Bugs fixing, finalization of rules in french+english

[vchess.git] / public / javascripts / utils / printDiagram.js

diff --git a/public/javascripts/utils/printDiagram.js b/public/javascripts/utils/printDiagram.js
index b7282fe..4727430 100644 (file)
--- a/public/javascripts/utils/printDiagram.js
+++ b/public/javascripts/utils/printDiagram.js
@@ -42,6 +42,32 @@ function getDiagram(args)
                                        shadowArray[i][colnum] = true;
                                continue;
                        }
+                       if (squares[i].indexOf("-") >= 0)
+                       {
+                               // Shadow a range of squares, horizontally or vertically
+                               const firstLastSq = squares[i].split("-");
+                               const range =
+                               [
+                                       V.SquareToCoords(firstLastSq[0]),
+                                       V.SquareToCoords(firstLastSq[1])
+                               ];
+                               const step =
+                               [
+                                       range[1].x == range[0].x
+                                               ? 0
+                                               : (range[1].x - range[0].x) / Math.abs(range[1].x - range[0].x),
+                                       range[1].y == range[0].y
+                                               ? 0
+                                               : (range[1].y - range[0].y) / Math.abs(range[1].y - range[0].y)
+                               ];
+                               // Convention: range always from smaller to larger number
+                               for (let x=range[0].x, y=range[0].y; x <= range[1].x && y <= range[1].y;
+                                       x += step[0], y += step[1])
+                               {
+                                       shadowArray[x][y] = true;
+                               }
+                               continue;
+                       }
                        // Shadow just one square:
                        const coords = V.SquareToCoords(squares[i]);
                        shadowArray[coords.x][coords.y] = true;