Testing Portal 2 Co-Op Maps Alone: Difference between revisions

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{{lang|Testing Portal 2 Co-Op Maps Alone|title=Testing ''Portal 2'' Co-Op Maps Alone}}
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[[Category:Portal 2 Level Design]]
This is a guide on how you can test co-op maps alone utilizing the [[splitscreen]] capabilities of the Source engine. This also works for any existing coop maps. It does not require any modifications to the map file itself.
 
This does not cover the requirements for making a coop level in the first place.
 
 
==Loading the Map==
; <code>[[ss_map]] ''mapname''</code>
: Load <code>''mapname''</code> in splitscreen 2-player mode. Analogous to <code>[[Map (ConCommand)|map]]</code> in singleplayer. Like <code>map</code>, it is not required to add the trailing <code>.bsp</code>.
{{Note|If the map name doesn't begin with "mp_coop_", add " *mp" to the end of the command: <code>ss_map ''mapname'' *mp</code> }}
; <code>[[ss_splitmode]] ''mode''</code>
: Changes the splitscreen mode.
: <code>ss_splitmode 0</code>: Use recommended settings based on width
: <code>ss_splitmode 1</code>: Top-and-bottom split
: <code>ss_splitmode 2</code>: Side-by-side split
 
If your map is stuck at the loading screen, try to shorten the VMF filename and recompile.
 
===Dual Monitors===
If you run dual monitors and want to split to each monitor, follow [https://web.archive.org/web/20160726125926/http://forums.steampowered.com/forums/showthread.php?t=1857198 this guide]
 
==Controlling the Second Player==
If you could actually play the coop map entirely as one player, it wouldn't be a very cooperative map. These are some ways you can control the second player.
 
===<code>in_forceuser</code>===
; <code>[[in_forceuser]] ''playerindex''</code>
: Take over the second player. All movement and other keybindings will be as if the second player used them. Requires cheats to be enabled.
: {{ent|sv_cheats|1}}: Turn on cheats
: <code>in_forceuser 0</code>: Control player #1 (Atlas)
: <code>in_forceuser 1</code>: Control player #2 (P-Body)
 
To make this easy to use, set a [[Bind|keybinding]] for it:
; <code>[[BindToggle]] "z" in_forceuser</code>
: Swaps you between first and second player when you push "z".
 
{{note|If you are moving, crouching, shooting portals or otherwise performing an action when you change players, you will stop during the change but immediately resume the action when you change back. For instance, if you're holding "w" to move forward, you will stop moving forward as soon as you hit "z" (assuming you use the BindToggle above), but immediately resume moving forward when you hit "z" again even if "w" is no longer being held down. To stop this, simply tap "w" again, or use a more robust keybinding: <code>[[Bind]] "z" "-moveleft; -moveright; -use; -forward; -back; -attack; -attack2; toggle in_forceuser"</code>.}}
 
===Use a Controller===
This is actually more complicated than it sounds unless you have two controllers available. Source will map actions of the first detected controller to the first player and there doesn't seem to be any way to override this. The workaround is to either have two actual controllers or use trickery to make your computer think it has two controllers.
 
You can also connect one controller and enter command <code>in_forceuser 1</code>. Then, Atlas will be controled by controller and P-body will be controled by keyboard.
 
More information for this can be found on the [http://forums.steampowered.com/forums/showthread.php?t=1847904 Steam forums].
 
===<code>change_portalgun_linkage</code>===
This allows you to use the extra sets of linked portals without actually changing characters.
 
; <code>[[change_portalgun_linkage_id]] '''''integer'''''</code>
: Changes portals fired to belong to the specified character or team.
 
:: <code>change_portalgun_linkage_id '''0'''</code>: Single-player
:: <code>change_portalgun_linkage_id '''1'''</code>: Blue
:: <code>change_portalgun_linkage_id '''2'''</code>: Orange
:: <code>change_portalgun_linkage_id '''''[3-9]'''''</code>: Extra / Reserved
{{Note|The color appearance of portals is tied to the person firing them. E.g., when Blue fires Orange's portals (''linkage_id: 2''), they appear blue until Orange fires them again.}}
 
== Other Useful Console Commands ==
; <code>[[cmd2]] ''command''</code>
: Executes ''command'' as if typed by the second player.
: <code>cmd2 name Player2</code>: Sets the name of the second player
; <code>[[ss_force_primary_fullscreen]] ''enable''</code>
: Makes the first player fullscreen if ''enable'' is 1, hiding the second player's view.
: <code>ss_pipsplit 3; ss_pipscale 1; ss_pip_bottom_offset 0; ss_pip_right_offset 0</code> can be used to show only the second player's view
 
 
== Alternative Way ==
Open Portal 2 and go to the "Community Test Chambers" (PTI) tab and enter the test chamber editor. Set the gamemode to "Coop" then launch the map. After launching the map, you can follow the instructions below, without having to use <code>[[in_forceuser]]</code>. Instead by default, you can press <code>R</code> that triggers <code>[[swap_ss_input]]</code> until restarting Portal 2.
 
{{Note|For some reason this command doesn't work when PTI isn't started and will stop working when closing PTI.}}
 
 
== External Links ==
* [http://forums.thinking.withportals.com/maps-and-modding/running-testing-co-op-maps-in-singleplayer-t2299.html Original version of this guide] hosted at ThinkingWithPortals.com
* [http://forums.steampowered.com/forums/showthread.php?t=1847904 How-to: Split Screen Coop]
* [http://forums.steampowered.com/forums/showthread.php?t=1857198 How-to: SplitScreen with 2 monitors]
* [http://forums.steampowered.com/forums/showthread.php?p=22141019 How-to: Play Co_Op Alone]
[[Category:Portal 2 Level Design]]
[[Category:Portal 2 Level Design]]
[[Category:Portal 2 Tutorials]]
[[Category:Portal 2 Tutorials]]

Revision as of 23:04, 13 May 2023