// // SpriteCategories.swift // BrickBreaker // // Created by Sally McNichols on 10/1/14. // Copyright (c) 2014 CMU iOS Development StuCo. All rights reserved. // import Foundation // constants for the physics body bit masks used in contact/collision detection let blockCategory: UInt32 = 0x1 << 0 let ballCategory: UInt32 = 0x1 << 1 let paddleCateogry: UInt32 = 0x1 << 2