Smooth AI Controller for Unreal Engine 5

Note

Will probably also work for Unreal Engine 4 with minimal setup

An AI controller for smooth turning that allows AIs to rotate toward target actors or points. Unlike the default AI Controller focus code, this controller interpolates rotation smoothly over time, giving your AI smooth looking motion instead of snapping instantly

Features

• Smooth yaw and pitch rotation towards a target actor or world location
• Fully editable via blueprint defaults
  • Customizable interpolation speed
  • Customizable interpolation type:
    • Linear
    • EaseIn
    • EaseOut (default)
    • EaseInOut
    • Constant speed (degrees/sec)
  • Customizable degrees per second
  • Eye level height offset for the AI
  • Eye level height offset for target actors
• Randomization functions for per-AI variation:
  • RandomizeSmoothFocusSettings
    • Random interp speed between min/max
    • Random interp type from a array
  • RandomizeSmoothFocusSettingsWithDegrees
    • Random interp speed between min/max
    • Random interp type from a array
    • Random degrees per second between min/max

Fixes

• Changes focus behavior to allow pitch changes when looking at a target point, fixing the "AI only rotates in yaw" problem

Installation

• Copy the Public and Private folders into your project’s Source folder
• In your AI characters settings set:

  bUseControllerRotationYaw = true;
  GetCharacterMovement()->bOrientRotationToMovement = false;
  

  This prevents movement logic from fighting the controller rotation
• In your AI character Blueprint, set AIController class to SmoothAIController

Usage

You can use the build-in SetFocus(), SetFocalPoint() and ClearFocus() functions, as the code replaces those function with its own code

License

MIT License

feel free to use, modify, and integrate it into your UE5/UE4 projects

Keywords

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