From 40432e083b11271cf3148b9c38156cf759436699 Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Tue, 5 Sep 2023 23:22:33 -0400
Subject: Initial code dump.

---
 .../trashyaddon/commands/MapDumpCommand.java       | 81 ++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 src/main/java/org/chrisoft/trashyaddon/commands/MapDumpCommand.java

(limited to 'src/main/java/org/chrisoft/trashyaddon/commands/MapDumpCommand.java')

diff --git a/src/main/java/org/chrisoft/trashyaddon/commands/MapDumpCommand.java b/src/main/java/org/chrisoft/trashyaddon/commands/MapDumpCommand.java
new file mode 100644
index 0000000..667501a
--- /dev/null
+++ b/src/main/java/org/chrisoft/trashyaddon/commands/MapDumpCommand.java
@@ -0,0 +1,81 @@
+package org.chrisoft.trashyaddon.commands;
+
+import com.mojang.brigadier.builder.LiteralArgumentBuilder;
+import meteordevelopment.meteorclient.MeteorClient;
+import meteordevelopment.meteorclient.commands.Command;
+import net.minecraft.command.CommandSource;
+import net.minecraft.entity.EntityType;
+import net.minecraft.entity.decoration.ItemFrameEntity;
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.entity.Entity;
+import net.minecraft.item.FilledMapItem;
+import net.minecraft.item.map.MapState;
+import net.minecraft.util.Util;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.nio.ByteOrder;
+import java.util.zip.GZIPOutputStream;
+import java.nio.ByteBuffer;
+import java.nio.charset.StandardCharsets;
+import java.util.Vector;
+import java.util.OptionalInt;
+
+import static com.mojang.brigadier.Command.SINGLE_SUCCESS;
+
+public class MapDumpCommand extends Command {
+    private final MinecraftClient mc = MinecraftClient.getInstance();
+    public MapDumpCommand() {
+        super("md", "Dump all maps in view distance.");
+    }
+
+    @Override
+    public void build(LiteralArgumentBuilder<CommandSource> builder) {
+        builder.executes(context -> {
+            int nmaps = 0;
+            Vector<ByteBuffer> bufs = new Vector<>();
+            for (Entity e : mc.world.getEntities()) {
+                if (e.getType() != EntityType.ITEM_FRAME && e.getType() != EntityType.GLOW_ITEM_FRAME)
+                    continue;
+                ItemFrameEntity ife = (ItemFrameEntity) e;
+                OptionalInt oid = ife.getMapId();
+                if (oid.isEmpty())
+                    continue;
+                int id = oid.getAsInt();
+                MapState mapState = FilledMapItem.getMapState(id, mc.world);
+                if (mapState == null)
+                    continue;
+                String name = ife.getHeldItemStack().hasCustomName() ? ife.getHeldItemStack().getName().getString() : "";
+                byte[] u8name = name.getBytes(StandardCharsets.UTF_8);
+                int bsz = 4 + 4 + u8name.length + 16384;
+                ByteBuffer buf = ByteBuffer.allocate(bsz);
+                buf.order(ByteOrder.LITTLE_ENDIAN);
+                buf.putInt(id);
+                buf.putInt(u8name.length);
+                buf.put(u8name);
+                buf.put(mapState.colors);
+                bufs.add(buf);
+                ++nmaps;
+            }
+            info("Maps found: " + nmaps);
+            try {
+                File dirpath = new File(MeteorClient.FOLDER, "mapman");
+                if (!dirpath.isDirectory())
+                    dirpath.mkdir();
+                File dumppath = new File(dirpath, "md-" + Util.getFormattedCurrentTime() + ".gz");
+                FileOutputStream fo = new FileOutputStream(dumppath);
+                GZIPOutputStream output = new GZIPOutputStream(fo);
+                for (ByteBuffer buf : bufs)
+                    output.write(buf.array());
+                output.close();
+                fo.close();
+                info("Maps dumped to " + dumppath.toString());
+            }
+            catch (Exception e) {
+                error("Cannot write output:" + e.getMessage());
+                return 0;
+            }
+            return SINGLE_SUCCESS;
+        });
+    }
+}
-- 
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