375 lines
12 KiB
JavaScript
375 lines
12 KiB
JavaScript
import * as THREE from 'three'
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import { Tween } from '@tweenjs/tween.js'
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const global = (0,eval)('this')
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const scene = new THREE.Scene()
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const raycaster = new THREE.Raycaster()
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const camera = new THREE.PerspectiveCamera(30, window.innerWidth / window.innerHeight, 0.1, 1000)
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const renderer = new THREE.WebGLRenderer()
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renderer.setSize(window.innerWidth, window.innerHeight)
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renderer.setAnimationLoop(render)
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camera.position.set(5, -12, 10)
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camera.rotation.set((60 / 180) * Math.PI, 0, 0)
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camera.layers.enable(1)
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const entityMaterial = new THREE.MeshToonMaterial({ color: 0xffffff })
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const projectileMaterial = new THREE.MeshToonMaterial({ color: 0xff00ff })
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const terrainMaterial = new THREE.MeshToonMaterial({ color: 0xffd700 })
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const minimapCamera = new THREE.OrthographicCamera(-10, 10, 10, -10)
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const minimapRenderer = new THREE.WebGLRenderer()
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minimapRenderer.setSize(300, 300)
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minimapRenderer.setAnimationLoop(minimapRender)
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minimapCamera.position.set(10, 10, 10)
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const entities = {}
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const projectiles = {}
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const positionTweens = {}
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const terrains = {}
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const geometry = new THREE.PlaneGeometry(0, 0)
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const material = new THREE.MeshToonMaterial({ color: 0x115011 })
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const ground = new THREE.Mesh(geometry, material)
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scene.add(ground)
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const ambientLight = new THREE.AmbientLight(0x404040)
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scene.add(ambientLight)
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const directionalLight = new THREE.DirectionalLight(0xffffff, 2.5)
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directionalLight.position.set(-0.3, 0.1, 1)
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directionalLight.power = 3000
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scene.add(directionalLight)
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global.THREE = THREE
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global.renderer = renderer
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global.camera = camera
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global.scene = scene
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const tweenDuration = 33
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const keysDown = {}
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const mouse = {}
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function render() {
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cameraMovement()
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Object.values(positionTweens).forEach((tween) => tween.update()) // TODO: clean up tweens
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renderer.render(scene, camera)
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}
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function minimapRender() {
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minimapRenderer.render(scene, minimapCamera)
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}
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var cameraLocked = true
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function followCamera() {
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const entity = entities[playerId]
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if (entity == null) { return }
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const offsetX = 0
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const offsetY = -16.5
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const distanceX = Math.abs((entity.position.x + offsetX) - camera.position.x)
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const distanceY = Math.abs((entity.position.y + offsetY) - camera.position.y)
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if (distanceX > 0.01) {
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if (entity.position.x + offsetX > camera.position.x) {
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camera.position.x += cameraSpeed * distanceX
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}
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if (entity.position.x + offsetX < camera.position.x) {
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camera.position.x -= cameraSpeed * distanceX
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}
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}
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else if (distanceX != 0) {
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camera.position.x = entity.position.x + offsetX
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}
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if (distanceY > 0.01) {
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if (entity.position.y + offsetY > camera.position.y) {
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camera.position.y += cameraSpeed * distanceY
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}
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if (entity.position.y + offsetY < camera.position.y) {
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camera.position.y -= cameraSpeed * distanceY
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}
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}
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else if (distanceY != 0) {
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camera.position.y = entity.position.y + offsetY
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}
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}
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const cameraSpeed = 0.03
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function cameraMovement() {
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if (cameraLocked) {
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followCamera()
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return
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}
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if (keysDown.ArrowLeft) { camera.position.x -= cameraSpeed }
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else if (keysDown.ArrowRight) { camera.position.x += cameraSpeed }
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if (keysDown.ArrowUp) { camera.position.y += cameraSpeed }
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else if (keysDown.ArrowDown) { camera.position.y -= cameraSpeed }
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if (keysDown.Space) {
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camera.position.set(entities['1'].position.x, entities['1'].position.y - 17, 10)
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}
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}
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function raycastToGround() {
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const canvas = renderer.domElement
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raycaster.setFromCamera(new THREE.Vector2((mouse.x / canvas.clientWidth) * 2 - 1, (mouse.y / canvas.clientHeight) * -2 + 1), camera)
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const intersect = raycaster.intersectObject(ground).at(0)?.point
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if (intersect != null) {
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return {
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x: Math.round(intersect.x * 100),
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y: Math.round(intersect.y * 100),
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}
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}
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return null
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}
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var websocket = null
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global.websocket = null
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var timerId = null
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var playerId = null
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function connectWebSocket() {
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websocket = new WebSocket(`ws://${window.location.hostname}:1280/ws`)
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global.websocket = websocket
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websocket.onerror = () => websocket.close()
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websocket.onopen = () => {
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document.getElementById('connection').innerHTML = 'open'
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clearInterval(timerId)
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}
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websocket.onclose = () => {
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websocket = null
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document.getElementById('connection').innerHTML = 'closed'
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timerId = setInterval(() => {
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if (websocket == null) {
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connectWebSocket()
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}
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}, 2000)
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}
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websocket.onmessage = (event) => {
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let state = JSON.parse(event.data)
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if (state.width != null && state.height != null && (ground.geometry.attributes.width != state.width || ground.geometry.attributes.height != state.height)) {
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ground.geometry = new THREE.PlaneGeometry(state.width / 100, state.height / 100)
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ground.position.set(state.width / 200, state.height / 200, 0)
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}
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for (const e of state.entities ?? []) {
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let entity
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if (e.id in entities) {
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entity = entities[e.id]
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}
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else {
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entity = new THREE.Mesh(new THREE.CylinderGeometry(e.radius / 100, e.radius / 100, e.radius / 50), entityMaterial)
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entity.rotation.x = Math.PI / 2
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entity.userData.type = 'entity'
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entity.userData.id = e.id
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entity.position.set(e.position.x / 100, e.position.y / 100, e.radius / 100)
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scene.add(entity)
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// TODO: player model out of basic geometries
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const hpMargin = 0.4
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const maxHp = new THREE.Sprite(new THREE.SpriteMaterial({ color: 0xd03333 }))
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maxHp.position.set(0, (e.radius / 100) + hpMargin, 0)
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maxHp.scale.set(1.5, 0.2, 1)
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maxHp.layers.set(1)
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entity.add(maxHp)
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const hp = new THREE.Sprite(new THREE.SpriteMaterial({ color: 0x77ff77 }))
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hp.position.set(0, 0, 0)
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hp.scale.set(1, 1, 1)
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hp.layers.set(1)
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maxHp.add(hp)
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entities[e.id] = entity
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}
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positionTweens[entity.id] = new Tween(entity.position).to({ x: e.position.x / 100, y: e.position.y / 100, z: e.radius / 100 }, tweenDuration).start()
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const hp = entity.children.at(0).children.at(0)
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const percentageHp = e.health / e.maxHealth
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hp.scale.x = percentageHp
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hp.position.x = -(1 - percentageHp) / 2
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}
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for (const p of Object.values(projectiles)) {
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p.userData.flaggedForRemoval = true
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}
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for (const p of state.projectiles ?? []) {
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let projectile
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if (p.id in projectiles) {
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projectile = projectiles[p.id]
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}
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else {
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projectile = new THREE.Mesh(new THREE.SphereGeometry(p.radius / 100), projectileMaterial)
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projectile.userData.type = 'projectile'
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projectile.userData.id = p.id
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projectile.position.set(p.position.x / 100, p.position.y / 100, p.visualHeight / 100)
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scene.add(projectile)
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projectiles[p.id] = projectile
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}
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projectile.userData.flaggedForRemoval = false
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positionTweens[projectile.id] = new Tween(projectile.position).to({ x: p.position.x / 100, y: p.position.y / 100, z: p.visualHeight / 100 }, tweenDuration).start()
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}
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for (const p of Object.values(projectiles)) {
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if (p.userData.flaggedForRemoval) {
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scene.remove(p)
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delete projectiles[p.userData.id]
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delete positionTweens[p.userData.id]
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}
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}
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for (const t of state.terrains ?? []) {
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let terrain
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if (t.id in terrains) {
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terrain = terrains[t.id]
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}
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else {
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const vertices = t.relativeVertices
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const shape = new THREE.Shape()
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shape.moveTo(vertices.at(0).x / 100, vertices.at(0).y / 100)
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vertices.slice(1).forEach((v) => shape.lineTo(v.x / 100, v.y / 100))
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terrain = new THREE.Mesh(new THREE.ExtrudeGeometry(shape, { bevelEnabled: false, depth: 0.5 }), terrainMaterial)
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terrain.userData.type = 'terrain'
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terrain.userData.id = t.id
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scene.add(terrain)
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terrains[t.id] = terrain
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}
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terrain.position.set(t.position.x / 100, t.position.y / 100, 0)
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}
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if (playerId != null) {
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const player = state.entities.find((e) => e.id == playerId)
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if (player != null) {
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for (let abilityIndex = 0; abilityIndex < 4; abilityIndex++) {
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if (player.abilities[abilityIndex] != null) {
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const ability = player.abilities[abilityIndex]
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const lastCast = player.cooldowns[ability.id] ?? -99999
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const cooldownDuration = (ability.cooldown * state.tickRate) ?? 0
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const remainingCooldown = (lastCast + cooldownDuration) - state.currentTick
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let cssPercentage = '100%'
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let text = ''
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if (remainingCooldown > 0) {
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const cooldownPercentage = 1 - (remainingCooldown / cooldownDuration)
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cssPercentage = `${Math.round(100 * cooldownPercentage)}%`
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if (remainingCooldown / state.tickRate <= 5) {
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text = `${(Math.round(10 * remainingCooldown / state.tickRate) / 10).toFixed(1)}`
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}
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else {
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text = `${Math.round(remainingCooldown / state.tickRate)}`
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}
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}
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document.getElementById(`ability-${abilityIndex}-cooldown`).style.clipPath = `polygon(0 ${cssPercentage}, 100% ${cssPercentage}, 100% 100%, 0 100%)`
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document.getElementById(`ability-${abilityIndex}-cooldown-text`).innerHTML = text
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}
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}
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}
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}
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document.getElementById('state').innerHTML = JSON.stringify(state, null, 2)
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}
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}
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window.addEventListener('load', () => {
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const params = Object.fromEntries(new URLSearchParams(window.location.search).entries())
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playerId = params.id
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if (playerId == null) {
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playerId = prompt('Player ID:')
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}
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connectWebSocket()
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const canvas = renderer.domElement
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canvas.classList.add('canvas')
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canvas.addEventListener('mousedown', (event) => {
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const intersect = raycastToGround()
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if (intersect != null) {
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const { x, y } = intersect
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if (event.button == 0) {
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websocket.send(JSON.stringify({ action: 'cast', slot: 0, id: playerId, x, y }))
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}
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if (event.button == 2) {
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websocket.send(JSON.stringify({ action: 'move', id: playerId, x, y }))
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}
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}
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})
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window.addEventListener('keydown', (event) => {
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const intersect = raycastToGround()
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if (intersect != null) {
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const { x, y } = intersect
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if (event.code == 'KeyQ') {
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websocket.send(JSON.stringify({ action: 'cast', slot: 1, id: playerId, x, y }))
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}
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if (event.code == 'KeyW') {
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websocket.send(JSON.stringify({ action: 'cast', slot: 2, id: playerId, x, y }))
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}
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if (event.code == 'KeyE') {
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websocket.send(JSON.stringify({ action: 'cast', slot: 3, id: playerId, x, y }))
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}
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if (event.code == 'KeyD') {
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websocket.send(JSON.stringify({ action: 'teleport', id: playerId, x, y }))
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}
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if (event.code == 'KeyF') {
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websocket.send(JSON.stringify({ action: 'teleport', id: playerId, x, y }))
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}
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}
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})
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document.addEventListener('wheel', (event) => {
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if (event.deltaY < 0) {
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camera.zoom += 0.2
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if (camera.zoom > 3) {
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camera.zoom = 3
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}
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camera.updateProjectionMatrix()
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}
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if (event.deltaY > 0) {
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camera.zoom -= 0.2
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if (camera.zoom < 1) {
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camera.zoom = 1
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}
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camera.updateProjectionMatrix()
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}
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})
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window.addEventListener('resize', (event) => {
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camera.aspect = window.innerWidth / window.innerHeight
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camera.updateProjectionMatrix()
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renderer.setSize(window.innerWidth, window.innerHeight)
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})
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document.addEventListener('contextmenu', (event) => event.preventDefault())
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window.addEventListener('keydown', (event) => keysDown[event.code] = true)
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window.addEventListener('keyup', (event) => keysDown[event.code] = false)
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window.addEventListener('keydown', (event) => {
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if (event.code == 'Space') {
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cameraLocked = !cameraLocked
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}
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})
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window.addEventListener('mousemove', (event) => {
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mouse.x = event.clientX
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mouse.y = event.clientY
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})
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document.body.appendChild(canvas)
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const minimap = minimapRenderer.domElement
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minimap.classList.add('minimap')
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document.body.appendChild(minimap)
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})
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