impl `TCreature::Move` which was absolute hell + some tidying up

1 files changed, 82 insertions, 0 deletions

diff --git a/src/operate.cc b/src/operate.cc
new file mode 100644
index 0000000..ef1ba01
--- /dev/null
+++ b/src/operate.cc
@@ -0,0 +1,82 @@
+#include "operate.hh"
+
+#include "stubs.hh"
+
+// TODO(fusion): This could have been a simple return value.
+void CheckContainerDestination(Object Obj, Object Con){
+	Object Help = Con;
+	while(Help != NONE && !Help.getObjectType().isMapContainer()){
+		if(Help == Obj){
+			throw CROSSREFERENCE;
+		}
+		Help = Help.getContainer();
+	}
+
+	ObjectType ConType = Con.getObjectType();
+	if(!ConType.getFlag(CHEST)){
+		int ConObjects = CountObjectsInContainer(Con);
+		int ConCapacity = (int)ConType.getAttribute(CAPACITY);
+		if(ConObjects >= ConCapacity){
+			throw CONTAINERFULL;
+		}
+	}
+}
+
+void CheckInventoryDestination(Object Obj, Object Con, bool Split){
+	ObjectType ObjType = Obj.getObjectType();
+	int ConPosition = GetObjectBodyPosition(Con);
+	bool HandContainer = ConPosition == INVENTORY_RIGHTHAND
+					|| ConPosition == INVENTORY_LEFTHAND;
+
+	if(!HandContainer && ConPosition != INVENTORY_AMMO){
+		if(!ObjType.getFlag(CLOTHES)){
+			throw WRONGPOSITION;
+		}
+
+		int ObjPosition = (int)ObjType.getAttribute(BODYPOSITION);
+		if(ObjPosition == 0){
+			throw WRONGPOSITION2;
+		}else if(ObjPosition != ConPosition){
+			throw WRONGCLOTHES;
+		}
+	}
+
+	uint32 CreatureID = GetObjectCreatureID(Con);
+	if(ObjType.isTwoHanded() && HandContainer){
+		Object RightHand = GetBodyObject(CreatureID, INVENTORY_RIGHTHAND);
+		if(RightHand != NONE && RightHand != Obj){
+			throw HANDSNOTFREE;
+		}
+
+		Object LeftHand = GetBodyObject(CreatureID, INVENTORY_LEFTHAND);
+		if(LeftHand != NONE && LeftHand != Obj){
+			throw HANDSNOTFREE;
+		}
+
+		return;
+	}
+
+	if(GetBodyObject(CreatureID, ConPosition) != NONE){
+		throw NOROOM;
+	}
+
+	if(HandContainer){
+		for(int Position = INVENTORY_HAND_FIRST;
+				Position <= INVENTORY_HAND_LAST;
+				Position += 1){
+			Object Other = GetBodyObject(CreatureID, Position);
+			if(Other != NONE){
+				ObjectType OtherType = Other.getObjectType();
+				if(OtherType.isTwoHanded()){
+					throw HANDBLOCKED;
+				}
+
+				if(Split || Other != Obj){
+					if(OtherType.isWeapon() && ObjType.isWeapon()){
+						throw ONEWEAPONONLY;
+					}
+				}
+			}
+		}
+	}
+}