author | richk |
Tue, 17 Jun 2008 13:41:57 +0000 | |
branch | NewGRF_ports |
changeset 10995 | 311b38c7f9a7 |
parent 10991 | d8811e327d12 |
permissions | -rw-r--r-- |
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1 |
/* $Id$ */ |
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2 |
|
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3 |
/** @file road.cpp Generic road related functions. */ |
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4 |
|
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5 |
#include "stdafx.h" |
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6 |
#include "openttd.h" |
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7 |
#include "rail_map.h" |
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8 |
#include "road_map.h" |
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9 |
#include "road_internal.h" |
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10 |
#include "water_map.h" |
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11 |
#include "genworld.h" |
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12 |
#include "player_func.h" |
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13 |
#include "player_base.h" |
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14 |
#include "engine_func.h" |
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15 |
#include "engine_base.h" |
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16 |
#include "settings_type.h" |
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17 |
#include "date_func.h" |
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18 |
|
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19 |
bool IsPossibleCrossing(const TileIndex tile, Axis ax) |
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20 |
{ |
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21 |
return (IsTileType(tile, MP_RAILWAY) && |
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22 |
!HasSignals(tile) && |
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23 |
GetTrackBits(tile) == (ax == AXIS_X ? TRACK_BIT_Y : TRACK_BIT_X) && |
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24 |
GetTileSlope(tile, NULL) == SLOPE_FLAT); |
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25 |
} |
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26 |
|
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27 |
RoadBits CleanUpRoadBits(const TileIndex tile, RoadBits org_rb) |
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28 |
{ |
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29 |
for (DiagDirection dir = DIAGDIR_BEGIN; dir < DIAGDIR_END; dir++) { |
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30 |
const TileIndex neighbor_tile = TileAddByDiagDir(tile, dir); |
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31 |
|
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32 |
/* Get the Roadbit pointing to the neighbor_tile */ |
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33 |
const RoadBits target_rb = DiagDirToRoadBits(dir); |
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34 |
|
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35 |
/* If the roadbit is in the current plan */ |
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36 |
if (org_rb & target_rb) { |
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37 |
bool connective = false; |
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38 |
const RoadBits mirrored_rb = MirrorRoadBits(target_rb); |
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39 |
|
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40 |
switch (GetTileType(neighbor_tile)) { |
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41 |
/* Allways connective ones */ |
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42 |
case MP_CLEAR: case MP_TREES: |
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43 |
connective = true; |
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44 |
break; |
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45 |
|
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46 |
/* The conditionaly connective ones */ |
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47 |
case MP_TUNNELBRIDGE: |
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48 |
case MP_STATION: |
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49 |
case MP_ROAD: { |
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50 |
const RoadBits neighbor_rb = GetAnyRoadBits(neighbor_tile, ROADTYPE_ROAD) | GetAnyRoadBits(neighbor_tile, ROADTYPE_TRAM); |
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51 |
|
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52 |
/* Accept only connective tiles */ |
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53 |
connective = (neighbor_rb & mirrored_rb) || // Neighbor has got the fitting RoadBit |
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54 |
CountBits(neighbor_rb) == 1; // Neighbor has got only one Roadbit |
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55 |
|
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56 |
} break; |
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57 |
|
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58 |
case MP_RAILWAY: |
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59 |
connective = IsPossibleCrossing(neighbor_tile, DiagDirToAxis(dir)); |
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60 |
break; |
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61 |
|
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62 |
case MP_WATER: |
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63 |
/* Check for real water tile */ |
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64 |
connective = !IsWater(neighbor_tile); |
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65 |
break; |
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66 |
|
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67 |
/* The defentetly not connective ones */ |
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68 |
default: break; |
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69 |
} |
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70 |
|
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71 |
/* If the neighbor tile is inconnective remove the planed road connection to it */ |
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72 |
if (!connective) org_rb ^= target_rb; |
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73 |
|
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74 |
} |
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75 |
} |
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76 |
|
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77 |
return org_rb; |
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78 |
} |
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79 |
|
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80 |
bool HasRoadTypesAvail(const PlayerID p, const RoadTypes rts) |
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81 |
{ |
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82 |
RoadTypes avail_roadtypes; |
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|
83 |
|
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84 |
if (p == OWNER_TOWN || _game_mode == GM_EDITOR || IsGeneratingWorld()) { |
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85 |
avail_roadtypes = ROADTYPES_ROAD; |
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86 |
} else { |
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87 |
if (!IsValidPlayer(p)) return false; |
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88 |
avail_roadtypes = (RoadTypes)GetPlayer(p)->avail_roadtypes | ROADTYPES_ROAD; // road is available for always for everybody |
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89 |
} |
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90 |
return (rts & ~avail_roadtypes) == 0; |
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91 |
} |
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92 |
|
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93 |
bool ValParamRoadType(const RoadType rt) |
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94 |
{ |
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|
95 |
return HasRoadTypesAvail(_current_player, RoadTypeToRoadTypes(rt)); |
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96 |
} |
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|
97 |
|
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98 |
RoadTypes GetPlayerRoadtypes(PlayerID p) |
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|
99 |
{ |
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|
100 |
RoadTypes rt = ROADTYPES_NONE; |
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|
101 |
|
10724
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|
102 |
Engine *e; |
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|
103 |
FOR_ALL_ENGINES_OF_TYPE(e, VEH_ROAD) { |
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|
104 |
const EngineInfo *ei = &e->info; |
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105 |
|
10991
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106 |
if (HasBit(ei->climates, _settings_game.game_creation.landscape) && |
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107 |
(HasBit(e->player_avail, p) || _date >= e->intro_date + 365)) { |
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108 |
SetBit(rt, HasBit(ei->misc_flags, EF_ROAD_TRAM) ? ROADTYPE_TRAM : ROADTYPE_ROAD); |
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|
109 |
} |
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|
110 |
} |
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6871
diff
changeset
|
111 |
|
1c4a4a609f85
(svn r11950) [NewGRF_ports] -Sync with trunk r11566:11949.
rubidium
parents:
6871
diff
changeset
|
112 |
return rt; |
1c4a4a609f85
(svn r11950) [NewGRF_ports] -Sync with trunk r11566:11949.
rubidium
parents:
6871
diff
changeset
|
113 |
} |