import { initUiListeners, setupParamPanel, tick } from './game';
import { initWorldGl, makeWorld } from './world';
import * as se3 from './se3';

async function main() {
    const canvas = document.querySelector('#game');
    // adjust canvas aspect ratio to that of the screen
    canvas.height = screen.height / screen.width * canvas.width;
    const gl = canvas.getContext('webgl');

    if (gl === null) {
        console.error('webgl not available')
        return;
    }

    const params = {
        projMatrix: se3.perspective(Math.PI / 3, canvas.clientWidth / canvas.clientHeight, 0.1, 100.0),
        camera: {
            position: [0.0, 70.5, 0.0],
            orientation: [0.0, Math.PI, 0.0],
            velocity: [0, 0, 0],
        },
        keys: new Set(),
        lightDirection: [-0.2, -0.5, 0.4],
        ambiantLight: 0.7,
        blockSelectDistance: 8,
        flying: false,
        isOnGround: false,
        world: makeWorld(),
        worldGl: await initWorldGl(gl),
    }

    setupParamPanel(params);
    initUiListeners(params, canvas);

    requestAnimationFrame(time => tick(time, gl, params));
}

window.onload = main;