<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>时光荏苒，白驹过隙！</title>
<style>
html,
body {
margin: 0px;
width: 100%;
height: 100%;
overflow: hidden;
background: #000;
}
</style>
</head>
<body>
<canvas
id="canvas"
style="position: absolute; width: 100%; height: 100%; z-index: 8888"
></canvas>
<canvas
style="position: absolute; width: 100%; height: 100%; z-index: 9999"
class="canvas"
></canvas>
<div class="overlay">
<div class="tabs">
<div class="tabs-labels">
<span class="tabs-label">Commands</span
><span class="tabs-label">Info</span
><span class="tabs-label">Share</span>
</div>
<div class="tabs-panels">
<ul class="tabs-panel commands"></ul>
</div>
</div>
</div>
<script>
function initVars() {
pi = Math.PI;
ctx = canvas.getContext("2d");
canvas.width = canvas.clientWidth;
canvas.height = canvas.clientHeight;
cx = canvas.width / 2;
cy = canvas.height / 2;
playerZ = -25;
playerX =
playerY =
playerVX =
playerVY =
playerVZ =
pitch =
yaw =
pitchV =
yawV =
0;
scale = 600;
seedTimer = 0;
(seedInterval = 5), (seedLife = 100);
gravity = 0.02;
seeds = new Array();
sparkPics = new Array();
s = "https://cantelope.org/NYE/";
for (i = 1; i <= 10; ++i) {
sparkPic = new Image();
sparkPic.src = s + "spark" + i + ".png";
sparkPics.push(sparkPic);
}
sparks = new Array();
pow1 = new Audio(s + "pow1.ogg");
pow2 = new Audio(s + "pow2.ogg");
pow3 = new Audio(s + "pow3.ogg");
pow4 = new Audio(s + "pow4.ogg");
frames = 0;
}
function rasterizePoint(x, y, z) {
var p, d;
x -= playerX;
y -= playerY;
z -= playerZ;
p = Math.atan2(x, z);
d = Math.sqrt(x * x + z * z);
x = Math.sin(p - yaw) * d;
z = Math.cos(p - yaw) * d;
p = Math.atan2(y, z);
d = Math.sqrt(y * y + z * z);
y = Math.sin(p - pitch) * d;
z = Math.cos(p - pitch) * d;
var rx1 = -1000,
ry1 = 1,
rx2 = 1000,
ry2 = 1,
rx3 = 0,
ry3 = 0,
rx4 = x,
ry4 = z,
uc = (ry4 - ry3) * (rx2 - rx1) - (rx4 - rx3) * (ry2 - ry1);
if (!uc) return { x: 0, y: 0, d: -1 };
var ua = ((rx4 - rx3) * (ry1 - ry3) - (ry4 - ry3) * (rx1 - rx3)) / uc;
var ub = ((rx2 - rx1) * (ry1 - ry3) - (ry2 - ry1) * (rx1 - rx3)) / uc;
if (!z) z = 0.000000001;
if (ua > 0 && ua < 1 && ub > 0 && ub < 1) {
return {
x: cx + (rx1 + ua * (rx2 - rx1)) * scale,
y: cy + (y / z) * scale,
d: Math.sqrt(x * x + y * y + z * z),
};
} else {
return {
x: cx + (rx1 + ua * (rx2 - rx1)) * scale,
y: cy + (y / z) * scale,
d: -1,
};
}
}
function spawnSeed() {
seed = new Object();
seed.x = -50 + Math.random() * 100;
seed.y = 25;
seed.z = -50 + Math.random() * 100;
seed.vx = 0.1 - Math.random() * 0.2;
seed.vy = -1.5; //*(1+Math.random()/2);
seed.vz = 0.1 - Math.random() * 0.2;
seed.born = frames;
seeds.push(seed);
}
function splode(x, y, z) {
t = 5 + parseInt(Math.random() * 150);
sparkV = 1 + Math.random() * 2.5;
type = parseInt(Math.random() * 3);
switch (type) {
case 0:
pic1 = parseInt(Math.random() * 10);
break;
case 1:
pic1 = parseInt(Math.random() * 10);
do {
pic2 = parseInt(Math.random() * 10);
} while (pic2 == pic1);
break;
case 2:
pic1 = parseInt(Math.random() * 10);
do {
pic2 = parseInt(Math.random() * 10);
} while (pic2 == pic1);
do {
pic3 = parseInt(Math.random() * 10);
} while (pic3 == pic1 || pic3 == pic2);
break;
}
for (m = 1; m < t; ++m) {
spark = new Object();
spark.x = x;
spark.y = y;
spark.z = z;
p1 = pi * 2 * Math.random();
p2 = pi * Math.random();
v = sparkV * (1 + Math.random() / 6);
spark.vx = Math.sin(p1) * Math.sin(p2) * v;
spark.vz = Math.cos(p1) * Math.sin(p2) * v;
spark.vy = Math.cos(p2) * v;
switch (type) {
case 0:
spark.img = sparkPics[pic1];
break;
case 1:
spark.img = sparkPics[parseInt(Math.random() * 2) ? pic1 : pic2];
break;
case 2:
switch (parseInt(Math.random() * 3)) {
case 0:
spark.img = sparkPics[pic1];
break;
case 1:
spark.img = sparkPics[pic2];
break;
case 2:
spark.img = sparkPics[pic3];
break;
}
break;
}
spark.radius = 25 + Math.random() * 50;
spark.alpha = 1;
spark.trail = new Array();
sparks.push(spark);
}
switch (parseInt(Math.random() * 4)) {
case 0:
pow = new Audio(s + "pow1.ogg");
break;
case 1:
pow = new Audio(s + "pow2.ogg");
break;
case 2:
pow = new Audio(s + "pow3.ogg");
break;
case 3:
pow = new Audio(s + "pow4.ogg");
break;
}
d = Math.sqrt(
(x - playerX) * (x - playerX) +
(y - playerY) * (y - playerY) +
(z - playerZ) * (z - playerZ)
);
pow.volume = 1.5 / (1 + d / 10);
pow.play();
}
function doLogic() {
if (seedTimer < frames) {
seedTimer = frames + seedInterval * Math.random() * 10;
spawnSeed();
}
for (i = 0; i < seeds.length; ++i) {
seeds[i].vy += gravity;
seeds[i].x += seeds[i].vx;
seeds[i].y += seeds[i].vy;
seeds[i].z += seeds[i].vz;
if (frames - seeds[i].born > seedLife) {
splode(seeds[i].x, seeds[i].y, seeds[i].z);
seeds.splice(i, 1);
}
}
for (i = 0; i < sparks.length; ++i) {
if (sparks[i].alpha > 0 && sparks[i].radius > 5) {
sparks[i].alpha -= 0.01;
sparks[i].radius /= 1.02;
sparks[i].vy += gravity;
point = new Object();
point.x = sparks[i].x;
point.y = sparks[i].y;
point.z = sparks[i].z;
if (sparks[i].trail.length) {
x = sparks[i].trail[sparks[i].trail.length - 1].x;
y = sparks[i].trail[sparks[i].trail.length - 1].y;
z = sparks[i].trail[sparks[i].trail.length - 1].z;
d =
(point.x - x) * (point.x - x) +
(point.y - y) * (point.y - y) +
(point.z - z) * (point.z - z);
if (d > 9) {
sparks[i].trail.push(point);
}
} else {
sparks[i].trail.push(point);
}
if (sparks[i].trail.length > 5) sparks[i].trail.splice(0, 1);
sparks[i].x += sparks[i].vx;
sparks[i].y += sparks[i].vy;
sparks[i].z += sparks[i].vz;
sparks[i].vx /= 1.075;
sparks[i].vy /= 1.075;
sparks[i].vz /= 1.075;
} else {
