truelight@84: #ifndef AI_H
truelight@84: #define AI_H
truelight@84: 
truelight@84: #include "aystar.h"
truelight@84: 
truelight@84: /*
truelight@84:  * These defines can be altered to change the behavoir of the AI
truelight@84:  *
truelight@84:  * WARNING:
truelight@84:  *   This can also alter the AI in a negative way. I will never claim these settings
truelight@84:  *   are perfect, but don't change them if you don't know what the effect is.
truelight@84:  */
truelight@84:  
truelight@84: // How many times it the H multiplied. The higher, the more it will go straight to the
truelight@84: //   end point. The lower, how more it will find the route with the lowest cost.
truelight@84: //   also: the lower, the longer it takes before route is calculated..
truelight@84: #define AI_PATHFINDER_H_MULTIPLER 100
truelight@84: 
truelight@84: // How many loops may AyStar do before it stops
truelight@84: //   0 = infinite
truelight@84: #define AI_PATHFINDER_LOOPS_PER_TICK 5
truelight@84: 
truelight@84: // How long may the AI search for one route?
truelight@84: //   0 = infinite
truelight@84: // This number is the number of tiles tested.
truelight@84: //  It takes (AI_PATHFINDER_MAX_SEARCH_NODES / AI_PATHFINDER_LOOPS_PER_TICK) ticks
truelight@84: //  to get here.. with 5000 / 10 = 500. 500 / 74 (one day) = 8 days till it aborts
truelight@84: //   (that is: if the AI is on VERY FAST! :p
truelight@84: #define AI_PATHFINDER_MAX_SEARCH_NODES 5000
truelight@84: 
truelight@84: // If you enable this, the AI is not allowed to make 90degree turns
truelight@84: #define AI_PATHFINDER_NO_90DEGREES_TURN
truelight@84: 
truelight@84: // Below are defines for the g-calculation
truelight@84: 
truelight@84: // Standard penalty given to a tile
truelight@84: #define AI_PATHFINDER_PENALTY 150
truelight@84: // The penalty given to a tile that is going up
truelight@84: #define AI_PATHFINDER_TILE_GOES_UP_PENALTY 450
truelight@84: // Changing direction is a penalty, to prevent curved ways (with that: slow ways)
truelight@84: #define AI_PATHFINDER_DIRECTION_CHANGE_PENALTY 200
truelight@84: // Same penalty, only for when road already exists
truelight@84: #define AI_PATHFINDER_DIRECTION_CHANGE_ON_EXISTING_ROAD_PENALTY 50
truelight@84: // A diagonal track cost the same as a straigh, but a diagonal is faster... so give
truelight@84: //  a bonus for using diagonal track
truelight@84: #ifdef AI_PATHFINDER_NO_90DEGREES_TURN
truelight@84: #define AI_PATHFINDER_DIAGONAL_BONUS 95
truelight@84: #else
truelight@84: #define AI_PATHFINDER_DIAGONAL_BONUS 75
truelight@84: #endif
truelight@84: // If a roadblock already exists, it gets a bonus
truelight@84: #define AI_PATHFINDER_ROAD_ALREADY_EXISTS_BONUS 140
truelight@84: // To prevent 3 direction changes in 3 tiles, this penalty is given in such situation
truelight@84: #define AI_PATHFINDER_CURVE_PENALTY 200
truelight@84: 
truelight@84: // Penalty a bridge gets per length
truelight@84: #define AI_PATHFINDER_BRIDGE_PENALTY 180
truelight@84: // The penalty for a bridge going up
truelight@84: #define AI_PATHFINDER_BRIDGE_GOES_UP_PENALTY 1000
truelight@84: 
truelight@84: // Tunnels are expensive...
truelight@84: //  Because of that, every tile the cost is increased with 1/8th of his value
truelight@84: //  This is also true if you are building a tunnel yourself
truelight@84: #define AI_PATHFINDER_TUNNEL_PENALTY 350
truelight@84: 
truelight@84: /*
truelight@84:  * Ai_New defines
truelight@84:  */
truelight@84: 
truelight@84: // How long may we search cities and industry for a new route?
truelight@84: #define AI_LOCATE_ROUTE_MAX_COUNTER 200
truelight@84: 
truelight@84: // How many days must there be between building the first station and the second station
truelight@84: //  within one city. This number is in days and should be more then 4 months.
truelight@84: #define AI_CHECKCITY_DATE_BETWEEN 180
truelight@84: 
truelight@84: // How many cargo is needed for one station in a city?
truelight@84: #define AI_CHECKCITY_CARGO_PER_STATION 60
truelight@84: // How much cargo must there not be used in a city before we can build a new station?
truelight@84: #define AI_CHECKCITY_NEEDED_CARGO 50
truelight@84: // When there is already a station which takes the same good and the rating of that
truelight@84: //  city is higher then this numer, we are not going to attempt to build anything
truelight@84: //  there
truelight@84: #define AI_CHECKCITY_CARGO_RATING 50
truelight@84: // But, there is a chance of 1 out of this number, that we do ;)
truelight@84: #define AI_CHECKCITY_CARGO_RATING_CHANCE 5
truelight@84: // If a city is too small to contain a station, there is a small chance
truelight@84: //  that we still do so.. just to make the city bigger!
truelight@84: #define AI_CHECKCITY_CITY_CHANCE 5
truelight@84: 
truelight@84: // This number indicates for every unit of cargo, how many tiles two stations maybe be away
truelight@84: //  from eachother. In other words: if we have 120 units of cargo in one station, and 120 units
truelight@84: //  of the cargo in the other station, both stations can be 96 units away from eachother, if the
truelight@84: //  next number is 0.4.
truelight@84: #define AI_LOCATEROUTE_BUS_CARGO_DISTANCE 0.4
truelight@84: #define AI_LOCATEROUTE_TRUCK_CARGO_DISTANCE 0.7
truelight@84: // In whole tiles, the minimum distance for a truck route
truelight@84: #define AI_LOCATEROUTE_TRUCK_MIN_DISTANCE 30
truelight@84: 
truelight@84: // The amount of tiles in a square from -X to +X that is scanned for a station spot
truelight@84: //  (so if this number is 10, 20x20 = 400 tiles are scanned for _the_ perfect spot
truelight@84: // Safe values are between 15 and 5
truelight@84: #define AI_FINDSTATION_TILE_RANGE 10
truelight@84: 
truelight@84: // Building on normal speed goes very fast. Idle this amount of ticks between every
truelight@84: //  building part. It is calculated like this: (4 - competitor_speed) * num + 1
truelight@84: //  where competitor_speed is between 0 (very slow) to 4 (very fast)
truelight@84: #define AI_BUILDPATH_PAUSE 10
truelight@84: 
truelight@84: // Minimum % of reliabilty a vehicle has to have before the AI buys it
truelight@84: #define AI_VEHICLE_MIN_RELIABILTY 60
truelight@84: 
truelight@84: // The minimum amount of money a player should always have
truelight@84: #define AI_MINIMUM_MONEY 15000
truelight@84: 
truelight@84: // If the most cheap route is build, how much is it going to cost..
truelight@84: // This is to prevent the AI from trying to build a route which can not be paid for
truelight@84: #define AI_MINIMUM_BUS_ROUTE_MONEY 25000
truelight@84: #define AI_MINIMUM_TRUCK_ROUTE_MONEY 35000
truelight@84: 
truelight@84: // The minimum amount of money before we are going to repay any money
truelight@84: #define AI_MINIMUM_LOAN_REPAY_MONEY 40000
truelight@84: // How many repays do we do if we have enough money to do so?
truelight@84: //  Every repay is 10000
truelight@84: #define AI_LOAN_REPAY 2
truelight@84: // How much income must we have before paying back a loan? Month-based (and looked at the last month)
truelight@84: #define AI_MINIMUM_INCOME_FOR_LOAN 7000
truelight@84: 
truelight@84: // If there is <num> time as much cargo in the station then the vehicle can handle
truelight@84: //  reuse the station instead of building a new one!
truelight@84: #define AI_STATION_REUSE_MULTIPLER 2
truelight@84: 
truelight@84: // No more then this amount of vehicles per station..
truelight@84: #define AI_CHECK_MAX_VEHICLE_PER_STATION 10
truelight@84: 
truelight@84: // How many thick between building 2 vehicles
truelight@84: #define AI_BUILD_VEHICLE_TIME_BETWEEN 74
truelight@84: 
truelight@84: /*
truelight@84:  * End of defines
truelight@84:  */
truelight@84: 
truelight@84: 
truelight@84: // This stops 90degrees curves
truelight@84: static const byte _illegal_curves[6] = {
truelight@84:     255, 255, // Horz and vert, don't have the effect
truelight@84:     5, // upleft and upright are not valid
truelight@84:     4, // downright and downleft are not valid
truelight@84:     2, // downleft and upleft are not valid
truelight@84:     3, // upright and downright are not valid
truelight@84: };
truelight@84: 
truelight@84: static const TileIndexDiff _tiles_around[4] = {
truelight@84:     TILE_XY(-1,0),
truelight@84:     TILE_XY(0,1),
truelight@84:     TILE_XY(1,0),
truelight@84:     TILE_XY(0,-1),
truelight@84: };
truelight@84: 
truelight@84: enum {
truelight@84:     AI_STATE_STARTUP = 0,
truelight@84:     AI_STATE_FIRST_TIME,
truelight@84:     AI_STATE_NOTHING,
truelight@84:     AI_STATE_WAKE_UP,
truelight@84:     AI_STATE_LOCATE_ROUTE,
truelight@84:     AI_STATE_FIND_STATION,
truelight@84:     AI_STATE_FIND_PATH,
truelight@84:     AI_STATE_FIND_DEPOT,
truelight@84:     AI_STATE_VERIFY_ROUTE,
truelight@84:     AI_STATE_BUILD_STATION,
truelight@84:     AI_STATE_BUILD_PATH,
truelight@84:     AI_STATE_BUILD_DEPOT,
truelight@84:     AI_STATE_BUILD_VEHICLE,
truelight@84:     AI_STATE_GIVE_ORDERS,
truelight@84:     AI_STATE_START_VEHICLE,
truelight@84:     AI_STATE_REPAY_MONEY,
truelight@84:     AI_STATE_ACTION_DONE,
truelight@84:     AI_STATE_STOP, // Temporary function to stop the AI
truelight@84: };
truelight@84: 
truelight@84: // Used for tbt (train/bus/truck)
truelight@84: enum {
truelight@84: 	AI_TRAIN = 0,
truelight@84: 	AI_BUS,
truelight@84: 	AI_TRUCK,
truelight@84: };
truelight@84: 
truelight@84: enum {
truelight@84: 	AI_ACTION_NONE = 0,
truelight@84: 	AI_ACTION_BUS_ROUTE,
truelight@84: 	AI_ACTION_TRUCK_ROUTE,
truelight@84: 	AI_ACTION_REPAY_LOAN,
truelight@84: };
truelight@84: 
truelight@84: // Used for from_type/to_type
truelight@84: enum {
truelight@84:     AI_NO_TYPE = 0,
truelight@84: 	AI_CITY,
truelight@84: 	AI_INDUSTRY,
truelight@84: };
truelight@84: 
truelight@84: #define AI_NO_CARGO 0xFF // Means that there is no cargo defined yet (used for industry)
truelight@84: #define AI_NEED_CARGO 0xFE // Used when the AI needs to find out a cargo for the route
truelight@84: #define AI_STATION_RANGE TILE_XY(TILE_X_MAX, TILE_Y_MAX)
truelight@84: 
truelight@84: #define AI_PATHFINDER_NO_DIRECTION (byte)-1
truelight@84: 
truelight@84: // Flags used in user_data
truelight@84: #define AI_PATHFINDER_FLAG_BRIDGE 1
truelight@84: #define AI_PATHFINDER_FLAG_TUNNEL 2
truelight@84: 
truelight@84: // A macro for mp_street, where 0x20 is depot
truelight@84: //   mp_tunnelbridge, where 0xf0 is a bridge, and 0x4/0x2 means: roadtunnel/bridge
truelight@84: #define AI_PATHFINDER_IS_ROAD(tile) ((IS_TILETYPE(tile, MP_STREET) && !(_map5[tile] & 0x20)) || \
truelight@84: (IS_TILETYPE(tile, MP_TUNNELBRIDGE) && \
truelight@84: 	(((_map5[tile] & 0x80) == 0 && (_map5[tile] & 0x4) == 0x4) || \
truelight@84: 	 ((_map5[tile] & 0x80) != 0 && (_map5[tile] & 0x2) == 0x2))))
truelight@84: 
truelight@84: typedef void AiNew_StateFunction(Player *p);
truelight@84: 
truelight@84: // ai_new.c
truelight@84: void AiNewDoGameLoop(Player *p);
truelight@84: 
truelight@84: // ai_pathfinder.c
truelight@84: AyStar *new_AyStar_AiPathFinder(int max_tiles_around, Ai_PathFinderInfo *PathFinderInfo);
truelight@84: void clean_AyStar_AiPathFinder(AyStar *aystar, Ai_PathFinderInfo *PathFinderInfo);
truelight@84: 
truelight@84: // ai_shared.c
truelight@84: int AiNew_GetRailDirection(uint tile_a, uint tile_b, uint tile_c);
truelight@84: int AiNew_GetRoadDirection(uint tile_a, uint tile_b, uint tile_c);
truelight@84: int AiNew_GetDirection(uint tile_a, uint tile_b);
truelight@84: 
truelight@84: // ai_build.c
truelight@84: bool AiNew_Build_CompanyHQ(Player *p, uint tile);
truelight@84: int AiNew_Build_Station(Player *p, byte type, uint tile, byte length, byte numtracks, byte direction, byte flag);
truelight@84: int AiNew_Build_Bridge(Player *p, uint tile_a, uint tile_b, byte flag);
truelight@84: int AiNew_Build_RoutePart(Player *p, Ai_PathFinderInfo *PathFinderInfo, byte flag);
truelight@84: int AiNew_PickVehicle(Player *p);
truelight@84: int AiNew_Build_Vehicle(Player *p, uint tile, byte flag);
truelight@84: int AiNew_Build_Depot(Player *p, uint tile, byte direction, byte flag);
truelight@84: 
truelight@84: 
truelight@84: #endif