Initial commit

.gitignore

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+# Xcode
+
+build/
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+xcuserdata
+*.xccheckout
+*.moved-aside
+DerivedData
+*.hmap
+*.ipa
+*.xcuserstate

LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2015 David Roman
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

Popsicle.podspec

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+Pod::Spec.new do |s|
+  s.name                  = "Popsicle"
+  s.version               = "1.0.0"
+  s.summary               = "Simple, extensible value interpolation framework"
+  s.homepage              = "https://github.com/Dromaguirre/Popsicle"
+  s.author                = { "David Roman" => "[email protected]" }
+  s.license               = { :type => 'MIT', :file => 'LICENSE' }
+
+  s.platform              = :ios, '8.0'
+  s.ios.deployment_target = '8.0'
+
+  s.source                = { :git => "https://github.com/Dromaguirre/Popsicle.git", :tag => s.version.to_s }
+  s.source_files          = 'Popsicle/*.{h,m}'
+  s.frameworks            = 'Foundation', 'UIKit'
+  s.requires_arc          = true
+end

Popsicle.xcodeproj/xcshareddata/xcschemes/Popsicle.xcscheme

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+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0630"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "75CE051E1ACA133B008B893D"
+               BuildableName = "Popsicle.framework"
+               BlueprintName = "Popsicle"
+               ReferencedContainer = "container:Popsicle.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      buildConfiguration = "Debug">
+      <Testables>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "75CE051E1ACA133B008B893D"
+            BuildableName = "Popsicle.framework"
+            BlueprintName = "Popsicle"
+            ReferencedContainer = "container:Popsicle.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+   </TestAction>
+   <LaunchAction
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      buildConfiguration = "Debug"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      allowLocationSimulation = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "75CE051E1ACA133B008B893D"
+            BuildableName = "Popsicle.framework"
+            BlueprintName = "Popsicle"
+            ReferencedContainer = "container:Popsicle.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      buildConfiguration = "Release"
+      debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "75CE051E1ACA133B008B893D"
+            BuildableName = "Popsicle.framework"
+            BlueprintName = "Popsicle"
+            ReferencedContainer = "container:Popsicle.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

Popsicle/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>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>me.davidroman.$(PRODUCT_NAME:rfc1034identifier)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>FMWK</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>$(CURRENT_PROJECT_VERSION)</string>
+	<key>NSPrincipalClass</key>
+	<string></string>
+</dict>
+</plist>

Popsicle/PSAffineTransformInterpolation.h

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+//
+//  PSAffineTransformInterpolation.h
+//  Popsicle
+//
+//  Created by David Román Aguirre on 3/11/14.
+//  Copyright (c) 2014 David Roman. All rights reserved.
+//
+
+#import "PSInterpolation.h"
+#import <UIKit/UIKit.h>
+
+#define CGAffineTransformCreate(tx, ty, sx, sy, deg) CGAffineTransformRotate(CGAffineTransformConcat(CGAffineTransformMakeTranslation(tx, ty), CGAffineTransformMakeScale(sx, sy)), (deg*M_PI_2)/180)
+
+@interface PSAffineTransformInterpolation : PSInterpolation
+
++ (instancetype)interpolationWithStartTime:(float)startTime endTime:(float)endTime fromValue:(CGAffineTransform)fromValue toValue:(CGAffineTransform)toValue;
+
+@end

Popsicle/PSAffineTransformInterpolation.m

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+//
+//  PSAffineTransformInterpolation.m
+//  Popsicle
+//
+//  Created by David Román Aguirre on 3/11/14.
+//  Copyright (c) 2014 David Roman. All rights reserved.
+//
+
+#import "PSAffineTransformInterpolation.h"
+
+#import "PSInterpolation+Subclass.h"
+
+#define CGAffineTransformGetXTranslation(t) t.tx
+#define CGAffineTransformGetYTranslation(t) t.ty
+#define CGAffineTransformGetXScale(t) sqrt(t.a * t.a + t.c * t.c)
+#define CGAffineTransformGetYScale(t) sqrt(t.b * t.b + t.d * t.d)
+#define CGAffineTransformGetRotation(t) atan2f(t.b, t.a)
+
+@implementation PSAffineTransformInterpolation
+
++ (instancetype)interpolationWithStartTime:(float)startTime endTime:(float)endTime fromValue:(CGAffineTransform)fromValue toValue:(CGAffineTransform)toValue {
+	return [super interpolationWithStartTime:startTime endTime:endTime fromValue:[NSValue valueWithCGAffineTransform:fromValue] toValue:[NSValue valueWithCGAffineTransform:toValue]];
+}
+
+- (id)valueForTimeFraction:(float)timeFraction {
+	CGAffineTransform fromValue = [self.fromValue CGAffineTransformValue];
+	CGAffineTransform toValue = [self.toValue CGAffineTransformValue];
+
+	CGFloat xTranslationInterpolation = Interpolation(fromValue.tx, toValue.tx, timeFraction);
+	CGFloat yTranslationInterpolation = Interpolation(fromValue.ty, toValue.ty, timeFraction);
+	CGAffineTransform translationValue = CGAffineTransformMakeTranslation(xTranslationInterpolation, yTranslationInterpolation);
+
+	CGFloat xScaleInterpolation = Interpolation(CGAffineTransformGetXScale(fromValue), CGAffineTransformGetXScale(toValue), timeFraction);
+	CGFloat yScaleInterpolation = Interpolation(CGAffineTransformGetYScale(fromValue), CGAffineTransformGetYScale(toValue), timeFraction);
+	CGAffineTransform scaleValue = CGAffineTransformMakeScale(xScaleInterpolation, yScaleInterpolation);
+
+	CGFloat rotationInterpolation = Interpolation(CGAffineTransformGetRotation(fromValue), CGAffineTransformGetRotation(toValue), timeFraction);
+	CGAffineTransform rotationValue = CGAffineTransformMakeRotation(rotationInterpolation);
+
+	CGAffineTransform value = CGAffineTransformConcat(CGAffineTransformConcat(translationValue, scaleValue), rotationValue);
+
+	return [NSValue valueWithCGAffineTransform:value];
+}
+
+@end

Popsicle/PSColorInterpolation.h

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+//
+//  PSColorInterpolation.h
+//  Popsicle
+//
+//  Created by David Román Aguirre on 3/11/14.
+//  Copyright (c) 2014 David Roman. All rights reserved.
+//
+
+#import "PSInterpolation.h"
+#import <UIKit/UIKit.h>
+
+@interface PSColorInterpolation : PSInterpolation
+
++ (instancetype)interpolationWithStartTime:(float)startTime endTime:(float)endTime fromValue:(UIColor *)fromValue toValue:(UIColor *)toValue;
+
+@end

Popsicle/PSColorInterpolation.m

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+//
+//  PSColorInterpolation.m
+//  Popsicle
+//
+//  Created by David Román Aguirre on 3/11/14.
+//  Copyright (c) 2014 David Roman. All rights reserved.
+//
+
+#import "PSColorInterpolation.h"
+
+#import "PSInterpolation+Subclass.h"
+
+@implementation PSColorInterpolation
+
++ (instancetype)interpolationWithStartTime:(float)startTime endTime:(float)endTime fromValue:(UIColor *)fromValue toValue:(UIColor *)toValue {
+	return [super interpolationWithStartTime:startTime endTime:endTime fromValue:fromValue toValue:toValue];
+}
+
+- (id)valueForTimeFraction:(float)timeFraction {
+	UIColor *fromValue = self.fromValue;
+	UIColor *toValue = self.toValue;
+
+	CGFloat fromRed;
+	CGFloat fromGreen;
+	CGFloat fromBlue;
+	CGFloat fromAlpha;
+
+	CGFloat toRed;
+	CGFloat toGreen;
+	CGFloat toBlue;
+	CGFloat toAlpha;
+
+	[fromValue getRed:&fromRed green:&fromGreen blue:&fromBlue alpha:&fromAlpha];
+	[toValue getRed:&toRed green:&toGreen blue:&toBlue alpha:&toAlpha];
+
+	CGFloat redInterpolation = Interpolation(fromRed, toRed, timeFraction);
+	CGFloat greenInterpolation = Interpolation(fromGreen, toGreen, timeFraction);
+	CGFloat blueInterpolation = Interpolation(fromBlue, toBlue, timeFraction);
+	CGFloat alphaInterpolation = Interpolation(fromAlpha, toAlpha, timeFraction);
+
+	UIColor *value = [UIColor colorWithRed:redInterpolation green:greenInterpolation blue:blueInterpolation alpha:alphaInterpolation];
+
+	return value;
+}
+
+@end

Popsicle/PSFloatInterpolation.h

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+//
+//  PSFloatInterpolation.h
+//  Popsicle
+//
+//  Created by David Román Aguirre on 1/11/14.
+//  Copyright (c) 2014 David Roman. All rights reserved.
+//
+
+#import "PSInterpolation.h"
+
+@interface PSFloatInterpolation : PSInterpolation
+
++ (instancetype)interpolationWithStartTime:(float)startTime endTime:(float)endTime fromValue:(float)fromValue toValue:(float)toValue;
+
+@end

Popsicle/PSFloatInterpolation.m

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+//
+//  PSFloatInterpolation.m
+//  Popsicle
+//
+//  Created by David Román Aguirre on 1/11/14.
+//  Copyright (c) 2014 David Roman. All rights reserved.
+//
+
+#import "PSFloatInterpolation.h"
+
+#import "PSInterpolation+Subclass.h"
+
+@implementation PSFloatInterpolation
+
++ (instancetype)interpolationWithStartTime:(float)startTime endTime:(float)endTime fromValue:(float)fromValue toValue:(float)toValue {
+	return [super interpolationWithStartTime:startTime endTime:endTime fromValue:@(fromValue) toValue:@(toValue)];
+}
+
+- (id)valueForTimeFraction:(float)timeFraction {
+	float fromValue = [self.fromValue floatValue];
+	float toValue = [self.toValue floatValue];
+
+	float value = Interpolation(fromValue, toValue, timeFraction);
+
+	return @(value);
+}
+
+@end

Popsicle/PSIntegerInterpolation.h

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+//
+//  PSIntegerInterpolation.h
+//  Popsicle
+//
+//  Created by David Román Aguirre on 27/10/14.
+//  Copyright (c) 2014 David Roman. All rights reserved.
+//
+
+#import "PSInterpolation.h"
+
+@interface PSIntegerInterpolation : PSInterpolation
+
++ (instancetype)interpolationWithStartTime:(float)startTime endTime:(float)endTime fromValue:(NSInteger)fromValue toValue:(NSInteger)toValue;
+
+@end

Popsicle/PSIntegerInterpolation.m

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+//
+//  PSIntegerInterpolation.m
+//  Popsicle
+//
+//  Created by David Román Aguirre on 27/10/14.
+//  Copyright (c) 2014 David Roman. All rights reserved.
+//
+
+#import "PSIntegerInterpolation.h"
+
+#import "PSInterpolation+Subclass.h"
+
+@implementation PSIntegerInterpolation
+
++ (instancetype)interpolationWithStartTime:(float)startTime endTime:(float)endTime fromValue:(NSInteger)fromValue toValue:(NSInteger)toValue {
+	return [super interpolationWithStartTime:startTime endTime:endTime fromValue:@(fromValue) toValue:@(toValue)];
+}
+
+- (id)valueForTimeFraction:(float)timeFraction {
+	NSInteger fromValue = [self.fromValue integerValue];
+	NSInteger toValue = [self.toValue integerValue];
+
+	NSInteger value = (NSInteger)floor(Interpolation(fromValue, toValue, timeFraction));
+
+	return @(value);
+}
+
+@end