trex: added highscore and setting (for highscore reset)

apps.json

@@ -362,13 +362,17 @@
   { "id": "trex",
     "name": "T-Rex",
     "icon": "trex.png",
-    "version":"0.02",
+    "version":"0.03",
     "description": "T-Rex game in the style of Chrome's offline game",
     "tags": "game",
     "allow_emulator":true,
     "storage": [
       {"name":"trex.app.js","url":"trex.js"},
-      {"name":"trex.img","url":"trex-icon.js","evaluate":true}
+      {"name":"trex.img","url":"trex-icon.js","evaluate":true},
+      {"name":"trex.settings.js","url":"settings.js"}
+    ],
+    "data": [
+      {"name":"trex.score", "storageFile": true}
     ]
   },
   { "id": "astroid",

apps/trex/ChangeLog

@@ -1 +1,2 @@
 0.02: Add "ram" keyword to allow 2v06 Espruino builds to cache function that needs to be fast
+0.03: Enabled BTN2 and BTN3, added highscore (score is saved to storage and can be reset in app settings menu)

apps/trex/settings.js

@@ -0,0 +1,19 @@
+(function (back) {
+  const menu = {
+    '': { 'title': 'T-Rex' },
+    '< Back': back,
+    'Reset Highscore': () => {
+      E.showPrompt('Reset Highscore?').then((v) => {
+        let delay = 50;
+        if (v) {
+          delay = 500;
+          E.showMessage('Resetting');
+          var f = require('Storage').open('trex.score', 'w');
+          f.write('0\n');
+        }
+        setTimeout(() => E.showMenu(menu), delay);
+      });
+    }
+  };
+  E.showMenu(menu);
+});

apps/trex/trex.js

@@ -1,3 +1,13 @@
+function loadHighScore() {
+  var f = require("Storage").open("trex.score", "r");
+  return f.readLine() || 0;
+}
+
+function saveHighScore(score) {
+  var f = require("Storage").open("trex.score", "w");
+  f.write(score + "\n");
+}
+
 greal = g;
 g.clear();
 g = Graphics.createArrayBuffer(120,64,1,{msb:true});
@@ -134,6 +144,8 @@ var IMG = {
 IMG.rex.forEach(i=>i.transparent=0);
 IMG.cacti.forEach(i=>i.transparent=0);
 var cacti, rex, frame;
+// displayedHighScore is not updated before restart
+var highScore = loadHighScore(), displayedHighScore;
 
 function gameStart() {
   rex = {
@@ -152,6 +164,7 @@ function gameStart() {
   }
   IMG.ground = { width: 128, height: 3, bpp : 1, buffer : random.buffer };
   frame = 0;
+  displayedHighScore = highScore;
   setInterval(onFrame, 50);
 }
 function gameStop() {
@@ -159,8 +172,13 @@ function gameStop() {
   rex.img = 2; // dead
   clearInterval();
   setTimeout(function() {
+    // putting saveHighScore here to not delay the frame drawing
+    if (rex.score > highScore) {
+      highScore = rex.score;
+      saveHighScore(highScore);
+    }
     setWatch(gameStart, BTNU, {repeat:0,debounce:50,edge:"rising"});
-  }, 1000);
+  }, 800);
   setTimeout(onFrame, 10);
 }
 
@@ -190,6 +208,9 @@ function onFrame() {
     while (cacti.length && cacti[0].x<0) cacti.shift();
   } else {
     g.drawString("Game Over!",(W-g.stringWidth("Game Over!"))/2,20);
+    if (rex.score > highScore) {
+      g.drawString("New Record!",(W-g.stringWidth("New Record!"))/2,28);
+    }
   }
   g.drawLine(0,60,239,60);
   cacti.forEach(c=>g.drawImage(IMG.cacti[c.img],c.x,60-IMG.cacti[c.img].height));
@@ -213,7 +234,8 @@ function onFrame() {
   var groundOffset = frame&127;
   g.drawImage(IMG.ground, -groundOffset, 61);
   g.drawImage(IMG.ground, 128-groundOffset, 61);
-  g.drawString(rex.score,(W-1)-g.stringWidth(rex.score));
+  g.drawString(displayedHighScore,(W-1)-g.stringWidth(displayedHighScore), 0);
+  g.drawString(rex.score,(W-1)-g.stringWidth(rex.score), 8);
   g.flip();
 }
 

core

@@ -1 +1 @@
-Subproject commit 0ba4c2bd5503264279222b04a41505471c6622ff
+Subproject commit 3f2ff467f22b746da94160e59ff89b621601b261