public static AColor ColorAtPoint(this Bitmap bitmap, int x, int y, bool includeAlpha = false)
{
int pixel = bitmap.GetPixel(x, y);
int red = AColor.GetRedComponent(pixel);
int blue = AColor.GetBlueComponent(pixel);
int green = AColor.GetGreenComponent(pixel);
if (includeAlpha)
{
int alpha = AColor.GetAlphaComponent(pixel);
return(AColor.Argb(alpha, red, green, blue));
}
else
{
return(AColor.Rgb(red, green, blue));
}
}
protected override void Draw(Canvas canvas, Rect bounds)
{
RectF arcBounds = mTempBounds;
arcBounds.Set(bounds);
arcBounds.Inset(mStrokeInset, mStrokeInset);
mCurrentBounds.Set(arcBounds);
int saveCount = canvas.Save();
//draw circle trim
float startAngle = (mStartTrim + mRotation) * 360;
float endAngle = (mEndTrim + mRotation) * 360;
float sweepAngle = endAngle - startAngle;
if (sweepAngle != 0)
{
mPaint.Color = new Color(mColor);
mPaint.SetStyle(Paint.Style.Stroke);
canvas.DrawArc(arcBounds, startAngle, sweepAngle, false, mPaint);
}
//draw water wave
if (mWaveProgress < 1.0f)
{
var nColor = new Color(mColor);
mPaint.Color = Color.Argb((int)(Color.GetAlphaComponent(mColor) * (1.0f - mWaveProgress)), Color.GetRedComponent(mColor), Color.GetGreenComponent(mColor), Color.GetBlueComponent(mColor));
mPaint.SetStyle(Paint.Style.Stroke);
float radius = Math.Min(arcBounds.Width(), arcBounds.Height()) / 2.0f;
canvas.DrawCircle(arcBounds.CenterX(), arcBounds.CenterY(), radius * (1.0f + mWaveProgress), mPaint);
}
//draw ball bounce
if (mPathMeasure != null)
{
mPaint.Color = new Color(mBallColor);
mPaint.SetStyle(Paint.Style.Fill);
canvas.DrawCircle(mCurrentPosition[0], mCurrentPosition[1], mSkipBallSize * mScale, mPaint);
}
canvas.RestoreToCount(saveCount);
}
/// <summary> Determines the skin type of the specified bitmap. </summary>
public static SkinType GetSkinType(Bitmap bmp)
{
if (bmp.Width == bmp.Height * 2)
{
return(SkinType.Type64x32);
}
else if (bmp.Width == bmp.Height)
{
// Minecraft alex skins have this particular pixel with alpha of 0.
int scale = bmp.Width / 64;
#if !ANDROID
int alpha = bmp.GetPixel(54 * scale, 20 * scale).A;
#else
int alpha = AndroidColor.GetAlphaComponent(bmp.GetPixel(54 * scale, 20 * scale));
#endif
return(alpha >= 127 ? SkinType.Type64x64 : SkinType.Type64x64Slim);
}
return(SkinType.Invalid);
}
