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Change: Allow only one ship to leave depot at a time.

This commit is contained in:
Peter Nelson 2018-05-18 18:02:53 +01:00 committed by Charles Pigott
parent ebddd596c7
commit b98887c4a0
1 changed files with 12 additions and 0 deletions
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12
src/ship_cmd.cpp
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@ -319,6 +319,14 @@ void Ship::UpdateDeltaXY()
this->z_extent = 6;
}
/**
* Test-procedure for HasVehicleOnPos to check for a ship.
*/
static Vehicle *EnsureNoVisibleShipProc(Vehicle *v, void *data)
{
return v->type == VEH_SHIP && (v->vehstatus & VS_HIDDEN) == 0 ? v : NULL;
}
static bool CheckShipLeaveDepot(Ship *v)
{
if (!v->IsChainInDepot()) return false;
@ -333,6 +341,10 @@ static bool CheckShipLeaveDepot(Ship *v)
/* Don't leave depot if no destination set */
if (v->dest_tile == 0) return true;
/* Don't leave depot if another vehicle is already entering/leaving */
/* This helps avoid CPU load if many ships are set to start at the same time */
if (HasVehicleOnPos(v->tile, NULL, &EnsureNoVisibleShipProc)) return true;
TileIndex tile = v->tile;
Axis axis = GetShipDepotAxis(tile);