port steam machines to mui2

simplify usesMui2 checks

Author: ghzdude

src/main/java/gregtech/api/metatileentity/SimpleMachineMetaTileEntity.java

@@ -493,9 +493,8 @@ public void clearMachineInventory(@NotNull List<@NotNull ItemStack> itemBuffer)
 
     @Override
     public boolean usesMui2() {
-        RecipeMap<?> recipeMap = getRecipeMap();
-        if (recipeMap == null) return false;
-        return recipeMap.getRecipeMapUI().usesMui2();
+        RecipeMap<?> map = getRecipeMap();
+        return map != null && map.getRecipeMapUI().usesMui2();
     }
 
     @Override

src/main/java/gregtech/api/metatileentity/SteamMetaTileEntity.java

@@ -8,6 +8,8 @@
 import gregtech.api.gui.GuiTextures;
 import gregtech.api.gui.ModularUI;
 import gregtech.api.gui.widgets.ImageWidget;
+import gregtech.api.mui.GTGuiTheme;
+import gregtech.api.mui.GTGuis;
 import gregtech.api.recipes.RecipeMap;
 import gregtech.api.util.GTUtility;
 import gregtech.client.particle.VanillaParticleEffects;
@@ -34,6 +36,11 @@
 import codechicken.lib.render.pipeline.ColourMultiplier;
 import codechicken.lib.render.pipeline.IVertexOperation;
 import codechicken.lib.vec.Matrix4;
+import com.cleanroommc.modularui.api.drawable.IKey;
+import com.cleanroommc.modularui.factory.PosGuiData;
+import com.cleanroommc.modularui.screen.ModularPanel;
+import com.cleanroommc.modularui.value.sync.PanelSyncManager;
+import com.cleanroommc.modularui.widget.Widget;
 import org.apache.commons.lang3.ArrayUtils;
 import org.apache.commons.lang3.tuple.Pair;
 import org.jetbrains.annotations.Nullable;
@@ -43,6 +50,8 @@
 
 public abstract class SteamMetaTileEntity extends MetaTileEntity {
 
+    // todo quick and dirty fix to not show input tank in ui, find better solution
+    protected static final FluidTankList EMPTY = new FluidTankList(false);
     protected static final int STEAM_CAPACITY = 16000;
 
     protected final boolean isHighPressure;
@@ -127,6 +136,33 @@ public FluidTankList createImportFluidHandler() {
         return new FluidTankList(false, steamFluidTank);
     }
 
+    @Override
+    public boolean usesMui2() {
+        RecipeMap<?> map = getRecipeMap();
+        return map != null && map.getRecipeMapUI().usesMui2();
+    }
+
+    @Override
+    public ModularPanel buildUI(PosGuiData guiData, PanelSyncManager guiSyncManager) {
+        RecipeMap<?> map = Objects.requireNonNull(getRecipeMap());
+
+        ModularPanel modularPanel = GTGuis.defaultPanel(this);
+
+        Widget<?> widget = map.getRecipeMapUI().buildWidget(workableHandler::getProgressPercent, importItems,
+                exportItems, EMPTY, exportFluids, 0, guiSyncManager);
+
+        modularPanel.child(widget)
+                .child(IKey.lang(getMetaFullName()).asWidget().pos(5, 5))
+                .bindPlayerInventory();
+
+        return modularPanel;
+    }
+
+    @Override
+    public GTGuiTheme getUITheme() {
+        return isHighPressure ? GTGuiTheme.STEEL : GTGuiTheme.BRONZE;
+    }
+
     public ModularUI.Builder createUITemplate(EntityPlayer player) {
         return ModularUI.builder(GuiTextures.BACKGROUND_STEAM.get(isHighPressure), 176, 166)
                 .label(6, 6, getMetaFullName()).shouldColor(false)