Grid Placement System

A powerful and flexible grid-based object placement framework for Unreal Engine 5.
It features precision controls, multi-surface support, and intuitive UI components - making it perfect for any builder games.

Playable Demo : HERE

Preview Video : HERE
Documentation : HERE

Public Discord : HERE

• Plug-and-play into any project

• Procedural infinite grid material

• Snap-to-grid placement with fully configurable sizes

• Multi-surface support (floors, walls, roofs)

• Precision (free-form) mode for detailed adjustments

• Real-time placement validation with clear error feedback

  
  ? Input & Camera Integration

• Built on the Enhanced Input System

• Customizable Input Mapping Contexts

• Works seamlessly in both FPP and TPP

• Runtime camera optimized for placement mode

• Full keyboard and mouse support out of the box

  ? Visual Feedback

• Grid per surface

• Color-coded indicators (Green = valid, Red = invalid)

• Preview meshes with outline materials

• Directional arrows for easy orientation

  ?️ UI Components

• Ready-to-use widgets for object selection

• Category-based filtering and search support

• Customizable item widgets

• Simple integration with your existing UI

  ⚙️ Developer Friendly

• Full Blueprint and C++ support

• Modular, component-based architecture

• Exposed settings for quick iteration

• Easily extensible for custom workflows

? Quick Setup

1. Only needs 2 Components
   Add these to your Player Pawn Blueprint:

   class UPlacementSystemComponent* PlacementSystem;
   class UPlacementObjectRegistry* ObjectRegistry;

2. Initialize the System
   Call: InitializePlacementSystem(); via PlacementHelper in Blueprint.

3. Register Placeable Objects
   Use: RegisterObject(); via PlacementHelper // For individual placeable object

   or define them in FPlaceableObjectDataTable.
   Both methods work seamlessly.

4. Create UI
   Use the built-in default UI, or seamlessly integrate with your own custom UI.

5. Start Placement
   Begin placing objects with:

   StartPlacing(AMyChair::StaticClass());

Build your own Sims-style creative experience, and happy runtime designing!