GBEchoMovement.java

Go to the documentation of this file.

package com.fs.starfarer.api.impl.campaign.ghosts;
 
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
 
import org.lwjgl.util.vector.Vector2f;
 
import com.fs.starfarer.api.Global;
import com.fs.starfarer.api.campaign.SectorEntityToken;
 
 
public class GBEchoMovement extends BaseGhostBehavior {
    
    public static class GBEchoSnapshot {
        Vector2f vel;
        long timestamp;
    }
    
    protected List<GBEchoSnapshot> snapshots = new ArrayList<GBEchoSnapshot>();
    protected SectorEntityToken other;
    protected float delayDays;
    
    
    public GBEchoMovement(SectorEntityToken other, float delayDays, float duration) {
        super(duration);
        this.other = other;
        this.delayDays = delayDays;
    }
 
    @Override
    public void advance(float amount, SensorGhost ghost) {
        if (other.getContainingLocation() != ghost.getEntity().getContainingLocation() || !other.isAlive()) {
            end();
            return;
        }
        
        super.advance(amount, ghost);
        
        GBEchoSnapshot curr = new GBEchoSnapshot();
        curr.vel = new Vector2f(other.getVelocity());
        curr.timestamp = Global.getSector().getClock().getTimestamp();
        snapshots.add(curr);
        
        Iterator<GBEchoSnapshot> iter = snapshots.iterator();
        GBEchoSnapshot use = null;
        while (iter.hasNext()) {
            curr = iter.next();
            float ago = Global.getSector().getClock().getElapsedDaysSince(curr.timestamp);
            if (ago >= delayDays) {
                use = curr;
                iter.remove();
            } else {
                break;
            }
        }
        
        if (use != null) {
            ghost.getMovement().getVelocity().set(use.vel);
        }
    }
    
    
    
}