road_internal.h File Reference

Functions used internally by the roads. More...

#include "tile_cmd.h"

Go to the source code of this file.

Functions

RoadBits CleanUpRoadBits (const TileIndex tile, RoadBits org_rb)
 Clean up unneccesary RoadBits of a planed tile.
bool CheckAllowRemoveRoad (TileIndex tile, RoadBits remove, Owner owner, bool *edge_road, RoadType rt)
 Is it allowed to remove the given road bits from the given tile?
void DrawTramCatenary (TileInfo *ti, RoadBits tram)
 Draw the catenary for tram road bits.


Detailed Description

Functions used internally by the roads.

Definition in file road_internal.h.


Function Documentation

bool CheckAllowRemoveRoad ( TileIndex  tile,
RoadBits  remove,
Owner  owner,
bool *  edge_road,
RoadType  rt 
)

Is it allowed to remove the given road bits from the given tile?

Parameters:
tile the tile to remove the road from
remove the roadbits that are going to be removed
owner the actual owner of the roadbits of the tile
edge_road are the removed bits from a town?
rt the road type to remove the bits from
Returns:
true when it is allowed to remove the road bits

Definition at line 47 of file road_cmd.cpp.

References GetAnyRoadBits(), OWNER_NONE, OWNER_TOWN, OWNER_WATER, ROAD_NE, ROAD_NONE, ROAD_NW, ROAD_SE, ROAD_SW, ROADTYPE_ROAD, and TILE_ADDXY.

Referenced by CanRemoveRoadWithStop(), and RemoveRoad().

RoadBits CleanUpRoadBits ( const TileIndex  tile,
RoadBits  org_rb 
)

Clean up unneccesary RoadBits of a planed tile.

Parameters:
tile current tile
org_rb planed RoadBits
Returns:
optimised RoadBits

Definition at line 24 of file road.cpp.

References CountBits(), DIAGDIR_BEGIN, DIAGDIR_END, DiagDirToAxis(), DiagDirToRoadBits(), GetAnyRoadBits(), GetTileType(), IsWater(), MirrorRoadBits(), MP_CLEAR, MP_RAILWAY, MP_ROAD, MP_STATION, MP_TREES, MP_TUNNELBRIDGE, MP_WATER, ROADTYPE_ROAD, ROADTYPE_TRAM, and TileAddByDiagDir().

void DrawTramCatenary ( TileInfo *  ti,
RoadBits  tram 
)

Draw the catenary for tram road bits.

Parameters:
ti information about the tile (position, slope)
tram the roadbits to draw the catenary for
Draw the catenary for tram road bits.

Parameters:
ti information about the tile (slopes, height etc)
tram the roadbits for the tram

Definition at line 967 of file road_cmd.cpp.

References AddSortableSpriteToDraw(), BB_HEIGHT_UNDER_BRIDGE, GetBridgeHeight(), GetNorthernBridgeEnd(), IsBridgeAbove(), IsTransparencySet(), MayHaveBridgeAbove(), SLOPE_FLAT, TILE_HEIGHT, and TO_CATENARY.

Referenced by DrawRoadBits().


Generated on Wed Oct 1 17:03:30 2008 for openttd by  doxygen 1.5.6