Cleanup: remove the `just_used_solve' field from a number of games

which didn't actually need it. It was originally introduced in
Fifteen to suppress animation on Solve moves, but midend.c now does
that centrally unless the game specifically instructs it otherwise.
Therefore, just_used_solve is obsolete in all games which previously
used it. (Mines was even worse: it scrupulously maintained the
correctness of the field but never used it!)

Untangle is exempt from this cleanup: its `just_solved' field is
used to change the _length_ of the animation on Solve moves, not to
suppress it entirely, and so it has to stay.

[originally from svn r6419]

1 files changed, 3 insertions, 10 deletions

diff --git a/fifteen.c b/fifteen.c
index d438eb5..c4b0add 100644
--- a/fifteen.c
+++ b/fifteen.c
@@ -42,7 +42,6 @@ struct game_state {
     int *tiles;
     int gap_pos;
     int completed;
-    int just_used_solve;	       /* used to suppress undo animation */
     int used_solve;		       /* used to suppress completion flash */
     int movecount;
 };
@@ -345,7 +344,7 @@ static game_state *new_game(midend *me, game_params *params, char *desc)
     assert(state->tiles[state->gap_pos] == 0);
 
     state->completed = state->movecount = 0;
-    state->used_solve = state->just_used_solve = FALSE;
+    state->used_solve = FALSE;
 
     return state;
 }
@@ -363,7 +362,6 @@ static game_state *dup_game(game_state *state)
     ret->completed = state->completed;
     ret->movecount = state->movecount;
     ret->used_solve = state->used_solve;
-    ret->just_used_solve = state->just_used_solve;
 
     return ret;
 }
@@ -509,7 +507,7 @@ static game_state *execute_move(game_state *from, char *move)
 	for (i = 0; i < ret->n; i++)
 	    ret->tiles[i] = (i+1) % ret->n;
 	ret->gap_pos = ret->n-1;
-	ret->used_solve = ret->just_used_solve = TRUE;
+	ret->used_solve = TRUE;
 	ret->completed = ret->movecount = 1;
 
 	return ret;
@@ -533,7 +531,6 @@ static game_state *execute_move(game_state *from, char *move)
     up = C(from, ux, uy);
 
     ret = dup_game(from);
-    ret->just_used_solve = FALSE;      /* zero this in a hurry */
 
     ret->gap_pos = C(from, dx, dy);
     assert(ret->gap_pos >= 0 && ret->gap_pos < ret->n);
@@ -810,11 +807,7 @@ static void game_redraw(drawing *dr, game_drawstate *ds, game_state *oldstate,
 static float game_anim_length(game_state *oldstate,
 			      game_state *newstate, int dir, game_ui *ui)
 {
-    if ((dir > 0 && newstate->just_used_solve) ||
-	(dir < 0 && oldstate->just_used_solve))
-	return 0.0F;
-    else
-	return ANIM_TIME;
+    return ANIM_TIME;
 }
 
 static float game_flash_length(game_state *oldstate,