diff --git a/lib/torque/renderer/ball.js b/lib/torque/renderer/ball.js
index 702ce81..39ad5fb 100644
--- a/lib/torque/renderer/ball.js
+++ b/lib/torque/renderer/ball.js
@@ -18,16 +18,22 @@ function BallRenderer(thecanvas){
 	this.ballsSoFar = 0;
 	this.balls = 0;
 	this.cumulative = true;
+	this.RW4 = this.radius * this.width *4;
 }
 BallRenderer.prototype = {
+	getBallIndices: function(x, y){
+		var indices = new Int8Array(2*r+1);
+		
+		return indices;
+	},
 	addBall: function(x0, y0){
 		if(this.cachedBall){
-			var startingPoint = this.getRIndexPos(x0, y0) - this.radius * this.width *4 - this.radius*4;
+			var startingPoint = this.getRIndexPos(x0, y0) - this.RW4 - this.radius*4;
 			var i = 0, 
 			pointer = startingPoint, 
 			ballWidth = (this.radius*2)*4
 			linemax = startingPoint + 2 * this.radius*4,
-			endPoint = this.getRIndexPos(x0, y0) + this.radius * this.width *4 + this.radius;
+			endPoint = this.getRIndexPos(x0, y0) + this.RW4 + this.radius;
 			while (pointer <= endPoint){
 				while (pointer <= linemax){
 					this.pointLayer[pointer+3] += this.cachedBall[i+3];