// Loads cheap snapshot of chunk
public void Snapshot()
{
if (state >= ChunkState.SNAPSHOTTED)
{
return;
}
Vector2Int center = bounds.GetCenter();
Vector2Int localCenter = GetLocalCoord(center);
terrainSnapshot = TerrainGen.GenerateTerrainAt(center.x, center.y);
terrainHeightMap[localCenter.x, localCenter.y] = terrainSnapshot;
densitySnapshot = TerrainGen.CalculateDensityAtChunk(center);//CalculateDensityAt(center.x, center.y);
densityMap[localCenter.x, localCenter.y] = densitySnapshot;
state = ChunkState.SNAPSHOTTED;
}