Simple Modular Vehicle Controller (SMVC)

Play a WebGL demo:

https://transylvanian-tales.itch.io/simple-modular-vehicle-controller-demo

SMVC (Simple Modular Vehicle Controller) is a modular, extensible vehicle framework built using a clean component-system architecture.

Instead of relying on a single monolithic car controller, SMVC breaks vehicle behavior into independent modules such as Engine, Gearbox, Steering, Brakes, and more. This allows you to easily customize, extend, or replace functionality without affecting the rest of the system.

----------------------------------------

Contact And Support

----------------------------------------

Don't know how to run SMVC?

Don't know how to setup your own car models?

Have any questions or suggestions?

Contact us at:

[email protected]

Step-by-step tutorials are available here:

https://www.youtube.com/playlist?list=PL2ESxGsWSBc4aL4EqsdrzWQ9cuPCrFuSN

----------------------------------------

Use Any Car Model

----------------------------------------

SMVC works with any car model, feel free to use your own models.

The blue car comes with SMVC and is fully driveable.

The white car from the screenshots is NOT included!

If you don't know how to setup your own car models, watch the tutorial videos or contact us.

----------------------------------------

Core Architecture

----------------------------------------

SMVC follows a structured, data-driven design:

• Configurations (ScriptableObjects)

Define static data such as engine power, gear ratios, and braking force

• Components (MonoBehaviours)

Store runtime state and reference configurations

• Systems

Process all components globally, keeping logic centralized and efficient

This separation ensures clean code, high scalability, and easy maintenance.

----------------------------------------

Key Features

----------------------------------------

• Modular Design

Each vehicle feature is its own independent module

• Input Agnostic

Works with any input system (New Input System, legacy input, custom input systems, etc.)

• Data-Driven

Tune vehicles using ScriptableObjects without changing code

• Component-System Architecture

Systems process all components globally for better organization and performance

• Highly Extensible

Add new systems and modules without modifying existing code

• Multi-Pipeline Support  

Supports Built-in, URP, and HDRP.  

URP and HDRP demo content is provided via included .unitypackage files for easy import.

----------------------------------------

Included Modules

----------------------------------------

• Engine & Gearbox

RPM simulation, torque calculation, automatic shifting

• Steering

Wheel-based steering with configurable angles

• Brakes

Simple and responsive braking system

• Wheels

Physics + visual synchronization using WheelColliders

• Speedometer

Real-time speed calculation (KPH / MPH)

• Camera & Dashboard

Basic chase camera and UI needle system for demos

----------------------------------------

Use Cases

----------------------------------------

• Prototype vehicle mechanics

• Learn modular architecture in Unity

• Build arcade-style driving systems

• Create your own custom vehicle controllers

Note:

This asset is designed as a flexible foundation and learning resource, not a full realistic vehicle simulation.

----------------------------------------

Third-Party Content

----------------------------------------

This asset includes third-party demo content:

• A 3D car model used in the demo scenes

The model is provided as part of this asset and is covered under the Unity Asset Store Standard EULA for use within your projects.

Important:

• You can freely use the included car model in your games and applications

• No attribution is required

• There are no additional restrictions beyond the standard Asset Store EULA

Full details, including the original author, source, and permissions, are available inside the asset at:

/Assets/TransylvanianTales/SMVC/THIRD-PARTY NOTICES.txt

Note:

The demo content is optional and can be safely removed if you only need the core vehicle system.

----------------------------------------

API Usage Disclosure

----------------------------------------

This asset does NOT use any external APIs, web services, or third-party code libraries.

• No API keys are required

• No external services are accessed

• No data is sent or received over the network

All functionality is implemented entirely using Unity’s built-in systems.