// snake.ts / ME Creative & Design
const GRID = 20;
type Point = { x: number; y: number };

let snake: Point[] = [{ x: 8, y: 10 }, { x: 7, y: 10 }, { x: 6, y: 10 }];
let dir: Point = { x: 1, y: 0 };
let food: Point = { x: 14, y: 10 };
let score = 0;

function placeFood() {
  do {
    food = { x: rand(GRID), y: rand(GRID) };
  } while (snake.some((s) => s.x === food.x && s.y === food.y));
}

function tick(): boolean {
  const head = { x: snake[0].x + dir.x, y: snake[0].y + dir.y };
  const hitWall = head.x < 0 || head.y < 0 || head.x >= GRID || head.y >= GRID;
  const hitSelf = snake.some((s) => s.x === head.x && s.y === head.y);
  if (hitWall || hitSelf) return false;
  snake.unshift(head);
  if (head.x === food.x && head.y === food.y) {
    score += 1;
    placeFood();
  } else {
    snake.pop();
  }
  return true;
}

function steer(next: Point) {
  if (next.x === -dir.x && next.y === -dir.y) return; // no U-turns
  dir = next;
}

window.addEventListener("keydown", (e) => {
  if (e.key === "ArrowUp") steer({ x: 0, y: -1 });
  if (e.key === "ArrowDown") steer({ x: 0, y: 1 });
  if (e.key === "ArrowLeft") steer({ x: -1, y: 0 });
  if (e.key === "ArrowRight") steer({ x: 1, y: 0 });
});

function draw(ctx: CanvasRenderingContext2D, cell: number) {
  ctx.fillStyle = "#171c1e";
  ctx.fillRect(0, 0, GRID * cell, GRID * cell);
  ctx.fillStyle = "#e6a57a";
  ctx.fillRect(food.x * cell, food.y * cell, cell, cell);
  ctx.fillStyle = "#f6f1e7";
  for (const s of snake) ctx.fillRect(s.x * cell, s.y * cell, cell - 1, cell - 1);
}

function loop() {
  if (!tick()) return gameOver(score);
  draw(ctx, cell);
  setTimeout(loop, Math.max(60, 120 - score * 3));
}

loop();
// snake.ts / ME Creative & Design
const GRID = 20;
type Point = { x: number; y: number };

let snake: Point[] = [{ x: 8, y: 10 }, { x: 7, y: 10 }, { x: 6, y: 10 }];
let dir: Point = { x: 1, y: 0 };
let food: Point = { x: 14, y: 10 };
let score = 0;

function placeFood() {
  do {
    food = { x: rand(GRID), y: rand(GRID) };
  } while (snake.some((s) => s.x === food.x && s.y === food.y));
}

function tick(): boolean {
  const head = { x: snake[0].x + dir.x, y: snake[0].y + dir.y };
  const hitWall = head.x < 0 || head.y < 0 || head.x >= GRID || head.y >= GRID;
  const hitSelf = snake.some((s) => s.x === head.x && s.y === head.y);
  if (hitWall || hitSelf) return false;
  snake.unshift(head);
  if (head.x === food.x && head.y === food.y) {
    score += 1;
    placeFood();
  } else {
    snake.pop();
  }
  return true;
}

function steer(next: Point) {
  if (next.x === -dir.x && next.y === -dir.y) return; // no U-turns
  dir = next;
}

window.addEventListener("keydown", (e) => {
  if (e.key === "ArrowUp") steer({ x: 0, y: -1 });
  if (e.key === "ArrowDown") steer({ x: 0, y: 1 });
  if (e.key === "ArrowLeft") steer({ x: -1, y: 0 });
  if (e.key === "ArrowRight") steer({ x: 1, y: 0 });
});

function draw(ctx: CanvasRenderingContext2D, cell: number) {
  ctx.fillStyle = "#171c1e";
  ctx.fillRect(0, 0, GRID * cell, GRID * cell);
  ctx.fillStyle = "#e6a57a";
  ctx.fillRect(food.x * cell, food.y * cell, cell, cell);
  ctx.fillStyle = "#f6f1e7";
  for (const s of snake) ctx.fillRect(s.x * cell, s.y * cell, cell - 1, cell - 1);
}

function loop() {
  if (!tick()) return gameOver(score);
  draw(ctx, cell);
  setTimeout(loop, Math.max(60, 120 - score * 3));
}

loop();
// snake.ts / ME Creative & Design
const GRID = 20;
type Point = { x: number; y: number };

let snake: Point[] = [{ x: 8, y: 10 }, { x: 7, y: 10 }, { x: 6, y: 10 }];
let dir: Point = { x: 1, y: 0 };
let food: Point = { x: 14, y: 10 };
let score = 0;

function placeFood() {
  do {
    food = { x: rand(GRID), y: rand(GRID) };
  } while (snake.some((s) => s.x === food.x && s.y === food.y));
}

function tick(): boolean {
  const head = { x: snake[0].x + dir.x, y: snake[0].y + dir.y };
  const hitWall = head.x < 0 || head.y < 0 || head.x >= GRID || head.y >= GRID;
  const hitSelf = snake.some((s) => s.x === head.x && s.y === head.y);
  if (hitWall || hitSelf) return false;
  snake.unshift(head);
  if (head.x === food.x && head.y === food.y) {
    score += 1;
    placeFood();
  } else {
    snake.pop();
  }
  return true;
}

function steer(next: Point) {
  if (next.x === -dir.x && next.y === -dir.y) return; // no U-turns
  dir = next;
}

window.addEventListener("keydown", (e) => {
  if (e.key === "ArrowUp") steer({ x: 0, y: -1 });
  if (e.key === "ArrowDown") steer({ x: 0, y: 1 });
  if (e.key === "ArrowLeft") steer({ x: -1, y: 0 });
  if (e.key === "ArrowRight") steer({ x: 1, y: 0 });
});

function draw(ctx: CanvasRenderingContext2D, cell: number) {
  ctx.fillStyle = "#171c1e";
  ctx.fillRect(0, 0, GRID * cell, GRID * cell);
  ctx.fillStyle = "#e6a57a";
  ctx.fillRect(food.x * cell, food.y * cell, cell, cell);
  ctx.fillStyle = "#f6f1e7";
  for (const s of snake) ctx.fillRect(s.x * cell, s.y * cell, cell - 1, cell - 1);
}

function loop() {
  if (!tick()) return gameOver(score);
  draw(ctx, cell);
  setTimeout(loop, Math.max(60, 120 - score * 3));
}

loop();