- Fixed noStudio null pointer when not in studio lol

- Added a debugger for when creating images

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

@@ -22,6 +22,7 @@ import com.volmit.iris.Iris;
 import com.volmit.iris.core.IrisSettings;
 import com.volmit.iris.core.gui.NoiseExplorerGUI;
 import com.volmit.iris.core.gui.VisionGUI;
+import com.volmit.iris.core.gui.components.IrisRenderer;
 import com.volmit.iris.core.loader.IrisData;
 import com.volmit.iris.core.project.IrisProject;
 import com.volmit.iris.core.service.ConversionSVC;
@@ -65,6 +66,9 @@ import org.bukkit.inventory.Inventory;
 import org.bukkit.util.BlockVector;
 import org.bukkit.util.Vector;
 
+import javax.imageio.ImageIO;
+import java.awt.Color;
+import java.awt.image.BufferedImage;
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
@@ -156,6 +160,37 @@ public class CommandStudio implements DecreeExecutor {
         sender().sendMessage(C.GREEN + "The \"" + dimension.getName() + "\" pack has version: " + dimension.getVersion());
     }
 
+    @Decree(description = "Debug image")
+    public void printImageChannel(
+            @Param(name = "image", description = "Image found in the image folder inside the project")
+            String image,
+            @Param(name = "channel", description = "Image channel")
+            IrisImageChannel channel
+    ) {
+        if (noStudio()) return;
+        try {
+            File file = new File(access().getEngine().getComplex().getData().getDataFolder(), "images/" + image);
+            if (!file.exists()) {
+                sender().sendMessage(C.RED + "The image \"" + image + "\" does not exist.");
+                return;
+            }
+            BufferedImage buffer = ImageIO.read(file);
+            IrisImage irisImage = new IrisImage(buffer);
+            File at = new File(file.getParentFile(), "debug-see-" + file.getName());
+            BufferedImage b = new BufferedImage(buffer.getWidth(), buffer.getHeight(), BufferedImage.TYPE_INT_RGB);
+            for (int i = 0; i < buffer.getWidth(); i++) {
+                for (int j = 0; j < buffer.getHeight(); j++) {
+                    b.setRGB(i, j, Color.getHSBColor(0, 0, (float) irisImage.getValue(channel, i, j)).getRGB());
+                }
+            }
+            ImageIO.write(b, "png", at);
+            sender().sendMessage(C.IRIS + "Debug image written to ./images for channel " + channel.name());
+        } catch (Exception e) {
+            sender().sendMessage(C.RED + "Something went wrong.. ");
+            e.printStackTrace();
+        }
+    }
+
     @Decree(name = "regen", description = "Regenerate nearby chunks.", aliases = "rg", sync = true, origin = DecreeOrigin.PLAYER)
     public void regen(
             @Param(name = "radius", description = "The radius of nearby cunks", defaultValue = "5")
@@ -849,7 +884,7 @@ public class CommandStudio implements DecreeExecutor {
             sender().sendMessage(C.RED + "No studio world is open!");
             return true;
         }
-        if (!engine().isStudio()) {
+       if (engine() == null || !engine().isStudio()) {
             sender().sendMessage(C.RED + "You must be in a studio world!");
             return true;
         }

core/src/main/java/com/volmit/iris/engine/object/IrisImage.java

@@ -123,8 +123,6 @@ public class IrisImage extends IrisRegistrant {
     }
 
     public void writeDebug(IrisImageChannel channel) {
-
-
         try {
             File at = new File(getLoadFile().getParentFile(), "debug-see-" + getLoadFile().getName());
             BufferedImage b = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_INT_RGB);

core/src/main/java/com/volmit/iris/util/decree/handlers/ImageChannelHandler.java

@@ -0,0 +1,53 @@
+/*
+ * Iris is a World Generator for Minecraft Bukkit Servers
+ * Copyright (c) 2022 Arcane Arts (Volmit Software)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.volmit.iris.util.decree.handlers;
+
+import com.volmit.iris.engine.object.IrisImageChannel;
+import com.volmit.iris.util.collection.KList;
+import com.volmit.iris.util.decree.DecreeParameterHandler;
+import com.volmit.iris.util.decree.exceptions.DecreeParsingException;
+
+import java.util.Arrays;
+
+public class ImageChannelHandler implements DecreeParameterHandler<IrisImageChannel> {
+    @Override
+    public KList<IrisImageChannel> getPossibilities() {
+        return new KList<>(Arrays.stream(IrisImageChannel.values()).toList());
+    }
+
+    @Override
+    public String toString(IrisImageChannel channel) {
+        return channel.toString();
+    }
+
+    @Override
+    public IrisImageChannel parse(String in, boolean force) throws DecreeParsingException {
+        return IrisImageChannel.valueOf(in);
+    }
+
+    @Override
+    public boolean supports(Class<?> type) {
+        return type.equals(IrisImageChannel.class);
+    }
+
+    @Override
+    public String getRandomDefault() {
+        return IrisImageChannel.BRIGHTNESS.toString();
+    }
+}