start of modmenu config screen

src/main/java/com/kasetoatz/fastGhast/FastGhast.java

@@ -1,5 +1,8 @@
 package com.kasetoatz.fastghast;
 
+import com.kasetoatz.fastghast.configscreen.ConfigScreen;
+import com.terraformersmc.modmenu.api.ConfigScreenFactory;
+import com.terraformersmc.modmenu.api.ModMenuApi;
 import net.fabricmc.api.ModInitializer;
 import net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents;
 import net.minecraft.entity.Leashable;
@@ -10,7 +13,7 @@ import java.util.EnumSet;
 
 import static com.kasetoatz.fastghast.config.Config.load;
 
-public class Fastghast implements ModInitializer
+public class Fastghast implements ModInitializer, ModMenuApi
 {
     @Override
     public void onInitialize()
@@ -23,4 +26,10 @@ public class Fastghast implements ModInitializer
             }
         })));
     }
+
+    @Override
+    public ConfigScreenFactory<?> getModConfigScreenFactory()
+    {
+        return ConfigScreen::new;
+    }
 }

src/main/java/com/kasetoatz/fastGhast/configscreen/ConfigScreen.java

@@ -0,0 +1,60 @@
+package com.kasetoatz.fastghast.configscreen;
+
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.client.gui.widget.ButtonWidget;
+import net.minecraft.client.gui.widget.ThreePartsLayoutWidget;
+import net.minecraft.screen.ScreenTexts;
+import net.minecraft.text.Text;
+
+public class ConfigScreen extends Screen
+{
+    private final Screen parent;
+    private final ThreePartsLayoutWidget layout = new ThreePartsLayoutWidget(this);
+    private OptionList body;
+
+    public ConfigScreen(Screen parent)
+    {
+        super(Text.of("TEST SCREEN"));
+        this.parent = parent;
+    }
+
+    @Override
+    protected void init()
+    {
+        this.layout.addHeader(this.title, this.textRenderer);
+        this.body = new OptionList(this.client, this.layout.getWidth(), this.layout.getContentHeight(), this.layout.getHeaderHeight(), 25);
+        this.addItems();
+        this.layout.addBody(body);
+        this.layout.addFooter(ButtonWidget.builder(ScreenTexts.DONE, button -> this.close()).width(200).build());
+        this.layout.forEachChild(this::addDrawableChild);
+        this.refreshWidgetPositions();
+    }
+
+    private void addItems()
+    {
+        for (int i = 0; i < 20; i++)
+        {
+            ButtonWidget widget = ButtonWidget.builder(Text.of("TEST"), button -> System.out.println("button pressed")).build();
+            this.body.add(widget);
+        }
+    }
+
+    @Override
+    protected void refreshWidgetPositions()
+    {
+        this.layout.refreshPositions();
+        if (this.body != null)
+        {
+            this.body.position(this.width, this.layout);
+        }
+    }
+
+    @Override
+    public void close()
+    {
+        if (this.client != null)
+        {
+            this.client.setScreen(this.parent);
+        }
+    }
+}

src/main/java/com/kasetoatz/fastGhast/configscreen/Option.java

@@ -0,0 +1,40 @@
+package com.kasetoatz.fastghast.configscreen;
+
+import net.minecraft.client.gui.DrawContext;
+import net.minecraft.client.gui.Element;
+import net.minecraft.client.gui.Selectable;
+import net.minecraft.client.gui.widget.ClickableWidget;
+import net.minecraft.client.gui.widget.ElementListWidget;
+
+import java.util.List;
+
+public class Option extends ElementListWidget.Entry<Option>
+{
+    private final ClickableWidget widget;
+
+    public Option(ClickableWidget widget)
+    {
+        this.widget = widget;
+    }
+
+    @Override
+    public List<? extends Selectable> selectableChildren()
+    {
+        return List.of();
+    }
+
+    @Override
+    public List<? extends Element> children()
+    {
+        return List.of(this.widget);
+    }
+
+    @Override
+    public void render(DrawContext context, int mouseX, int mouseY, boolean hovered, float deltaTicks)
+    {
+        this.widget.setX(this.getX());
+        this.widget.setY(this.getY());
+        this.widget.setWidth(this.getWidth());
+        this.widget.render(context, mouseX, mouseY, deltaTicks);
+    }
+}

src/main/java/com/kasetoatz/fastGhast/configscreen/OptionList.java

@@ -0,0 +1,23 @@
+package com.kasetoatz.fastghast.configscreen;
+
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.gui.widget.*;
+
+public class OptionList extends ElementListWidget<Option>
+{
+    public OptionList(MinecraftClient client, int width, int height, int y, int itemHeight)
+    {
+        super(client, width, height, y, itemHeight);
+    }
+
+    @Override
+    public int getRowWidth()
+    {
+        return this.width - 30;
+    }
+
+    public void add(ClickableWidget widget)
+    {
+        this.addEntry(new Option(widget));
+    }
+}