shithub: puzzles

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Fix trivial UI glitch involving clicking on the border outside the
grid. I'm really starting to get annoyed by the default round-
towards-zero behaviour of C integer division.

[originally from svn r5681]

--- a/solo.c

+++ b/solo.c

@@ -1209,8 +1209,8 @@

     int tx, ty;

     game_state *ret;

-    tx = (x - BORDER) / TILE_SIZE;

-    ty = (y - BORDER) / TILE_SIZE;

+    tx = (x + TILE_SIZE - BORDER) / TILE_SIZE - 1;

+    ty = (y + TILE_SIZE - BORDER) / TILE_SIZE - 1;

     if (tx >= 0 && tx < cr && ty >= 0 && ty < cr && button == LEFT_BUTTON) {

 	if (tx == ui->hx && ty == ui->hy) {