env_mortar_controller

Class hierarchy
??? ↳??? ↳CBaseAnimating ↳CBaseEntity

env_mortar_controller is a point entity available in Black Mesa. This is an airstrike map that allows you to mark and launch bombs at a specified point. For full functionality, this entity must be used in combination with env_mortar_launcher, point_camera and info_camera_link. In the original game it was used once in bm_c2a5i.

Bug*:In current versions of the game, this entity have no fire delay (the fire button lock doesn't happen). If player will spam the button - this will create a lot of bombs which will cause huge fps drop (due to explosions) and then may cause the game to crash. Not in Black Mesa (the mod version) and early versions of the game.

Workaround:See workaround below.

Bug*:This entity doesn't work properly in multiplayer, only 1 player will be able to shoot, the crosshair will not work for others.

Bug*:Never solid.

Keyvalues

Name (targetname) <string>

The name that other entities refer to this entity by, via Inputs/Outputs or other keyvalues (e.g. parentname or target).
Also displayed in Hammer's 2D views and Entity Report.

See also:  Generic Keyvalues, Inputs and Outputs available to all entities

Mortar Launcher (mortarlauncher) <targetname>

env_mortar_launcher to use.

Inputs

attachscreen <void> !FGD

Fires on entity spawn to attach screen.

Attaching screen

First, place point_camera at required position, set orientation and give a name. This entity will display area in airstrike map. You also need to change value for Render Target, set _rt_Satellite value.

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  Example.

Now we need info_camera_link. In Entity Whose Material Uses _rt_camera you need to add name of env_mortar_controller, in Camera Name add name of point_camera you placed earlier.

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  Example.

Now compile your map and check the result. You now have functional screen. Don't forget to specify env_mortar_launcher name in Mortar Launcher property.

Fixing mortar spam

env_mortar_launcher can dynamically change values in properties with AddOutput, we'll use this feature to fire 0 shells when fired once. Unfortunately, env_mortar_launcher and env_mortar_controller don't have any outputs that fires when shell is launched, we need to use triggers instead.

Create a trigger_weaponfire in the form of an empty box inside. There should be a free space of 30 hammer units inside (x, y, z), env_mortar_launcher should be placed in the center.

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  Example.

Now create another trigger_weaponfire that is 12 hammer units in size on all axes. This trigger should be in env_mortar_launcher center. Give a name for this trigger (shellkiller for example) and for Start Disabled? property set value Yes.

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  Example.

We need to add outputs now, for the second trigger (shellkiller) make the following output:

		My output	Target entity	Target input	Parameter	Delay	Only once	Comments
		OnStartTouch	!activator	Kill		0.00	No

For the first trigger, make the following outputs:

		My output	Target entity	Target input	Parameter	Delay	Only once	Comments
		OnStartTouch	shellkiller	Enable		0.00	No
		OnStartTouch	mortar_launcher	AddOutput	fireshellscount 0	0.00	No	mortar_launcher is the name of env_mortar_launcher.
		OnStartTouch	shellkiller	Disable		2.00	No
		OnStartTouch	mortar_launcher	AddOutput	fireshellscount 1	2.00	No

Now spam is prevented. The only issue is mortar launch sounds, you can fix this by replacing the sound with a blank sound and playing the original sound via outputs.