Mode:
Duration:
1
Coding works best on desktop or with an external keyboard.
Keyboard Input Example - Urho3d Typing CST Test
Keyboard Input Example — Urho3d Code
Responds to keyboard input to move a character.
#include <Urho3D/Engine/Application.h>
#include <Urho3D/Input/Input.h>
#include <Urho3D/Scene/Scene.h>
#include <Urho3D/Graphics/StaticModel.h>
#include <Urho3D/Graphics/Model.h>
using namespace Urho3D;
class InputApp : public Application {
public:
InputApp(Context* context) : Application(context) {}
void Setup() override {}
void Start() override {
scene_ = new Scene(context_);
Node* node = scene_->CreateChild("Player");
node->CreateComponent<StaticModel>()->SetModel(GetSubsystem<ResourceCache>()->GetModel("Models/Box.mdl"));
playerNode = node;
}
void Update(float timeStep) override {
Input* input = GetSubsystem<Input>();
if(input->GetKeyDown(KEY_W)) playerNode->Translate(Vector3(0,0,1)*timeStep);
if(input->GetKeyDown(KEY_S)) playerNode->Translate(Vector3(0,0,-1)*timeStep);
}
private:
SharedPtr<Scene> scene_;
Node* playerNode;
};
URHO3D_DEFINE_APPLICATION_MAIN(InputApp)Urho3d Language Guide
Urho3D is an open-source, cross-platform 2D and 3D game engine written in C++ with optional AngelScript and Lua scripting. It provides a lightweight, flexible environment for building games and real-time simulations.
Primary Use Cases
- ▸2D and 3D PC games
- ▸Mobile games (Android/iOS)
- ▸Educational simulations
- ▸Real-time visualizations
- ▸Interactive prototypes
Notable Features
- ▸C++ core with scripting via AngelScript/Lua
- ▸Cross-platform (Windows, macOS, Linux, iOS, Android)
- ▸Scene graph and node-based architecture
- ▸Integrated physics (Bullet Physics) and networking
- ▸Flexible rendering pipeline (shaders, lights, shadows)
Origin & Creator
Urho3D was created in 2007 by the Finnish developer Jukka Jylänki, later developed and maintained by a community of contributors.
Industrial Note
Urho3D is valued by developers seeking a lightweight, open-source engine with full access to C++ code, cross-platform deployment, and integrated physics and rendering systems.
Quick Explain
- ▸Urho3D is C++-based with scripting support via AngelScript and Lua for rapid prototyping.
- ▸It supports both 2D and 3D graphics, physics, networking, audio, and scene management.
- ▸Used by indie developers, hobbyists, and educators for games, simulations, and interactive applications.
Core Features
- ▸Node and component system
- ▸3D and 2D model support (OBJ, FBX, glTF)
- ▸Camera and lighting system
- ▸Physics and collision detection
- ▸Audio, input, GUI, and particle systems
Learning Path
- ▸Learn C++ fundamentals
- ▸Understand scene graph and node/component system
- ▸Practice physics integration
- ▸Implement custom shaders
- ▸Deploy to multiple platforms
Practical Examples
- ▸2D platformer
- ▸3D racing game
- ▸Physics-based puzzle
- ▸VR prototype
- ▸Interactive 3D visualization
Comparisons
- ▸Urho3D vs Unity: lightweight C++ engine vs full-featured editor-based engine
- ▸Urho3D vs jMonkeyEngine: C++/AngelScript vs Java, more 2D support
- ▸Urho3D vs Godot: flexible C++ core vs GUI-rich editor
- ▸Urho3D vs Unreal: lightweight open-source vs AAA engine
- ▸Urho3D vs LibGDX: C++/3D+2D vs Java/2D+3D hybrid
Strengths
- ▸Lightweight and fast
- ▸Open-source and fully C++ accessible
- ▸Good 2D and 3D support
- ▸Cross-platform deployment
- ▸Active community and example projects
Limitations
- ▸No official visual editor (third-party editors exist)
- ▸Smaller community compared to Unity/Unreal
- ▸Documentation less extensive than major engines
- ▸Networking is basic; advanced multiplayer requires custom work
- ▸Less beginner-friendly without C++ experience
When NOT to Use
- ▸Non-programmer drag-and-drop prototyping
- ▸AAA visual fidelity projects
- ▸Projects requiring large asset marketplaces
- ▸Extensive multiplayer frameworks
- ▸Teams unfamiliar with C++ or scripting
Cheat Sheet
- ▸Scene = root container
- ▸Node = object container
- ▸Component = adds behavior
- ▸ResourceCache = manages assets
- ▸Event system = messaging/signals
FAQ
- ▸Is Urho3D free?
- ▸Yes - fully open-source under MIT license.
- ▸Does it support 2D?
- ▸Yes - both 2D and 3D are supported.
- ▸Which platforms are supported?
- ▸Windows, macOS, Linux, Android, iOS.
- ▸Is it beginner-friendly?
- ▸Moderate; requires C++ or scripting knowledge.
- ▸Does it have a visual editor?
- ▸Limited; third-party editors exist but not core engine.
30-Day Skill Plan
- ▸Week 1: C++ basics and Hello Urho3D
- ▸Week 2: Scene graph and nodes
- ▸Week 3: Physics and collision handling
- ▸Week 4: Shaders, lighting, and post-processing
- ▸Week 5: Cross-platform builds and optimization
Final Summary
- ▸Urho3D is a lightweight, C++-based 2D/3D engine with scripting support.
- ▸It supports cross-platform deployment and flexible scene graph architecture.
- ▸Best suited for C++ developers and hobbyists creating games, simulations, or prototypes.
- ▸Offers open-source flexibility with integrated physics and rendering systems.
- ▸Less suitable for rapid drag-and-drop development or AAA projects.
Project Structure
- ▸Main.cpp - entry point
- ▸Scenes/ - scene files
- ▸Resources/ - models, textures, audio
- ▸Scripts/ - AngelScript/Lua files
- ▸Components/ - custom C++ or scripts
Monetization
- ▸Paid PC/mobile games
- ▸In-app purchases on mobile
- ▸Educational licensing
- ▸Ad integration via SDK
- ▸VR/AR commercial projects
Productivity Tips
- ▸Use example projects for faster setup
- ▸Reuse Components
- ▸Profile performance early
- ▸Use LOD for large models
- ▸Batch static geometries
Basic Concepts
- ▸Scene graph: hierarchical node structure
- ▸Node: basic object container
- ▸Component: adds functionality to nodes
- ▸Resource cache: manages models, textures, audio
- ▸Event system: signal-slot messaging