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(svn r20323) -Codechange: Move Delete town code to a command.

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This commit is contained in:
terkhen
2010-08-02 21:07:23 +00:00
parent ca0751adb8
commit 7a6df202d0
4 changed files with 69 additions and 57 deletions
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58
src/town_gui.cpp
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@@ -33,8 +33,6 @@
#include "townname_func.h"
#include "townname_type.h"
#include "core/geometry_func.hpp"
#include "station_base.h"
#include "depot_base.h"
#include "genworld.h"
#include "table/sprites.h"
@@ -466,65 +464,11 @@ public:
break;
case TVW_DELETE: // delete town - only available on Scenario editor
if (this->CanDeleteTown()) {
delete this->town;
} else {
ShowErrorMessage(STR_ERROR_TOWN_CAN_T_DELETE, INVALID_STRING_ID, WL_INFO);
}
DoCommandP(0, this->window_number, 0, CMD_DELETE_TOWN | CMD_MSG(STR_ERROR_TOWN_CAN_T_DELETE));
break;
}
}
/**
* Can we delete the town?
* Or in other words, does anything refer to this town?
* @return true if it's possible
*/
bool CanDeleteTown() const
{
/* Stations refer to towns. */
const Station *st;
FOR_ALL_STATIONS(st) {
if (st->town == this->town) {
/* Non-oil rig stations are always a problem. */
if (!(st->facilities & FACIL_AIRPORT) || st->airport.type != AT_OILRIG) return false;
/* We can only automatically delete oil rigs *if* there's no vehicle on them. */
if (DoCommand(st->airport.tile, 0, 0, DC_NONE, CMD_LANDSCAPE_CLEAR).Failed()) return false;
}
}
/* Depots refer to towns. */
const Depot *d;
FOR_ALL_DEPOTS(d) {
if (d->town == this->town) return false;
}
/* Check all tiles for town ownership. */
for (TileIndex tile = 0; tile < MapSize(); ++tile) {
switch (GetTileType(tile)) {
case MP_ROAD:
if (HasTownOwnedRoad(tile) && GetTownIndex(tile) == this->town->index) {
/* Can we clear this tile? */
if (DoCommand(tile, 0, 0, DC_NONE, CMD_LANDSCAPE_CLEAR).Failed()) return false;
}
break;
case MP_TUNNELBRIDGE:
if (IsTileOwner(tile, OWNER_TOWN) &&
ClosestTownFromTile(tile, UINT_MAX) == this->town) {
/* Can we clear this bridge? */
if (DoCommand(tile, 0, 0, DC_NONE, CMD_LANDSCAPE_CLEAR).Failed()) return false;
}
break;
default:
break;
}
}
return true;
}
virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
{
switch (widget) {