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(svn r8866) -Doc: added more comments to template struct MakeEnumPropsT

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KUDr 2007-02-23 21:29:50 +00:00
parent a14de92f38
commit 1c3d8fc1e3
2 changed files with 16 additions and 5 deletions
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15
src/helpers.hpp
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@ -80,12 +80,23 @@ template <typename T> static inline T delta(T a, T b) { return a < b ? b - a : a
/** Informative template class exposing basic enumeration properties used by several
* other templates below. Here we have only forward declaration. For each enum type
* we will create specialization derived from MakeEnumPropsT<>. */
* we will create specialization derived from MakeEnumPropsT<>.
* i.e.:
* template <> struct EnumPropsT<Track> : MakeEnumPropsT<Track, byte, TRACK_BEGIN, TRACK_END, INVALID_TRACK> {};
* followed by:
* typedef TinyEnumT<Track> TrackByte;
*/
template <typename Tenum_t> struct EnumPropsT;
/** Helper template class that makes basic properties of given enumeration type visible
* from outsize. It is used as base class of several EnumPropsT specializations each
* dedicated to one of commonly used enumeration types. */
* dedicated to one of commonly used enumeration types.
* @param Tenum_t enumeration type that you want to describe
* @param Tstorage_t what storage type would be sufficient (i.e. byte)
* @param Tbegin first valid value from the contiguous range (i.e. TRACK_BEGIN)
* @param Tend one past the last valid value from the contiguous range (i.e. TRACK_END)
* @param Tinvalid value used as invalid value marker (i.e. INVALID_TRACK)
*/
template <typename Tenum_t, typename Tstorage_t, Tenum_t Tbegin, Tenum_t Tend, Tenum_t Tinvalid>
struct MakeEnumPropsT {
typedef Tenum_t type; ///< enum type (i.e. Trackdir)

6
src/yapf/yapf_costrail.hpp
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@ -66,7 +66,7 @@ public:
}
/** return one tile cost. If tile is a tunnel entry, it is moved to the end of tunnel */
FORCEINLINE int OneTileCost(TileIndex& tile, Trackdir trackdir)
FORCEINLINE int OneTileCost(TileIndex prev_tile, TileIndex& tile, Trackdir trackdir)
{
int cost = 0;
// set base cost
@ -81,7 +81,7 @@ public:
case MP_STATION:
// penalty for passing station tiles
cost += Yapf().PfGetSettings().rail_station_penalty;
cost += Yapf().PfGetSettings().rail_station_penalty * DistanceManhattan(prev_tile, tile);
break;
default:
@ -202,7 +202,7 @@ public:
bool target_seen = Yapf().PfDetectDestination(tile, trackdir);
while (true) {
segment_cost += Yapf().OneTileCost(tile, trackdir);
segment_cost += Yapf().OneTileCost(prev_tile, tile, trackdir);
segment_cost += Yapf().CurveCost(prev_trackdir, trackdir);
segment_cost += Yapf().SlopeCost(tile, trackdir);
segment_cost += Yapf().SignalCost(n, tile, trackdir);