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index.js
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index.js
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/* eslint-disable no-use-before-define */
/* eslint-disable import/extensions */
import * as THREE from './lib/three.module.js';
import { OrbitControls } from './lib/OrbitControls.js';
import Debugger from './lib/gameEngine/utils/Debugger.js';
import InputManager from './lib/gameEngine/utils/InputManager.js';
import globals from './lib/gameEngine/Globals.js';
import InfiniteGridHelper from './lib/InfiniteGridHelper.js';
import {GUI} from './lib/dat.gui.module.js';
// GameEngine stuff
import GameObjectManager from './lib/gameEngine/ecs/GameObjectManager.js';
import AudioManager from './lib/gameEngine/utils/AudioManager.js';
import * as Utils from './lib/gameEngine/utils/Utils.js';
// Project specific stuff
//#region Game engine stuff
// Initial setup of scene, camera and lights
function initialise() {
// canvas setup
const canvas = document.querySelector('canvas');
globals.canvas = canvas;
globals.renderer = new THREE.WebGLRenderer({
canvas,
antialias: true,
});
globals.renderer.shadowMap.enabled = true;
globals.renderer.shadowMap.type = THREE.PCFSoftShadowMap;
globals.renderer.setPixelRatio(window.devicePixelRatio);
globals.renderer.setSize(window.innerWidth, window.innerHeight, true);
window.addEventListener('resize', () => {
onCanvasResize();
}, false)
// scene
const scene = new THREE.Scene();
scene.background = new THREE.Color(globals.options.sceneBg);
globals.scene = scene;
// cameras
// adding to scene so nested child transforms are visible
globals.gameCamera = getOrthCamera();
globals.editorCamera = getPerspectiveCamera();
globals.scene.add(globals.gameCamera );
globals.scene.add(globals.editorCamera );
globals.mainCamera = globals.gameCamera;
globals.gameCameraHelper = new THREE.CameraHelper(globals.gameCamera);
globals.gameCameraHelper.name = 'gameCameraHelper';
globals.gameCameraHelper.visible = globals.options.enableGameCameraHelper;
globals.scene.add(globals.gameCameraHelper);
// lights
function addLight(...pos) {
const color = 0xffffff;
const intensity = 0.5;
const light = new THREE.DirectionalLight(color, intensity);
light.position.set(...pos);
light.target.position.set(0, 0, 0);
light.castShadow = true;
light.shadow.bias = -0.001;
light.shadow.mapSize.width = 2048;
light.shadow.mapSize.height = 2048;
light.shadow.camera.near = 0.1;
light.shadow.camera.far = 500.0;
light.shadow.camera.near = 0.5;
light.shadow.camera.far = 500.0;
light.shadow.camera.left = 100;
light.shadow.camera.right = -100;
light.shadow.camera.top = 100;
light.shadow.camera.bottom = -100;
scene.add(light);
scene.add(light.target);
}
addLight(5, 5, 2);
addLight(-5, 5, 5);
}
function getPerspectiveCamera(camPos = new THREE.Vector3(3, 3, 3)){
const fov = 60;
const aspect = window.innerWidth / window.innerHeight;
const near = 0.1;
const far = 1000;
const camera = new THREE.PerspectiveCamera(fov, aspect, near, far);
camera.position.set(camPos.x, camPos.y, camPos.z);
return camera;
}
function getOrthCamera(camPos = new THREE.Vector3(3, 3, 3), orthoSize = 8){
globals.orthoSize = orthoSize;
const aspect = window.innerWidth / window.innerHeight;
const near = 0.1;
const far = 1000;
const camera = new THREE.OrthographicCamera(
globals.orthoSize * aspect / - 2,
globals.orthoSize * aspect / 2,
globals.orthoSize / 2,
globals.orthoSize / - 2,
near,
far );
camera.position.set(camPos.x, camPos.y, camPos.z);
return camera;
}
function updateOrthCamera(camera){
const aspect = window.innerWidth / window.innerHeight;
camera.left = globals.orthoSize * aspect / - 2;
camera.right = globals.orthoSize * aspect / 2;
camera.top = globals.orthoSize / 2;
camera.bottom = globals.orthoSize / - 2;
}
function onCanvasResize() {
if(globals.mainCamera.isOrthographicCamera){
updateOrthCamera(globals.mainCamera);
}
if(globals.mainCamera.isPerspectiveCamera){
globals.mainCamera.aspect = window.innerWidth / window.innerHeight;
}
globals.mainCamera.updateProjectionMatrix();
globals.renderer.setSize(window.innerWidth, window.innerHeight, false);
}
function setupGui(){
const gui = new GUI({width: 250});
var g1 = gui.addFolder('Engine options');
g1.add( globals.options, 'enableOrbitControls').name('enable orbit controls');
g1.add( globals.options, 'activeCamera', [ 'editor', 'game' ] );
g1.addColor( globals.options, 'sceneBg');
g1.add( globals.options, 'enableGameCameraHelper');
g1.add( globals.options, 'debugStats');
g1.open();
if(globals.gameOptions != undefined){
var f1 = gui.addFolder('Game options');
// f1.add(globals.gameOptions.targetManagerOptions, 'speed').min(0).max(2).step(0.05);
// f1.add(globals.gameOptions.targetManagerOptions, 'rotRate').min(0).max(0.5).step(0.01);
f1.open();
}
gui.open();
}
function updateOptions(){
// camera stuff
switch(globals.options.activeCamera){
case 'editor':
globals.mainCamera = globals.editorCamera;
break;
case 'game':
globals.mainCamera = globals.gameCamera;
break;
}
globals.gameCameraHelper.visible = globals.options.enableGameCameraHelper;
// controls
globals.orbitControls.enableZoom = globals.options.enableOrbitControls;
globals.orbitControls.enableRotate = globals.options.enableOrbitControls;
globals.orbitControls.enablePan = globals.options.enableOrbitControls;
globals.orbitControls.object = globals.mainCamera;
globals.scene.background = new THREE.Color(globals.options.sceneBg);
if(globals.options.debugStats){
document.getElementById("debugWrapper").style.visibility = "visible";
}
else{
document.getElementById("debugWrapper").style.visibility = "hidden";
}
}
// Main render loop
function render(curTimeMilliSec) {
// timing
globals.timeMilliSec = curTimeMilliSec;
if (globals.lastTimeMilliSec === undefined) {
globals.lastTimeMilliSec = curTimeMilliSec;
}
globals.deltaTimeMillSec = curTimeMilliSec - globals.lastTimeMilliSec;
globals.lastTimeMilliSec = curTimeMilliSec;
updateOptions();
//TODO: rename to mainCamera helper?
// include in a debug/editor object
globals.gameCameraHelper.update();
globals.debugger.update();
globals.gameObjectManager.update();
globals.renderer.render(globals.scene, globals.mainCamera);
requestAnimationFrame(render);
}
function setupGameObjects() {
// audio
globals.audioManager = new AudioManager();
// grid
const grid = new InfiniteGridHelper(0.5, 100, new THREE.Color('white'), 100);
grid.name = 'EditorGrid';
globals.scene.add(grid);
// default orbit controls
globals.orbitControls = new OrbitControls(
globals.mainCamera,
globals.renderer.domElement,
);
globals.orbitControls.target.set(3, 3, 0);
globals.orbitControls.update();
// debug axes
const axes = new THREE.AxesHelper(5);
axes.name = 'EditorAxes';
globals.scene.add(axes);
// initialise game objects
globals.inputManager = new InputManager(globals.renderer.domElement);
globals.gameObjectManager = new GameObjectManager();
globals.debugger = new Debugger(globals, document.getElementById('debugWrapper'));
// dat gui
setupGui();
}
//#endregion
initialise();
setupGameObjects();
requestAnimationFrame(render);