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(svn r7573) -Merged the bridge branch. Allows to build bridges of arbitrary rail/road combinations (including signals)

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This commit is contained in:
celestar
2006-12-27 12:38:02 +00:00
parent d92103d6ff
commit d95e2c2dd1
39 changed files with 845 additions and 1179 deletions
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77
rail_cmd.c
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@@ -247,36 +247,13 @@ int32 CmdBuildSingleRail(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
switch (GetTileType(tile)) {
case MP_TUNNELBRIDGE:
if (!IsBridge(tile) ||
!IsBridgeMiddle(tile) ||
AxisToTrackBits(OtherAxis(GetBridgeAxis(tile))) != trackbit) {
// Get detailed error message
return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
}
if (IsClearUnderBridge(tile)) {
ret = CheckRailSlope(tileh, trackbit, 0, tile);
if (CmdFailed(ret)) return ret;
cost += ret;
if (flags & DC_EXEC) SetRailUnderBridge(tile, _current_player, railtype);
} else if (IsTransportUnderBridge(tile) &&
GetTransportTypeUnderBridge(tile) == TRANSPORT_RAIL) {
return_cmd_error(STR_1007_ALREADY_BUILT);
} else {
// Get detailed error message
return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
}
break;
case MP_RAILWAY:
if (!CheckTrackCombination(tile, trackbit, flags) ||
!EnsureNoVehicle(tile)) {
return CMD_ERROR;
}
if (!IsTileOwner(tile, _current_player) ||
!IsCompatibleRail(GetRailType(tile), railtype)) {
GetRailType(tile) != railtype) {
// Get detailed error message
return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
}
@@ -366,20 +343,6 @@ int32 CmdRemoveSingleRail(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
switch (GetTileType(tile)) {
case MP_TUNNELBRIDGE:
if (!IsBridge(tile) ||
!IsBridgeMiddle(tile) ||
!IsTransportUnderBridge(tile) ||
GetTransportTypeUnderBridge(tile) != TRANSPORT_RAIL ||
GetRailBitsUnderBridge(tile) != trackbit ||
(_current_player != OWNER_WATER && !CheckTileOwnership(tile)) ||
!EnsureNoVehicleOnGround(tile)) {
return CMD_ERROR;
}
if (flags & DC_EXEC) SetClearUnderBridge(tile);
break;
case MP_STREET: {
if (!IsLevelCrossing(tile) ||
GetCrossingRailBits(tile) != trackbit ||
@@ -617,6 +580,8 @@ int32 CmdBuildTrainDepot(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
if (CmdFailed(ret)) return CMD_ERROR;
cost = ret;
if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
d = AllocateDepot();
if (d == NULL) return CMD_ERROR;
@@ -1414,6 +1379,7 @@ default_waypoint:
);
}
}
DrawBridgeMiddle(ti);
}
@@ -1513,19 +1479,11 @@ typedef struct SignalVehicleCheckStruct {
static void *SignalVehicleCheckProc(Vehicle *v, void *data)
{
const SignalVehicleCheckStruct* dest = data;
TileIndex tile;
if (v->type != VEH_Train) return NULL;
/* Find the tile outside the tunnel, for signalling */
if (v->u.rail.track == 0x40) {
tile = GetVehicleOutOfTunnelTile(v);
} else {
tile = v->tile;
}
/* Wrong tile, or no train? Not a match */
if (tile != dest->tile) return NULL;
if (v->tile != dest->tile) return NULL;
/* Are we on the same piece of track? */
if (dest->track & v->u.rail.track * 0x101) return v;
@@ -1541,15 +1499,18 @@ static bool SignalVehicleCheck(TileIndex tile, uint track)
dest.tile = tile;
dest.track = track;
/** @todo "Hackish" fix for the tunnel problems. This is needed because a tunnel
* is some kind of invisible black hole, and there is some special magic going
* on in there. This 'workaround' can be removed once the maprewrite is done.
*/
if (IsTunnelTile(tile)) {
// It is a tunnel we're checking, we need to do some special stuff
// because VehicleFromPos will not find the vihicle otherwise
TileIndex end = GetOtherTunnelEnd(tile);
DiagDirection direction = GetTunnelDirection(tile);
/* Locate vehicles in tunnels or on bridges */
if (IsTunnelTile(tile) || IsBridgeTile(tile)) {
TileIndex end;
DiagDirection direction;
if (IsTunnelTile(tile)) {
end = GetOtherTunnelEnd(tile);
direction = GetTunnelDirection(tile);
} else {
end = GetOtherBridgeEnd(tile);
direction = GetBridgeRampDirection(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)
@@ -1559,9 +1520,9 @@ static bool SignalVehicleCheck(TileIndex tile, uint track)
// check for a vehicle with that trackdir on the end tile of the tunnel
if (VehicleFromPos(end, &dest, SignalVehicleCheckProc) != NULL) return true;
// now check all tiles from start to end for a "hidden" vehicle
// now check all tiles from start to end for a warping 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
dest.track = 0x40; //Vehicle inside a tunnel or on a bridge
for (; tile != end; tile += TileOffsByDiagDir(direction)) {
if (VehicleFromPos(tile, &dest, SignalVehicleCheckProc) != NULL)
return true;