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(svn r5063) -Codechange: Add a function to determine the length of a platform (request by KUDr)

This commit is contained in:
celestar 2006-06-01 09:41:35 +00:00
parent f8982917ea
commit 65a6286345
3 changed files with 25 additions and 6 deletions
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1
station.h
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@ -200,6 +200,7 @@ void AfterLoadStations(void);
void GetProductionAroundTiles(AcceptedCargo produced, TileIndex tile, int w, int h, int rad);
void GetAcceptanceAroundTiles(AcceptedCargo accepts, TileIndex tile, int w, int h, int rad);
uint GetStationPlatforms(const Station *st, TileIndex tile);
uint GetPlatformLength(TileIndex tile, DiagDirection dir);
const DrawTileSprites *GetStationTileLayout(byte gfx);

22
station_cmd.c
View File

@ -1255,6 +1255,28 @@ uint GetStationPlatforms(const Station *st, TileIndex tile)
return len - 1;
}
/** Determines the REMAINING length of a platform, starting at (and including)
* the given tile.
* @param tile the tile from which to start searching. Must be a railway station tile
* @param dir The direction in which to search.
* @return The platform length
*/
uint GetPlatformLength(TileIndex tile, DiagDirection dir)
{
TileIndex start_tile = tile;
uint length = 0;
assert(IsRailwayStationTile(tile));
assert(dir < DIAGDIR_END);
do {
length ++;
tile += TileOffsByDir(dir);
} while (IsCompatibleTrainStationTile(tile, start_tile));
return length;
}
static int32 RemoveRailroadStation(Station *st, TileIndex tile, uint32 flags)
{
int w,h;

8
train_cmd.c
View File

@ -332,15 +332,11 @@ static int GetTrainAcceleration(Vehicle *v, bool mode)
if (IsTileType(v->tile, MP_STATION) && IsFrontEngine(v)) {
if (TrainShouldStop(v, v->tile)) {
int station_length = 0;
TileIndex tile = v->tile;
uint station_length = GetPlatformLength(v->tile, DirToDiagDir(v->direction));
int delta_v;
DEBUG(misc, 0) ("Length: %d", station_length);
max_speed = 120;
do {
station_length++;
tile = TILE_ADD(tile, TileOffsByDir(v->direction / 2));
} while (IsCompatibleTrainStationTile(tile, v->tile));
delta_v = v->cur_speed / (station_length + 1);
if (v->max_speed > (v->cur_speed - delta_v))