add headless pregen dev command

core/src/main/java/com/volmit/iris/core/commands/CommandDeveloper.java

@@ -22,11 +22,14 @@ import com.volmit.iris.Iris;
 import com.volmit.iris.core.ServerConfigurator;
 import com.volmit.iris.core.loader.IrisData;
 import com.volmit.iris.core.nms.datapack.DataVersion;
+import com.volmit.iris.core.pregenerator.PregenTask;
+import com.volmit.iris.core.pregenerator.methods.HeadlessPregenMethod;
 import com.volmit.iris.core.service.IrisEngineSVC;
 import com.volmit.iris.core.tools.IrisPackBenchmarking;
 import com.volmit.iris.core.tools.IrisToolbelt;
 import com.volmit.iris.engine.framework.Engine;
 import com.volmit.iris.engine.object.IrisDimension;
+import com.volmit.iris.engine.platform.PlatformChunkGenerator;
 import com.volmit.iris.util.decree.DecreeExecutor;
 import com.volmit.iris.util.decree.DecreeOrigin;
 import com.volmit.iris.util.decree.annotations.Decree;
@@ -36,6 +39,7 @@ import com.volmit.iris.util.format.Form;
 import com.volmit.iris.util.io.CountingDataInputStream;
 import com.volmit.iris.util.io.IO;
 import com.volmit.iris.util.mantle.TectonicPlate;
+import com.volmit.iris.util.math.Position2;
 import com.volmit.iris.util.nbt.mca.MCAFile;
 import com.volmit.iris.util.nbt.mca.MCAUtil;
 import com.volmit.iris.util.parallel.MultiBurst;
@@ -48,6 +52,7 @@ import org.apache.commons.lang.RandomStringUtils;
 import org.bukkit.Bukkit;
 import org.bukkit.Chunk;
 import org.bukkit.World;
+import org.bukkit.util.Vector;
 
 import java.io.*;
 import java.net.InetAddress;
@@ -217,6 +222,43 @@ public class CommandDeveloper implements DecreeExecutor {
         sender.sendMessage(C.RED + "Failed to load " + failed.get() + " of " + keys.length + " objects");
     }
 
+    @Decree(description = "Pregenerate a world")
+    public void headless(
+            @Param(description = "The radius of the pregen in blocks", aliases = "size")
+            int radius,
+            @Param(description = "The world to pregen", contextual = true)
+            World world,
+            @Param(aliases = "middle", description = "The center location of the pregen. Use \"me\" for your current location", defaultValue = "0,0")
+            Vector center
+    ) {
+        try {
+            var engine = Optional.ofNullable(IrisToolbelt.access(world))
+                    .map(PlatformChunkGenerator::getEngine)
+                    .orElse(null);
+
+            if (engine == null) {
+                sender().sendMessage(C.RED + "The engine access for this world is null!");
+                sender().sendMessage(C.RED + "Please make sure the world is loaded & the engine is initialized. Generate a new chunk, for example.");
+            }
+            radius = Math.max(radius, 1024);
+            int w = (radius >> 9 + 1) * 2;
+            IrisToolbelt.pregenerate(PregenTask
+                    .builder()
+                    .center(new Position2(center.getBlockX() >> 9, center.getBlockZ() >> 9))
+                    .gui(true)
+                    .width(w)
+                    .height(w)
+                    .build(), new HeadlessPregenMethod(engine), engine);
+            String msg = C.GREEN + "Headless Pregen started in " + C.GOLD + world.getName() + C.GREEN + " of " + C.GOLD + (radius * 2) + C.GREEN + " by " + C.GOLD + (radius * 2) + C.GREEN + " blocks from " + C.GOLD + center.getX() + "," + center.getZ();
+            sender().sendMessage(msg);
+            Iris.info(msg);
+        } catch (Throwable e) {
+            sender().sendMessage(C.RED + "Epic fail. See console.");
+            Iris.reportError(e);
+            e.printStackTrace();
+        }
+    }
+
     @Decree(description = "Test", aliases = {"ip"})
     public void network() {
         try {