1 files changed, 64 insertions, 0 deletions
diff --git a/src/Java/gtPlusPlus/api/objects/minecraft/BTF_Inventory.java b/src/Java/gtPlusPlus/api/objects/minecraft/BTF_Inventory.java
index 25968f1908..04ce0dff19 100644
--- a/src/Java/gtPlusPlus/api/objects/minecraft/BTF_Inventory.java
+++ b/src/Java/gtPlusPlus/api/objects/minecraft/BTF_Inventory.java
@@ -4,6 +4,7 @@ import java.util.ArrayList;
 
 import gregtech.api.util.GT_Utility;
 import gtPlusPlus.core.tileentities.base.TileEntityBase;
+import gtPlusPlus.core.util.data.ArrayUtils;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.inventory.ISidedInventory;
 import net.minecraft.item.ItemStack;
@@ -19,6 +20,7 @@ public class BTF_Inventory implements ISidedInventory{
 	}
 
 	public ItemStack[] getRealInventory() {
+		purgeNulls();
 		return this.mInventory;
 	}
 	
@@ -139,6 +141,7 @@ public class BTF_Inventory implements ISidedInventory{
 
 	public void markDirty() {
 		if (mTile != null) {
+			purgeNulls();
 			mTile.markDirty();
 		}
 	}
@@ -160,5 +163,66 @@ public class BTF_Inventory implements ISidedInventory{
 		return  this.mTile != null ? mTile.getInventoryName() : "";
 	}
 
+	public boolean isFull() {
+		for (int s=0;s<this.getSizeInventory();s++) {
+			ItemStack slot = mInventory[s];
+			if (slot == null || slot.stackSize != slot.getMaxStackSize()) {
+				return false;
+			}
+		}
+		return true;
+	}
+	
+	public boolean isEmpty() {
+		for (int s=0;s<this.getSizeInventory();s++) {
+			ItemStack slot = mInventory[s];
+			if (slot == null) {
+				continue;
+			}
+			else {
+				return false;
+			}
+		}
+		return true;
+	}
+
+	public boolean addItemStack(ItemStack aInput) {		
+		if (aInput != null & (isEmpty() || !isFull())) {
+			for (int s = 0; s < this.getSizeInventory(); s++) {
+				if (mInventory != null && mInventory[s] != null) {
+					ItemStack slot = mInventory[s];
+					if (slot == null || (slot != null && GT_Utility.areStacksEqual(aInput, slot) && slot.stackSize != slot.getItem().getItemStackLimit(slot))) {
+						if (slot == null) {
+							slot = aInput.copy();
+						} else {
+							slot.stackSize++;
+						}
+						this.setInventorySlotContents(s, slot);
+						return true;
+					}
+				}
+			}
+		}
+		return false;
+	}
+	
+	public final void purgeNulls() {
+		ItemStack[] aTemp = ArrayUtils.removeNulls(this.mInventory);
+		for (int g=0;g<this.getSizeInventory();g++) {
+			if (aTemp.length < this.getSizeInventory()) {
+				if (g <= aTemp.length-1) {
+					this.mInventory[g] = aTemp[g];
+				}
+				else {
+					this.mInventory[g] = null;
+				}
+			}
+			else {
+				this.mInventory[g] = aTemp[g];				
+			}		
+		}
+		
+	}
+
 
 }