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
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
var GL = null;
var VERTS = null;
var IDXS = null;
var ATTRIB_VERTEX = null;
var ATTRIB_TEXCOORD = null;
var UNIFORM_PROJECTION = null;
var UNIFORM_VIEW = null;
var UNIFORM_POSITION = null;
var CUBE_ROTATION = 0.0;
function showContents() {
let elem = document.getElementById("contents");
if (elem) {
elem.classList.remove("invisible");
elem.classList.add("contents-anim-unfold");
let timeout = 500;
for (let c of elem.children) {
setTimeout(
() => c.classList.add("opaque"),
timeout
);
timeout += 200;
}
}
}
function showError() {
let elem = document.getElementById("error");
if (elem) {
elem.classList.remove("invisible");
elem.classList.add("error-anim-unfold");
let timeout = 500;
for (let c of elem.children) {
setTimeout(
() => c.classList.add("opaque"),
timeout
);
timeout += 200;
}
}
}
function scaleName() {
let elem = document.getElementById("name");
if (elem && elem.firstElementChild) {
elem.firstElementChild.style = `transform: scale(1, 1)`;
let { width: pw, height: ph } = elem.getBoundingClientRect();
let { width: cw, height: ch } = elem.firstElementChild.getBoundingClientRect();
elem.firstElementChild.style = `transform: scale(${pw / cw}, ${ph / ch})`;
}
}
function setName(nm) {
let elem = document.getElementById("name");
if (elem && elem.firstElementChild) {
elem.firstElementChild.innerText = nm
scaleName();
new ResizeObserver(scaleName).observe(elem);
}
}
function uploadCube(gl) {
const verts = GL.createBuffer();
GL.bindBuffer(GL.ARRAY_BUFFER, verts);
const vertdata = [
// front
-0.5, -0.5, -0.5, 0, 0,
+0.5, -0.5, -0.5, 1.0, 0,
+0.5, +0.5, -0.5, 1.0, 1.0,
-0.5, +0.5, -0.5, 0, 1.0,
// right
+0.5, -0.5, -0.5, 0, 0,
+0.5, -0.5, +0.5, 1.0, 0,
+0.5, +0.5, +0.5, 1.0, 1.0,
+0.5, +0.5, -0.5, 0, 1.0,
// left
-0.5, -0.5, +0.5, 0, 0,
-0.5, -0.5, -0.5, 1.0, 0,
-0.5, +0.5, -0.5, 1.0, 1.0,
-0.5, +0.5, +0.5, 0, 1.0,
// top
-0.5, -0.5, +0.5, 0, 0,
+0.5, -0.5, +0.5, 1.0, 0,
+0.5, -0.5, -0.5, 1.0, 1.0,
-0.5, -0.5, -0.5, 0, 1.0,
// bottom
-0.5, +0.5, -0.5, 0, 0,
+0.5, +0.5, -0.5, 1.0, 0,
+0.5, +0.5, +0.5, 1.0, 1.0,
-0.5, +0.5, +0.5, 0, 1.0,
// back
+0.5, -0.5, +0.5, 0, 0,
-0.5, -0.5, +0.5, 1.0, 0,
-0.5, +0.5, +0.5, 1.0, 1.0,
+0.5, +0.5, +0.5, 0, 1.0
];
GL.bufferData(GL.ARRAY_BUFFER, new Float32Array(vertdata), GL.STATIC_DRAW);
const quadidx = (p0, p1, p2, p3) => [p0, p1, p2, p2, p3, p0];
const idxs = GL.createBuffer();
GL.bindBuffer(GL.ELEMENT_ARRAY_BUFFER, idxs);
const idxdata = [
quadidx(0, 1, 2, 3), // front
quadidx(4, 5, 6, 7), // right
quadidx(8, 9, 10, 11), // left
quadidx(12, 13, 14, 15), // top
quadidx(16, 17, 18, 19), // bottom
quadidx(20, 21, 22, 23) // back
].flat();
GL.bufferData(GL.ELEMENT_ARRAY_BUFFER, new Uint16Array(idxdata), GL.STATIC_DRAW);
return { verts: verts, idxs: idxs };
}
function uploadShader(type, source) {
const shader = GL.createShader(type);
GL.shaderSource(shader, source);
GL.compileShader(shader);
if (!GL.getShaderParameter(shader, GL.COMPILE_STATUS)) {
alert(`shader compilation error: ${GL.getShaderInfoLog(shader)}`);
GL.deleteShader(shader);
return null;
}
return shader;
}
function uploadImage(url) {
const tex = GL.createTexture();
GL.bindTexture(GL.TEXTURE_2D, tex);
GL.texImage2D(GL.TEXTURE_2D, 0, GL.RGBA, 1, 1, 0, GL.RGBA, GL.UNSIGNED_BYTE, new Uint8Array([0, 0, 0, 1.0]));
const img = new Image();
img.onload = () => {
GL.bindTexture(GL.TEXTURE_2D, tex);
GL.texImage2D(GL.TEXTURE_2D, 0, GL.RGBA, GL.RGBA, GL.UNSIGNED_BYTE, img);
GL.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_MIN_FILTER, GL.NEAREST);
GL.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_MAG_FILTER, GL.NEAREST);
GL.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_WRAP_S, GL.CLAMP_TO_EDGE);
GL.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_WRAP_T, GL.CLAMP_TO_EDGE);
};
img.src = url;
return tex;
}
function initGL() {
const canvas = document.getElementById("canvas");
GL = canvas.getContext("webgl");
console.log(GL);
if (!GL) return;
console.log("initialized opengl");
GL.clearColor(1.0, 0.0, 0.0, 1.0);
GL.clearDepth(1.0);
GL.enable(GL.DEPTH_TEST);
GL.clear(GL.COLOR_BUFFER_BIT | GL.DEPTH_BUFFER_BIT);
const vertsrc = `
attribute vec3 vertex;
attribute vec2 texcoord;
uniform mat4 view;
uniform mat4 position;
uniform mat4 projection;
varying highp vec2 vertex_texcoord;
void main(void) {
gl_Position = projection * view * position * vec4(vertex, 1.0);
vertex_texcoord = texcoord;
}
`;
const fragsrc = `
varying highp vec2 vertex_texcoord;
uniform sampler2D texture_data;
void main(void) {
gl_FragColor = texture2D(texture_data, vertex_texcoord);
gl_FragColor.a = 1.0;
}
`;
const vshader = uploadShader(GL.VERTEX_SHADER, vertsrc);
const fshader = uploadShader(GL.FRAGMENT_SHADER, fragsrc);
const prog = GL.createProgram();
GL.attachShader(prog, vshader);
GL.attachShader(prog, fshader);
GL.linkProgram(prog);
if (!GL.getProgramParameter(prog, GL.LINK_STATUS)) {
alert(`shader linking error: ${gl.getProgramInfoLog(prog)}`);
return null;
}
GL.useProgram(prog);
ATTRIB_VERTEX = GL.getAttribLocation(prog, "vertex");
ATTRIB_TEXCOORD = GL.getAttribLocation(prog, "texcoord");
UNIFORM_PROJECTION = GL.getUniformLocation(prog, "projection");
UNIFORM_VIEW = GL.getUniformLocation(prog, "view");
UNIFORM_POSITION = GL.getUniformLocation(prog, "position");
const cube = uploadCube();
VERTS = cube.verts;
IDXS = cube.idxs;
requestAnimationFrame(render);
}
function render() {
CUBE_ROTATION += 0.01;
CUBE_ROTATION %= 2.0 * Math.PI;
const projection = mat4.create();
mat4.perspective(projection, Math.PI / 4.0, GL.canvas.clientWidth / GL.canvas.clientHeight, 0.1, 100.0);
const view = mat4.create();
mat4.lookAt(view, [0.0, 0.0, -5.0], [0.0, 0.0, 0.0], [0.0, 1.0, 0.0]);
const position = mat4.create();
mat4.rotateX(position, position, Math.PI / 4.0);
mat4.rotateY(position, position, CUBE_ROTATION);
mat4.rotateZ(position, position, CUBE_ROTATION);
GL.bindBuffer(GL.ARRAY_BUFFER, VERTS);
GL.vertexAttribPointer(ATTRIB_VERTEX, 3, GL.FLOAT, false, 20, 0);
GL.enableVertexAttribArray(ATTRIB_VERTEX);
GL.vertexAttribPointer(ATTRIB_TEXCOORD, 2, GL.FLOAT, false, 20, 12);
GL.enableVertexAttribArray(ATTRIB_TEXCOORD);
GL.uniformMatrix4fv(UNIFORM_PROJECTION, false, projection);
GL.uniformMatrix4fv(UNIFORM_VIEW, false, view);
GL.uniformMatrix4fv(UNIFORM_POSITION, false, position);
GL.bindBuffer(GL.ELEMENT_ARRAY_BUFFER, IDXS);
GL.drawElements(GL.TRIANGLES, 36, GL.UNSIGNED_SHORT, 0);
requestAnimationFrame(render);
}
function setField(nm, v) {
const elem = document.getElementById("info-" + nm);
if (elem) {
elem.innerText = v.toString();
}
}
initGL();
const uid = location.hash.slice(1);
const resp = await fetch(`${globalThis.apiServer}/user/info/${uid}`);
if (!resp.ok) {
showError();
} else {
uploadImage(`${globalThis.apiServer}/user/avatar/${uid}.png`);
const info = await resp.json()
setName(info.properties["name"]);
for (let nm in info.stats) {
setField(nm, info.stats[nm]);
}
for (let nm in info.properties) {
setField(nm, info.properties[nm]);
}
showContents();
}
|
