Feat: 新增下雪特效,加强烟花/下雨在浅色背景的显色(发光粒子+深色雨线)

This commit is contained in:
2026-02-27 14:22:13 +08:00
parent 215fbd7221
commit 4da2d19b1f
7 changed files with 166 additions and 54 deletions

View File

@@ -386,7 +386,7 @@ class AdminCommandController extends Controller
{
$request->validate([
'room_id' => 'required|integer',
'type' => 'required|in:fireworks,rain,lightning',
'type' => 'required|in:fireworks,rain,lightning,snow',
]);
$admin = Auth::user();

View File

@@ -51,7 +51,7 @@ const EffectManager = (() => {
/**
* 播放指定特效
*
* @param {string} type 特效类型fireworks / rain / lightning
* @param {string} type 特效类型fireworks / rain / lightning / snow
*/
function play(type) {
// 防重入:同时只允许一个特效
@@ -81,6 +81,11 @@ const EffectManager = (() => {
LightningEffect.start(canvas, _cleanup);
}
break;
case "snow":
if (typeof SnowEffect !== "undefined") {
SnowEffect.start(canvas, _cleanup);
}
break;
default:
console.warn(`[EffectManager] 未知特效类型:${type}`);
_cleanup();

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@@ -2,7 +2,8 @@
* 文件功能:聊天室烟花特效
*
* 使用 Canvas 粒子系统在全屏播放多发烟花爆炸动画。
* 特效总时长约 4 秒,结束后自动清理并回调
* 粒子加大、加发光描边,在浅色背景上也清晰可见
* 特效总时长约 5 秒,结束后自动清理并回调。
*/
const FireworksEffect = (() => {
@@ -14,13 +15,13 @@ const FireworksEffect = (() => {
this.color = color;
// 随机方向和速度
const angle = Math.random() * Math.PI * 2;
const speed = Math.random() * 6 + 2;
const speed = Math.random() * 7 + 3;
this.vx = Math.cos(angle) * speed;
this.vy = Math.sin(angle) * speed;
this.alpha = 1;
this.gravity = 0.12;
this.decay = Math.random() * 0.012 + 0.012; // 透明度每帧衰减量
this.radius = Math.random() * 3 + 1;
this.decay = Math.random() * 0.01 + 0.01; // 衰减略慢,显色更久
this.radius = Math.random() * 4 + 2; // 增大粒子半径
}
/** 每帧更新粒子位置和状态 */
@@ -28,16 +29,18 @@ const FireworksEffect = (() => {
this.vy += this.gravity;
this.x += this.vx;
this.y += this.vy;
this.vx *= 0.98; // 空气阻力
this.vx *= 0.98;
this.vy *= 0.98;
this.alpha -= this.decay;
}
/** 绘制粒子 */
/** 绘制粒子(发光效果,在浅色背景上也突出) */
draw(ctx) {
ctx.save();
ctx.globalAlpha = Math.max(0, this.alpha);
ctx.fillStyle = this.color;
ctx.shadowColor = this.color;
ctx.shadowBlur = 8;
ctx.beginPath();
ctx.arc(this.x, this.y, this.radius, 0, Math.PI * 2);
ctx.fill();
@@ -45,29 +48,24 @@ const FireworksEffect = (() => {
}
}
// 预定义烟花颜色组
// 预定义烟花颜色组(饱和度高,避免和浅蓝背景撞色)
const COLORS = [
"#ff4444",
"#ff8800",
"#ffdd00",
"#44ff44",
"#44ddff",
"#8844ff",
"#ff44cc",
"#ffffff",
"#ffaaaa",
"#aaffaa",
"#aaaaff",
"#ffffaa",
"#ff2200",
"#ff7700",
"#ffcc00",
"#00cc33",
"#cc00ff",
"#ff0088",
"#00aaff",
"#ff4488",
"#ff6600",
"#aaff00",
"#ff2255",
"#ffaa00",
];
/**
* 发射一枚烟花,返回粒子数组
*
* @param {number} x 爆炸中心 x
* @param {number} y 爆炸中心 y
* @param {number} count 粒子数量
* @returns {Particle[]}
*/
function _burst(x, y, count) {
const color = COLORS[Math.floor(Math.random() * COLORS.length)];
@@ -88,12 +86,12 @@ const FireworksEffect = (() => {
const ctx = canvas.getContext("2d");
const w = canvas.width;
const h = canvas.height;
const DURATION = 4500; // 总时长ms
const DURATION = 5000; // 总时长ms
let particles = [];
let animId = null;
let launchCount = 0;
const MAX_LAUNCHES = 8; // 总发射几枚烟花
const MAX_LAUNCHES = 10; // 总发射枚数(增加)
// 定时发射烟花
const launchInterval = setInterval(() => {
@@ -101,21 +99,21 @@ const FireworksEffect = (() => {
clearInterval(launchInterval);
return;
}
const x = w * (0.15 + Math.random() * 0.7); // 避免贴近边缘
const y = h * (0.1 + Math.random() * 0.5); // 在屏幕上半区爆炸
const count = Math.floor(Math.random() * 40) + 60;
particles = particles.concat(_burst(x, y, count));
const x = w * (0.1 + Math.random() * 0.8);
const y = h * (0.05 + Math.random() * 0.5);
const cnt = Math.floor(Math.random() * 50) + 80; // 每枚 80-130 粒子(增多)
particles = particles.concat(_burst(x, y, cnt));
launchCount++;
}, 500);
}, 450);
const startTime = performance.now();
// 动画循环
function animate(now) {
// 清除画布(保持透明,不遮挡聊天背景)
// 清除画布(透明,不遮挡聊天背景)
ctx.clearRect(0, 0, w, h);
// 更新并绘制存活粒子(粒子自带 alpha 衰减,视觉上有淡出效果)
// 更新并绘制存活粒子
particles = particles.filter((p) => p.alpha > 0.02);
particles.forEach((p) => {
p.update();
@@ -125,7 +123,6 @@ const FireworksEffect = (() => {
if (now - startTime < DURATION) {
animId = requestAnimationFrame(animate);
} else {
// 特效结束:清空 canvas 后回调
clearInterval(launchInterval);
cancelAnimationFrame(animId);
ctx.clearRect(0, 0, w, h);

View File

@@ -2,6 +2,7 @@
* 文件功能:聊天室下雨特效
*
* 使用 Canvas 绘制斜向雨线,模拟真实降雨视觉效果。
* 加粗加深雨线颜色,在浅色背景上清晰可见。
* 特效总时长约 8 秒,结束后自动清理并回调。
*/
@@ -14,17 +15,15 @@ const RainEffect = (() => {
/**
* 重置/初始化雨滴位置
*
* @param {number} w Canvas 宽度
* @param {number} h Canvas 高度
*/
reset(w, h) {
this.x = Math.random() * w;
this.y = Math.random() * -h; // 从屏幕上方随机位置开始
this.len = Math.random() * 20 + 10; // 雨线长度
this.speed = Math.random() * 8 + 6; // 下落速度
this.angle = (Math.PI / 180) * (75 + Math.random() * 10); // 倾斜角(接近竖直偏右)
this.alpha = Math.random() * 0.3 + 0.2; // 透明度
this.y = Math.random() * -h;
this.len = Math.random() * 25 + 12; // 雨线长度(稍加长)
this.speed = Math.random() * 10 + 7; // 下落速度(加快)
this.angle = (Math.PI / 180) * (75 + Math.random() * 10);
this.alpha = Math.random() * 0.5 + 0.4; // 提高透明度上限 (0.4-0.9,原 0.2-0.5)
this.strokeW = Math.random() * 1.5 + 0.8; // 线条宽度随机(原 0.8 固定)
this.w = w;
this.h = h;
}
@@ -33,17 +32,18 @@ const RainEffect = (() => {
update() {
this.x += Math.cos(this.angle) * this.speed * 0.3;
this.y += Math.sin(this.angle) * this.speed;
// 落出屏幕后重置
if (this.y > this.h + this.len) {
this.reset(this.w, this.h);
}
}
/** 绘制雨滴线段 */
/** 绘制雨滴线段(加深蓝色,在浅色背景上更明显) */
draw(ctx) {
ctx.save();
ctx.strokeStyle = `rgba(155, 200, 255, ${this.alpha})`;
ctx.lineWidth = 0.8;
ctx.strokeStyle = `rgba(50, 130, 220, ${this.alpha})`; // 加深蓝色(原浅蓝 155,200,255
ctx.lineWidth = this.strokeW;
ctx.shadowColor = "rgba(30, 100, 200, 0.4)";
ctx.shadowBlur = 2;
ctx.beginPath();
ctx.moveTo(this.x, this.y);
ctx.lineTo(
@@ -65,13 +65,12 @@ const RainEffect = (() => {
const ctx = canvas.getContext("2d");
const w = canvas.width;
const h = canvas.height;
const DURATION = 8000; // 总时长ms
const DROP_COUNT = 180; // 雨滴数量
const DURATION = 8000;
const DROP_COUNT = 200; // 增加雨滴数量(原 180
// 初始化所有雨滴,随机分布在屏幕各处(避免开始时从顶部一起落)
const drops = Array.from({ length: DROP_COUNT }, () => {
const d = new Drop(w, h);
d.y = Math.random() * h; // 初始 Y 随机,不全部从顶部开始
d.y = Math.random() * h;
return d;
});
@@ -79,7 +78,7 @@ const RainEffect = (() => {
const startTime = performance.now();
function animate(now) {
// 清除画布(保持透明,不遮挡聊天背景)
// 清除画布(透明,不遮挡聊天背景)
ctx.clearRect(0, 0, w, h);
drops.forEach((d) => {

107
public/js/effects/snow.js Normal file
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@@ -0,0 +1,107 @@
/**
* 文件功能:聊天室下雪特效
*
* 使用 Canvas 绘制随机飘落的雪花圆点,模拟冬日飘雪效果。
* 雪花大小、速度、飘动幅度随机,在浅色背景上以白色+深描边显示。
* 特效总时长约 10 秒,结束后自动清理并回调。
*/
const SnowEffect = (() => {
// 雪花类
class Flake {
constructor(w, h) {
this.w = w;
this.h = h;
this.reset(true);
}
/**
* 重置雪花位置
*
* @param {boolean} initial 是否初始化(初始化时 Y 随机分布全屏,否则从顶部重生)
*/
reset(initial = false) {
this.x = Math.random() * this.w;
this.y = initial ? Math.random() * this.h : -10;
this.r = Math.random() * 4 + 2; // 半径 2-6
this.speed = Math.random() * 1.5 + 0.5; // 下落速度
this.drift = Math.random() * 0.8 - 0.4; // 水平漂移
this.alpha = Math.random() * 0.4 + 0.6; // 透明度 0.6-1.0
this.angle = 0;
this.wobble = Math.random() * 0.04 + 0.01; // 左右摇摆频率
}
/** 每帧更新雪花位置 */
update() {
this.angle += this.wobble;
this.x += Math.sin(this.angle) * this.drift + this.drift * 0.3;
this.y += this.speed;
if (this.y > this.h + 10) {
this.reset(false);
}
}
/** 绘制雪花(白色圆点 + 深色描边,在浅色背景上可见) */
draw(ctx) {
ctx.save();
ctx.globalAlpha = this.alpha;
// 外圈:半透明蓝灰描边
ctx.beginPath();
ctx.arc(this.x, this.y, this.r, 0, Math.PI * 2);
ctx.strokeStyle = "rgba(80, 120, 180, 0.6)";
ctx.lineWidth = 0.8;
ctx.stroke();
// 内部:白色填充
ctx.fillStyle = "#ffffff";
ctx.shadowColor = "rgba(150, 180, 255, 0.8)";
ctx.shadowBlur = 4;
ctx.fill();
ctx.restore();
}
}
/**
* 启动下雪特效
*
* @param {HTMLCanvasElement} canvas 全屏 Canvas
* @param {Function} onEnd 特效结束回调
*/
function start(canvas, onEnd) {
const ctx = canvas.getContext("2d");
const w = canvas.width;
const h = canvas.height;
const DURATION = 10000; // 总时长ms
const FLAKE_COUNT = 160; // 雪花数量
// 初始化雪花,随机分布全屏(避免开始时全堆在顶部)
const flakes = Array.from(
{ length: FLAKE_COUNT },
() => new Flake(w, h),
);
let animId = null;
const startTime = performance.now();
function animate(now) {
// 清除画布(透明,不遮挡聊天背景)
ctx.clearRect(0, 0, w, h);
flakes.forEach((f) => {
f.update();
f.draw(ctx);
});
if (now - startTime < DURATION) {
animId = requestAnimationFrame(animate);
} else {
cancelAnimationFrame(animId);
ctx.clearRect(0, 0, w, h);
onEnd();
}
}
animId = requestAnimationFrame(animate);
}
return { start };
})();

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@@ -94,11 +94,12 @@
{{-- ═══════════ 聊天室交互脚本(独立文件维护) ═══════════ --}}
@include('chat.partials.user-actions')
{{-- 全屏特效系统:管理员烟花/下雨/雷电 --}}
{{-- 全屏特效系统:管理员烟花/下雨/雷电/下雪 --}}
<script src="/js/effects/effect-manager.js"></script>
<script src="/js/effects/fireworks.js"></script>
<script src="/js/effects/rain.js"></script>
<script src="/js/effects/lightning.js"></script>
<script src="/js/effects/snow.js"></script>
@include('chat.partials.scripts')

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@@ -87,6 +87,9 @@
<button type="button" onclick="triggerEffect('lightning')" title="全屏雷电"
style="font-size: 11px; padding: 1px 6px; background: #7c3aed; color: #fff; border: none; border-radius: 2px; cursor: pointer;">
雷电</button>
<button type="button" onclick="triggerEffect('snow')" title="全屏下雪"
style="font-size: 11px; padding: 1px 6px; background: #0891b2; color: #fff; border: none; border-radius: 2px; cursor: pointer;">❄️
下雪</button>
@endif
<button type="button" onclick="location.reload()"