Reformat ActorManager::checkForPickup for (visual) consistency with similar blocks in pickup search functions

This block repeats many times.. but cannot be de-duplicated without that
pesky search for empty string. perhaps I should make an (inline) function
that takes allowAll and the item or a scoped functor that does the lookup in
constructor.

****
mana/plus!166

1 files changed, 14 insertions, 6 deletions

diff --git a/src/actormanager.cpp b/src/actormanager.cpp
index e33798bab..73248cab3 100644
--- a/src/actormanager.cpp
+++ b/src/actormanager.cpp
@@ -2071,18 +2071,26 @@ void ActorManager::storeAttackList() const
 
 bool ActorManager::checkForPickup(const FloorItem *const item) const
 {
-    if (mPickupItemsSet.find(std::string()) != mPickupItemsSet.end())
+    // if "default" is in pickup items set, then the ignore list acts
+    // as a blacklist. Otherwise, the pickup list acts as a whitelist.
+    const bool allowAll = mPickupItemsSet.find(std::string())
+                       != mPickupItemsSet.end();
+
+    if (allowAll)
     {
-        if (mIgnorePickupItemsSet.find(item->getName())
-            == mIgnorePickupItemsSet.end())
+        if (mIgnorePickupItemsSet.find(item->getName()) ==
+            mIgnorePickupItemsSet.end())
         {
             return true;
         }
     }
-    else if ((item != nullptr) && mPickupItemsSet.find(item->getName())
-             != mPickupItemsSet.end())
+    else
     {
-        return true;
+        if (mPickupItemsSet.find(item->getName()) !=
+            mPickupItemsSet.end())
+        {
+            return true;
+        }
     }
     return false;
 }