using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using VBXSE;
using Microsoft.Xna.Framework;

namespace SnakeRPG
{
    public class Particle
    {
        GObject gobject = null;
        public float speedX = 0;
        public float speedY = 0;
        public float duration = 1f;
        public bool expired = false;

        public void Update(float milliseconds)
        {
            float seconds = milliseconds / 1000f;
            gobject.SetPosition(gobject.position.X + speedX * seconds, gobject.position.Y + speedY * seconds);

            duration -= seconds;
            if (duration < 0) Delete();
        }

        public void Delete()
        {
            SpriteEngine.EraseGObject(gobject);
            this.expired = true;
        }

        public static Particle SpawnDamageParticle(int number, Entity source, Color color)
        {
            Particle toReturn = new Particle();

            GText gText = SpriteEngine.CreateGText(Convert.ToString(number), Convert.ToInt32(source.sprite.position.X), Convert.ToInt32(source.sprite.position.Y));
            gText.color = color;
            gText.depth = -1000;
            gText.positionLocked = false;
            toReturn.gobject = gText;
            toReturn.speedY = -100f;

            return toReturn;
        }
    }
}