00001 /* $Id$ */ 00002 00003 /* 00004 * This file is part of OpenTTD. 00005 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2. 00006 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 00007 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>. 00008 */ 00009 00012 #ifndef YAPF_COSTBASE_HPP 00013 #define YAPF_COSTBASE_HPP 00014 00015 struct CYapfCostBase { 00016 FORCEINLINE static bool stSlopeCost(TileIndex tile, Trackdir td) 00017 { 00018 if (IsDiagonalTrackdir(td)) { 00019 if (IsBridgeTile(tile)) { 00020 /* it is bridge ramp, check if we are entering the bridge */ 00021 if (GetTunnelBridgeDirection(tile) != TrackdirToExitdir(td)) return false; // no, we are leaving it, no penalty 00022 /* we are entering the bridge */ 00023 Slope tile_slope = GetTileSlope(tile, NULL); 00024 Axis axis = DiagDirToAxis(GetTunnelBridgeDirection(tile)); 00025 return !HasBridgeFlatRamp(tile_slope, axis); 00026 } else { 00027 /* not bridge ramp */ 00028 if (IsTunnelTile(tile)) return false; // tunnel entry/exit doesn't slope 00029 Slope tile_slope = GetTileSlope(tile, NULL); 00030 return IsUphillTrackdir(tile_slope, td); // slopes uphill => apply penalty 00031 } 00032 } 00033 return false; 00034 } 00035 }; 00036 00037 struct CostRailSettings { 00038 /* look-ahead signal penalty */ 00039 }; 00040 00041 00042 #endif /* YAPF_COSTBASE_HPP */