From 51b91befbd26b630cd2cecaec081edd03edfb5f3 Mon Sep 17 00:00:00 2001
From: Howaner <franzi.moos@googlemail.com>
Date: Fri, 18 Jul 2014 23:11:59 +0200
Subject: Added RemoveItem() function to the player inventory.

---
 src/Inventory.cpp | 18 ++++++++++++++++++
 src/Inventory.h   |  3 +++
 src/ItemGrid.cpp  | 33 +++++++++++++++++++++++++++++++++
 src/ItemGrid.h    |  3 +++
 4 files changed, 57 insertions(+)

(limited to 'src')

diff --git a/src/Inventory.cpp b/src/Inventory.cpp
index 38d3c886d..5f7c24b60 100644
--- a/src/Inventory.cpp
+++ b/src/Inventory.cpp
@@ -151,6 +151,24 @@ int cInventory::AddItems(cItems & a_ItemStackList, bool a_AllowNewStacks, bool a
 
 
 
+int cInventory::RemoveItem(const cItem & a_ItemStack)
+{
+	int RemovedItems = m_HotbarSlots.RemoveItem(a_ItemStack);
+
+	if (RemovedItems < a_ItemStack.m_ItemCount)
+	{
+		cItem Temp(a_ItemStack);
+		Temp.m_ItemCount -= RemovedItems;
+		RemovedItems += m_InventorySlots.RemoveItem(Temp);
+	}
+
+	return RemovedItems;
+}
+
+
+
+
+
 bool cInventory::RemoveOneEquippedItem(void)
 {
 	if (m_HotbarSlots.GetSlot(m_EquippedSlotNum).IsEmpty())
diff --git a/src/Inventory.h b/src/Inventory.h
index e25fc4a8a..6e32536b3 100644
--- a/src/Inventory.h
+++ b/src/Inventory.h
@@ -86,6 +86,9 @@ public:
 	*/
 	int AddItems(cItems & a_ItemStackList, bool a_AllowNewStacks, bool a_tryToFillEquippedFirst);
 
+	/** Remove the specified item with the specified amount from the inventory. Returns the amount from the items were was removed. */
+	int RemoveItem(const cItem & a_ItemStack);
+
 	/** Removes one item out of the currently equipped item stack, returns true if successful, false if empty-handed */
 	bool RemoveOneEquippedItem(void);
 	
diff --git a/src/ItemGrid.cpp b/src/ItemGrid.cpp
index cd36b1f2a..38829cbf8 100644
--- a/src/ItemGrid.cpp
+++ b/src/ItemGrid.cpp
@@ -345,6 +345,39 @@ int cItemGrid::AddItems(cItems & a_ItemStackList, bool a_AllowNewStacks, int a_P
 
 
 
+int cItemGrid::RemoveItem(const cItem & a_ItemStack)
+{
+	int NumLeft = a_ItemStack.m_ItemCount;
+
+	for (int i = 0; i < m_NumSlots; i++)
+	{
+		if (NumLeft <= 0)
+		{
+			break;
+		}
+
+		if (m_Slots[i].IsEqual(a_ItemStack))
+		{
+			int NumToRemove = std::min(NumLeft, (int)m_Slots[i].m_ItemCount);
+			NumLeft -= NumToRemove;
+			m_Slots[i].m_ItemCount -= NumToRemove;
+
+			if (m_Slots[i].m_ItemCount <= 0)
+			{
+				m_Slots[i].Empty();
+			}
+
+			TriggerListeners(i);
+		}
+	}
+
+	return (a_ItemStack.m_ItemCount - NumLeft);
+}
+
+
+
+
+
 int cItemGrid::ChangeSlotCount(int a_SlotNum, int a_AddToCount)
 {
 	if ((a_SlotNum < 0) || (a_SlotNum >= m_NumSlots))
diff --git a/src/ItemGrid.h b/src/ItemGrid.h
index c34d5e9e2..6731b0065 100644
--- a/src/ItemGrid.h
+++ b/src/ItemGrid.h
@@ -96,6 +96,9 @@ public:
 	Returns the total number of items that fit.
 	*/
 	int AddItems(cItems & a_ItemStackList, bool a_AllowNewStacks = true, int a_PrioritarySlot = -1);
+
+	/** Remove the specified item with the specified amount from the inventory. Returns the amount from the items were was removed. */
+	int RemoveItem(const cItem & a_ItemStack);
 	
 	/** Adds (or subtracts, if a_AddToCount is negative) to the count of items in the specified slot.
 	If the slot is empty, ignores the call.
-- 
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