BPC_ItemCombineSystem — Item Combine System
Parent Class: ActorComponent
Category: Inventory
Target UE Version: 5.5–5.7
Build Phase: 3 — Inventory
1. Overview
BPC_ItemCombineSystem handles item combination and crafting — combining two or more inventory items to create new items. Supports recipe-based combinations, ingredient validation, and result generation.
2. Enums
E_CombineResult
| Value |
Description |
Success |
Items combined successfully |
MissingIngredients |
Not all required items present |
IncompatibleItems |
Items cannot be combined |
InventoryFull |
No space for result item |
RecipeNotFound |
No recipe matches combination |
3. Variables
| Variable |
Type |
Description |
Recipes |
TArray<DA_RecipeData*> |
Loaded recipe data assets |
CombineCooldown |
float |
Time between combine operations |
bConsumeIngredients |
bool |
Remove ingredients on combine |
4. Functions
| Function |
Description |
CombineItems |
Attempts to combine two items by slot index |
GetValidRecipes |
Returns all recipes matching current inventory items |
PreviewResult |
Shows result item without consuming ingredients |
CanCombine |
Checks if two items have a valid recipe |
5. Event Dispatchers
| Dispatcher |
Payload |
Description |
OnCombineSuccess |
S_InventoryEntry Result |
Items combined |
OnCombineFailed |
E_CombineResult Reason |
Combination failed |
OnRecipeDiscovered |
DA_RecipeData Recipe |
New recipe found |
6. Dependencies
| System |
Relationship |
BPC_InventorySystem |
Reads and modifies inventory items |
DA_RecipeData |
Recipe definitions |
7. Reuse Notes
- Data-driven recipe system; designers add recipes via data assets
