用户:Exschwasion/空山新雨后.js

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// 杂物间:空山新雨后.js
// 还原 https://www.bingzhuyetan.com/miss-you.html 的"我想你"蔓延效果
// 仅在杂物间:空山新雨后页面生效

(function() {
    'use strict';

    // 仅在指定页面运行
    var pageName = mw.config.get('wgPageName');
    if (pageName !== '杂物间:空山新雨后' && pageName !== '杂物间_空山新雨后') return;

    // 等待页面内容加载完成
    $(function() {
        var $container = $('.miss-you-container');
        var $overlay = $container.find('.miss-you-overlay');
        var $final = $container.find('.miss-you-final');
        var $blackout = $container.find('.miss-you-blackout');

        if (!$overlay.length) return;

        var isFlooding = false;
        var isFinished = false;
        var currentSpeed = 600;
        var speedLevel = 0;
        var addInterval = null;
        var speedTimer = null;
        var batchFastInterval = null;
        var coverCheckInterval = null;

        // 获取容器边界
        function getBounds() {
            var rect = $overlay[0].getBoundingClientRect();
            return {
                width: rect.width,
                height: rect.height
            };
        }

        // 生成一个"我想你"
        function addMissWord() {
            if (isFinished) return;

            var bounds = getBounds();
            if (bounds.width <= 0 || bounds.height <= 0) return;

            var word = document.createElement('div');
            word.className = 'miss-word';
            word.textContent = '我想你';

            // 随机大小
            var rand = Math.random();
            var fontSize;
            if (rand < 0.5) {
                fontSize = 12 + Math.random() * 20;
            } else if (rand < 0.8) {
                fontSize = 32 + Math.random() * 40;
            } else {
                fontSize = 72 + Math.random() * 58;
            }
            word.style.fontSize = fontSize + 'px';

            // 随机位置
            var left = Math.random() * (bounds.width - Math.min(150, bounds.width - 10));
            var top = Math.random() * (bounds.height - 50);
            word.style.left = left + 'px';
            word.style.top = top + 'px';

            word.style.color = '#000000';
            word.style.opacity = '0';

            $overlay[0].appendChild(word);

            // 淡入
            setTimeout(function() {
                if (word.parentNode) {
                    word.style.opacity = '0.85';
                }
            }, 5);

            // 限制数量
            if ($overlay[0].children.length > 1500) {
                var toRemove = $overlay[0].children.length - 1200;
                for (var i = 0; i < toRemove; i++) {
                    if ($overlay[0].children[i]) {
                        $overlay[0].children[i].remove();
                    }
                }
            }
        }

        // 批量添加
        function addBatch(count) {
            for (var i = 0; i < count; i++) {
                (function(idx) {
                    setTimeout(function() { addMissWord(); }, idx * 15);
                })(i);
            }
        }

        // 检查覆盖度并触发终局
        function checkCoverageAndFinish() {
            if (isFinished || !isFlooding) return;
            var count = $overlay[0].children.length;
            if (count >= 600 || (currentSpeed <= 30 && count >= 350)) {
                finishAndBlackout();
            }
        }

        // 终局效果
        function finishAndBlackout() {
            if (isFinished) return;
            isFinished = true;
            isFlooding = false;

            // 停止所有定时器
            clearInterval(addInterval);
            clearInterval(coverCheckInterval);
            clearInterval(speedTimer);
            if (batchFastInterval) clearInterval(batchFastInterval);

            // 快速添加最后一批
            for (var i = 0; i < 100; i++) {
                (function(idx) {
                    setTimeout(function() { addMissWord(); }, idx * 8);
                })(i);
            }

            // 黑色遮罩淡入
            $blackout.addClass('show');

            // 延迟显示红色大字
            setTimeout(function() {
                $final.addClass('show');
            }, 800);
        }

        // 加速
        function increaseSpeed() {
            if (!isFlooding || isFinished) return;

            speedLevel++;
            if (speedLevel <= 20) {
                currentSpeed = Math.max(25, currentSpeed * 0.85);
            } else if (speedLevel <= 40) {
                currentSpeed = Math.max(12, currentSpeed * 0.92);
            } else {
                currentSpeed = Math.max(6, currentSpeed * 0.95);
            }

            clearInterval(addInterval);
            addInterval = setInterval(function() {
                if (isFlooding && !isFinished) {
                    addMissWord();
                    if (Math.random() < 0.25) {
                        setTimeout(function() { addMissWord(); }, 8);
                    }
                }
            }, currentSpeed);

            if (currentSpeed < 40 && isFlooding && !isFinished) {
                if (batchFastInterval) clearInterval(batchFastInterval);
                batchFastInterval = setInterval(function() {
                    if (isFlooding && !isFinished) {
                        for (var i = 0; i < 4; i++) {
                            (function(idx) {
                                setTimeout(function() { addMissWord(); }, idx * 10);
                            })(i);
                        }
                    }
                }, 1200);
            }
        }

        // 启动蔓延
        function startFlooding() {
            if (isFlooding || isFinished) return;
            isFlooding = true;

            // 初始批次
            addBatch(25);

            currentSpeed = 550;
            addInterval = setInterval(function() {
                if (isFlooding && !isFinished) {
                    addMissWord();
                    if (Math.random() < 0.2) {
                        setTimeout(function() { addMissWord(); }, 8);
                    }
                }
            }, currentSpeed);

            speedTimer = setInterval(function() {
                if (isFlooding && !isFinished) {
                    increaseSpeed();
                } else {
                    clearInterval(speedTimer);
                }
            }, 1000);

            coverCheckInterval = setInterval(function() {
                checkCoverageAndFinish();
            }, 300);
        }

        // 1秒后开始
        setTimeout(function() {
            if (!isFlooding && !isFinished) {
                startFlooding();
            }
        }, 1000);

        console.log('[空山新雨后] 蔓延效果已初始化');
    });
})();