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add tesseract; penger; speed control #6

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35 changes: 33 additions & 2 deletions cube.js
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Original file line number Diff line number Diff line change
@@ -1,4 +1,14 @@
const vs = [
const vs1 = [
{x: 0.125, y: 0.125, z: 0.125},
{x: -0.125, y: 0.125, z: 0.125},
{x: -0.125, y: -0.125, z: 0.125},
{x: 0.125, y: -0.125, z: 0.125},

{x: 0.125, y: 0.125, z: -0.125},
{x: -0.125, y: 0.125, z: -0.125},
{x: -0.125, y: -0.125, z: -0.125},
{x: 0.125, y: -0.125, z: -0.125},

{x: 0.25, y: 0.25, z: 0.25},
{x: -0.25, y: 0.25, z: 0.25},
{x: -0.25, y: -0.25, z: 0.25},
Expand All @@ -8,13 +18,34 @@ const vs = [
{x: -0.25, y: 0.25, z: -0.25},
{x: -0.25, y: -0.25, z: -0.25},
{x: 0.25, y: -0.25, z: -0.25},

]

const fs = [
const fs1 = [
[0, 1, 2, 3],
[4, 5, 6, 7],

[8, 9, 10, 11],
[12, 13, 14, 15],

[0, 4],
[1, 5],
[2, 6],
[3, 7],

[8, 12],
[9, 13],
[10, 14],
[11, 15],

[0, 8],
[1, 9],
[2, 10],
[3, 11],

[4, 12],
[5, 13],
[6 ,14],
[7, 15]

]
Binary file added imgs/multi_model_demo.mp4
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33 changes: 30 additions & 3 deletions index.html
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Original file line number Diff line number Diff line change
@@ -1,4 +1,31 @@
<canvas id="game"></canvas>
<script src="penger.js"></script>
<!-- <script src="cube.js"></script> -->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>3d Animation</title>
<style>
.background-color {
background-color:darkgrey;
}
#current-fps {
background-color: black;
color: white;
}
</style>
</head>
<body class="background-color">
<div>
<canvas id="game"></canvas>
<canvas id="game2"></canvas>
</div>

<a id="current-fps"></a>
<label for="speed">Speed (fast to slow):</label>
<input type="range" id="speed" name="speed" min="1" max="1000" value="1000">

</body>
<script src="penger.js"></script>
<script src="cube.js"></script>
<script src="index.js"></script>
</html>
82 changes: 54 additions & 28 deletions index.js
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Original file line number Diff line number Diff line change
@@ -1,32 +1,41 @@
const BACKGROUND = "#101010"
const FOREGROUND = "#50FF50"
const HEIGHT = 600
const WIDTH = 600

console.log(game)
game.width = 800
game.height = 800
const ctx = game.getContext("2d")
console.log(ctx)
game.width = WIDTH
game.height = HEIGHT
const game1_ctx = game.getContext("2d")
console.log(game1_ctx)

function clear() {
console.log(game2)
game2.width = WIDTH
game2.height = HEIGHT
const game2_ctx = game2.getContext("2d")
console.log(game2_ctx)

function clear(ctx) {
ctx.fillStyle = BACKGROUND
ctx.fillRect(0, 0, game.width, game.height)
}

function point({x, y}) {
function point({x, y}, ctx) {
const s = 20;
ctx.fillStyle = FOREGROUND
ctx.fillRect(x - s/2, y - s/2, s, s)
ctx.fillStyle = FOREGROUND
}

function line(p1, p2) {
ctx.lineWidth = 3;
function line(p1, p2, ctx) {
ctx.lineWidth = 3
ctx.strokeStyle = FOREGROUND
ctx.beginPath();
ctx.moveTo(p1.x, p1.y);
ctx.lineTo(p2.x, p2.y);
ctx.beginPath();
ctx.moveTo(p1.x, p1.y)
ctx.lineTo(p2.x, p2.y)
ctx.stroke();
}


function screen(p) {
// -1..1 => 0..2 => 0..1 => 0..w
return {
Expand All @@ -42,8 +51,11 @@ function project({x, y, z}) {
}
}

const FPS = 60;
const FPS = 60
let dz = 1;
let angle = 0;

document.getElementById("current-fps").innerHTML = "FPS: " + FPS

function translate_z({x, y, z}, dz) {
return {x, y, z: z + dz};
Expand All @@ -59,25 +71,39 @@ function rotate_xz({x, y, z}, angle) {
};
}

let dz = 1;
let angle = 0;
function draw(fs, vs, ctx) {
for(const f of fs) {
for(let i=0;i<f.length;++i){
const a = vs[f[i]];
const b = vs[f[(i+1)%f.length]]
line(screen(project(translate_z(rotate_xz(a, angle), dz))),
screen(project(translate_z(rotate_xz(b, angle), dz))),
ctx)
}
}
}

function show_points(vs, ctx) {
for (const v of vs) {
point(screen(project(translate_z(rotate_xz(v, angle), dz))), ctx)
}
}


function frame() {
const dt = 1/FPS;
// dz += 1*dt;
angle += Math.PI*dt;
clear()
// for (const v of vs) {
// point(screen(project(translate_z(rotate_xz(v, angle), dz))))
// }
for (const f of fs) {
for (let i = 0; i < f.length; ++i) {
const a = vs[f[i]];
const b = vs[f[(i+1)%f.length]];
line(screen(project(translate_z(rotate_xz(a, angle), dz))),
screen(project(translate_z(rotate_xz(b, angle), dz))))
}
}
setTimeout(frame, 1000/FPS);
clear(game1_ctx)
clear(game2_ctx)

// show_points(vs, game1_ctx)

draw(fs, vs, game1_ctx)
draw(fs1, vs1, game2_ctx)

const val = document.getElementById("speed").value

setTimeout(frame, val/FPS);
}
setTimeout(frame, 1000/FPS);