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+//
+//  Cart.m
+//  Cart Collect
+//
+//  Created by Starla Insigna on 8/9/11.
+//  Copyright 2011 Four Island. All rights reserved.
+//
+
+#import "Cart.h"
+
+@implementation Cart
+
+@synthesize sprite;
+
+- (id)initWithSprite:(CCSprite*)m_sprite
+{
+    self = [super init];
+    
+    if (nil != self)
+    {
+        sprite = m_sprite;
+    }
+    
+    return self;
+}
+
+- (void)tick
+{
+    // Move the cart based on acceleration gathered from accelerometer
+        sprite.position = ccp(MIN(MAX(sprite.position.x+accelX, 16),464), sprite.position.y);
+}
+
+- (void)accelerometer:(UIAccelerometer*)accelerometer didAccelerate:(UIAcceleration*)acceleration
+{
+    static float prevY=0;
+        
+#define kFilterFactor 0.05f
+        
+        float accelY = -((float) acceleration.y * kFilterFactor + (1- kFilterFactor)*prevY);
+        
+        prevY = accelY;
+        accelX = accelY * 750;
+}
+
+@end