(svn r3696) Add functions to turn a tile into a normal rail tile/depot/waypoint. This is just a tiny step, the rail code needs way more love and caring

1 files changed, 49 insertions, 0 deletions

diff --git a/rail_map.h b/rail_map.h
new file mode 100644
index 000000000..35a0ddfd3
--- /dev/null
+++ b/rail_map.h
@@ -0,0 +1,49 @@
+/* $Id$ */
+
+#ifndef RAIL_MAP_H
+#define RAIL_MAP_H
+
+#include "rail.h"
+#include "tile.h"
+#include "waypoint.h"
+
+
+static inline TrackBits GetRailWaypointBits(TileIndex t)
+{
+	return _m[t].m5 & RAIL_WAYPOINT_TRACK_MASK ? TRACK_BIT_DIAG2 : TRACK_BIT_DIAG1;
+}
+
+
+static inline void MakeRailNormal(TileIndex t, Owner o, TrackBits b, RailType r)
+{
+	SetTileType(t, MP_RAILWAY);
+	SetTileOwner(t, o);
+	_m[t].m2 = 0;
+	_m[t].m3 = r;
+	_m[t].m4 = 0;
+	_m[t].m5 = RAIL_TYPE_NORMAL | b;
+}
+
+
+static inline void MakeRailDepot(TileIndex t, Owner o, DiagDirection d, RailType r)
+{
+	SetTileType(t, MP_RAILWAY);
+	SetTileOwner(t, o);
+	_m[t].m2 = 0;
+	_m[t].m3 = r;
+	_m[t].m4 = 0;
+	_m[t].m5 = RAIL_TYPE_DEPOT_WAYPOINT | RAIL_SUBTYPE_DEPOT | d;
+}
+
+
+static inline void MakeRailWaypoint(TileIndex t, Owner o, Axis a, RailType r, uint index)
+{
+	SetTileType(t, MP_RAILWAY);
+	SetTileOwner(t, o);
+	_m[t].m2 = index;
+	_m[t].m3 = r;
+	_m[t].m4 = 0;
+	_m[t].m5 = RAIL_TYPE_DEPOT_WAYPOINT | RAIL_SUBTYPE_WAYPOINT | a;
+}
+
+#endif