small steps forward

src/main/java/de/jottyfan/minecraft/quickiefabric/container/BackpackInventory.java

@@ -48,7 +48,7 @@ public class BackpackInventory implements Inventory {
 	public DefaultedList<ItemStack> getList() {
 		return stacks;
 	}
-
+	
 	@Override
 	public void clear() {
 		stacks.clear();

src/main/java/de/jottyfan/minecraft/quickiefabric/container/BackpackScreen.java

@@ -1,5 +1,8 @@
 package de.jottyfan.minecraft.quickiefabric.container;
 
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
 import com.mojang.blaze3d.platform.GlStateManager;
 
 import de.jottyfan.minecraft.quickiefabric.init.RegistryManager;
@@ -14,9 +17,15 @@ import net.minecraft.text.Text;
 import net.minecraft.text.TranslatableText;
 import net.minecraft.util.Identifier;
 
+/**
+ * 
+ * @author jotty
+ *
+ */
 @Environment(EnvType.CLIENT)
 public class BackpackScreen extends HandledScreen<BackpackScreenHandler>
 		implements ScreenHandlerProvider<BackpackScreenHandler> {
+	private final static Logger LOGGER = LogManager.getLogger(BackpackScreen.class);
 	private final static Identifier TEXTURE = new Identifier(RegistryManager.QUICKIEFABRIC,
 			"textures/gui/backpack.png");
 	private final static Identifier SLOT_TEXTURE = new Identifier(RegistryManager.QUICKIEFABRIC,
@@ -33,7 +42,7 @@ public class BackpackScreen extends HandledScreen<BackpackScreenHandler>
 		super.init();
 		this.x = (this.width - this.containerWidth) / 2;
 	}
-
+	
 	private void drawSlots(MatrixStack matrices, int guiX, int guiY) {
 		this.client.getTextureManager().bindTexture(SLOT_TEXTURE);
 		for (int y = 0; y < (ItemBackpack.SLOTSIZE / 9); y++)

src/main/java/de/jottyfan/minecraft/quickiefabric/container/BackpackScreenHandler.java

@@ -1,8 +1,11 @@
 package de.jottyfan.minecraft.quickiefabric.container;
 
 import de.jottyfan.minecraft.quickiefabric.init.RegistryManager;
+import net.fabricmc.api.EnvType;
+import net.fabricmc.api.Environment;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.entity.player.PlayerInventory;
+import net.minecraft.inventory.Inventory;
 import net.minecraft.item.ItemStack;
 import net.minecraft.network.PacketByteBuf;
 import net.minecraft.screen.ScreenHandler;
@@ -43,6 +46,10 @@ public class BackpackScreenHandler extends ScreenHandler {
 	public PlayerEntity getPlayer() {
 		return this.player;
 	}
+	
+	public Inventory getInventory() {
+		return backpackInventory;
+	}
 
 	@Override
 	public boolean canUse(PlayerEntity playerEntity) {
@@ -57,13 +64,13 @@ public class BackpackScreenHandler extends ScreenHandler {
 	}
 
 	@Override
-	public ItemStack transferSlot(PlayerEntity player, int slotNum) {
+	public ItemStack transferSlot(PlayerEntity player, int slotIndex) {
 		ItemStack copy = ItemStack.EMPTY;
-		Slot chosenSlot = this.slots.get(slotNum);
+		Slot chosenSlot = this.slots.get(slotIndex);
 		if (chosenSlot != null && chosenSlot.hasStack()) {
 			ItemStack chosenStack = chosenSlot.getStack();
 			copy = chosenStack.copy();
-			if (slotNum < backpackInventory.size()) {
+			if (slotIndex < backpackInventory.size()) {
 				if (!this.insertItem(chosenStack, backpackInventory.size(), this.slots.size(), true)) {
 					return ItemStack.EMPTY;
 				}
@@ -78,4 +85,10 @@ public class BackpackScreenHandler extends ScreenHandler {
 		}
 		return copy;
 	}
+	
+    
+    @Environment(EnvType.CLIENT)
+    public int getRows() {
+        return 6;
+    } 
 }