public Chunk this[int X, int Y]
{
get {
int x = X % NUM_CHUNKS;
int y = Y % NUM_CHUNKS;
if (x < 0)
x += NUM_CHUNKS;
if (y < 0)
y += NUM_CHUNKS;
Chunk tr = _chunks [x] [y];
if (tr == null || tr.X != X || tr.Y != Y) {
float[][] temp = new float[Chunk.CHUNK_SIZE][];
for (int i = 0; i < temp.Length; ++i) {
temp [i] = new float[Chunk.CHUNK_SIZE];
}
for (int xx = 0; xx < Chunk.CHUNK_SIZE; ++xx) {
for (int yy = 0; yy < Chunk.CHUNK_SIZE; ++yy) {
int xxx = xx + X * Chunk.CHUNK_SIZE;
int yyy = yy + Y * Chunk.CHUNK_SIZE;
temp [xx] [yy] = _gen.GetHeight(xxx, yyy);
}
}
tr = new Chunk(X, Y, temp);
_chunks [x] [y] = tr;
}
return tr;
}
private set {
}
}
public ChunkCache(IGenerator Source)
{
_chunks = new Chunk[NUM_CHUNKS][];
for (int i = 0; i< _chunks.Length; ++i) {
_chunks [i] = new Chunk[NUM_CHUNKS];
}
_gen = Source;
}
