source: last-defense/main/Turret.java

package main;

import java.util.LinkedList;
import gamegui.Animation;

public class Turret extends Unit {
    int damage;
    Unit target;
    Animation projectileImg;
    
    public Turret(final String name, final Animation img, final int damage, final int hitpoints, final int fireRate, final Animation projectileImg) {
        super(name, img, hitpoints);
        this.damage = damage;
        this.projectileImg = projectileImg;
        this.actions.add(new Action.Fire(fireRate));
    }
    
    public int getDamage() {
        return this.damage;
    }
    
    @Override
    public void perform(final Action action, final LinkedList<Entity> lstObjects, final LinkedList<Unit> lstTargets) {
        if (action instanceof Action.Fire) {
            this.perform((Action.Fire)action, lstObjects, lstTargets);
        }
    }
    
    public void perform(final Action.Fire action, final LinkedList<Entity> lstObjects, final LinkedList<Unit> lstTargets) {
        if (lstTargets.size() == 0) {
            this.target = null;
            return;
        }
        if (this.target == null || this.target.remove) {
            this.target = lstTargets.get((int)(Math.random() * lstTargets.size()));
        }
        lstObjects.add(this.fire(this.target));
    }
    
    public Projectile fire(final Unit target) {
        final Projectile proj = new Projectile("Projectile", this.projectileImg, 400, target.loc, target, this.damage);
        proj.setLocation(this.loc);
        return proj;
    }
}