RectGrid.maskTilesAround

1 import std.array : empty;
2 import std.algorithm : equal;
3 
4 auto myGrid = rectGrid([
5   [ 00, 01, 02, 03, 04 ],
6   [ 10, 11, 12, 13, 14 ],
7   [ 20, 21, 22, 23, 24 ],
8 ]);
9 
10 uint[3][3] mask1 = [
11   [ 1, 1, 1 ],
12   [ 0, 0, 0 ],
13     [ 0, 0, 0 ],
14 ];
15 assert(myGrid.maskTilesAround(RowCol(0,0), mask1).empty);
16 assert(myGrid.maskTilesAround(RowCol(1,1), mask1).equal([00, 01, 02]));
17 assert(myGrid.maskTilesAround(RowCol(2,1), mask1).equal([10, 11, 12]));
18 assert(myGrid.maskTilesAround(RowCol(2,4), mask1).equal([13, 14]));
19 
20 auto mask2 = [
21   [ 0, 0, 1 ],
22   [ 0, 0, 1 ],
23   [ 1, 1, 1 ],
24 ];
25 assert(myGrid.maskTilesAround(RowCol(0,0), mask2).equal([01, 10, 11]));
26 assert(myGrid.maskTilesAround(RowCol(1,2), mask2).equal([03, 13, 21, 22, 23]));
27 assert(myGrid.maskTilesAround(RowCol(2,4), mask2).empty);
28 
29 auto mask3 = [
30   [ 0 , 0 , 1 , 0 , 0 ],
31   [ 1 , 0 , 1 , 0 , 1 ],
32   [ 0 , 0 , 0 , 0 , 0 ],
33 ];
34 assert(myGrid.maskTilesAround(RowCol(0,0), mask3).equal([00, 02]));
35 assert(myGrid.maskTilesAround(RowCol(1,2), mask3).equal([02, 10, 12, 14]));
36 
37 auto mask4 = [
38   [ 1 , 1 , 1 , 0 , 1 ],
39 ];
40 assert(myGrid.maskTilesAround(RowCol(0,0), mask4).equal([00, 02]));
41 assert(myGrid.maskTilesAround(RowCol(2,2), mask4).equal([20, 21, 22, 24]));
42 
43 auto mask5 = [
44   [ 1 ],
45   [ 1 ],
46   [ 0 ],
47   [ 1 ],
48   [ 1 ],
49 ];
50 assert(myGrid.maskTilesAround(RowCol(0,4), mask5).equal([14, 24]));
51 assert(myGrid.maskTilesAround(RowCol(1,1), mask5).equal([01, 21]));