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(svn r2154) - Fix: [NPF] Vehicles should no longer try to drive through the back of depots and road stations. 

- Add: GetDepotDirection() wrapper function.
- Fix: [NPF] Ships can now actually reach buoys.
This commit is contained in:
matthijs 2005-04-05 22:06:02 +00:00
parent dfe6c34bf1
commit 92fe22382a
2 changed files with 37 additions and 8 deletions
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26
depot.h
View File

@ -71,6 +71,32 @@ static inline bool IsTileDepotType(TileIndex tile, TransportType type)
}
}
/**
* Returns the direction the exit of the depot on the given tile is facing.
*/
static inline uint GetDepotDirection(TileIndex tile, TransportType type)
{
assert(IsTileDepotType(tile, type));
switch (type)
{
case TRANSPORT_RAIL:
case TRANSPORT_ROAD:
/* Rail and road store a diagonal direction in bits 0 and 1 */
return _map5[tile] & 3;
case TRANSPORT_WATER:
/* Water is stubborn, it stores the directions in a different order. */
switch (_map5[tile] & 3) {
case 0: return 0;
case 1: return 2;
case 2: return 3;
case 3: return 1;
}
default:
return 0; /* Not reached */
}
}
Depot *GetDepotByTile(uint tile);
void InitializeDepot(void);
Depot *AllocateDepot(void);

19
npf.c
View File

@ -493,7 +493,7 @@ void NPFFollowTrack(AyStar* aystar, OpenListNode* current) {
flotr = FindLengthOfTunnel(src_tile, src_exitdir);
dst_tile = flotr.tile;
} else {
if (IsTileDepotType(src_tile, type)){
if (type != TRANSPORT_WATER && (IsRoadStationTile(src_tile) || IsTileDepotType(src_tile, type))){
/* This is a road station or a train or road depot. We can enter and exit
* those from one side only. Trackdirs don't support that (yet), so we'll
* do this here. */
@ -503,7 +503,7 @@ void NPFFollowTrack(AyStar* aystar, OpenListNode* current) {
if (IsRoadStationTile(src_tile))
exitdir = GetRoadStationDir(src_tile);
else /* Train or road depot. Direction is stored the same for both, in map5 */
exitdir = _map5[src_tile] & 3; /* Extract the direction from the map */
exitdir = GetDepotDirection(src_tile, type);
/* Let's see if were headed the right way */
if (src_trackdir != _dir_to_diag_trackdir[exitdir])
@ -529,9 +529,10 @@ void NPFFollowTrack(AyStar* aystar, OpenListNode* current) {
/* Check the owner of the tile */
if (
IsTileType(dst_tile, MP_RAILWAY) /* Rail tile */
IsTileType(dst_tile, MP_RAILWAY) /* Rail tile (also rail depot) */
|| IsTrainStationTile(dst_tile) /* Rail station tile */
|| IsTileDepotType(dst_tile, TRANSPORT_ROAD) /* Road depot tile */
|| IsTileType(dst_tile, MP_STATION) /* Station tile */
|| IsRoadStationTile(dst_tile) /* Road station tile */
|| IsTileDepotType(dst_tile, TRANSPORT_WATER) /* Water depot tile */
) /* TODO: Crossings, tunnels and bridges are "public" now */
/* The above cases are "private" tiles, we need to check the owner */
@ -545,10 +546,12 @@ void NPFFollowTrack(AyStar* aystar, OpenListNode* current) {
if (IsRoadStationTile(dst_tile))
exitdir = GetRoadStationDir(dst_tile);
else /* Road depot */
/* Find the trackdirs that are available for a depot with this orientation. They are in both directions */
exitdir = _map5[dst_tile] & 3; /* Extract the direction from the map */
ts = (1 << _dir_to_diag_trackdir[exitdir])
| (1 << _dir_to_diag_trackdir[_reverse_dir[exitdir]]);
exitdir = GetDepotDirection(dst_tile, type);
/* Find the trackdirs that are available for a depot or station with this
* orientation. They are only "inwards", since we are reaching this tile
* from some other tile. This prevents vehicles driving into depots from
* the back */
ts = (1 << _dir_to_diag_trackdir[exitdir]);
} else {
ts = GetTileTrackStatus(dst_tile, type);
}