3、画眼部
//左眼
CAShapeLayer *leftEyeLayer = [CAShapeLayer layer];
UIBezierPath *leftEyePath = [UIBezierPath bezierPath];
[leftEyePath moveToPoint:CGPointMake(arcCenterX-30, arcCenterY-25)];
[leftEyePath addQuadCurveToPoint:CGPointMake(arcCenterX-15, arcCenterY-45) controlPoint:CGPointMake(arcCenterX-30, arcCenterY-45)];
[leftEyePath addQuadCurveToPoint:CGPointMake(arcCenterX, arcCenterY-25) controlPoint:CGPointMake(arcCenterX, arcCenterY-45)];
[leftEyePath addQuadCurveToPoint:CGPointMake(arcCenterX-15, arcCenterY-5) controlPoint:CGPointMake(arcCenterX, arcCenterY-5)];
[leftEyePath addQuadCurveToPoint:CGPointMake(arcCenterX-30, arcCenterY-25) controlPoint:CGPointMake(arcCenterX-30, arcCenterY-5)];
[self setLayer:leftEyeLayer path:leftEyePath];
//左眼珠
CAShapeLayer *leftEyeballLayer = [CAShapeLayer layer];
UIBezierPath *leftEyeballPath = [UIBezierPath bezierPathWithArcCenter:CGPointMake(arcCenterX-5, arcCenterY-30) radius:2.5 startAngle:0 endAngle:2*M_PI clockwise:YES];
[self setLayer:leftEyeballLayer path:leftEyeballPath ];
//右眼
CAShapeLayer *rightEyeLayer = [CAShapeLayer layer];
UIBezierPath *rightEyePath = [UIBezierPath bezierPath];
[rightEyePath moveToPoint:CGPointMake(arcCenterX, arcCenterY-25)];
[rightEyePath addQuadCurveToPoint:CGPointMake(arcCenterX+15, arcCenterY-45) controlPoint:CGPointMake(arcCenterX, arcCenterY-45)];
[rightEyePath addQuadCurveToPoint:CGPointMake(arcCenterX+30, arcCenterY-25) controlPoint:CGPointMake(arcCenterX+30, arcCenterY-45)];
[rightEyePath addQuadCurveToPoint:CGPointMake(arcCenterX+15, arcCenterY-5) controlPoint:CGPointMake(arcCenterX+30, arcCenterY-5)];
[rightEyePath addQuadCurveToPoint:CGPointMake(arcCenterX, arcCenterY-25) controlPoint:CGPointMake(arcCenterX, arcCenterY-5)];
[self setLayer:rightEyeLayer path:rightEyePath ];
//右眼珠
CAShapeLayer *rightEyeballLayer = [CAShapeLayer layer];
UIBezierPath *rightEyeballPath = [UIBezierPath bezierPathWithArcCenter:CGPointMake(arcCenterX+5, arcCenterY-30) radius:2.5 startAngle:0 endAngle:2*M_PI clockwise:YES];
[self setLayer:rightEyeballLayer path:rightEyeballPath];
4、画鼻子、嘴巴、胡须
//鼻子
CAShapeLayer *noseLayer = [CAShapeLayer layer];
UIBezierPath *nosePath = [UIBezierPath bezierPathWithArcCenter:CGPointMake(arcCenterX, arcCenterY) radius:10 startAngle:0 endAngle:2*M_PI clockwise:YES];
[self setLayer:noseLayer path:nosePath ];
//鼻子光晕
CAShapeLayer *noseHaloLayer = [CAShapeLayer layer];
UIBezierPath *noseHaloPath = [UIBezierPath bezierPathWithArcCenter:CGPointMake(arcCenterX-4, arcCenterY-5) radius:2.5 startAngle:0 endAngle:2*M_PI clockwise:YES];
[self setLayer:noseHaloLayer path:noseHaloPath ];
//嘴巴
CAShapeLayer *mouthLayer = [CAShapeLayer layer];
UIBezierPath *mouthPath = [UIBezierPath bezierPath];
[mouthPath moveToPoint:CGPointMake(arcCenterX-60, arcCenterY+25)];
[mouthPath addQuadCurveToPoint:CGPointMake(arcCenterX+60, arcCenterY+25) controlPoint:CGPointMake(arcCenterX, arcCenterY+90)];
[self setLayer:mouthLayer path:mouthPath];
CAShapeLayer *mouthLayer1 = [CAShapeLayer layer];
UIBezierPath *mouthPath1 = [UIBezierPath bezierPath];
[mouthPath1 moveToPoint:CGPointMake(arcCenterX, arcCenterY+10)];
[mouthPath1 addLineToPoint:CGPointMake(arcCenterX, arcCenterY+55)];
[self setLayer:mouthLayer1 path:mouthPath1];
//胡须
[self addBeardFromPoint:CGPointMake(arcCenterX-58, arcCenterY-5) toPoint:CGPointMake(arcCenterX-15, arcCenterY+10) ];
[self addBeardFromPoint:CGPointMake(arcCenterX-68, arcCenterY+15) toPoint:CGPointMake(arcCenterX-15, arcCenterY+20) ];
[self addBeardFromPoint:CGPointMake(arcCenterX-61, arcCenterY+45) toPoint:CGPointMake(arcCenterX-15, arcCenterY+30) ];
[self addBeardFromPoint:CGPointMake(arcCenterX+58, arcCenterY-5) toPoint:CGPointMake(arcCenterX+15, arcCenterY+10) ];
[self addBeardFromPoint:CGPointMake(arcCenterX+68, arcCenterY+15) toPoint:CGPointMake(arcCenterX+15, arcCenterY+20) ];
[self addBeardFromPoint:CGPointMake(arcCenterX+61, arcCenterY+45) toPoint:CGPointMake(arcCenterX+15, arcCenterY+30) ];
