1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
import * as THREE from 'https://unpkg.com/three@0.126.1/build/three.module.js'
import { OrbitControls } from 'https://unpkg.com/three@0.126.1/examples/jsm/controls/OrbitControls.js'
import { CSS2DRenderer, CSS2DObject } from 'https://unpkg.com/three@0.126.1/examples/jsm/renderers/CSS2DRenderer.js'
const SCALE = 10000
class SkirmishGrid {
scene = new THREE.Scene()
camera
controls
renderer
renderer2d
constructor({container, renderer, renderer2d}) {
this.container = container
this.renderer = renderer
this.renderer2d = renderer2d
const aspect = this.container.clientWidth / this.container.clientHeight
this.camera = new THREE.PerspectiveCamera(80, aspect, 0.1, 1000)
this.camera.position.set(8, 8, 8)
this.camera.lookAt(0, 0, 0)
this.controls = new OrbitControls(this.camera, this.renderer2d.domElement)
this.controls.minDistance = 2
this.controls.maxDistance = 30
}
add(obj) {
this.scene.add(obj)
}
draw() {
this.renderer.render(this.scene, this.camera)
this.renderer2d.render(this.scene, this.camera)
requestAnimationFrame(() => this.draw())
}
onresize() {
this.renderer.setSize(this.container.clientWidth, this.container.clientHeight)
this.renderer2d.setSize(this.container.clientWidth, this.container.clientHeight)
this.camera.aspect = this.container.clientWidth / this.container.clientHeight
this.camera.updateProjectionMatrix()
}
}
class Wreck {
domElement = document.createElement('div')
point = new THREE.Object3D()
killmail
constructor({killmail, position, icon}) {
const iconElement = document.importNode(icon, true)
const object2d = new CSS2DObject(this.domElement)
this.killmail = killmail
this.domElement.className = 'wreck'
this.domElement.appendChild(iconElement)
this.point.position.copy(position)
this.point.add(object2d)
this.domElement.onclick = () => window.open(`https://zkillboard.com/kill/${this.killmail.killmail_id}/`)
}
}
function loadWreckIcon() {
return fetch("wreck.svg")
.then(response => response.text())
.then(text => {
const parser = new window.DOMParser()
const svg = parser.parseFromString(text, "image/svg+xml")
return svg.documentElement
})
}
function processKillmails(grid, killmails, icon) {
let clusters = []
killmails.forEach(km => {
const pos = km.victim.position
km.victim.position = new THREE.Vector3(pos.x, pos.y, pos.z)
const vec3 = km.victim.position
let added = false
for (const cluster of clusters) {
if (cluster[0].victim.position.distanceTo(vec3) < 100 * SCALE) {
cluster.push(km)
added = true
break
}
}
if (!added) {
clusters.push([km])
}
})
let center = new THREE.Vector3()
let positions = clusters[0].map(km => km.victim.position)
positions.forEach(pos => center.add(new THREE.Vector3(pos.x, pos.y, pos.z)))
center.divideScalar(positions.length)
clusters[0].sort((a, b) => a.killmail_time.localeCompare(b.killmail_time))
let elements = []
clusters[0].forEach(killmail => {
const vec3 = killmail.victim.position
vec3.sub(center)
vec3.divideScalar(SCALE)
const wreck = new Wreck({position: vec3, killmail, icon})
grid.add(wreck.point)
elements.push(wreck.domElement)
})
const timeline = document.getElementById("timeline")
timeline.max = elements.length + 1
timeline.oninput = function () {
elements.slice(0, this.value).forEach(element => element.classList.add("killed"))
elements.slice(this.value, this.max).forEach(element => element.classList.remove("killed"))
}
}
function init() {
const container = document.getElementById("container")
const renderer = new THREE.WebGLRenderer({antialias: true})
const renderer2d = new CSS2DRenderer()
renderer.setSize(container.clientWidth, container.clientHeight)
renderer2d.setSize(container.clientWidth, container.clientHeight)
renderer2d.domElement.style.position = 'absolute'
renderer2d.domElement.style.top = '0px'
container.appendChild(renderer.domElement)
container.appendChild(renderer2d.domElement)
const grid = new SkirmishGrid({renderer, renderer2d, container})
const url = new URL(window.location.href)
let icon = loadWreckIcon()
fetch(url.searchParams.get("related") + ".json")
.then(response => response.json())
.then(killmails => {
const url = km => `https://esi.evetech.net/latest/killmails/${km.id}/${km.hash}/?datasource=tranquility`
const retrieve = km => fetch(url(km)).then(response => response.json())
return Promise.all(killmails.map(retrieve))
})
.then(killmails => {
icon.then(icon => processKillmails(grid, killmails, icon))
})
const helper = new THREE.GridHelper(50, 50)
grid.add(helper)
const loader = new THREE.TextureLoader()
loader.loadAsync("https://i.imgur.com/rDGOLFC.jpg") // TODO: Don't use imgur as CDN.
.then(skybox => {
const rt = new THREE.WebGLCubeRenderTarget(skybox.image.height)
rt.fromEquirectangularTexture(renderer, skybox)
grid.scene.background = rt
});
window.addEventListener('resize', () => grid.onresize())
grid.draw()
}
init()
|
