void DrawParticle(ShaderResourceView shaderResourceToUse, Vector2 startPosition, Vector2 spriteSize, float uvOffset, RectangleF textureRegionToDraw, Vector2 velocity, double timeToLive, int?extraInt1, double rotationVelocity)
{
var factor = _spriteSize.X / spriteSize.X;
SpriteBatchParticle p = new SpriteBatchParticle()
{
Position = startPosition * factor,
Elapsed = 0,
TimeToLive = timeToLive,
Velocity = velocity,
Size = spriteSize,
IsAlive = true,
TextureView = shaderResourceToUse,
RotationVelocity = rotationVelocity,
TextureRegionToDraw = textureRegionToDraw,
ExtraInt1 = extraInt1.HasValue ? (int)extraInt1 : 0
};
m_particles.Add(p);
//return p;
}
void DrawParticle(ShaderResourceView shaderResourceToUse, Vector2 startPosition, Vector2 spriteSize, float uvOffset, RectangleF textureRegionToDraw, Vector2 velocity, double timeToLive, int? extraInt1, double rotationVelocity)
{
var factor = _spriteSize.X / spriteSize.X;
SpriteBatchParticle p = new SpriteBatchParticle()
{
Position = startPosition * factor,
Elapsed = 0,
TimeToLive = timeToLive,
Velocity = velocity,
Size = spriteSize,
IsAlive = true,
TextureView = shaderResourceToUse,
RotationVelocity = rotationVelocity,
TextureRegionToDraw = textureRegionToDraw,
ExtraInt1 = extraInt1.HasValue ? (int)extraInt1 : 0
};
m_particles.Add(p);
//return p;
}
public void End()
{
int pc = m_particles.Count;
for (int i = pc - 1; i >= 0; i--)
{
SpriteBatchParticle p = m_particles[i];
if (p.IsAlive)
{
p.Position += p.Velocity;
p.Elapsed += 15;
//p.RotationVelocity += 0.1;
if (double.IsNaN(p.TimeToLive))
{
//Sprite doesnt die and hence TimToLive is NAN and Opacity = 1
p.Opacity = 1.0;
RenderParticle(m_viewProj, p.Position, p.Size, (float)p.Opacity, m_d3dContext, p.TextureView, (float)p.RotationVelocity, p.TextureRegionToDraw);
}
else
{
//These sprites will eventually die (TimeToLive)
p.Opacity = Lerp(1, 0, (float)(p.Elapsed / p.TimeToLive));
if (p.Elapsed > p.TimeToLive)
{
p.IsAlive = false;
}
else
{
RenderParticle(m_viewProj, p.Position, p.Size, (float)p.Opacity, m_d3dContext, p.TextureView, (float)p.RotationVelocity, p.TextureRegionToDraw);
}
if (p.Opacity <= 0.1d)
{
p.IsAlive = false;
}
}
}
}
//Do this expensive remove every 60 frames only
//frameToDoRemove_60++;
//if (frameToDoRemove_60 == 60)
//{
m_particles.RemoveAll(x => x.IsAlive == false);
// frameToDoRemove_60 = 0;
//}
////DEBUGGER
//if (debugBackEvery60Frames == 10)
//{
// Messenger.Default.Send(new DebuggingRendererMessage("",
// "Sprites to render : " + m_particles.Where(x => x.IsAlive).Count().ToString(),
// string.Empty,
// string.Empty
// ) { Identifier = "SB1" });
// debugBackEvery60Frames = 0;
//}
debugBackEvery60Frames++;
}
