X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=galaxies.c;h=f4f75c629c7889b506b48c7c36f087e939003a37;hb=a0a581c8b5422bf0c5ed3fde6aa25811e4eb89fc;hp=f2762656aac99a99f4a24ef539aa126a7cf2f619;hpb=bef1b2c59b443a2778a01e6c167e29ee9670603a;p=sgt-puzzles.git

diff --git a/galaxies.c b/galaxies.c
index f276265..f4f75c6 100644
--- a/galaxies.c
+++ b/galaxies.c
@@ -373,7 +373,9 @@ static void add_assoc_with_opposite(game_state *state, space *tile, space *dot)
     }
 
     sfree(colors);
+    remove_assoc_with_opposite(state, tile);
     add_assoc(state, tile, dot);
+    remove_assoc_with_opposite(state, opposite);
     add_assoc(state, opposite, dot);
 }
 
@@ -1299,6 +1301,8 @@ generate:
 
     game_update_dots(state);
 
+    if (state->ndots == 1) goto generate;
+
 #ifdef DEBUGGING
     {
         char *tmp = encode_game(state);
@@ -2589,7 +2593,7 @@ static char *interpret_move(const game_state *state, game_ui *ui,
         if (INUI(state, px, py)) {
             sp = &SPACE(state, px, py);
 
-            if (!(sp->flags & F_DOT) && !(sp->flags & F_TILE_ASSOC))
+            if (!(sp->flags & F_DOT))
 		sprintf(buf + strlen(buf), "%sA%d,%d,%d,%d",
 			sep, px, py, ui->dotx, ui->doty);
 	}
@@ -3263,7 +3267,7 @@ static void game_redraw(drawing *dr, game_drawstate *ds,
         for (x = 0; x < w; x++) {
             unsigned long flags = 0;
             int ddx = 0, ddy = 0;
-            space *sp;
+            space *sp, *opp;
             int dx, dy;
 
             /*
@@ -3301,6 +3305,11 @@ static void game_redraw(drawing *dr, game_drawstate *ds,
              * everything goes briefly back to background colour.
              */
             sp = &SPACE(state, x*2+1, y*2+1);
+            if (sp->flags & F_TILE_ASSOC) {
+                opp = tile_opposite(state, sp);
+            } else {
+                opp = NULL;
+            }
             if (ds->colour_scratch[y*w+x] && !flashing) {
                 flags |= (ds->colour_scratch[y*w+x] == 2 ?
                           DRAW_BLACK : DRAW_WHITE);
@@ -3316,7 +3325,9 @@ static void game_redraw(drawing *dr, game_drawstate *ds,
              */
             if ((sp->flags & F_TILE_ASSOC) && !ds->colour_scratch[y*w+x]) {
 		if (ui->dragging && ui->srcx == x*2+1 && ui->srcy == y*2+1) {
-		    /* don't do it */
+                    /* tile is the source, don't do it */
+                } else if (ui->dragging && opp && ui->srcx == opp->x && ui->srcy == opp->y) {
+                    /* opposite tile is the source, don't do it */
 		} else if (sp->doty != y*2+1 || sp->dotx != x*2+1) {
                     flags |= DRAW_ARROW;
                     ddy = sp->doty - (y*2+1);
@@ -3622,7 +3633,7 @@ static void game_print(drawing *dr, const game_state *state, int sz)
 const struct game thegame = {
     "Galaxies", "games.galaxies", "galaxies",
     default_params,
-    game_fetch_preset,
+    game_fetch_preset, NULL,
     decode_params,
     encode_params,
     free_params,