Fix warnings generated by gcc 4.6.0 about variables set but not

thereafter read. Most of these changes are just removal of pointless
stuff or trivial reorganisations; one change is actually substantive,
and fixes a bug in Keen's clue selection (the variable 'bad' was
unreferenced not because I shouldn't have set it, but because I
_should_ have referenced it!).

[originally from svn r9164]

1 files changed, 2 insertions, 5 deletions

diff --git a/netslide.c b/netslide.c
index 436b786..27a3934 100644
--- a/netslide.c
+++ b/netslide.c
@@ -1059,7 +1059,7 @@ static char *interpret_move(game_state *state, game_ui *ui,
 			    game_drawstate *ds, int x, int y, int button)
 {
     int cx, cy;
-    int n, dx, dy;
+    int dx, dy;
     char buf[80];
 
     button &= ~MOD_MASK;
@@ -1101,7 +1101,6 @@ static char *interpret_move(game_state *state, game_ui *ui,
         if (cx == -1) dx = +1;
         else if (cx == state->width) dx = -1;
         else return NULL;
-        n = state->width;
         dy = 0;
     }
     else if (cx >= 0 && cx < state->width && cx != state->cx)
@@ -1109,7 +1108,6 @@ static char *interpret_move(game_state *state, game_ui *ui,
         if (cy == -1) dy = +1;
         else if (cy == state->height) dy = -1;
         else return NULL;
-        n = state->height;
         dx = 0;
     }
     else
@@ -1585,7 +1583,7 @@ static void draw_arrow_for_cursor(drawing *dr, game_drawstate *ds,
 static void game_redraw(drawing *dr, game_drawstate *ds, game_state *oldstate,
                  game_state *state, int dir, game_ui *ui, float t, float ft)
 {
-    int x, y, tx, ty, frame;
+    int x, y, frame;
     unsigned char *active;
     float xshift = 0.0;
     float yshift = 0.0;
@@ -1677,7 +1675,6 @@ static void game_redraw(drawing *dr, game_drawstate *ds, game_state *oldstate,
         t = ANIM_TIME - t;
     }
 
-    tx = ty = -1;
     if (oldstate && (t < ANIM_TIME)) {
         /*
          * We're animating a slide, of row/column number