public WorldGrid()
{
_chunks = new Chunk[NumberOfChunksHigh * NumberOfChunksWide];
for (int y = 0; y < NumberOfChunksHigh; y++)
{
for (int x = 0; x < NumberOfChunksWide; x++)
{
var chunkCoordinate = new ChunkCoordinate(x, y);
this[chunkCoordinate] = ChunkLoader.LoadChunk(chunkCoordinate);
}
}
}
public static Chunk LoadChunk(ChunkCoordinate chunkCoordinate)
{
var chunk = new Chunk(chunkCoordinate);
// for (int y = 0; y < Chunk.NumberOfGridItemsHigh; y++)
// {
// for (int x = 0; x < Chunk.NumberOfGridItemsWide; x++)
// {
// var gridPosition = new GridCoordinate(chunkCoordinate, new InnerChunkGridCoordinate(x, y));
// var gridItem = CreateGridItemFor(gridPosition);
//
// chunk[gridPosition.InnerChunkGridCoordinate] = gridItem;
// }
// }
return(chunk);
}
/// <summary> /// Gets the chunk at the specified coordinate. /// </summary> public ref Chunk this[ChunkCoordinate coordinate] => ref _chunks[CalculateAbsoluteChunkIndex(coordinate.X, coordinate.Y)];
/// <summary>
/// Returns true if the given coordinate is a valid coordinate that can be used in this grid.
/// </summary>
public bool IsValid(ChunkCoordinate chunkCoordinate)
{
return(chunkCoordinate.X >= 0 && chunkCoordinate.X < NumberOfChunksWide &&
chunkCoordinate.Y >= 0 && chunkCoordinate.Y < NumberOfChunksWide);
}
/// <summary> Constructor. </summary>
/// <param name="position"> The position of the given chunk. </param>
public Chunk(ChunkCoordinate position)
{
Position = position;
_items = new UnsafeGridItemArray(NumberOfGridItemsWide * NumberOfGridItemsHigh);
AbsoluteIndex = WorldGrid.CalculateAbsoluteChunkIndex(Position.X, Position.Y);
}
public GridCoordinate(ChunkCoordinate chunkCoordinate, InnerChunkGridCoordinate innerCoordinate)
{
X = (chunkCoordinate.X << Chunk.XGridCoordinateToChunkCoordinateBitShift) + innerCoordinate.X;
Y = (chunkCoordinate.Y << Chunk.YGridCoordinateToChunkCoordinateBitShift) + innerCoordinate.Y;
}