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Codechange: Simplified logic of ship leaving a depot. (#14661)

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This commit is contained in:
Kuhnovic
2025-09-26 13:35:11 +02:00
committed by GitHub
parent f4f1beba64
commit aa6fb0e9e5
1 changed files with 12 additions and 28 deletions
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40
src/ship_cmd.cpp
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@@ -359,7 +359,12 @@ static bool CheckReverseShip(const Ship *v, Trackdir *trackdir = nullptr)
return YapfShipCheckReverse(v, trackdir);
}
static bool CheckShipLeaveDepot(Ship *v)
/**
* Checks whether a ship should stay in the depot.
* @param v Ship to check.
* @return True if the ship should stay in the depot, false if it has to leave.
*/
static bool CheckShipStayInDepot(Ship *v)
{
if (!v->IsChainInDepot()) return false;
@@ -382,34 +387,13 @@ static bool CheckShipLeaveDepot(Ship *v)
return u->type == VEH_SHIP && u->cur_speed != 0;
})) return true;
TileIndex tile = v->tile;
Axis axis = GetShipDepotAxis(tile);
assert(v->GetVehicleTrackdir() == TRACKDIR_X_NE || v->GetVehicleTrackdir() == TRACKDIR_Y_NW);
v->direction = DiagDirToDir(TrackdirToExitdir(v->GetVehicleTrackdir()));
if (CheckReverseShip(v)) v->direction = ReverseDir(v->direction);
DiagDirection north_dir = ReverseDiagDir(AxisToDiagDir(axis));
TileIndex north_neighbour = TileAdd(tile, TileOffsByDiagDir(north_dir));
DiagDirection south_dir = AxisToDiagDir(axis);
TileIndex south_neighbour = TileAdd(tile, 2 * TileOffsByDiagDir(south_dir));
TrackBits north_tracks = DiagdirReachesTracks(north_dir) & GetTileShipTrackStatus(north_neighbour);
TrackBits south_tracks = DiagdirReachesTracks(south_dir) & GetTileShipTrackStatus(south_neighbour);
if (north_tracks && south_tracks) {
if (CheckReverseShip(v)) north_tracks = TRACK_BIT_NONE;
}
if (north_tracks) {
/* Leave towards north */
v->rotation = v->direction = DiagDirToDir(north_dir);
} else if (south_tracks) {
/* Leave towards south */
v->rotation = v->direction = DiagDirToDir(south_dir);
} else {
/* Both ways blocked */
return false;
}
v->state = AxisToTrackBits(axis);
v->state = AxisToTrackBits(GetShipDepotAxis(v->tile));
v->rotation = v->direction;
v->vehstatus.Reset(VehState::Hidden);
v->cur_speed = 0;
v->UpdateViewport(true, true);
SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
@@ -698,7 +682,7 @@ static void ShipController(Ship *v)
if (v->current_order.IsType(OT_LOADING)) return;
if (CheckShipLeaveDepot(v)) return;
if (CheckShipStayInDepot(v)) return;
v->ShowVisualEffect();