(svn r5352) -Fix: Return accurate slope information for tunnels and bridges to fix several foundation graphics glitches
--- a/tunnelbridge_cmd.c Sat Jun 24 22:19:28 2006 +0000
+++ b/tunnelbridge_cmd.c Sat Jun 24 22:52:24 2006 +0000
@@ -1146,8 +1146,29 @@
static Slope GetSlopeTileh_TunnelBridge(TileIndex tile, Slope tileh)
{
- // not accurate, but good enough for slope graphics drawing
- return SLOPE_FLAT;
+ uint f;
+
+ if (IsTunnel(tile)) {
+ return tileh;
+ } else {
+ if (IsBridgeRamp(tile)) {
+ if (HASBIT(BRIDGE_NO_FOUNDATION, tileh)) {
+ return tileh;
+ } else {
+ f = GetBridgeFoundation(tileh, DiagDirToAxis(GetBridgeRampDirection(tile)));
+ }
+ } else {
+ if (IsTransportUnderBridge(tile)) {
+ f = _bridge_foundations[GetBridgeAxis(tile)][tileh];
+ } else {
+ return tileh;
+ }
+ }
+ }
+
+ if (f == 0) return tileh;
+ if (f < 15) return SLOPE_FLAT;
+ return _inclined_tileh[f - 15];
}