# newgrf_generic.h File Reference

Functions related to generic callbacks. More...

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

Go to the source code of this file.

## Enumerations
enum | AIConstructionEvent { AICE_TRAIN_CHECK_RAIL_ENGINE = 0x00, 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, AICE_ROAD_GET_FIRST_ENGINE = 0x01, AICE_ROAD_GET_NUMBER_ENGINES = 0x02, AICE_SHIP_CHECK_ENGINE = 0x00, AICE_SHIP_GET_FIRST_ENGINE = 0x01, AICE_SHIP_GET_NUMBER_ENGINES = 0x02, AICE_AIRCRAFT_CHECK_ENGINE = 0x00, AICE_STATION_GET_STATION_ID = 0x00 }
## Functions
void | ResetGenericCallbacks ()
| Reset all generic feature callback sprite groups.
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)
## Variables
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.

## Detailed Description

Functions related to generic callbacks.

Definition in file newgrf_generic.h.

## Enumeration Type Documentation

enum AIConstructionEvent

Enumerator:

  AICE_TRAIN_CHECK_RAIL_ENGINE | Check if we should build an engine.
  AICE_ROAD_CHECK_ENGINE | Check if we should build an engine.
  AICE_ROAD_GET_FIRST_ENGINE | Unused, we check all.
  AICE_ROAD_GET_NUMBER_ENGINES | Unused, we check all.
  AICE_SHIP_CHECK_ENGINE | Check if we should build an engine.
  AICE_SHIP_GET_FIRST_ENGINE | Unused, we check all.
  AICE_SHIP_GET_NUMBER_ENGINES | Unused, we check all.
  AICE_AIRCRAFT_CHECK_ENGINE | Check if we should build an engine.
  AICE_STATION_GET_STATION_ID | Get a station ID to build.

Definition at line 18 of file newgrf_generic.h.