public void SetOpacity(float opacity)
{
if (Opacity == opacity)
{
return;
}
Sprite.Flush();
var newBlendState = Device.BlendState.Clone();
if (opacity >= 1 || opacity < 0)
{
newBlendState.ColorSourceBlend = Blend.SourceAlpha;
newBlendState.ColorDestinationBlend = Blend.InverseSourceAlpha;
newBlendState.AlphaSourceBlend = Blend.One;
newBlendState.BlendFactor = new Color(255, 255, 255, 255);
Device.BlendState = newBlendState;
DisableAlphaTest();
}
else
{
EnableAlphaTest();
newBlendState.ColorSourceBlend = Blend.BlendFactor;
newBlendState.ColorDestinationBlend = Blend.InverseBlendFactor;
newBlendState.AlphaSourceBlend = Blend.SourceAlpha;
newBlendState.BlendFactor = new Color((byte)(255 * opacity), (byte)(255 * opacity), (byte)(255 * opacity), (byte)(255 * opacity));
Device.BlendState = newBlendState;
}
Opacity = opacity;
Sprite.Flush();
}
public void SetBlend(bool value, float rate = 1F)
{
if (value == Blending)
{
return;
}
Blending = value;
BlendRate = 1F;
Sprite.Flush();
Sprite.End();
if (Blending)
{
Sprite.Begin(SpriteFlags.DoNotSaveState);
EnableAlphaTest();
var newBlendState = Device.BlendState.Clone();
newBlendState.ColorSourceBlend = Blend.BlendFactor;
newBlendState.ColorDestinationBlend = Blend.One;
newBlendState.BlendFactor = new Color((byte)(255 * rate), (byte)(255 * rate), (byte)(255 * rate), (byte)(255 * rate));
Device.BlendState = newBlendState;
}
else
{
Sprite.Begin(SpriteFlags.AlphaBlend);
}
Device.SetRenderTarget(CurrentRenderTarget);
}
public void SetRenderTarget(RenderTarget2D renderTarget)
{
if (CurrentRenderTarget == renderTarget)
{
return;
}
Sprite.Flush();
CurrentRenderTarget = renderTarget;
Device.SetRenderTarget(renderTarget);
}