private void SetChunkAt(GlobalPos pos, BasicChunk newChunk)
{
var x = pos.X >> 8;
var y = pos.Y >> 8;
var oldChunk = _chunks[ChunkIndex(x, y)];
oldChunk.UpdateNeighbors(newChunk);
_chunks[ChunkIndex(x, y)] = newChunk;
}
public ArrayChunk(BasicChunk init) : this((byte)init.Width, (byte)init.Height)
{
var index = 0;
for (var y = 0; y < Height; ++y)
{
for (var x = 0; x < Width; ++x)
{
_symbols[index++] = init.GetSymbol((byte)x, (byte)y);
}
}
Next = init.Next;
}
public ListChunk(BasicChunk init) : this((byte)init.Width, (byte)init.Height)
{
for (var y = 0; y < Height; ++y)
{
for (var x = 0; x < Width; ++x)
{
var owner = init.GetSymbol((byte)x, (byte)y);
if (owner != BasicChunk.NoOwner)
{
var pos = new LocalPos((byte)x, (byte)y);
_symbols[pos] = owner;
}
}
}
Next = init.Next;
}
public void UpdateNeighbors(BasicChunk newChunk)
{
if (Next.Up == this)
{
newChunk.Next.Up = newChunk;
}
else if (Next.Up != null)
{
Next.Up.Next.Down = newChunk;
}
if (Next.Down == this)
{
newChunk.Next.Down = newChunk;
}
else if (Next.Down != null)
{
Next.Down.Next.Up = newChunk;
}
if (Next.Left == this)
{
newChunk.Next.Left = newChunk;
}
else if (Next.Left != null)
{
Next.Left.Next.Right = newChunk;
}
if (Next.Right == this)
{
newChunk.Next.Right = newChunk;
}
else if (Next.Right != null)
{
Next.Right.Next.Left = newChunk;
}
//and detach myself
Next.Up = Next.Down = Next.Left = Next.Right = null;
}