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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Text;
  5. using UnityEngine;
  6. using UltraTerrain.Common.Morton;
  7.  
  8. namespace UltraTerrain.Common.Morton
  9. {
  10.     public static class Arithmetic
  11.     {
  12.         public const uint FullMask = 0xFFFFFFFF;
  13.         public static uint SignMask = "10.000.000.000.000.000.000.000.000.000.000".FromBinary();// 0x80000000;
  14.         public static uint XMask = "01.001.001.001.001.001.001.001.001.001.001".FromBinary(); //0x9249249;
  15.         public static uint YMask = "10.010.010.010.010.010.010.010.010.010.010".FromBinary(); //0x12492492;
  16.         public static uint ZMask = "00.100.100.100.100.100.100.100.100.100.100".FromBinary(); //0x24924924;
  17.  
  18.         public static uint XMaskWithSign = XMask | SignMask;
  19.         public static uint YMaskWithSign = YMask | SignMask;
  20.         public static uint ZMaskWithSign = ZMask | SignMask;
  21.  
  22.         public static uint AddMorton(this uint a, uint b)
  23.         {
  24.             var cx = ((a | ~XMask) + (b & XMask)) & XMask;
  25.             var cy = ((a | ~YMask) + (b & YMask)) & YMask;
  26.             var cz = ((a | ~ZMask) + (b & ZMask)) & ZMask;
  27.  
  28.             var c = cx | cy | cz;
  29.             return c;
  30.         }
  31.  
  32.         public static uint SubtractMorton(this uint a, uint b)
  33.         {
  34.             var cx = ((a & XMaskWithSign) - (b & XMask)) & XMaskWithSign;
  35.             var cy = ((a & YMaskWithSign) - (b & YMask)) & YMaskWithSign;
  36.             var cz = ((a & ZMaskWithSign) - (b & ZMask)) & ZMaskWithSign;
  37.  
  38.             var c = cx | cy | cz;
  39.             return c;
  40.         }
  41.     }
  42. }
  43.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin 
Standard input is empty
compilation info 
prog.cs(5,7): error CS0246: The type or namespace name `UnityEngine' could not be found. Are you missing an assembly reference?
Compilation failed: 1 error(s), 0 warnings
stdout 
Standard output is empty
https://ideone.com/0xXccf
language:
C# (gmcs 5.20.1)
created:
8 years ago
visibility:
secret

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