GBFollow.java

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package com.fs.starfarer.api.impl.campaign.ghosts;
 
import org.lwjgl.util.vector.Vector2f;
 
import com.fs.starfarer.api.campaign.SectorEntityToken;
import com.fs.starfarer.api.util.IntervalUtil;
import com.fs.starfarer.api.util.Misc;
 
 
public class GBFollow extends BaseGhostBehavior {
    
    protected SectorEntityToken other;
    protected int maxBurn;
    protected float desiredRange;
    protected float desiredRangeMin;
    protected float desiredRangeMax;
    protected IntervalUtil interval = new IntervalUtil(5f, 10f);
    protected float angleOffset = 0f;
    protected Vector2f dest = new Vector2f();
    
    public GBFollow(SectorEntityToken other, float duration, int maxBurn, float desiredRangeMin, float desiredRangeMax) {
        super(duration);
        this.other = other;
        this.maxBurn = maxBurn;
        this.desiredRangeMin = desiredRangeMin;
        this.desiredRangeMax = desiredRangeMax;
        interval.forceIntervalElapsed();
    }
 
    @Override
    public void advance(float amount, SensorGhost ghost) {
        if (other.getContainingLocation() != ghost.getEntity().getContainingLocation() || !other.isAlive()) {
            end();
            return;
        }
        super.advance(amount, ghost);
        
        float mult = 1f;
        if (maxBurn >= 25f) mult = 3f;
        else if (maxBurn >= 15f) mult = 2f;
        else mult = 1.5f;
        interval.advance(amount * mult);
        if (interval.intervalElapsed()) {
            angleOffset = (float) Math.random() * 120f - 60f;
            desiredRange = desiredRangeMin + (desiredRangeMax - desiredRangeMin) * (float) Math.random();
            dest = Misc.getUnitVectorAtDegreeAngle(
                    angleOffset + Misc.getAngleInDegrees(other.getLocation(), ghost.getEntity().getLocation()));
            dest.scale(desiredRange + other.getRadius() + ghost.getEntity().getRadius());
            Vector2f.add(dest, other.getLocation(), dest);
        }
        
        ghost.moveTo(dest, new Vector2f(), maxBurn);
    }
    
    
    
}