UE5-Modular-Game-Framework/docs/blueprints/12-settings/104_BPC_AccessibilitySettings.md

72 — BPC_AccessibilitySettings

Blueprint Spec — UE 5.5–5.7

---

Parent Class

ActorComponent

Dependencies

• SS_SettingsManager — Reads accessibility settings
• WBP_AccessibilityUI — UI integration
• BPC_TutorialSystem — Tutorial accessibility
• BPC_AudioManager — Audio accessibility

Purpose

Applies accessibility-focused modifications to the game based on user settings including colorblind modes, subtitle configuration, screen shake reduction, high-contrast UI, text-to-speech, reduced motion, and audio cue visualizations. Operates as a local player component that reads from SS_SettingsManager and applies changes at runtime.

Enums

EColorBlindMode

Value	Description
None	Default colors
Protanopia	Red-blind filter
Deuteranopia	Green-blind filter
Tritanopia	Blue-blind filter

ESubtitleSize

Value	Description
Small	Default size
Medium	150% size
Large	200% size
ExtraLarge	300% size

EScreenShakeLevel

Value	Description
Full	All screen shakes enabled
Reduced	50% intensity cap
Minimal	25% intensity cap
Off	No screen shake

Variables

Name	Type	Description
ColorBlindMode	EColorBlindMode	Current colorblind filter
SubtitleSize	ESubtitleSize	Subtitle text scale
bHighContrastUI	Bool	High contrast mode
bTextToSpeech	Bool	TTS for UI text
bReducedMotions	Bool	Disable UI animations
bLargeText	Bool	Enlarge all UI text
ScreenShakeLevel	EScreenShakeLevel	Camera shake intensity
bVisualizeAudioCues	Bool	Show audio direction indicators
bAutoReadDialogue	Bool	Auto-play dialogue subtitles
bPauseOnDialogue	Bool	Auto-pause during dialogue
bDisableFlashEffects	Bool	Prevent strobe/photosensitive effects

Functions

Name	Inputs	Outputs	Description
Initialize	—	—	Read settings, apply initial state
SetColorBlindMode	Mode: EColorBlindMode	—	Apply colorblind filter
SetSubtitleSize	Size: ESubtitleSize	—	Update subtitle scale
SetHighContrastUI	bEnabled: Bool	—	Toggle high contrast
SetTextToSpeech	bEnabled: Bool	—	Toggle TTS
SetReducedMotions	bEnabled: Bool	—	Toggle reduced motion
SetLargeText	bEnabled: Bool	—	Toggle large text
SetScreenShakeLevel	Level: EScreenShakeLevel	—	Update shake intensity
SetVisualizeAudioCues	bEnabled: Bool	—	Toggle audio visualization
SetDisableFlashEffects	bEnabled: Bool	—	Disable flashing effects
ApplyColorBlindCorrection	—	—	Post-process color matrix
ApplyHighContrastMaterials	—	—	Override UI material
DisableFlashInVFX	—	—	Remove strobe from VFXManager
HandleDialogueAutoRead	DialogueText: FText	—	TTS for dialogue
ProvideAudioDirectionIndicator	SoundLocation: FVector	—	Show direction arrow
ReadUITextAloud	Text: FText	—	TTS for UI elements

Blueprint Flow

[Initialize]
  └─► Read from SS_SettingsManager:
         ColorBlindMode = GetSetting("ColorBlindMode")
         SubtitleSize = GetSetting("SubtitleSize")
         bHighContrastUI = GetSettingBool("HighContrastUI")
         etc.
  └─► ApplyColorBlindCorrection()
  └─► ApplyHighContrastMaterials()
  └─► Register callbacks for OnSettingChanged dispatcher

[ApplyColorBlindCorrection]
  └─► Use UPostProcessComponent on player camera
  └─► Set Color Grading LUT based on mode:
         Protanopia:    Shift red channel matrix
         Deuteranopia:  Shift green channel matrix
         Tritanopia:    Shift blue channel matrix
  └─► Apply via PostProcessSettings.ColorGradingSettings

[ApplyHighContrastMaterials]
  └─► Override all WBP widget materials with high-contrast versions
  └─► Increase outline thickness on all interactive elements
  └─► Increase font weight and contrast ratio

[DisableFlashInVFX]
  └─► Call BPC_VFXManager.SetFearVFXEnabled(false) during flash sequences
  └─► Remove strobe flicker from BPC_LightingManager fear-reactive lights
  └─► Replace flash transitions with fade transitions

Communications With

Target	Method	Why
SS_SettingsManager	Event	Settings changes
BPC_VFXManager	Get owner	Disable flash effects
BPC_LightingManager	Get owner	Disable flicker
BPC_AudioManager	Get owner	Audio cues
BPC_TutorialSystem	Direct call	Accessible tutorials

Reuse Notes

• Color blindness correction uses post-process color grading matrix
• Subtitle scaling modifies URichTextBlock font size globally
• High contrast mode uses alternate widget styles
• Screen shake reduction caps camera shake intensity in player controller
• Visual audio cues use world-space widget arrows pointing to sound origin
• Flash effect disable also affects DynamicEvent light flicker