/// <summary>
/// 更新粒子物理属性，如果粒子超过边界，将其回收
/// </summary>
/// <param name="elapsedTime"></param>
/// <param name="size"></param>
public void Update(float elapsedTime, Vector2 size)
{
{
if (surfaceLoaded)
{
for (int i = ActiveParticles.Count - 1; i >= 0; i--)
{
var p = ActiveParticles[i];
if (p == null)
{
ActiveParticles.RemoveAt(i);
return;
}
if (p.Position.X > 0 - size.Y * (float)Math.Tan(1.5708 - (minRotationAngle + maxRotationAngle) / 2) && p.Position.X <= size.X && p.Position.Y <= size.Y)
{
p.Update(elapsedTime);
}
else
{
ActiveParticles.RemoveAt(i);
FreeParticles.Push(p);
}
}
}
}
}
internal void ImmersiveOut()
{
inited = false;
for (int i = ActiveParticles.Count - 1; i >= 0; i--)
{
var p = ActiveParticles[i];
ActiveParticles.RemoveAt(i);
FreeParticles.Push(p);
}
isImmersive = false;
}
// 刷新所有的激活粒子
public virtual void Update(float elapsedTime)
{
if (surfaceLoaded)
{
// 从队列的末尾向前遍历，这样执行 Remove 的时候不会出错
for (int i = activeParticles.Count - 1; i >= 0; i--)
{
Particle particle = activeParticles[i];
if (particle == null)
{
ActiveParticles.RemoveAt(i);
return;
}
if (!particle.Update(elapsedTime))
{
// 如果粒子不再存活，将它去掉
activeParticles.RemoveAt(i);
freeParticles.Push(particle);
}
}
}
}
/// <summary>
/// 更新粒子物理属性，如果粒子超过边界，将其回收
/// </summary>
/// <param name="elapsedTime"></param>
/// <param name="size"></param>
public void Update(float elapsedTime, Vector2 size)
{
if (surfaceLoaded)
{
for (int i = ActiveParticles.Count - 1; i >= 0; i--)
{
var p = ActiveParticles[i];
if (p == null)
{
ActiveParticles.RemoveAt(i);
return;
}
if (p.Position.X < (size.X + (surfacesBounds[p.Key].Width) / 2))
{
p.Update(elapsedTime);
}
else
{
ActiveParticles.RemoveAt(i);
FreeParticles.Push(p);
}
}
}
}