| | | 1 | | using UnityEngine; |
| | | 2 | | using System.Collections; |
| | | 3 | | |
| | | 4 | | /// <summary> |
| | | 5 | | /// Extension methods class |
| | | 6 | | /// </summary> |
| | | 7 | | public static class UniGifExtension |
| | | 8 | | { |
| | | 9 | | /// <summary> |
| | | 10 | | /// Convert BitArray to int (Specifies the start index and bit length) |
| | | 11 | | /// </summary> |
| | | 12 | | /// <param name="startIndex">Start index</param> |
| | | 13 | | /// <param name="bitLength">Bit length</param> |
| | | 14 | | /// <returns>Converted int</returns> |
| | | 15 | | public static int GetNumeral(this BitArray array, int startIndex, int bitLength) |
| | | 16 | | { |
| | 1563076 | 17 | | var newArray = new BitArray(bitLength); |
| | | 18 | | |
| | 38072512 | 19 | | for (int i = 0; i < bitLength; i++) |
| | | 20 | | { |
| | 17473180 | 21 | | if (array.Length <= startIndex + i) |
| | | 22 | | { |
| | 0 | 23 | | newArray[i] = false; |
| | 0 | 24 | | } |
| | | 25 | | else |
| | | 26 | | { |
| | 17473180 | 27 | | bool bit = array.Get(startIndex + i); |
| | 17473180 | 28 | | newArray[i] = bit; |
| | | 29 | | } |
| | | 30 | | } |
| | | 31 | | |
| | 1563076 | 32 | | return newArray.ToNumeral(); |
| | | 33 | | } |
| | | 34 | | |
| | | 35 | | /// <summary> |
| | | 36 | | /// Convert BitArray to int |
| | | 37 | | /// </summary> |
| | | 38 | | /// <returns>Converted int</returns> |
| | | 39 | | public static int ToNumeral(this BitArray array) |
| | | 40 | | { |
| | 1563076 | 41 | | if (array == null) |
| | | 42 | | { |
| | 0 | 43 | | Debug.LogError("array is nothing."); |
| | 0 | 44 | | return 0; |
| | | 45 | | } |
| | 1563076 | 46 | | if (array.Length > 32) |
| | | 47 | | { |
| | 0 | 48 | | Debug.LogError("must be at most 32 bits long."); |
| | 0 | 49 | | return 0; |
| | | 50 | | } |
| | | 51 | | |
| | 1563076 | 52 | | var result = new int[1]; |
| | 1563076 | 53 | | array.CopyTo(result, 0); |
| | 1563076 | 54 | | return result[0]; |
| | | 55 | | } |
| | | 56 | | } |