From 7b35f32f3de012ccb0ccabe9086cffddcfe0bd00 Mon Sep 17 00:00:00 2001
From: Edoardo Prezioso <edo88@email.it>
Date: Thu, 21 Apr 2016 15:28:51 +0200
Subject: [PATCH] - Added the 'GiveInventory' method to the actor.

This will help cleaning up the item giving code. Returns a bool, in case the pickup failure might turn to be interesting in the future.
---
 src/actor.h    |  4 ++++
 src/p_mobj.cpp | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+)

diff --git a/src/actor.h b/src/actor.h
index 8741a9597f..a56d0d6d93 100644
--- a/src/actor.h
+++ b/src/actor.h
@@ -661,6 +661,10 @@ public:
 	// Adds the item to this actor's inventory and sets its Owner.
 	virtual void AddInventory (AInventory *item);
 
+	// Give an item to the actor and pick it up.
+	// Returns true if the item pickup succeeded.
+	virtual bool GiveInventory (PClassInventory *type, int amount, bool givecheat = false);
+
 	// Removes the item from the inventory list.
 	virtual void RemoveInventory (AInventory *item);
 
diff --git a/src/p_mobj.cpp b/src/p_mobj.cpp
index 46bc320dfc..b7d8871951 100644
--- a/src/p_mobj.cpp
+++ b/src/p_mobj.cpp
@@ -612,6 +612,62 @@ void AActor::AddInventory (AInventory *item)
 	Inventory->InventoryID = InventoryID++;
 }
 
+//============================================================================
+//
+// AActor :: GiveInventory
+//
+//============================================================================
+
+bool AActor::GiveInventory(PClassInventory *type, int amount, bool givecheat)
+{
+	bool result = true;
+
+	AWeapon *savedPendingWeap = player != NULL ? player->PendingWeapon : NULL;
+	bool hadweap = player != NULL ? player->ReadyWeapon != NULL : true;
+
+	AInventory *item;
+	if (!givecheat)
+	{
+		item = static_cast<AInventory *>(Spawn (type));
+	}
+	else
+	{
+		item = static_cast<AInventory *>(Spawn (type, Pos(), NO_REPLACE));
+		if (item == NULL) return false;
+	}
+
+	// This shouldn't count for the item statistics!
+	item->ClearCounters();
+	if (type->IsDescendantOf (RUNTIME_CLASS(ABasicArmorPickup)))
+	{
+		static_cast<ABasicArmorPickup*>(item)->SaveAmount *= amount;
+	}
+	else if (type->IsDescendantOf (RUNTIME_CLASS(ABasicArmorBonus)))
+	{
+		static_cast<ABasicArmorBonus*>(item)->SaveAmount *= amount;
+	}
+	else
+	{
+		if (!givecheat)
+			item->Amount = amount;
+		else
+			item->Amount = MIN (amount, item->MaxAmount);
+	}
+	if (!item->CallTryPickup (this))
+	{
+		item->Destroy ();
+		result = false;
+	}
+	// If the item was a weapon, don't bring it up automatically
+	// unless the player was not already using a weapon.
+	// Don't bring it up automatically if this is called by the give cheat.
+	if (!givecheat && player != NULL && savedPendingWeap != NULL && hadweap)
+	{
+		player->PendingWeapon = savedPendingWeap;
+	}
+	return result;
+}
+
 //============================================================================
 //
 // AActor :: RemoveInventory