bridge.h File Reference

Header file for bridges. More...

#include "gfx_type.h"
#include "tile_cmd.h"

Go to the source code of this file.

Data Structures

struct  BridgeSpec
 Struct containing information about a single bridge type. More...

Typedefs

typedef uint BridgeType

Enumerations

enum  BridgePieces {
  BRIDGE_PIECE_NORTH = 0, BRIDGE_PIECE_SOUTH, BRIDGE_PIECE_INNER_NORTH, BRIDGE_PIECE_INNER_SOUTH,
  BRIDGE_PIECE_MIDDLE_ODD, BRIDGE_PIECE_MIDDLE_EVEN, BRIDGE_PIECE_HEAD, BRIDGE_PIECE_INVALID
}
 

This enum is related to the definition of bridge pieces, which is used to determine the proper sprite table to use while drawing a given bridge part.


enum  { MAX_BRIDGES = 13 }

Functions

 DECLARE_POSTFIX_INCREMENT (BridgePieces)
Foundation GetBridgeFoundation (Slope tileh, Axis axis)
bool HasBridgeFlatRamp (Slope tileh, Axis axis)
 Determines if the track on a bridge ramp is flat or goes up/down.
static const BridgeSpecGetBridgeSpec (BridgeType i)
void DrawBridgeMiddle (const TileInfo *ti)
CommandCost CheckBridgeAvailability (BridgeType bridge_type, uint bridge_len, DoCommandFlag flags=DC_NONE)
 Is a bridge of the specified type and length available?
int CalcBridgeLenCostFactor (int x)
 calculate the price factor for building a long bridge.
void ResetBridges ()
 Reset the data been eventually changed by the grf loaded.

Variables

BridgeSpec _bridge [MAX_BRIDGES]

Detailed Description

Header file for bridges.

Definition in file bridge.h.


Function Documentation

int CalcBridgeLenCostFactor ( int  x  ) 

calculate the price factor for building a long bridge.

basically the cost delta is 1,1, 1, 2,2, 3,3,3, 4,4,4,4, 5,5,5,5,5, 6,6,6,6,6,6, 7,7,7,7,7,7,7, 8,8,8,8,8,8,8,8,

Definition at line 73 of file tunnelbridge_cmd.cpp.

Referenced by CmdBuildBridge(), AIBridge::GetPrice(), and ShowBuildBridgeWindow().

CommandCost CheckBridgeAvailability ( BridgeType  bridge_type,
uint  bridge_len,
DoCommandFlag  flags 
)

Is a bridge of the specified type and length available?

Parameters:
bridge_type Wanted type of bridge.
bridge_len Wanted length of the bridge.
Returns:
A succeeded (the requested bridge is available) or failed (it cannot be built) command.

Definition at line 169 of file tunnelbridge_cmd.cpp.

References _cur_year, _settings_game, BridgeSpec::avail_year, CMD_ERROR, GameSettings::construction, DC_QUERY_COST, ConstructionSettings::longbridges, max(), BridgeSpec::max_length, BridgeSpec::min_length, and return_cmd_error.

Referenced by CmdBuildBridge(), and ShowBuildBridgeWindow().

bool HasBridgeFlatRamp ( Slope  tileh,
Axis  axis 
)

Determines if the track on a bridge ramp is flat or goes up/down.

Parameters:
tileh Slope of the tile under the bridge head
axis Orientation of bridge
Returns:
true iff the track is flat.

Definition at line 103 of file tunnelbridge_cmd.cpp.

References ApplyFoundationToSlope(), and SLOPE_FLAT.

Referenced by DrawTile_TunnelBridge().

void ResetBridges (  ) 

Reset the data been eventually changed by the grf loaded.

Definition at line 54 of file tunnelbridge_cmd.cpp.

Referenced by ResetNewGRFData().


Generated on Sat Jun 5 21:52:14 2010 for OpenTTD by  doxygen 1.6.1