33 lines
1.1 KiB
C#
33 lines
1.1 KiB
C#
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using Unity.Burst;
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using Unity.Collections.LowLevel.Unsafe;
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using Unity.Jobs;
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using UnityEngine;
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namespace Pathfinding.Graphs.Navmesh.Jobs {
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/// <summary>
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/// Transforms vertices from voxel coordinates to tile coordinates.
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///
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/// This essentially constitutes multiplying the vertices by the <see cref="matrix"/>.
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///
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/// Note: The input space is in raw voxel coordinates, the output space is in tile coordinates stored in millimeters (as is typical for the Int3 struct. See <see cref="Int3.Precision"/>).
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/// </summary>
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[BurstCompile(FloatMode = FloatMode.Fast)]
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public struct JobTransformTileCoordinates : IJob {
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/// <summary>Element type Int3</summary>
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public unsafe UnsafeAppendBuffer* vertices;
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public Matrix4x4 matrix;
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public void Execute () {
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unsafe {
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int vertexCount = vertices->Length / UnsafeUtility.SizeOf<Int3>();
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for (int i = 0; i < vertexCount; i++) {
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// Transform from voxel indices to a proper Int3 coordinate, then convert it to a Vector3 float coordinate
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var vPtr1 = (Int3*)vertices->Ptr + i;
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var p = new Vector3(vPtr1->x, vPtr1->y, vPtr1->z);
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*vPtr1 = (Int3)matrix.MultiplyPoint3x4(p);
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}
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}
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}
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}
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}
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