Commit Graph

231 Commits

Author SHA1 Message Date
peter1138
183f6f6d07 (svn r3372) - Fix: update signal states when building or removing rail station blocks 2006-01-06 17:45:43 +00:00
tron
e272b03fee (svn r3365) Staticise 36 functions 2006-01-05 12:40:50 +00:00
tron
246c126d25 (svn r3353) Simplify the automatic length adjustment algorithm for replacing trains: Use the length of the train before the replacement as reference length 2005-12-29 12:42:59 +00:00
truelight
8ffe9da482 (svn r3341) -Codechange: make mingw32 happy, and renamed Rectangle, because it already exists on that platform 2005-12-25 15:05:59 +00:00
tron
b06b3e2ca2 (svn r3313) Remove GPMI related changes from trunk
Revisions in detail: 2542, 3226 (partial), 3229, 3231, 3232, 3238, 3242-3245, 3251, 3253, 3260, 3263, 3265, 3266, 3269, 3277, 3278, 3279, 3283 (partial), 3304, 3305, 3306
2005-12-18 12:10:46 +00:00
truelight
531073bea0 (svn r3305) -Rename: Changed all instances of ottd_ related to the AI to ttai_ 2005-12-14 15:54:23 +00:00
tron
23bfc03054 (svn r3297) Staticise 2005-12-14 06:20:23 +00:00
peter1138
809b03c81a (svn r3282) - Codechange: Replace tests against CMD_ERROR with CmdFailed() 2005-12-10 12:05:39 +00:00
truelight
8733f49e88 (svn r3232) -Add: implemented the event-system for AIs
-Add: added several hooks (event-callbacks) for road-related-stuff
2005-11-23 15:08:29 +00:00
truelight
4845ff063b (svn r3227) -Codechange: [Savegame] removed 'minor' version, and renamed 'major' version to just: version. 2005-11-22 19:33:29 +00:00
bjarni
22a4679837 (svn r3218) -Feature: Multiheaded train engines will now stay in the same train
This means that any user attempt to remove a rear engine will tell the user to move the front engine instead
	This fixes the assert when moving multiheaded engines (introduced in r3144)
	Note: to make old savegames use this feature, some engines might be turned around in order to link engines in pairs

-Codechange: train subtype is now a bitmask
	This allows fast access to info like if it is a wagon or engine and if it is in front and so on
	Note: savegame version bump
2005-11-18 23:41:03 +00:00
peter1138
3e702afc08 (svn r3213) - Codechange: Clean up handling of road stops, avoiding unnecessary use of pointers and using the *BIT() macros. 2005-11-17 10:12:21 +00:00
tron
d177e5da67 (svn r3202) If cascade -> switch 2005-11-16 12:29:37 +00:00
tron
b9729fb72e (svn r3185) const 2005-11-15 09:00:02 +00:00
tron
1b0091e0d2 (svn r3184) GB/SB 2005-11-15 08:49:46 +00:00
tron
7b7593d092 (svn r3182) Fix braino in r3181 2005-11-14 20:20:24 +00:00
tron
f7abff5f96 (svn r3181) -Bracing
-Indentation
-Whitespace
-DeMorgan's Law
-Test with NULL or 0 for non-booleans
-'\0' instead of 0 for chars
-Remove redundantly redundant comments (like DoFoo(); // Do foo)
-Join multiple short lines with a single statement
-Split single lines with multiple statements
-Avoid assignments in if
2005-11-14 19:48:04 +00:00
tron
4a14a586e2 (svn r3173) Use the trinary operator and switch to improve readability
Also align short cases nicely
2005-11-13 14:54:09 +00:00
tron
ee15e3de13 (svn r3172) static, const 2005-11-13 13:43:55 +00:00
peter1138
ff8223150a (svn r3167) - NewGRF: Start moving custom station code to separate files.
Rewrite handling of station classes.
          Allow for more than 8 station tile layouts.
          Start of code to unload custom stations.
2005-11-12 00:19:34 +00:00
peter1138
b1075ca7a4 (svn r3166) Constify read-only accesses of custom stations 2005-11-11 20:34:16 +00:00
bjarni
5481dcd191 (svn r3155) -Feature: [autoreplace] autoreplace can now remove cars from too long trains
-Trains will now remember the length of stations it visits and sell cars
        when being autoreplaced if they became too long
        -If it needs to remove cars, then it starts from the front and sells
        all it can find until the train is short enough
        -This only works for trains, that knows the station length of the route
        so a full uninterrupted run is needed
        -a train needs 1-2 runs to detect if the shortest station is expanded
        -This feature can be turned on and off in the train replace window
        and each company can have it's own setting
        -NOTE: minor savegame version bump
2005-11-07 23:20:47 +00:00
tron
47137cefb7 (svn r3078) Some more stuff, which piled up:
- const, whitespace, indentation, bracing, GB/SB, pointless casts
- use the trinary operator where appropriate
- data types (uint[] -> AcceptedCargo, ...)
- if cascade -> switch
- if (ptr) -> if (ptr != NULL)
- DeMorgan's Law
- Fix some comments
- 0 -> '\0', change magic numbers to symbolic constants
2005-10-23 13:04:44 +00:00
tron
2cc2154ad2 (svn r3077) static, const, bracing, indentation, 0 -> '\0'/NULL, typos in comments, excess empty lines, minor other changes
nothing spectacular, just some stuff, which piled up
2005-10-22 06:39:32 +00:00
tron
ece9b9b2b6 (svn r3066) Constify the parameter of GetSlopeZ_*() 2005-10-19 14:49:46 +00:00
tron
66bf4f863d (svn r3049) Replace byte/int/uint by RailType where appropriate 2005-10-16 09:13:04 +00:00
tron
d5042d4ab2 (svn r3046) Replace some numbers with sprite names and fix a typo in the sprite list 2005-10-15 11:06:54 +00:00
tron
9fea263c77 (svn r3030) More work for GB/SB, this time concerning the waiting_acceptance attribute of stations 2005-10-11 13:54:21 +00:00
tron
76db75d81a (svn r3028) s/255/OWNER_SPECTATOR/ 2005-10-10 10:36:37 +00:00
tron
3397e202c8 (svn r3024) -Codechange: Another batch of replacements of int/uint/int16/byte/-1 with proper types and constants 2005-10-07 07:35:15 +00:00
tron
ae4a1f3675 (svn r3019) -Codechange: Replace explicit shifting/anding/oring with GB and SB 2005-10-05 07:20:26 +00:00
peter1138
d1591e864d (svn r3015) -NewGRF: Add a new sprite group result type, and support loading of callbacks results within random and "real" groups. (Not fully supported yet.) 2005-10-04 20:38:26 +00:00
peter1138
9fabe008a0 (svn r3014) -NewGRF, Codechange: Make all sprite group references be pointers instead of copying the data around. 2005-10-04 19:52:26 +00:00
tron
ce1c72cf6e (svn r2995) Replace 0xFF/0xFFFF with CT_INVALID/OWNER_SPECTATOR/INVALID_STATION where appropriate 2005-09-28 19:35:36 +00:00
Darkvater
8e6a911700 (svn r2962) - const correctness for all Get* functions and most Draw* functions that don't change their pointer parameters
- change a lot of byte player types to PlayerID
- beautify header files, same "#endif /* filename */" ending
2005-09-18 20:56:44 +00:00
Darkvater
7164ff86f9 (svn r2953) - Fix: [ 1257766 ] Cannot make ships go to an oil platform (oilrig has no station). While it is still possible that oilrigs end up without a station, it is only the case where no more stations can be built at all 2005-09-14 22:03:27 +00:00
Darkvater
2131f68ae2 (svn r2951) - Fix: [ 1259345 ] Changing engine in netgame opens train window for everyone
- Add IsLocalPlayer() which substitutes _local_player == _current_player
2005-09-14 18:03:38 +00:00
truelight
2e87864d0b (svn r2948) -Fix: the old AI needs a special flag that triggers all kind of special
abilities you really don't want to know about (free bridges, etc..)
       I removed this flag some revisions ago, but the Aircraft part
       depends on it, so I re-enabled it again..
2005-09-13 12:19:27 +00:00
truelight
991d5c6234 (svn r2921) -Codechange: moved all AI-code to 1 central place (ai/ai.c)
-Fix: removed the ability for the oldAI to cheat (this will criple him somewhat)
-Add: base-code for many improvements to come in the AI-system
-Add: added base-code for multiplayer AIs (DOES NOT WORK YET!)
2005-09-07 15:10:11 +00:00
tron
03e860d06d (svn r2819) Make variables, which are exclusive for internal use of the save/load code, static in saveload.c 2005-08-06 17:40:21 +00:00
celestar
fcf5ace08f (svn r2774) -Codechange: Removed TRACKTYPE_SPRITE_PITCH globally and replaced it by a member of RailtypeInfo 2005-07-31 22:53:57 +00:00
celestar
502718caa6 (svn r2731) -Fix [ 1244171 ]: Hangar orders are now properly invalidated as soon as the airport is removed 2005-07-28 05:47:54 +00:00
celestar
238e47cd42 (svn r2702) -Codechange: Cleaned up the sprite code and replaced many magic numbers
by enums. There remains work in gfx.c to move the "transparency" and
"recolor" bits around to make space for more sprites. However, 2800
additional sprites can now be loaded. There also remains cleanup and
Doxygen work on many of the header files.
2005-07-24 15:56:31 +00:00
tron
a227065ab7 (svn r2701) Insert Id tags into all source files 2005-07-24 14:12:37 +00:00
tron
559babcdc9 (svn r2673) Include functions.h directly, not globally via openttd.h 2005-07-22 07:02:20 +00:00
celestar
85f06d6e7b (svn r2658) -Codechange: Use MAKE_TRANSPARENT to display a transparented sprite 2005-07-20 22:05:13 +00:00
tron
ac66e3e28f (svn r2650) Convert many explicit shifts+ands to extract bits to invocations of GB - should be a bit nicer to read 2005-07-20 15:29:28 +00:00
tron
7c694f2553 (svn r2643) Get rid of some unnecessary casts 2005-07-19 21:49:35 +00:00
celestar
9ca761b065 (svn r2595) -Codechange: Introduced "IsSteepTileh" to find whether a tile is steep
(i.e. spans two height levels) and use it throughout the code.
-Codechange: Add CanBuildDepotByTileh to find if a tile is suitable to
build a depot on it. Wraps some bitmagic which seems quite unreadable at
first glance
2005-07-16 23:47:37 +00:00
tron
8c1d74162f (svn r2558) Change the internal map format from 7 arrays to one array of structs, this doesn't change the saved format for now. It's a stepping stone for further changes. 2005-07-13 18:04:01 +00:00
hackykid
60ddaf95f0 (svn r2516) - Feature: [pbs] Implement path-based-signalling. This allows multiple trains within the same signal block, provided their paths dont intersect. For this the block must have all exit and entry signals be pbs signals. Place these by ctrl-clicking 4 times on a normal signal.
- Feature: [pbs] Implement autoplacement of pbs blocks, when a block has an entry and an exit pbs signal, covert the entire block to pbs. Can be turned off in the patch settings.
 - Feature: [pbs] Allow showing of reserved status by making the tracks darker, when the pbs debug level is at least 1.
2005-07-04 14:58:55 +00:00
tron
bec5e4fb4c (svn r2487) Replace TILE_XY by TileXY/TileDiffXY 2005-06-25 16:44:57 +00:00
tron
61f6f07edd (svn r2486) Turn TILE_FROM_XY into an inline function and rename it to TileVirtXY 2005-06-25 06:15:43 +00:00
tron
3154e7148d (svn r2483) Replace almost 500 "uint tile" (and variants) with "TileIndex tile" 2005-06-24 12:38:35 +00:00
matthijs
9cb58e0bb3 (svn r2448) General cleanup of rail related code, more to follow.
* Add: rail.[ch] for rail-related enums and wrapper functions.
* Codechange: Removed dozens of magic numbers with below enums.
* Codechange: Rewrote CheckTrackCombination().
* Add: TILE_SIZE, TILE_PIXELS and TILE_HEIGHT constants.
* Add: enums RailTileType, RailTileSubtype, SignalType to mask against the map arrays.
* Add: enums Track, TrackBits, Trackdir, TrackdirBits for railway track data. (Note that the old RAIL_BIT constants are replaced by TRACK_BIT ones).
* Add: enums Direction and DiagDirection
* Codechange: Moved a bunch of track(dir) related lookup arrays from npf.[ch] to rail.[ch].
* Codechange: move RailType enum from tile.h to rail.h.
* Add: Wrapper functions for masking signal status in the map arrays: SignalAlongTrackdir, SignalAgainstTrackdir and SignalOnTrack.
* Add: Wrapper functions to access rail tiles, using above enums
* Add: Wrapper functions to modify tracks, trackdirs, directions, etc.
* Add: Wrapper functions for all lookup arrays in rail.[ch] (Arrays are still used in parts of the code)
* Codechange: Renamed some variables and arguments to better represent what they contain (railbit -> track, bits -> trackdirbits, etc.). 
* Codechange: Don't use FindLandscapeHeight() in CmdRemoveSingleRail(), since it returns way too much info. Use GetTileSlope() instead.
* Codechange: [NPF] Removed some unused globals and code from npf.c.
2005-06-16 18:04:02 +00:00
celestar
9b8cb17831 (svn r2441) -Feature: You can now give transfer order to set up feeder systems 2005-06-15 16:58:15 +00:00
tron
74541c1dcc (svn r2408) Introduce SetTileOwner() and use it 2005-06-04 12:13:24 +00:00
tron
0c4ecbe9ec (svn r2407) Use {Get,Is}TileOwner to get/check the owner of a tile and fix some bogus reads of _map_owner 2005-06-04 11:56:32 +00:00
Darkvater
b438b1248c (svn r2397) - CodeChange: rename all "ttd" files to "openttd" files. 2005-06-02 19:30:21 +00:00
Darkvater
55423efb06 (svn r2387) - CodeChange: made the saveload code more readable and also removed the 'byte' saveload arrays which means you can save an array of more than 255 elements, or bigger structs than 255 bytes. This doesn't yet solve the problem that a chunk can be a maximum of 16384 big.
- Fix: also fix an unnoticed error in SlSaveLoadConv() due to wrong types.
2005-05-30 22:16:05 +00:00
Darkvater
feec9cc7cf (svn r2382) - Fix: Check the airport type when building an airport 2005-05-30 13:35:39 +00:00
Darkvater
cb5107f97f (svn r2345) - Fix: Don't allow stuff to be renamed to nothing if we don't support it. Only valid ones are signs (delete) and waypoints (rename to default). 2005-05-17 20:58:58 +00:00
tron
fea5965679 (svn r2324) Introduce _cmd_text for passing strings with a command instead of abusing _decode_parameters as text buffer. This should prevent several possible buffer overruns and is a bit cleaner to use. As bonus it reduces the size of most command packets by 79 bytes. 2005-05-15 18:50:55 +00:00
Darkvater
5e6923e936 (svn r2290) - CodeChange: protect the next batch of commands. This brings us to a total of 61, which is 53% :)
- CodeChange: To correctly accept engine-prototypes, the best-player checking has been moved to its own function, I hope it functions the same as before.
- CodeChange: Added symbolic types of PlayerID, OrderID and EngineID. For engines also added GetEngine() and IsEngineIndex(), similar to the other such functions.
- CodeChange: To correctly build industries, some tables have been moved to build_industry.h. The only way to find out currently if an industry is valid in a climate is by looping all industries and checking if it matches. Also to comply with the patch setting build_rawmaterial_industries, it is assumed that these industries do not accept any cargo of any type. This can and probably should changed in the future to some flag in their struct. Also use _opt_ptr instead of _opt.
- CodeChange: implemented the HQ checking code inspired by MarkR2 in "[ 1190944 ] Many commands not checked for security".  Unfortunately it is impossible to prevent only deleting a HQ by a modified client atm.
- CodeChange: For insert order and modify order their parameters are implicitely truncated to 8 bits, instead of the 16 bits said in the comments.
2005-05-11 00:00:27 +00:00
Darkvater
ab954a934a (svn r2288) - CodeChange: protected the next batch of commands (41 so far, out of 115).
- CodeChange: changed the airport gui airport-type checking. Added function GetValidAirports() that returns bitmasked availibility, is also used for checking.
- CodeChange: to check tree-planting, 2 const arrays have been moved to table/tree_land.h (type and count)
- CodeChange: added IsTownIndex() in following of IsStationIndex(), etc.
- Fix (regression): road tunnels did not work anymore, forgot that their type was 0x200 (documented now)
2005-05-09 22:33:00 +00:00
Darkvater
edd8c87502 (svn r2286) - CodeChange: paramcheck the next batch of commands.
- Fix (regression): fix up terraform land where every player can terraform land (towns, map generation), and player can terraform different corners; used for building tunnels
2005-05-09 16:37:40 +00:00
Darkvater
2b96754673 (svn r2285) - Codechange: Fix up some of the missing things from server-checking; namely bridge-type, bridge-length, dragged end-tile (bridge/station), station_spread
- Fix: [ 1197256 ] max station spread patch < 7 does not work. Station spread was not taking into account when not using drag&drop. Fix this up, and add a callback to the settings window to immediately reflect the changes.
2005-05-09 13:26:15 +00:00
Darkvater
3ad11e0ad4 (svn r2279) - Fix: Check the parameters of the first 10 Commands. While there also add proper comments for the functions and fix up CmdFailed() 2005-05-07 10:26:12 +00:00
tron
b90e9d49ca (svn r2278) When renaming a station, check if the station exists and belongs to the correct player 2005-05-07 08:14:06 +00:00
matthijs
2ab5eee78b (svn r2255) - Fix: [ 9680363 ] [NPF] Broken buoy handling for ships
Buoys will now try to get within 3 tiles of a buoy instead of a the actual buoy tile. This gets ships to got past buoys in a realistic (IMO) way instead of barging right through them.
- Fix: [NPF] Trains get curves penalties sometimes even when the track is straight.
- Add: [NPF] Ships get a penalty for going over buoys now, so they will try to go around.
- Add: [NPF] Ships get a penalty for curves too, yay for straight lines.
- Add: TrackdirToTrack(), TrackToTrackdir(), IsDiagonalTrack() and IsDiagonalTrackdir() helper functions.
- Add: IsBuoy() and IsBuoyTile() helper functions.
- Codechange: Rearranged part of the control flow of ShipController(), removing a goto.
2005-05-02 22:13:20 +00:00
Darkvater
878cebaa70 (svn r2210) - Fix: When a road-station is deleted, also delete the assigned slots of all vehicles headed to that station. This fixes an assertion, thanks go to Tron for finding the cause. 2005-04-16 20:10:24 +00:00
tron
02f5818912 (svn r2189) Introduce and use IsCompatibleTrainStationTile()
This should prevent trains, which are longer than the station, to turn around without stopping under certain circumstances and fix speed limit for trains entering a station, when realistic accerlation is used
2005-04-12 10:31:26 +00:00
tron
4dbf5b37cc (svn r2176) Revise CheckOprhanedSlot():
- Don't assert the vehicle type, as it can be anything
- Don't touch the slot information of the vehicle, because it's possible that it is not a road vehicle anymore and even if it is, it has nothing to to with that slot
- Trim the debug printout, because the information about the vehicle is arbitrary
(Joint effort with Darkvater)
2005-04-10 20:48:43 +00:00
Darkvater
7ef681eaed (svn r2168) - Fix: Various stages of invisible trains, and wrong v->u.rail.track combinations. When a vehicle was sold its (possibly) assigned road slot for multislot was not cleared, thus resulting in a bug confusion. This should fix [ 1178520 ] Assertion failure in ai.c (invalid v->u.rail.track). With big thanks to TrueLight for the demo-recording patch, BJH for the wonderful savegame, Hackykid for his brilliant suggestions of the problem and Celestar for... ehm, making it all possible ;p 2005-04-08 22:44:06 +00:00
celestar
51eeea477b (svn r2097) -Codechange: [Multistop] Prettified the previous commit 2005-03-28 08:17:35 +00:00
celestar
f42d17c6b3 (svn r2096) -Codechange: [Multistop] Modfied some debug stuff 2005-03-28 08:12:21 +00:00
celestar
6e142d523e (svn r2055) -CodeChange: Begun introducting StationID 2005-03-25 10:40:58 +00:00
celestar
f179dc7acc (svn r2031) -Fix: Station #256 now gets cargo delivered as well 2005-03-19 23:17:59 +00:00
darkvater
cc99c3e262 (svn r2011) - Fix: [ 1162209 ] Fix OS/2 build (orudge) #2 2005-03-15 12:21:59 +00:00
tron
4bf173e9c1 (svn r1981) Typedef some structs and enums 2005-03-10 07:01:43 +00:00
tron
e6e3e69da4 (svn r1976) Cleanups - mostly indentation and fiddling with loops 2005-03-09 19:09:04 +00:00
Darkvater
3e51317236 (svn r1961) - Fix: [ 1158618 ] Segmentation fault when loading savegame, out of bounds array check. 2005-03-08 17:32:34 +00:00
pasky
bcc9dcd210 (svn r1958) GenerateStationName() tidyup. 2005-03-08 00:26:30 +00:00
tron
4325f13f74 (svn r1928) Miscellaneous cleanups (data types, whitespace, const correctness) 2005-03-05 18:44:26 +00:00
tron
3aa99a660e (svn r1927) Replace implementation of UpdateStationAcceptance(). The new one doesn't malloc() and calculates the station area in one pass instead of 3 2005-03-05 17:41:51 +00:00
tron
0c3927ce4a (svn r1921) -Fix: Out of bounds array access which caused oil rigs to accept other cargo types besides passengers and mail 2005-03-03 19:54:46 +00:00
celestar
d449145799 (svn r1872) -Fix: Fixed an inline problem which caused MSVC6 to not compile :/ 2005-02-13 21:51:47 +00:00
tron
204d08140a (svn r1867) Include tables/sprites.h only in files which need it 2005-02-13 11:18:02 +00:00
tron
f8d97a5f61 (svn r1839) Move GetTileSlope() and GetTileZ() into tile.[ch] and use more explicit types as parameters 2005-02-07 10:41:45 +00:00
tron
27dc506a03 (svn r1832) Next byte -> char iteration: custom names 2005-02-06 20:53:31 +00:00
truelight
020c1e9b6c (svn r1818) -Add: Dynamic orders (up to 64k orders) 2005-02-06 10:24:57 +00:00
truelight
e9c93f9c0c (svn r1817) -Codechange: Moved depot-functions to depot.c
-Codechange: Added wrappers around depot-access (GetDepot no exists)
-Codechange: Made depot-functions a bit more logic (no longer 
GetDepotByTile crashes your game when you request it on a non-depot tile)
-Add: made depots dynamic (yes, 64k depots are possible now)
2005-02-06 10:18:47 +00:00
tron
f0f85a7ef3 (svn r1803) Move debugging stuff into files of it's own 2005-02-05 15:58:59 +00:00
celestar
422ebcf8e0 (svn r1799) -Codechange: [ Multistop ] Added debug class "ms" and more debugging
output for multistops
2005-02-05 12:10:09 +00:00
truelight
093ae2b4b4 (svn r1789) -Fix: there is no need to save the index, it is done for us 2005-02-04 15:39:10 +00:00
truelight
10adda0d73 (svn r1788) -Add: Made RoadStops dynamic. You can now create up to 64k roadstops. 2005-02-04 15:31:30 +00:00
truelight
1938a73c90 (svn r1776) -Add: Dynamic stations. You can now have up to 64k of stations 2005-02-03 17:22:35 +00:00
truelight
ab3ed5c431 (svn r1770) -Fix: Hopefully last pieces of code that are containing a station-id
(and should be an uint16, not uint8)
2005-02-02 16:16:43 +00:00
tron
944bba1031 (svn r1769) Don't compute the same value twice, remove one function call 2005-02-02 15:45:53 +00:00
matthijs
a2dec6c32a (svn r1751) - Feature: New PathFinder (NPF).
- Supports trains, road vehicles and ships.
	- Uses A* pathfinding (same codebase as the new ai).
	- Currently unlimited search depth, so might perform badly on large maps/networks (especially ships).
	- Will always find a route if there is one.
	- Allows custom penalties for obstacles to be set in openttd.cfg (npf_ values).
	- With NPF enabled, ships can have orders that are very far apart. Be careful, this will break (ships get lost) when the old pathfinder is used again.
- Feature: Disabling 90 degree turns for trains and ships.
	- Requires NPF to be enabled.
	- Ships and trains can no longer make weird 90 degree turns on tile borders.
- Codechange: Removed table/directions.h.
	- table/directions.h contained ugly static tables but was included more than once. The tables, along with a few new ones are in npf.[ch] now. Better suggestions for a location?
- Fix: Binary heap in queue.c did not allocate enough space, resulting in a segfault.
- Codechange: Rewritten FindFirstBit2x64, added KillFirstBit2x64.
- Codechange: Introduced constant INVALID_TILE, to replace the usage of 0 as an invalid tile. Also replaces TILE_WRAPPED.
- Codechange: Moved TileAddWrap() to map.[ch] 
- Add TileIndexDiffCByDir(), TileIndexDiffCByDir(). 
- Codechange: Moved IsTrainStationTile() to station.h
- Add: IsRoadStationTile() and GetRoadStationDir().
2005-01-31 11:23:10 +00:00