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BobSong
2025-11-10 00:08:26 +08:00
parent 4059c207c0
commit 76f80db694
2814 changed files with 436400 additions and 178 deletions
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76
Assets/Obi/Scripts/Common/Backends/Burst/DataStructures/GridHash.cs Normal file
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#if (OBI_BURST && OBI_MATHEMATICS && OBI_COLLECTIONS)
using Unity.Mathematics;
namespace Obi
{
public struct GridHash
{
public readonly static int3[] cellOffsets3D =
{
new int3(1,0,0),
new int3(0,1,0),
new int3(1,1,0),
new int3(0,0,1),
new int3(1,0,1),
new int3(0,1,1),
new int3(1,1,1),
new int3(-1,1,0),
new int3(-1,-1,1),
new int3(0,-1,1),
new int3(1,-1,1),
new int3(-1,0,1),
new int3(-1,1,1)
};
public readonly static int3[] cellOffsets =
{
new int3(0, 0, 0),
new int3(-1, 0, 0),
new int3(0, -1, 0),
new int3(0, 0, -1),
new int3(1, 0, 0),
new int3(0, 1, 0),
new int3(0, 0, 1)
};
public readonly static int2[] cell2DOffsets =
{
new int2(0, 0),
new int2(-1, 0),
new int2(0, -1),
new int2(1, 0),
new int2(0, 1),
};
public static int3 Quantize(float3 v, float cellSize)
{
return new int3(math.floor(v / cellSize));
}
public static int2 Quantize(float2 v, float cellSize)
{
return new int2(math.floor(v / cellSize));
}
public static int Hash(in int4 cellIndex, int maxCells)
{
const int p1 = 73856093;
const int p2 = 19349663;
const int p3 = 83492791;
const int p4 = 10380569;
return math.abs(p1 * cellIndex.x ^ p2 * cellIndex.y ^ p3 * cellIndex.z ^ p4 * cellIndex.w) % maxCells;
}
public static int Hash(in int3 cellIndex, int maxCells)
{
const int p1 = 73856093;
const int p2 = 19349663;
const int p3 = 83492791;
return ((p1 * cellIndex.x ^ p2 * cellIndex.y ^ p3 * cellIndex.z) & 0x7fffffff) % maxCells;
/*var index = cellIndex - new int3(-32, -32, -32);
return index.x + index.y * 64 + index.z * 64 * 64;*/
}
}
}
#endif