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-rw-r--r--Makefile1
-rw-r--r--direction.h6
-rw-r--r--npf.c5
-rw-r--r--pathfind.c18
-rw-r--r--rail_cmd.c11
-rw-r--r--road_map.c5
-rw-r--r--town_cmd.c9
-rw-r--r--train_cmd.c5
-rw-r--r--tunnel_map.c25
-rw-r--r--tunnel_map.h47
-rw-r--r--tunnelbridge_cmd.c46
11 files changed, 132 insertions, 46 deletions
diff --git a/Makefile b/Makefile
index 0bb437215..59079a8b4 100644
--- a/Makefile
+++ b/Makefile
@@ -700,6 +700,7 @@ SRCS += town_gui.c
SRCS += train_cmd.c
SRCS += train_gui.c
SRCS += tree_cmd.c
+SRCS += tunnel_map.c
SRCS += tunnelbridge_cmd.c
SRCS += unmovable_cmd.c
SRCS += vehicle.c
diff --git a/direction.h b/direction.h
index 33c465aac..fb99071f3 100644
--- a/direction.h
+++ b/direction.h
@@ -52,4 +52,10 @@ typedef enum Axis {
AXIS_Y = 1
} Axis;
+
+static inline Axis DiagDirToAxis(DiagDirection d)
+{
+ return (Axis)(d & 1);
+}
+
#endif
diff --git a/npf.c b/npf.c
index abefe239d..18818f679 100644
--- a/npf.c
+++ b/npf.c
@@ -11,6 +11,7 @@
#include "station.h"
#include "tile.h"
#include "depot.h"
+#include "tunnel_map.h"
static AyStar _npf_aystar;
@@ -162,7 +163,7 @@ static uint NPFTunnelCost(AyStarNode* current)
{
DiagDirection exitdir = TrackdirToExitdir((Trackdir)current->direction);
TileIndex tile = current->tile;
- if ((DiagDirection)GB(_m[tile].m5, 0, 2) == ReverseDiagDir(exitdir)) {
+ if (GetTunnelDirection(tile) == ReverseDiagDir(exitdir)) {
/* We just popped out if this tunnel, since were
* facing the tunnel exit */
FindLengthOfTunnelResult flotr;
@@ -519,7 +520,7 @@ static void NPFFollowTrack(AyStar* aystar, OpenListNode* current)
/* Find dest tile */
if (IsTileType(src_tile, MP_TUNNELBRIDGE) &&
GB(_m[src_tile].m5, 4, 4) == 0 &&
- (DiagDirection)GB(_m[src_tile].m5, 0, 2) == src_exitdir) {
+ GetTunnelDirection(src_tile) == src_exitdir) {
/* This is a tunnel. We know this tunnel is our type,
* otherwise we wouldn't have got here. It is also facing us,
* so we should skip it's body */
diff --git a/pathfind.c b/pathfind.c
index 8e0621bd9..b0518f6fd 100644
--- a/pathfind.c
+++ b/pathfind.c
@@ -8,6 +8,7 @@
#include "pathfind.h"
#include "rail.h"
#include "debug.h"
+#include "tunnel_map.h"
#include "variables.h"
// remember which tiles we have already visited so we don't visit them again.
@@ -232,8 +233,8 @@ FindLengthOfTunnelResult FindLengthOfTunnel(TileIndex tile, uint direction)
if (IsTileType(tile, MP_TUNNELBRIDGE) &&
GB(_m[tile].m5, 4, 4) == 0 && // tunnel entrance/exit
- // GB(_m[tile].m5, 2, 2) == type && // rail/road-tunnel <-- This is not necesary to check, right?
- (GB(_m[tile].m5, 0, 2) ^ 2) == direction && // entrance towards: 0 = NE, 1 = SE, 2 = SW, 3 = NW
+ // GetTunnelTransportType(tile) == type && // rail/road-tunnel <-- This is not necesary to check, right?
+ ReverseDiagDir(GetTunnelDirection(tile)) == direction &&
GetSlopeZ(x + 8, y + 8) == z) {
break;
}
@@ -283,8 +284,8 @@ static void TPFMode1(TrackPathFinder* tpf, TileIndex tile, DiagDirection directi
TileIndex tile_org = tile;
if (IsTileType(tile, MP_TUNNELBRIDGE) && GB(_m[tile].m5, 4, 4) == 0) {
- if (GB(_m[tile].m5, 0, 2) != direction ||
- GB(_m[tile].m5, 2, 2) != tpf->tracktype) {
+ if (GetTunnelDirection(tile) != direction ||
+ GetTunnelTransportType(tile) != tpf->tracktype) {
return;
}
tile = SkipToEndOfTunnel(tpf, tile, direction);
@@ -717,13 +718,14 @@ start_at:
// need to find the exit of the tunnel.
if (IsTileType(tile, MP_TUNNELBRIDGE)) {
if (GB(_m[tile].m5, 4, 4) == 0 &&
- GB(_m[tile].m5, 0, 2) != (direction ^ 2)) {
+ GetTunnelDirection(tile) != ReverseDiagDir(direction)) {
/* This is a tunnel tile */
/* We are not just driving out of the tunnel */
- if (GB(_m[tile].m5, 0, 2) != direction || GB(_m[tile].m5, 2, 2) != tpf->tracktype)
- /* We are not driving into the tunnel, or it
- * is an invalid tunnel */
+ if (GetTunnelDirection(tile) != direction ||
+ GetTunnelTransportType(tile) != tpf->tracktype) {
+ // We are not driving into the tunnel, or it is an invalid tunnel
continue;
+ }
flotr = FindLengthOfTunnel(tile, direction);
si.cur_length += flotr.length * DIAG_FACTOR;
tile = flotr.tile;
diff --git a/rail_cmd.c b/rail_cmd.c
index f00ca595c..3aad4431e 100644
--- a/rail_cmd.c
+++ b/rail_cmd.c
@@ -10,6 +10,7 @@
#include "table/strings.h"
#include "map.h"
#include "tile.h"
+#include "tunnel_map.h"
#include "vehicle.h"
#include "viewport.h"
#include "command.h"
@@ -1627,21 +1628,21 @@ static bool SignalVehicleCheck(TileIndex tile, uint track)
if (IsTileType(tile, MP_TUNNELBRIDGE) && GB(_m[tile].m5, 4, 4) == 0) {
// It is a tunnel we're checking, we need to do some special stuff
// because VehicleFromPos will not find the vihicle otherwise
- byte direction = GB(_m[tile].m5, 0, 2);
- FindLengthOfTunnelResult flotr;
- flotr = FindLengthOfTunnel(tile, direction);
+ TileIndex end = GetOtherTunnelEnd(tile);
+ DiagDirection direction = GetTunnelDirection(tile);
+
dest.track = 1 << (direction & 1); // get the trackbit the vehicle would have if it has not entered the tunnel yet (ie is still visible)
// check for a vehicle with that trackdir on the start tile of the tunnel
if (VehicleFromPos(tile, &dest, SignalVehicleCheckProc) != NULL) return true;
// check for a vehicle with that trackdir on the end tile of the tunnel
- if (VehicleFromPos(flotr.tile, &dest, SignalVehicleCheckProc) != NULL) return true;
+ if (VehicleFromPos(end, &dest, SignalVehicleCheckProc) != NULL) return true;
// now check all tiles from start to end for a "hidden" vehicle
// NOTE: the hashes for tiles may overlap, so this could maybe be optimised a bit by not checking every tile?
dest.track = 0x40; // trackbit for vehicles "hidden" inside a tunnel
- for (; tile != flotr.tile; tile += TileOffsByDir(direction)) {
+ for (; tile != end; tile += TileOffsByDir(direction)) {
if (VehicleFromPos(tile, &dest, SignalVehicleCheckProc) != NULL)
return true;
}
diff --git a/road_map.c b/road_map.c
index 45aba0605..14611e88b 100644
--- a/road_map.c
+++ b/road_map.c
@@ -5,6 +5,7 @@
#include "functions.h"
#include "road_map.h"
#include "station.h"
+#include "tunnel_map.h"
RoadBits GetAnyRoadBits(TileIndex tile)
@@ -36,8 +37,8 @@ RoadBits GetAnyRoadBits(TileIndex tile)
}
} else {
// tunnel
- if (GB(_m[tile].m5, 2, 2) != TRANSPORT_ROAD) return 0; // not a road tunnel
- return DiagDirToRoadBits(ReverseDiagDir(GB(_m[tile].m5, 0, 2)));
+ if (GetTunnelTransportType(tile) != TRANSPORT_ROAD) return 0;
+ return DiagDirToRoadBits(ReverseDiagDir(GetTunnelDirection(tile)));
}
default: return 0;
diff --git a/town_cmd.c b/town_cmd.c
index 920601397..9813f5312 100644
--- a/town_cmd.c
+++ b/town_cmd.c
@@ -9,10 +9,10 @@
#include "table/sprites.h"
#include "map.h"
#include "tile.h"
+#include "tunnel_map.h"
#include "viewport.h"
#include "town.h"
#include "command.h"
-#include "pathfind.h"
#include "gfx.h"
#include "industry.h"
#include "station.h"
@@ -624,9 +624,10 @@ static void GrowTownInTile(TileIndex* tile_ptr, RoadBits mask, int block, Town*
int i;
// Reached a tunnel? Then continue at the other side of it.
- if (IsTileType(tile, MP_TUNNELBRIDGE) && (_m[tile].m5& ~3) == 4) {
- FindLengthOfTunnelResult flotr = FindLengthOfTunnel(tile, GB(_m[tile].m5, 0, 2));
- *tile_ptr = flotr.tile;
+ if (IsTileType(tile, MP_TUNNELBRIDGE) &&
+ GB(_m[tile].m5, 4, 4) == 0 &&
+ GetTunnelTransportType(tile) == TRANSPORT_ROAD) {
+ *tile_ptr = GetOtherTunnelEnd(tile);
return;
}
diff --git a/train_cmd.c b/train_cmd.c
index 291c2ea01..4d0f434ae 100644
--- a/train_cmd.c
+++ b/train_cmd.c
@@ -8,6 +8,7 @@
#include "table/strings.h"
#include "map.h"
#include "tile.h"
+#include "tunnel_map.h"
#include "vehicle.h"
#include "command.h"
#include "pathfind.h"
@@ -3121,8 +3122,10 @@ static bool TrainCheckIfLineEnds(Vehicle *v)
tile = v->tile;
// tunnel entrance?
- if (IsTunnelTile(tile) && DiagDirToDir(GB(_m[tile].m5, 0, 2)) == v->direction)
+ if (IsTunnelTile(tile) &&
+ DiagDirToDir(GetTunnelDirection(tile)) == v->direction) {
return true;
+ }
// depot?
/* XXX -- When enabled, this makes it possible to crash trains of others
diff --git a/tunnel_map.c b/tunnel_map.c
new file mode 100644
index 000000000..d39c7ef04
--- /dev/null
+++ b/tunnel_map.c
@@ -0,0 +1,25 @@
+/* $Id$ */
+
+#include "stdafx.h"
+#include "openttd.h"
+#include "tile.h"
+#include "tunnel_map.h"
+
+TileIndex GetOtherTunnelEnd(TileIndex tile)
+{
+ DiagDirection dir = GetTunnelDirection(tile);
+ TileIndexDiff delta = TileOffsByDir(dir);
+ uint z = GetTileZ(tile);
+
+ dir = ReverseDiagDir(dir);
+ do {
+ tile += delta;
+ } while (
+ !IsTileType(tile, MP_TUNNELBRIDGE) ||
+ GB(_m[tile].m5, 4, 4) != 0 ||
+ GetTunnelDirection(tile) != dir ||
+ GetTileZ(tile) != z
+ );
+
+ return tile;
+}
diff --git a/tunnel_map.h b/tunnel_map.h
new file mode 100644
index 000000000..aa30e12c3
--- /dev/null
+++ b/tunnel_map.h
@@ -0,0 +1,47 @@
+/* $Id$ */
+
+#ifndef TUNNEL_MAP_H
+#define TUNNEL_MAP_H
+
+#include "direction.h"
+#include "macros.h"
+#include "map.h"
+#include "rail.h"
+
+
+static inline DiagDirection GetTunnelDirection(TileIndex t)
+{
+ return (DiagDirection)GB(_m[t].m5, 0, 2);
+}
+
+
+static inline TransportType GetTunnelTransportType(TileIndex t)
+{
+ return (TransportType)GB(_m[t].m5, 2, 2);
+}
+
+
+TileIndex GetOtherTunnelEnd(TileIndex);
+
+
+static inline void MakeRoadTunnel(TileIndex t, Owner o, DiagDirection d)
+{
+ SetTileType(t, MP_TUNNELBRIDGE);
+ SetTileOwner(t, o);
+ _m[t].m2 = 0;
+ _m[t].m3 = 0;
+ _m[t].m4 = 0;
+ _m[t].m5 = TRANSPORT_ROAD << 2 | d;
+}
+
+static inline void MakeRailTunnel(TileIndex t, Owner o, DiagDirection d, RailType r)
+{
+ SetTileType(t, MP_TUNNELBRIDGE);
+ SetTileOwner(t, o);
+ _m[t].m2 = 0;
+ _m[t].m3 = r;
+ _m[t].m4 = 0;
+ _m[t].m5 = TRANSPORT_RAIL << 2 | d;
+}
+
+#endif
diff --git a/tunnelbridge_cmd.c b/tunnelbridge_cmd.c
index 982b81d9c..50f38f16e 100644
--- a/tunnelbridge_cmd.c
+++ b/tunnelbridge_cmd.c
@@ -13,6 +13,7 @@
#include "functions.h"
#include "map.h"
#include "tile.h"
+#include "tunnel_map.h"
#include "vehicle.h"
#include "viewport.h"
#include "command.h"
@@ -440,7 +441,7 @@ static bool DoCheckTunnelInWay(TileIndex tile, uint z, DiagDirection dir)
if (z == height &&
IsTileType(tile, MP_TUNNELBRIDGE) &&
GB(_m[tile].m5, 4, 4) == 0 &&
- GB(_m[tile].m5, 0, 2) == dir) {
+ GetTunnelDirection(tile) == dir) {
_error_message = STR_5003_ANOTHER_TUNNEL_IN_THE_WAY;
return false;
}
@@ -526,15 +527,13 @@ int32 CmdBuildTunnel(int x, int y, uint32 flags, uint32 p1, uint32 p2)
cost += _price.build_tunnel + ret;
if (flags & DC_EXEC) {
- SetTileType(start_tile, MP_TUNNELBRIDGE);
- SetTileOwner(start_tile, _current_player);
- _m[start_tile].m3 = GB(p1, 0, 4); // rail type (if any)
- _m[start_tile].m5 = (GB(p1, 9, 1) << 2) | direction; // transport type and entrance direction
-
- SetTileType(end_tile, MP_TUNNELBRIDGE);
- SetTileOwner(end_tile, _current_player);
- _m[end_tile].m3 = GB(p1, 0, 4); // rail type (if any)
- _m[end_tile].m5 = (GB(p1, 9, 1) << 2) | (direction ^ 2); // transport type and entrance direction
+ if (GB(p1, 9, 1) == TRANSPORT_RAIL) {
+ MakeRailTunnel(start_tile, _current_player, direction, GB(p1, 0, 4));
+ MakeRailTunnel(end_tile, _current_player, ReverseDiagDir(direction), GB(p1, 0, 4));
+ } else {
+ MakeRoadTunnel(start_tile, _current_player, direction);
+ MakeRoadTunnel(end_tile, _current_player, ReverseDiagDir(direction));
+ }
if (GB(p1, 9, 1) == 0) UpdateSignalsOnSegment(start_tile, DiagDirToDir(direction));
}
@@ -545,8 +544,8 @@ int32 CmdBuildTunnel(int x, int y, uint32 flags, uint32 p1, uint32 p2)
TileIndex CheckTunnelBusy(TileIndex tile, uint *length)
{
uint z = GetTileZ(tile);
- byte m5 = _m[tile].m5;
- TileIndexDiff delta = TileOffsByDir(m5 & 3);
+ DiagDirection dir = GetTunnelDirection(tile);
+ TileIndexDiff delta = TileOffsByDir(dir);
uint len = 0;
TileIndex starttile = tile;
Vehicle *v;
@@ -557,7 +556,7 @@ TileIndex CheckTunnelBusy(TileIndex tile, uint *length)
} while (
!IsTileType(tile, MP_TUNNELBRIDGE) ||
GB(_m[tile].m5, 4, 4) != 0 ||
- (_m[tile].m5 ^ 2) != m5 ||
+ ReverseDiagDir(GetTunnelDirection(tile)) != dir ||
GetTileZ(tile) != z
);
@@ -605,8 +604,8 @@ static int32 DoClearTunnel(TileIndex tile, uint32 flags)
if (flags & DC_EXEC) {
// We first need to request the direction before calling DoClearSquare
// else the direction is always 0.. dah!! ;)
- byte tile_dir = GB(_m[tile].m5, 0, 2);
- byte endtile_dir = GB(_m[endtile].m5, 0, 2);
+ DiagDirection tile_dir = GetTunnelDirection(tile);
+ DiagDirection endtile_dir = GetTunnelDirection(endtile);
// Adjust the town's player rating. Do this before removing the tile owner info.
if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR)
@@ -996,7 +995,7 @@ static void DrawTile_TunnelBridge(TileInfo *ti)
// draw tunnel?
if ((ti->map5 & 0xF0) == 0) {
- if (GB(ti->map5, 2, 2) == 0) { /* Rail tunnel? */
+ if (GetTunnelTransportType(ti->tile) == TRANSPORT_RAIL) {
image = GetRailTypeInfo(GB(_m[ti->tile].m3, 0, 4))->base_sprites.tunnel;
} else {
image = SPR_TUNNEL_ENTRY_REAR_ROAD;
@@ -1004,7 +1003,7 @@ static void DrawTile_TunnelBridge(TileInfo *ti)
if (ice) image += 32;
- image += GB(ti->map5, 0, 2) * 2;
+ image += GetTunnelDirection(ti->tile) * 2;
DrawGroundSprite(image);
AddSortableSpriteToDraw(image+1, ti->x + 15, ti->y + 15, 1, 1, 8, (byte)ti->z);
@@ -1266,8 +1265,8 @@ static const StringID _bridge_tile_str[(MAX_BRIDGES + 3) + (MAX_BRIDGES + 3)] =
static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
{
if ((_m[tile].m5 & 0x80) == 0) {
- td->str =
- (GB(_m[tile].m5, 2, 2) == 0) ? STR_5017_RAILROAD_TUNNEL : STR_5018_ROAD_TUNNEL;
+ td->str = (GetTunnelTransportType(tile) == TRANSPORT_RAIL) ?
+ STR_5017_RAILROAD_TUNNEL : STR_5018_ROAD_TUNNEL;
} else {
td->str = _bridge_tile_str[GB(_m[tile].m5, 1, 2) << 4 | GB(_m[tile].m2, 4, 4)];
@@ -1329,9 +1328,8 @@ static uint32 GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode
if ((m5 & 0xF0) == 0) {
/* This is a tunnel */
- if (GB(m5, 2, 2) == mode) {
- /* Tranport in the tunnel is compatible */
- return m5&1 ? 0x202 : 0x101;
+ if (GetTunnelTransportType(tile) == mode) {
+ return DiagDirToAxis(GetTunnelDirection(tile)) == AXIS_X ? 0x101 : 0x202;
}
} else if (m5 & 0x80) {
/* This is a bridge */
@@ -1419,7 +1417,7 @@ static uint32 VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y
if (v->type == VEH_Train) {
fc = (x & 0xF) + (y << 4);
- dir = GB(_m[tile].m5, 0, 2);
+ dir = GetTunnelDirection(tile);
vdir = DirToDiagDir(v->direction);
if (v->u.rail.track != 0x40 && dir == vdir) {
@@ -1446,7 +1444,7 @@ static uint32 VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y
}
} else if (v->type == VEH_Road) {
fc = (x & 0xF) + (y << 4);
- dir = GB(_m[tile].m5, 0, 2);
+ dir = GetTunnelDirection(tile);
vdir = DirToDiagDir(v->direction);
// Enter tunnel?
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2024-12-15 17:05:44 +0000