Add neofetch in Minecraft

scripts/neofetch/convert.py

@@ -0,0 +1,52 @@
+# generated by https://asciiart.club
+import json
+
+html = """
+
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+
+
+
+""".replace('\n', '').replace("</span>", "").replace("<span", "").replace(" ", "")
+lines = html.split("<br>")
+
+
+def proc_line(s: str) -> list[dict]:
+    index = 0
+    result = []
+    length = 0
+    while index < len(s):
+        color_index = s.find("style=\"color:", index)
+        if color_index == -1:
+            result.append({
+                'text': s[index:],
+            })
+            break
+        else:
+            color = s[color_index + 13: color_index + 20]
+            str_start = s.find("\">", color_index) + 2
+            str_end = s.find("style=", str_start)
+            if str_end == -1:
+                str_end = len(s)
+            # in MC, the width of space is 4, but for chars, it's 6
+            text = s[str_start:str_end].replace("&nbsp;&nbsp;", "   ").replace("&nbsp;", " ")
+            for ch in text:
+                if ch == ' ':
+                    length += 4
+                else:
+                    length += 6
+            result.append({
+                'text': text,
+                'color': color
+            })
+            index = str_end
+    result.append({
+        'text': " " * ((120 - length) // 4),
+        'color': "#000000"
+    })
+    return result
+
+
+lines = [proc_line(line) for line in lines]
+with open("../../src/main/resources/assets/reden/minefetch/.json", "w") as f:
+    f.write(json.dumps(lines))

src/main/java/com/github/zly2006/reden/Reden.kt

@@ -13,37 +13,42 @@ import com.github.zly2006.reden.mixinhelper.UpdateMonitorHelper
 import com.github.zly2006.reden.network.registerChannels
 import com.github.zly2006.reden.rvc.registerRvc
 import com.github.zly2006.reden.transformers.ThisIsReden
+import com.github.zly2006.reden.utils.ResourceLoader
 import com.github.zly2006.reden.utils.ResourceLoader.loadLang
 import com.github.zly2006.reden.utils.TaskScheduler
+import com.github.zly2006.reden.utils.isClient
 import com.github.zly2006.reden.utils.server
 import com.google.gson.Gson
 import com.google.gson.GsonBuilder
+import com.google.gson.JsonArray
+import com.mojang.blaze3d.platform.GlDebugInfo
+import com.mojang.brigadier.arguments.StringArgumentType
 import com.redenmc.bragadier.ktdsl.register
 import com.redenmc.bragadier.ktdsl.then
 import fi.dy.masa.litematica.render.LitematicaRenderer
 import fi.dy.masa.litematica.world.SchematicWorldHandler
-import kotlinx.coroutines.DelicateCoroutinesApi
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.GlobalScope
-import kotlinx.coroutines.launch
+import kotlinx.coroutines.*
 import net.fabricmc.api.ModInitializer
 import net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
 import net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
 import net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
 import net.fabricmc.loader.api.FabricLoader
 import net.fabricmc.loader.api.Version
+import net.minecraft.SharedConstants
 import net.minecraft.client.MinecraftClient
 import net.minecraft.command.argument.BlockPosArgumentType
 import net.minecraft.command.argument.BlockStateArgumentType
 import net.minecraft.command.argument.ItemStackArgumentType
 import net.minecraft.entity.EntityStatuses
 import net.minecraft.network.packet.s2c.play.EntityStatusS2CPacket
 import net.minecraft.text.Text
+import net.minecraft.util.Formatting
 import net.minecraft.util.Identifier
 import org.jetbrains.annotations.Contract
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
 import java.util.*
+import kotlin.time.Duration.Companion.milliseconds
 
 
 class Reden : ModInitializer, CarpetExtension {
@@ -69,6 +74,8 @@ class Reden : ModInitializer, CarpetExtension {
         }
     }
 
+    private var serverStartTime: Long = 0
+
     override fun version(): String {
         return "reden"
     }
@@ -86,6 +93,7 @@ class Reden : ModInitializer, CarpetExtension {
         ServerLifecycleEvents.SERVER_STARTING.register {
             UpdateMonitorHelper.cleanup()
             server = it
+            serverStartTime = System.currentTimeMillis()
         }
         registerChannels()
         CarpetServer.manageExtension(this)
@@ -99,6 +107,78 @@ class Reden : ModInitializer, CarpetExtension {
                         1
                     }
                 }
+                literal("minefetch").executes { context ->
+                    val logo =
+                        try {
+                            context.getArgument("logo", String::class.java)
+                        } catch (_: IllegalArgumentException) {
+                            null
+                        } ?: "grass_block"
+                    val ja = Gson().fromJson(
+                        ResourceLoader.loadString("assets/reden/minefetch/$logo.json"),
+                        JsonArray::class.java
+                    )
+                    fun color(s: String) = s.map {
+                        Text.literal("█").formatted(Formatting.byCode(it))
+                    }.fold(Text.empty()) { acc, text -> acc.append(text) }
+
+                    val lineSeq = buildList<Text> {
+                        // @formatter:off
+                        add(Text.literal(context.source.name))
+                        add(Text.literal("-".repeat(context.source.name.length)))
+                        add(Text.literal("Minecraft ${SharedConstants.getGameVersion().name} (${server.serverModName})"))
+                        add(Text.literal("Reden $MOD_VERSION"))
+                        add(Text.literal("OS: ${System.getProperty("os.name")} ${System.getProperty("os.version")} ${System.getProperty("os.arch")}"))
+                        add(Text.literal("Java: " + System.getProperty("java.vm.name")
+                            .replace("vm", "", true)
+                            .replace("server", "", true)
+                            .trim() + " " + System.getProperty("java.vm.version")))
+                        add(Text.literal("MC Memory: ${(Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()) / 1024 / 1024}/${Runtime.getRuntime().maxMemory() / 1024 / 1024} MiB"))
+                        add(Text.literal("Server Uptime: ${(System.currentTimeMillis() - serverStartTime).milliseconds}"))
+                        // @formatter:on
+                        if (isClient) {
+                            val mc = MinecraftClient.getInstance()
+                            runBlocking(mc.asCoroutineDispatcher()) {
+                                buildList {
+                                    add(Text.literal("CPU: ${GlDebugInfo.getCpuInfo()}"))
+                                    add(Text.literal("Display: ${mc.window.framebufferWidth}x${mc.window.framebufferHeight} (${GlDebugInfo.getVendor()})"))
+                                    add(Text.literal("Driver: ${GlDebugInfo.getRenderer()}"))
+                                    add(Text.literal("OpenGL: ${GlDebugInfo.getVersion()}"))
+                                }
+                            }.let { addAll(it) }
+                        }
+                        add(Text.empty())
+                        add(color("01234567"))
+                        add(color("89abcdef"))
+                    }.iterator()
+                    var textLength = 0
+                    ja.asSequence().forEach {
+                        val text = Text.empty()
+                        for (t in it.asJsonArray) {
+                            text.append(Text.Serialization.fromJsonTree(t))
+                        }
+                        if (lineSeq.hasNext()) {
+                            text.append("  ").apply { }
+                            textLength = text.string.length
+                            text.append(lineSeq.next())
+                        }
+                        context.source.sendMessage(text)
+                    }
+                    lineSeq.forEachRemaining {
+                        context.source.sendMessage(Text.literal(" ".repeat(textLength)).append(it))
+                    }
+                    1
+                }
+            }
+            // forks etc
+            dispatcher.register {
+                literal("minefetch") {
+                    literal("--logo") {
+                        // todo: brigadier bug
+                        argument("logo", StringArgumentType.word())
+                            .redirect(dispatcher.root.getChild("minefetch"))
+                    }
+                }
             }
             // Debug command
             if (isRedenDev) {

src/main/java/com/github/zly2006/reden/RedenClient.kt

@@ -159,6 +159,19 @@ class RedenClient : ClientModInitializer {
                         relaunch(null)
                         1
                     }
+                    literal("neofetch") {
+                        literal("chars").executes {
+                            val renderer = MinecraftClient.getInstance().textRenderer
+                            val width = renderer.getWidth(" ")
+                            (0x20..0x7E)
+                                .map { it.toChar() }
+                                .groupBy { renderer.getWidth(it.toString()) }
+                                .forEach {
+                                    println("${it.key}: ${it.value.joinToString("")}")
+                                }
+                            1
+                        }
+                    }
                 }
             }
         })