/*

     File: ASCSlideCreatingGeometries.m

 Abstract: Presents the different types of geometry that one can create programmatically.

  Version: 1.1

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 */

#import "ASCPresentationViewController.h"

#import "ASCSlideTextManager.h"

#import "ASCSlide.h"

#import "Utils.h"

#import <GLKit/GLKMath.h>

// Data structure representing a vertex that will be used to create custom geometries

typedef struct {

    float x, y, z;    // position

    float nx, ny, nz; // normal

    float s, t;       // texture coordinates

} ASCVertex;

@interface ASCSlideCreatingGeometries : ASCSlide

@end

@implementation ASCSlideCreatingGeometries {

    SCNNode *_carouselNode;

    SCNNode *_textNode;

    SCNNode *_level2OutlineNode, *_level2Node;

}

- (NSUInteger)numberOfSteps {

    return 7;

}

- (void)setupSlideWithPresentationViewController:(ASCPresentationViewController *)presentationViewController {

    // Set the slide's title

    self.textManager.title = @"Creating Geometries";

}

- (void)presentStepIndex:(NSUInteger)index withPresentionViewController:(ASCPresentationViewController *)presentationViewController {

    switch (index) {

        case 0:

            break;

        case 1:

            // Set the slide's subtitle and display the primitves

            self.textManager.subtitle = @"Built-in parametric primitives";

            [self presentPrimitives];

            break;

        case 2:

        {

            // Hide the carousel and illustrate SCNText

            [self.textManager flipOutTextOfType:ASCTextTypeSubtitle];

            [SCNTransaction begin];

            [SCNTransaction setAnimationDuration:0.5];

            [SCNTransaction setCompletionBlock:^{

                [_carouselNode removeFromParentNode];

                [SCNTransaction begin];

                [SCNTransaction setAnimationDuration:1.0];

                {

                    [self presentTextNode];

                    _textNode.opacity = 1.0;

                }

                [SCNTransaction commit];

            }];

            {

                _carouselNode.opacity = 0.0;

            }

            [SCNTransaction commit];

            self.textManager.subtitle = @"Built-in 3D text";

            [self.textManager addBullet:@"SCNText" atLevel:0];

            [self.textManager flipInTextOfType:ASCTextTypeSubtitle];

            [self.textManager flipInTextOfType:ASCTextTypeBullet];

            break;

        }

        case 3:

        {

            // Hide the 3D text and introduce SCNShape

            [SCNTransaction begin];

            [SCNTransaction setAnimationDuration:0.5];

            [SCNTransaction setCompletionBlock:^{

                [_textNode removeFromParentNode];

                presentationViewController.showsNewInSceneKitBadge = YES;

                [self.textManager flipOutTextOfType:ASCTextTypeSubtitle];

                [self.textManager flipOutTextOfType:ASCTextTypeBullet];

                self.textManager.subtitle = @"3D Shapes";

                [self.textManager addBullet:@"SCNShape" atLevel:0];

                [self.textManager addBullet:@"Initializes with a NSBezierPath" atLevel:0];

                [self.textManager addBullet:@"Extrusion and chamfer" atLevel:0];

                [self.textManager addCode:@"aNode.geometry = [SCNShape #shapeWithPath:#aBezierPath #extrusionDepth:#10];"];

                [self.textManager flipInTextOfType:ASCTextTypeSubtitle];

                [self.textManager flipInTextOfType:ASCTextTypeBullet];

                [self.textManager flipInTextOfType:ASCTextTypeCode];

            }];

            {

                _textNode.opacity = 0.0;

            }

            [SCNTransaction commit];

            break;

        }

        case 4:

        {

            [self.textManager fadeOutTextOfType:ASCTextTypeBullet];

            [self.textManager fadeOutTextOfType:ASCTextTypeCode];

            // Illustrate SCNShape, show the floor ouline

            _level2Node = [self level2Node];

            _level2OutlineNode = [self level2OutlineNode];

            _level2Node.position = _level2OutlineNode.position = SCNVector3Make(-11, 0, -5);

            _level2Node.rotation = _level2OutlineNode.rotation = SCNVector4Make(1, 0, 0, -M_PI_2);

            _level2Node.opacity = _level2OutlineNode.opacity = 0.0;

            _level2Node.scale = SCNVector3Make(0.03, 0.03, 0);

            _level2OutlineNode.scale = SCNVector3Make(0.03, 0.03, 0.05);

            [self.groundNode addChildNode:_level2OutlineNode];

            [self.groundNode addChildNode:_level2Node];

            [SCNTransaction begin];

            [SCNTransaction setAnimationDuration:1.0];

            {

                _level2OutlineNode.opacity = 1.0;

            }

            [SCNTransaction commit];

            break;

        }

        case 5:

        {

            presentationViewController.showsNewInSceneKitBadge = NO;

            // Show the extruded floor

            [SCNTransaction begin];

            [SCNTransaction setAnimationDuration:1.0];

            {

                _level2Node.opacity = 1.0;

                _level2Node.scale = SCNVector3Make(0.03, 0.03, 0.05);

                [SCNTransaction setCompletionBlock:^{

                    [SCNTransaction begin];

                    [SCNTransaction setAnimationDuration:1.5];

                    {

                        // move the camera a little higher

                        presentationViewController.cameraNode.position = SCNVector3Make(0, 7, -3);

                        presentationViewController.cameraPitch.rotation = SCNVector4Make(1, 0, 0, -M_PI_4 * 0.7);

                    }

                    [SCNTransaction commit];

                }];

            }

            [SCNTransaction commit];

            break;

        }

        case 6:

        {

            [self.textManager flipOutTextOfType:ASCTextTypeSubtitle];

            [self.textManager flipOutTextOfType:ASCTextTypeBullet];

            // Example of a custom geometry (Möbius strip)

            self.textManager.subtitle = @"Custom geometry";

            [self.textManager addBullet:@"Custom vertices, normals and texture coordinates" atLevel:0];

            [self.textManager addBullet:@"SCNGeometry" atLevel:0];

            [self.textManager flipInTextOfType:ASCTextTypeSubtitle];

            [self.textManager flipInTextOfType:ASCTextTypeBullet];

            [SCNTransaction begin];

            [SCNTransaction setAnimationDuration:1.0];

            {

                // move the camera back to its previous position

                presentationViewController.cameraNode.position = SCNVector3Make(0, 0, 0);

                presentationViewController.cameraPitch.rotation = SCNVector4Make(1, 0, 0, self.pitch * M_PI / 180.0);

                _level2Node.opacity = 0.0;

                _level2OutlineNode.opacity = 0.0;

                [SCNTransaction setCompletionBlock:^{

                    SCNNode *mobiusNode = [SCNNode node];

                    mobiusNode.geometry = [self mobiusStripWithSubdivisionCount:150];

                    mobiusNode.rotation = SCNVector4Make(1, 0, 0, -M_PI_4);

                    mobiusNode.scale = SCNVector3Make(4, 2.2, 2.2);

                    mobiusNode.opacity = 0.0;

                    SCNNode *rotationNode = [SCNNode node];

                    rotationNode.position = SCNVector3Make(0, 2.7, 7);

                    [rotationNode addChildNode:mobiusNode];

                    [self.groundNode addChildNode:rotationNode];

                    CABasicAnimation *rotationAnimation = [CABasicAnimation animationWithKeyPath:@"rotation"];

                    rotationAnimation.duration = 10.0;

                    rotationAnimation.repeatCount = FLT_MAX;

                    rotationAnimation.toValue = [NSValue valueWithSCNVector4:SCNVector4Make(0, 1, 0, M_PI * 2)];

                    [rotationNode addAnimation:rotationAnimation forKey:nil];

                    [SCNTransaction begin];

                    [SCNTransaction setAnimationDuration:1.0];

                    {

                        mobiusNode.opacity = 1.0;

                    }

                    [SCNTransaction commit];

                }];

            }

            [SCNTransaction commit];

            break;

        }

    }

}

- (void)willOrderOutWithPresentionViewController:(ASCPresentationViewController *)presentationViewController {

    // Make sure the camera is back to its default location before leaving the slide

    presentationViewController.cameraNode.position = SCNVector3Make(0, 0, 0);

}

#pragma mark - Primitives

// Create a carousel of 3D primitives

- (void)presentPrimitives {

    // Create the carousel node. It will host all the primitives as child nodes.

    _carouselNode = [SCNNode node];

    _carouselNode.position = SCNVector3Make(0, 0.1, -5);

    _carouselNode.scale = SCNVector3Make(0, 0, 0); // start infinitely small

    [self.groundNode addChildNode:_carouselNode];

    // Animate the scale to achieve a "grow" effect

    [SCNTransaction begin];

    [SCNTransaction setAnimationDuration:1.0];

    {

        _carouselNode.scale = SCNVector3Make(1, 1, 1);

    }

    [SCNTransaction commit];

    // Rotate the carousel forever

    CABasicAnimation *rotationAnimation = [CABasicAnimation animationWithKeyPath:@"rotation"];

    rotationAnimation.duration = 40.0;

    rotationAnimation.repeatCount = FLT_MAX;

    rotationAnimation.toValue = [NSValue valueWithSCNVector4:SCNVector4Make(0, 1, 0, M_PI * 2)];

    [_carouselNode addAnimation:rotationAnimation forKey:nil];

    // A material shared by all the primitives

    SCNMaterial *sharedMaterial = [SCNMaterial material];

    sharedMaterial.reflective.contents = [NSImage imageNamed:@"envmap"];

    sharedMaterial.reflective.intensity = 0.2;

    sharedMaterial.doubleSided = YES;

    __block int primitiveIndex = 0;

    void (^addPrimitive)(SCNGeometry *, CGFloat) = ^(SCNGeometry *geometry, CGFloat yPos) {

        CGFloat xPos = 13.0 * sin(M_PI * 2 * primitiveIndex / 9.0);

        CGFloat zPos = 13.0 * cos(M_PI * 2 * primitiveIndex / 9.0);

        SCNNode *node = [SCNNode node];

        node.position = SCNVector3Make(xPos, yPos, zPos);

        node.geometry = geometry;

        node.geometry.firstMaterial = sharedMaterial;

        [_carouselNode addChildNode:node];

        primitiveIndex++;

        rotationAnimation.timeOffset = -primitiveIndex;

        [node addAnimation:rotationAnimation forKey:nil];

    };

    // SCNBox

    SCNBox *box = [SCNBox boxWithWidth:5.0 height:5.0 length:5.0 chamferRadius:5.0 * 0.05];

    box.widthSegmentCount = 4;

    box.heightSegmentCount = 4;

    box.lengthSegmentCount = 4;

    box.chamferSegmentCount = 4;

    addPrimitive(box, 5.0 / 2);

    // SCNPyramid

    SCNPyramid *pyramid = [SCNPyramid pyramidWithWidth:5.0 * 0.8 height:5.0 length:5.0 * 0.8];

    pyramid.widthSegmentCount = 4;

    pyramid.heightSegmentCount = 10;

    pyramid.lengthSegmentCount = 4;

    addPrimitive(pyramid, 0);

    // SCNCone

    SCNCone *cone = [SCNCone coneWithTopRadius:0 bottomRadius:5.0 / 2 height:5.0];

    cone.radialSegmentCount = 20;

    cone.heightSegmentCount = 4;

    addPrimitive(cone, 5.0 / 2);

    // SCNTube

    SCNTube *tube = [SCNTube tubeWithInnerRadius:5.0 * 0.25 outerRadius:5.0 * 0.5 height:5.0];

    tube.heightSegmentCount = 5;

    tube.radialSegmentCount = 40;

    addPrimitive(tube, 5.0 / 2);

    // SCNCapsule

    SCNCapsule *capsule = [SCNCapsule capsuleWithCapRadius:5.0 * 0.4 height:5.0 * 1.4];

    capsule.heightSegmentCount = 5;

    capsule.radialSegmentCount = 20;

    addPrimitive(capsule, 5.0 * 0.7);

    // SCNCylinder

    SCNCylinder *cylinder = [SCNCylinder cylinderWithRadius:5.0 * 0.5 height:5.0];

    cylinder.heightSegmentCount = 5;

    cylinder.radialSegmentCount = 40;

    addPrimitive(cylinder, 5.0 / 2);

    // SCNSphere

    SCNSphere *sphere = [SCNSphere sphereWithRadius:5.0 * 0.5];

    sphere.segmentCount = 20;

    addPrimitive(sphere, 5.0 / 2);

    // SCNTorus

    SCNTorus *torus = [SCNTorus torusWithRingRadius:5.0 * 0.5 pipeRadius:5.0 * 0.25];

    torus.ringSegmentCount = 40;

    torus.pipeSegmentCount = 20;

    addPrimitive(torus, 5.0 / 4);

    // SCNPlane

    SCNPlane *plane = [SCNPlane planeWithWidth:5.0 height:5.0];

    plane.widthSegmentCount = 5;

    plane.heightSegmentCount = 5;

    plane.cornerRadius = 5.0 * 0.1;

    addPrimitive(plane, 5.0 / 2);

}

#pragma mark - Custom geometry

- (SCNGeometry *)mobiusStripWithSubdivisionCount:(NSInteger)subdivisionCount {

    NSInteger hSub = subdivisionCount;

    NSInteger vSub = subdivisionCount / 2;

    NSInteger vcount = (hSub + 1) * (vSub + 1);

    NSInteger icount = (hSub * vSub) * 6;

    ASCVertex *vertices = malloc(sizeof(ASCVertex) * vcount);

    unsigned short *indices = malloc(sizeof(unsigned short) * icount);

    // Vertices

    float sStep = 2.f * M_PI / hSub;

    float tStep = 2.f / vSub;

    ASCVertex *v = vertices;

    float s = 0.f;

    float cosu, cosu2, sinu, sinu2;

    for (NSInteger i = 0; i <= hSub; ++i, s += sStep) {

        float t = -1.f;

        for (NSInteger j = 0; j <= vSub; ++j, t += tStep, ++v) {

            sinu = sin(s);

            cosu = cos(s);

            sinu2 = sin(s/2);

            cosu2 = cos(s/2);

            v->x = cosu * (1 + 0.5 * t * cosu2);

            v->y = sinu * (1 + 0.5 * t * cosu2);

            v->z = 0.5 * t * sinu2;

            v->nx = -0.125 * t * sinu  + 0.5  * cosu  * sinu2 + 0.25 * t * cosu2 * sinu2 * cosu;

            v->ny =  0.125 * t * cosu  + 0.5  * sinu2 * sinu  + 0.25 * t * cosu2 * sinu2 * sinu;

            v->nz = -0.5       * cosu2 - 0.25 * cosu2 * cosu2 * t;

            // normalize

            float invLen = 1. / sqrtf(v->nx * v->nx + v->ny * v->ny + v->nz * v->nz);

            v->nx *= invLen;

            v->ny *= invLen;

            v->nz *= invLen;

            v->s = 3.125 * s / M_PI;

            v->t = t * 0.5 + 0.5;

        }

    }

    // Indices

    unsigned short *ind = indices;

    unsigned short stripStart = 0;

    for (NSInteger i = 0; i < hSub; ++i, stripStart += (vSub + 1)) {

        for (NSInteger j = 0; j < vSub; ++j) {

            unsigned short v1   = stripStart + j;

            unsigned short v2   = stripStart + j + 1;

            unsigned short v3   = stripStart + (vSub+1) + j;

            unsigned short v4   = stripStart + (vSub+1) + j + 1;

            *ind++  = v1; *ind++    = v3; *ind++    = v2;

            *ind++  = v2; *ind++    = v3; *ind++    = v4;

        }

    }

    NSData *data = [NSData dataWithBytes:vertices length:vcount * sizeof(ASCVertex)];

    free(vertices);

    // Vertex source

    SCNGeometrySource *vertexSource = [SCNGeometrySource geometrySourceWithData:data

                                                                       semantic:SCNGeometrySourceSemanticVertex

                                                                    vectorCount:vcount

                                                                floatComponents:YES

                                                            componentsPerVector:3

                                                              bytesPerComponent:sizeof(float)

                                                                     dataOffset:0

                                                                     dataStride:sizeof(ASCVertex)];

    // Normal source

    SCNGeometrySource *normalSource = [SCNGeometrySource geometrySourceWithData:data

                                                                       semantic:SCNGeometrySourceSemanticNormal

                                                                    vectorCount:vcount

                                                                floatComponents:YES

                                                            componentsPerVector:3

                                                              bytesPerComponent:sizeof(float)

                                                                     dataOffset:offsetof(ASCVertex, nx)

                                                                     dataStride:sizeof(ASCVertex)];

    // Texture coordinates source

    SCNGeometrySource *texcoordSource = [SCNGeometrySource geometrySourceWithData:data

                                                                         semantic:SCNGeometrySourceSemanticTexcoord

                                                                      vectorCount:vcount

                                                                  floatComponents:YES

                                                              componentsPerVector:2

                                                                bytesPerComponent:sizeof(float)

                                                                       dataOffset:offsetof(ASCVertex, s)

                                                                       dataStride:sizeof(ASCVertex)];

    // Geometry element

    NSData *indicesData = [NSData dataWithBytes:indices length:icount * sizeof(unsigned short)];

    free(indices);

    SCNGeometryElement *element = [SCNGeometryElement geometryElementWithData:indicesData

                                                                primitiveType:SCNGeometryPrimitiveTypeTriangles

                                                               primitiveCount:icount/3

                                                                bytesPerIndex:sizeof(unsigned short)];

    // Create the geometry

    SCNGeometry *geometry = [SCNGeometry geometryWithSources:@[vertexSource, normalSource, texcoordSource] elements:@[element]];

    // Add textures

    geometry.firstMaterial = [SCNMaterial material];

    geometry.firstMaterial.diffuse.contents = [NSImage imageNamed:@"moebius"];

    geometry.firstMaterial.diffuse.wrapS = SCNWrapModeRepeat;

    geometry.firstMaterial.diffuse.wrapT = SCNWrapModeRepeat;

    geometry.firstMaterial.doubleSided = YES;

    geometry.firstMaterial.reflective.contents = [NSImage imageNamed:@"envmap"];

    geometry.firstMaterial.reflective.intensity = 0.3;

    return geometry;

}

#pragma mark - Stylized 3D text

- (NSAttributedString *)attributedStringWithString:(NSString *)string {

    NSFont *font = [NSFont fontWithName:@"Avenir Next Heavy" size:288];

    NSDictionary *attributes = @{ NSFontAttributeName : font };

    return [[NSMutableAttributedString alloc] initWithString:string attributes:attributes];

}

- (SCNMaterial *)textFrontMaterial {

    SCNMaterial *material = [SCNMaterial material];

    material.diffuse.contents = [NSColor blackColor];

    material.reflective.contents = [NSImage imageNamed:@"envmap"];

    material.reflective.intensity = 0.5;

    material.multiply.contents = [NSImage imageNamed:@"gradient2"];

    return material;

}

- (SCNMaterial *)textSideAndChamferMaterial {

    SCNMaterial *material = [SCNMaterial material];

    material.diffuse.contents = [NSColor whiteColor];

    material.reflective.contents = [NSImage imageNamed:@"envmap"];

    material.reflective.intensity = 0.4;

    return material;

}

- (NSBezierPath *)textChamferProfile {

    NSBezierPath *profile = [NSBezierPath bezierPath];

    [profile moveToPoint:NSMakePoint(0, 1)];

    [profile lineToPoint:NSMakePoint(1.5, 1)];

    [profile lineToPoint:NSMakePoint(1.5, 0)];

    [profile lineToPoint:NSMakePoint(1, 0)];

    return profile;

}

// Takes a string an creates a node hierarchy where each letter is an independent geometry that is animated

- (SCNNode *)splittedStylizedTextWithString:(NSString *)string {

    SCNNode *textNode = [SCNNode node];

    SCNMaterial *frontMaterial = [self textFrontMaterial];

    SCNMaterial *border = [self textSideAndChamferMaterial];

    // Current x position of the next letter to add

    CGFloat positionX = 0;

    // For each letter

    for (NSUInteger i = 0; i < [string length]; i++) {

        SCNNode *letterNode = [SCNNode node];

        NSString *letterString = [string substringWithRange:NSMakeRange(i, 1)];

        SCNText *text = [SCNText textWithString:[self attributedStringWithString:letterString] extrusionDepth:50.0];

        text.chamferRadius = 3.0;

        text.chamferProfile = [self textChamferProfile];

        // use a different material for the "heart" character

        SCNMaterial *finalFrontMaterial = frontMaterial;

        if (i == 1) {

            finalFrontMaterial = [finalFrontMaterial copy];

            finalFrontMaterial.diffuse.contents = [NSColor redColor];

            finalFrontMaterial.reflective.contents = [NSColor blackColor];

            letterNode.scale = SCNVector3Make(1.1, 1.1, 1.0);

        }

        text.materials = @[finalFrontMaterial, finalFrontMaterial, border, border, border];

        letterNode.geometry = text;

        [textNode addChildNode:letterNode];

        // measure the letter we just added to update the position

        SCNVector3 min, max;

        max = SCNVector3Make(0, 0, 0);

        min = SCNVector3Make(0, 0, 0);

        if ([letterNode getBoundingBoxMin:&min max:&max]) {

            letterNode.position = SCNVector3Make(positionX - min.x + ( max.x + min.x) * 0.5, -min.y, 0);

            positionX += max.x;

        }

        else{

            // if we have no bounding box, it is probably because of the "space" character. In that case, move to the right a little bit.

            positionX += 50.0;

        }

        // Place the pivot at the center of the letter so that the rotation animation looks good

        letterNode.pivot = CATransform3DMakeTranslation((max.x + min.x) * 0.5, 0, 0);

        // Animate the letter

        CAKeyframeAnimation *animation = [CAKeyframeAnimation animationWithKeyPath:@"rotation"];

        animation.duration = 4.0;

        animation.keyTimes = @[@0.0, @0.3, @1.0];

        animation.values = @[[NSValue valueWithSCNVector4:SCNVector4Make(0, 1, 0, 0)],

                             [NSValue valueWithSCNVector4:SCNVector4Make(0, 1, 0, M_PI * 2)],

                             [NSValue valueWithSCNVector4:SCNVector4Make(0, 1, 0, M_PI * 2)]];

        CAMediaTimingFunction *timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];

        animation.timingFunctions = @[timingFunction, timingFunction, timingFunction];

        animation.repeatCount = FLT_MAX;

        animation.beginTime = CACurrentMediaTime() + 1.0 + i * 0.2; // desynchronize animations

        [letterNode addAnimation:animation forKey:nil];

    }

    return textNode;

}

- (void)presentTextNode {

    _textNode = [self splittedStylizedTextWithString:@"I❤︎SceneKit"];

    _textNode.scale = SCNVector3Make(0.017, 0.0187, 0.017);

    _textNode.opacity = 0.0;

    _textNode.position = SCNVector3Make(-14, 0, 0);

    [self.groundNode addChildNode:_textNode];

}

#pragma mark - SCNShape

- (NSArray *)floorMaterials {

    SCNMaterial *lightGrayMaterial = [SCNMaterial material];

    lightGrayMaterial.diffuse.contents = [NSImage imageNamed:@"shapeMap"];

    lightGrayMaterial.locksAmbientWithDiffuse = YES;

    SCNMaterial *darkGrayMaterial = [SCNMaterial material];

    darkGrayMaterial.diffuse.contents = [NSColor colorWithDeviceWhite:0.8 alpha:1.0];

    darkGrayMaterial.locksAmbientWithDiffuse = YES;

    return @[lightGrayMaterial, lightGrayMaterial, darkGrayMaterial];

}

- (SCNMaterial *)wallMaterial {

    SCNMaterial *material = [SCNMaterial material];

    material.diffuse.contents = [NSColor colorWithDeviceRed:0.11 green:0.70 blue:0.88 alpha:1.0];

    return material;

}

- (SCNNode *)level2Node {

    SCNNode *node = [SCNNode node];

    SCNNode *roomsNode = [SCNNode node];

    SCNShape *floor = [SCNShape shapeWithPath:[self mosconeFloorBezierPath] extrusionDepth:10.0];

    SCNShape *walls = [SCNShape shapeWithPath:[self mosconeRoomsBezierPath] extrusionDepth:20.0];

    node.geometry = floor;

    node.geometry.materials = [self floorMaterials];

    roomsNode.geometry = walls;

    roomsNode.geometry.firstMaterial = [self wallMaterial];

    roomsNode.pivot = CATransform3DMakeTranslation(0, 0, -0.5 * 20.0);

    roomsNode.opacity = 1.0;

    [node addChildNode:roomsNode];

    return node;

}

- (SCNNode *)level2OutlineNode {

    SCNShape *floor = [SCNShape shapeWithPath:[self mosconeFloorBezierPath] extrusionDepth:10.0 * 1.01];

    floor.chamferRadius = 10.0;

    floor.chamferProfile = [self outlineChamferProfilePath];

    floor.chamferMode = SCNChamferModeFront;

    // Use a transparent material for everything except the chamfer. That way only the outline of the model will be visible.

    SCNMaterial *outlineMaterial = [SCNMaterial material];

    outlineMaterial.ambient.contents = outlineMaterial.diffuse.contents = outlineMaterial.specular.contents = [NSColor blackColor];

    outlineMaterial.emission.contents = [NSColor whiteColor];

    SCNMaterial *tranparentMaterial = [SCNMaterial material];

    tranparentMaterial.transparency = 0.0;

    SCNNode *node = [SCNNode node];

    node.geometry = floor;

    node.geometry.materials = @[tranparentMaterial, tranparentMaterial, tranparentMaterial, outlineMaterial, outlineMaterial];

    return node;

}

- (NSBezierPath *)mosconeFloorBezierPath {

    NSBezierPath *path = [NSBezierPath bezierPath];

    [path moveToPoint:NSMakePoint(69,0)];

    [path lineToPoint:NSMakePoint(69,-107)];

    [path lineToPoint:NSMakePoint(0,-107)];

    [path lineToPoint:NSMakePoint(0,-480)];

    [path lineToPoint:NSMakePoint(104,-480)];

    [path lineToPoint:NSMakePoint(104,-500)];

    [path lineToPoint:NSMakePoint(184,-480)];

    [path lineToPoint:NSMakePoint(226,-480)];

    [path lineToPoint:NSMakePoint(226,-500)];

    [path lineToPoint:NSMakePoint(306,-480)];

    [path lineToPoint:NSMakePoint(348,-480)];

    [path lineToPoint:NSMakePoint(348,-500)];

    [path lineToPoint:NSMakePoint(428,-480)];

    [path lineToPoint:NSMakePoint(470,-480)];

    [path lineToPoint:NSMakePoint(470,-500)];

    [path lineToPoint:NSMakePoint(550,-480)];

    [path lineToPoint:NSMakePoint(592,-480)];

    [path lineToPoint:NSMakePoint(592,-505)];

    [path lineToPoint:NSMakePoint(752.548776,-460.046343)];

    [path curveToPoint:NSMakePoint(767.32333,-440.999893) controlPoint1:NSMakePoint(760.529967,-457.811609) controlPoint2:NSMakePoint(767.218912,-449.292876)];

    [path curveToPoint:NSMakePoint(700,0) controlPoint1:NSMakePoint(767.32333,-440.999893) controlPoint2:NSMakePoint(776,-291)];

    [path lineToPoint:NSMakePoint(69,0)];

    [path moveToPoint:NSMakePoint(676,-238)];

    [path lineToPoint:NSMakePoint(676,-348)];

    [path lineToPoint:NSMakePoint(710,-348)];

    [path lineToPoint:NSMakePoint(710,-238)];

    [path lineToPoint:NSMakePoint(676,-238)];

    [path lineToPoint:NSMakePoint(676,-238)];

    return path;

}

- (NSBezierPath *)mosconeRoomsBezierPath {

    NSBezierPath *path = [NSBezierPath bezierPath];

    [path moveToPoint:NSMakePoint(553,-387)];

    [path lineToPoint:NSMakePoint(426,-387)];

    [path lineToPoint:NSMakePoint(426,-383)];

    [path lineToPoint:NSMakePoint(549,-383)];

    [path lineToPoint:NSMakePoint(549,-194)];

    [path lineToPoint:NSMakePoint(357,-194)];

    [path lineToPoint:NSMakePoint(357,-383)];

    [path lineToPoint:NSMakePoint(411,-383)];

    [path lineToPoint:NSMakePoint(411,-387)];

    [path lineToPoint:NSMakePoint(255,-387)];

    [path lineToPoint:NSMakePoint(255,-383)];

    [path lineToPoint:NSMakePoint(353,-383)];

    [path lineToPoint:NSMakePoint(353,-194)];

    [path lineToPoint:NSMakePoint(175,-194)];

    [path lineToPoint:NSMakePoint(175,-383)];

    [path lineToPoint:NSMakePoint(240,-383)];

    [path lineToPoint:NSMakePoint(240,-387)];

    [path lineToPoint:NSMakePoint(171,-387)];

    [path lineToPoint:NSMakePoint(171,-190)];

    [path lineToPoint:NSMakePoint(553,-190)];

    [path lineToPoint:NSMakePoint(553,-387)];

    [path moveToPoint:NSMakePoint(474,-141)];

    [path lineToPoint:NSMakePoint(474,-14)];

    [path lineToPoint:NSMakePoint(294,-14)];

    [path lineToPoint:NSMakePoint(294,-141)];

    [path lineToPoint:NSMakePoint(407,-141)];

    [path lineToPoint:NSMakePoint(407,-145)];

    [path lineToPoint:NSMakePoint(172,-145)];

    [path lineToPoint:NSMakePoint(172,-141)];

    [path lineToPoint:NSMakePoint(290,-141)];

    [path lineToPoint:NSMakePoint(290,-14)];

    [path lineToPoint:NSMakePoint(124,-14)];

    [path lineToPoint:NSMakePoint(124,-141)];

    [path lineToPoint:NSMakePoint(157,-141)];

    [path lineToPoint:NSMakePoint(157,-145)];

    [path lineToPoint:NSMakePoint(120,-145)];

    [path lineToPoint:NSMakePoint(120,-10)];

    [path lineToPoint:NSMakePoint(478,-10)];

    [path lineToPoint:NSMakePoint(478,-145)];

    [path lineToPoint:NSMakePoint(422,-145)];

    [path lineToPoint:NSMakePoint(422,-141)];

    [path lineToPoint:NSMakePoint(474,-141)];

    return path;

}

- (NSBezierPath *)outlineChamferProfilePath {

    NSBezierPath *path = [NSBezierPath bezierPath];

    [path moveToPoint:NSMakePoint(1, 1)];

    [path lineToPoint:NSMakePoint(1, 0)];

    return path;

}

@end