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, 4 insertions, 4 deletions

diff --git a/rect.c b/rect.c
index 2c41db8..a20cf18 100644
--- a/rect.c
+++ b/rect.c
@@ -2418,7 +2418,7 @@ static char *interpret_move(const game_state *from, game_ui *ui,
         move_cursor(button, &ui->cur_x, &ui->cur_y, from->w, from->h, false);
         ui->cur_visible = true;
         active = true;
-        if (!ui->cur_dragging) return UI_UPDATE;
+        if (!ui->cur_dragging) return MOVE_UI_UPDATE;
         coord_round((float)ui->cur_x + 0.5F, (float)ui->cur_y + 0.5F, &xc, &yc);
     } else if (IS_CURSOR_SELECT(button)) {
         if (ui->drag_start_x >= 0 && !ui->cur_dragging) {
@@ -2431,7 +2431,7 @@ static char *interpret_move(const game_state *from, game_ui *ui,
         if (!ui->cur_visible) {
             assert(!ui->cur_dragging);
             ui->cur_visible = true;
-            return UI_UPDATE;
+            return MOVE_UI_UPDATE;
         }
         coord_round((float)ui->cur_x + 0.5F, (float)ui->cur_y + 0.5F, &xc, &yc);
         erasing = (button == CURSOR_SELECT2);
@@ -2452,7 +2452,7 @@ static char *interpret_move(const game_state *from, game_ui *ui,
             reset_ui(ui); /* cancel keyboard dragging */
             ui->cur_dragging = false;
         }
-        return UI_UPDATE;
+        return MOVE_UI_UPDATE;
     } else if (button != LEFT_DRAG && button != RIGHT_DRAG) {
         return NULL;
     }
@@ -2536,7 +2536,7 @@ static char *interpret_move(const game_state *from, game_ui *ui,
     if (ret)
 	return ret;		       /* a move has been made */
     else if (active)
-        return UI_UPDATE;
+        return MOVE_UI_UPDATE;
     else
 	return NULL;
 }