LeashScript.java

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package com.fs.starfarer.api.impl.campaign;
 
import org.lwjgl.util.vector.Vector2f;
 
import com.fs.starfarer.api.EveryFrameScript;
import com.fs.starfarer.api.Script;
import com.fs.starfarer.api.campaign.CampaignFleetAPI;
import com.fs.starfarer.api.campaign.SectorEntityToken;
import com.fs.starfarer.api.util.Misc;
 
public class LeashScript implements EveryFrameScript {
 
    private CampaignFleetAPI fleet;
    private float range;
    private Script onBroken;
 
    private SectorEntityToken anchor;
    private Vector2f offset;
    
    public LeashScript(CampaignFleetAPI fleet, float range, SectorEntityToken anchor, Vector2f offset, Script onBroken) {
        this.fleet = fleet;
        this.range = range;
        this.onBroken = onBroken;
        this.anchor = anchor;
        this.offset = offset;
    }
 
    private boolean broken = false;
    public void advance(float amount) {
        if (fleet.getContainingLocation() != anchor.getContainingLocation()) {
            broken = true;
            onBroken.run();
        }
        if (broken) return;
        
        
        Vector2f dest = new Vector2f(anchor.getLocation().x + offset.x, anchor.getLocation().y + offset.y);
        float distToDest = Misc.getDistance(dest, fleet.getLocation());
        fleet.setMoveDestination(dest.x, dest.y);
        if (distToDest < 2) {
            fleet.setLocation(dest.x, dest.y);
        }
        
        float dist = Misc.getDistance(anchor.getLocation(), fleet.getLocation());
        if (dist > range + anchor.getRadius() + fleet.getRadius()) {
            broken = true;
            onBroken.run();
        }
        
    }
    
    public boolean isDone() {
        return broken;
    }
 
    public boolean runWhilePaused() {
        return false;
    }
}