A cocos2d-objc method to save localized screenshot images

LocalizedScreenshotTest.m

/**
*   This assumes the test is being run on an iPad Pro (or simulator) so the largest screenshot
*   doesn't get clipped. Base images with no text should be provided in the test resources with the -ipadhd extension.
*   The output will be images in localized subfolders within the Documents folder of the simulator's sandbox.
*
*   Run this method in any CCScene or full screen CCNode
*/
- (void)screenGrabAppStoreImages
{
    // Our blank images are named "3.5_00-ipadhd.png", "3.5_01-ipadhd.png", "4_00-ipadhd.png", etc.
    NSArray *deviceNames = @[@"3.5", @"4", @"4.7", @"5.5", @"ipad", @"ipadhd", @"iPadPro"];
    
    // These are static positions/sizes for our labels for each device name above. Yours will be different!
    NSArray *widths = @[@200, @200, @240, @300, @260, @500, @500];
    NSArray *heights = @[@32, @32, @40, @44, @44, @88, @88];
    NSArray *fontSizes = @[@14, @14, @17, @32, @18, @36, @36];
    NSArray *topPadding = @[@20, @20, @20, @40, @20, @40, @40];

    [deviceNames enumerateObjectsUsingBlock:^(NSString *deviceName, NSUInteger idx, BOOL * _Nonnull stop) {
        CCSprite *baseImage = [CCSprite spriteWithImageNamed:[NSString stringWithFormat:@"%@_01.png", deviceName]];
        CCRenderTexture *renderTexture = [CCRenderTexture renderTextureWithWidth:baseImage.width
                                                                          height:baseImage.height];
        
        for (int i = 0; i < 5; i++)
        {
            NSString *identifier = [NSString stringWithFormat:@"%@_%02d", deviceName, i];
            CCSprite *image = [CCSprite spriteWithImageNamed:[NSString stringWithFormat:@"%@.png", identifier]];
            image.anchorPoint = CGPointZero;
            [self addChild:image];
            
            // Localizable.strings should contain "Caption_1", "Caption_2", etc keys for each screenshot caption
            NSString *captionKey = [NSString stringWithFormat:@"Caption_%d", i + 1];
            // Use RSULocalizationHelper from https://github.com/RareSloth/RSUtilities
            NSString *captionText = RSULocalizedStringWithDefault(captionKey, @"");
            // labelSized() is just a method we use for quickly instantiating a label with a given string, size, and color
            CCLabelTTF *label = labelSized(captionText, 0, FURTextColorPurple);
            label.fontSize = [fontSizes[idx] floatValue];
            label.dimensions = CGSizeMake([widths[idx] floatValue], [heights[idx] floatValue]);
            label.adjustsFontSizeToFit = YES;
            label.verticalAlignment = CCVerticalTextAlignmentCenter;
            label.horizontalAlignment = CCTextAlignmentCenter;
            label.anchorPoint = ccp(0.5f, 1.f);
            label.position = ccp(image.contentSize.width / 2.f, image.contentSize.height - [topPadding[idx] floatValue]);
            
            [image addChild:label];
            
            [renderTexture beginWithClear:0 g:0 b:0 a:0];
            [self visit];
            [renderTexture end];

            NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
            NSString *currentLanguage = _currentLanguage;
            /** This will depend on how you have your Localizable.strings set up.
              * We had a pt.lproj folder, but the locale on the app store is pt-BR.
              * Same with nl.lproj and de.lproj */
            if ([currentLanguage isEqualToString:@"pt"])
            {
                currentLanguage = @"pt-BR";
            }
            else if ([currentLanguage isEqualToString:@"nl"])
            {
                currentLanguage = @"nl-NL";
            }
            else if ([currentLanguage isEqualToString:@"de"])
            {
                currentLanguage = @"de-DE";
            }
            NSString *filename = [NSString stringWithFormat:@"%@_%@.png", currentLanguage, identifier];
            NSString *filePath = [[paths firstObject] stringByAppendingPathComponent:filename];
            [UIImagePNGRepresentation([renderTexture getUIImage]) writeToFile:filePath atomically:YES];

            [self removeChild:image];
        }
    }];
}