Blueprint Template Library

The Blueprint Template Library provides 15 production-ready gameplay systems that you can drop into any Unreal Engine 5.7 project and customize to fit your needs. All systems are fully Blueprint-accessible with delegates, editor customizations, GameplayTag support, full multiplayer replication, and AI behavior tree integration.

135+ source files across 4 modules (Runtime, Editor, AI, Debug). Created by StraySpark.

Overview

Feature	Details
Plugin Name	BlueprintTemplateLibrary
Version	2.0
Systems	15 gameplay systems
Source Files	135+ (Runtime + Editor + AI + Debug)
Modules	4 (Runtime, Editor, AI, Debug)
Engine	Unreal Engine 5.7
Networking	Full replication with Server RPCs
AI	13 Behavior Tree nodes
Build	DX12 / SM6, BuildSettingsVersion.V6
Created By	StraySpark

Systems Included

Core Systems

System	Component / Asset	Library	Description
Health	UHealthComponent	UHealthSystemLibrary	Health, shield, armor, damage resistances, regen, invincibility, death/revival, faction friendly fire
Inventory	UInventoryComponent	UInventorySystemLibrary	Items, 9 equipment slots, crafting, currency, transfers
Dialogue	UDialogueDataAsset	UDialogueSystemLibrary	Branching dialogue trees with audio, portraits, moods, token replacement
Quest	UQuestComponent + UQuestDataAsset	UQuestSystemLibrary	Objectives, prerequisites, rewards, auto-complete
Ability/Buff	UAbilityComponent	UAbilitySystemLibrary	Abilities, cooldowns, mana, stackable buffs/debuffs
Stat/Attribute	UStatComponent	UStatSystemLibrary	Tag-based stats with layered modifiers
Interaction	UInteractableComponent + UInteractionComponent	UInteractionSystemLibrary	Proximity detection, line-of-sight, prompts, limited-use
Save/Load	UBlueprintTemplateSaveGame	USaveSystemLibrary	Slot-based save/load with custom key-value data

V2 Advanced Systems

System	Component / Asset	Library	Description
Progression	UProgressionComponent + UProgressionDataAsset	UProgressionLibrary	XP tracking, linear/exponential/custom level curves, skill points, auto-stat bonuses
Faction/Reputation	UFactionComponent + UFactionDataAsset	UFactionLibrary	Faction membership, reputation tracking, 5 relationship tiers, friendly fire rules
Status Effects	UStatusEffectComponent + UStatusEffectDataAsset	UStatusEffectLibrary	Ticking effects, stacking rules, immunity tags, cleansing, VFX/audio
Loot Tables	ULootTableDataAsset	ULootTableLibrary	Weighted drops, guaranteed drops, condition filtering, DataTable integration
Skill Trees	USkillTreeComponent + USkillTreeDataAsset	USkillTreeLibrary	Node-based trees, prerequisites, multi-rank nodes, ability unlocks, stat bonuses
Party/Team	UPartyComponent	UPartyLibrary	Group management, shared quest progress, shared XP distribution
Animation	UGameplayAnimComponent	—	GameplayTag-to-montage mapping with auto-binding to gameplay events

Infrastructure

Feature	Class	Description
Gameplay Event Bus	UGameplayEventSubsystem	Central pub/sub using GameplayTags for cross-system communication
Global Registry	UBlueprintTemplateSubsystem	Manages faction data, loot tables, progression curves, skill trees
AI Integration	13 BT nodes	5 Tasks, 5 Decorators, 3 Services for AI behavior trees
Debug Tools	UBlueprintTemplateCheatManager	Console commands and debug HUD overlay (excluded from shipping)

Architecture

All fifteen systems follow the same pattern:

• Component or DataAsset — attach to any actor or create in Content Browser
• Blueprint Function Library — static helper functions, no component reference needed
• Multicast delegates — Blueprint-assignable events for UI and gameplay responses
• Editor detail customization — progress bars, summaries, quick-action buttons, presets
• GameplayTag support — tag-based conditions, damage types, stat identifiers, and filtering
• Replication — Server RPCs for state changes, OnRep callbacks for client updates
• Event Bus integration — cross-system communication via GameplayTag events

Design Principles

• Modular — Every component works independently. Use only what you need.
• Cooperative — Components discover siblings via FindComponentByClass and auto-integrate (e.g., StatusEffect applies damage through HealthComponent).
• Blueprint-First — Every property is EditAnywhere, BlueprintReadWrite. Every function is BlueprintCallable. Every event is BlueprintAssignable.
• Data-Driven — Quests, dialogue, factions, loot tables, skill trees, progression curves, and status effects are all Data Assets.
• Network-Ready — All components support replication with Server RPCs for authoritative gameplay.

Plugin Structure

Plugins/BlueprintTemplateLibrary/
  BlueprintTemplateLibrary.uplugin
  Source/
    BlueprintTemplateLibraryRuntime/     (~60 files)
      Public/
        BlueprintTemplateLibraryRuntimeModule.h
        BlueprintTemplateTypes.h
        BlueprintTemplateTypesV2.h
        BlueprintTemplatePresets.h
        GameplayEventSubsystem.h
        BlueprintTemplateSubsystem.h
        HealthComponent.h / HealthSystemLibrary.h
        StatComponent.h / StatSystemLibrary.h
        AbilityComponent.h / AbilitySystemLibrary.h
        InventoryComponent.h / InventorySystemLibrary.h
        InteractableComponent.h / InteractionComponent.h / InteractionSystemLibrary.h
        QuestDataAsset.h / QuestComponent.h / QuestSystemLibrary.h
        DialogueDataAsset.h / DialogueSystemLibrary.h
        BlueprintTemplateSaveGame.h / SaveSystemLibrary.h
        ProgressionComponent.h / ProgressionDataAsset.h / ProgressionLibrary.h
        FactionComponent.h / FactionDataAsset.h / FactionLibrary.h
        StatusEffectComponent.h / StatusEffectDataAsset.h / StatusEffectLibrary.h
        LootTableDataAsset.h / LootTableLibrary.h
        SkillTreeComponent.h / SkillTreeDataAsset.h / SkillTreeLibrary.h
        PartyComponent.h / PartyLibrary.h
        GameplayAnimComponent.h
        DataTableRowStructs.h
      Private/
        (matching .cpp files)
    BlueprintTemplateLibraryEditor/      (~20 files)
      Public/
        Detail customizations for all components
        Asset type actions for data assets
      Private/
        (matching .cpp files)
    BlueprintTemplateLibraryAI/          (~30 files)
      Public/AI/
        Tasks/     (5 BT task nodes)
        Decorators/ (5 BT decorator nodes)
        Services/   (3 BT service nodes)
      Private/AI/
        (matching .cpp files)
    BlueprintTemplateLibraryDebug/       (~8 files)
      Public/
        BlueprintTemplateDebugSubsystem.h
        BlueprintTemplateCheatManager.h
      Private/
        (matching .cpp files)

Editor Features

Each system includes custom detail panel customizations in the Unreal Editor:

• Health — Health and shield progress bars, HP/Shield text display, quick setup presets (Tank, Assassin, Support, Healer), Full Heal button
• Inventory — Slot and weight summary, Add Test Item button, Clear Inventory button, Sort by Name / Sort by Rarity buttons
• Dialogue — Custom Content Browser color (green), Gameplay category placement
• Quest — Quest summary (Active / Completed / Failed counts), Clear All Quest Data button, custom Content Browser color (blue)
• Ability — Mana progress bar, Abilities/Buffs/Mana summary, Clear All Buffs button, Restore Full Mana button
• Stat — Stat count and modifier count summary, Clear All Modifiers button
• Interaction — Detection range, scan interval, and line-of-sight summary display
• Progression — Level, XP, and skill points display with Add XP button
• Faction — Current faction and reputation display
• Status Effects — Active effects list with Clear All button
• Skill Tree — Unlocked nodes summary with Reset Tree button

Presets

Pre-configured setups are accessible through UBlueprintTemplatePresets and the editor detail panels:

Category	Presets
Health	Tank (500 HP, 200 Shield, 0.75x damage), Assassin (100 HP, 2.0x damage), Support (200 HP, 300 Shield), Healer (200 HP, 150 Shield, high regen)
Inventory	Adventurer (6 exploration items), Warrior (6 combat items), Mage (6 magic items)
Dialogue	Tutorial NPC (8-node branching dialogue tree)
Quest	Tutorial Quest (2 objectives), Kill Quest (requires Tutorial Quest as prerequisite)
Progression	Linear (levels 1-50, 100 base XP + 50/level), Exponential (levels 1-100)
Factions	Kingdom (lawful, moderate thresholds), Bandit (hostile-by-default)
Loot Tables	Basic (common mob drops), Boss (guaranteed rare + epic/legendary chances)
Skill Trees	Warrior (6-node melee tree), Mage (6-node magic tree)
Status Effects	Poison (5 dmg/sec, stacks to 3), Burning (8 dmg/0.5s, refreshes), Regeneration (heals 10/sec)

Requirements

• Unreal Engine 5.7
• DX12 / SM6
• GameplayTags module (included with engine)
• No third-party dependencies

Getting Started

See the Getting Started guide for installation and your first component setup.