protected internal override void ComputeRender(float renderProgress)
{
if (mCurrentBounds.Width() <= 0)
{
return;
}
RectF arcBounds = mCurrentBounds;
//compute gas tube bounds
mBottleBounds.Set(arcBounds.CenterX() - mBottleWidth / 2.0f, arcBounds.CenterY() - mBottleHeight / 2.0f, arcBounds.CenterX() + mBottleWidth / 2.0f, arcBounds.CenterY() + mBottleHeight / 2.0f);
//compute pipe body bounds
mWaterBounds.Set(mBottleBounds.Left + mStrokeWidth * 1.5f, mBottleBounds.Top + mWaterLowestPointToBottleneckDistance, mBottleBounds.Right - mStrokeWidth * 1.5f, mBottleBounds.Bottom - mStrokeWidth * 1.5f);
//compute wave progress
float totalWaveProgress = renderProgress * mWaveCount;
float currentWaveProgress = totalWaveProgress - ((int)totalWaveProgress);
if (currentWaveProgress > 0.5f)
{
mProgress = 1.0f - MATERIAL_INTERPOLATOR.GetInterpolation((currentWaveProgress - 0.5f) * 2.0f);
}
else
{
mProgress = MATERIAL_INTERPOLATOR.GetInterpolation(currentWaveProgress * 2.0f);
}
//init water drop holders
if (mWaterDropHolders.Count == 0)
{
InitWaterDropHolders(mBottleBounds, mWaterBounds);
}
//compute the location of these water drops
foreach (WaterDropHolder waterDropHolder in mWaterDropHolders)
{
if (waterDropHolder.mDelayDuration < renderProgress && waterDropHolder.mDelayDuration + waterDropHolder.mDuration > renderProgress)
{
float riseProgress = (renderProgress - waterDropHolder.mDelayDuration) / waterDropHolder.mDuration;
riseProgress = riseProgress < 0.5f ? riseProgress * 2.0f : 1.0f - (riseProgress - 0.5f) * 2.0f;
waterDropHolder.mCurrentY = waterDropHolder.mInitY - MATERIAL_INTERPOLATOR.GetInterpolation(riseProgress) * waterDropHolder.mRiseHeight;
waterDropHolder.mNeedDraw = true;
}
else
{
waterDropHolder.mNeedDraw = false;
}
}
//measure loading text
mPaint.TextSize = mTextSize;
mPaint.GetTextBounds(LOADING_TEXT, 0, LOADING_TEXT.Length, mLoadingBounds);
}
private Path CreateRiverPath(RectF arcBounds)
{
if (mRiverPath != null)
{
return(mRiverPath);
}
mRiverPath = new Path();
RectF rectF = new RectF(arcBounds.CenterX() - mRiverWidth / 2.0f, arcBounds.CenterY() - mRiverHeight / 2.0f, arcBounds.CenterX() + mRiverWidth / 2.0f, arcBounds.CenterY() + mRiverHeight / 2.0f);
rectF.Inset(mRiverBankWidth / 2.0f, mRiverBankWidth / 2.0f);
mRiverPath.AddRect(rectF, Path.Direction.Cw);
return(mRiverPath);
}
protected override void Draw(Canvas canvas, Rect bounds)
{
int saveCount = canvas.Save();
RectF arcBounds = mTempBounds;
arcBounds.Set(bounds);
mPaint.Color = new Color(mColor);
//calculate fish clip bounds
//clip the width of the fish need to increase mPathDottedLineSize * 1.2f
RectF fishRectF = new RectF(mFishHeadPos[0] - mFishWidth / 2.0f - mPathDottedLineSize * 1.2f, mFishHeadPos[1] - mFishHeight / 2.0f, mFishHeadPos[0] + mFishWidth / 2.0f + mPathDottedLineSize * 1.2f, mFishHeadPos[1] + mFishHeight / 2.0f);
Matrix matrix = new Matrix();
matrix.PostRotate(mFishRotateDegrees, fishRectF.CenterX(), fishRectF.CenterY());
matrix.MapRect(fishRectF);
//draw river
int riverSaveCount = canvas.Save();
mPaint.SetStyle(Paint.Style.Stroke);
canvas.ClipRect(fishRectF, Region.Op.Difference);
canvas.DrawPath(CreateRiverPath(arcBounds), mPaint);
canvas.RestoreToCount(riverSaveCount);
//draw fish
int fishSaveCount = canvas.Save();
mPaint.SetStyle(Paint.Style.Fill);
canvas.Rotate(mFishRotateDegrees, mFishHeadPos[0], mFishHeadPos[1]);
canvas.ClipPath(CreateFishEyePath(mFishHeadPos[0], mFishHeadPos[1] - mFishHeight * 0.06f), Region.Op.Difference);
canvas.DrawPath(CreateFishPath(mFishHeadPos[0], mFishHeadPos[1]), mPaint);
canvas.RestoreToCount(fishSaveCount);
canvas.RestoreToCount(saveCount);
}
private Path CreateWaitPath(RectF bounds)
{
Path path = new Path();
//create circle
path.MoveTo(bounds.CenterX() + mWaitCircleRadius, bounds.CenterY());
//create w
path.CubicTo(bounds.CenterX() + mWaitCircleRadius, bounds.CenterY() - mWaitCircleRadius * 0.5f, bounds.CenterX() + mWaitCircleRadius * 0.3f, bounds.CenterY() - mWaitCircleRadius, bounds.CenterX() - mWaitCircleRadius * 0.35f, bounds.CenterY() + mWaitCircleRadius * 0.5f);
path.QuadTo(bounds.CenterX() + mWaitCircleRadius, bounds.CenterY() - mWaitCircleRadius, bounds.CenterX() + mWaitCircleRadius * 0.05f, bounds.CenterY() + mWaitCircleRadius * 0.5f);
path.LineTo(bounds.CenterX() + mWaitCircleRadius * 0.75f, bounds.CenterY() - mWaitCircleRadius * 0.2f);
path.CubicTo(bounds.CenterX(), bounds.CenterY() + mWaitCircleRadius * 1f, bounds.CenterX() + mWaitCircleRadius, bounds.CenterY() + mWaitCircleRadius * 0.4f, bounds.CenterX() + mWaitCircleRadius, bounds.CenterY());
//create arc
path.ArcTo(new RectF(bounds.CenterX() - mWaitCircleRadius, bounds.CenterY() - mWaitCircleRadius, bounds.CenterX() + mWaitCircleRadius, bounds.CenterY() + mWaitCircleRadius), 0, -359);
path.ArcTo(new RectF(bounds.CenterX() - mWaitCircleRadius, bounds.CenterY() - mWaitCircleRadius, bounds.CenterX() + mWaitCircleRadius, bounds.CenterY() + mWaitCircleRadius), 1, -359);
path.ArcTo(new RectF(bounds.CenterX() - mWaitCircleRadius, bounds.CenterY() - mWaitCircleRadius, bounds.CenterX() + mWaitCircleRadius, bounds.CenterY() + mWaitCircleRadius), 2, -2);
//create w
path.CubicTo(bounds.CenterX() + mWaitCircleRadius, bounds.CenterY() - mWaitCircleRadius * 0.5f, bounds.CenterX() + mWaitCircleRadius * 0.3f, bounds.CenterY() - mWaitCircleRadius, bounds.CenterX() - mWaitCircleRadius * 0.35f, bounds.CenterY() + mWaitCircleRadius * 0.5f);
path.QuadTo(bounds.CenterX() + mWaitCircleRadius, bounds.CenterY() - mWaitCircleRadius, bounds.CenterX() + mWaitCircleRadius * 0.05f, bounds.CenterY() + mWaitCircleRadius * 0.5f);
path.LineTo(bounds.CenterX() + mWaitCircleRadius * 0.75f, bounds.CenterY() - mWaitCircleRadius * 0.2f);
path.CubicTo(bounds.CenterX(), bounds.CenterY() + mWaitCircleRadius * 1f, bounds.CenterX() + mWaitCircleRadius, bounds.CenterY() + mWaitCircleRadius * 0.4f, bounds.CenterX() + mWaitCircleRadius, bounds.CenterY());
return(path);
}