Combining shapes to make a face.

C4WorkSpace.m

//
// C4WorkSpace.m
//
// Created by Travis Kirton.
//

#import "C4WorkSpace.h"

@implementation C4WorkSpace {
    C4Shape *face;
}

-(void)setup {
    face = [C4Shape ellipse:CGRectMake(0, 0, 200, 320)];
    
    CGPoint hairPts[7] = {
        CGPointMake(0, 80),
        CGPointMake(20, 20),
        CGPointMake(40, 60),
        CGPointMake(80, 30),
        CGPointMake(70, 60),
        CGPointMake(100, 50),
        CGPointMake(90, 80)
    };
    C4Shape *hair = [C4Shape polygon:hairPts pointCount:7];
    hair.center = CGPointMake(face.width/2+4,-11);

    C4Shape *leftEye = [C4Shape ellipse:CGRectMake(40, 100, 50, 30)];
    leftEye.fillColor = [UIColor colorWithWhite:200 alpha:1.0f];

    C4Shape *leftIris = [C4Shape ellipse:CGRectMake(30, 10, 10, 10)];
    leftIris.fillColor = C4GREY;
    leftIris.lineWidth = 0.0f;
    [leftEye addShape:leftIris];
    
    C4Shape *rightEye = [C4Shape ellipse:CGRectMake(160, 100, 50, 30)];;
    rightEye.fillColor = leftEye.fillColor;
    [rightEye addShape:[leftIris copy]];
    
    C4Shape *nose = [C4Shape arcWithCenter:CGPointMake(rightEye.center.x, rightEye.center.y) radius:60.0f startAngle:HALF_PI+0.5f endAngle:PI clockwise:YES];
    nose.fillColor = [UIColor clearColor];
    
    CGPoint noseLinePts[2] = {CGPointMake(0,nose.height),CGPointMake(nose.width+0.5f, nose.height)};
    C4Shape *noseLine = [C4Shape line:noseLinePts];
    [nose addShape:noseLine];

    C4Shape *mouth = [C4Shape arcWithCenter:CGPointMake(face.width / 2 + 5.0f, face.height / 2 + 10.0f) radius:60.0f startAngle:QUARTER_PI+QUARTER_PI/2 endAngle:HALF_PI+QUARTER_PI * 3/2 clockwise:YES];
    mouth.lineWidth = 10.0f;
    mouth.fillColor = [UIColor clearColor];
    mouth.lineCap = CAPROUND;

    C4Shape *mouthLine = [mouth copy];
    mouthLine.lineWidth = 2.0f;
    mouthLine.strokeColor = [leftEye.fillColor colorWithAlphaComponent:0.66f];
    
    [face addShape:hair];
    [face addShape:leftEye];
    [face addShape:rightEye];
    [face addShape:nose];
    [face addShape:mouth];
    [face addShape:mouthLine];
    [self.canvas addShape:face];
    face.center = self.canvas.center;
}

@end