User:Pinsplash/Dissections of Valve maps/Half-Life 2

See also: Half-Life 2 map reference.

Background Maps

Entity	BG01	BG02	BG03	BG04	BG05	BG06	BG07	Notes
ai_goal_actbusy	3					1
ai_relationship	5	4	4			3	1	background07: Attempts to make scanners ignore the player, but fails to for some reason.
ai_speechfilter	1
ambient_generic	5	6	34	5	2	14
env_ar2explosion						4
env_bubbles		3
env_dustpuff		3
env_explosion				3		20
env_fade				1		5
env_fire			3			7
env_fog_controller	1	1		1		1
env_global					1
env_lightglow	4
env_microphone	1
env_physexplosion		1				3
env_physimpact		11
env_shake		1				5
env_smokestack			2			4
env_soundscape	1	2	4	8	6	1	1
env_spark						1
env_sprite	2			7	10
env_sun	1			1		1
filter_activator_class	1					1
filter_activator_name	1	1				1
filter_multi	1
func_areaportal	1			4	1	8
func_areaportalwindow				28		2
func_breakable		10	4	29	4	12
func_breakable_surf						5
func_brush	14				2	8	2
func_button					1
func_door	7		2					background01: Used as part of the combine lock prefab.
func_door_rotating			5
func_illusionary				56
func_lod				10
func_monitor	3				1
func_occluder		3	1	6		6
func_physbox		4
func_rotating			6				1
func_smokevolume	1		1
func_tracktrain			1	1
func_useableladder		1
game_text			1					background03: Unused message which would appear when Grigori died. It reads "Your ally died. Reloading ..."
infodecal	43	3	25	1	6	33		background04: Blood decal. Uncertain where it is.
info_constraint_anchor		1
info_player_start	1	1	1	1	1	1	2	background07: The player appears to not ever spawn at one, which is out of sight. The player always spawns at one near the top of the map.
info_node	95			2	11
info_node_air	34	17	12	11			11
info_node_air_hint	1	1	2				2
info_node_climb			6
info_node_hint	12		2			3
info_node_link			1
info_npc_spawn_destination	4
info_target	6	1	2	2	1	2	1	Every background map has at least 1 which is used as a target for the point_viewcontrol.
keyframe_rope	20		34	41	3		1
light		4	3	1		7	1
light_environment	4	3	4	6		1		Why multiple would exist within the same map is uncertain, but they all had the same settings (per map). Some had spawnflags set to 0 while others did not have it at all.
light_spot	4	2	9	1	4	4	15
logic_auto	3	1	2	1	1	3	1	Every background map has at least one for activating the point_viewcontrol.
logic_autosave					1
logic_case	1				1
logic_choreographed_scene	2
logic_relay	7	3			4
logic_timer		2
math_counter					1
move_rope	15	6	24	19	1		2
npc_citizen	3					1
npc_combine_camera	2
npc_combine_s							1
npc_crow		3	10
npc_cscanner	2						3
npc_helicopter		1
npc_heli_avoidsphere		1
npc_metropolice	2
npc_pigeon	1
npc_seagull				8
npc_stalker							1
npc_template_maker	7	1
path_corner	17		10	31
path_track		4	2	2
phys_ballsocket			4
phys_constraint				6
phys_hinge		2		1
phys_keepupright		1
phys_motor		1		1
phys_pulleyconstraint		1
phys_slideconstraint		1
phys_thruster		1
player_loadsaved			1
point_angularvelocitysensor		1
point_camera	1
point_spotlight	1		8	3	1	2	3
point_template	1		7	5		3
point_viewcontrol	1	1	1	1	1	1	1	Background maps use this for setting the view's position and angle, and to prevent any weird movements that may come from the player entity.
prop_door_rotating			2	3
prop_dynamic		15	14	41		30	8
prop_physics	2	31	2	15	4	3
scripted_sequence	1					1	1
shadow_control		1		1	1	1
sky_camera	1	1				1
trigger_autosave						1
trigger_multiple	5	1	8		1	7
trigger_once	1		2			15
water_lod_control		1		1
worldspawn	1	1	1	1	1	1	1	Many contain unused keyvalues similar to ones on light_environment and env_fog_controller. Another mysterious KV is "sounds".
Total	354	166	267	366	74	234	61

Trainstation

Entity	TS01	TS02	TS03	TS04	TS05	TS06	Notes
aiscripted_schedule	4	1	2	4	3	11
ai_changehintgroup						3
ai_goal_actbusy	6	6	12			1
ai_goal_actbusy_queue	1	1
ai_goal_police	4	8	9	2
ai_relationship	6	3	8	5	3	1
ai_script_conditions	2	5	2			1
ai_speechfilter	1	1	1	1
ambient_generic	21	15	16	9	73	26
cycler_actor	1				1		Used for Gman.
env_beam	12			3	44		Trainstation04: Used on elevator ropes that are never seeable...
env_bubbles					2
env_credits	1
env_effectscript					2
env_entity_maker					2	1	Trainstation05: One is for the clipboard Kleiner holds. The other creates a gravity gun; a leftover from Breen's original office room in d3_breen_01.
env_explosion					1
env_fade		1	1	1	2
env_fog_controller	3	1	1	1	1	1
env_flare						2
env_funnel	2						Trainstation01: Leftover from the HL1 scene.
env_global	2	2	2	1	1	1
env_hudhint	1	1			1	2
env_lightglow					8
env_message	1
env_microphone	3	2	5	1	2
env_muzzleflash						2
env_particlescript						6
env_physexplosion	2	10	5	6	8	1
env_physimpact	2	1
env_screenoverlay					3
env_shake	4			2	1		Trainstation01: Some are used for shaking the train as it moves and stops, and some are leftovers from the HL1 scene.
env_soundscape	10	12	2	10	6	4
env_spark			10		13
env_speaker	1		1	2	8
env_splash					1
env_sprite	17	21	5	6	40	4
env_starfield	1
env_steam	1				12		Trainstation01: Dust effect on the slave vortigaunt's broom.
env_sun		1	1	1		1
env_zoom	8			2
filter_activator_class	2	2	3			1
filter_activator_name	4	2	6		3
filter_multi	1	1
func_areaportal	3	10	14	10	2	1
func_areaportalwindow			24
func_breakable	1	1	36	1	1
func_breakable_surf				1			Trainstation04: This is over one of the windows in the attic the map starts in. A scanner is outside it, apparently trying in vain to bust through it.
func_brush	23	24	19	5	8	32	Trainstation03: One is called brush_youSuck. Unknown what it's meant to accomplish.
func_button	3	2			8
func_clip_vphysics	2	7			7
func_door	7	10	8	6	16		Often used in combine door locks, which really should be using func_button...
func_door_rotating	9				13
func_illusionary	4	2	49	14	1	3
func_ladderendpoint	2				2
func_monitor	14	12	5		5
func_occluder	3			5
func_physbox	1		4	4	2	5
func_rotating	1				14
func_smokevolume		1		1	8
func_tracktrain	7			2	2	6
func_train	3						Trainstation01: Used in the HL1 scene.
func_useableladder		1				1
func_wall	22
game_text	1					2	Trainstation01: Says "turrets killed you". See the note at trigger_hurt. Trainstation06: One says "metrocop instructs citizens to exit train", and the other is the same message from 01.
generic_actor				1	2		Trainstation04: Uses blackout.mdl, supposed to be part of the scene where Alyx saves Gordon but doesn't seem to do anything. Trainstation05: Both are for Lamarr.
infodecal	116	162	83	69	23	64
info_hint	4
info_ladder_dismount	6	7			2	7
info_landmark	1	2	2	2	2	2
info_lighting_relative	1			1	2
info_node	107	272	143	124	97	260
info_node_air	20	70	34		15	68
info_node_air_hint		8			2
info_node_hint	25	34	14	17	5	17
info_node_link			4	3
info_npc_spawn_destination		6		4
info_player_start	4	2	2	2	2	7
info_target	48	14	26	25	125	13
info_teleport_destination		3	2	1	7		Trainstation01: The fact this map uses trigger_teleport without using an info_teleport_destination is pretty solid evidence that the entity was obsolete before 2004.
item_battery						1
item_healthkit						1
item_suit					1	1
item_suitcharger	1				1		Trainstation01: Hidden in the closed off interrogation room.
keyframe_rope	35	27	24	39	45
light	23	7	17	10	18	5
light_dynamic	4			1
light_environment	5	5	2	3	7	5	All of the settings were identical per-map.
light_spot	40	21	20	16	74	15
logic_auto	6	3	6	2	2	3
logic_autosave			1	1		1
logic_branch	1	1
logic_case	3	2
logic_choreographed_scene	44	17	28	6	30	4
logic_collision_pair	1		8
logic_compare					2
logic_navigation	3	1	7	1
logic_relay	52	14	35	11	71	7
logic_timer	3	3	4		1	1
material_modify_control					2
math_counter	7	2		2	4
math_remap	1
monster_generic					1		Trainstation05: Used for the crow Lamarr kills.
move_rope	7	19	17	24	19
npc_alyx				1	1
npc_barney	1				1	1
npc_breen	1	1	1		1
npc_citizen	14	12	12		1
npc_combine_camera	3
npc_cscanner	3	5		1	3	2
npc_combinegunship				2
npc_crow					1
npc_eli					1
npc_enemyfinder			1			2
npc_furniture			1				Trainstation03: The animated door that a citizen holds at the end of the map.
npc_ichthyosaur					1
npc_kleiner	1				1
npc_maker	1				13
npc_metropolice	11	16	15	11	1	8
npc_mossman					1
npc_pigeon		1		8
npc_strider		1
npc_template_maker		8	2		10	3
npc_vehicledriver			1	2
npc_vortigaunt	1				1
path_corner	15	24	3		9	16
path_track	58			48	12	67
phys_constraintsystem		2	2
phys_hinge	1	10	2			5
phys_lengthconstraint		4	4
phys_ragdollconstraint		2
phys_spring					1
phys_thruster		1
player_speedmod					1
point_camera	4	1	1		6
point_playermoveconstraint					1
point_spotlight	19	10	7	1	2	3
point_teleport	1			1	3
point_template	18	9	6	14	3	9
point_tesla					5
point_viewcontrol	6			1	1
prop_door_rotating	9	6	8	6	3	1
prop_dynamic	74	6	22	10	63	5
prop_physics	178	66	146	61	65	54
prop_ragdoll			5	8
prop_vehicle_jeep			1	2			Trainstation03, Trainstation04: Used for APCs.
script_intro	1				1
scripted_sequence	18	16	15	4	29
shadow_control	1	1	1	1	1	1
sky_camera		1	1	1	1	1
trigger_changelevel	1	3	4	4	3	2
trigger_hurt	1			1		1	Trainstation01: Inaccessible and configured improperly. At some point during development, a player could voluntarily run away from the train station into this trigger, which would kill them and show a message simply saying "turrets killed you". Valve decided to substitute this rather brutal containment method with a fence.
trigger_look						1
trigger_multiple	29	29	17	8	11	7
trigger_once	30	19	24	16	11	13
trigger_physics_trap					1		Trainstation05: Unused. Apparently, this would dissolve any physics objects the player snuck into the teleporter while Alyx was inside.
trigger_push			1		1	1	Trainstation05: Discourages the player from jumping up to the balcony Barney appears on in the next map, which is clipped off anyway.
trigger_teleport	1	4	2	1	15
trigger_transition	1	1	1	2	1
trigger_wind	2
water_lod_control					1
weapon_crowbar						1
worldspawn	1	1	1	1	1	1
Total	1197	1134	1006	721	1180	808

Canals (1/2)

Entity	Canals01	Canals01a	Canals02	Canals03	Canals05	Canals06	Notes
aiscripted_schedule	19	9		22	6	3
ai_changehintgroup	1					2
ai_goal_actbusy				1
ai_goal_assault	11	10
ai_goal_standoff				1
ai_relationship	11	17	6	9	1	4
ai_script_conditions	4	4			2	1
ai_sound		2
ai_speechfilter					1
ambient_generic	32		1		27	14	Canals01: One is a water dripping sound, tucked inside an inaccessible area.
assault_assaultpoint	49	18
assault_rallypoint	19	15
env_ar2explosion		3
env_beam	1				4
env_bubbles						6
env_dustpuff					3	3
env_entity_maker			1		2	2
env_explosion		1
env_fire	3	2
env_flare	1	1				1
env_fog_controller	1	1	1	1	1	1
env_headcrabcanister					14	1
env_hudhint		1			1
env_lightglow				6
env_microphone		2
env_muzzleflash	1	1				1
env_particlescript	6
env_physexplosion	1	17	7		6	4
env_physimpact		1
env_rotorshooter			27
env_shake		3			1	1
env_shooter		1
env_soundscape	12	24	11	22	14	11
env_spark	1				11
env_speaker	1			1	3
env_splash				1	2	2
env_sprite	15	13		13	5	2
env_steam				12
env_sun	1	1	1	1	1	1
filter_activator_class		1		2		5
filter_activator_name	3	10			4	5	Canals05: One specifies !null for its filter name, as a way to explicitly say "nothing". No code exists that recognizes a string with !null in it, but the filter still works as intended because no entity in the map is named that exact thing.
filter_multi		1
func_areaportal	7	21	7		22	4
func_areaportalwindow		1
func_breakable	4	18	2	139	9	16
func_breakable_surf	8
func_brush	6	16	1	3	9	2
func_clip_vphysics		3	2	1	4	1
func_door	1	1		2	1
func_door_rotating	1	1		5
func_illusionary	47		1	2	1
func_ladderendpoint	2			2
func_lod	3	5				1
func_monitor	1
func_movelinear					2
func_occluder		2	1		6	14
func_physbox	2	16	25	25	10	64
func_rotating					1
func_smokevolume					11	2
func_tank		1
func_tracktrain	3	3				1
func_useableladder	1	2	1	5	2	3
func_vehicleclip		3			6	35
func_water_analog				1
game_ragdoll_manager		1
game_weapon_manager		1
generic_actor		1			1
infodecal	55	61	23	50	26	52
info_constraint_anchor						1
info_ladder_dismount	6	9	3	60	16	15
info_landmark	2	2	2	2	2	2
info_node	198	243	8	154	275	128
info_node_air	43	66	32	165	57	77
info_node_air_hint	5	4				2
info_node_hint		26		12	19	25
info_node_link	1	3			3
info_node_link_controller		1		1	1
info_npc_spawn_destination		11
info_player_start	6	7	5	20	5	4
info_target	17	15	2	12	19	7
item_ammo_crate					1
item_ammo_pistol	4	3	4	12	3	3
item_ammo_pistol_large					1
item_ammo_smg1				1	2	3
item_ammo_smg1_grenade				1
item_battery	3	4	1	7	1
item_dynamic_resupply		1		2	10	6
item_healthcharger	3
item_healthkit	4	9	8	7	5	2
item_healthvial			2
item_item_crate	4	7	1	11	8	5
item_suit	1	1	1	1	1	1
keyframe_rope	8	34	72		12	24
light	6	5	11	16	64	34
light_environment	7	6	1	6	5	7
light_spot	24	17	11	42	26	9
logic_auto	4	2	1	4	1
logic_autosave						2
logic_branch	1
logic_case	3			1
logic_choreographed_scene	13	15		10	13	3
logic_navigation				1	1
logic_relay	11	18		17	27	8
logic_timer	2			5	1	1
math_counter	4	10		5	3	1
momentary_rot_button					4
move_rope	2	17	8		8	12
npc_apcdriver		1
npc_barnacle		21	16	4	2	2
npc_bullseye	5	4	2	5
npc_citizen	3	6		1	5	1
npc_combinedropship						2
npc_combine_s					1		Canals05: Hidden at the top of the map in an inaccessible spot near the start. Can be heard and killed by grenades.
npc_crow		7				8
npc_cscanner	15	2	2	2	1	2
npc_enemyfinder	3	4
npc_furniture	1
npc_gman	1					1
npc_headcrab					22	1
npc_headcrab_fast					1		Canals05: Appears in the boat dock area after the player leaves it. This headcrab kills the citizen inside it.
npc_helicopter	5	2	2			1
npc_heli_avoidsphere						1
npc_manhack				20	5
npc_metropolice	18	22		18	2	8
npc_pigeon	5
npc_template_maker	18	17	1	29	2	6
npc_vehicledriver		1				2
npc_vortigaunt	1
npc_zombie					4	2
npc_zombie_torso				1
path_corner	52	7	6	16		7
path_track	33	27	32			39
phys_ballsocket		2
phys_constraint		5			1
phys_constraintsystem					1	1
phys_hinge		3	1		1	3
phys_keepupright				3		1
phys_lengthconstraint					1
phys_motor				7		1
phys_pulleyconstraint						1
phys_ragdollmagnet	9	8		6
phys_slideconstraint		1			1	1
phys_thruster						1
point_angularvelocitysensor						1
point_camera	1
point_spotlight		1	1		3
point_template	3	12	2	6	16	8
prop_door_rotating			2
prop_dynamic	23	6	2	11	11	20
prop_dynamic_override				2	1
prop_physics	150	125	112	138	170	116
prop_physics_override	1				5
prop_ragdoll	1	7	8	5	7	4
prop_vehicle_apc		2		1		2
prop_vehicle_airboat					1	1
scripted_sequence	15	27		18	11	9
shadow_control	1	1	1	1	2	1	Canals05: One uses all of FGD defaults, other differs only by angle. The one with the non-default angle is the one used by the engine.
sky_camera	1	1	1	1	1	1
trigger_autosave	4	6	2	11		1
trigger_changelevel	2	2	2	2	2	4
trigger_hurt	2			3	18	7
trigger_look		1		1		2
trigger_multiple	8	10	9	13	11	2
trigger_once	28	46	6	38	31	24
trigger_playermovement		1
trigger_push	2	6	1	5		1
trigger_transition	2					1
water_lod_control	1	2	1	1	1	1	Canals01a: Settings are identical.
weapon_crowbar	1	1	1	1	1	1
weapon_frag				1
weapon_pistol			2	1	1	1
weapon_smg1				1	2	2
worldspawn	1	1	1	1	1	1
Total	1224	1286	500	1306	1161	950

Canals (2/2)

Entity	Canals07	Canals08	Canals09	Canals10	Canals11	Canals12	Canals13	Notes
ai_changehintgroup	3
ai_goal_actbusy	4	2
ai_goal_assault	1	1
ai_goal_standoff	2	1
ai_relationship	3	4
aiscripted_schedule	3	3
ambient_generic	9	5	1
assault_assaultpoint	5	6
assault_rallypoint	5	5
env_ar2explosion	1
env_entity_maker	1	1	1
env_explosion	9
env_fire	42
env_fog_controller	1	1	1
env_lightglow		1
env_microphone	1
env_physexplosion	2		1
env_physimpact	5
env_soundscape	9	12	8
env_spark	1	1
env_sprite	4	17	12
env_sun	1	1	1
filter_activator_class	3	1	2					Canals07: One filters for prop_physics_ragdolls, an entity now gone with very few traces remaining. It was likely an older name for prop_ragdoll, given that physics_prop_ragdoll exists. The filter was used for some trigger_removes. Canals08: Filters for vehicle_airboat, which no longer exists. Canals09: Filters for metrocops, implying they would attack you in the area with the small cache the helicopter can't reach.
filter_activator_name	2
filter_multi	1
func_areaportal	12	10	4
func_areaportalwindow	1	8
func_breakable	11	26
func_breakable_surf	6	3
func_brush	11	7
func_clip_vphysics	3	1
func_door		1
func_door_rotating		2
func_illusionary	2	20
func_ladderendpoint	2
func_lod	2	4
func_monitor	2
func_occluder	8	10
func_physbox	38	3	12
func_rotating	1
func_tank	2
func_tankairboatgun		2
func_tracktrain	1
func_useableladder	4	1
func_vehicleclip	32	3	40
func_wall_toggle		1
infodecal	78	51	18
info_apc_missile_hint	2
info_ladder_dismount	22	3
info_landmark	2	2	2
info_target	8	3	10
info_node	220	210	3
info_node_air	183	75
info_node_air_hint	1
info_node_hint	70	24
info_player_start	8	4	2					Canals09: Unused spawn is completely inside a wall near the end of the map.
item_ammo_357		3
item_ammo_crate	3
item_ammo_pistol	3	1
item_ammo_smg1	1
item_ammo_smg1_grenade	1		1
item_battery	1	2	3
item_dynamic_resupply	2	3	1
item_healthcharger	2	1
item_healthkit	1	2
item_healthvial		3
item_item_crate	8	15	4
item_suit	1	1	1
item_suitcharger		1
keyframe_rope	57	18	10
light	16	22
light_environment	5	8						Canals08: conflicting brightness settings! 243 219 143/248 233 186.
light_spot	30	52	12
logic_auto	4	3	2
logic_autosave	1	1
logic_compare		2
logic_choreographed_scene	1
logic_navigation	1
logic_relay	27	12	3
math_counter	1
move_rope	23	7	4
npc_apcdriver	3
npc_barnacle	5
npc_breen	1
npc_bullseye	3
npc_combinedropship	2
npc_combine_camera	1
npc_crow	3
npc_cscanner	1
npc_headcrab	1
npc_helicopter		2	1
npc_heli_avoidsphere		20	6
npc_maker		2
npc_manhack	4
npc_metropolice	34	22
npc_template_maker	9	8
path_track	18	76	23
phys_ballsocket	1
phys_constraint	6
phys_hinge	2	1
phys_pulleyconstraint		1
phys_thruster	3
point_camera	1
point_spotlight	22	18
point_template	10	8	1
prop_door_rotating	9	2
prop_dynamic	8	7
prop_physics	194	122	22
prop_ragdoll	2
prop_vehicle_airboat	1	1	1
prop_vehicle_apc	5
scripted_sequence	4
shadow_control	1	1	1
sky_camera	1	1	1
trigger_autosave	3	1	2
trigger_changelevel	3	3	4
trigger_hurt		5	5
trigger_multiple	14	17	9
trigger_once	23	21	1
trigger_push	1
trigger_remove	8
trigger_transition	1	1	3					Canals09: There are two at the start for no apparent reason.
water_lod_control	1	1	1
weapon_357		2	1
weapon_crowbar	1	1	1
weapon_frag	7	1
weapon_pistol	2	1	1
weapon_smg1	3	1	1
worldspawn	1	1	1	1	1	1	1
Total	1462	1041	255

Eli and Town

Entity	Eli01	Eli02	Town01	Town01a	Town02	Town02a	Town03	Town04	Town05	Notes
worldspawn	1	1	1	1	1	1	1	1	1
Total

Coast (1/2)

Entity	Coast01	Coast03	Coast04	Coast05	Coast07	Notes
worldspawn	1	1	1	1	1
Total

Coast (2/2)

Entity	Coast08	Coast09	Coast10	Coast11	Coast12	Notes
worldspawn	1	1	1	1	1
Total

Prison

Entity	Prison01	Prison02	Prison03	Prison04	Prison05	Prison06	Prison07	Prison08	Notes
worldspawn	1	1	1	1	1	1	1	1
Total

C17 (1/2)

Entity	c17 01	c17 02	c17 03	c17 04	c17 05	c17 06a	c17 06b	c17 07	Notes
worldspawn	1	1	1	1	1	1	1	1
Total

C17 (2/2)

Entity	c17 08	c17 09	c17 10a	c17 10b	c17 11	c17 12	c17 12b	c17 13	Notes
worldspawn	1	1	1	1	1	1	1	1
Total

Citadel and Breen

Entity	Citadel01	Citadel02	Citadel03	Citadel04	Citadel05	Breen01	Notes
worldspawn	1	1	1	1	1	1
Total

Misc. Findings

• Many worldspawns contain unused keyvalues similar to ones on light_environment and env_fog_controller. Another mysterious KV is "sounds".
• Maps have multiple light_environments, with identical values. Probably related to cordons.
• Many maps have env_sun keyvalues which are left there from a previous implementation of the entity which allowed the mapper to use up to four textures at once, each with their own X and Y scales.