package main;

import java.awt.Color;
import java.awt.Graphics;
import java.util.LinkedList;
import gamegui.Animation;

public class Projectile extends Entity {
    public static long explodedDuration = 300L;

    public boolean exploded;
    public long timeExploded;

    private int damage;
    private Location targetLoc;
    private Unit target;
    private int speed;
    
    public Projectile(final String name, final Animation img, final int speed, final Location targetLoc, final Unit target, final int damage) {
        super(name, img);
        this.speed = speed;
        this.targetLoc = targetLoc;
        this.target = target;
        this.damage = damage;
        this.exploded = false;
        this.actions.add(new Action.Move(20L));
    }
    
    public int getDamage() {
        return this.damage;
    }
    
    public Unit getTarget() {
        return this.target;
    }
    
    @Override
    public void perform(final Action action, final LinkedList<Entity> lstObjects, final LinkedList<Unit> lstTargets) {
        if (action instanceof Action.Move) {
            this.perform((Action.Move)action, lstObjects, lstTargets);
        }
    }
    
    public void perform(final Action.Move action, final LinkedList<Entity> lstObjects, final LinkedList<Unit> lstTargets) {
        if (this.exploded) {
            return;
        }
        if (this.loc.moveToTarget(this.targetLoc.getX(), this.targetLoc.getY(), (System.currentTimeMillis() - action.timeLastPerformed) * this.speed / 1000L)) {
            this.remove = true;
            this.target.takeDamage(this.damage);
            if (this.target.getHitpoints() == 0) {
                this.target.remove = true;
            }
        }
    }
    
    @Override
    public void draw(final Graphics g) {
        if (this.exploded) {
            if (System.currentTimeMillis() - this.timeExploded >= Projectile.explodedDuration) {
                this.remove = true;
            }
            else {
                g.setColor(new Color(255, 0, 0, 100));
                g.fillOval(this.loc.getX() - 15, this.loc.getY() - 15, 30, 30);
            }
        }
        else {
            this.img.draw(g, this.loc.getX(), this.loc.getY() + this.img.getHeight() / 2);
        }
    }
}