Esempio n. 1
0
        static public Entity Register(World w, Entity emitterEntity, Texture2D initTexture = null)
        {
            Emiter    emit          = emitterEntity.GetComponent <Emiter>();
            Transform emitTransform = emitterEntity.GetComponent <Transform>();

            Entity particle = w.CreateEntity()
                              .AddComponent <Transform>()
                              .AddComponent <Sprite>()
                              .AddComponent <Lifetime>()
                              .AddComponent <ParticleTag>();

            Sprite    sprite  = particle.GetComponent <Sprite>();
            Texture2D texture = initTexture != null ? initTexture :  emit.particleTexture;

            sprite.texture = texture;
            sprite.size    = new Vector2(1, 1);
            sprite.scale   = 4;


            Lifetime life = particle.GetComponent <Lifetime>();

            life.birth = DateTime.Now;
            life.lifeInMilliseconds = emit.particleLifeTime;

            Random rand = new Random();

            int randomPolarDirection = rand.Next(emit.direction, emit.direction + emit.spray);

            Transform transform = particle.GetComponent <Transform>();

            transform.direction = polarToVector(randomPolarDirection) + emitTransform.direction;
            transform.speed     = emit.particleSpeed;
            if (emit.type == EmiterType.Point)
            {
                transform.position = new Vector2(emitTransform.position.X, emitTransform.position.Y);
            }
            else if (emit.type == EmiterType.Sphere)
            {
                int     radius   = rand.Next(0, emit.radius);
                float   xComp    = (float)(rand.NextDouble() * 2) - 1;
                float   yComp    = (float)(rand.NextDouble() * 2) - 1;
                Vector2 rotation = new Vector2(xComp * radius, yComp * radius);
                transform.position = new Vector2(emitTransform.position.X + rotation.X, emitTransform.position.Y + rotation.Y);
            }

            return(particle);
        }
Esempio n. 2
0
        public static void AddFireEmitter(Entity e)
        {
            e.AddComponent <Emiter>();

            Emiter emiter = e.GetComponent <Emiter>();

            emiter.particleLifeTime   = 400;
            emiter.particlesPerSecond = 500;
            emiter.particleSpeed      = 2;
            emiter.spray           = 90;
            emiter.direction       = -135;
            emiter.startColor      = Color.Red;
            emiter.lastEmit        = DateTime.Now;
            emiter.type            = EmiterType.Sphere;
            emiter.radius          = 50;
            emiter.particleTexture = new Texture2D(World.GraphicsDevice, 1, 1);
            emiter.particleTexture.SetData(new Color[] { emiter.startColor });
        }