2d-physics-engine/dist/core/InputManager.js

A lightweight, flexible 2D physics engine with ECS architecture, built with TypeScript

import { Vector2 } from '../math/Vector2';
export class InputManager {
    constructor() {
        Object.defineProperty(this, "keyStates", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: new Map()
        });
        Object.defineProperty(this, "mousePosition", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: new Vector2()
        });
        Object.defineProperty(this, "mouseButtons", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: new Map()
        });
        // Set up event listeners
        window.addEventListener('keydown', this.handleKeyDown.bind(this));
        window.addEventListener('keyup', this.handleKeyUp.bind(this));
        window.addEventListener('mousemove', this.handleMouseMove.bind(this));
        window.addEventListener('mousedown', this.handleMouseDown.bind(this));
        window.addEventListener('mouseup', this.handleMouseUp.bind(this));
    }
    update() {
        // Update wasPressed states
        this.keyStates.forEach((state) => (state.wasPressed = state.isPressed));
        this.mouseButtons.forEach((state) => (state.wasPressed = state.isPressed));
    }
    isKeyPressed(key) {
        return this.keyStates.get(key)?.isPressed || false;
    }
    isKeyJustPressed(key) {
        const state = this.keyStates.get(key);
        return state ? state.isPressed && !state.wasPressed : false;
    }
    isMouseButtonPressed(button) {
        return this.mouseButtons.get(button)?.isPressed || false;
    }
    isMouseButtonJustPressed(button) {
        return this.mouseButtons.get(button)?.wasPressed || false;
    }
    getMousePosition() {
        return this.mousePosition;
    }
    handleKeyDown(event) {
        this.keyStates.set(event.key, { isPressed: true, wasPressed: false });
    }
    handleKeyUp(event) {
        this.keyStates.set(event.key, { isPressed: false, wasPressed: true });
    }
    handleMouseMove(event) {
        this.mousePosition = new Vector2(event.clientX, event.clientY);
    }
    handleMouseDown(event) {
        this.mouseButtons.set(event.button, { isPressed: true, wasPressed: false });
    }
    handleMouseUp(event) {
        this.mouseButtons.set(event.button, { isPressed: false, wasPressed: true });
    }
}
//# sourceMappingURL=InputManager.js.map