15d6e88780
- Added BPC_PlatformServiceAbstraction to centralize platform detection and SDK routing for achievements, cloud saves, and overlays. - Updated dependencies across various systems to utilize the new platform service for consistent platform handling. - Deprecated old platform enums in favor of a unified EPlatformFamily enum. - Enhanced documentation for affected systems to reflect changes in platform handling and dependencies.
5.6 KiB
5.6 KiB
SS_AchievementSystem — Achievement System Subsystem
Blueprint Spec — UE 5.5–5.7
Parent Class
UGameInstanceSubsystem
Dependencies
- Requires:
SS_SaveManager— Persist achievement data - Requires:
BPC_PlayerMetricsTracker— Player stats source - Requires:
BPC_NarrativeStateSystem— Story progression - Required By:
WBP_NotificationToast— UI notification - Required By:
BPC_PlatformServiceAbstraction— Platform API routing (Steam/PSN/Xbox/Nintendo) - Engine/Plugin Requirements: GameplayTags, Platform SDK plugins (Steamworks, PSN, Xbox GDK, Nintendo SDK — all optional)
Purpose
Platform-agnostic achievement and trophy tracking system. Manages achievement definitions, progress tracking, unlock logic, and platform API submission. Supports hidden achievements, progress-based achievements, and cross-save achievement state persistence.
Enums
E_AchievementState
| Value | Description |
|---|---|
| Locked | Not yet discovered |
| InProgress | Progress saved but not complete |
| Unlocked | Achievement earned |
| Hidden | Not shown to player until unlocked |
E_AchievementCategory
| Value | Description |
|---|---|
| Story | Story progression achievements |
| Exploration | Discovery and map completion |
| Combat | Enemy kill and combat achievements |
| Collectible | Item and lore collection |
| Challenge | Skill-based achievements |
| Difficulty | Difficulty-based achievements |
| Secret | Hidden achievements |
| Completionist | 100% completion |
Structs
S_AchievementState
| Field | Type | Description |
|---|---|---|
| AchievementTag | GameplayTag | Unique identifier |
| Title | FText | Display name |
| Description | FText | How to unlock |
| HiddenDescription | FText | Description shown after unlock |
| Category | E_AchievementCategory | Grouping |
| State | E_AchievementState | Current state |
| ProgressCurrent | Float | Current progress (0–1) |
| ProgressTarget | Float | Target value |
| bShowProgress | Bool | Show progress bar |
| Icon | Texture2D | Achievement image |
| Gamerscore | Int32 | Points value |
| bIsCrossSave | Bool | Persists across all saves |
Variables
| Name | Type | Description |
|---|---|---|
AchievementRegistry |
Map (GameplayTag → S_AchievementState) | All achievement definitions and current state |
UnlockedAchievements |
Set of GameplayTag | Already unlocked achievement tags |
TotalGamerscore |
Int32 | Cumulative score |
bAchievementPopupEnabled |
Bool | Toast display toggle |
PendingAchievementQueue |
Array of S_AchievementState | Toasts waiting to show |
bShowingAchievement |
Bool | Currently displaying toast |
bOfflineMode |
Bool | Platform submission deferred |
Functions
| Name | Inputs | Outputs | Description |
|---|---|---|---|
Initialize |
— | — | Load achievement data, register callbacks |
NotifyEvent |
EventTag: GameplayTag, Value: Float | — | Called by game systems; checks all relevant achievements |
UnlockAchievement |
AchievementTag: GameplayTag | — | Marks unlocked, submits to platform |
UpdateProgress |
AchievementTag: GameplayTag, Delta: Float | — | Increments progress tracker |
GetAchievementState |
AchievementTag: GameplayTag | S_AchievementState | Returns current state |
GetAllAchievements |
— | Array of S_AchievementState | For achievements menu |
GetAchievementsByCategory |
Category: E_AchievementCategory | Array of S_AchievementState | Filter by category |
GetUnlockedCount |
— | Int32 | Total unlocked |
GetTotalGamerscore |
— | Int32 | Cumulative score |
IsUnlocked |
AchievementTag: GameplayTag | Bool | Quick check |
SaveAchievementData |
— | — | Persist to save |
LoadAchievementData |
— | — | Read from save |
SubmitPendingToPlatform |
— | — | Flush pending on reconnect |
Event Dispatchers
| Name | Parameters | Fired When |
|---|---|---|
OnAchievementUnlocked |
AchievementTag: GameplayTag, Gamerscore: Int32 | Achievement earned |
OnProgressUpdated |
AchievementTag: GameplayTag, NewProgress: Float | Progress changed |
Communications With
| Target | Method | Why |
|---|---|---|
SS_SaveManager |
Direct call | Persistence |
BPC_PlayerMetricsTracker |
Direct read | Stats for achievements |
BPC_NarrativeStateSystem |
Direct read | Story achievements |
WBP_NotificationToast |
Create widget | Toast display |
BPC_PlatformServiceAbstraction |
Direct call | Platform SDK routing (Steam/PSN/Xbox/Nintendo) |
Reuse Notes
- Achievements are data-driven from
DA_AchievementDataassets - Progress tracking enables percentage-based achievements
- Hidden achievements use separate description after unlock
- Toast queue prevents overlap during rapid unlocks
- Cross-save flag enables achievements that persist across save slots
- Gamerscore total is calculated automatically
- Renamed from
BPC_AchievementManagertoSS_AchievementSystemper Master naming convention.
Specification based on Master Section 11.1, line 3116.