/// <inheritdoc/>
public void Execute(int index)
{
FixedListInt32 neighborIndices = new FixedListInt32();
int nodeRow = index / scanSettings.gridWidth;
int topIndex = index + scanSettings.gridWidth;
int rightIndex = (index + 1) / scanSettings.gridWidth != nodeRow ? -1 : index + 1;
int botIndex = index - scanSettings.gridWidth;
int leftIndex = (index - 1) / scanSettings.gridWidth != nodeRow ? -1 : index - 1;
// the order is important, its used by some of the pathfinder algorithms
neighborIndices.AddNoResize(topIndex);
neighborIndices.AddNoResize(rightIndex);
neighborIndices.AddNoResize(botIndex);
neighborIndices.AddNoResize(leftIndex);
int numNeighbors = NodeNumNeighbors;
for (int i = 0; i < numNeighbors; ++i)
{
int neighborIndex = neighborIndices[i];
int neighborsArrayIndex = index * numNeighbors + i;
if (neighborIndex < 0 || neighborIndex >= nodesTransforms.Length)
{
// out of bounds
neighbors[neighborsArrayIndex] = new NodeNeighbor(-1, false);
continue;
}
bool canReachNeighbor = CanReachNeighbor(index, neighborIndex);
neighbors[neighborsArrayIndex] = new NodeNeighbor(neighborIndex, canReachNeighbor);
}
}
/// <inheritdoc/>
public void Execute(int index)
{
int numNeighbors = NodeNeighbors;
NativeArray <int> neighborIndices = new NativeArray <int>(numNeighbors, Allocator.Temp, NativeArrayOptions.UninitializedMemory);
int nodeRow = index / scanSettings.gridWidth;
int topIndex = index + scanSettings.gridWidth;
int rightIndex = (index + 1) / scanSettings.gridWidth != nodeRow ? -1 : index + 1;
int botIndex = index - scanSettings.gridWidth;
int leftIndex = (index - 1) / scanSettings.gridWidth != nodeRow ? -1 : index - 1;
// Note: the order is important, its used by some of the PathFinder algorithms
neighborIndices[0] = topIndex;
neighborIndices[1] = rightIndex;
neighborIndices[2] = botIndex;
neighborIndices[3] = leftIndex;
for (int i = 0; i < numNeighbors; i++)
{
int neighborIndex = neighborIndices[i];
int neighborsArrayIndex = index * numNeighbors + i;
if (neighborIndex < 0 || neighborIndex >= nodesTransforms.Length)
{
// out of bounds
neighbors[neighborsArrayIndex] = new NodeNeighbor(-1, false);
continue;
}
bool canReachNeighbor = CanReachNeighbor(index, neighborIndex);
neighbors[neighborsArrayIndex] = new NodeNeighbor(neighborIndex, canReachNeighbor);
}
neighborIndices.Dispose();
}