// public static void SwitchCells(ChunkWithNeighbors chunkWithNeighbors, int2 absoluteOldCellPosition, int2 absoluteNewCellPosition, Cell cell)
// {
// if (GetRelativeCellPosition(chunkWithNeighbors, absoluteNewCellPosition, out var newChunkPosition,
// out var newCellPosition))
// {
// var oldCellChunk = chunkWithNeighbors.Chunk;
// var newCellChunk = chunkWithNeighbors.ChunkFromPosition(newChunkPosition);
//
// var existingCell = oldCellChunk.GetCell(oldCellPosition);
//
// oldCellChunk.SetCell(oldCellPosition, existingCell);
// newCellChunk.SetCell(newCellPosition, cell);
// }
// }
//
public static bool SwitchCells(ValueWithNeighbors <Chunk> chunkWithNeighbors, int2 absoluteCurrentCellPosition,
int2 offset)
{
if (!GetRelativeCellPosition(chunkWithNeighbors, absoluteCurrentCellPosition, out var oldChunkPosition,
out var oldCellPosition))
{
return(false);
}
if (!GetRelativeCellPosition(chunkWithNeighbors, absoluteCurrentCellPosition + offset, out var newChunkPosition,
out var newCellPosition))
{
return(false);
}
var oldCellChunk = chunkWithNeighbors.Value;
var newCellChunk = chunkWithNeighbors.ChunkFromPosition(newChunkPosition);
if (newCellChunk.IsOutOfBounds)
{
return(false);
}
var oldCell = oldCellChunk.GetCell(oldCellPosition);
var newCell = newCellChunk.GetCell(newCellPosition);
oldCellChunk.SetCell(oldCellPosition, newCell);
newCellChunk.SetCell(newCellPosition, oldCell);
return(true);
}
// public static void SetAndSwitchCell(ChunkWithNeighbors chunkWithNeighbors, int2 oldCellPosition, int2 absoluteNewCellPosition, Cell cell)
// {
// if (GetRelativeCellPosition(chunkWithNeighbors, absoluteNewCellPosition, out var newChunkPosition,
// out var newCellPosition))
// {
// var oldCellChunk = chunkWithNeighbors.Chunk;
// var newCellChunk = chunkWithNeighbors.ChunkFromPosition(newChunkPosition);
//
// var existingCell = oldCellChunk.GetCell(oldCellPosition);
//
// oldCellChunk.SetCell(oldCellPosition, existingCell);
// newCellChunk.SetCell(newCellPosition, cell);
// }
// }
// public static bool MoveToIfEmpty(ChunkWithNeighbors chunkWithNeighbors, int2 oldCellPosition, int2 newCellPosition, Cell cell)
// {
// if (GetCellAtPosition(chunkWithNeighbors, newCellPosition, out var neighborChunkPosition, out var neighborCellPosition))
// {
// var neighborChunk = chunkWithNeighbors.ChunkFromPosition(neighborChunkPosition);
// var neighborCell = neighborChunk.GetCell(oldCellPosition);
//
// if (neighborCell.type == CellType.None)
// {
// chunkWithNeighbors.Chunk.SetCell(newCellPosition, default);
// neighborChunk.SetCell(neighborCellPosition, cell);
//
// return true;
// }
// }
//
// return false;
// }
// public static bool SwitchCellsIfTargetEmpty(ChunkWithNeighbors chunkWithNeighbors, int2 absoluteCurrentCellPosition,
// int2 absoluteTargetCellPosition)
// {
// if (GetCellAtPosition(chunkWithNeighbors, absoluteCurrentCellPosition, out var oldChunkPosition,
// out var oldCellPosition))
// {
// if (GetCellAtPosition(chunkWithNeighbors, absoluteTargetCellPosition, out var newChunkPosition,
// out var newCellPosition))
// {
// var oldCellChunk = chunkWithNeighbors.Chunk;
// var newCellChunk = chunkWithNeighbors.ChunkFromPosition(newChunkPosition);
//
// var oldCell = oldCellChunk.GetCell(oldCellPosition);
// var newCell = newCellChunk.GetCell(newCellPosition);
//
// if (newCell.type == CellType.None)
// {
// oldCellChunk.SetCell(oldCellPosition, newCell);
// newCellChunk.SetCell(newCellPosition, oldCell);
//
// return true;
// }
// }
// }
// }
public static bool SwitchCellsIfTargetEmpty(ValueWithNeighbors <Chunk> chunkWithNeighbors, int2 absoluteCurrentCellPosition, int2 absoluteTargetCellPosition)
{
if (GetRelativeCellPosition(chunkWithNeighbors, absoluteCurrentCellPosition, out var oldChunkPosition, out var oldCellPosition))
{
if (GetRelativeCellPosition(chunkWithNeighbors, absoluteTargetCellPosition, out var newChunkPosition, out var newCellPosition))
{
var oldCellChunk = chunkWithNeighbors.Value;
var newCellChunk = chunkWithNeighbors.ChunkFromPosition(newChunkPosition);
if (newCellChunk.IsOutOfBounds)
{
return(false);
}
var oldCell = oldCellChunk.GetCell(oldCellPosition);
var newCell = newCellChunk.GetCell(newCellPosition);
if (newCell.type == CellType.None)
{
oldCellChunk.SetCell(oldCellPosition, newCell);
newCellChunk.SetCell(newCellPosition, oldCell);
return(true);
}
}
}
return(false);
}
public static Cell?GetCellAtPosition(ValueWithNeighbors <Chunk> chunkWithNeighbors, int2 cellPosition)
{
if (GetRelativeCellPosition(chunkWithNeighbors, cellPosition, out var relativeChunkPosition, out var relativeCellPosition))
{
return(chunkWithNeighbors.ChunkFromPosition(relativeChunkPosition).GetCell(relativeCellPosition));
}
return(null);
}
public static bool GetRelativeCellPosition(ValueWithNeighbors <Chunk> chunkWithNeighbors, int2 cellPosition, out int2 relativeChunkPosition, out int2 relativeCellPosition)
{
var chunkOffset = math.int2(math.floor(math.float2(cellPosition) / math.float2(chunkSize, chunkSize)));
var relativeTargetCell = (cellPosition - (chunkOffset * chunkSize));
var neighborChunk = chunkWithNeighbors.ChunkFromPosition(chunkOffset);
if (neighborChunk.IsOutOfBounds)
{
relativeChunkPosition = default;
relativeCellPosition = default;
return(false);
}
relativeChunkPosition = chunkOffset;
relativeCellPosition = relativeTargetCell;
return(true);
}