From 48ce3cf5a06e34f0033f942d362386bb050e53c8 Mon Sep 17 00:00:00 2001
From: Philipp Abraham <abrahamp@informatik.uni-luebeck.de>
Date: Sun, 16 Feb 2014 22:30:36 +0100
Subject: [PATCH] show message when difficulty level increases

---
 src/game.js  | 34 +++++++++++++++++++++++++++++++++-
 src/score.js |  7 +++----
 2 files changed, 36 insertions(+), 5 deletions(-)

diff --git a/src/game.js b/src/game.js
index 4fd38db..66914a0 100644
--- a/src/game.js
+++ b/src/game.js
@@ -12,6 +12,7 @@ define(['bird', 'pipe', 'score', 'difficulty', '../lib/promise-0.1.1.min'], func
   
   var flash = false;
   var showIntroScreen = true;
+  var levelPassed = false;
   
   var bgCanvas = document.createElement('canvas');
   bgCanvas.width = 640;
@@ -106,6 +107,7 @@ define(['bird', 'pipe', 'score', 'difficulty', '../lib/promise-0.1.1.min'], func
     
     if ( bird.getLowerBound() >= groundLevel || collision ) {
       score.resetPoints();
+      difficulty.reset();
       bird.die();
       flash = true;
     }
@@ -118,6 +120,10 @@ define(['bird', 'pipe', 'score', 'difficulty', '../lib/promise-0.1.1.min'], func
            pipeRightOuter <bird.getPosition().x) {
         pipe.passed = true;
         score.addPoint();
+        if ( difficulty.qualifiedForNextLevel(score.getPoints()) ) {
+          difficulty.advanceLevel();
+          levelPassed = true;
+        }
       }
     });
   }
@@ -159,6 +165,29 @@ define(['bird', 'pipe', 'score', 'difficulty', '../lib/promise-0.1.1.min'], func
     };
   })();
   
+  var drawNextLevelText = (function() {
+    var frame = 0;
+    var maxFrames = 20;
+    return function(ctx) {
+      if (frame < maxFrames) {
+        ctx.save();
+        var fontSize = ~~(20+10*frame/maxFrames);
+        ctx.font = ""+fontSize+"px 'Press Start 2P'";
+        ctx.fillStyle = "white";
+        ctx.textAlign = 'center';
+        ctx.fillText("Next Level!", game.SIZE[0]/2, game.SIZE[1]/2);
+        ctx.lineWidth = 1;
+        ctx.strokeStyle = 'black';
+        ctx.strokeText("Next Level!", game.SIZE[0]/2, game.SIZE[1]/2);
+        ctx.restore();
+        frame++;
+      } else {
+        levelPassed = false;
+        frame = 0;
+      }
+    };
+  })();
+  
   function drawIntroScreen(ctx) {
     var p = {x: 80, y:20, h:50, w:280};
     // arrow
@@ -201,8 +230,11 @@ define(['bird', 'pipe', 'score', 'difficulty', '../lib/promise-0.1.1.min'], func
     score.draw(ctx);
     flashScreen(ctx);
     
-    if ( showIntroScreen )
+    if (showIntroScreen)
       drawIntroScreen(ctx);
+    
+    if (levelPassed)
+      drawNextLevelText(ctx);
   }
   
   return {
diff --git a/src/score.js b/src/score.js
index 6b0033e..2269a82 100644
--- a/src/score.js
+++ b/src/score.js
@@ -1,4 +1,4 @@
-define(['difficulty'], function(difficulty) {
+define([], function() {
   "use strict";
   
   var points = 0;
@@ -28,7 +28,6 @@ define(['difficulty'], function(difficulty) {
   }
   
   function resetPoints() {
-    difficulty.reset();
     points = 0;
   }
   
@@ -38,7 +37,6 @@ define(['difficulty'], function(difficulty) {
       maxPoints = points;
       save(maxPoints);
     }
-    difficulty.setLevel(points);
   }
   
   function save() {
@@ -49,7 +47,8 @@ define(['difficulty'], function(difficulty) {
     init: init,
     draw: draw,
     resetPoints: resetPoints,
-    addPoint: addPoint
+    addPoint: addPoint,
+    getPoints: function() { return points; }
   };
   
 });
\ No newline at end of file