void _updateCircleColor()
{
float colorProgress = LikeButtonUtil.clamp(this.outerCircleRadiusProgress, 0.5f, 1);
colorProgress = LikeButtonUtil.mapValueFromRangeToRange(colorProgress, 0.5f, 1, 0, 1);
this.circlePaint.color = Color.lerp(this.circleColor.start, this.circleColor.end, colorProgress);
}
void _updateBubblesPaints()
{
float progress1 = LikeButtonUtil.clamp(this.m_CurrentProgress, 0.6f, 1);
int alpha =
(int)LikeButtonUtil.mapValueFromRangeToRange(progress1, 0.6f, 1, 255, 0);
if (this.m_CurrentProgress < 0.5)
{
float progress2 =
LikeButtonUtil.mapValueFromRangeToRange(this.m_CurrentProgress, 0, 0.5f, 0, 1);
this.m_CirclePaints[0].color = Color.lerp(this.m_Color1, this.m_Color2, progress2).withAlpha(alpha);
this.m_CirclePaints[1].color = Color.lerp(this.m_Color2, this.m_Color3, progress2).withAlpha(alpha);
this.m_CirclePaints[2].color = Color.lerp(this.m_Color3, this.m_Color4, progress2).withAlpha(alpha);
this.m_CirclePaints[3].color = Color.lerp(this.m_Color4, this.m_Color1, progress2).withAlpha(alpha);
}
else
{
float progress3 =
LikeButtonUtil.mapValueFromRangeToRange(this.m_CurrentProgress, 0.5f, 1, 0, 1);
this.m_CirclePaints[0].color = Color.lerp(this.m_Color2, this.m_Color3, progress3).withAlpha(alpha);
this.m_CirclePaints[1].color = Color.lerp(this.m_Color3, this.m_Color4, progress3).withAlpha(alpha);
this.m_CirclePaints[2].color = Color.lerp(this.m_Color4, this.m_Color1, progress3).withAlpha(alpha);
this.m_CirclePaints[3].color = Color.lerp(this.m_Color1, this.m_Color2, progress3).withAlpha(alpha);
}
}
void _updateInnerBubblesPosition()
{
this.m_CurrentRadius2 = this.m_CurrentProgress < 0.3f
? LikeButtonUtil.mapValueFromRangeToRange(this.m_CurrentProgress, 0, 0.3f, 0, this.m_MaxInnerDotsRadius)
: this.m_MaxInnerDotsRadius;
if (this.m_CurrentProgress == 0)
{
this.m_CurrentDotSize2 = 0;
}
else if (this.m_CurrentProgress < 0.2f)
{
this.m_CurrentDotSize2 = this.m_MaxDotSize;
}
else if (this.m_CurrentProgress < 0.5f)
{
this.m_CurrentDotSize2 = LikeButtonUtil.mapValueFromRangeToRange(this.m_CurrentProgress, 0.2f, 0.5f,
this.m_MaxDotSize, 0.3f * this.m_MaxDotSize);
}
else
{
this.m_CurrentDotSize2 =
LikeButtonUtil.mapValueFromRangeToRange(this.m_CurrentProgress, 0.5f, 1, this.m_MaxDotSize * 0.3f,
0);
}
}
void _updateOuterBubblesPosition()
{
if (this.m_CurrentProgress < 0.3f)
{
this.m_CurrentRadius1 = LikeButtonUtil.mapValueFromRangeToRange(this.m_CurrentProgress, 0, 0.3f, 0,
this.m_MaxOuterDotsRadius * 0.8f);
}
else
{
this.m_CurrentRadius1 = LikeButtonUtil.mapValueFromRangeToRange(this.m_CurrentProgress, 0.3f, 1,
0.8f * this.m_MaxOuterDotsRadius, this.m_MaxOuterDotsRadius);
}
if (this.m_CurrentProgress == 0)
{
this.m_CurrentDotSize1 = 0;
}
else if (this.m_CurrentProgress < 0.7f)
{
this.m_CurrentDotSize1 = this.m_MaxDotSize;
}
else
{
this.m_CurrentDotSize1 =
LikeButtonUtil.mapValueFromRangeToRange(this.m_CurrentProgress, 0.7f, 1, this.m_MaxDotSize, 0);
}
}
void _drawOuterBubblesFrame(Canvas canvas)
{
if (this.m_CirclePaints.Count == 0)
{
return;
}
for (int i = 0; i < this.m_BubblesCount; i++)
{
float cX = this.m_CenterX + this.m_CurrentRadius1 *
Mathf.Cos(i * LikeButtonUtil.degToRad(deg: this.m_OuterBubblesPositionAngle));
float cY = this.m_CenterY + this.m_CurrentRadius1 *
Mathf.Sin(i * LikeButtonUtil.degToRad(deg: this.m_OuterBubblesPositionAngle));
canvas.drawCircle(new Offset(dx: cX, dy: cY), radius: this.m_CurrentDotSize1,
this.m_CirclePaints[i % this.m_CirclePaints.Count]);
}
}
Widget _buildLikeButtonWidget()
{
return(new AnimatedBuilder(
animation: this._controller,
builder: (c, w) => {
float left = 0.0f;
float right = 0.0f;
float top = 0.0f;
float bottom = 0.0f;
if (this.widget.likeButtonPadding != null)
{
left = this.widget.likeButtonPadding.left;
right = this.widget.likeButtonPadding.right;
top = this.widget.likeButtonPadding.top;
bottom = this.widget.likeButtonPadding.bottom;
}
List <Widget> children = new List <Widget>();
if (this.widget.isShowBubbles)
{
children.Add(
new Positioned(
top: (this.widget.size + top + bottom - this.widget.bubblesSize) / 2.0f,
left: (this.widget.size + left + right - this.widget.bubblesSize) / 2.0f,
child: new CustomPaint(
size: new Size(this.widget.bubblesSize, this.widget.bubblesSize),
painter: new BubblesPainter(
currentProgress: this._bubblesAnimation.value,
color1: this.widget.bubblesColor.dotPrimaryColor,
color2: this.widget.bubblesColor.dotSecondaryColor,
color3: this.widget.bubblesColor.dotThirdColorReal,
color4: this.widget.bubblesColor.dotLastColorReal
)
)
)
);
}
children.Add(
new Positioned(
top: (this.widget.size + top + bottom - this.widget.circleSize) / 2.0f,
left: (this.widget.size + left + right - this.widget.circleSize) / 2.0f,
child: new CustomPaint(
size: new Size(this.widget.circleSize, this.widget.circleSize),
painter: new CirclePainter(
innerCircleRadiusProgress: this._innerCircleAnimation.value,
outerCircleRadiusProgress: this._outerCircleAnimation.value,
circleColor: this.widget.circleColor
)
)
)
);
var likeWidget = this.widget.likeBuilder?.Invoke(this._isLiked) ??
LikeButtonUtil.defaultWidgetBuilder(this._isLiked, this.widget.size);
children.Add(
new Container(
padding: this.widget.likeButtonPadding,
child: Transform.scale(
alignment: Alignment.center,
scale: this._isLiked && this._controller.isAnimating
? this._scaleAnimation.value
: 1,
child: new SizedBox(
child: likeWidget,
height: this.widget.size,
width: this.widget.size
)
)
)
);
return new Stack(
overflow: Overflow.visible,
children: children
);
}
));
}
