src/road_map.h
author celestar
Wed, 13 Jun 2007 11:45:14 +0000
branchgamebalance
changeset 9911 0b8b245a2391
parent 9908 0fa543611bbe
child 9912 1ac8aac92385
permissions -rw-r--r--
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/* $Id$ */
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/** @file road_map.h */
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#ifndef ROAD_MAP_H
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#define ROAD_MAP_H
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#include "macros.h"
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#include "rail.h"
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#include "road.h"
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#include "tile.h"
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enum RoadTileType {
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	ROAD_TILE_NORMAL,
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	ROAD_TILE_CROSSING,
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	ROAD_TILE_DEPOT
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};
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static inline RoadTileType GetRoadTileType(TileIndex t)
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	{
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	assert(IsTileType(t, MP_STREET));
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	return (RoadTileType)GB(_m[t].m5, 6, 2);
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}
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static inline bool IsLevelCrossing(TileIndex t)
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{
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	return GetRoadTileType(t) == ROAD_TILE_CROSSING;
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}
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static inline bool IsLevelCrossingTile(TileIndex t)
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{
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	return IsTileType(t, MP_STREET) && IsLevelCrossing(t);
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}
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static inline RoadBits GetRoadBits(TileIndex t, RoadType rt)
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{
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	assert(GetRoadTileType(t) == ROAD_TILE_NORMAL);
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	switch (rt) {
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		default: NOT_REACHED();
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		case ROADTYPE_ROAD: return (RoadBits)GB(_m[t].m4, 0, 4);
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		case ROADTYPE_TRAM: return (RoadBits)GB(_m[t].m4, 4, 4);
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		case ROADTYPE_HWAY: return (RoadBits)GB(_m[t].m6, 2, 4);
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	}
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}
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static inline RoadBits GetAllRoadBits(TileIndex tile)
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{
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	return GetRoadBits(tile, ROADTYPE_ROAD) | GetRoadBits(tile, ROADTYPE_TRAM) | GetRoadBits(tile, ROADTYPE_HWAY);
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}
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static inline void SetRoadBits(TileIndex t, RoadBits r, RoadType rt)
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{
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	assert(GetRoadTileType(t) == ROAD_TILE_NORMAL); // XXX incomplete
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	switch (rt) {
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		default: NOT_REACHED();
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		case ROADTYPE_ROAD: SB(_m[t].m4, 0, 4, r); break;
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		case ROADTYPE_TRAM: SB(_m[t].m4, 4, 4, r); break;
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		case ROADTYPE_HWAY: SB(_m[t].m6, 2, 4, r); break;
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	}
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}
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static inline RoadTypes GetRoadTypes(TileIndex t)
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{
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	if (IsTileType(t, MP_STREET)) {
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		return (RoadTypes)GB(_me[t].m7, 5, 3);
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	} else {
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		return (RoadTypes)GB(_m[t].m3, 0, 3);
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	}
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}
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static inline void SetRoadTypes(TileIndex t, RoadTypes rt)
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{
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	if (IsTileType(t, MP_STREET)) {
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		SB(_me[t].m7, 5, 3, rt);
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	} else {
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		assert(IsTileType(t, MP_STATION) || IsTileType(t, MP_TUNNELBRIDGE));
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		SB(_m[t].m3, 0, 2, rt);
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	}
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}
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static inline Owner GetRoadOwner(TileIndex t, RoadType rt)
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{
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	if (!IsTileType(t, MP_STREET)) return GetTileOwner(t);
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	switch (GetRoadTileType(t)) {
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		default: NOT_REACHED();
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		case ROAD_TILE_NORMAL:
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			switch (rt) {
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				default: NOT_REACHED();
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				case ROADTYPE_ROAD: return (Owner)GB( _m[t].m1, 0, 5);
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				case ROADTYPE_TRAM: return (Owner)GB( _m[t].m5, 0, 5);
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				case ROADTYPE_HWAY: return (Owner)GB(_me[t].m7, 0, 5);
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			}
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		case ROAD_TILE_CROSSING:
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			switch (rt) {
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				default: NOT_REACHED();
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				case ROADTYPE_ROAD: return (Owner)GB( _m[t].m4, 0, 5);
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				case ROADTYPE_TRAM: return (Owner)GB( _m[t].m5, 0, 5);
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				case ROADTYPE_HWAY: return (Owner)GB(_me[t].m7, 0, 5);
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			}
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		case ROAD_TILE_DEPOT: return GetTileOwner(t);
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	}
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}
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static inline void SetRoadOwner(TileIndex t, RoadType rt, Owner o)
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{
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	if (!IsTileType(t, MP_STREET)) return SetTileOwner(t, o);
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	switch (GetRoadTileType(t)) {
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		default: NOT_REACHED();
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		case ROAD_TILE_NORMAL:
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			switch (rt) {
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				default: NOT_REACHED();
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				case ROADTYPE_ROAD: SB( _m[t].m1, 0, 5, o); break;
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				case ROADTYPE_TRAM: SB( _m[t].m5, 0, 5, o); break;
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				case ROADTYPE_HWAY: SB(_me[t].m7, 0, 5, o); break;
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			}
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			break;
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		case ROAD_TILE_CROSSING:
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			switch (rt) {
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   122
				default: NOT_REACHED();
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   123
				case ROADTYPE_ROAD: SB( _m[t].m4, 0, 5, o); break;
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   124
				case ROADTYPE_TRAM: SB( _m[t].m5, 0, 5, o); break;
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   125
				case ROADTYPE_HWAY: SB(_me[t].m7, 0, 5, o); break;
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   126
			}
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			break;
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		case ROAD_TILE_DEPOT: return SetTileOwner(t, o);
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   129
	}
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}
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   131
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static inline Axis GetCrossingRoadAxis(TileIndex t)
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{
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	assert(GetRoadTileType(t) == ROAD_TILE_CROSSING);
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	return (Axis)GB(_m[t].m4, 6, 1);
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}
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   137
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static inline RoadBits GetCrossingRoadBits(TileIndex tile)
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{
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	return GetCrossingRoadAxis(tile) == AXIS_X ? ROAD_X : ROAD_Y;
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   141
}
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   142
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   143
static inline TrackBits GetCrossingRailBits(TileIndex tile)
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   144
{
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   145
	return AxisToTrackBits(OtherAxis(GetCrossingRoadAxis(tile)));
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   146
}
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   147
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   148
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   149
static inline void UnbarCrossing(TileIndex t)
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{
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   151
	assert(GetRoadTileType(t) == ROAD_TILE_CROSSING);
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	CLRBIT(_m[t].m4, 5);
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}
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   154
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static inline void BarCrossing(TileIndex t)
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{
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   157
	assert(GetRoadTileType(t) == ROAD_TILE_CROSSING);
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	SETBIT(_m[t].m4, 5);
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   159
}
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   160
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   161
static inline bool IsCrossingBarred(TileIndex t)
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{
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   163
	assert(GetRoadTileType(t) == ROAD_TILE_CROSSING);
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   164
	return HASBIT(_m[t].m4, 5);
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   165
}
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   166
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   167
#define IsOnDesert IsOnSnow
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static inline bool IsOnSnow(TileIndex t)
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{
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	return HASBIT(_m[t].m3, 7);
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}
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   172
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   173
#define ToggleDesert ToggleSnow
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   174
static inline void ToggleSnow(TileIndex t)
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{
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   176
	TOGGLEBIT(_m[t].m3, 7);
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   177
}
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   178
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   179
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   180
enum Roadside {
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	ROADSIDE_BARREN           = 0,
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	ROADSIDE_GRASS            = 1,
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   183
	ROADSIDE_PAVED            = 2,
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   184
	ROADSIDE_STREET_LIGHTS    = 3,
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	ROADSIDE_TREES            = 5,
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	ROADSIDE_GRASS_ROAD_WORKS = 6,
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	ROADSIDE_PAVED_ROAD_WORKS = 7
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   188
};
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   189
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   190
static inline Roadside GetRoadside(TileIndex tile)
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{
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   192
	return (Roadside)GB(_m[tile].m3, 4, 3);
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   193
}
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   194
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   195
static inline void SetRoadside(TileIndex tile, Roadside s)
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{
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   197
	SB(_m[tile].m3, 4, 3, s);
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   198
}
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   199
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static inline bool HasRoadWorks(TileIndex t)
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{
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   202
	return GetRoadside(t) >= ROADSIDE_GRASS_ROAD_WORKS;
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   203
}
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   204
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   205
static inline bool IncreaseRoadWorksCounter(TileIndex t)
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{
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   207
	AB(_m[t].m3, 0, 4, 1);
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   208
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   209
	return GB(_m[t].m3, 0, 4) == 15;
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   210
}
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   211
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   212
static inline void StartRoadWorks(TileIndex t)
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   213
{
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   214
	assert(!HasRoadWorks(t));
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   215
	/* Remove any trees or lamps in case or roadwork */
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   216
	switch (GetRoadside(t)) {
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   217
		case ROADSIDE_BARREN:
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   218
		case ROADSIDE_GRASS:  SetRoadside(t, ROADSIDE_GRASS_ROAD_WORKS); break;
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   219
		default:              SetRoadside(t, ROADSIDE_PAVED_ROAD_WORKS); break;
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   220
	}
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   221
}
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   222
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   223
static inline void TerminateRoadWorks(TileIndex t)
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   224
{
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   225
	assert(HasRoadWorks(t));
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   226
	SetRoadside(t, (Roadside)(GetRoadside(t) - ROADSIDE_GRASS_ROAD_WORKS + ROADSIDE_GRASS));
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	/* Stop the counter */
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   228
	SB(_m[t].m3, 0, 4, 0);
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   229
}
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   230
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   231
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   232
static inline DiagDirection GetRoadDepotDirection(TileIndex t)
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   233
{
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   234
	assert(GetRoadTileType(t) == ROAD_TILE_DEPOT);
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   235
	return (DiagDirection)GB(_m[t].m5, 0, 2);
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   236
}
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   237
197b5ee5a831 (svn r3795) Add a function to request the orientation of a depot
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   238
3146
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   239
/**
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   240
 * Returns the RoadBits on an arbitrary tile
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 * Special behaviour:
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 * - road depots: entrance is treated as road piece
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 * - road tunnels: entrance is treated as road piece
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 * - bridge ramps: start of the ramp is treated as road piece
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 * - bridge middle parts: bridge itself is ignored
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 * @param tile the tile to get the road bits for
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 * @param rt   the road type to get the road bits form
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 * @return the road bits of the given tile
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 */
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RoadBits GetAnyRoadBits(TileIndex tile, RoadType rt);
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/**
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 * Get the accessible track bits for the given tile.
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 * Special behaviour:
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 *  - road depots: no track bits
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 *  - non-drive-through stations: no track bits
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 * @param tile the tile to get the track bits for
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 * @return the track bits for the given tile
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 */
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TrackBits GetAnyRoadTrackBits(TileIndex tile, RoadType rt);
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static inline void MakeRoadNormal(TileIndex t, RoadBits bits, RoadTypes rot, TownID town, Owner road, Owner tram, Owner hway)
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{
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	SetTileType(t, MP_STREET);
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	SetTileOwner(t, road);
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	_m[t].m2 = town;
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	_m[t].m3 = 0;
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	_m[t].m4 = (HASBIT(rot, ROADTYPE_TRAM) ? bits : 0) << 4 | (HASBIT(rot, ROADTYPE_ROAD) ? bits : 0);
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	_m[t].m5 = ROAD_TILE_NORMAL << 6 | tram;
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	SB(_m[t].m6, 2, 4, HASBIT(rot, ROADTYPE_HWAY) ? bits : 0);
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	_me[t].m7 = rot << 5 | hway;
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}
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static inline void MakeRoadCrossing(TileIndex t, Owner road, Owner tram, Owner hway, Owner rail, Axis roaddir, RailType rat, RoadTypes rot, uint town)
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{
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	SetTileType(t, MP_STREET);
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	SetTileOwner(t, rail);
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	_m[t].m2 = town;
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	_m[t].m3 = rat;
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	_m[t].m4 = roaddir << 6 | road;
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	_m[t].m5 = ROAD_TILE_CROSSING << 6 | tram;
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	SB(_m[t].m6, 2, 4, 0);
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	_me[t].m7 = rot << 5 | hway;
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}
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static inline void MakeRoadDepot(TileIndex t, Owner owner, DiagDirection dir, RoadType rt)
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{
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	SetTileType(t, MP_STREET);
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	SetTileOwner(t, owner);
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	_m[t].m2 = 0;
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	_m[t].m3 = 0;
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	_m[t].m4 = 0;
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	_m[t].m5 = ROAD_TILE_DEPOT << 6 | dir;
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	SB(_m[t].m6, 2, 4, 0);
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	_me[t].m7 = RoadTypeToRoadTypes(rt) << 5;
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}
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#endif /* ROAD_MAP_H */