New game Snake!

apps.json

@@ -1171,5 +1171,18 @@
       {"name":"bledetect.app.js","url":"bledetect.js"},
       {"name":"bledetect.img","url":"bledetect-icon.js","evaluate":true}
     ]
+  },
+  { "id": "snake",
+    "name": "Snake",
+    "shortName":"Snake",
+    "icon": "snake.png",
+    "version":"0.01",
+    "description": "The classic snake game. Eat apples and don't bite your tail:",
+    "tags": "game,fun",
+    "readme": "README.md", 
+    "storage": [
+      {"name":"snake.app.js","url":"snake.js"},
+      {"name":"snake.img","url":"snake-icon.js","evaluate":true}
+    ]
   }
 ]

apps/snake/ChangeLog

@@ -0,0 +1 @@
+0.01: New App!

apps/snake/README.md

@@ -0,0 +1,13 @@
+# Snake
+
+![Screenshot](https://i.ibb.co/XzWrvPL/screenshot.png)
+
+The legentary classic game is now available on Bangle.js!  
+Eat apples and don't bite your tail.
+
+## Controls
+
+- UP: BTN1
+- DOWN: BTN3
+- LEFT: BTN4
+- RIGHT: BTN5

apps/snake/snake-icon.js

@@ -0,0 +1 @@
+require("heatshrink").decompress(atob("mEwxH+AH4A/AH4A/AH4A/ADE3m9hsIusrdhGIM3LtU3g0GAgQxlEwIqBmEAgEGF4QwkF4c3F4MxF4dbF8qLDrYHDre74IABF8QwBLoaPDF8wPKF96/jF/4v/F/4vrrc3AIQsnsIAKF94wiFxgv/R//+m4ABrYALBwIpYFwwAQLC4v/F7gXGF91hACovWFqwwUF4VbF7IwUFzSRVF1gwCF9wwZFyoA/AH4A/AH4A/AGg="))

apps/snake/snake.js

@@ -0,0 +1,144 @@
+const H = g.getWidth();
+const W = g.getHeight();
+let running = true;
+let score = 0;
+let d;
+
+// game world
+const gridSize = 40;
+const tileSize = 6;
+let nextX = 0;
+let nextY = 0;
+
+// snake
+const defaultTailSize = 3;
+let tailSize = defaultTailSize;
+const snakeTrail = [];
+let snakeX = 10;
+let snakeY = 10;
+
+// apple
+let appleX = Math.floor(Math.random() * gridSize);
+let appleY = Math.floor(Math.random() * gridSize);
+
+function gameStart() {
+  running = true;
+  score = 0;
+}
+
+function gameStop() {
+  g.clear();
+  g.setColor("#FFFFFF");
+  g.setFont("6x8", 2);
+  g.drawString("GAME OVER!", W / 2, H / 2 - 20);
+  g.drawString("Tap to Restart", W / 2, H / 2 + 20);
+  running = false;
+  tailSize = defaultTailSize;
+}
+
+function draw() {
+  if (!running) {
+    return;
+  }
+
+  // move snake in next pos
+  snakeX += nextX;
+  snakeY += nextY;
+
+  // snake over game world?
+  if (snakeX < 0) {
+    snakeX = gridSize - 1;
+  }
+
+  if (snakeX > gridSize - 1) {
+    snakeX = 0;
+  }
+
+  if (snakeY < 0) {
+    snakeY = gridSize - 1;
+  }
+  if (snakeY > gridSize - 1) {
+    snakeY = 0;
+  }
+
+  //snake bite apple?
+  if (snakeX === appleX && snakeY === appleY) {
+    tailSize++;
+    score++;
+
+    appleX = Math.floor(Math.random() * gridSize);
+    appleY = Math.floor(Math.random() * gridSize);
+  }
+
+  //paint background
+  g.setColor("#000000");
+  g.fillRect(0, 0, H, W);
+
+  // paint snake
+  g.setColor("#008000");
+
+  for (let i = 0; i < snakeTrail.length; i++) {
+    g.fillRect(snakeTrail[i].x * tileSize, snakeTrail[i].y * tileSize, snakeTrail[i].x * tileSize + tileSize, snakeTrail[i].y * tileSize + tileSize);
+
+    //snake bites it's tail?
+    if (snakeTrail[i].x === snakeX && snakeTrail[i].y === snakeY && tailSize > defaultTailSize) {
+      gameStop();
+    }
+  }
+
+  // paint apple
+  g.setColor("#FF0000");
+  g.fillRect(appleX * tileSize, appleY * tileSize, appleX * tileSize + tileSize, appleY * tileSize + tileSize);
+
+  // paint score
+  g.setColor("#FFFFFF");
+  g.setFont("6x8");
+  g.setFontAlign(0, 0);
+  g.drawString("Score:" + score, W / 2, 10);
+
+  //set snake trail
+  snakeTrail.push({ x: snakeX, y: snakeY });
+  while (snakeTrail.length > tailSize) {
+    snakeTrail.shift();
+  }
+}
+
+// input
+setWatch(() => {// Up
+  if (d !== 'd') {
+    nextX = 0;
+    nextY = -1;
+    d = 'u';
+  }
+}, BTN1, { repeat: true });
+setWatch(() => {// Down
+  if (d !== 'u') {
+    nextX = 0;
+    nextY = 1;
+    d = 'd';
+  }
+}, BTN3, { repeat: true });
+setWatch(() => {// Left
+  if (d !== 'r') {
+    nextX = -1;
+    nextY = 0;
+    d = 'l';
+  }
+}, BTN4, { repeat: true });
+setWatch(() => {// Right
+  if (d !== 'l') {
+    nextX = 1;
+    nextY = 0;
+    d = 'r';
+  }
+}, BTN5, { repeat: true });
+
+Bangle.on('touch', button => {
+  if (!running) {
+    gameStart();
+  }
+});
+
+// render X times per second
+var x = 5;
+setInterval(draw, 1000 / x);