Module input_manager 

Input management system for ECS integration.

The InputManager resource provides a centralized interface for querying input state within the ECS. It tracks keyboard keys, mouse buttons, mouse position, and gamepad state across frames, enabling queries for:

• Current state (is pressed)
• Just pressed (pressed this frame, not last frame)
• Just released (released this frame, was pressed last frame)

Architecture

The InputManager sits between the platform layer (GLFW) and the game systems:

GLFW Events → InputHandler → InputManager → Game Systems
               (platform)     (ECS resource)   (queries)

Usage

Raw Input Queries

use goud_engine::ecs::{InputManager, Resource};
use glfw::Key;

// In your setup system:
world.insert_resource(InputManager::new());

// In a system:
fn player_movement_system(input: Res<InputManager>) {
    if input.key_pressed(Key::W) {
        // Move forward continuously while held
    }
    if input.key_just_pressed(Key::Space) {
        // Jump only once per press
    }
}

Action Mapping

Action mapping allows semantic names for input, supporting multiple bindings:

use goud_engine::ecs::{InputManager, InputBinding};
use glfw::Key;

let mut input = InputManager::new();

// Map "Jump" to Space, W key, or gamepad button 0
input.map_action("Jump", InputBinding::Key(Key::Space));
input.map_action("Jump", InputBinding::Key(Key::W));
input.map_action("Jump", InputBinding::GamepadButton { gamepad_id: 0, button: 0 });

// Query action state (returns true if ANY binding is pressed)
if input.action_pressed("Jump") {
    player.jump();
}

if input.action_just_pressed("Attack") {
    player.attack();
}

Frame Management

Call update() at the start of each frame to advance the input state:

fn input_update_system(mut input: ResMut<InputManager>) {
    input.update();
}

Structs

InputManager

Input management resource for ECS integration.

Enums

InputBinding

Represents a single input binding that can be mapped to an action.