WiseNPC03: NPC Act busy with Sequence

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This tutorial was originally created by wisemx.

Ported from SDKnuts.net to VDC by: Pinsplash (talk) 05:16, 21 July 2018 (UTC)

In this tutorial we are going to transition from a scripted_sequence directly into an ai_goal_actbusy. This project is an extension of WiseNPC01. I started with that vmf and added the ai_goal_actbusy, which will cause Alyx to kneel down. I used info_node entities in this one rather than the more advanced info_node_hint entities so the one info_node_hint in this tutorial will stand out. Both of these are nodes for ground based NPC’s and serve the same basic purpose however info_node_hint has many more features.

There are two series of sequences going on in this project:

  1. A sound is heard, Alyx runs across the screen, walks back then kneels down in front of a grave.
  2. A Nova Prospect soldier is pacing back-and-forth behind the grave.

I added an ai_relationship so Alyx and the Combine Soldier won’t fight.

  • Subject: combine01 (Name of the Combine Soldier)
  • Target: walking (Name of Alyx in this project)
  • Disposition: Neutral
  • Disposition Priority: 100
  • Start Active: Yes
  • Reciprocal: Yes

So we can get Alyx to kneel an ai_goal_actbusy entity was added.

  • Name: actbusy
  • Actor to affect: walking
  • Start Active: Yes
  • Search Type: Entity Name
  • Search range: 1200
  • Visible Busy Hints Only: No

One info_node_hint was placed under the last scripted_sequence.

  • Name: kneelhint
  • Hint: World: Act Busy Hint
  • Hint Activity: D1_C01a_Mary_kneel
  • Node FOV: 360 Degrees
  • Start Hint Disabled: No
  • Ignore Facing: Yes

When Alyx gets to the last scripted_sequence this Output is fired:

  My Output Target Entity Target Input Parameter Delay Only Once
Io11.png OnEndSequence actbusy ForceThisNPCToActBusy walking 0.00 No

The npc_combine_s pacing back-and-forth is done with two scripted_sequences. These Flags are checked on each of them: Repeatable, No Interruptions, Override AI.

The Target NPC for each of these is our npc_combine_s combine01.

Move to Position is Walk for both.

These are the two Outputs that make it work:

  My Output Target Entity Target Input Parameter Delay Only Once
Io11.png OnEndSequence combiness02 BeginSequence 0.00 No
Io11.png OnEndSequence combiness01 BeginSequence   0.00 No

On map spawn our logic_auto adds this Output to start the Soldier pacing:

  My Output Target Entity Target Input Parameter Delay Only Once
Io11.png OnMapSpawn combiness01 BeginSequence 0.00 No

This project was simple to create but has a lot going on now. Compile it and have a look.

See Also