Creating app.js

apps/numberchaser/app.js

@@ -0,0 +1,104 @@
+var randomNumber;
+var guessNumber = 1;
+
+function mathRandomInt(a, b) {
+  if (a > b) {
+    // Swap a and b to ensure a is smaller.
+    var c = a;
+    a = b;
+    b = c;
+  }
+  return Math.floor(Math.random() * (b - a + 1) + a);
+}
+
+/**
+ * Describe this function...
+ */
+function game() {
+
+  g.drawString('',0,20,true);
+  E.showMenu(numMenu);
+  console.log(randomNumber);
+}
+
+var numMenu = {
+   "" : {
+    "title" : "Number Chaser",
+  },
+  "Guess Number" : {
+    value : guessNumber,
+    min:1,max:100,step:1,
+    onchange : v => { guessNumber=v; }
+  },
+  "OK" : function () {
+    g.clear();
+    if (guessNumber == randomNumber) {
+      //if guess is correct
+      g.setFont("Vector",13);g.setFontAlign(-1,-1);
+      status = "You won! ";
+      gameOver();
+    } else {
+      //if guess is incorrect
+      g.setFont("Vector",13);g.setFontAlign(-1,-1);
+      if (guessNumber > randomNumber) {
+        //Decreases number if guess is greater
+        randomNumber = randomNumber - 1;
+        status = "Too high!";
+      } else if (guessNumber < randomNumber) {
+        //Increases number if guess is lower
+        status = "Too low!";
+        randomNumber = randomNumber + 1;
+      }
+      if (randomNumber < 0 || randomNumber > 100) {
+        //You lose when the number is out of the 1 to 100 range
+        g.setFont("Vector",13);g.setFontAlign(-1,-1);
+        g.drawString('You have lost\nNumber is out\nof range.',10,10,true);
+        status = "You lost!";
+      } else {
+        g.drawString(status+"\nTry again!",10,10);
+        Bangle.on('tap', function() {
+          delay(3000).then(() => game());
+        }
+       );
+      }
+    }
+  }   
+};
+
+function gameOver() 
+{
+  E.showPrompt(status+'Play again?',{title:""+'Number Chaser'}).then(function(a)   {
+      if (a) { 
+        randomNumber = mathRandomInt(1, 100);
+        game();
+      } else {
+        load(); 
+      }
+    }
+  );
+}
+
+function delay(time) {
+  return new Promise(resolve => setTimeout(resolve, time));
+}
+
+function instructions()
+{
+  g.setFont("Vector",13);g.setFontAlign(-1,-1);
+  g.drawString('Guess the number\nbetween 1 and 100.\nGuess too high, it\ndecreases by 1.\nToo low, it increases\nby 1.\nIf the number\ngoes below 0 or\nabove 100, it\nis out of range\nand you have\nlost.',10,10,true);
+  randomNumber = mathRandomInt(1, 100); 
+  delay(10000).then(() => game());
+}
+
+
+g.clear();
+E.showPrompt('Do you need instructions?',{title:""+'Number Chaser'}).then(function(a) 
+  { if (a) {
+    instructions(); 
+  } else 
+  {   
+     randomNumber = mathRandomInt(1, 100);
+     game(); 
+   }
+  }
+);