cpp/openttd-patchpack/source Files · src/newgrf_generic.h

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rubidium

(svn r20593) -Fix: (rlongago, r20547): long ago the service interval was int16, after which is got converted to Date except in the order backup. Much later I copied the savegame snippets from a vehicle and applied that on the order backup. Presto, reading/writing 32 bits (of Date) into 16 bits of ancient style service interval. That would then "spoil" the name pointer and that eventually crashes OpenTTD as it's likely to be an invalid pointer.

/* $Id$ */

/*
 * This file is part of OpenTTD.
 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
 */

/** @file newgrf_generic.h Functions related to generic callbacks. */

#ifndef NEWGRF_GENERIC_H
#define NEWGRF_GENERIC_H

#include "cargo_type.h"
#include "industry_type.h"

enum AIConstructionEvent {
	AICE_TRAIN_CHECK_RAIL_ENGINE     = 0x00, ///< Check if we should build an engine
	AICE_TRAIN_CHECK_ELRAIL_ENGINE   = 0x01,
	AICE_TRAIN_CHECK_MONORAIL_ENGINE = 0x02,
	AICE_TRAIN_CHECK_MAGLEV_ENGINE   = 0x03,
	AICE_TRAIN_GET_RAIL_WAGON        = 0x08,
	AICE_TRAIN_GET_ELRAIL_WAGON      = 0x09,
	AICE_TRAIN_GET_MONORAIL_WAGON    = 0x0A,
	AICE_TRAIN_GET_MAGLEV_WAGON      = 0x0B,
	AICE_TRAIN_GET_RAILTYPE          = 0x0F,

	AICE_ROAD_CHECK_ENGINE           = 0x00, ///< Check if we should build an engine
	AICE_ROAD_GET_FIRST_ENGINE       = 0x01, ///< Unused, we check all
	AICE_ROAD_GET_NUMBER_ENGINES     = 0x02, ///< Unused, we check all

	AICE_SHIP_CHECK_ENGINE           = 0x00, ///< Check if we should build an engine
	AICE_SHIP_GET_FIRST_ENGINE       = 0x01, ///< Unused, we check all
	AICE_SHIP_GET_NUMBER_ENGINES     = 0x02, ///< Unused, we check all

	AICE_AIRCRAFT_CHECK_ENGINE       = 0x00, ///< Check if we should build an engine

	AICE_STATION_GET_STATION_ID      = 0x00, ///< Get a station ID to build
};

static const IndustryType IT_AI_UNKNOWN = 0xFE; ///< The AI has no specific industry in mind.
static const IndustryType IT_AI_TOWN    = 0xFF; ///< The AI actually wants to transport to/from a town, not an industry.

void ResetGenericCallbacks();
void AddGenericCallback(uint8 feature, const struct GRFFile *file, const struct SpriteGroup *group);

uint16 GetAiPurchaseCallbackResult(uint8 feature, CargoID cargo_type, uint8 default_selection, IndustryType src_industry, IndustryType dst_industry, uint8 distance, AIConstructionEvent event, uint8 count, uint8 station_size, const struct GRFFile **file);

#endif /* NEWGRF_GENERIC_H */