added files via upload

Tweaks/FLEX/ViewHierarchy/SnapshotExplorer/Scene/SceneKit+Snapshot.h

@@ -0,0 +1,62 @@
+//
+//  SceneKit+Snapshot.h
+//  FLEX
+//
+//  Created by Tanner Bennett on 1/8/20.
+//
+
+#import <SceneKit/SceneKit.h>
+#import "FHSViewSnapshot.h"
+@class FHSSnapshotNodes;
+
+extern CGFloat const kFHSSmallZOffset;
+
+#pragma mark SCNNode
+@interface SCNNode (Snapshot)
+
+/// @return the nearest ancestor snapshot node starting at this node
+@property (nonatomic, readonly) SCNNode *nearestAncestorSnapshot;
+
+/// @return a node that renders a highlight overlay over a specified snapshot
++ (instancetype)highlight:(FHSViewSnapshot *)view color:(UIColor *)color;
+/// @return a node that renders a snapshot image
++ (instancetype)snapshot:(FHSViewSnapshot *)view;
+/// @return a node that draws a line between two vertices
++ (instancetype)lineFrom:(SCNVector3)v1 to:(SCNVector3)v2 color:(UIColor *)lineColor;
+
+/// @return a node that can be used to render a colored border around the specified node
+- (instancetype)borderWithColor:(UIColor *)color;
+/// @return a node that renders a header above a snapshot node
+///         using the title text from the view, if specified
++ (instancetype)header:(FHSViewSnapshot *)view;
+
+/// @return a SceneKit node that recursively renders a hierarchy
+///         of UI elements starting at the specified snapshot
++ (instancetype)snapshot:(FHSViewSnapshot *)view
+                  parent:(FHSViewSnapshot *)parentView
+              parentNode:(SCNNode *)parentNode
+                    root:(SCNNode *)rootNode
+                   depth:(NSInteger *)depthOut
+                nodesMap:(NSMutableDictionary<NSString *, FHSSnapshotNodes *> *)nodesMap
+             hideHeaders:(BOOL)hideHeaders;
+
+@end
+
+
+#pragma mark SCNShape
+@interface SCNShape (Snapshot)
+/// @return a shape with the given path, 0 extrusion depth, and a double-sided
+///         material with the given diffuse contents inserted at index 0
++ (instancetype)shapeWithPath:(UIBezierPath *)path materialDiffuse:(id)contents;
+/// @return a shape that is used to render the background of the snapshot header
++ (instancetype)nameHeader:(UIColor *)color frame:(CGRect)frame corners:(CGFloat)cornerRadius;
+
+@end
+
+
+#pragma mark SCNText
+@interface SCNText (Snapshot)
+/// @return text geometry used to render text inside the snapshot header
++ (instancetype)labelGeometry:(NSString *)text font:(UIFont *)font;
+
+@end