Rename UI_UPDATE as MOVE_UI_UPDATE

All the other constants named UI_* are special key names that can be
passed to midend_process_key(), but UI_UPDATE is a special return value
from the back-end interpret_move() function instead.  This renaming
makes the distinction clear and provides a naming convention for future
special return values from interpret_move().

1 files changed, 2 insertions, 2 deletions

diff --git a/twiddle.c b/twiddle.c
index f7216df..23241da 100644
--- a/twiddle.c
+++ b/twiddle.c
@@ -676,7 +676,7 @@ static char *interpret_move(const game_state *state, game_ui *ui,
         if (button == CURSOR_DOWN && (ui->cur_y+n) < (h))
             ui->cur_y++;
         ui->cur_visible = true;
-        return UI_UPDATE;
+        return MOVE_UI_UPDATE;
     }
 
     if (button == LEFT_BUTTON || button == RIGHT_BUTTON) {
@@ -700,7 +700,7 @@ static char *interpret_move(const game_state *state, game_ui *ui,
             dir = (button == CURSOR_SELECT2) ? -1 : +1;
         } else {
             ui->cur_visible = true;
-            return UI_UPDATE;
+            return MOVE_UI_UPDATE;
         }
     } else if (button == 'a' || button == 'A' || button==MOD_NUM_KEYPAD+'7') {
         x = y = 0;