let swapPoint = Date.now()
  , currentPoint = swapPoint
  , nFps = 0
  , fps = 0;

mp.events.add('render', () => {
    if (currentPoint - swapPoint <= 1000) {
        nFps++
        currentPoint = Date.now()
    } else {
        fps = nFps
        nFps = 0
        swapPoint = Date.now()
    }

    mp.game.graphics.drawText(fps.toFixed(0).toString(), [0.5, 0.5], {
        font: 4,
        color: [46, 204, 113, 255],
        scale: 0.5,
        outline: true
    });
});

// next code for test mousemove in browser

let countUpdateMouseMove = 0;

const BROWSER_TEST_CODE = `
window.addEventListener('mousemove', (e) => {
    mp.trigger('mousemove');
});
`;

mp.browsers.new(`data:text/html,<script>${BROWSER_TEST_CODE}</script>`);

mp.events.add('mousemove', () => {
    countUpdateMouseMove++;
});

mp.events.add('render', () => {
    mp.game.graphics.drawText(countUpdateMouseMove.toString(), [0.5, 0.55], {
        font: 4,
        color: [46, 204, 113, 255],
        scale: 0.5,
        outline: true
    });
});