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Codechange: Use EnumBitSet for RoadStopStatusFlags. (#14068)

pull/14069/head
Peter Nelson 2025-04-21 20:16:23 +01:00 committed by GitHub
parent 81edd1123a
commit 3aa82d5e63
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GPG Key ID: B5690EEEBB952194
4 changed files with 43 additions and 38 deletions
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4
src/newgrf_station.cpp
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@ -436,8 +436,8 @@ uint32_t Station::GetNewGRFVariable(const ResolverObject &object, uint8_t variab
case 0x8A: return this->had_vehicle_of_type;
case 0xF1: return (this->airport.tile != INVALID_TILE) ? this->airport.GetSpec()->ttd_airport_type : ATP_TTDP_LARGE;
case 0xF2: return (this->truck_stops != nullptr) ? this->truck_stops->status : 0;
case 0xF3: return (this->bus_stops != nullptr) ? this->bus_stops->status : 0;
case 0xF2: return (this->truck_stops != nullptr) ? this->truck_stops->status.base() : 0;
case 0xF3: return (this->bus_stops != nullptr) ? this->bus_stops->status.base() : 0;
case 0xF6: return this->airport.blocks.base();
case 0xF7: return GB(this->airport.blocks.base(), 8, 8);
}

22
src/roadstop.cpp
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@ -26,7 +26,7 @@ INSTANTIATE_POOL_METHODS(RoadStop)
RoadStop::~RoadStop()
{
/* When we are the head we need to free the entries */
if (HasBit(this->status, RSSFB_BASE_ENTRY)) {
if (this->status.Test(RoadStopStatusFlag::BaseEntry)) {
delete this->east;
delete this->west;
}
@ -86,7 +86,7 @@ void RoadStop::MakeDriveThrough()
if (south && rs_south->east != nullptr) { // (east != nullptr) == (west != nullptr)
/* There more southern tiles too, they must 'join' us too */
ClrBit(rs_south->status, RSSFB_BASE_ENTRY);
rs_south->status.Reset(RoadStopStatusFlag::BaseEntry);
this->east->occupied += rs_south->east->occupied;
this->west->occupied += rs_south->west->occupied;
@ -107,13 +107,13 @@ void RoadStop::MakeDriveThrough()
/* There is one to the south, but not to the north... so we become 'parent' */
this->east = rs_south->east;
this->west = rs_south->west;
SetBit(this->status, RSSFB_BASE_ENTRY);
ClrBit(rs_south->status, RSSFB_BASE_ENTRY);
this->status.Set(RoadStopStatusFlag::BaseEntry);
rs_south->status.Reset(RoadStopStatusFlag::BaseEntry);
} else {
/* We are the only... so we are automatically the master */
this->east = new Entry();
this->west = new Entry();
SetBit(this->status, RSSFB_BASE_ENTRY);
this->status.Set(RoadStopStatusFlag::BaseEntry);
}
/* Now update the lengths */
@ -153,7 +153,7 @@ void RoadStop::ClearDriveThrough()
if (south) {
/* There are more southern tiles too, they must be split;
* first make the new southern 'base' */
SetBit(rs_south->status, RSSFB_BASE_ENTRY);
rs_south->status.Set(RoadStopStatusFlag::BaseEntry);
rs_south->east = new Entry();
rs_south->west = new Entry();
@ -182,7 +182,7 @@ void RoadStop::ClearDriveThrough()
rs_south_base->east->Rebuild(rs_south_base);
rs_south_base->west->Rebuild(rs_south_base);
assert(HasBit(rs_north->status, RSSFB_BASE_ENTRY));
assert(rs_north->status.Test(RoadStopStatusFlag::BaseEntry));
rs_north->east->Rebuild(rs_north);
rs_north->west->Rebuild(rs_north);
} else {
@ -192,7 +192,7 @@ void RoadStop::ClearDriveThrough()
}
} else if (south) {
/* There is only something to the south. Hand over the base entry */
SetBit(rs_south->status, RSSFB_BASE_ENTRY);
rs_south->status.Set(RoadStopStatusFlag::BaseEntry);
rs_south->east->length -= TILE_SIZE;
rs_south->west->length -= TILE_SIZE;
} else {
@ -202,7 +202,7 @@ void RoadStop::ClearDriveThrough()
}
/* Make sure we don't get used for something 'incorrect' */
ClrBit(this->status, RSSFB_BASE_ENTRY);
this->status.Reset(RoadStopStatusFlag::BaseEntry);
this->east = nullptr;
this->west = nullptr;
}
@ -364,7 +364,7 @@ static DiagDirection GetEntryDirection(bool east, Axis axis)
*/
void RoadStop::Entry::Rebuild(const RoadStop *rs, int side)
{
assert(HasBit(rs->status, RSSFB_BASE_ENTRY));
assert(rs->status.Test(RoadStopStatusFlag::BaseEntry));
Axis axis = GetDriveThroughStopAxis(rs->xy);
if (side == -1) side = (rs->east == this);
@ -392,7 +392,7 @@ void RoadStop::Entry::Rebuild(const RoadStop *rs, int side)
*/
void RoadStop::Entry::CheckIntegrity(const RoadStop *rs) const
{
if (!HasBit(rs->status, RSSFB_BASE_ENTRY)) return;
if (!rs->status.Test(RoadStopStatusFlag::BaseEntry)) return;
/* The tile 'before' the road stop must not be part of this 'line' */
assert(IsDriveThroughStopTile(rs->xy));

53
src/roadstop_base.h
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@ -20,14 +20,13 @@ extern RoadStopPool _roadstop_pool;
/** A Stop for a Road Vehicle */
struct RoadStop : RoadStopPool::PoolItem<&_roadstop_pool> {
enum RoadStopStatusFlags : uint8_t {
RSSFB_BAY0_FREE = 0, ///< Non-zero when bay 0 is free
RSSFB_BAY1_FREE = 1, ///< Non-zero when bay 1 is free
RSSFB_BASE_ENTRY = 6, ///< Non-zero when the entries on this road stop are the primary, i.e. the ones to delete
RSSFB_ENTRY_BUSY = 7, ///< Non-zero when roadstop entry is busy
enum class RoadStopStatusFlag : uint8_t {
Bay0Free = 0, ///< Non-zero when bay 0 is free
Bay1Free = 1, ///< Non-zero when bay 1 is free
BaseEntry = 6, ///< Non-zero when the entries on this road stop are the primary, i.e. the ones to delete
EntryBusy = 7, ///< Non-zero when roadstop entry is busy
};
static constexpr uint8_t BAY_COUNT = 2; ///< Max. number of bays
using RoadStopStatusFlags = EnumBitSet<RoadStopStatusFlag, uint8_t>;
/** Container for each entry point of a drive through road stop */
struct Entry {
@ -65,15 +64,12 @@ struct RoadStop : RoadStopPool::PoolItem<&_roadstop_pool> {
void Rebuild(const RoadStop *rs, int side = -1);
};
uint8_t status = 0; ///< Current status of the Stop, @see RoadStopSatusFlag. Access using *Bay and *Busy functions.
RoadStopStatusFlags status{RoadStopStatusFlag::Bay0Free, RoadStopStatusFlag::Bay1Free}; ///< Current status of the Stop. Access using *Bay and *Busy functions.
TileIndex xy = INVALID_TILE; ///< Position on the map
RoadStop *next = nullptr; ///< Next stop of the given type at this station
/** Initializes a RoadStop */
inline RoadStop(TileIndex tile = INVALID_TILE) :
status((1 << BAY_COUNT) - 1),
xy(tile)
{ }
inline RoadStop(TileIndex tile = INVALID_TILE) : xy(tile) { }
~RoadStop();
@ -83,7 +79,7 @@ struct RoadStop : RoadStopPool::PoolItem<&_roadstop_pool> {
*/
inline bool HasFreeBay() const
{
return GB(this->status, 0, BAY_COUNT) != 0;
return this->status.Any({RoadStopStatusFlag::Bay0Free, RoadStopStatusFlag::Bay1Free});
}
/**
@ -93,8 +89,11 @@ struct RoadStop : RoadStopPool::PoolItem<&_roadstop_pool> {
*/
inline bool IsFreeBay(uint nr) const
{
assert(nr < BAY_COUNT);
return HasBit(this->status, nr);
switch (nr) {
case 0: return this->status.Test(RoadStopStatusFlag::Bay0Free);
case 1: return this->status.Test(RoadStopStatusFlag::Bay1Free);
default: NOT_REACHED();
}
}
/**
@ -103,7 +102,7 @@ struct RoadStop : RoadStopPool::PoolItem<&_roadstop_pool> {
*/
inline bool IsEntranceBusy() const
{
return HasBit(this->status, RSSFB_ENTRY_BUSY);
return this->status.Test(RoadStopStatusFlag::EntryBusy);
}
/**
@ -112,7 +111,7 @@ struct RoadStop : RoadStopPool::PoolItem<&_roadstop_pool> {
*/
inline void SetEntranceBusy(bool busy)
{
SB(this->status, RSSFB_ENTRY_BUSY, 1, busy);
this->status.Set(RoadStopStatusFlag::EntryBusy, busy);
}
/**
@ -160,11 +159,11 @@ private:
{
assert(this->HasFreeBay());
/* Find the first free bay. If the bit is set, the bay is free. */
/* Find the first free bay. */
uint bay_nr = 0;
while (!HasBit(this->status, bay_nr)) bay_nr++;
while (!this->IsFreeBay(bay_nr)) ++bay_nr;
ClrBit(this->status, bay_nr);
this->AllocateDriveThroughBay(bay_nr);
return bay_nr;
}
@ -174,8 +173,11 @@ private:
*/
inline void AllocateDriveThroughBay(uint nr)
{
assert(nr < BAY_COUNT);
ClrBit(this->status, nr);
switch (nr) {
case 0: this->status.Reset(RoadStopStatusFlag::Bay0Free); break;
case 1: this->status.Reset(RoadStopStatusFlag::Bay1Free); break;
default: NOT_REACHED();
}
}
/**
@ -184,8 +186,11 @@ private:
*/
inline void FreeBay(uint nr)
{
assert(nr < BAY_COUNT);
SetBit(this->status, nr);
switch (nr) {
case 0: this->status.Set(RoadStopStatusFlag::Bay0Free); break;
case 1: this->status.Set(RoadStopStatusFlag::Bay1Free); break;
default: NOT_REACHED();
}
}
};

2
src/saveload/station_sl.cpp
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@ -149,7 +149,7 @@ void AfterLoadRoadStops()
}
/* And then rebuild the data in those entries */
for (RoadStop *rs : RoadStop::Iterate()) {
if (!HasBit(rs->status, RoadStop::RSSFB_BASE_ENTRY)) continue;
if (!rs->status.Test(RoadStop::RoadStopStatusFlag::BaseEntry)) continue;
rs->GetEntry(DIAGDIR_NE)->Rebuild(rs);
rs->GetEntry(DIAGDIR_NW)->Rebuild(rs);