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Monthly Archives: January 2018

The code used in Unity3d Gaming Subtitle Options Web App.

Screenshot ofWebGL app showing what the minimum subtitle options games should have.

Below is all the code it took to create the subtitle options in the Subtitle Options WebGl App in the previous post, Minimum Gaming Subtitle Options.

Note: this does not include the code for free version of uGUI Color Picker from the Unity Asset Store I used in the options menu. It’s not mine, so I’m not posting it.

But it should illustrate just how easy it was to create all the options shown in the Subtitle Options Web Gl App in the Minimum Gaming Subtitle Options post.

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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using TMPro;
using UnityEngine.UI;
using uCPf;
using System.Text.RegularExpressions;
using System.Linq;

public class ResizeCaptions : MonoBehaviour
{
  public Image captionBackground;

  public TextMeshProUGUI fontBox, shadowbox;

  public Slider fontSizeSlider, fontLineSpacingSlider, fontOpacitySlider, bgOpacitySlider;

  public Button optionButton;

  public ColorPicker font_Color_Picker, background_Color_Picker;

  public Toggle outlineToggle, shadowToggle;

  public Dropdown fontList;

  public float sidePadding = 3;  

  public TMP_FontAsset[] plainFonts, outlineFonts, outlineshadowFonts, shadowFonts;

  public float[] charSize = {10f,12.5f,10.5f};

  public float[] lineSize = {36f,62f,86f};

  [Range(1.5f,4.5f)]
  public float shadowDistance = 1.5f;

  public GameObject optionMenu;



  private int font_No;

  private GameObject shadowFontBox;

  private string[] captionSplit;
  private string myCaption;

  private RectTransform imageboxRT, shadowBoxRT;

  private Color newFontColor = new Color(1,1,1), newBackgroundColor = new Color(0,0,0), newFontColorOpacity, newBackgroundColorOpacity;

  private bool fontUpdateRequired = false, backgroudUpdateRequired = false, hasOutline = true, hasShadow = false;

  private Vector2 shadowOffset;

  private float minFontSize = 20.15f, maxCharacters, scaleUp, currentFontSize, newWidth, newHeight, fontOpacity;
  private float shadowOffsetX = 0f, shadowOffsetY = -333.1f, fontscale = 72f;

  private float[] fontsizeMinMax = { 72f, 58f, 68f };


  // Use this for initialization
  void Start ()
  {
    shadowFontBox = shadowbox.gameObject;     //sets gameobject so it can be turned on or off.

    shadowBoxRT = shadowbox.rectTransform;      //used to position dropshadow offset which is affected by font size.
    imageboxRT = captionBackground.rectTransform; //used to change size of subtitle background

    font_Color_Picker.color = newFontColor;           //sets color for color font color picker

    background_Color_Picker.color = newBackgroundColor;     //sets color for background font color

    UpdateColorPickers();                   //Late Update updates colors set on Color Pickers

    outlineToggle.onValueChanged.AddListener(Change_Outline); //Executes code when toggle is changed
    shadowToggle.onValueChanged.AddListener(Change_Shadow);   //Executes code when toggle is changed
    fontList.onValueChanged.AddListener(Change_Font);     //Executes code when dropdown is changed
    optionButton.onClick.AddListener(Check_Options);      //Executes code when button is pressed

    Change_Outline(hasOutline);                 //Turns Outline font on
    Change_Shadow(hasShadow);                 //Turns Drop Shadow off

    scaleUp = currentFontSize/minFontSize;            //gets scale of font to set background box size and drop shadow offset
    resizeBackgroundImage();                  //sets up background box size
  }


  //turns options menu on and off.
  private void Check_Options ()
  {
    if(optionMenu.activeInHierarchy == false) { optionMenu.SetActive(true); }
    else { optionMenu.SetActive(false); }
  }


  //changes font when new one is selected in Dropdown menu
  private void Change_Font (int fontNumber)
  {
    font_No = fontNumber;

    currentFontSize = fontBox.fontSize = shadowbox.fontSize = fontSizeSlider.value * fontsizeMinMax[font_No]/fontscale;

    resizeBackgroundImage();

    Change_Outline(hasOutline);   //here's where the subtitle font gets changed.
    Change_Shadow(hasShadow);   //here's where the dropshadow font gets changed.
  }


  //turns outlines on and off on subtitle
  private void Change_Outline (bool is_it_On)
  {
    if(is_it_On)
    {
      fontBox.font = outlineFonts[font_No];       //changes subtitle font
      shadowbox.font = outlineshadowFonts[font_No];   //changes dropshadow font

      fontBox.characterSpacing = shadowbox.characterSpacing = 0.25f;    //increases character spacing if outlines are on for easier readding.

      hasOutline = true;
    }
    else
    {
      fontBox.font = plainFonts[font_No];         //changes subtitle font
      shadowbox.font = shadowFonts[font_No];        //changes dropshadow font

      fontBox.characterSpacing = shadowbox.characterSpacing = 0f;     //removes extra character spacing if outlines are off.

      hasOutline = false;
    }
  }


  //turns Shadows on and off on dropshadow font.
  private void Change_Shadow (bool is_it_On)
  {
    if(is_it_On)
    {
      if(hasOutline) { shadowbox.font = outlineshadowFonts[font_No]; }
      else { shadowbox.font = shadowFonts[font_No]; }

      Fix_ShadowOffset();

      shadowFontBox.SetActive(true);
      hasShadow = true;
    }
    else
    {
      if(hasOutline) { shadowbox.font = outlineshadowFonts[font_No]; }
      else
      {
        shadowbox.font = shadowFonts[font_No];
      }

      shadowFontBox.SetActive(false);
      hasShadow = false;
    }
  }


  //changes drop shadow offset amount when font size changes
  private void Fix_ShadowOffset ()
  {
    shadowOffset = new Vector2(shadowOffsetX + shadowDistance * scaleUp, shadowOffsetY - shadowDistance * scaleUp);
    shadowBoxRT.anchoredPosition = shadowOffset;
  }


  //Updates Color Picker UI
  public void UpdateColorPickers()
  {
    fontUpdateRequired = true;
    backgroudUpdateRequired = true;
  }


  //changes subtitle font color
  public void FontColorChanged (Color passed_Color)
  {
    newFontColorOpacity = passed_Color;
    newFontColorOpacity.a = fontOpacitySlider.value;
    fontBox.color = newFontColorOpacity;
    fontUpdateRequired = true;
  }


  //changes background color
  public void BackgroundColorChanged (Color passed_Color)
  {
    newBackgroundColorOpacity = passed_Color;
    newBackgroundColorOpacity.a = bgOpacitySlider.value;
    captionBackground.color = newBackgroundColorOpacity;
    backgroudUpdateRequired = true;
  }


  //changes subtitle font opacity
  public void FontOpacityChanged ()
  {
    newFontColorOpacity.a = fontOpacitySlider.value;
    fontBox.color = newFontColorOpacity;
  }


  //changes background opacity
  public void BackgroundOpacityChanged ()
  {
    newBackgroundColorOpacity.a = bgOpacitySlider.value;
    captionBackground.color = newBackgroundColorOpacity;
  }


  //Updates Color Pickers
  void LateUpdate()
  {
    if (fontUpdateRequired) { font_Color_Picker.UpdateUI (); fontUpdateRequired = false; }
    if (backgroudUpdateRequired) { background_Color_Picker.UpdateUI (); backgroudUpdateRequired = false; }
  }


  //changes Line Spacing in subtitle and and dropshadows
  public void Change_LineSpacing ()
  {
    fontBox.lineSpacing = shadowbox.lineSpacing = fontLineSpacingSlider.value;
    resizeBackgroundImage ();
  }


  public void resizeBackgroundImage ()
  {
    myCaption = fontBox.text;     //Gets Caption Text

    //sets new font size
    currentFontSize = fontBox.fontSize = shadowbox.fontSize = fontSizeSlider.value * fontsizeMinMax[font_No]/fontscale;

    //gets scale of font to set background box size and drop shadow offset
    scaleUp = currentFontSize/minFontSize;

    if(myCaption == null)           //checks to make sure there is a caption.
    {
      //Debug.Log ("It's null");
      captionBackground.enabled = false;    //turns off caption backgrund if there's no image.
      return;                 //returns if there is no caption.
    }

    if(!captionBackground.enabled) { captionBackground.enabled = true; }  //turns it back on if a caption replaces a blank caption.
     
    captionSplit = myCaption.Split(new string[]{ "\n" }, System.StringSplitOptions.RemoveEmptyEntries); //splits caption into separate lines.
    maxCharacters = 0f;

    for (int i = 0; i < captionSplit.Length; i++)   //we need to get the length of the longest ling of captions to set background box size
    {
      if(captionSplit[i].Length > maxCharacters)
      {
        maxCharacters = captionSplit[i].Length;   //gets length of longest line for setting box width.
      }
    }

    maxCharacters += sidePadding;               //adds padding at side for background box.

    newWidth = maxCharacters * charSize[font_No] * scaleUp;   //gets new width based on font parameters for background box.

    //gets new height based on font parameters for background box.
    newHeight = (lineSize[captionSplit.Length-1] * scaleUp) + (fontLineSpacingSlider.value/110 * lineSize[captionSplit.Length-1]);

    imageboxRT.sizeDelta = new Vector2(newWidth, newHeight);  //sets size of background box.

    Fix_ShadowOffset();                     //Fixes size of dropshadow offset for new font size.
  }
}

Telus finally adds Closed Captions to Optik TV Go app and online.

690 Days.
That’s how long it took Telus to “work on adding closed captions to their Optik TV Go app” and Optik on the Go online, according to their tweet.

The app was 6 years old before they finally added Closed Captions to it.

Note – while the Optik TV Go app on iOS looks good and uses Apple’s AVKit ( you have control over how the captions look via iOS settings), however using a Mac/PC to watch online, the captions are crap.

Watching OptikTV on your Mac/PC requires Flash video. The closed captions in Flash video do not use AVKit, are not customizable, and are poorly formatted. It also does not remember settings (Channel Types -> Playable on the device).

The first time you have to turn on the closed captions they work properly. However, when you return to the site and watch a video, the CC button indicates Close Captions are on, but they don’t work. You have to turn them off and back on to get them to display.

Then there’s the formatting of captions – they don’t follow CRTC standards. So many times captions end with a single word on the next line by as illustrated in the following 3 images:

Image from Telus Optik TV on computer showing poorly formatted captions, where the first one is split into two lines, with only one word on the second line. It reads, "I mean, I don't want to" on the top line, "say" on the second line, and "It's like black and white." on the third line.

Image from Telus Optik TV on computer showing poorly formatted captions. It reads, "I mean, it's shapin' up to" on the first line, "be" on the second line, one of my most favorite" on the third line, and "houses." on the fourth line

Image from Telus Optik TV on computer showing poorly formatted captions. It reads, "Okay. It looks good. I like" on the first line, "it." on the second line, and "-Right here." on the third line

The caption formatting seems to limit captions to 26 characters per line which forces the last word to a new line of captions. Current standards dictate a maximum of 42-45 characters per line of captions for  CE 708 Closed Captions.CE  608 (aka Line 21) Closed Captions has a 32 character limit, which was the standard for 4:3 aspect ratio tvs (the old CRT televisions).

Unfortunately, unlike the US Americans with Disabilities Act, Canada has no Disability Act which sets standards for online Closed Captioning, and Telus is following no standards at all for their OptikTV Go online Closed Captions.

There’s also the similar UI problem as on the television with Optik TV – the Telus UI obscures the Closed Captions, making them difficult to read. While this is worse on the television, it’s still poor design. The UI should not be covering or obscuring Closed Captions, especially since it remains on screen for several seconds, require views to rewind several seconds in order to see the Closed Captions when resuming play.

Image of Optik TV from computer where a dark UI gradient goes from transparent to black on top of the closed captions, with a progress bar at the bottom, the channel and station name on the left "306 HGTVCh", and the name of the show on the right "Home Town."

So, after 6 years, TELUS has half-assed captions that don’t follow proper Closed Captions formats or styles. I guess this puts them slightly ahead of YouTube’s Auto-Craptions.