File List

Here is a list of all documented files with brief descriptions:

src
ai
ai.hpp	Base functions for all AIs
ai_config.cpp	Implementation of AIConfig
ai_config.hpp	AIConfig stores the configuration settings of every AI
ai_core.cpp	Implementation of AI
ai_gui.cpp	Window for configuring the AIs
ai_gui.hpp	Window for configuring the AIs
ai_info.cpp	Implementation of AIInfo and AILibrary
ai_info.hpp	AIInfo keeps track of all information of an AI, like Author, Description, ..
ai_instance.cpp	Implementation of AIInstance
ai_instance.hpp	The AIInstance tracks an AI
ai_scanner.cpp	Allows scanning AI scripts
ai_scanner.hpp	Declarations of the class for AI scanner
blitter
32bpp_anim.cpp	Implementation of the optimized 32 bpp blitter with animation support
32bpp_anim.hpp	A 32 bpp blitter with animation support
32bpp_anim_sse2.cpp	Implementation of a partially SSE2 32bpp blitter with animation support
32bpp_anim_sse2.hpp	A partially SSE2 32 bpp blitter with animation support
32bpp_anim_sse4.cpp	Implementation of the SSE4 32 bpp blitter with animation support
32bpp_anim_sse4.hpp	A SSE4 32 bpp blitter with animation support
32bpp_base.cpp	Implementation of base for 32 bpp blitters
32bpp_base.hpp	Base for all 32 bits blitters
32bpp_optimized.cpp	Implementation of the optimized 32 bpp blitter
32bpp_optimized.hpp	Optimized 32 bpp blitter
32bpp_simple.cpp	Implementation of the simple 32 bpp blitter
32bpp_simple.hpp	Simple 32 bpp blitter
32bpp_sse2.cpp	Implementation of the SSE2 32 bpp blitter
32bpp_sse2.hpp	SSE2 32 bpp blitter
32bpp_sse4.cpp	Implementation of the SSE4 32 bpp blitter
32bpp_sse4.hpp	SSE4 32 bpp blitter
32bpp_sse_func.hpp	Functions related to SSE 32 bpp blitter
32bpp_sse_type.h	Types related to SSE 32 bpp blitter
32bpp_ssse3.cpp	Implementation of the SSSE3 32 bpp blitter
32bpp_ssse3.hpp	SSSE3 32 bpp blitter
40bpp_anim.cpp	Implementation of the animated 40 bpp blitter
40bpp_anim.hpp	Animated 40 bpp blitter
8bpp_base.cpp	Implementation of the base for all 8 bpp blitters
8bpp_base.hpp	Base for all 8 bpp blitters
8bpp_optimized.cpp	Implementation of the optimized 8 bpp blitter
8bpp_optimized.hpp	An optimized 8 bpp blitter
8bpp_simple.cpp	Implementation of the simple 8 bpp blitter
8bpp_simple.hpp	Simple (and slow) 8 bpp blitter
base.hpp	Base for all blitters
common.hpp	Common functionality for all blitter implementations
factory.hpp	Factory to 'query' all available blitters
null.cpp	A blitter that doesn't blit
null.hpp	The blitter that doesn't blit
core
alloc_type.hpp	Helper types related to the allocation of memory
backup_type.hpp	Class for backupping variables and making sure they are restored later
base_bitset_type.hpp	Base for bitset types that accept strong types, ones that need some casting like StrongType and enum class
bitmath_func.hpp	Functions related to bit mathematics
container_func.hpp	Some simple functions to help with accessing containers
convertible_through_base.hpp	Concept for unifying the convert through 'base()' behaviour of several 'strong' types
endian_func.hpp	Function to handling different endian machines
enum_type.hpp	Type (helpers) for enums
flatset_type.hpp	Flat set container implementation
format.hpp	String formatting functions and helpers
geometry_func.cpp	Geometry functions
geometry_func.hpp	Geometry functions
geometry_type.hpp	All geometry types in OpenTTD
kdtree.hpp	K-d tree template specialised for 2-dimensional Manhattan geometry
math_func.cpp	Math functions
math_func.hpp	Integer math functions
multimap.hpp	Multimap with deterministic ordering of items with equal keys
overflowsafe_type.hpp	An overflow safe integer-like type
pool_func.cpp	Implementation of PoolBase methods
pool_func.hpp	Some methods of Pool are placed here in order to reduce compilation time and binary size
pool_type.hpp	Definition of Pool, structure used to access PoolItems, and PoolItem, base structure for Vehicle, Town, and other indexed items
random_func.cpp	Implementation of the pseudo random generator
random_func.hpp	Pseudo random number generator
string_builder.cpp	Implementation of string composing
string_builder.hpp	Compose strings from textual and binary data
string_consumer.cpp	Implementation of string parsing
string_consumer.hpp	Parse strings
string_inplace.cpp	Inplace-replacement of textual and binary data
string_inplace.hpp	Inplace-replacement of textual and binary data
strong_typedef_type.hpp	Type (helpers) for making a strong typedef that is a distinct type
utf8.cpp	Handling of UTF-8 encoded data
utf8.hpp	Handling of UTF-8 encoded data
fontcache
freetypefontcache.cpp	FreeType font cache implementation
spritefontcache.cpp	Sprite fontcache implementation
spritefontcache.h	Sprite font cache implementation definition
truetypefontcache.cpp	Common base implementation for font file based font caches
truetypefontcache.h	Common base definition for font file based font caches
game
game.hpp	Base functions for all Games
game_config.cpp	Implementation of GameConfig
game_config.hpp	GameConfig stores the configuration settings of every Game
game_core.cpp	Implementation of Game
game_gui.cpp	Window for configuring GS
game_gui.hpp	Window for configuring GS
game_info.cpp	Implementation of GameInfo
game_info.hpp	GameInfo keeps track of all information of an Game, like Author, Description, ..
game_instance.cpp	Implementation of GameInstance
game_instance.hpp	The GameInstance tracks games
game_scanner.cpp	Allows scanning game scripts
game_scanner.hpp	Declarations of the class for GS scanner
game_text.cpp	Implementation of handling translated strings
game_text.hpp	Base functions regarding game texts
linkgraph
demands.cpp	Definition of demand calculating link graph handler
demands.h	Declaration of demand calculating link graph handler
flowmapper.cpp	Definition of flowmapper
flowmapper.h	Declaration of flow mapper; maps paths into flows at nodes
init.h	Declaration of initializing link graph handler
linkgraph.cpp	Definition of link graph classes used for cargo distribution
linkgraph.h	Declaration of link graph classes used for cargo distribution
linkgraph_base.h	Some typedefs for the main game
linkgraph_gui.cpp	Implementation of linkgraph overlay GUI
linkgraph_gui.h	Declaration of linkgraph overlay GUI
linkgraph_type.h	Declaration of link graph types used for cargo distribution
linkgraphjob.cpp	Definition of link graph job classes used for cargo distribution
linkgraphjob.h	Declaration of link graph job classes used for cargo distribution
linkgraphjob_base.h	Some typedefs for component handlers
linkgraphschedule.cpp	Definition of link graph schedule used for cargo distribution
linkgraphschedule.h	Declaration of link graph schedule used for cargo distribution
mcf.cpp	Definition of Multi-Commodity-Flow solver
mcf.h	Declaration of Multi-Commodity-Flow solver
refresh.cpp	Definition of link refreshing utility
refresh.h	Declaration of link refreshing utility
misc
alternating_iterator.hpp	Iterator adaptor that takes items alternating from a middle position
autorelease.hpp	Helper for std::unique_ptr to use an arbitrary function as the deleter
binaryheap.hpp	Binary heap implementation
dbg_helpers.cpp	Helpers for outputting debug information
dbg_helpers.h	Functions to be used for debug printings
endian_buffer.hpp	Endian-aware buffer
getoptdata.cpp	Library for parsing command line options
getoptdata.h	Library for parsing command-line options
hashtable.hpp	Hash table support
history.cpp	Implementation of functions for storing historical data
history_func.hpp	Functions for storing historical data
history_type.hpp	Types for storing historical data
lrucache.hpp	Size limited cache map with a least recently used eviction strategy
music
allegro_m.cpp	Playing music via allegro
allegro_m.h	Base support for playing music via allegro
bemidi.cpp	Support for BeOS midi
bemidi.h	Base of BeOS Midi support
cocoa_m.cpp	MIDI music player for MacOS X using CoreAudio
cocoa_m.h	Base of music playback via CoreAudio
dmusic.cpp	Playing music via DirectMusic
dmusic.h	Base of playing music via DirectMusic
extmidi.cpp	Playing music via an external player
extmidi.h	Base support for playing music via an external application
fluidsynth.cpp	Playing music via the fluidsynth library
fluidsynth.h	Base for FluidSynth music playback
midi.h	Declarations for MIDI data
midifile.cpp	Parser for standard MIDI files
midifile.hpp	Parser for standard MIDI files
music_driver.hpp	Base for all music playback
null_m.cpp	The music playback that is silent
null_m.h	Base for the silent music playback
win32_m.cpp	Music playback for Windows
win32_m.h	Base for Windows music playback
network
core
address.cpp	Implementation of the address
address.h	Wrapper for network addresses
config.cpp	Configuration of the connection strings for network stuff using environment variables
config.h	Configuration options of the network stuff
core.cpp	Functions used to initialize/shut down the core network
core.h	Base for all network types (UDP and TCP)
host.cpp	Functions related to getting host specific data (IPs)
host.h	Resolving of hostnames/IPs
http.h	Basic functions to send and receive HTTP packets
http_curl.cpp	CURL-based implementation for HTTP requests
http_none.cpp	Emscripten-based implementation for HTTP requests
http_shared.h	Shared functions for implementations of HTTP requests
http_winhttp.cpp	WinHTTP-based implementation for HTTP requests
network_game_info.cpp	Functions to convert NetworkGameInfo to Packet and back
network_game_info.h	Convert NetworkGameInfo to Packet and back
os_abstraction.cpp	OS specific implementations of functions of the OS abstraction layer for network stuff
os_abstraction.h	Includes and/or implementations for the network stuff
packet.cpp	Basic functions to create, fill and read packets
packet.h	Basic functions to create, fill and read packets
tcp.cpp	Basic functions to receive and send TCP packets
tcp.h	Basic functions to receive and send TCP packets
tcp_admin.cpp	Basic functions to receive and send TCP packets to and from the admin network
tcp_admin.h	Basic functions to receive and send TCP packets to and from the admin network
tcp_connect.cpp	Basic functions to create connections without blocking
tcp_content.cpp	Basic functions to receive and send Content packets
tcp_content.h	Basic functions to receive and send TCP packets to/from the content server
tcp_content_type.h	Basic types related to the content on the content server
tcp_coordinator.cpp	Basic functions to receive and send Game Coordinator packets
tcp_coordinator.h	Basic functions to receive and send TCP packets to/from the Game Coordinator server
tcp_game.cpp	Basic functions to receive and send TCP packets for game purposes
tcp_game.h	Basic functions to receive and send TCP packets for game purposes
tcp_listen.h	Basic functions to listen for TCP connections
tcp_stun.cpp	Basic functions to receive and send STUN packets
tcp_stun.h	Basic functions to receive and send TCP packets to/from the STUN server
tcp_turn.cpp	Basic functions to receive and send TURN packets
tcp_turn.h	Basic functions to receive and send TCP packets to/from the TURN server
udp.cpp	Basic functions to receive and send UDP packets
udp.h	Basic functions to receive and send UDP packets
network.cpp	Base functions for networking support
network.h	Basic functions/variables used all over the place
network_admin.cpp	Server part of the admin network protocol
network_admin.h	Server part of the admin network protocol
network_base.h	Base core network types and some helper functions to access them
network_chat_gui.cpp	GUI for handling chat messages
network_client.cpp	Client part of the network protocol
network_client.h	Client part of the network protocol
network_command.cpp	Command handling over network connections
network_content.cpp	Content sending/receiving part of the network protocol
network_content.h	Part of the network protocol handling content distribution
network_content_gui.cpp	Implementation of the Network Content related GUIs
network_content_gui.h	User interface for downloading files
network_coordinator.cpp	Game Coordinator sending/receiving part of the network protocol
network_coordinator.h	Part of the network protocol handling Game Coordinator requests
network_crypto.cpp	Implementation of the network specific cryptography helpers
network_crypto.h	Crypto specific bits of the network handling
network_crypto_internal.h	Internal bits to the crypto of the network handling
network_func.h	Network functions used by other parts of OpenTTD
network_gamelist.cpp	This file handles the GameList and the request to a server for data about the server
network_gamelist.h	Handling of the list of games
network_gui.cpp	Implementation of the Network related GUIs
network_gui.h	GUIs related to networking
network_internal.h	Variables and function used internally
network_query.cpp	Query part of the network protocol
network_query.h	Query part of the network protocol
network_server.cpp	Server part of the network protocol
network_server.h	Server part of the network protocol
network_stun.cpp	STUN sending/receiving part of the network protocol
network_stun.h	Part of the network protocol handling STUN requests
network_survey.cpp	Opt-in survey part of the network protocol
network_survey.h	Part of the network protocol handling opt-in survey
network_turn.cpp	TURN sending/receiving part of the network protocol
network_turn.h	Part of the network protocol handling TURN requests
network_type.h	Types used for networking
network_udp.cpp	This file handles the UDP related communication
network_udp.h	Sending and receiving UDP messages
newgrf
newgrf_act0.cpp	NewGRF Action 0x00 handler
newgrf_act0_aircraft.cpp	NewGRF Action 0x00 handler for aircraft
newgrf_act0_airports.cpp	NewGRF Action 0x00 handler for airports
newgrf_act0_badges.cpp	NewGRF Action 0x00 handler for badges
newgrf_act0_bridges.cpp	NewGRF Action 0x00 handler for bridges
newgrf_act0_canals.cpp	NewGRF Action 0x00 handler for canals
newgrf_act0_cargo.cpp	NewGRF Action 0x00 handler for cargo
newgrf_act0_globalvar.cpp	NewGRF Action 0x00 handler for global variables
newgrf_act0_houses.cpp	NewGRF Action 0x00 handler for houses
newgrf_act0_industries.cpp	NewGRF Action 0x00 handler for industries and industrytiles
newgrf_act0_objects.cpp	NewGRF Action 0x00 handler for objects
newgrf_act0_railtypes.cpp	NewGRF Action 0x00 handler for railtypes
newgrf_act0_roadstops.cpp	NewGRF Action 0x00 handler for roadstops
newgrf_act0_roadtypes.cpp	NewGRF Action 0x00 handler for roadtypes
newgrf_act0_roadvehs.cpp	NewGRF Action 0x00 handler for road vehicles
newgrf_act0_ships.cpp	NewGRF Action 0x00 handler for ships
newgrf_act0_sounds.cpp	NewGRF Action 0x00 handler for sounds
newgrf_act0_stations.cpp	NewGRF Action 0x00 handler for stations
newgrf_act0_trains.cpp	NewGRF Action 0x00 handler for trains
newgrf_act1.cpp	NewGRF Action 0x01 handler
newgrf_act10.cpp	NewGRF Action 0x10 handler
newgrf_act11.cpp	NewGRF Action 0x11 handler
newgrf_act12.cpp	NewGRF Action 0x12 handler
newgrf_act13.cpp	NewGRF Action 0x13 handler
newgrf_act14.cpp	NewGRF Action 0x14 handler
newgrf_act2.cpp	NewGRF Action 0x02 handler
newgrf_act3.cpp	NewGRF Action 0x03 handler
newgrf_act4.cpp	NewGRF Action 0x04 handler
newgrf_act5.cpp	NewGRF Action 0x05 handler
newgrf_act6.cpp	NewGRF Action 0x06 handler
newgrf_act7_9.cpp	NewGRF Action 0x07 and Action 0x09 handler
newgrf_act8.cpp	NewGRF Action 0x08 handler
newgrf_acta.cpp	NewGRF Action 0x0A handler
newgrf_actb.cpp	NewGRF Action 0x0B handler
newgrf_actc.cpp	NewGRF Action 0x0C handler
newgrf_actd.cpp	NewGRF Action 0x0D handler
newgrf_acte.cpp	NewGRF Action 0x0E handler
newgrf_actf.cpp	NewGRF Action 0x0F handler
newgrf_bytereader.cpp	NewGRF byte buffer reader implementation
newgrf_bytereader.h	NewGRF buffer reader definition
newgrf_internal.h	NewGRF internal processing state
newgrf_internal_vehicle.h	NewGRF internal processing state for vehicles
newgrf_stringmapping.cpp	NewGRF string mapping implementation
newgrf_stringmapping.h	NewGRF string mapping definition
os
macosx
crashlog_osx.cpp	OS X crash log handler
font_osx.cpp	Functions related to font handling on MacOS
font_osx.h	Functions related to font handling on MacOS
macos.h	Functions related to MacOS support
macos.mm	Code related to MacOSX
macos_objective_c.h	Includes of mac os specific headers which contain objective c
osx_main.cpp	Main entry for Mac OS X
osx_stdafx.h	OSX is different on some places
string_osx.cpp	Functions related to localized text support on OSX
string_osx.h	Functions related to localized text support on OSX
survey_osx.cpp	OSX implementation of OS-specific survey information
unix
crashlog_unix.cpp	Unix crash log handler
font_unix.cpp	Functions related to font handling on Unix/Fontconfig
font_unix.h	Functions related to detecting/finding the right font
library_loader_unix.cpp	Implementation of the LibraryLoader for Linux and MacOS
survey_unix.cpp	Unix implementation of OS-specific survey information
unix.cpp	Implementation of Unix specific file handling
unix_main.cpp	Main entry for Unix
windows
crashlog_win.cpp	Implementation of a crashlogger for Windows
font_win32.cpp	Functions related to font handling on Win32
font_win32.h	Functions related to font handling on Win32
library_loader_win.cpp	Implementation of the LibraryLoader for Windows
string_uniscribe.cpp	Functions related to laying out text on Win32
string_uniscribe.h	Functions related to laying out text on Win32
survey_win.cpp	Windows implementation of OS-specific survey information
win32.cpp	Implementation of MS Windows system calls
win32.h	Declarations of functions for MS windows systems
win32_main.cpp	Implementation main for Windows
pathfinder
yapf
nodelist.hpp	List of nodes used for the A-star pathfinder
yapf.h	Entry point for OpenTTD to YAPF
yapf.hpp	Base includes/functions for YAPF
yapf_base.hpp	Base classes for YAPF
yapf_cache.h	Entry point for OpenTTD to YAPF's cache
yapf_common.hpp	Commonly used classes and utilities for YAPF
yapf_costbase.hpp	Handling of cost determination
yapf_costcache.hpp	Caching of segment costs
yapf_costrail.hpp	Cost determination for rails
yapf_destrail.hpp	Determining the destination for rail vehicles
yapf_node.hpp	Node in the pathfinder's graph
yapf_node_rail.hpp	Node tailored for rail pathfinding
yapf_node_road.hpp	Node tailored for road pathfinding
yapf_node_ship.hpp	Node tailored for ship pathfinding
yapf_rail.cpp	The rail pathfinding
yapf_river_builder.cpp	Pathfinder for river building
yapf_river_builder.h	Pathfinder for river building
yapf_road.cpp	The road pathfinding
yapf_ship.cpp	Implementation of YAPF for ships
yapf_ship_regions.cpp	Implementation of YAPF for water regions, which are used for finding intermediate ship destinations
yapf_ship_regions.h	Implementation of YAPF for water regions, which are used for finding intermediate ship destinations
yapf_type.hpp	Types used by YAPF
follow_track.hpp	Template function for track followers
pathfinder_func.h	General functions related to pathfinders
pathfinder_type.h	General types related to pathfinders
water_regions.cpp	Handles dividing the water in the map into square regions to assist pathfinding
water_regions.h	Handles dividing the water in the map into regions to assist pathfinding
saveload
compat
ai_sl_compat.h	Loading for ai chunks before table headers were added
animated_tile_sl_compat.h	Loading for animated_tile chunks before table headers were added
autoreplace_sl_compat.h	Loading for autoreplace chunks before table headers were added
cargomonitor_sl_compat.h	Loading for cargomonitor chunks before table headers were added
cargopacket_sl_compat.h	Loading for cargopacket chunks before table headers were added
cheat_sl_compat.h	Loading for cheat chunks before table headers were added
company_sl_compat.h	Loading of company chunks before table headers were added
depot_sl_compat.h	Loading for depot chunks before table headers were added
economy_sl_compat.h	Loading for economy chunks before table headers were added
engine_sl_compat.h	Loading for engine chunks before table headers were added
game_sl_compat.h	Loading for game chunks before table headers were added
gamelog_sl_compat.h	Loading for gamelog chunks before table headers were added
goal_sl_compat.h	Loading of goal chunks before table headers were added
group_sl_compat.h	Loading of group chunks before table headers were added
industry_sl_compat.h	Loading of industry chunks before table headers were added
labelmaps_sl_compat.h	Loading of labelmaps chunks before table headers were added
linkgraph_sl_compat.h	Loading of linkgraph chunks before table headers were added
map_sl_compat.h	Loading for map chunks before table headers were added
misc_sl_compat.h	Loading for misc chunks before table headers were added
newgrf_sl_compat.h	Loading of newgrf chunks before table headers were added
object_sl_compat.h	Loading of object chunks before table headers were added
order_sl_compat.h	Loading of order chunks before table headers were added
settings_sl_compat.h	Loading of settings chunks before table headers were added
signs_sl_compat.h	Loading of signs chunks before table headers were added
station_sl_compat.h	Loading of station chunks before table headers were added
storage_sl_compat.h	Loading of storage chunks before table headers were added
story_sl_compat.h	Loading for story chunks before table headers were added
subsidy_sl_compat.h	Loading of subsidy chunks before table headers were added
town_sl_compat.h	Loading of town chunks before table headers were added
vehicle_sl_compat.h	Loading of vehicle chunks before table headers were added
afterload.cpp	Code updating data after game load
ai_sl.cpp	Handles the saveload part of the AIs
airport_sl.cpp	Code handling saving and loading airport ids
animated_tile_sl.cpp	Code handling saving and loading of animated tiles
autoreplace_sl.cpp	Code handling saving and loading of autoreplace rules
cargomonitor_sl.cpp	Code handling saving and loading of Cargo monitoring
cargopacket_sl.cpp	Code handling saving and loading of cargo packets
cheat_sl.cpp	Code handling saving and loading of cheats
company_sl.cpp	Code handling saving and loading of company data
depot_sl.cpp	Code handling saving and loading of depots
economy_sl.cpp	Code handling saving and loading of economy data
engine_sl.cpp	Code handling saving and loading of engines
game_sl.cpp	Handles the saveload part of the GameScripts
gamelog_sl.cpp	Code handling saving and loading of gamelog data
goal_sl.cpp	Code handling saving and loading of goals
group_sl.cpp	Code handling saving and loading of groups
industry_sl.cpp	Code handling saving and loading of industries
labelmaps_sl.cpp	Code handling saving and loading of rail type label mappings
league_sl.cpp	Code handling saving and loading of league tables
linkgraph_sl.cpp	Code handling saving and loading of link graphs
map_sl.cpp	Code handling saving and loading of map
misc_sl.cpp	Saving and loading of things that didn't fit anywhere else
newgrf_sl.cpp	Code handling saving and loading of newgrf config
newgrf_sl.h	Code handling saving and loading of NewGRF mappings
object_sl.cpp	Code handling saving and loading of objects
oldloader.cpp	Functions for handling of TTO/TTD/TTDP savegames
oldloader.h	Declarations of structures and functions used in loader of old savegames
oldloader_sl.cpp	Chunks and fix-ups for TTO/TTD/TTDP savegames
order_sl.cpp	Code handling saving and loading of orders
randomizer_sl.cpp	Code handling saving and loading of script randomizers
saveload.cpp	All actions handling saving and loading goes on in this file
saveload.h	Functions/types related to saving and loading games
saveload_error.hpp	Functions/types related to errors from savegames
saveload_filter.h	Declaration of filters used for saving and loading savegames
saveload_internal.h	Declaration of functions used in more save/load files
settings_sl.cpp	Handles the saveload part of the settings
signs_sl.cpp	Code handling saving and loading of economy data
station_sl.cpp	Code handling saving and loading of stations
storage_sl.cpp	Code handling saving and loading of persistent storages
story_sl.cpp	Code handling saving and loading of story pages
strings_sl.cpp	Code handling saving and loading of strings
subsidy_sl.cpp	Code handling saving and loading of subsidies
town_sl.cpp	Code handling saving and loading of towns and houses
vehicle_sl.cpp	Code handling saving and loading of vehicles
water_regions_sl.cpp	Handles saving and loading of water region data
waypoint_sl.cpp	Code handling saving and loading of waypoints
script
script_cmd.h	Command definitions related to scripts
script_config.cpp	Implementation of ScriptConfig
script_config.hpp	ScriptConfig stores the configuration settings of every Script
script_fatalerror.hpp	The definition of Script_FatalError
script_gui.cpp	Window for configuring the Scripts
script_gui.h	Window for configuring the scripts
script_info.cpp	Implementation of ScriptInfo
script_info.hpp	ScriptInfo keeps track of all information of a script, like Author, Description, ..
script_info_dummy.cpp	Implementation of a dummy Script
script_instance.cpp	Implementation of ScriptInstance
script_instance.hpp	The ScriptInstance tracks a script
script_scanner.cpp	Allows scanning for scripts
script_scanner.hpp	Declarations of the class for the script scanner
script_storage.hpp	Defines ScriptStorage and includes all files required for it
script_suspend.hpp	The Script_Suspend tracks the suspension of a script
squirrel.cpp	Implementation of the Squirrel class
squirrel.hpp	Defines the Squirrel class
squirrel_class.hpp	Defines templates for converting C++ classes to Squirrel classes
squirrel_helper.hpp	Declarations and parts of the implementation of the class for convert code
squirrel_helper_type.hpp	Helper structs for converting Squirrel data structures to C++
squirrel_std.cpp	Implements the Squirrel Standard Function class
squirrel_std.hpp	Defines the Squirrel Standard Function class
settingsgen
settingsgen.cpp	Tool to create computer-readable settings
sound
allegro_s.cpp	Playing sound via Allegro
allegro_s.h	Base for playing sound via Allegro
cocoa_s.cpp	Sound driver for cocoa
cocoa_s.h	Base for Cocoa sound handling
null_s.cpp	The sound driver that doesn't produce sound
null_s.h	Base for the sound of silence
sdl2_s.cpp	Playing sound via SDL2
sdl_s.h	Base for playing sound via SDL
sound_driver.hpp	Base for all sound drivers
win32_s.cpp	Handling of sound for Windows
win32_s.h	Base for Windows sound handling
xaudio2_s.cpp	XAudio2 sound driver
xaudio2_s.h	Base for XAudio2 sound handling
spriteloader
grf.cpp	Reading graphics data from (New)GRF files
grf.hpp	Base for reading sprites from (New)GRFs
makeindexed.cpp	Implementation for converting sprites from another source from 32bpp RGBA to indexed 8bpp
makeindexed.h	Base for converting sprites from another source from 32bpp RGBA to indexed 8bpp
sprite_file.cpp	Implementation of logic specific to the SpriteFile class
sprite_file_type.hpp	Random Access File specialised for accessing sprites
spriteloader.hpp	Base for loading sprites
strgen
strgen.cpp	Tool to create computer readable (stand-alone) translation files
strgen.h	Structures related to strgen
strgen_base.cpp	Tool to create computer readable (stand-alone) translation files
table
airport_defaults.h	Tables with default values for airports and airport tiles
airport_movement.h	Heart of the airports and their finite state machines
airporttile_ids.h	Enum of the default airport tiles
airporttiles.h	Tables with airporttile defaults
animcursors.h	This file defines all the the animated cursors
autorail.h	Highlight/sprite information for autorail
bridge_land.h	This file contains all the sprites for bridges
build_industry.h	Tables with default industry layouts and behaviours
cargo_const.h	Table of all default cargo types
clear_land.h	Tables with sprites for clear land and fences
company_face.h	This file contains all definitions for default company faces
control_codes.h	Control codes that are embedded in the translation strings
elrail_data.h	Stores all the data for overhead wire and pylon drawing
engines.h	This file contains all the data for vehicles
genland.h	Table used to generate deserts and/or rainforests
heightmap_colours.h	The colour tables for heightmaps
industry_land.h	Information about the behaviour of the default industry tiles
landscape_sprite.h	Offsets of sprites to replace for non-temperate landscapes
newgrf_debug_data.h	Data 'tables' for NewGRF debugging
object_land.h	Sprites to use and how to display them for object tiles
opengl_shader.h	OpenGL shader programs
palette_convert.h	Translation tables from one GRF to another GRF
palettes.h	The colour translation of the GRF palettes
pricebase.h	Table of all default price bases
railtypes.h	All the railtype-specific information is stored here
road_land.h	Sprite constructs for road depots
roadtypes.h	All the roadtype-specific information is stored here
roadveh_movement.h	Data about how a road vehicle must drive on a tile
signal_data.h	Data related to rail signals
sprites.h	This file contains all sprite-related enums and defines
station_land.h	Sprites to use and how to display them for station tiles
strgen_tables.h	Tables of commands for strgen
string_colours.h	The colour translation of GRF's strings
town_land.h	Sprites to use and how to display them for town tiles
townname.h	Namepart tables for the town name generator
track_data.h	Data related to rail tracks
track_land.h	Sprites to use and how to display them for train depot tiles
train_sprites.h	Sprites to use for trains
tree_land.h	Sprites to use and how to display them for tree tiles
unicode.h	Character mapping for using Unicode characters in OTTD
water_land.h	Sprites to use and how to display them for water tiles (depots/locks)
timer
timer.h	Definition of Interval and OneShot timers
timer_game_calendar.cpp	This file implements the timer logic for the game-calendar-timer
timer_game_calendar.h	Definition of the game-calendar-timer
timer_game_common.cpp	This file implements the common timer logic for the game-calendar timers
timer_game_common.h	Definition of the common class inherited by both calendar and economy timers
timer_game_economy.cpp	This file implements the timer logic for the game-economy-timer
timer_game_economy.h	Definition of the game-economy-timer
timer_game_realtime.cpp	This file implements the timer logic for the real time game-timer
timer_game_realtime.h	Definition of the real time game-timer
timer_game_tick.cpp	This file implements the timer logic for the tick-based game-timer
timer_game_tick.h	Definition of the tick-based game-timer
timer_manager.h	Definition of the TimerManager
timer_window.cpp	This file implements the timer logic for the Window system
timer_window.h	Definition of the Window system
video
cocoa
cocoa_keys.h	Mappings of Cocoa keys
cocoa_ogl.h	The Cocoa OpenGL video driver
cocoa_ogl.mm	Code related to the cocoa OpengL video driver
cocoa_v.h	The Cocoa video driver
cocoa_v.mm	Code related to the cocoa video driver(s)
cocoa_wnd.h	OS interface for the cocoa video driver
cocoa_wnd.mm	Code related to OS interface for the cocoa video driver
allegro_v.cpp	Implementation of the Allegro video driver
allegro_v.h	Base of the Allegro video driver
dedicated_v.cpp	Dedicated server video 'driver'
dedicated_v.h	Base for the dedicated video driver
null_v.cpp	The video driver that doesn't blit
null_v.h	Base of the video driver that doesn't blit
opengl.cpp	OpenGL video driver support
opengl.h	OpenGL video driver support
sdl2_default_v.cpp	Implementation of the default backend for SDL2 video driver
sdl2_default_v.h	Default backend of the SDL2 video driver
sdl2_opengl_v.cpp	Implementation of the OpenGL backend for SDL2 video driver
sdl2_opengl_v.h	OpenGL backend of the SDL2 video driver
sdl2_v.cpp	Implementation of the SDL2 video driver
sdl2_v.h	Base of the SDL2 video driver
video_driver.cpp	Common code between video driver implementations
video_driver.hpp	Base of all video drivers
win32_v.cpp	Implementation of the Windows (GDI) video driver
win32_v.h	Base of the Windows video driver
widgets
ai_widget.h	Types related to the ai widgets
airport_widget.h	Types related to the airport widgets
autoreplace_widget.h	Types related to the autoreplace widgets
bootstrap_widget.h	Types related to the bootstrap widgets
bridge_widget.h	Types related to the bridge widgets
build_vehicle_widget.h	Types related to the build_vehicle widgets
cheat_widget.h	Types related to the cheat widgets
company_widget.h	Types related to the company widgets
console_widget.h	Types related to the console widgets
date_widget.h	Types related to the date widgets
depot_widget.h	Types related to the depot widgets
dock_widget.h	Types related to the dock widgets
dropdown_widget.h	Types related to the dropdown widgets
engine_widget.h	Types related to the engine widgets
error_widget.h	Types related to the error widgets
fios_widget.h	Types related to the fios widgets
framerate_widget.h	Types related to the framerate windows widgets
game_widget.h	Types related to the GS widgets
genworld_widget.h	Types related to the genworld widgets
goal_widget.h	Types related to the goal widgets
graph_widget.h	Types related to the graph widgets
group_widget.h	Types related to the group widgets
help_widget.h	Types related to the help window widgets
highscore_widget.h	Types related to the highscore widgets
industry_widget.h	Types related to the industry widgets
intro_widget.h	Types related to the intro widgets
league_widget.h	Types related to the graph widgets
link_graph_legend_widget.h	Types related to the linkgraph_legend widgets
main_widget.h	Types related to the main widgets
misc_widget.h	Types related to the misc widgets
music_widget.h	Types related to the music widgets
network_chat_widget.h	Types related to the network chat widgets
network_content_widget.h	Types related to the network content widgets
network_widget.h	Types related to the network widgets
newgrf_debug_widget.h	Types related to the newgrf debug widgets
newgrf_widget.h	Types related to the newgrf widgets
news_widget.h	Types related to the news widgets
object_widget.h	Types related to the object widgets
order_widget.h	Types related to the order widgets
osk_widget.h	Types related to the osk widgets
picker_widget.h	Types related to the picker widgets
rail_widget.h	Types related to the rail widgets
road_widget.h	Types related to the road widgets
screenshot_widget.h	Types related to the screenshot widgets
script_widget.h	Types related to the script widgets
settings_widget.h	Types related to the settings widgets
sign_widget.h	Types related to the sign widgets
smallmap_widget.h	Types related to the smallmap widgets
station_widget.h	Types related to the station widgets
statusbar_widget.h	Types related to the statusbar widgets
story_widget.h	Types related to the story widgets
subsidy_widget.h	Types related to the subsidy widgets
terraform_widget.h	Types related to the terraform widgets
timetable_widget.h	Types related to the timetable widgets
toolbar_widget.h	Types related to the toolbar widgets
town_widget.h	Types related to the town widgets
transparency_widget.h	Types related to the transparency widgets
tree_widget.h	Types related to the tree widgets
vehicle_widget.h	Types related to the vehicle widgets
viewport_widget.h	Types related to the viewport widgets
waypoint_widget.h	Types related to the waypoint widgets
aircraft.h	Base for aircraft
aircraft_cmd.cpp	This file deals with aircraft and airport movements functionalities
aircraft_cmd.h	Command definitions related to aircraft
aircraft_gui.cpp	The GUI of aircraft
airport.cpp	Functions related to airports
airport.h	Various declarations for airports
airport_cmd.h	Command definitions related to airports
airport_gui.cpp	The GUI for airports
animated_tile.cpp	Everything related to animated tiles
animated_tile_func.h	Tile animation!
animated_tile_map.h	Maps accessors for animated tiles
articulated_vehicles.cpp	Implementation of articulated vehicles
articulated_vehicles.h	Functions related to articulated vehicles
autocompletion.cpp	Generic auto-completion engine
autocompletion.h	Generic auto-completion engine
autoreplace.cpp	Management of replacement lists
autoreplace_base.h	Base class for autoreplaces/autorenews
autoreplace_cmd.cpp	Deals with autoreplace execution but not the setup
autoreplace_cmd.h	Command definitions related to autoreplace
autoreplace_func.h	Functions related to autoreplacing
autoreplace_gui.cpp	GUI for autoreplace handling
autoreplace_gui.h	Functions related to the autoreplace GUIs
autoreplace_type.h	Types related to autoreplacing
autoslope.h	Functions related to autoslope
base_consist.cpp	Properties for front vehicles/consists
base_consist.h	Properties for front vehicles/consists
base_media_base.h	Generic functions for replacing base data (graphics, sounds)
base_media_func.h	Generic function implementations for base data (graphics, sounds)
base_media_graphics.h	Generic functions for replacing base graphics data
base_media_music.h	Generic functions for replacing base music data
base_media_sounds.h	Generic functions for replacing base sounds data
base_station_base.h	Base classes/functions for base stations
bitmap_type.h	Bitmap functions
bmp.cpp	Read and write support for bmps
bmp.h	Read and write support for bmps
bootstrap_gui.cpp	Barely used user interface for bootstrapping OpenTTD, i.e
bridge.h	Header file for bridges
bridge_gui.cpp	Graphical user interface for bridge construction
bridge_map.cpp	Map accessor functions for bridges
bridge_map.h	Map accessor functions for bridges
bridge_type.h	Header file for bridge types
build_vehicle_gui.cpp	GUI for building vehicles
cachecheck.cpp	Check caches
cargo_type.h	Types related to cargoes..
cargoaction.cpp	Implementation of cargo actions
cargoaction.h	Actions to be applied to cargo packets
cargomonitor.cpp	Implementation of the cargo transport monitoring
cargomonitor.h	Cargo transport monitoring declarations
cargopacket.cpp	Implementation of the cargo packets
cargopacket.h	Base class for cargo packets
cargotype.cpp	Implementation of cargoes
cargotype.h	Types/functions related to cargoes
cheat.cpp	Handling (loading/saving/initializing) of cheats
cheat_func.h	Functions related to cheating
cheat_gui.cpp	GUI related to cheating
cheat_type.h	Types related to cheating
clear_cmd.cpp	Commands related to clear tiles
clear_func.h	Functions related to clear (TileType::Clear) land
clear_map.h	Map accessors for 'clear' tiles
command.cpp	Handling of commands
command_func.h	Functions related to commands
command_type.h	Types related to commands
company_base.h	Definition of stuff that is very close to a company, like the company struct itself
company_cmd.cpp	Handling of companies
company_cmd.h	Command definitions related to companies
company_func.h	Functions related to companies
company_gui.cpp	Company related GUIs
company_gui.h	GUI Functions related to companies
company_manager_face.h	Functionality related to the company manager's face
company_type.h	Types related to companies
console.cpp	Handling of the in-game console
console_cmds.cpp	Implementation of the console hooks
console_func.h	Console functions used outside of the console code
console_gui.cpp	Handling the GUI of the in-game console
console_gui.h	GUI related functions in the console
console_internal.h	Internally used functions for the console
console_type.h	Globally used console related types
cpu.cpp	OS/CPU/compiler dependent CPU specific calls
cpu.h	Functions related to CPU specific instructions
crashlog.cpp	Implementation of generic function to be called to log a crash
crashlog.h	Functions to be called to log a crash
currency.cpp	Support for different currencies
currency_func.h	Functions to handle different currencies
currency_type.h	Types related to currencies
date_gui.cpp	Graphical selection of a date
date_gui.h	Functions related to the graphical selection of a date
debug.cpp	Handling of printing debug messages
debug.h	Functions related to debugging
dedicated.cpp	Forking support for dedicated servers
depot.cpp	Handling of depots
depot_base.h	Base for all depots (except hangars)
depot_cmd.cpp	Command Handling for depots
depot_cmd.h	Command definitions related to depots
depot_func.h	Functions related to depots
depot_gui.cpp	The GUI for depots
depot_map.h	Map related accessors for depots
depot_type.h	Header files for depots (not hangars)
direction_func.h	Different functions related to conversions between directions
direction_type.h	Different types to 'show' directions
disaster_vehicle.cpp	All disaster/easter egg vehicles are handled here
disaster_vehicle.h	All disaster vehicles
dock_cmd.h	Command definitions related to docks
dock_gui.cpp	GUI to create amazing water objects
driver.cpp	Base for all driver handling
driver.h	Base for all drivers (video, sound, music, etc)
dropdown.cpp	Implementation of the dropdown widget
dropdown_common_type.h	Common drop down list components
dropdown_func.h	Functions related to the drop down widget
dropdown_type.h	Types related to the drop down widget
economy.cpp	Handling of the economy
economy_base.h	Base classes related to the economy
economy_cmd.h	Command definitions related to the economy
economy_func.h	Functions related to the economy
economy_type.h	Types related to the economy
effectvehicle.cpp	Implementation of everything generic to vehicles
effectvehicle_base.h	Base class for all effect vehicles
effectvehicle_func.h	Functions related to effect vehicles
elrail.cpp	This file deals with displaying wires and pylons for electric railways
elrail_func.h	Header file for electrified rail specific functions
engine.cpp	Base for all engine handling
engine_base.h	Base class for engines
engine_cmd.h	Command definitions related to engines
engine_func.h	Functions related to engines
engine_gui.cpp	GUI to show engine related information
engine_gui.h	Engine GUI functions, used by build_vehicle_gui and autoreplace_gui
engine_type.h	Types related to engines
error.cpp	Reporting of errors
error.h	Functions related to errors
error_func.h	Error reporting related functions
error_gui.cpp	GUI related to errors
fileio.cpp	Standard in/out file operations
fileio_func.h	Functions for standard in/out file operations
fileio_type.h	Types for standard in/out file operations
fios.cpp	This file contains functions for building file lists for the save/load dialogs
fios.h	Declarations for savegames operations
fios_gui.cpp	GUIs for loading/saving games, scenarios, heightmaps, ..
fontcache.cpp	Cache for characters from fonts
fontcache.h	Functions to read fonts from files and cache them
framerate_gui.cpp	GUI for displaying framerate/game speed information
framerate_type.h	Types for recording game performance data
gamelog.cpp	Definition of functions used for logging of fundamental changes to the game
gamelog.h	Functions to be called to log fundamental changes to the game
gamelog_internal.h	Declaration shared among gamelog.cpp and saveload/gamelog_sl.cpp
genworld.cpp	Functions to generate a map
genworld.h	Functions related to world/map generation
genworld_gui.cpp	GUI to configure and show progress during map generation
gfx.cpp	Handling of drawing text and other gfx related stuff
gfx_func.h	Functions related to the gfx engine
gfx_layout.cpp	Handling of laying out text
gfx_layout.h	Functions related to laying out the texts
gfx_layout_fallback.cpp	Handling of laying out text as fallback
gfx_layout_fallback.h	Functions related to laying out the texts as fallback
gfx_layout_icu.cpp	Handling of laying out with ICU / Harfbuzz
gfx_layout_icu.h	Functions related to laying out the texts with ICU
gfx_type.h	Types related to the graphics and/or input devices
gfxinit.cpp	Initializing of the (GRF) graphics
gfxinit.h	Functions related to the graphics initialization
goal.cpp	Handling of goals
goal_base.h	Goal base class
goal_cmd.h	Command definitions related to goals
goal_gui.cpp	GUI for goals
goal_gui.h	Goal GUI functions
goal_type.h	Basic types related to goals
graph_gui.cpp	GUI that shows performance graphs
graph_gui.h	Graph GUI functions
ground_vehicle.cpp	Implementation of GroundVehicle
ground_vehicle.hpp	Base class and functions for all vehicles that move through ground
group.h	Base class for groups and group functions
group_cmd.cpp	Handling of the engine groups
group_cmd.h	Command definitions related to engine groups
group_gui.cpp	GUI for the group window
group_gui.h	Functions/definitions that have something to do with groups
group_type.h	Types of a group
gui.h	GUI functions that shouldn't be here
heightmap.cpp	Creating of maps from heightmaps
heightmap.h	Functions related to creating heightmaps from files
help_gui.cpp	GUI to access manuals and related
help_gui.h	GUI to access manuals and related
highscore.cpp	Definition of functions used for highscore handling
highscore.h	Declaration of functions and types defined in highscore.h and highscore_gui.h
highscore_gui.cpp	Definition of the HighScore and EndGame windows
hotkeys.cpp	Implementation of hotkey related functions
hotkeys.h	Hotkey related functions
house.h	Definition of HouseSpec and accessors
house_type.h	Declaration of basic house types and enums
industry.h	Base of all industries
industry_cmd.cpp	Handling of industry tiles
industry_cmd.h	Command definitions related to industries
industry_gui.cpp	GUIs related to industries
industry_map.h	Accessors to map for industries
industry_type.h	Types related to the industry
industrytype.h	Industry type specs
ini.cpp	Definition of the IniItem class, related to reading/writing '*.ini' files
ini_load.cpp	Definition of the IniLoadFile class, related to reading and storing '*.ini' files
ini_type.h	Types related to reading/writing '*.ini' files
intro_gui.cpp	The main menu GUI
landscape.cpp	Functions related to the landscape (slopes etc.)
landscape.h	Functions related to OTTD's landscape
landscape_cmd.h	Command definitions related to landscape (slopes etc.)
landscape_type.h	Types related to the landscape
language.h	Information about languages and their files
league_base.h	LeagueTable base class
league_cmd.cpp	Handling of league tables
league_cmd.h	Command definitions related to league tables
league_gui.cpp	GUI for league tables
league_gui.h	League table GUI functions
league_type.h	Basic types related to league tables
library_loader.h	Functions/types related to loading libraries dynamically
livery.h	Functions/types related to livery colours
main_gui.cpp	Handling of the main viewport
map.cpp	Base functions related to the map and distances on them
map_func.h	Functions related to maps
map_type.h	Types related to maps
misc.cpp	Misc functions that shouldn't be here
misc_cmd.cpp	Some misc functions that are better fitted in other files, but never got moved there..
misc_cmd.h	Miscellaneous command definitions
misc_gui.cpp	GUIs for a number of misc windows
mixer.cpp	Mixing of sound samples
mixer.h	Functions to mix sound samples
music.cpp	The songs that OpenTTD knows
music_gui.cpp	GUI for the music playback
newgrf.cpp	Base of all NewGRF support
newgrf.h	Base for the NewGRF implementation
newgrf_act5.h	Information about NewGRF Action 5
newgrf_airport.cpp	NewGRF handling of airports
newgrf_airport.h	NewGRF handling of airports
newgrf_airporttiles.cpp	NewGRF handling of airport tiles
newgrf_airporttiles.h	NewGRF handling of airport tiles
newgrf_animation_base.h	Function implementations related to NewGRF animation
newgrf_animation_type.h	Definitions related to NewGRF animation
newgrf_badge.cpp	Functionality for NewGRF badges
newgrf_badge.h	Functions related to NewGRF badges
newgrf_badge_config.cpp	Functionality for NewGRF badge configuration
newgrf_badge_config.h	Functions related to NewGRF badge configuration
newgrf_badge_gui.cpp	GUI functionalities for NewGRF badges
newgrf_badge_gui.h	GUI functions related to NewGRF badges
newgrf_badge_type.h	Types related to NewGRF badges
newgrf_callbacks.h	Callbacks that NewGRFs could implement
newgrf_canal.cpp	Implementation of NewGRF canals
newgrf_canal.h	Handling of NewGRF canals
newgrf_cargo.cpp	Implementation of NewGRF cargoes
newgrf_cargo.h	Cargo support for NewGRFs
newgrf_class.h	Header file for classes to be used by for example, NewGRF stations and airports
newgrf_class_func.h	Implementation of the NewGRF class' functions
newgrf_commons.cpp	Implementation of the class OverrideManagerBase and its descendance, present and future
newgrf_commons.h	This file simplifies and embeds a common mechanism of loading/saving and mapping of grf entities
newgrf_config.cpp	Finding NewGRFs and configuring them
newgrf_config.h	Functions to find and configure NewGRFs
newgrf_debug.h	Functions/types related to NewGRF debugging
newgrf_debug_gui.cpp	GUIs for debugging NewGRFs
newgrf_engine.cpp	NewGRF handling of engines
newgrf_engine.h	Functions for NewGRF engines
newgrf_generic.cpp	Handling of generic feature callbacks
newgrf_generic.h	Functions related to generic callbacks
newgrf_gui.cpp	GUI to change NewGRF settings
newgrf_house.cpp	Implementation of NewGRF houses
newgrf_house.h	Functions related to NewGRF houses
newgrf_industries.cpp	Handling of NewGRF industries
newgrf_industries.h	Functions for NewGRF industries
newgrf_industrytiles.cpp	NewGRF handling of industry tiles
newgrf_industrytiles.h	NewGRF handling of industry tiles
newgrf_object.cpp	Handling of object NewGRFs
newgrf_object.h	Functions related to NewGRF objects
newgrf_profiling.cpp	Profiling of NewGRF action 2 handling
newgrf_profiling.h	Profiling of NewGRF action 2 handling
newgrf_properties.h	Properties of NewGRF Action 0
newgrf_railtype.cpp	NewGRF handling of rail types
newgrf_railtype.h	NewGRF handling of rail types
newgrf_roadstop.cpp	Handling of NewGRF road stops
newgrf_roadstop.h	NewGRF definitions and structures for road stops
newgrf_roadtype.cpp	NewGRF handling of road types
newgrf_roadtype.h	NewGRF handling of road types
newgrf_sound.cpp	Handling NewGRF provided sounds
newgrf_sound.h	Functions related to NewGRF provided sounds
newgrf_spritegroup.cpp	Handling of primarily NewGRF action 2
newgrf_spritegroup.h	Action 2 handling
newgrf_station.cpp	Functions for dealing with station classes and custom stations
newgrf_station.h	Header file for NewGRF stations
newgrf_storage.cpp	Functionality related to the temporary and persistent storage arrays for NewGRFs
newgrf_storage.h	Functionality related to the temporary and persistent storage arrays for NewGRFs
newgrf_text.cpp	Implementation of Action 04 "universal holder" structure and functions
newgrf_text.h	Header of Action 04 "universal holder" structure and functions
newgrf_text_type.h	Header of Action 04 "universal holder" structure
newgrf_town.cpp	Implementation of the town part of NewGRF houses
newgrf_town.h	Functions to handle the town part of NewGRF towns
newgrf_townname.cpp	Implementation of Action 0F "universal holder" structure and functions
newgrf_townname.h	Header of Action 0F "universal holder" structure and functions
news_cmd.h	Command definitions related to news messages
news_func.h	Functions related to news
news_gui.cpp	GUI functions related to news messages
news_gui.h	GUI functions related to the news
news_type.h	Types related to news
object.h	Functions related to objects
object_base.h	Base for all objects
object_cmd.cpp	Handling of object tiles
object_cmd.h	Command definitions related to objects
object_gui.cpp	The GUI for objects
object_map.h	Map accessors for object tiles
object_type.h	Types related to object tiles
openttd.cpp	Functions related to starting OpenTTD
openttd.h	Some generic types
order_backup.cpp	Handling of order backups
order_backup.h	Functions related to order backups
order_base.h	Base class for orders
order_cmd.cpp	Handling of orders
order_cmd.h	Command definitions related to orders
order_func.h	Functions related to orders
order_gui.cpp	GUI related to orders
order_type.h	Types related to orders
osk_gui.cpp	The On Screen Keyboard GUI
palette.cpp	Handling of palettes
palette_func.h	Functions related to palettes
pbs.cpp	PBS support routines
pbs.h	PBS support routines
picker_func.h	Functions/types etc
picker_gui.cpp	File for dealing with picker windows
picker_gui.h	Functions/types etc
progress.cpp	Functions for modal progress windows
progress.h	Functions related to modal progress
provider_manager.h	Definition of the ProviderManager
querystring_gui.h	Base for the GUIs that have an edit box in them
rail.cpp	Implementation of rail specific functions
rail.h	Rail specific functions
rail_cmd.cpp	Handling of rail tiles
rail_cmd.h	Command definitions for rail
rail_gui.cpp	File for dealing with rail construction user interface
rail_gui.h	Functions/types etc
rail_map.h	Hides the direct accesses to the map array with map accessors
rail_type.h	The different types of rail
random_access_file.cpp	Actual implementation of the RandomAccessFile class
random_access_file_type.h	Class related to random access to files
rev.h	Declaration of OTTD revision dependent variables
road.cpp	Generic road related functions
road.h	Road specific functions
road_cmd.cpp	Commands related to road tiles
road_cmd.h	Road related functions
road_func.h	Functions related to roads
road_gui.cpp	GUI for building roads
road_gui.h	Functions/types related to the road GUIs
road_internal.h	Functions used internally by the roads
road_map.cpp	Complex road accessors
road_map.h	Map accessors for roads
road_type.h	Enums and other types related to roads
roadstop.cpp	Implementation of the roadstop base class
roadstop_base.h	Base class for roadstops
roadveh.h	Road vehicle states
roadveh_cmd.cpp	Handling of road vehicles
roadveh_cmd.h	Command definitions related to road vehicles
roadveh_gui.cpp	GUI for road vehicles
safeguards.h	A number of safeguards to prevent using unsafe methods
screenshot.cpp	The creation of screenshots!
screenshot.h	Functions to make screenshots
screenshot_bmp.cpp	BMP screenshot provider
screenshot_gui.cpp	GUI functions related to screenshots
screenshot_gui.h	GUI functions related to screenshots
screenshot_pcx.cpp	PCX screenshots provider
screenshot_png.cpp	PNG screenshot provider
screenshot_type.h	Types related to screenshot providers
settingentry_gui.cpp	Definitions of classes for handling display of individual configuration settings
settingentry_gui.h	Declarations of classes for handling display of individual configuration settings
settings.cpp	All actions handling saving and loading of the settings/configuration goes on in this file
settings_cmd.h	Command definitions related to settings
settings_func.h	Functions related to setting/changing the settings
settings_gui.cpp	GUI for settings
settings_gui.h	Functions for setting GUIs
settings_internal.h	Functions and types used internally for the settings configurations
settings_table.cpp	The tables of all the settings as well as the implementation of most of their callbacks
settings_table.h	Definition of the configuration tables of the settings
settings_type.h	Types related to global configuration settings
ship.h	Base for ships
ship_cmd.cpp	Handling of ships
ship_cmd.h	Command definitions related to ships
ship_gui.cpp	GUI for ships
signal.cpp	Functions related to rail signals updating
signal_func.h	Functions related to signals
signal_type.h	Types and classes related to signals
signature.cpp	Implementation of signature validation routines
signature.h	Routines to validate signature files
signs.cpp	Handling of signs
signs_base.h	Base class for signs
signs_cmd.cpp	Handling of sign related commands
signs_cmd.h	Command definitions related to signs
signs_func.h	Functions related to signs
signs_gui.cpp	The GUI for signs
signs_type.h	Types related to signs
slider.cpp	Implementation of the horizontal slider widget
slider_func.h	Functions related to the horizontal slider widget
slope_func.h	Functions related to slopes
slope_type.h	Definitions of a slope
smallmap_gui.cpp	GUI that shows a small map of the world with metadata like owner or height
smallmap_gui.h	Smallmap GUI functions
social_integration.cpp	Base implementation of social integration support
social_integration.h	Interface definitions for game to report/respond to social integration
sortlist_type.h	Base types for having sorted lists in GUIs
sound.cpp	Handling of playing sounds
sound_func.h	Functions related to sound
sound_type.h	Types related to sounds
soundloader.cpp	Handling of loading sounds
soundloader_func.h	Functions related to sound loaders
soundloader_opus.cpp	Loading of opus sounds
soundloader_raw.cpp	Loading of raw sounds
soundloader_type.h	Types related to sound loaders
soundloader_wav.cpp	Loading of wav sounds
source_type.h	Type for the source of cargo
sprite.cpp	Handling of sprites
sprite.h	Base for drawing complex sprites
spritecache.cpp	Caching of sprites
spritecache.h	Functions to cache sprites in memory
spritecache_internal.h	Internal functions to cache sprites in memory
spritecache_type.h	Types related to the sprite cache
station.cpp	Implementation of the station base class
station_base.h	Base classes/functions for stations
station_cmd.cpp	Handling of station tiles
station_cmd.h	Command definitions related to stations
station_func.h	Functions related to stations
station_gui.cpp	The GUI for stations
station_gui.h	Contains enums and function declarations connected with stations GUI
station_kdtree.h	Declarations for accessing the k-d tree of stations
station_layout_type.h	Functions related to station layouts
station_map.h	Maps accessors for stations
station_type.h	Types related to stations
statusbar_gui.cpp	The GUI for the bottom status bar
statusbar_gui.h	Functions, definitions and such used only by the GUI
stdafx.h	Definition of base types and functions in a cross-platform compatible way
story.cpp	Handling of stories
story_base.h	StoryPage base class
story_cmd.h	Command definitions related to stories
story_gui.cpp	GUI for stories
story_type.h	Basic types related to story pages
string.cpp	Handling of strings (std::string/std::string_view)
string_base.h	Base types for interacting with strings
string_func.h	Functions related to low-level strings
string_type.h	Types for strings
stringfilter.cpp	Searching and filtering using a stringterm
stringfilter_type.h	Searching and filtering using a stringterm
strings.cpp	Handling of translated strings
strings_func.h	Functions related to OTTD's strings
strings_internal.h	Types and functions related to the internal workings of formatting OpenTTD's strings
strings_type.h	Types related to strings
subsidy.cpp	Handling of subsidies
subsidy_base.h	Subsidy base class
subsidy_cmd.h	Command definitions related to subsidies
subsidy_func.h	Functions related to subsidies
subsidy_gui.cpp	GUI for subsidies
subsidy_type.h	Basic types related to subsidies
survey.cpp	Functions to survey the current game / system, for crashlog and network-survey
survey.h	Functions to survey the current game / system, for crashlog and network-survey
tar_type.h	Structs, typedefs and macros used for TAR file handling
terraform_cmd.cpp	Commands related to terraforming
terraform_cmd.h	Command definitions related to terraforming
terraform_gui.cpp	GUI related to terraforming the map
terraform_gui.h	GUI stuff related to terraforming
textbuf.cpp	Textbuffer handling
textbuf_gui.h	Stuff related to the text buffer GUI
textbuf_type.h	Stuff related to text buffers
texteff.cpp	Handling of text effects
texteff.hpp	Functions related to text effects
textfile_gui.cpp	Implementation of textfile window
textfile_gui.h	GUI functions related to textfiles
textfile_type.h	Types related to textfiles
tgp.cpp	OTTD Perlin Noise Landscape Generator, aka TerraGenesis Perlin
tgp.h	Functions for the Perlin noise enhanced map generator
thread.h	Base of all threads
tile_cmd.h	Generic 'commands' that can be performed on all tiles
tile_map.cpp	Global tile accessors
tile_map.h	Map writing/reading functions for tiles
tile_type.h	Types related to tiles
tilearea.cpp	Handling of tile areas
tilearea_type.h	Type for storing the 'area' of something uses on the map
tilehighlight_func.h	Functions related to tile highlights
tilehighlight_type.h	Types related to highlighting tiles
timetable.h	Functions related to time tabling
timetable_cmd.cpp	Commands related to time tabling
timetable_cmd.h	Command definitions related to timetables
timetable_gui.cpp	GUI for time tabling
toolbar_gui.cpp	Code related to the (main) toolbar
toolbar_gui.h	Stuff related to the (main) toolbar
town.h	Base of the town class
town_cmd.cpp	Handling of town tiles
town_cmd.h	Command definitions related to towns
town_gui.cpp	GUI for towns
town_kdtree.h	Declarations for accessing the k-d tree of towns
town_map.h	Map accessors for towns
town_type.h	Types related to towns
townname.cpp	Town name generators
townname_func.h	Town name generator stuff
townname_type.h	Definition of structures used for generating town names
track_func.h	Different conversion functions from one kind of track to another
track_type.h	All types related to tracks
train.h	Base for the train class
train_cmd.cpp	Handling of trains
train_cmd.h	Command definitions related to trains
train_gui.cpp	GUI for trains
transparency.h	Functions related to transparency
transparency_gui.cpp	The transparency GUI
transparency_gui.h	GUI functions related to transparency
transport_type.h	Base types related to transport
tree_cmd.cpp	Handling of tree tiles
tree_cmd.h	Command definitions related to tree tiles
tree_gui.cpp	GUIs for building trees
tree_map.h	Map accessors for tree tiles
tunnel_map.cpp	Map accessors for tunnels
tunnel_map.h	Map accessors for tunnels
tunnelbridge.h	Header file for things common for tunnels and bridges
tunnelbridge_cmd.cpp	This file deals with tunnels and bridges (non-gui stuff)
tunnelbridge_cmd.h	Command definitions related to tunnels and bridges
tunnelbridge_map.h	Functions that have tunnels and bridges in common
vehicle.cpp	Base implementations of all vehicles
vehicle_base.h	Base class for all vehicles
vehicle_cmd.cpp	Commands for vehicles
vehicle_cmd.h	Command definitions for vehicles
vehicle_func.h	Functions related to vehicles
vehicle_gui.cpp	The base GUI for all vehicles
vehicle_gui.h	Functions related to the vehicle's GUIs
vehicle_gui_base.h	Functions/classes shared between the different vehicle list GUIs
vehicle_type.h	Types related to vehicles
vehiclelist.cpp	Lists of vehicles
vehiclelist.h	Functions and type for generating vehicle lists
vehiclelist_cmd.h	Functions and type for serializing vehicle lists
vehiclelist_func.h	Functions and type for generating vehicle lists
viewport.cpp	Handling of all viewports
viewport_cmd.h	Command definitions related to viewports
viewport_func.h	Functions related to (drawing on) viewports
viewport_gui.cpp	Extra viewport window
viewport_kdtree.h	Declarations for accessing the k-d tree of viewports
viewport_sprite_sorter.h	Types related to sprite sorting
viewport_sprite_sorter_sse4.cpp	Sprite sorter that uses SSE4.1
viewport_type.h	Types related to viewports
void_cmd.cpp	Handling of void tiles
void_map.h	Map accessors for void tiles
water.h	Functions related to water management
water_cmd.cpp	Handling of water tiles
water_cmd.h	Command definitions related to water tiles
water_map.h	Map accessors for water tiles
waypoint.cpp	Handling of waypoints
waypoint_base.h	Base of waypoints
waypoint_cmd.cpp	Command Handling for waypoints
waypoint_cmd.h	Command definitions related to waypoints
waypoint_func.h	Functions related to waypoints
waypoint_gui.cpp	Handling of waypoints gui
widget.cpp	Handling of the default/simple widgets
widget_type.h	Definitions about widgets
window.cpp	Windowing system, widgets and events
window_func.h	Window functions not directly related to making/drawing windows
window_gui.h	Functions, definitions and such used only by the GUI
window_type.h	Types related to windows
zoom_func.h	Functions related to zooming
zoom_type.h	Types related to zooming in and out