SteeringForcePursue.java

package com.hypixel.hytale.server.npc.movement.steeringforces;

import com.hypixel.hytale.math.vector.Vector3d;
import com.hypixel.hytale.server.npc.movement.Steering;
import javax.annotation.Nonnull;

public class SteeringForcePursue extends SteeringForceWithTarget {
   private double stopDistance;
   private double slowdownDistance;
   private double falloff;
   private double invFalloff;
   private double squaredStopDistance;
   private double squaredSlowdownDistance;
   private double distanceDelta;

   public SteeringForcePursue() {
      this(20.0, 25.0);
   }

   public SteeringForcePursue(double stopDistance, double slowdownDistance) {
      this.falloff = 3.0;
      this.invFalloff = 1.0 / this.falloff;
      this.setDistances(stopDistance, slowdownDistance);
   }

      {
      .stopDistance = stop;
      .slowdownDistance = slowdown;
      .squaredStopDistance = stop * stop;
      .squaredSlowdownDistance = slowdown * slowdown;
      .distanceDelta = slowdown - stop;
   }

      {
       (.compute(output)) {
         output.setTranslation(.targetPosition);
            output.getTranslation();
         translation.subtract(.selfPosition);
            translation.squaredLength();
          (distanceSquared <= .squaredStopDistance) {
            output.clear();
             ;
         }  {
               Math.sqrt(distanceSquared);
             (distanceSquared >= .squaredSlowdownDistance) {
               translation.scale( / distance);
               output.clearRotation();
                ;
            }  {
                  Math.pow((distance - .stopDistance) / .distanceDelta, .invFalloff);
               translation.setLength(scale);
               output.clearRotation();
                ;
            }
         }
      }  {
          ;
      }
   }

      {
       .stopDistance;
   }

      {
      .setDistances(.getSlowdownDistance(), stopDistance);
   }

      {
       .slowdownDistance;
   }

      {
      .setDistances(slowdownDistance, .getStopDistance());
   }

      {
       .falloff;
   }

      {
      .falloff = falloff;
      .invFalloff =  / falloff;
   }
}