Add sudoku game

apps/sudoku/ChangeLog

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+0.01: New App!

apps/sudoku/app.js

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+var settings = require("Storage").readJSON("sudoku.json",1)||{};
+
+const Layout = require("Layout");
+var puzzle = ""; // start puzzle space for blanks, 81 char str
+var solution = ""; // the solution for the puzzle 81 char str
+var current = ""; // current puzzle state, 81 char str 
+var sx=4, sy=4; // selected item
+var dx=0, dy=0, dmoved=false; // current drag amount
+const DRAG = 20;
+const CHOOSERFONT = "12x20:2";
+const COL_GOOD = "#00F";
+const COL_BAD  = "#F00";
+
+function saveSettings() {
+  settings.puzzle = puzzle;
+  settings.solution = solution;
+  settings.current = current;
+  require("Storage").writeJSON("sudoku.json",settings);
+}
+
+function startGame(difficulty) {
+  let file = require("Storage").read("sudoku.easy.txt");
+  let games = 0|(file.length/163);
+  let game = Math.floor(Math.random()*games);
+  let line = file.substr(game*163, 162);
+  puzzle = line.substr(0,81).replaceAll("-"," ");
+  current = ""+puzzle; // new string
+  solution = line.substr(81,81);
+  showGrid();
+}
+
+function draw() {
+  g.clear(1);  
+  for (var i=0;i<10;i++) {
+    g.setColor((i%3)?"#888":g.theme.fg);
+    g.fillRect(7+18*i, 7, 7+18*i, 169);
+    g.fillRect(7, 7+18*i, 169, 7+18*i);
+  }
+  i = 0;
+  g.setFont("6x8:2").setFontAlign(0,0);
+  for (var y=0;y<9;y++) 
+    for (var x=0;x<9;x++) 
+      g.setColor(puzzle[i]==" "?((solution[i]==current[i])?COL_GOOD:COL_BAD):g.theme.fg).drawString(current[i++], 16 + 18*x, 16 + 18*y);
+}
+function drawSq(x,y,sel) {
+  g.setColor(sel ? g.theme.bgH : g.theme.bg).fillRect(8+x*18,8+y*18,24+x*18,24+y*18);  
+  g.setFont("6x8:2").setFontAlign(0,0).setColor(sel ? g.theme.fgH : g.theme.fg);  
+  var i = x+y*9;
+  g.setColor(puzzle[i]==" "?((solution[i]==current[i])?COL_GOOD:COL_BAD):g.theme.fg).drawString(current[i++], 16 + 18*x, 16 + 18*y);
+}
+
+// precalculate our layout
+var choose = function(num) {
+  if (num!==undefined) {
+    Bangle.buzz(100);
+    var i = sx+sy*9;
+    current = current.substr(0,i)+num+current.substr(i+1);
+  }
+  showGrid();
+  if (current == solution) {
+    saveSettings();
+    E.showMessage(/*LANG*/"Well done,\nyou finished!", {
+      title:"Sudoku",
+      buttons : {"Ok":true},
+      img : require("heatshrink").decompress(atob("k8pwcBkmSpICCnVp0IIFAQl27dt2wOJ9On7/582YtOJBws7tv/DoQKCBwubvvmzVp0wCCHAvf9u2DpE8uOn7waEjQdDq1Itv+DQQCB0gZBkMkyPHj1tHAuGAQOJktt/Ubvo4DAQI3ChMcuPHzd5HAeasICBtFOr/kw3fDQe27RhCofH/lx4xxFSQIFBiu/rNhHAp0DyHx447BHAh0Ekt/61YlodFOgaPBDoJWFAQeJrf1yySBDohWCoVJOgUcKw+YyVOrtly0LKw4eBp4dCjytHBwNOrNlyUbDoVpHAYDBo4dH02EFoTpBDoQ7B2MyZALMCHYsGtOOjALDAQQ7CyM6tFkFIgCDDoPBnkT4wLFAQegxP8z/JBxNwp8E+ALHAQMl+V/n4aIAQI4B4McBxU/z/P8gOKjnx4JHJAQP//5WKSoVwDRICBv//FJTRDBxeT/5WLkmR45WLkitLARNIA"))
+    }).then(showMenu);
+  }
+};
+var numberChooser = new Layout( {
+  type:"v", c: [
+    {type:"h", c: [
+      {type:"btn", font:CHOOSERFONT, label:"1", fillx:1, cb:()=>choose(1) },
+      {type:"btn", font:CHOOSERFONT, label:"2", fillx:1, cb:()=>choose(2) },
+      {type:"btn", font:CHOOSERFONT, label:"3", fillx:1, cb:()=>choose(3) }
+    ]},
+    {type:"h", c: [
+      {type:"btn", font:CHOOSERFONT, label:"4", fillx:1, cb:()=>choose(4) },
+      {type:"btn", font:CHOOSERFONT, label:"5", fillx:1, cb:()=>choose(5) },
+      {type:"btn", font:CHOOSERFONT, label:"6", fillx:1, cb:()=>choose(6) }
+    ]},
+    {type:"h", c: [
+      {type:"btn", font:CHOOSERFONT, label:"7", fillx:1, cb:()=>choose(7) },
+      {type:"btn", font:CHOOSERFONT, label:"8", fillx:1, cb:()=>choose(8) },
+      {type:"btn", font:CHOOSERFONT, label:"9", fillx:1, cb:()=>choose(9) }
+    ]}
+  ], fillx:1
+}, {btns:[ {label:/*LANG*/"Back", cb: l=>choose()} ]});
+
+function showGrid() {
+  Bangle.setUI({mode:"custom", drag:e=>{
+    if (e.b) {
+      dx += e.dx;
+      dy += e.dy;
+      while (Math.abs(dx) >= DRAG) {
+        Bangle.buzz(40);
+        let old = sx;
+        sx = (sx+9+Math.sign(dx))%9;
+        dx -= Math.sign(dx)*DRAG;
+        drawSq(old,sy,0);
+        drawSq(sx,sy,1);
+        dmoved = true;
+      }
+      while (Math.abs(dy) >= DRAG) {
+        Bangle.buzz(40);
+        let old = sy;
+        sy = (sy+9+Math.sign(dy))%9;
+        dy -= Math.sign(dy)*DRAG;
+        drawSq(sx,old,0);
+        drawSq(sx,sy,1);
+        dmoved = true;
+      }
+    } else {
+      if (!dmoved && puzzle[sx+sy*9]==" ") {
+        Bangle.buzz(100);
+        setTimeout(showSelectNumber, 10);
+      }
+      dx = dy = 0;
+      dmoved = false;
+    }
+  }, btn:() => {
+    saveSettings();
+    showMenu();
+  }});
+  draw();
+  drawSq(sx,sy,1);
+}
+
+function showSelectNumber() {
+  g.clear();
+  numberChooser.setUI();
+  numberChooser.render();
+}
+
+function showMenu() {
+  var menu = { "" : { title: "Sudoku" } };
+  if (settings.puzzle) 
+    menu["Resume Game"] = () => {
+      puzzle = settings.puzzle;
+      solution = settings.solution;
+      current = settings.current;
+      showGrid();
+    };
+  menu["New Game"] = () => {
+    E.showMenu({ "" : { title: /*LANG*/"Difficulty", back : showMenu },
+      "Easy" : () => startGame("easy"),
+      "Medium" : () => startGame("medium"),
+      "Hard" : () => startGame("hard")
+    });
+  };
+  menu["Exit"] = () => load();
+  E.showMenu(menu);
+}
+
+if (settings.puzzle) {
+  puzzle = settings.puzzle;
+  solution = settings.solution;
+  current = settings.current;
+  showGrid();
+} else {
+  showMenu();
+}
+
+E.on("kill", saveSettings); // ensure we save the game

apps/sudoku/gen_sudoku.js

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+/* 
+Call this to generate the data files needed.
+
+npm install sudoku-gen 
+
+*/
+
+var getSudoku = require('sudoku-gen').getSudoku;
+
+//  (easy, medium, hard, expert)
+function gen(difficulty) {
+    console.log("Generate", difficulty);
+    // Get a sudoku of specific difficulty
+    let result = "";
+    for (let i=0;i<200;i++) {
+        const sudoku = getSudoku('easy');
+        result += sudoku.puzzle + sudoku.solution+"\n";
+    }
+    require("fs").writeFileSync("sudoku."+difficulty+".txt", result);
+}
+
+gen("easy");
+gen("medium");
+gen("hard");

apps/sudoku/metadata.json

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+{ "id": "sudoku",
+  "name": "Sudoku",
+  "shortName":"Sudoku",
+  "version":"0.01",
+  "description": "A Sudoku game that allows you to play one of 600 pre-made puzzles",
+  "icon": "app.png",
+  "screenshots" : [ { "url":"screenshot.png" } ],
+  "tags": "game",
+  "supports" : ["BANGLEJS2"],
+  "storage": [
+    {"name":"sudoku.app.js","url":"app.js"},
+    {"name":"sudoku.img","url":"app-icon.js","evaluate":true},
+    {"name":"sudoku.easy.txt","url":"sudoku.easy.txt"},
+    {"name":"sudoku.medium.txt","url":"sudoku.medium.txt"},
+    {"name":"sudoku.hard.txt","url":"sudoku.hard.txt"}
+  ]
+}