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using UnityEngine;
using Unity.Burst;
using Unity.Collections;
using Unity.Jobs;
using Unity.Mathematics;
using Pathfinding.Jobs;
using UnityEngine.Assertions;
namespace Pathfinding.Graphs.Grid.Jobs {
/// <summary>
/// Copies 3D arrays with grid data from one shape to another.
///
/// Only the data for the nodes that exist in both buffers will be copied.
///
/// This essentially is several <see cref="JobCopyRectangle"/> jobs in one (to avoid scheduling overhead).
/// See that job for more documentation.
/// </summary>
[BurstCompile]
public struct JobCopyBuffers : IJob {
[ReadOnly]
[DisableUninitializedReadCheck]
public GridGraphNodeData input;
[WriteOnly]
public GridGraphNodeData output;
public IntBounds bounds;
public bool copyPenaltyAndTags;
public void Execute () {
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (!input.bounds.Contains(bounds)) throw new System.ArgumentException("Bounds are outside the source buffer");
if (!output.bounds.Contains(bounds)) throw new System.ArgumentException("Bounds are outside the destination buffer");
#endif
var inputSlice = new Slice3D(input.bounds, bounds);
var outputSlice = new Slice3D(output.bounds, bounds);
// Note: Having a single job that copies all of the buffers avoids a lot of scheduling overhead.
// We do miss out on parallelization, however for this job it is not that significant.
JobCopyRectangle<Vector3>.Copy(input.positions, output.positions, inputSlice, outputSlice);
JobCopyRectangle<float4>.Copy(input.normals, output.normals, inputSlice, outputSlice);
JobCopyRectangle<ulong>.Copy(input.connections, output.connections, inputSlice, outputSlice);
if (copyPenaltyAndTags) {
JobCopyRectangle<uint>.Copy(input.penalties, output.penalties, inputSlice, outputSlice);
JobCopyRectangle<int>.Copy(input.tags, output.tags, inputSlice, outputSlice);
}
JobCopyRectangle<bool>.Copy(input.walkable, output.walkable, inputSlice, outputSlice);
JobCopyRectangle<bool>.Copy(input.walkableWithErosion, output.walkableWithErosion, inputSlice, outputSlice);
}
}
}
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