From 59a7eb083ff1f8f0d6f1e4eb4cd4637e3fc7a1da Mon Sep 17 00:00:00 2001
From: Robert Kolner <robert.kolner@gmail.com>
Date: Fri, 16 Mar 2012 14:59:30 +0100
Subject: [PATCH 1/2] Added score.

---
 tetris.js | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/tetris.js b/tetris.js
index d2d72bf..8e70129 100644
--- a/tetris.js
+++ b/tetris.js
@@ -28,7 +28,9 @@ function TetrisGame(id) {
 	/* Variables: */
 	/**************/
 	this.gameIsOver = false;
-
+	this.gameLinesCleared = 0;
+	this.gameScore = 0;
+	
 	this.width = 10;
 	this.height = 15;
 	this.canvas = new TetrisCanvas(id, this.width, this.height);
@@ -54,6 +56,17 @@ function TetrisGame(id) {
 		this.drawCurrentBrick();
 	}
 	
+	this.xyToTileIndex = function(x,y) {
+		return y * this.width + x;
+	}
+	
+	this.tileIndexToXY = function(tileIndex) {
+		var y = Math.floor(tileIndex / this.width);
+		var x = tileIndex % y;
+		
+		return [x,y];
+	}
+	
 	this.getRandomBrick = function() {
 		return 1 + Math.floor(Math.random() * 7);
 	}
@@ -253,6 +266,9 @@ function TetrisGame(id) {
 		for (var i = 0; i < filledLines.length; i++) {
 			this.removeLine(filledLines[i]-i);
 		}
+		
+		this.gameScore += filledLines.length * 100;
+		this.gameLinesCleared += filledLines.length;
 		this.drawUnlock();
 		this.redraw();
 

From 3e4b7f46bd624fa7f1b23108c8d35686645e93bb Mon Sep 17 00:00:00 2001
From: Robert Kolner <robert.kolner@gmail.com>
Date: Fri, 16 Mar 2012 14:59:54 +0100
Subject: [PATCH 2/2] Added util function.

---
 utils.js | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/utils.js b/utils.js
index 01c8f5b..d8771b3 100644
--- a/utils.js
+++ b/utils.js
@@ -10,3 +10,13 @@ function createArray(length) {
 
     return a;
 }
+
+function arrayContains(array, element) {
+	for (var i = 0; i < array.length; i++) {
+		if (array[i] == element) {
+			return true;
+		}
+	}
+	
+	return false;
+}