/*-------------------------------------
* PUBLIC METHODS
*-----------------------------------*/
public override void Begin()
{
base.Begin();
for (var i = 0; i < m_NumParticles; i++)
{
var size = 0.02f + 0.02f * (float)s_Random.NextDouble();
var particle = new RectangleEntity(m_X, m_Y, size, size);
var theta = 2.0f * (float)Math.PI * (float)s_Random.NextDouble();
var r = 0.4f + 0.4f * (float)s_Random.NextDouble();
var a = 0.2f + 0.2f * (float)s_Random.NextDouble();
var w = ((float)s_Random.NextDouble() - 0.5f) * 2.0f * (float)Math.PI * 6.0f;
var vx = (float)Math.Cos(theta) * r;
var vy = (float)Math.Sin(theta) * r;
var body = particle.GetComponent <BodyComponent>();
body.Angle = theta;
body.AngularVelocity = w;
body.Velocity = new Vector2(vx, vy);
particle.AddComponents(
new LifetimeComponent {
Lifetime = a
}
);
Game.Inst.Scene.AddEntity(particle);
}
}
/*-------------------------------------
* NON-PUBLIC METHODS
*-----------------------------------*/
private void SpawnParticles()
{
if (!DisableAll)
{
Game.Inst.SetTimeout(() => Begin(), 0.1f);
}
var ball = m_Ball.GetComponent <BodyComponent>();
if (ball.IsStatic)
{
return;
}
var p = ball.Position;
var v = ball.Velocity;
for (var i = 0; i < m_NumParticles; i++)
{
var x = 0.08f * (Pong.Rnd() - 0.5f);
var y = 0.08f * (Pong.Rnd() - 0.5f);
var size = 0.01f + 0.01f * Pong.Rnd();
var particle = new RectangleEntity(p.X + x, p.Y + y, size, size);
var theta = 2.0f * (float)Math.PI * Pong.Rnd();
var r = 0.05f + 0.1f * Pong.Rnd();
var a = 0.5f + 0.6f * Pong.Rnd();
var w = (Pong.Rnd() - 0.5f) * 2.0f * (float)Math.PI * 4.0f;
var vx = 0.3f * v.X + (float)Math.Cos(theta) * r;
var vy = 0.3f * v.Y + (float)Math.Sin(theta) * r;
var body = particle.GetComponent <BodyComponent>();
body.Angle = theta;
body.AngularVelocity = w;
body.Velocity = new Vector2(vx, vy);
particle.AddComponents(
new LifetimeComponent {
Lifetime = a
},
new Components.GlowComponent()
);
Game.Inst.Scene.AddEntity(particle);
}
}