L4D2 Level Design/Scavenge Maps: Difference between revisions

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{{L4D2 level intro menu}}{{toc-right}}不论你是在现有地图添加清道夫模式还是制作一个纯清道夫的地图，都需要包含以下各个元素：


# 一个“安全”的开始区域
# 一个发动机（或其他耗油设备），并带有灌油口来表示计分和状态指示
# 清道夫油桶、武器，以及地图各处的物品
# 一个 [[info_director]] 实体，并带有清道夫的输出
让我们来慢慢了解：
== 开始区域 ==
[[Image:L4D2_scavenge_0.png|thumb|200px|right|Survivor start positions]]
Survivors begin scavenge matches at positions indicated by the [[info_survivor_position]] entity, so you'll need to place 4 of them and specify <code>scavenge</code> in the '''Game Mode''' entry.
[[Image:L4D2_scavenge_1.png|thumb|200px|right|The func_nav_attribute_region volume]]
The starting area needs to be represented in your maps nav mesh, which is saved in the .NAV file. The easiest way to do this is placing a [[func_nav_attribute_region]] volume entity in your .VMF. This will apply the proper checkpoint attribute to the nav mesh when it is analyzed. You will want to make sure that your nav mesh is subdivided well enough so that it can accurately reflect the boundary of this volume.
[[File:L4D2_scavenge_2.png|thumb|200px|right|Boundary marker]]
Next, you'll need to place the visible boundary marker which survivors see at the start of each round. Start by making a solid that covers the starting region, assign it the no draw material, and make it hollow '''Tools > Make Hollow'''. This turns the solid into six. Now delete the top and bottom, leaving four short walls.
On the four inside surfaces, apply the material "<code>effects/scavenge_boundary</code>". The boundary should now be visible, but we need to make it non-solid as well. Select the 4 side boundary brushes and make them a [[func_brush]] entity.
Under properties, set solidity to "'''Never Solid'''". This specifies that they are not to affect collision in game. Since we need to delete the boundary when the match starts, we'll need to give it a target name. The standard for Valve maps is "<code>brush_scavenge_boundary</code>"
The only thing left for now is to add an [[info_game_event_proxy]] set to generate an event named "<code>explain_scavenge_leave_area</code>".{{clr}}
== Generator ==
[[Image:L4D2_scavenge_3.png|thumb|150px|right|The generator instance]]
Next, let's place the generator and it's associated logic.
The new instance functionality makes this very easy. Simply create a new [[func_instance]] and point it to
Steam\steamapps\common\left 4 dead 2\sdk_content\mapsrc\instance\scavenge_generator.vmf
This is included in the L4D2 authoring tools and contains a fully functional generator including a glowing pour target, as well as lights that blink green, yellow and red based on the time remaining.
Of course, it need not be in an instance, you can copy and paste or make a prefab should you desire. {{clr}}
== Cans and weapons and items ==
[[Image:L4D2_scavenge_4.png|thumb|150px|right|]]
The standard scavenge level has 16 cans scattered around the arena. You can specify these locations by placing [[weapon_scavenge_item_spawn]] entities.
The standard for scavenge maps is to have weapons and items be consistent each time, so it's best to use
specific weapon spawning entities when placing them. If your map supports other gamemodes, you'll want to spawn your scavenge weapons and items using a [[point_template]] which is activated by the [[info_gamemode]] entity when it detects that the map has been launched in scavenge mode.
At the same time, any [[weapon_spawn]] and [[weapon_item_spawn]] that are there for other gamemodes may not work properly. It's best to have them killed whenever a map loads in Scavenge using <code>info_gamemode</code>.{{clr}}
== info_director ==
The last bit is to add some outputs from the [[info_director]].
[[Image:L4D2_gamemode_6.png|thumb|200px|right|<code>info_director</code> outputs]]
Since there is only one in the map, and other gamemodes rely on it, you may need to be put in the main .VMF, not the scavenge instance.{{clr}}
== Round start camera ==
[[Image:L4D2_scavenge_5.png|thumb|200px|right|]]
A nice touch is to add a moving camera when the round starts. This can be done by creating a couple of [[point_viewcontrol_multiplayer]] entities and coordinating them with [[env_fade]]. See the example map:
Steam\steamapps\common\left 4 dead 2\sdk_content\DeadLine2\mapsrc\l4d_deadline02_scavenge.vmf
{{clr}}
== Testing scavenge mode ==
To load up a map in Scavenge mode, use the following console commands:
mp_gamemode scavenge '''(Does not function in l4d2)'''
map <your .BSP map filename> scavenge '''(This is the right usage)'''
This is a useful shortcut to avoid having to go through the main menu every time or if you haven't yet set up your add-on. You can similarly change the gamemode to "<code>coop</code>", "<code>versus</code>", and "<code>survival</code>", if you're testing a map with multi-gamemode support.
During normal play, a Scavenge server will shut down after a short time if there are not enough human players. When you are developing and testing your Scavenge maps, you'll need to disable this using the console:
sv_cheats 1
sb_all_bot_team 1
jointeam infected
z_spawn charger
The <code>sb_all_bot_team</code> prevents the timeout from happening if there is a team with only bots.
If you are testing your map from the lobby, and want to start a game with only one player, use this command:
ui_lobby_start_enabled 1
This enables the 'Start Game' button in multiplayer game lobbies (Scavenge and Versus) even if there is only one human player.
{{note| Test your nav-mesh! Although bots cannot score points, it's important that they be able to reach any spot that human players can.}}
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[[Category:Left 4 Dead 2]]

Revision as of 21:32, 19 September 2016

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