public void UpdateTileShape(int i, int j){
        if(tiles[i, j] == null) return;
        int hNE = 0;
        int hSE = 0;
        int hSW = 0;
        int hNW = 0;
        if(corners[i+1, j+1] != null)
            hNE = (int)(corners[i+1, j+1].transform.position.y / 1.5F);
        if(corners[i+1, j] != null)
            hSE = (int)(corners[i+1, j].transform.position.y / 1.5F);
        if(corners[i, j] != null)
            hSW = (int)(corners[i, j].transform.position.y / 1.5F);
        if(corners[i, j+1] != null)
            hNW = (int)(corners[i, j+1].transform.position.y / 1.5F);
        byte l = 1;
        if(hNE == hNW & hSE == hSW & (hNE - hSE) == 1){ // slope N
            l = 2;
        }else if(hNE == hSE & hSW == hNW & (hNE - hNW) == 1){ // slope E
            l = 3;
        }else if(hNE == hNW & hSE == hSW & (hSE - hNE) == 1){ // slope S
            l = 4;
        }else if(hNE == hSE & hSW == hNW & (hNW - hNE) == 1){ // slope W
            l = 5;
        }else if((hNE - hSE) == 1 & hSE == hNW & (hNE - hSW) == 2){ // rhombe NE
            l = 6;
        }else if((hSE - hSW) == 1 & hSW == hNE & (hSE - hNW) == 2){ // rhombe SE
            l = 7;
        }else if((hSW - hNW) == 1 & hNW == hSE & (hSW - hNE) == 2){ // rhombe SW
            l = 8;
        }else if((hNW - hSW) == 1 & hSW == hNE & (hNW - hSE) == 2){ // rhombe NW
            l = 9;
        }else if((hNE - hSE) == 1 & hSE == hSW & hSW == hNW){ // skew up NE
            l = 10;
        }else if((hSE - hSW) == 1 & hSW == hNW & hNW == hNE){ // skew up SE
            l = 11;
        }else if((hSW - hNW) == 1 & hNW == hNE & hNE == hSE){ // skew up SW
            l = 12;
        }else if((hNW - hNE) == 1 & hNE == hSE & hSE == hSW){ // skew up NW
            l = 13;
        }else if((hNE - hSE) == -1 & hSE == hSW & hSW == hNW){ // skew down NE
            l = 14;
        }else if((hSE - hSW) == -1 & hSW == hNW & hNW == hNE){ // skew down SE
            l = 15;
        }else if((hSW - hNW) == -1 & hNW == hNE & hNE == hSE){ // skew down SW
            l = 16;
        }else if((hNW - hNE) == -1 & hNE == hSE & hSE == hSW){ // skew down NW
            l = 17;
        }else if(hNE == hSW & hSE == hNW & (hNE - hSE) == 1){ // valley NE-SW
            l = 18;
        }else if(hNE == hSW & hSE == hNW & (hSE - hNE) == 1){ // valley NE-SW
            l = 19;
        }
        tiles[i, j].transform.position = new Vector3(i*3+1.5F, Math.Max(Math.Max(hNE, hSE), Math.Max(hSW, hNW))*1.5F, j*3+1.5F);
        tiles[i, j].GetComponent<Tile>().QN.GetComponent<MeshFilter>().mesh
            = tile_shapes[l].GetComponent<Tile>().QN.GetComponent<MeshFilter>().mesh;
        tiles[i, j].GetComponent<Tile>().QE.GetComponent<MeshFilter>().mesh
            = tile_shapes[l].GetComponent<Tile>().QE.GetComponent<MeshFilter>().mesh;
        tiles[i, j].GetComponent<Tile>().QS.GetComponent<MeshFilter>().mesh
            = tile_shapes[l].GetComponent<Tile>().QS.GetComponent<MeshFilter>().mesh;
        tiles[i, j].GetComponent<Tile>().QW.GetComponent<MeshFilter>().mesh
            = tile_shapes[l].GetComponent<Tile>().QW.GetComponent<MeshFilter>().mesh;
        tiles[i, j].GetComponent<Tile>().QN.transform.localPosition = tile_shapes[l].GetComponent<Tile>().QN.transform.localPosition;
        tiles[i, j].GetComponent<Tile>().QE.transform.localPosition = tile_shapes[l].GetComponent<Tile>().QE.transform.localPosition;
        tiles[i, j].GetComponent<Tile>().QS.transform.localPosition = tile_shapes[l].GetComponent<Tile>().QS.transform.localPosition;
        tiles[i, j].GetComponent<Tile>().QW.transform.localPosition = tile_shapes[l].GetComponent<Tile>().QW.transform.localPosition;
    }