// XXX: Consider revising foreign lookup support /// <summary> /// Gets a <see cref="ChunkRef"/> for a chunk at the given local coordinates relative to this region. /// </summary> /// <param name="lcx">The local X-coordinate of a chunk relative to this region.</param> /// <param name="lcz">The local Z-coordinate of a chunk relative to this region.</param> /// <returns>A <see cref="ChunkRef"/> at the given local coordinates, or null if no chunk exists.</returns> /// <remarks>The local coordinates do not strictly need to be within the bounds of the region. If coordinates are detected /// as being out of bounds, the lookup will be delegated to the correct region and the lookup will be performed there /// instead. This allows any <see cref="Region"/> to perform a similar task to <see cref="BetaChunkManager"/>, but with a /// region-local frame of reference instead of a global frame of reference.</remarks> public ChunkRef GetChunkRef(int lcx, int lcz) { if (!LocalBoundsCheck(lcx, lcz)) { Region alt = GetForeignRegion(lcx, lcz); return((alt == null) ? null : alt.GetChunkRef(ForeignX(lcx), ForeignZ(lcz))); } int cx = lcx + _rx * XDIM; int cz = lcz + _rz * ZDIM; ChunkKey k = new ChunkKey(cx, cz); ChunkRef c = _cache.Fetch(k); if (c != null) { return(c); } c = ChunkRef.Create(this, lcx, lcz); if (c != null) { _cache.Insert(c); } return(c); }
/// <inheritdoc/> public ChunkRef SetChunk(int cx, int cz, Chunk chunk) { DeleteChunk(cx, cz); chunk.SetLocation(cx, cz); chunk.Save(GetChunkOutStream(cx, cz)); ChunkRef cr = ChunkRef.Create(this, cx, cz); ChunkKey k = new ChunkKey(cx, cz); _cache[k] = cr; return(cr); }
/// <inheritdoc/> public ChunkRef CreateChunk(int cx, int cz) { DeleteChunk(cx, cz); Chunk c = Chunk.Create(cx, cz); c.Save(GetChunkOutStream(cx, cz)); ChunkRef cr = ChunkRef.Create(this, cx, cz); ChunkKey k = new ChunkKey(cx, cz); _cache[k] = cr; return(cr); }
/// <summary> /// Saves an existing <see cref="Chunk"/> to the region at the given local coordinates. /// </summary> /// <param name="lcx">The local X-coordinate of a chunk relative to this region.</param> /// <param name="lcz">The local Z-coordinate of a chunk relative to this region.</param> /// <param name="chunk">A <see cref="Chunk"/> to save to the given location.</param> /// <returns>A <see cref="ChunkRef"/> represneting the <see cref="Chunk"/> at its new location.</returns> /// <remarks>If the local coordinates are out of bounds for this region, the action will be forwarded to the correct region /// transparently. The <see cref="Chunk"/>'s internal global coordinates will be updated to reflect the new location.</remarks> public ChunkRef SetChunk (int lcx, int lcz, Chunk chunk) { if (!LocalBoundsCheck(lcx, lcz)) { Region alt = GetForeignRegion(lcx, lcz); return (alt == null) ? null : alt.CreateChunk(ForeignX(lcx), ForeignZ(lcz)); } DeleteChunk(lcx, lcz); int cx = lcx + _rx * XDIM; int cz = lcz + _rz * ZDIM; chunk.SetLocation(cx, cz); chunk.Save(GetChunkOutStream(lcx, lcz)); ChunkRef cr = ChunkRef.Create(this, lcx, lcz); _cache.Insert(cr); return cr; }
/// <inheritdoc/> public ChunkRef GetChunkRef(int cx, int cz) { ChunkKey k = new ChunkKey(cx, cz); ChunkRef c = null; //WeakReference chunkref = null; if (_cache.TryGetValue(k, out c)) { return(c); } c = ChunkRef.Create(this, cx, cz); if (c != null) { _cache[k] = c; } return(c); }