#Input System

#Overview

The Input system provides frame-aware input tracking for both the editor and gameplay scripts.

#Editor Camera Controls

The editor viewport uses the following controls:

#Gameplay Input via C++ Behaviors

For gameplay input, use the Input class accessible via engine.GetInput() in Behavior subclasses. The following methods are available:

#Key Constants

Available key constants (from GLFW):

KEY_W, KEY_A, KEY_S, KEY_D, KEY_SPACE, KEY_ESCAPE

#Example

void OnUpdate(flecs::entity e, Engine &engine, float dt) override {
    auto &input = engine.GetInput();
    float speed = 5.0f;
    float vx = 0.0f, vz = 0.0f;
    if (input.IsKeyDown(GLFW_KEY_W)) vz -= speed;
    if (input.IsKeyDown(GLFW_KEY_S)) vz += speed;
    if (input.IsKeyDown(GLFW_KEY_A)) vx -= speed;
    if (input.IsKeyDown(GLFW_KEY_D)) vx += speed;
    engine.GetPhysicsWorld().SetLinearVelocity(e.id(), vx, 0.0f, vz);
}

#Integration Notes

• Input state is updated automatically each frame in Engine::BeginFrame()
• GLFW callbacks feed into Input state and publish events to the EventBus
• The editor camera consumes input directly; gameplay input is accessed through engine.GetInput() in C++ behaviors