OpenTTDDevBlackBook/Simulation/Vehicles

From OpenTTD

A vehicle is one of the fundamental entities in the game.

[edit] Types

There are 6 recognised vehicle types in the VehicleType enum:

• VEH_TRAIN: A train or carriage. Makes use of a linked list for the carriages.
• VEH_ROAD: A bus or truck. Will probably use the same linked list for articulated vehicles.
• VEH_SHIP
• VEH_AIRCRAFT
• VEH_SPECIAL
• VEH_DISASTER

[edit] Vehicle

The Vehicle struct has many variables and methods. Some of the important ones are:

Variables
VehicleTypeByte type	The vehicle type
PlayerByte owner	owner of the vehicle
TileIndex tile int32 x_pos int32 y_pos byte z_pos	Its current location
byte spritenum uint16 cur_image byte sprite_width byte sprite_height	Sprite infomation
TextEffectID fill_percent_te_id	a text-effect id to a loading indicator object
uint16 max_speed byte subspeed	Speed of the train
byte acceleration uint16 max_speed	Acceleration and max speed
byte vehstatus	Status
CargoID cargo_type uint16 cargo_cap	Type and amount of cargo
Order *orders	Linked list of orders
Methods
BeginLoading() LeaveStation()	Entering and leaving a station

There are many more methods and variables than this. For more info, see vehicle.h and vehicle.cpp. Vehicles are all subclassed, so there are other more specific methods and variables for trains, etc.