(svn r11399) -Feature(ette): transparency settings can now be saved and thus remembered.

-Codechange: Wrap all transparency settings in accessors, hiding the implementation
-Change: Clicking "transparent building" menu will toggle Houses And Trees only.  The other options can be used in the transparency gui.
Initial patch by Smatz (FS#1349), with some rework by BigBB and your humble servant.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/rail_cmd.cpp b/src/rail_cmd.cpp
index f0e16edf5..957c37b07 100644
--- a/src/rail_cmd.cpp
+++ b/src/rail_cmd.cpp
@@ -40,6 +40,7 @@
 #include "train.h"
 #include "misc/autoptr.hpp"
 #include "autoslope.h"
+#include "transparency.h"
 
 const byte _track_sloped_sprites[14] = {
 	14, 15, 22, 13,
@@ -1755,7 +1756,7 @@ default_waypoint:
 				image += relocation;
 			}
 
-			if (!HASBIT(_transparent_opt, TO_BUILDINGS) && HASBIT(image, PALETTE_MODIFIER_COLOR)) {
+			if (!IsTransparencySet(TO_BUILDINGS) && HASBIT(image, PALETTE_MODIFIER_COLOR)) {
 				pal = _drawtile_track_palette;
 			} else {
 				pal = dtss->pal;
@@ -1767,7 +1768,7 @@ default_waypoint:
 					ti->x + dtss->delta_x, ti->y + dtss->delta_y,
 					dtss->size_x, dtss->size_y,
 					dtss->size_z, ti->z + dtss->delta_z,
-					HASBIT(_transparent_opt, TO_BUILDINGS)
+					IsTransparencySet(TO_BUILDINGS)
 				);
 			} else {
 				AddChildSpriteScreen(image, pal, dtss->delta_x, dtss->delta_y);