Accessibility¶

Skill ID: ivx-accessibility

name: ivx-accessibility description: >- Add accessibility features to IntelliVerseX SDK games including color blind support, screen readers, scalable UI, input remapping, and certification compliance. Use when the user says "accessibility", "color blind mode", "screen reader", "font scaling", "input remapping", "WCAG compliance", "subtitle system", "high contrast", "one-handed play", "switch control", "accessibility audit", "Xbox accessibility", "PlayStation accessibility", "CVAA", "Section 508", or needs help with any accessibility feature or certification. version: "1.0.0" author: "IntelliVerse-X team@intelli-verse-x.ai" allowed-tools: - Read - Write - Edit - Glob - Grep - Shell

Overview¶

The Accessibility module provides drop-in features for making games playable by everyone. It covers visual, auditory, motor, and cognitive accessibility needs, with built-in compliance checkers for WCAG 2.1, CVAA (21^st Century Communications and Video Accessibility Act), Xbox Accessibility Guidelines (XAG), and PlayStation accessibility requirements.

IVXAccessibilityManager (central coordinator)
      │
      ├── IVXColorBlindFilter     → Simulation + correction shaders
      ├── IVXScreenReaderBridge   → TalkBack / VoiceOver / Narrator
      ├── IVXScalableUI           → Dynamic font sizing + layouts
      ├── IVXInputRemapper        → Custom bindings + one-handed modes
      ├── IVXSubtitleSystem       → Captions with speaker ID + settings
      ├── IVXHighContrastMode     → High contrast UI + outlines
      └── IVXAccessibilityAudit   → WCAG / XAG compliance checker

1. Configuration¶

IVXAccessibilityConfig ScriptableObject¶

Create via Create > IntelliVerseX > Accessibility Configuration.

2. Color Blind Support¶

IVXColorBlindFilter¶

Post-processing shader that simulates or corrects for color vision deficiencies:

using IntelliVerseX.Accessibility;

IVXColorBlindFilter.Instance.SetMode(ColorBlindMode.Deuteranopia);

Modes¶

Simulation Mode (Design Tool)¶

IVXColorBlindFilter.Instance.SetSimulationMode(ColorBlindMode.Deuteranopia);

Use in the editor to preview how your game looks to color blind players.

Color Palette Helper¶

var palette = IVXColorBlindFilter.Instance.GetSafePalette(paletteSize: 8);

foreach (var color in palette)
{
    Debug.Log($"Safe color: #{ColorUtility.ToHtmlStringRGB(color)}");
}

Returns colors distinguishable across all common color vision types.

3. Screen Reader Integration¶

IVXScreenReaderBridge¶

Bridges game UI to platform screen readers:

IVXScreenReaderBridge.Instance.Announce("Level 5 complete. Score: 12,500 points.");

IVXScreenReaderBridge.Instance.SetFocusDescription(
    element: startButton,
    label: "Start Game",
    hint: "Double tap to begin playing"
);

Platform Screen Readers¶

Accessible Navigation¶

IVXScreenReaderBridge.Instance.SetNavigationOrder(new[]
{
    titleText,
    playButton,
    settingsButton,
    quitButton,
});

4. Scalable UI¶

IVXScalableUI¶

Dynamic font sizing and layout adaptation:

IVXScalableUI.Instance.SetFontScale(1.5f);

IVXScalableUI.Instance.OnFontScaleChanged += (newScale) =>
{
    RefreshAllTextElements();
};

Auto-Scaling Components¶

Touch Target Validation¶

var violations = IVXScalableUI.Instance.ValidateTouchTargets(minSize: 44);

foreach (var v in violations)
{
    Debug.LogWarning($"Touch target too small: {v.Element.name} ({v.Width}x{v.Height})");
}

5. Input Remapping¶

IVXInputRemapper¶

Custom input bindings with accessibility profiles:

IVXInputRemapper.Instance.SetProfile(InputProfile.OneHanded);

IVXInputRemapper.Instance.Remap("jump", new InputBinding
{
    Keyboard = KeyCode.Space,
    Gamepad = GamepadButton.South,
    Touch = TouchGesture.Tap,
});

Built-In Profiles¶

Hold vs Toggle¶

IVXInputRemapper.Instance.SetHoldToToggle("sprint", true);
IVXInputRemapper.Instance.SetHoldToToggle("aim", true);

6. Subtitle System¶

IVXSubtitleSystem¶

Configurable captions for dialog, narration, and sound effects:

IVXSubtitleSystem.Instance.Show(new Subtitle
{
    Speaker = "Professor Oak",
    SpeakerColor = Color.green,
    Text = "Welcome to the world of trivia!",
    Duration = 3.0f,
    IsNarration = false,
});

IVXSubtitleSystem.Instance.ShowSoundEffect("[explosion rumbles]");

Subtitle Settings¶

7. High Contrast Mode¶

IVXHighContrastMode¶

Enhanced visual clarity for low-vision players:

IVXHighContrastMode.Instance.Enable();

IVXHighContrastMode.Instance.SetOutlineColor(Color.yellow);
IVXHighContrastMode.Instance.SetOutlineWidth(3f);
IVXHighContrastMode.Instance.SetBackgroundDimming(0.7f);

Features¶

8. Accessibility Settings Menu¶

Drop-In Prefab¶

The SDK includes a ready-to-use accessibility settings panel:

IVXAccessibilityMenu.Instance.Show();

The menu includes: - Font size slider - Color blind mode selector - Subtitle toggle and settings - High contrast toggle - Input remapping interface - Screen reader toggle - Motion reduction toggle - Screen shake toggle

Persistence¶

Settings are saved to PlayerPrefs (Unity) or platform-equivalent storage and restored on next launch.

9. Accessibility Audit¶

IVXAccessibilityAudit¶

Automated compliance checking:

var report = await IVXAccessibilityAudit.Instance.RunAuditAsync(AuditStandard.WCAG_21_AA);

Debug.Log($"Score: {report.Score}/100");
Debug.Log($"Pass: {report.PassCount}, Fail: {report.FailCount}, Warning: {report.WarningCount}");

foreach (var issue in report.Issues)
{
    Debug.Log($"[{issue.Severity}] {issue.Guideline}: {issue.Description}");
    Debug.Log($"  Element: {issue.Element}, Fix: {issue.SuggestedFix}");
}

Supported Standards¶

Audit Categories¶

10. Cross-Platform API¶

Platform-Specific Accessibility¶

VR Platforms¶

Console Platforms¶

WebGL / Browser¶

Checklist¶

• EnableAccessibility toggled on in IVXBootstrapConfig
• Accessibility settings menu integrated and accessible from main menu
• Color blind filter tested in all three common modes
• Screen reader integration tested on target platforms
• Font scaling tested at 0.75x through 2.0x without layout breaks
• All touch targets >= 44x44 dp
• Input remapping available for all game actions
• Subtitles available for all dialog and narration
• Sound effect captions available for gameplay-critical audio
• High contrast mode tested on all key screens
• WCAG 2.1 AA audit passed (score > 80)
• XAG compliance reviewed (if targeting Xbox)
• Sony TRC accessibility requirements met (if targeting PlayStation)
• CVAA compliance verified for chat/voice features (if multiplayer)
• VR comfort settings included (if targeting VR)
• WebGL ARIA attributes and keyboard navigation verified (if targeting browser)