/* $Id$ */

/** @file ai_town.cpp handles the town-related functions of the AITown class */

#include "ai_town.hpp"
#include "../../town.h"
#include "../../strings_func.h"
#include "../../town_type.h"
#include "../../core/alloc_func.hpp"
#include "table/strings.h"

TownID AITown::GetMaxTownID()
{
	return ::GetMaxTownIndex();
}

int32 AITown::GetTownCount()
{
	return ::GetNumTowns();
}

/* static */ bool AITown::IsValidTown(TownID town_id)
{
	return ::IsValidTownID(town_id);
}

char *AITown::GetName(TownID town_id)
{
	if (!AITown::IsValidTown(town_id)) return NULL;
	static const int len = 64;
	char *town_name = MallocT<char>(len);

	SetDParam(0, town_id);
	GetString(town_name, STR_TOWN, &town_name[len - 1]);

	return town_name;
}

int32 AITown::GetPopulation(TownID town_id)
{
	if (!AITown::IsValidTown(town_id)) return 0;
	const Town *t = ::GetTown(town_id);
	return t->population;
}

TileIndex AITown::GetLocation(TownID town_id)
{
	if (!AITown::IsValidTown(town_id)) return INVALID_TILE;
	const Town *t = ::GetTown(town_id);
	return t->xy;
}