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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>2025新年倒數</title>
<style>
.fireworks-container {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100vh;
z-index: 9998; /* 確保煙火容器在最上層 */
}
#countdown {
color: #fff; /* 白色文字 */
font-family: 'Noto Sans TC', sans-serif; /* 使用指定字体 */
font-weight: 900; /* 设置字体粗细 */
font-size: 24px;
text-align: center;
position: absolute; /* 絕對定位 */
top: 50%; /* 垂直置中 */
left: 50%; /* 水平置中 */
transform: translate(-50%, -50%); /* 水平和垂直置中 */
z-index: 9998; /* 最上層 */
}
.new-year-message {
font-family: 'Noto Sans TC', sans-serif; /* 使用指定字体 */
font-weight: 900; /* 设置字体粗细 */
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
font-size: 48px;
text-align: center;
opacity: 0;
transition: opacity 2s, font-size 2s;
z-index: 9998;
color: #fff; /* 白色文字 */
}
.test-button {
position: absolute;
top: calc(50% - 60px); /* 位于 .lua .textura 上方 */
left: calc(50% - 60px); /* 居中 */
width: 120px;
height: 120px;
background-color: transparent; /* 设为透明 */
color: #fff;
border: none;
font-size: 24px;
cursor: pointer;
border-radius: 50%; /* 圆形按钮 */
z-index: 10000; /* 确保在最上层 */
display: flex;
align-items: center;
justify-content: center;
}
.overlay {
display: none;
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: rgba(0, 0, 0, 0.5);
justify-content: center;
align-items: center;
z-index: 9999
}
.instructions {
background-color: rgba(0, 0, 0, 0.3); /* 修改為純黑，透明度 30% */
padding: 20px;
border-radius: 10px;
text-align: center;
z-index: 9999
}
.instructions h2 {
margin-top: 0;
color: #fff; /* 指示文字顏色為白色 */
text-align: center; /* 讓 <h2> 元素置中 */
z-index: 9999
}
.instructions p {
margin-bottom: 10px;
color: #fff; /* 指示文字顏色為白色 */
text-align: left; /* 讓 <p> 元素靠左對齊 */
z-index: 9999
}
/* 添加一些自定義樣式來渲染鍵盤按鈕 */
.keyboard-key {
display: inline-block;
border: 1px solid #fff;
border-radius: 5px;
padding: 5px 10px;
margin: 0 5px;
font-size: 16px;
cursor: pointer;
z-index: 9999
}
/* 鼠标悬停时的样式 */
</style>
<link rel="stylesheet" href="css/StarrySky.css">
<link rel="stylesheet" href="css/snow.css">
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/index.umd.js"></script>
<script src="js/StarrySky.js"></script>
<script src="js/switch.js"></script>
<script src="js/snow.js"></script>
<script src="js/sakura.js"></script>
<script id="sakura_point_vsh" type="x-shader/x_vertex">
uniform mat4 uProjection;
uniform mat4 uModelview;
uniform vec3 uResolution;
uniform vec3 uOffset;
uniform vec3 uDOF; //x:focus distance, y:focus radius, z:max radius
uniform vec3 uFade; //x:start distance, y:half distance, z:near fade start
attribute vec3 aPosition;
attribute vec3 aEuler;
attribute vec2 aMisc; //x:size, y:fade
varying vec3 pposition;
varying float psize;
varying float palpha;
varying float pdist;
//varying mat3 rotMat;
varying vec3 normX;
varying vec3 normY;
varying vec3 normZ;
varying vec3 normal;
varying float diffuse;
varying float specular;
varying float rstop;
varying float distancefade;
void main(void) {
// Projection is based on vertical angle
vec4 pos = uModelview * vec4(aPosition + uOffset, 1.0);
gl_Position = uProjection * pos;
gl_PointSize = aMisc.x * uProjection[1][1] / -pos.z * uResolution.y * 0.5;
pposition = pos.xyz;
psize = aMisc.x;
pdist = length(pos.xyz);
palpha = smoothstep(0.0, 1.0, (pdist - 0.1) / uFade.z);
vec3 elrsn = sin(aEuler);
vec3 elrcs = cos(aEuler);
mat3 rotx = mat3(
1.0, 0.0, 0.0,
0.0, elrcs.x, elrsn.x,
0.0, -elrsn.x, elrcs.x
);
mat3 roty = mat3(
elrcs.y, 0.0, -elrsn.y,
0.0, 1.0, 0.0,
elrsn.y, 0.0, elrcs.y
);
mat3 rotz = mat3(
elrcs.z, elrsn.z, 0.0,
-elrsn.z, elrcs.z, 0.0,
0.0, 0.0, 1.0
);
mat3 rotmat = rotx * roty * rotz;
normal = rotmat[2];
mat3 trrotm = mat3(
rotmat[0][0], rotmat[1][0], rotmat[2][0],
rotmat[0][1], rotmat[1][1], rotmat[2][1],
rotmat[0][2], rotmat[1][2], rotmat[2][2]
);
normX = trrotm[0];
normY = trrotm[1];
normZ = trrotm[2];
const vec3 lit = vec3(0.6917144638660746, 0.6917144638660746, -0.20751433915982237);
float tmpdfs = dot(lit, normal);
if(tmpdfs < 0.0) {
normal = -normal;
tmpdfs = dot(lit, normal);
}
diffuse = 0.4 + tmpdfs;
vec3 eyev = normalize(-pos.xyz);
if(dot(eyev, normal) > 0.0) {
vec3 hv = normalize(eyev + lit);
specular = pow(max(dot(hv, normal), 0.0), 20.0);
}
else {
specular = 0.0;
}
rstop = clamp((abs(pdist - uDOF.x) - uDOF.y) / uDOF.z, 0.0, 1.0);
rstop = pow(rstop, 0.5);
//-0.69315 = ln(0.5)
distancefade = min(1.0, exp((uFade.x - pdist) * 0.69315 / uFade.y));
}
</script>
<script id="sakura_point_fsh" type="x-shader/x_fragment">
#ifdef GL_ES
//precision mediump float;
precision highp float;
#endif
uniform vec3 uDOF; //x:focus distance, y:focus radius, z:max radius
uniform vec3 uFade; //x:start distance, y:half distance, z:near fade start
const vec3 fadeCol = vec3(0.08, 0.03, 0.06);
varying vec3 pposition;
varying float psize;
varying float palpha;
varying float pdist;
//varying mat3 rotMat;
varying vec3 normX;
varying vec3 normY;
varying vec3 normZ;
varying vec3 normal;
varying float diffuse;
varying float specular;
varying float rstop;
varying float distancefade;
float ellipse(vec2 p, vec2 o, vec2 r) {
vec2 lp = (p - o) / r;
return length(lp) - 1.0;
}
void main(void) {
vec3 p = vec3(gl_PointCoord - vec2(0.5, 0.5), 0.0) * 2.0;
vec3 d = vec3(0.0, 0.0, -1.0);
float nd = normZ.z; //dot(-normZ, d);
if(abs(nd) < 0.0001) discard;
float np = dot(normZ, p);
vec3 tp = p + d * np / nd;
vec2 coord = vec2(dot(normX, tp), dot(normY, tp));
//angle = 15 degree
const float flwrsn = 0.258819045102521;
const float flwrcs = 0.965925826289068;
mat2 flwrm = mat2(flwrcs, -flwrsn, flwrsn, flwrcs);
vec2 flwrp = vec2(abs(coord.x), coord.y) * flwrm;
float r;
if(flwrp.x < 0.0) {
r = ellipse(flwrp, vec2(0.065, 0.024) * 0.5, vec2(0.36, 0.96) * 0.5);
}
else {
r = ellipse(flwrp, vec2(0.065, 0.024) * 0.5, vec2(0.58, 0.96) * 0.5);
}
if(r > rstop) discard;
vec3 col = mix(vec3(1.0, 0.8, 0.75), vec3(1.0, 0.9, 0.87), r);
float grady = mix(0.0, 1.0, pow(coord.y * 0.5 + 0.5, 0.35));
col *= vec3(1.0, grady, grady);
col *= mix(0.8, 1.0, pow(abs(coord.x), 0.3));
col = col * diffuse + specular;
col = mix(fadeCol, col, distancefade);
float alpha = (rstop > 0.001)? (0.5 - r / (rstop * 2.0)) : 1.0;
alpha = smoothstep(0.0, 1.0, alpha) * palpha;
gl_FragColor = vec4(col * 0.5, alpha);
}
</script>
<script id="fx_common_vsh" type="x-shader/x_vertex">
uniform vec3 uResolution;
attribute vec2 aPosition;
varying vec2 texCoord;
varying vec2 screenCoord;
void main(void) {
gl_Position = vec4(aPosition, 0.0, 1.0);
texCoord = aPosition.xy * 0.5 + vec2(0.5, 0.5);
screenCoord = aPosition.xy * vec2(uResolution.z, 1.0);
}
</script>
<script id="bg_fsh" type="x-shader/x_fragment">
#ifdef GL_ES
//precision mediump float;
precision highp float;
#endif
uniform vec2 uTimes;
varying vec2 texCoord;
varying vec2 screenCoord;
void main(void) {
discard; // 將整個背景設置為透明
}
</script>
<script id="fx_brightbuf_fsh" type="x-shader/x_fragment">
#ifdef GL_ES
//precision mediump float;
precision highp float;
#endif
uniform sampler2D uSrc;
uniform vec2 uDelta;
varying vec2 texCoord;
varying vec2 screenCoord;
void main(void) {
discard; // 將整個背景設置為透明
}
</script>
<script id="fx_dirblur_r4_fsh" type="x-shader/x_fragment">
#ifdef GL_ES
//precision mediump float;
precision highp float;
#endif
uniform sampler2D uSrc;
uniform vec2 uDelta;
uniform vec4 uBlurDir; //dir(x, y), stride(z, w)
varying vec2 texCoord;
varying vec2 screenCoord;
void main(void) {
discard; // 將整個背景設置為透明
}
</script>
<script id="fx_common_fsh" type="x-shader/x_fragment">
#ifdef GL_ES
//precision mediump float;
precision highp float;
#endif
uniform sampler2D uSrc;
uniform vec2 uDelta;
varying vec2 texCoord;
varying vec2 screenCoord;
void main(void) {
gl_FragColor = texture2D(uSrc, texCoord);
}
</script>
<script id="pp_final_vsh" type="x-shader/x_vertex">
uniform vec3 uResolution;
attribute vec2 aPosition;
varying vec2 texCoord;
varying vec2 screenCoord;
void main(void) {
gl_Position = vec4(aPosition, 0.0, 1.0);
texCoord = aPosition.xy * 0.5 + vec2(0.5, 0.5);
screenCoord = aPosition.xy * vec2(uResolution.z, 1.0);
}
</script>
<script id="pp_final_fsh" type="x-shader/x_fragment">
#ifdef GL_ES
//precision mediump float;
precision highp float;
#endif
uniform sampler2D uSrc;
uniform sampler2D uBloom;
uniform vec2 uDelta;
varying vec2 texCoord;
varying vec2 screenCoord;
void main(void) {
vec4 srccol = texture2D(uSrc, texCoord) * 2.0;
vec4 bloomcol = texture2D(uBloom, texCoord);
vec4 col;
col = srccol + bloomcol * (vec4(1.0) + srccol);
col *= smoothstep(1.0, 0.0, pow(length((texCoord - vec2(0.5)) * 2.0), 1.2) * 0.5);
col = pow(col, vec4(0.45454545454545)); //(1.0 / 2.2)
gl_FragColor = vec4(col.rgb, 1.0);
gl_FragColor.a = 0.0;
}
</script>
</head>
<body>
<div class="overlay" id="overlay">
<div class="instructions">
<h2>使用提示</h2>
<p>點擊月亮可以預覽跨年特效</p>
<p>開始施放煙火時點擊畫面可以指定施放位置</p><br>
<h2>特效切換</h2>
<p>按 <span class="keyboard-key">S</span> 切換下雪</p>
<p>按 <span class="keyboard-key">R</span> 切換下雨</p>
<p>按 <span class="keyboard-key">J</span> 切換櫻花雨</p>
</div>
</div>
<div id="countdown"></div>
<div class="fireworks-container"></div>
<div class="noite"><canvas id="rainCanvas"></canvas><canvas id="sakura"></canvas></div>
<div class="constelacao"></div>
<div class="lua">
<div class="textura"></div>
<button class="test-button" onclick="startCountdown(); playAudio();"></button>
</div>
<div class="snow-container" style="display: none;"></div>
<div class="chuvaMeteoro"></div>
<div class="floresta">
<img src="image/city.png" alt="" />
</div>
<script src="js/rain.js"></script>
<script>
document.addEventListener("DOMContentLoaded", function() {
const overlay = document.getElementById('overlay');
// Function to show the overlay
function showOverlay() {
overlay.style.display = 'flex';
}
// Function to hide the overlay
function hideOverlay() {
overlay.style.display = 'none';
}
// Show overlay initially
showOverlay();
// Hide overlay when clicking anywhere on the overlay
overlay.addEventListener('click', hideOverlay);
// Hide overlay when pressing the Esc key
document.addEventListener('keydown', function(event) {
if (event.key === 'Escape') {
hideOverlay();
}
});
});
// 设置跨年的时间点
const newYearTime = new Date('January 1, 2025 00:00:00').getTime();
//'January 1, 2024 00:00:00'
//'December 31, 2023 23:59:59'
// 更新倒计时和特殊效果
const updateCountdown = () => {
const now = new Date().getTime();
const distance = newYearTime - now;
if (distance < 0) {
clearInterval(interval);
countdown.style.display = 'none';
startFireworks();
displayHappyNewYearMessage();
return;
}
let days = Math.floor(distance / (1000 * 60 * 60 * 24));
let hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
let minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
let seconds = Math.floor((distance % (1000 * 60)) / 1000);
let countdownText = '';
if (days > 0) {
countdownText += `${days} 天 `;
}
if (hours > 0 || days > 0) {
countdownText += `${hours} 小時 `;
}
if (minutes > 0 || hours > 0 || days > 0) {
countdownText += `${minutes} 分鐘 `;
}
countdownText += `${seconds} 秒`;
countdown.innerHTML = `${countdownText}`;
if (distance <= 11000) {
countdown.style.fontSize = '100px';
} else {
countdown.style.fontSize = '48px';
}
};
function displayHappyNewYearMessage() {
const happyNewYearMessage = document.createElement('div');
happyNewYearMessage.textContent = '2025新年快樂';
happyNewYearMessage.className = 'new-year-message';
document.body.appendChild(happyNewYearMessage);
setTimeout(() => {
happyNewYearMessage.style.opacity = '1';
happyNewYearMessage.style.fontSize = '72px';
}, 10);
setTimeout(() => {
happyNewYearMessage.style.opacity = '0';
}, 2000);
setTimeout(() => {
happyNewYearMessage.style.display = 'none';
}, 3000);
}
const interval = setInterval(updateCountdown, 1000);
// 在特定時間啟動煙火效果
function startFireworks() {
const container = document.querySelector('.fireworks-container');
const fireworksConfig = {
autoresize: true,
opacity: 0.5,
acceleration: 1.05,
friction: 0.97,
gravity: 1.5,
particles: 50,
traceLength: 3,
traceSpeed: 10,
explosion: 5,
intensity: 100,
flickering: 50,
lineStyle: 'round',
hue: {
min: 0,
max: 360
},
delay: {
min: 30,
max: 60
},
rocketsPoint: {
min: 50,
max: 50
},
lineWidth: {
explosion: {
min: 1,
max: 3
},
trace: {
min: 1,
max: 2
}
},
brightness: {
min: 55,
max: 100
},
decay: {
min: 0.015,
max: 0.03
},
mouse: {
click: true,
move: false,
max: 10
},
sound: {
enabled: true,
files: ["https://fireworks.js.org/sounds/explosion0.mp3", "https://fireworks.js.org/sounds/explosion1.mp3", "https://fireworks.js.org/sounds/explosion2.mp3"],
volume: {
min: 4,
max: 8
}
}
};
const fireworks = new Fireworks.default(container, fireworksConfig);
fireworks.start();
}
function startCountdown() {
displayHappyNewYearMessage(); // 首先显示新年祝福信息
startFireworks(); // 然后开始烟火效果
clearInterval(interval); // 清除现有的倒计时
updateCountdown(); // 立即更新倒计时
document.getElementById('countdown').style.display = 'none';
}
</script>
</body>
</html>