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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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65
src/town_cmd.cpp
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@@ -45,6 +45,7 @@
#include "townname_type.h"
#include "core/random_func.hpp"
#include "core/backup_type.hpp"
#include "depot_base.h"
#include "table/strings.h"
#include "table/town_land.h"
@@ -2348,6 +2349,70 @@ CommandCost CmdExpandTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32
return CommandCost();
}
/**
* Delete a town (scenario editor only).
* @param tile Unused.
* @param flags Type of operation.
* @param p1 Town ID to delete.
* @param p2 Unused.
* @param text Unused.
* @return Empty cost or an error.
*/
CommandCost CmdDeleteTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
if (_game_mode != GM_EDITOR) return CMD_ERROR;
Town *t = Town::GetIfValid(p1);
if (t == NULL) return CMD_ERROR;
/* Stations refer to towns. */
const Station *st;
FOR_ALL_STATIONS(st) {
if (st->town == t) {
/* Non-oil rig stations are always a problem. */
if (!(st->facilities & FACIL_AIRPORT) || st->airport.type != AT_OILRIG) return CMD_ERROR;
/* We can only automatically delete oil rigs *if* there's no vehicle on them. */
CommandCost ret = DoCommand(st->airport.tile, 0, 0, DC_NONE, CMD_LANDSCAPE_CLEAR);
if (ret.Failed()) return ret;
}
}
/* Depots refer to towns. */
const Depot *d;
FOR_ALL_DEPOTS(d) {
if (d->town == t) return CMD_ERROR;
}
/* Check all tiles for town ownership. */
for (TileIndex tile = 0; tile < MapSize(); ++tile) {
switch (GetTileType(tile)) {
case MP_ROAD:
if (HasTownOwnedRoad(tile) && GetTownIndex(tile) == t->index) {
/* Can we clear this tile? */
CommandCost ret = DoCommand(tile, 0, 0, DC_NONE, CMD_LANDSCAPE_CLEAR);
if (ret.Failed()) return ret;
}
break;
case MP_TUNNELBRIDGE:
if (IsTileOwner(tile, OWNER_TOWN) &&
ClosestTownFromTile(tile, UINT_MAX) == t) {
/* Can we clear this bridge? */
CommandCost ret = DoCommand(tile, 0, 0, DC_NONE, CMD_LANDSCAPE_CLEAR);
if (ret.Failed()) return ret;
}
break;
default:
break;
}
}
/* The town destructor will delete everything related to the town. */
if (flags & DC_EXEC) delete t;
return CommandCost();
}
/**
* Factor in the cost of each town action.
* @see TownActions