDD
+DDDDDDDDDDDDDDDD`]
+);
+
+setBackground(background);
+setMap(createMap());
+
+onInput("w", () => { if (direction.y === 0) direction = { x: 0, y: -1 } });
+onInput("s", () => { if (direction.y === 0) direction = { x: 0, y: 1 } });
+onInput("a", () => { if (direction.x === 0) direction = { x: -1, y: 0 } });
+onInput("d", () => { if (direction.x === 0) direction = { x: 1, y: 0 } });
+
+setInterval(() => {
+  if (gameRunning) {
+    updateSnakePosition();
+    checkFood();
+    render();
+  } else {
+    gameOver();
+  }
+}, 200);
+
+function createMap() {
+  return map`
+  bbbbbbbbbb
+  bbbbbbbbbb
+  bbbbbbbbbb
+  bbbbbbbbbb
+  bbbbbbbbbb
+  bbbbbbbbbb
+  bbbbbbbbbb
+  bbbbbbbbbb
+  bbbbbbbbbb
+  bbbbbbbbbb`;
+}
+
+function updateSnakePosition() {
+  const newHead = {
+    x: (snake[0].x + direction.x + 10) % 10,
+    y: (snake[0].y + direction.y + 10) % 10
+  };
+
+  for (let i = 1; i < snake.length; i++) {
+    if (newHead.x === snake[i].x && newHead.y === snake[i].y) {
+      gameOver();
+      return;
+    }
+  }
+
+  snake.unshift(newHead);
+
+  if (!(newHead.x === foodPosition.x && newHead.y === foodPosition.y)) {
+    const tail = snake.pop();
+    clearTile(tail.x, tail.y);
+  }
+}
+
+function checkFood() {
+  if (snake[0].x === foodPosition.x && snake[0].y === foodPosition.y) {
+    score++;
+    placeNewFood();
+  }
+}
+
+function placeNewFood() {
+  foodPosition = {
+    x: Math.floor(Math.random() * 10),
+    y: Math.floor(Math.random() * 10)
+  };
+}
+
+function render() {
+  clearTile(foodPosition.x, foodPosition.y);
+  addSprite(foodPosition.x, foodPosition.y, food);
+  for (let i = 0; i < snake.length; i++) {
+    addSprite(snake[i].x, snake[i].y, snakeBody);
+  }
+  clearText();
+  addText(`${score}`, { x: 3, y: 1, color: color`2` });
+}
+
+function gameOver() {
+  gameRunning = false;
+  clearText();
+  addText("Game Over", { x: 6, y: 7, color: color`2` });
+  addText(`Score: ${score}`, { x: 6, y: 8, color: color`2` });
+}