ComboGraph

The ComboGraph plugin which provides a system for defining and handling combo sequences in Unreal Engine. It brings new fully functional blueprint-based graph to create complex combo chains.

Main idea is not creating new production-ready solution, but rather to provide core functionality for developers who wants to build their own system.

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🌟 Features

• Define combo sequences using nodes in a blueprint-based graph.
• Handle input actions to trigger combos.
• Play animations for each combo step.
• Support for different types of combo nodes (Opener, Midler, Ender).

🚀 Installation

• Clone or download the ComboGraph plugin into your project's Plugins directory.
• Open your project in Unreal Engine.
• Enable the ComboGraph plugin in the Plugins window.

⚔️ Usage

How to properly setup system:

• Create a new ComboGraph and define your combo sequences with nodes.
• Every node should have set InputAction and ComboMontage properties. Montage also should have set UCanContinueComboNotifyState which will be window to continue combo.
• Implement IComboHandlerInterface for your character.
• Set the ComboGraph and ComboInputMappingContext properties on the UComboHandlerComponent.
• Now you can try to use it.

📙 Examples

Those are examples of combo sequences implemented with ComboGraph plugin

🎬 Showcase

📄 Technical Documentation

Core

Functionality is separated into two main modules: ComboGraphEditor and ComboGraphRuntime.

First one is responsible for editor-related logic, like creating nodes and connections. It also handle basic commands, drag and drop, and other editor-related stuff.

Second one is responsible for runtime logic, like handling input actions and playing animations.

Combo Graph Node

The UComboGraphNode class is the parent class for all combo sequence nodes. It includes properties for input actions, animations, and connections to other nodes.

Combo Node Types

Combo nodes are defined using the EComboNodeType enum:

• None: No specific type.
• Opener: The starting node of a combo.
• Midler: A middle node in a combo sequence.
• Ender: The ending node of a combo.

By default, connection policy is predefined, but can be overriden with UComboGraphEnderNode::CanCreateConnectionFrom and UComboGraphNode::CanCreateConnectionTo

Connection Policy Table

Node Type	Can Connect From	Can Connect To
Opener	Can't be connected from anything	Midler
Midler	Opener, Midler	Midler, Ender
Ender	Midler	Can't be connected to anything

ComboHandlerComponent

The UComboHandlerComponent class handles the logic for processing combo sequences. It binds input actions, finds suitable combo nodes, and plays animations.