three.js/examples/misc_controls_pointerlock.html at dev · mrdoob/three.js · GitHub

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<!DOCTYPE html>

<head>

<title>three.js - pointerlock controls</title>

<style>

#blocker {

position: absolute;

width: 100%;

height: 100%;

background-color: rgba(0,0,0,0.5);

}

#instructions {

width: 100%;

height: 100%;

display: flex;

flex-direction: column;

justify-content: center;

align-items: center;

text-align: center;

font-size: 14px;

cursor: pointer;

}

</style>

</head>

<body>

Click to play

</p>

<p>

Move: WASD<br/>

Jump: SPACE<br/>

Look: MOUSE

</p>

</div>

{

"imports": {

"three": "../build/three.module.js",

"three/addons/": "./jsm/"

}

</script>

import * as THREE from 'three';

import { PointerLockControls } from 'three/addons/controls/PointerLockControls.js';

let camera, scene, renderer, controls;

const objects = [];

let raycaster;

let moveForward = false;

let moveBackward = false;

let moveLeft = false;

let moveRight = false;

let canJump = false;

let prevTime = performance.now();

const velocity = new THREE.Vector3();

const direction = new THREE.Vector3();

const vertex = new THREE.Vector3();

const color = new THREE.Color();

init();

function init() {

camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 1, 1000 );

camera.position.y = 10;

scene = new THREE.Scene();

scene.background = new THREE.Color( 0xffffff );

scene.fog = new THREE.Fog( 0xffffff, 0, 750 );

const light = new THREE.HemisphereLight( 0xeeeeff, 0x777788, 2.5 );

light.position.set( 0.5, 1, 0.75 );

scene.add( light );

controls = new PointerLockControls( camera, document.body );

const blocker = document.getElementById( 'blocker' );

const instructions = document.getElementById( 'instructions' );

instructions.addEventListener( 'click', function () {

controls.lock();

} );

controls.addEventListener( 'lock', function () {

instructions.style.display = 'none';

blocker.style.display = 'none';

} );

controls.addEventListener( 'unlock', function () {

blocker.style.display = 'block';

instructions.style.display = '';

} );

scene.add( controls.object );

const onKeyDown = function ( event ) {

switch ( event.code ) {

case 'ArrowUp':

case 'KeyW':

moveForward = true;

break;

case 'ArrowLeft':

case 'KeyA':

moveLeft = true;

break;

case 'ArrowDown':

case 'KeyS':

moveBackward = true;

break;

case 'ArrowRight':

case 'KeyD':

moveRight = true;

break;

case 'Space':

if ( canJump === true ) velocity.y += 350;

canJump = false;

break;

}

};

const onKeyUp = function ( event ) {

switch ( event.code ) {

case 'ArrowUp':

case 'KeyW':

moveForward = false;

break;

case 'ArrowLeft':

case 'KeyA':

moveLeft = false;

break;

case 'ArrowDown':

case 'KeyS':

moveBackward = false;

break;

case 'ArrowRight':

case 'KeyD':

moveRight = false;

break;

}

};

document.addEventListener( 'keydown', onKeyDown );

document.addEventListener( 'keyup', onKeyUp );

raycaster = new THREE.Raycaster( new THREE.Vector3(), new THREE.Vector3( 0, - 1, 0 ), 0, 10 );

// floor

let floorGeometry = new THREE.PlaneGeometry( 2000, 2000, 100, 100 );

floorGeometry.rotateX( - Math.PI / 2 );

// vertex displacement

let position = floorGeometry.attributes.position;

for ( let i = 0, l = position.count; i < l; i ++ ) {

vertex.fromBufferAttribute( position, i );

vertex.x += Math.random() * 20 - 10;

vertex.y += Math.random() * 2;

vertex.z += Math.random() * 20 - 10;

position.setXYZ( i, vertex.x, vertex.y, vertex.z );

}

floorGeometry = floorGeometry.toNonIndexed(); // ensure each face has unique vertices

position = floorGeometry.attributes.position;

const colorsFloor = [];

for ( let i = 0, l = position.count; i < l; i ++ ) {

color.setHSL( Math.random() * 0.3 + 0.5, 0.75, Math.random() * 0.25 + 0.75, THREE.SRGBColorSpace );

colorsFloor.push( color.r, color.g, color.b );

}

floorGeometry.setAttribute( 'color', new THREE.Float32BufferAttribute( colorsFloor, 3 ) );

const floorMaterial = new THREE.MeshBasicMaterial( { vertexColors: true } );

const floor = new THREE.Mesh( floorGeometry, floorMaterial );

scene.add( floor );

// objects

const boxGeometry = new THREE.BoxGeometry( 20, 20, 20 ).toNonIndexed();

position = boxGeometry.attributes.position;

const colorsBox = [];

for ( let i = 0, l = position.count; i < l; i ++ ) {

color.setHSL( Math.random() * 0.3 + 0.5, 0.75, Math.random() * 0.25 + 0.75, THREE.SRGBColorSpace );

colorsBox.push( color.r, color.g, color.b );

}

boxGeometry.setAttribute( 'color', new THREE.Float32BufferAttribute( colorsBox, 3 ) );

for ( let i = 0; i < 500; i ++ ) {

const boxMaterial = new THREE.MeshPhongMaterial( { specular: 0xffffff, flatShading: true, vertexColors: true } );

boxMaterial.color.setHSL( Math.random() * 0.2 + 0.5, 0.75, Math.random() * 0.25 + 0.75, THREE.SRGBColorSpace );

const box = new THREE.Mesh( boxGeometry, boxMaterial );

box.position.x = Math.floor( Math.random() * 20 - 10 ) * 20;

box.position.y = Math.floor( Math.random() * 20 ) * 20 + 10;

box.position.z = Math.floor( Math.random() * 20 - 10 ) * 20;

scene.add( box );

objects.push( box );

}

renderer = new THREE.WebGLRenderer( { antialias: true } );

renderer.setPixelRatio( window.devicePixelRatio );

renderer.setSize( window.innerWidth, window.innerHeight );

renderer.setAnimationLoop( animate );

document.body.appendChild( renderer.domElement );

window.addEventListener( 'resize', onWindowResize );

}

function onWindowResize() {

camera.aspect = window.innerWidth / window.innerHeight;

camera.updateProjectionMatrix();

renderer.setSize( window.innerWidth, window.innerHeight );

}

function animate() {

const time = performance.now();

if ( controls.isLocked === true ) {

raycaster.ray.origin.copy( controls.object.position );

raycaster.ray.origin.y -= 10;

const intersections = raycaster.intersectObjects( objects, false );

const onObject = intersections.length > 0;

const delta = ( time - prevTime ) / 1000;

velocity.x -= velocity.x * 10.0 * delta;

velocity.z -= velocity.z * 10.0 * delta;

velocity.y -= 9.8 * 100.0 * delta; // 100.0 = mass

direction.z = Number( moveForward ) - Number( moveBackward );

direction.x = Number( moveRight ) - Number( moveLeft );

direction.normalize(); // this ensures consistent movements in all directions

if ( moveForward || moveBackward ) velocity.z -= direction.z * 400.0 * delta;

if ( moveLeft || moveRight ) velocity.x -= direction.x * 400.0 * delta;

if ( onObject === true ) {

velocity.y = Math.max( 0, velocity.y );

canJump = true;

}

controls.moveRight( - velocity.x * delta );

controls.moveForward( - velocity.z * delta );

controls.object.position.y += ( velocity.y * delta ); // new behavior

if ( controls.object.position.y < 10 ) {

velocity.y = 0;

controls.object.position.y = 10;

canJump = true;

}

prevTime = time;

renderer.render( scene, camera );

}

</script>

</body>

</html>

three.js/examples/misc_controls_pointerlock.html at dev · mrdoob/three.js · GitHub

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