Fixed unused, Knapsack, and Canister slots

src/tconstruct/inventory/ArmorExtendedContainer.java

@@ -16,13 +16,13 @@ public ArmorExtendedContainer(InventoryPlayer inventoryplayer, ArmorExtended arm
         invPlayer = inventoryplayer;
         this.armor = armor;
 
-        this.addSlotToContainer(new Slot(armor, 0, 80, 17));
-        this.addSlotToContainer(new Slot(armor, 1, 80, 35));
-        this.addSlotToContainer(new Slot(armor, 2, 116, 17));
-        this.addSlotToContainer(new Slot(armor, 3, 116, 35));
-        this.addSlotToContainer(new Slot(armor, 4, 152, 17));
-        this.addSlotToContainer(new Slot(armor, 5, 152, 35));
-        this.addSlotToContainer(new Slot(armor, 6, 152, 53));
+        this.addSlotToContainer(new SlotUnused(armor, 0, 80, 17));
+        this.addSlotToContainer(new SlotUnused(armor, 1, 80, 35));
+        this.addSlotToContainer(new SlotKnapsack(armor, 2, 116, 17));
+        this.addSlotToContainer(new SlotUnused(armor, 3, 116, 35));
+        this.addSlotToContainer(new SlotUnused(armor, 4, 152, 17));
+        this.addSlotToContainer(new SlotUnused(armor, 5, 152, 35));
+        this.addSlotToContainer(new SlotCanister(armor, 6, 152, 53));
 
         /* Player inventory */
         for (int playerArmor = 0; playerArmor < 4; ++playerArmor)

src/tconstruct/inventory/SlotCanister.java

@@ -0,0 +1,34 @@
+package tconstruct.inventory;
+
+import tconstruct.items.armor.HeartCanister;
+import net.minecraft.inventory.IInventory;
+import net.minecraft.inventory.Slot;
+import net.minecraft.item.ItemStack;
+import net.minecraft.item.Item;
+
+public class SlotCanister extends Slot
+{
+    public SlotCanister(IInventory par2IInventory, int par3, int par4, int par5)
+    {
+        super(par2IInventory, par3, par4, par5);
+        this.parent = container;
+    }
+
+    /**
+     * Returns the maximum stack size for a given slot (usually the same as getInventoryStackLimit(), but 1 in the case
+     * of armor slots)
+     */
+    public int getSlotStackLimit ()
+    {
+        return 10;
+    }
+
+    /**
+     * Check if the stack is a valid item for this slot. Always true beside for the armor slots.
+     */
+    public boolean isItemValid (ItemStack par1ItemStack)
+    {
+        Item item = (par1ItemStack == null ? null : par1ItemStack.getItem());
+        return item != null && (item instanceof HeartCanister);
+    }
+}

src/tconstruct/inventory/SlotKnapsack.java

@@ -0,0 +1,34 @@
+package tconstruct.inventory;
+
+import tconstruct.items.armor.Knapsack;
+import net.minecraft.inventory.IInventory;
+import net.minecraft.inventory.Slot;
+import net.minecraft.item.ItemStack;
+import net.minecraft.item.Item;
+
+public class SlotKnapsack extends Slot
+{
+    public SlotKnapsack(IInventory par2IInventory, int par3, int par4, int par5)
+    {
+        super(par2IInventory, par3, par4, par5);
+        this.parent = container;
+    }
+
+    /**
+     * Returns the maximum stack size for a given slot (usually the same as getInventoryStackLimit(), but 1 in the case
+     * of armor slots)
+     */
+    public int getSlotStackLimit ()
+    {
+        return 1;
+    }
+
+    /**
+     * Check if the stack is a valid item for this slot. Always true beside for the armor slots.
+     */
+    public boolean isItemValid (ItemStack par1ItemStack)
+    {
+        Item item = (par1ItemStack == null ? null : par1ItemStack.getItem());
+        return item != null && (item instanceof Knapsack);
+    }
+}

src/tconstruct/inventory/SlotUnused.java

@@ -0,0 +1,30 @@
+package tconstruct.inventory;
+
+import net.minecraft.inventory.IInventory;
+import net.minecraft.inventory.Slot;
+import net.minecraft.item.ItemStack;
+
+public class SlotUnused extends Slot
+{
+    public SlotUnused(IInventory par2IInventory, int par3, int par4, int par5)
+    {
+        super(par2IInventory, par3, par4, par5);
+    }
+
+    /**
+     * Returns the maximum stack size for a given slot (usually the same as getInventoryStackLimit(), but 1 in the case
+     * of armor slots)
+     */
+    public int getSlotStackLimit ()
+    {
+        return 0;
+    }
+
+    /**
+     * Check if the stack is a valid item for this slot. Always true beside for the armor slots.
+     */
+    public boolean isItemValid (ItemStack par1ItemStack)
+    {
+        return false;
+    }
+}