initial SKLine app

SKLine/SKLine/AppDelegate.h

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+//
+//  AppDelegate.h
+//  SKLine
+//
+//  Created by Justin on 11/4/13.
+//  Copyright (c) 2013 Saturnboy. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface AppDelegate : UIResponder <UIApplicationDelegate>
+
+@property (strong, nonatomic) UIWindow *window;
+
+@end

SKLine/SKLine/AppDelegate.m

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+//
+//  AppDelegate.m
+//  SKLine
+//
+//  Created by Justin on 11/4/13.
+//  Copyright (c) 2013 Saturnboy. All rights reserved.
+//
+
+#import "AppDelegate.h"
+
+@implementation AppDelegate
+
+- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
+{
+    // Override point for customization after application launch.
+    return YES;
+}
+
+- (void)applicationWillResignActive:(UIApplication *)application
+{
+    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+    // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
+}
+
+- (void)applicationDidEnterBackground:(UIApplication *)application
+{
+    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later. 
+    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+}
+
+- (void)applicationWillEnterForeground:(UIApplication *)application
+{
+    // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
+}
+
+- (void)applicationDidBecomeActive:(UIApplication *)application
+{
+    // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+}
+
+- (void)applicationWillTerminate:(UIApplication *)application
+{
+    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+}
+
+@end

SKLine/SKLine/Base.lproj/Main_iPad.storyboard

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+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="4451" systemVersion="13A461" targetRuntime="iOS.CocoaTouch.iPad" propertyAccessControl="none" useAutolayout="YES" initialViewController="BV1-FR-VrT">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="3676"/>
+    </dependencies>
+    <scenes>
+        <!--class Prefix:identifier View Controller-->
+        <scene sceneID="tXr-a1-R10">
+            <objects>
+                <viewController id="BV1-FR-VrT" customClass="ViewController" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="3se-qz-xqx" customClass="SKView">
+                        <rect key="frame" x="0.0" y="0.0" width="768" height="1024"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="SZV-WD-TEh" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+    <simulatedMetricsContainer key="defaultSimulatedMetrics">
+        <nil key="statusBar"/>
+        <simulatedOrientationMetrics key="orientation"/>
+        <simulatedScreenMetrics key="destination"/>
+    </simulatedMetricsContainer>
+</document>

SKLine/SKLine/Base.lproj/Main_iPhone.storyboard

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+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="4451" systemVersion="13A461" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" initialViewController="LVB-YS-i5n">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="3676"/>
+    </dependencies>
+    <scenes>
+        <!--class Prefix:identifier View Controller-->
+        <scene sceneID="CtS-rA-C9T">
+            <objects>
+                <viewController id="LVB-YS-i5n" customClass="ViewController" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="bdc-N1-crn" customClass="SKView">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="btX-cZ-eVz" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+    <simulatedMetricsContainer key="defaultSimulatedMetrics">
+        <nil key="statusBar"/>
+        <simulatedOrientationMetrics key="orientation"/>
+        <simulatedScreenMetrics key="destination" type="retina4"/>
+    </simulatedMetricsContainer>
+</document>

SKLine/SKLine/Images.xcassets/AppIcon.appiconset/Contents.json

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+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

SKLine/SKLine/Images.xcassets/LaunchImage.launchimage/Contents.json

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+{
+  "images" : [
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "subtype" : "retina4",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

SKLine/SKLine/MyScene.h

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+//
+//  MyScene.h
+//  SKLine
+//
+//  Created by Justin on 11/4/13.
+//  Copyright (c) 2013 Saturnboy. All rights reserved.
+//
+
+#import <SpriteKit/SpriteKit.h>
+
+@interface MyScene : SKScene
+
+@end

SKLine/SKLine/MyScene.m

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+//
+//  MyScene.m
+//  SKLine
+//
+//  Created by Justin on 11/4/13.
+//  Copyright (c) 2013 Saturnboy. All rights reserved.
+//
+
+#import "MyScene.h"
+
+#define MIN_DIST_SQ 10.0f
+
+@interface MyScene ()
+@property (nonatomic) CGPoint prev;
+@property (nonatomic) SKShapeNode *line;
+@end
+
+static inline float DIST_SQ(const CGPoint a, const CGPoint b) {
+    return ((a.x-b.x) * (a.x-b.x) + (a.y-b.y) * (a.y-b.y));
+}
+
+@implementation MyScene
+
+-(id)initWithSize:(CGSize)size {    
+    if (self = [super initWithSize:size]) {
+        NSLog(@"MyScene: size=%.1fx%.1f", size.width, size.height);
+
+        self.backgroundColor = [SKColor colorWithRed:1.0 green:1.0 blue:1.0 alpha:1.0];
+
+        SKLabelNode *lbl = [SKLabelNode labelNodeWithFontNamed:@"Helvetica-Light"];
+        lbl.text = @"draw...";
+        lbl.fontSize = 36;
+        lbl.fontColor = [UIColor lightGrayColor];
+        lbl.position = CGPointMake(CGRectGetMidX(self.frame), CGRectGetMidY(self.frame));
+
+        [self addChild:lbl];
+    }
+    return self;
+}
+
+-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
+    UITouch *touch = [touches anyObject];
+    CGPoint loc = [touch locationInNode:self];
+    _prev = loc;
+
+    CGMutablePathRef path = CGPathCreateMutable();
+    CGPathMoveToPoint(path, NULL, loc.x, loc.y);
+
+    _line = [SKShapeNode node];
+    _line.strokeColor = [SKColor redColor];
+    _line.fillColor = [SKColor clearColor];
+    _line.path = path;
+    CGPathRelease(path);
+    [self addChild:_line];
+}
+
+-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
+    UITouch *touch = [touches anyObject];
+    CGPoint loc = [touch locationInNode:self];
+
+    if (DIST_SQ(loc, _prev) > MIN_DIST_SQ) {
+        _prev = loc;
+
+        CGMutablePathRef path = CGPathCreateMutableCopy(_line.path);
+        CGPathAddLineToPoint(path, NULL, loc.x, loc.y);
+
+        _line.path = path;
+        CGPathRelease(path);
+    }
+}
+
+-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
+    SKAction *fade = [SKAction fadeOutWithDuration:1.5];
+    SKAction *remove = [SKAction removeFromParent];
+    [_line runAction:[SKAction sequence:@[fade, remove]]];
+}
+
+@end

SKLine/SKLine/SKLine-Info.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleDisplayName</key>
+	<string>${PRODUCT_NAME}</string>
+	<key>CFBundleExecutable</key>
+	<string>${EXECUTABLE_NAME}</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.saturnboy.learning.${PRODUCT_NAME:rfc1034identifier}</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>${PRODUCT_NAME}</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1.0</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIMainStoryboardFile</key>
+	<string>Main_iPhone</string>
+	<key>UIMainStoryboardFile~ipad</key>
+	<string>Main_iPad</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UIStatusBarHidden</key>
+	<true/>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UIViewControllerBasedStatusBarAppearance</key>
+	<false/>
+</dict>
+</plist>

SKLine/SKLine/SKLine-Prefix.pch

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+//
+//  Prefix header
+//
+//  The contents of this file are implicitly included at the beginning of every source file.
+//
+
+#import <Availability.h>
+
+#ifndef __IPHONE_5_0
+#warning "This project uses features only available in iOS SDK 5.0 and later."
+#endif
+
+#ifdef __OBJC__
+    #import <UIKit/UIKit.h>
+    #import <Foundation/Foundation.h>
+#endif