public void addNoisePatchAt(NoiseCoord nco, NoisePatch _npatch) { m_noisePatches.Add(nco, _npatch); //domain limits if (Quad.Equal(this.domain, Quad.theErsatzNullQuad())) { //first time domain = new Quad(new PTwo(nco.x, nco.z), PTwo.PTwoOne()); } else { domain = domain.expandedToContainPoint(new PTwo(nco.x, nco.z)); } ChunkManager.debugLinesAssistant.debugQuad = domain; }