Mapping for ZPS is much like mapping for HL2 Deathmatch - brushwork, prop placement, everything looks the same. There are 2 main differences that you need to know and get familiar with. First of them is lobby system, the second one is random item placement. Without further ado, let's start:

Games Zombie Panic! Source hl2zp Servers SEARCH BY Server Name or IP Server Current Map Server Variable Server Tags Online Player Name Online/Offline Player Name Team Name or Tag Profile Username Profile Last Name Profile Email. Zombie Panic! Source is a standalone cooperative, survival-horror, first-person-shooter! Set in the middle of a zombie apocalypse, players start as a small group of survivors attempting to stay alive. Each map will have its own objectives to complete and win the round or survive by a period of time.

Lobby system:

At the beginning of round everyone spawns in the lobby. Lobby is a place where players can join teams by walking into triggers. You can design the place as you wish, it can be anything. Lobby has to be built outside the normal map, otherwise it may cause errors and players getting killed in the lobby. Now let me explain custom entities related to lobbys:

# info_player_commons - This is the entity that determines where players spawn in the lobby. You should have atleast 32 of those in your map so players will not spawn on each other on crowded servers. Do NOT place this entity outside the lobby.
# info_player_human - This is the entity that determines where players spawn after joining the humans team. You should have atleast 32 of those in your map so players will not spawn on each other on crowded servers. Do NOT place this entity inside the lobby.
# info_player_zombie - This is the entity that determines where players spawn after joining the zombies team. You should have atleast 4 (but this is the real MINIMUM!) of those in your map. Amount of zombies spawned at the beginning is dynamically adjusted to the amount of players. Below is a list explaining how many zombies are spawned:
From 2 to 8 players - 1 zombie
From 9 to 16 players - 2 zombies
From 17 to 24 players - 3 zombies
From 25 to 32 players - 4 zombies
Do NOT place this entity inside the lobby.
# info_player_observer - This is the entity that determines where players spawn after joining spectators team.

When you are done with setting up player spawns, you need to set up proper team triggers in the lobby. Let me explain the triggers first:
# trigger_joinhumanteam - Player joins the humans team after touching the brush tied to this entity.
# trigger_joinzombieteam - Player joins the zombies team after touching the brush tied to this entity.
# trigger_joinspectatorteam - Player joins the spectators team after touching the brush tied to this entity.

Here is how a proper lobby should look like (you can download source of this map at the bottom of this tutorial):

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NOTE: You will get error that there is no player start (Map > Check for problems) - It is because the engine does not recognize info_player_commons as player spawn entity. Just ignore that error.

Random item placement:

Okay, things get a bit more complicated here. You can place weapons in the old way, just by placing weapon_ak47, weapon_glock etc. on your map or use our random item placement system. First, you need to get familiar with list of ZPS items:

1. weapon_plank

2. weapon_broom

3. weapon_golf

4. weapon_keyboard

5. weapon_hammer

6. weapon_racket

7. weapon_spanner

8. weapon_pot

9. weapon_fryingpan

10. weapon_sledgehammer

11. weapon_axe

12. weapon_shovel

13. weapon_crowbar

14. weapon_pipe

15. weapon_macheteOrdained minister license.

16. weapon_tireiron

17. weapon_torque

18. weapon_glock

19. weapon_glock18c

20. weapon_usp

21. weapon_ppk

22. weapon_ak47

23. weapon_mp5

24. weapon_870

25. weapon_supershorty

26. weapon_revolver

27. weapon_frag

28. item_ammo_pistol

29. item_ammo_357

30. item_box_buckshot

31. item_ammo_smg1

32. item_battery

33. item_healthkit

34. item_healthvial

Legend:
Blue - Melee weapon
Red - Firearm
Green - Item

The items above are all self-expleanatory. Now let me explain random placement entities. They can be placed in the map just like all other item entities(weapon_glock, item_battery etc.), the difference is that those entities will randomly spawn one of the items every round. They can be limited and defined but I will tell you about those entities later.

# random_any - Spawns random item from 1 to 34.
# random_weapon - Spawns random item from 1 to 27.
# random_firearm - Spawns random item from 18 to 27.
# random_rifle - Spawns random item from 22 to 23.
# random_shotrev - Spawns random item from 24 to 26.
# random_pistol - Spawns random item from 18 to 21.
# random_melee - Spawns random item from 1 to 17.
# random_ammo - Spawns random item from 28 to 31.
# random_misc - Spawns random item from 32 to 34.
Okay, so you have your random items, but what if you dont want to spawn more than 2 ak's and 1 glock? This is where random_def comes in. Place that entity anywhere in your map, turn of smart edit and start defining! If you don't define a weapon in random_def then it can spawn unlimited number of times, if you define a weapon and set the value to 0 then the weapon will not spawn. Any other number will set the maximum amount of each weapons spawned. You need to add new values, for example:

Now lets talk about random placement. You can do that in two different ways. The first one is by using random_def. Here's simple example. Place 3 random_rifle entities on your map. Without defining anything, each weapon has no limit to the number of spawns it can have in the map and 3 random rifles would spawn. Now place random_def and define the following in the entity:
weapon_ak47 - 1
weapon_mp5 - 1
This creates counters for the ak47 and the mp5. As you can see, we defined all rifles avaible and set the values to 1 but we have 3 random_rifle entites! In this case only two weapons can spawn, one (randomly choosen) random_rifle entity will not spawn anything, because amount of avaible rifles reached 0.

The other way to have random placement is using random_limit. Using this entity you can limit how many random spawn entites will be activated. For example limit 2 random_rifle, 1 random_pistol and place more of those entities in your map. Only 2 random_rifle and 1 random_pistol entities will spawn a weapon, the rest will be empty. Here's how to limit them properly:

Note: Do not use random_limit to limit weapons, you do that with random_def entity.

In short:
random_def = limiting weapons and ammo (item_ammo_pistol, weapon_ak47 etc.)
random_limit = limiting spawn places (random_rifle, random_firearm etc.)

Combine both random_limit and random_def entities to get the best effect and feel of randomness on your map. Below you can download example map, with a lobby and random item placement system. Enjoy!

Zombie Panic! Source (ZPS) is a cooperative, survival-horror Half-Life 2first-person shootermodification. It is the sequel to the popular Half-LifemodificationZombie Panic. Set in the middle of a zombie apocalypse, players start as a small group of survivors attempting to stay alive. Each map will have its own objectives to complete and win the round or survive by a period of time.

Initially released on December 28, 2007 via ModDB page as a public beta (v1.0) and later re-released for Steam via Steamworks in October 8, 2008 as a free-to-play game.

Gameplay[edit]

At the start of each round, players can either choose to join the human team or volunteer to be the first zombie. If no one volunteers the game will pick one human randomly, and the game begins. The starter zombie's goal is to kill the humans while the human goal is to stay alive as long as possible, complete objectives, or even wipe out all the zombies. The catch is that when a human dies he will simply join the ranks of the undead, now ready to finish off his old living teammates. The humans cannot tell by the player list who is alive and who is undead.

Eventually, there will only be one survivor still standing if everything goes wrong, his back against the wall while facing the animated corpses of his former allies. In a survival round, the zombies team only has a certain number of reinforcements (lives), and when a zombie is killed they lose a life from the counter. However, when a human is killed they gain 1 life. When the zombies run out of lives, the remaining survivors win the round by killing off the remaining undead left on the map. In objective rounds, zombies get an unlimited number of lives while the humans must complete a variety of map-based objectives to win.

History[edit]

Zombie Panic! Source began development in early 2005, and released their first public beta on December 28, 2007.^[1][2]

On October 8, 2008, it was one of the first five 'mods' to be released on Steam by Valve under their new commitment to easily accessible quality user-created modifications in the Steam Store.

See also[edit]

References[edit]

1. ^Contact Michael McWhertor: Comment (January 2, 2008). 'Zombie Panic Source Brings Zombies, Panic To Source'. Kotaku.com. Retrieved November 9, 2012.
2. ^'Zombie Panic: Source - Blue's News Comments'. Bluesnews.com. December 30, 2007. Retrieved August 16, 2016.

External links[edit]