fix: fix speed up will reverse gif

src/main/kotlin/cn/rtast/fancybot/FancyBot.kt

@@ -94,40 +94,27 @@ class FancyBot : OneBotListener {
             val plainTextContent = getMsg.message
                 .filter { it.type == ArrayMessageType.text }
                 .joinToString { it.data.text!! }
-            if (command.contains("加速")) {
-                val multiply = command.split("加速").last().toFloat()
-                SpeedUpGIFCommand.speedUp(message, getMsg, multiply)
-            }
-            if (command.contains("倒放") || command.contains("/df")) {
-                // 使用回复消息的方式对一个gif倒放
-                ReverseGIFCommand.reverse(message, getMsg)
-            }
-            if (command.contains("/sl") || command.contains("/short")) {
-                // 使用回复消息的方式快速对一个url消息创建一个短链接
-                message.reply(plainTextContent.trim().makeShortLink())
-            }
-            if (command.contains("/pb") || command.contains("/pastebin")) {
-                // 使用回复消息的方式快速将创建一个pastebin
-                val pastebinUrl = PastebinCommand.createPastebin(plainTextContent)
-                message.reply(pastebinUrl)
-            }
+            if (command.contains("倒放") || command.contains("/df")) ReverseGIFCommand.reverse(message, getMsg)
+            if (command.contains("图来") || command.contains("图链")) ImageURLCommand.callback(message, getMsg)
+            if (command.contains("reaction")) ReactionCommand.reaction(message)
+            if (command.contains("图床")) ImageBedCommand.execute(getMsg, message)
+            if (command.contains("/sl") || command.contains("/short")) message.reply(
+                plainTextContent.trim().makeShortLink()
+            )
             if (command.contains("/ascii") || command.contains("/asc")) {
                 // 使用回复消息的方式直接对一个图片进行生成Ascii art的操作
                 val url = AsciiArtCommand.getImageUrl(getMsg)
                 val image = AsciiArtCommand.generateAsciiArt(url)
                 message.reply(image)
             }
-            if (command.contains("图来") || command.contains("图链")) {
-                // 获取一个或多个图片的链接, 并且生成一个或多个短链接
-                ImageURLCommand.callback(message, getMsg)
+            if (command.contains("/pb") || command.contains("/pastebin")) {
+                // 使用回复消息的方式快速将创建一个pastebin
+                val pastebinUrl = PastebinCommand.createPastebin(plainTextContent)
+                message.reply(pastebinUrl)
             }
-            if (command.contains("reaction")) {
-                // 使用reaction刷屏回应一条消息
-                ReactionCommand.reaction(message)
-            }
-            if (command.contains("图床")) {
-                // 将一个图片上传到图床
-                ImageBedCommand.execute(getMsg, message)
+            if (command.contains("加速")) {
+                val multiply = command.split("加速").last().toFloat()
+                SpeedUpGIFCommand.speedUp(message, getMsg, multiply)
             }
         }
 

src/main/kotlin/cn/rtast/fancybot/commands/reply/SpeedUpGIFCommand.kt

@@ -23,7 +23,7 @@ object SpeedUpGIFCommand {
         val gifStream = gifUrl.toURL().openStream()
         val decoder = GifDecoder()
         decoder.read(gifStream)
-        val frames = (0 until decoder.frameCount).map { decoder.getFrame(it) }.reversed()
+        val frames = (0 until decoder.frameCount).map { decoder.getFrame(it) }
         val gifBase64 = decoder.makeGif(frames, multiply)
         val imgBedUrl = ImageBed.upload(gifBase64)
         val shortLink = imgBedUrl.makeShortLink()

src/main/kotlin/cn/rtast/fancybot/util/misc/Image.kt

@@ -8,6 +8,7 @@
 package cn.rtast.fancybot.util.misc
 
 import cn.rtast.fancybot.configManager
+import java.awt.Color
 import java.awt.Graphics2D
 import java.awt.geom.Ellipse2D
 import java.awt.geom.RoundRectangle2D
@@ -129,3 +130,19 @@ fun BufferedImage.isFullyTransparent(): Boolean {
     }
     return true
 }
+
+fun BufferedImage.toGrayscale(): BufferedImage {
+    val width = this.width
+    val height = this.height
+    val grayscaleImage = BufferedImage(width, height, BufferedImage.TYPE_BYTE_GRAY)
+
+    for (y in 0 until height) {
+        for (x in 0 until width) {
+            val color = Color(this.getRGB(x, y))
+            val gray = (color.red * 0.299 + color.green * 0.587 + color.blue * 0.114).toInt()
+            val grayColor = Color(gray, gray, gray)
+            grayscaleImage.setRGB(x, y, grayColor.rgb)
+        }
+    }
+    return grayscaleImage
+}