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| ''By Mxthe''
| | {{lang|Mapping with Antlions}} |
| | {{Abstract Mapping}} |
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| __TOC__
| | [[File:Antlion.jpg|right|250px]] |
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| == Ant Lions ==
| | Antlion behavior includes how they act, how to make them unburrow when walking on the sand, how to make them fly and how to make them follow a precise route. Antlions basically can't see; they hear their enemies which is why they are sometimes complicated to handle. In most cases, they just run to and attack the player, but you can make them do precise things too. |
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| | ==Entities== |
| | * [[npc_antlion]] - includes the Antlion Worker |
| | * [[npc_antlionguard]] - a much larger and more dangerous form of antlion |
| | * [[npc_antliongrub]] - antlion larvae (Episode 1) |
| | * [[npc_antlion_grub]] - the Orange Box version of the grub |
| | * [[npc_antlion_template_maker]] - a specialized spawner for dealing with antlions |
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| In this Tutorial Im going to explain everything I know about Ant Lions, how they act, how to make them unburrow when walking on the sand, how to make them fly or how to make them follow a precise route.
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| | * [[weapon_bugbait]] - a weapon the player can use to control antlions |
| | * [[prop_thumper]] - the Combine mechanism that thumps the ground to ward off antlions |
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| The Ant Lions can't basically see, they hear thats why they are complicated to handle somtimes.
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| In most cases they just run to you and kill you but you can make them do precise things too.
| | * [[point_bugbait]] - an entity that detects when the player has used the Bugbait |
| Im going to start by the begining, the NPC itself.
| | * [[point_antlion_repellant]] - an entity that prevents antlions from jumping into its radius |
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| | == npc_template_maker == |
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| == Npc_Antlion ==
| | If you want to create an antlion that spawns by unburrowing, a simple [[npc_maker]] will not suffice because it does not have all the options of the <code>npc_antlion</code> (''start burrowed'', ''alert radius'', ''path corner''s, ''squad name''s and ''hint group''s). Therefore we must use [[npc_antlion_template_maker]]. |
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| | To make an antlion that unburrows on spawn, check the ''Start Burrowed'' flag on the antlion, and configure the [[npc_antlion_template_maker]] normally. The maker will automatically cause the antlion to unburrow. |
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| This ugly little beast from Starship Trooper is fast, it has 4 legs and it can fly!
| | As soon as the burrowed antlion spawns it will unburrow, instead of appearing from nowhere. |
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| KeyValues we can see a lot of things
| | ==See also== |
| | * [[Antlions: Random Spawn]] |
| | * [[Half-Life 2 Level Creation]] |
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| Start Burrowed - If you want your ant lion to start under the ground and dig up when you want.
| | [[Category:Hubs]] |
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| Alert Radius - Ant lion dont see, they listen, so when you are that near of him he can spot you, that is the distance where he can spot you.
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| Ignore Bugbait - If this Ant Lion will ignore the bugbait, so you can't control him, in most cases its NO, but if you want a scripted sequence put it to yes.
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| There is a help on the window describing each thing, so this window isnt very complicated lets skip to the FLAGS
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| Burrow When Eluded - It means that if the Ant Lion has no enemy anymore he will go back in the ground.
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| Use Ground Check, frankly, I never used this flag and I dont see what its for ^^
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| Gag (No Idle Sounds Till angry) all npc have this flag it means he will not make any sounds until he is angry, and he is angry when he finds an enemy, check this if you want the ant lion to surprise the player.
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| Template Npc (Used by npc_maker, will not spawn) for the ant lions this has to be checked because they aren't the type of enemy that appear rarely, hehe, better make hundreds of copy of this one, wich mean were gonna use a npc_maker or template maker or the antlion_template maker.
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| == Npc_Template_Maker ==
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| In most cases won't use a simple [[npc_maker]] because its better to determine each options of the Ant Lion, is he going to start burrowed, his alert radius, his path corners and squad names, hint groups also.
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| So to make it work good and nice, check the Start Burrowed flag on the AntLion, configure the [[npc_template_maker]] normally with the AntLion in the template.
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| Then go in the outputs and do this
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| OnSpawnNpc Ant Lion Unburrow
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| That means that as soon as the Ant Lion spawns (Burrowed) he will Unburrowed and come out of the ground, instead of appearing from no were, that is better isn't it :)
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| == Random Spawns ==
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| The great thing about theses ant lions its that they are made to be used with other litle tools to make them spawn a litle randomly when the hero walks on a specified material, can be sand or other!
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| So before all, make a map with sand, and rocks, what we will make here is that, if the player walks on the sand, ant lions come out near the player and attack, so he is forced to walk on the rocks.
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| Its fun to make, and fun to play!
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| You need :
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| [[npc_antlion]]
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| [[env_shake]]
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| [[ambient_generic]]
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| [[npc_antlion_template_maker]]
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| 2 [[logic_relay]]
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| [[env_player_surface_trigger]]
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| And a lot of [[info_node_hint]]
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| How to make this up.
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| Configure the Ant Lion name it AntLion and Starts Burrowed on yes
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| Name the Following like this:
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| [[env_player_surface_trigger]] : Surface Trigger
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| [[ambient_generic]] : sound_antlion_spawn
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| [[env_shake]] : shake_antlion_spawn
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| [[npc_antlion_template_maker]] : antlion_expanse_spawner
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| [[logic_relay]] 1 : relay_expanse_spawn
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| [[logic_relay]] 2 : relay_expanse_disablespawn
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| Lets Start with the [[env_shake]].
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| Name : shake_antlion_spawn
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| Amplitude : 2
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| Effect Radius : 500
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| Duration : 3
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| Frequency : 100
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| Thats it, the env_shake is just to make the effect better.
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| ----
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| Lets continue with the [[ambient_generic]].
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| Name : sound_antlion_spawn
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| SoundName : Streetwar.d3_c17_10b_rumble1
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| Volume : 8
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| Fade In Time : 1.5
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| Fade Out Time : 2
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| Pitch : 120
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| Start Pitch : 90
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| Max Audible Distance : 1250
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| Thats it too, the sound is to make a diging sound when the ant lions are coming, it is nice and very stressing!
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| ----
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| Lets continue with the [[env_player_surface_trigger]], I call it a "material detector" , its to trigger inputs if the player is walking on the specified material, in GameMaterialToWatch, pick sand, then go in the out puts and put this :
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| My Output Target Entity Target Input
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| OnSurfaceChangedFromTarget relay_expanse_disablespawn Trigger
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| OnSurfaceChangedToTarget relay_expanse_spawn Trigger
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| What we just did here is that if the player starts walking on the surface we have chosen, it triggers the relay wich enables the template_maker, and that if it stops walking on it, it trigger the relay wich disables the spawning.
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| ----
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| Lets continue with the [[npc_antlion_template_maker]]
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| In KeyValues :
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| StartDisabled : Yes, we do not want the template_maker to start spawning at the begining of the map.
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| Num. of NPCs : Not Really Matter because we will check Infinit Children in flags.
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| Frequency : 0.35 is a good speed for this operation
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| Max Live NCPs : How Many Ant Lions can live in same time, I generally put 8
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| Name Of Template NPC : AntLion, the name of the npc_antlion used
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| Spawn On HintGroup : I will explain later, write antlion_expanse_spawn_nodes
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| Spawn Radius : 1000, read the help for more details
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| Spawn Target : The target that the Ant Lions will attack, in this case, !player DONT FORGET THE ! Its not player, its !player
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| Ignore Bugbait : No
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| The rest of the keyvalues doesnt matter, now go in flags, the only flag that needs to be checked is Infinite Children.
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| Almost done, now go in outputs and write :
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| MyOutput Target Entity TargetInput Override Parameter Delay
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| OnAllSpawnedDead antlion_expanse_spawner SetMaxChildren 8 8.00
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| We just made that if all ant lions are dead it resets the number to 8 to provide any problems.
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| ----
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| Lets continue with the [[logic_relay]] 1 : relay_expanse_spawn
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| Go in the outputs and put this :
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| My Output Target Entity Target Input Delay
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| OnTrigger sound_antlion_spawn PlaySound 0
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| OnTrigger relay_expanse_disablespawn CancelPending 0
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| OnTrigger shake_antlion_spawn StartShake 0.10
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| OnTrigger antlion_expanse_spawner Enable 1
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| What we just did here, we made that if this relay is triggered it plays the sound, the ground shakes and the template_maker enables 1 second after we walked on the ground, wich makes an effect like the ant lions are coming up and its very nice :)
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| ----
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| Lets continue with the [[logic_relay]] 2 : relay_expanse_disablespawn
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| Go in the outputs and put this :
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| My Output Target Entity Target Input Delay
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| OnTrigger sound_antlion_spawn StopSound 0
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| OnTrigger shake_antlion_spawn StopShake 0
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| OnTrigger antlion_expanse_spawner Disable 0.50
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| OnTrigger relay_expanse_spawn CancelPending 0.50
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| Here we made that if this relay is triggered, the sound stops, the shake stops and the template_maker disables.
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| ----
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| And now, lets '''Finish''' with the [[info_node_hint]]
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| Theses are to set where the ant lions can spawn, you must put one everywere that the ant lion can possibly spawn, and the [[npc_antlion_template_maker]] will pick the one nearest the player.
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| All you got to configure are this :
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| Hint : AntLion : Burrow Point
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| Hint Group : antlion_expanse_spawn_nodes
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| ----
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| == Precise Ways ==
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| The ant lions use [[info_node]] to navigate on the ground, and [[info_node_air]] to navigate while flying.
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| To make them follow a precise way, make manually a way with PathCorners and set it to the ant lion's path corner, and place [[info_node]] around the way so the ant lions can navigate trough them.
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| If there is a wall on their way, put some [[info_node_air]] up the wall about 10 units above it, the ant lions will use it to fly above the wall.
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| If you want the ant lions to run to a precise target, use [[aiscripted_schedule]], name it, then :
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| Target Npc : Ant Lion
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| Search Radius : If there are more than one target, put 0.
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| All In Radius : If there are more than one target, put yes.
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| Ai State To Set : Put whatever you want.
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| Schedule to run : Pick one :)
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| Interruptability : You choose
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| Goal Entity : Is the target, it can be one precise or a classname, like npc_citizen...
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| Then at the [[npc_template_maker]] of the Ant Lion, go in output and put
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| OnSpawnNpc AiSchedule StartSchedule
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| And its good to go.
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| == Example Map ==
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| I made a quick example map of this tutorial, if you are too tired to read all of it, just download the .vmf, copy and past the things I did.
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| http://www.pcgamemods.com/mod/15620.html
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| [[Category:MappingTutorials]]
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| [[Category:Level Design]] | |
