The printing function in Bridges was unable to cope with more than two

bridges between a pair of islands! Good grief. How did we never spot
that before?

[originally from svn r9083]

diff --git a/bridges.c b/bridges.c
index 4219df4c0d07a22d083d2de2ce2170c3a35dee56..f8e9e768fa2820ff7fd6316d943d3f2c0a2ce2a2 100644 (file)
--- a/bridges.c
+++ b/bridges.c
@@ -2735,7 +2735,7 @@ static void game_print(drawing *dr, game_state *state, int ts)
     int ink = print_mono_colour(dr, 0);
     int paper = print_mono_colour(dr, 1);
     int x, y, cx, cy, i, nl;
-    int loff = ts/8;
+    int loff;
     grid_type grid;
 
     /* Ick: fake up `ds->tilesize' for macro expansion purposes */
@@ -2745,6 +2745,7 @@ static void game_print(drawing *dr, game_state *state, int ts)
     /* I don't think this wants a border. */
 
     /* Bridges */
+    loff = ts / (8 * sqrt((state->params.maxb - 1)));
     print_line_width(dr, ts / 12);
     for (x = 0; x < state->w; x++) {
         for (y = 0; y < state->h; y++) {
@@ -2754,20 +2755,14 @@ static void game_print(drawing *dr, game_state *state, int ts)
 
             if (grid & G_ISLAND) continue;
             if (grid & G_LINEV) {
-                if (nl > 1) {
-                    draw_line(dr, cx+ts/2-loff, cy, cx+ts/2-loff, cy+ts, ink);
-                    draw_line(dr, cx+ts/2+loff, cy, cx+ts/2+loff, cy+ts, ink);
-                } else {
-                    draw_line(dr, cx+ts/2,      cy, cx+ts/2,      cy+ts, ink);
-                }
+                for (i = 0; i < nl; i++)
+                    draw_line(dr, cx+ts/2+(2*i-nl+1)*loff, cy,
+                              cx+ts/2+(2*i-nl+1)*loff, cy+ts, ink);
             }
             if (grid & G_LINEH) {
-                if (nl > 1) {
-                    draw_line(dr, cx, cy+ts/2-loff, cx+ts, cy+ts/2-loff, ink);
-                    draw_line(dr, cx, cy+ts/2+loff, cx+ts, cy+ts/2+loff, ink);
-                } else {
-                    draw_line(dr, cx, cy+ts/2,      cx+ts,      cy+ts/2, ink);
-                }
+                for (i = 0; i < nl; i++)
+                    draw_line(dr, cx, cy+ts/2+(2*i-nl+1)*loff,
+                              cx+ts, cy+ts/2+(2*i-nl+1)*loff, ink);
             }
         }
     }