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Location: cpp/openttd-patchpack/source/src/road_func.h
r28645:c09eac136c46
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Change: Link houses production on industry chain graph by TPE_PASSENGERS or TPE_MAIL cargo.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 | /*
* This file is part of OpenTTD.
* 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.
* 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.
* 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/>.
*/
/** @file road_func.h Functions related to roads. */
#ifndef ROAD_FUNC_H
#define ROAD_FUNC_H
#include "core/bitmath_func.hpp"
#include "road.h"
#include "economy_func.h"
#include "transparency.h"
/**
* Whether the given roadtype is valid.
* @param r the roadtype to check for validness
* @return true if and only if valid
*/
inline bool IsValidRoadBits(RoadBits r)
{
return r < ROAD_END;
}
/**
* Calculate the complement of a RoadBits value
*
* Simply flips all bits in the RoadBits value to get the complement
* of the RoadBits.
*
* @param r The given RoadBits value
* @return the complement
*/
inline RoadBits ComplementRoadBits(RoadBits r)
{
assert(IsValidRoadBits(r));
return (RoadBits)(ROAD_ALL ^ r);
}
/**
* Calculate the mirrored RoadBits
*
* Simply move the bits to their new position.
*
* @param r The given RoadBits value
* @return the mirrored
*/
inline RoadBits MirrorRoadBits(RoadBits r)
{
assert(IsValidRoadBits(r));
return (RoadBits)(GB(r, 0, 2) << 2 | GB(r, 2, 2));
}
/**
* Calculate rotated RoadBits
*
* Move the Roadbits clockwise until they are in their final position.
*
* @param r The given RoadBits value
* @param rot The given Rotation angle
* @return the rotated
*/
inline RoadBits RotateRoadBits(RoadBits r, DiagDirDiff rot)
{
assert(IsValidRoadBits(r));
for (; rot > (DiagDirDiff)0; rot--) {
r = (RoadBits)(GB(r, 0, 1) << 3 | GB(r, 1, 3));
}
return r;
}
/**
* Check if we've got a straight road
*
* @param r The given RoadBits
* @return true if we've got a straight road
*/
inline bool IsStraightRoad(RoadBits r)
{
assert(IsValidRoadBits(r));
return (r == ROAD_X || r == ROAD_Y);
}
/**
* Create the road-part which belongs to the given DiagDirection
*
* This function returns a RoadBits value which belongs to
* the given DiagDirection.
*
* @param d The DiagDirection
* @return The result RoadBits which the selected road-part set
*/
inline RoadBits DiagDirToRoadBits(DiagDirection d)
{
assert(IsValidDiagDirection(d));
return (RoadBits)(ROAD_NW << (3 ^ d));
}
/**
* Create the road-part which belongs to the given Axis
*
* This function returns a RoadBits value which belongs to
* the given Axis.
*
* @param a The Axis
* @return The result RoadBits which the selected road-part set
*/
inline RoadBits AxisToRoadBits(Axis a)
{
assert(IsValidAxis(a));
return a == AXIS_X ? ROAD_X : ROAD_Y;
}
/**
* Calculates the maintenance cost of a number of road bits.
* @param roadtype Road type to get the cost for.
* @param num Number of road bits.
* @param total_num Total number of road bits of all road/tram-types.
* @return Total cost.
*/
inline Money RoadMaintenanceCost(RoadType roadtype, uint32_t num, uint32_t total_num)
{
assert(roadtype < ROADTYPE_END);
return (_price[PR_INFRASTRUCTURE_ROAD] * GetRoadTypeInfo(roadtype)->maintenance_multiplier * num * (1 + IntSqrt(total_num))) >> 12;
}
/**
* Test if a road type has catenary
* @param roadtype Road type to test
*/
inline bool HasRoadCatenary(RoadType roadtype)
{
assert(roadtype < ROADTYPE_END);
return HasBit(GetRoadTypeInfo(roadtype)->flags, ROTF_CATENARY);
}
/**
* Test if we should draw road catenary
* @param roadtype Road type to test
*/
inline bool HasRoadCatenaryDrawn(RoadType roadtype)
{
return HasRoadCatenary(roadtype) && !IsInvisibilitySet(TO_CATENARY);
}
bool HasRoadTypeAvail(CompanyID company, RoadType roadtype);
bool ValParamRoadType(RoadType roadtype);
RoadTypes GetCompanyRoadTypes(CompanyID company, bool introduces = true);
RoadTypes GetRoadTypes(bool introduces);
RoadTypes AddDateIntroducedRoadTypes(RoadTypes current, TimerGameCalendar::Date date);
void UpdateLevelCrossing(TileIndex tile, bool sound = true, bool force_bar = false);
void MarkDirtyAdjacentLevelCrossingTiles(TileIndex tile, Axis road_axis);
void UpdateAdjacentLevelCrossingTilesOnLevelCrossingRemoval(TileIndex tile, Axis road_axis);
void UpdateCompanyRoadInfrastructure(RoadType rt, Owner o, int count);
struct TileInfo;
void DrawRoadOverlays(const TileInfo *ti, PaletteID pal, const RoadTypeInfo *road_rti, const RoadTypeInfo *tram_rit, uint road_offset, uint tram_offset, bool draw_underlay = true);
#endif /* ROAD_FUNC_H */
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