Manually trigger keypress

Dima_Romanchuk · February 3, 2022, 3:43pm

hello
do u know how to trigger keypress event for specific key (e.g. key “c”), so it can pass this.app.keyboard.wasPressed(…)?

Leonidas · February 3, 2022, 8:44pm

Hi @Dima_Romanchuk,

I am not sure you can easily do that. You inspect how the pc.Keyboard class works here, and maybe you can manually fire a custom event:

github.com

playcanvas/engine/blob/d3d84301bf9463f0b3f606f238514381a2601713/src/input/keyboard.js

import { Debug } from '../core/debug.js';
import { EventHandler } from '../core/event-handler.js';

import { KeyboardEvent } from './keyboard-event.js';

// internal global keyboard events
const _keyboardEvent = new KeyboardEvent();

/**
 * Convert a browser keyboard event to a PlayCanvas keyboard event.
 *
 * @param {globalThis.KeyboardEvent} event - A browser keyboard event.
 * @returns {KeyboardEvent} A PlayCanvas keyboard event.
 * @ignore
 */
function makeKeyboardEvent(event) {
    _keyboardEvent.key = event.keyCode;
    _keyboardEvent.element = event.target;
    _keyboardEvent.event = event;
    return _keyboardEvent;

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You can even lookup more generic JavaScript solutions by googling something like this javascript trigger keypress. There are several articles coming up on that.

You can also rework your code and handle it your self, so your logic checks a more generic property instead of accessing directly the keyboard.wasPressed() method. This way you can set the property in more than one ways:

as a response to keyboard.wasPressed
as a response to a custom event you fire e.g. this.app.fire('keyboard:pressed:d')

Hope that helps.