X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=src%2Finventorymanager.cpp;h=51a472a569b49736252ac46b6a59168f68d1d771;hb=38f6e7a1981a8dcba9bfa9aa32ca77cd19a960aa;hp=d23d1529dc8223950b81df6ed43d432c5ac68c03;hpb=2e44873ac987c484ef7f9ace5eeabfd376f6d8f8;p=oweals%2Fminetest.git

diff --git a/src/inventorymanager.cpp b/src/inventorymanager.cpp
index d23d1529d..51a472a56 100644
--- a/src/inventorymanager.cpp
+++ b/src/inventorymanager.cpp
@@ -18,16 +18,16 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 */
 
 #include "inventorymanager.h"
+#include "debug.h"
 #include "log.h"
-#include "environment.h"
-#include "scripting_game.h"
+#include "serverenvironment.h"
+#include "scripting_server.h"
 #include "serverobject.h"
 #include "settings.h"
 #include "craftdef.h"
 #include "rollback_interface.h"
-#include "strfnd.h"
-
-#define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
+#include "util/strfnd.h"
+#include "util/basic_macros.h"
 
 #define PLAYER_TO_SA(p)   p->getEnv()->getScriptIface()
 
@@ -44,7 +44,7 @@ std::string InventoryLocation::dump() const
 
 void InventoryLocation::serialize(std::ostream &os) const
 {
-	switch(type){
+	switch (type) {
 	case InventoryLocation::UNDEFINED:
 		os<<"undefined";
 		break;
@@ -69,21 +69,14 @@ void InventoryLocation::deSerialize(std::istream &is)
 {
 	std::string tname;
 	std::getline(is, tname, ':');
-	if(tname == "undefined")
-	{
+	if (tname == "undefined") {
 		type = InventoryLocation::UNDEFINED;
-	}
-	else if(tname == "current_player")
-	{
+	} else if (tname == "current_player") {
 		type = InventoryLocation::CURRENT_PLAYER;
-	}
-	else if(tname == "player")
-	{
+	} else if (tname == "player") {
 		type = InventoryLocation::PLAYER;
 		std::getline(is, name, '\n');
-	}
-	else if(tname == "nodemeta")
-	{
+	} else if (tname == "nodemeta") {
 		type = InventoryLocation::NODEMETA;
 		std::string pos;
 		std::getline(is, pos, '\n');
@@ -91,14 +84,10 @@ void InventoryLocation::deSerialize(std::istream &is)
 		p.X = stoi(fn.next(","));
 		p.Y = stoi(fn.next(","));
 		p.Z = stoi(fn.next(","));
-	}
-	else if(tname == "detached")
-	{
+	} else if (tname == "detached") {
 		type = InventoryLocation::DETACHED;
 		std::getline(is, name, '\n');
-	}
-	else
-	{
+	} else {
 		infostream<<"Unknown InventoryLocation type=\""<<tname<<"\""<<std::endl;
 		throw SerializationError("Unknown InventoryLocation type");
 	}
@@ -114,12 +103,12 @@ void InventoryLocation::deSerialize(std::string s)
 	InventoryAction
 */
 
-InventoryAction * InventoryAction::deSerialize(std::istream &is)
+InventoryAction *InventoryAction::deSerialize(std::istream &is)
 {
 	std::string type;
 	std::getline(is, type, ' ');
 
-	InventoryAction *a = NULL;
+	InventoryAction *a = nullptr;
 
 	if (type == "Move") {
 		a = new IMoveAction(is, false);
@@ -127,7 +116,7 @@ InventoryAction * InventoryAction::deSerialize(std::istream &is)
 		a = new IMoveAction(is, true);
 	} else if (type == "Drop") {
 		a = new IDropAction(is);
-	} else if(type == "Craft") {
+	} else if (type == "Craft") {
 		a = new ICraftAction(is);
 	}
 
@@ -138,12 +127,10 @@ InventoryAction * InventoryAction::deSerialize(std::istream &is)
 	IMoveAction
 */
 
-IMoveAction::IMoveAction(std::istream &is, bool somewhere)
+IMoveAction::IMoveAction(std::istream &is, bool somewhere) :
+		move_somewhere(somewhere)
 {
 	std::string ts;
-	move_somewhere = somewhere;
-	caused_by_move_somewhere = false;
-	move_count = 0;
 
 	std::getline(is, ts, ' ');
 	count = stoi(ts);
@@ -171,7 +158,7 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
 {
 	Inventory *inv_from = mgr->getInventory(from_inv);
 	Inventory *inv_to = mgr->getInventory(to_inv);
-	
+
 	if (!inv_from) {
 		infostream << "IMoveAction::apply(): FAIL: source inventory not found: "
 			<< "from_inv=\""<<from_inv.dump() << "\""
@@ -258,49 +245,41 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
 	*/
 	bool ignore_rollback = (
 		from_inv.type == InventoryLocation::PLAYER &&
-		to_inv.type == InventoryLocation::PLAYER &&
-		from_inv.name == to_inv.name);
+		from_inv == to_inv);
 
 	/*
 		Collect information of endpoints
 	*/
 
 	int try_take_count = count;
-	if(try_take_count == 0)
+	if (try_take_count == 0)
 		try_take_count = list_from->getItem(from_i).count;
 
 	int src_can_take_count = 0xffff;
 	int dst_can_put_count = 0xffff;
-	
+
 	/* Query detached inventories */
 
 	// Move occurs in the same detached inventory
-	if(from_inv.type == InventoryLocation::DETACHED &&
-			to_inv.type == InventoryLocation::DETACHED &&
-			from_inv.name == to_inv.name)
-	{
+	if (from_inv.type == InventoryLocation::DETACHED &&
+			from_inv == to_inv) {
 		src_can_take_count = PLAYER_TO_SA(player)->detached_inventory_AllowMove(
-				from_inv.name, from_list, from_i,
-				to_list, to_i, try_take_count, player);
+			*this, try_take_count, player);
 		dst_can_put_count = src_can_take_count;
-	}
-	else
-	{
+	} else {
 		// Destination is detached
-		if(to_inv.type == InventoryLocation::DETACHED)
-		{
+		if (to_inv.type == InventoryLocation::DETACHED) {
 			ItemStack src_item = list_from->getItem(from_i);
 			src_item.count = try_take_count;
 			dst_can_put_count = PLAYER_TO_SA(player)->detached_inventory_AllowPut(
-					to_inv.name, to_list, to_i, src_item, player);
+				*this, src_item, player);
 		}
 		// Source is detached
-		if(from_inv.type == InventoryLocation::DETACHED)
-		{
+		if (from_inv.type == InventoryLocation::DETACHED) {
 			ItemStack src_item = list_from->getItem(from_i);
 			src_item.count = try_take_count;
 			src_can_take_count = PLAYER_TO_SA(player)->detached_inventory_AllowTake(
-					from_inv.name, from_list, from_i, src_item, player);
+				*this, src_item, player);
 		}
 	}
 
@@ -308,50 +287,67 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
 
 	// Both endpoints are nodemeta
 	// Move occurs in the same nodemeta inventory
-	if(from_inv.type == InventoryLocation::NODEMETA &&
-			to_inv.type == InventoryLocation::NODEMETA &&
-			from_inv.p == to_inv.p)
-	{
+	if (from_inv.type == InventoryLocation::NODEMETA &&
+			from_inv == to_inv) {
 		src_can_take_count = PLAYER_TO_SA(player)->nodemeta_inventory_AllowMove(
-				from_inv.p, from_list, from_i,
-				to_list, to_i, try_take_count, player);
+			*this, try_take_count, player);
 		dst_can_put_count = src_can_take_count;
-	}
-	else
-	{
+	} else {
 		// Destination is nodemeta
-		if(to_inv.type == InventoryLocation::NODEMETA)
-		{
+		if (to_inv.type == InventoryLocation::NODEMETA) {
 			ItemStack src_item = list_from->getItem(from_i);
 			src_item.count = try_take_count;
 			dst_can_put_count = PLAYER_TO_SA(player)->nodemeta_inventory_AllowPut(
-					to_inv.p, to_list, to_i, src_item, player);
+				*this, src_item, player);
 		}
 		// Source is nodemeta
-		if(from_inv.type == InventoryLocation::NODEMETA)
-		{
+		if (from_inv.type == InventoryLocation::NODEMETA) {
 			ItemStack src_item = list_from->getItem(from_i);
 			src_item.count = try_take_count;
 			src_can_take_count = PLAYER_TO_SA(player)->nodemeta_inventory_AllowTake(
-					from_inv.p, from_list, from_i, src_item, player);
+				*this, src_item, player);
+		}
+	}
+
+	// Query player inventories
+
+	// Move occurs in the same player inventory
+	if (from_inv.type == InventoryLocation::PLAYER &&
+			from_inv == to_inv) {
+		src_can_take_count = PLAYER_TO_SA(player)->player_inventory_AllowMove(
+			*this, try_take_count, player);
+		dst_can_put_count = src_can_take_count;
+	} else {
+		// Destination is a player
+		if (to_inv.type == InventoryLocation::PLAYER) {
+			ItemStack src_item = list_from->getItem(from_i);
+			src_item.count = try_take_count;
+			dst_can_put_count = PLAYER_TO_SA(player)->player_inventory_AllowPut(
+				*this, src_item, player);
+		}
+		// Source is a player
+		if (from_inv.type == InventoryLocation::PLAYER) {
+			ItemStack src_item = list_from->getItem(from_i);
+			src_item.count = try_take_count;
+			src_can_take_count = PLAYER_TO_SA(player)->player_inventory_AllowTake(
+				*this, src_item, player);
 		}
 	}
 
 	int old_count = count;
-	
+
 	/* Modify count according to collected data */
 	count = try_take_count;
-	if(src_can_take_count != -1 && count > src_can_take_count)
+	if (src_can_take_count != -1 && count > src_can_take_count)
 		count = src_can_take_count;
-	if(dst_can_put_count != -1 && count > dst_can_put_count)
+	if (dst_can_put_count != -1 && count > dst_can_put_count)
 		count = dst_can_put_count;
 	/* Limit according to source item count */
-	if(count > list_from->getItem(from_i).count)
+	if (count > list_from->getItem(from_i).count)
 		count = list_from->getItem(from_i).count;
-	
+
 	/* If no items will be moved, don't go further */
-	if(count == 0)
-	{
+	if (count == 0) {
 		infostream<<"IMoveAction::apply(): move was completely disallowed:"
 				<<" count="<<old_count
 				<<" from inv=\""<<from_inv.dump()<<"\""
@@ -375,28 +371,36 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
 		If something is wrong (source item is empty, destination is the
 		same as source), nothing happens
 	*/
+	bool did_swap = false;
 	move_count = list_from->moveItem(from_i,
-		list_to, to_i, count, !caused_by_move_somewhere);
+		list_to, to_i, count, !caused_by_move_somewhere, &did_swap);
 
 	// If source is infinite, reset it's stack
-	if(src_can_take_count == -1){
-		// If destination stack is of different type and there are leftover
-		// items, attempt to put the leftover items to a different place in the
-		// destination inventory.
-		// The client-side GUI will try to guess if this happens.
-		if(from_stack_was.name != to_stack_was.name){
-			for(u32 i=0; i<list_to->getSize(); i++){
-				if(list_to->getItem(i).empty()){
-					list_to->changeItem(i, to_stack_was);
-					break;
+	if (src_can_take_count == -1) {
+		// For the caused_by_move_somewhere == true case we didn't force-put the item,
+		// which guarantees there is no leftover, and code below would duplicate the
+		// (not replaced) to_stack_was item.
+		if (!caused_by_move_somewhere) {
+			// If destination stack is of different type and there are leftover
+			// items, attempt to put the leftover items to a different place in the
+			// destination inventory.
+			// The client-side GUI will try to guess if this happens.
+			if (from_stack_was.name != to_stack_was.name) {
+				for (u32 i = 0; i < list_to->getSize(); i++) {
+					if (list_to->getItem(i).empty()) {
+						list_to->changeItem(i, to_stack_was);
+						break;
+					}
 				}
 			}
 		}
-		list_from->deleteItem(from_i);
-		list_from->addItem(from_i, from_stack_was);
+		if (move_count > 0 || did_swap) {
+			list_from->deleteItem(from_i);
+			list_from->addItem(from_i, from_stack_was);
+		}
 	}
 	// If destination is infinite, reset it's stack and take count from source
-	if(dst_can_put_count == -1){
+	if (dst_can_put_count == -1) {
 		list_to->deleteItem(to_i);
 		list_to->addItem(to_i, to_stack_was);
 		list_from->deleteItem(from_i);
@@ -416,15 +420,20 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
 			<< " i=" << to_i
 			<< std::endl;
 
+	// If we are inside the move somewhere loop, we don't need to report
+	// anything if nothing happened (perhaps we don't need to report
+	// anything for caused_by_move_somewhere == true, but this way its safer)
+	if (caused_by_move_somewhere && move_count == 0)
+		return;
+
 	/*
 		Record rollback information
 	*/
-	if(!ignore_rollback && gamedef->rollback())
-	{
+	if (!ignore_rollback && gamedef->rollback()) {
 		IRollbackManager *rollback = gamedef->rollback();
 
 		// If source is not infinite, record item take
-		if(src_can_take_count != -1){
+		if (src_can_take_count != -1) {
 			RollbackAction action;
 			std::string loc;
 			{
@@ -437,7 +446,7 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
 			rollback->reportAction(action);
 		}
 		// If destination is not infinite, record item put
-		if(dst_can_put_count != -1){
+		if (dst_can_put_count != -1) {
 			RollbackAction action;
 			std::string loc;
 			{
@@ -454,62 +463,69 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
 	/*
 		Report move to endpoints
 	*/
-	
+
 	/* Detached inventories */
 
 	// Both endpoints are same detached
-	if(from_inv.type == InventoryLocation::DETACHED &&
-			to_inv.type == InventoryLocation::DETACHED &&
-			from_inv.name == to_inv.name)
-	{
+	if (from_inv.type == InventoryLocation::DETACHED &&
+			from_inv == to_inv) {
 		PLAYER_TO_SA(player)->detached_inventory_OnMove(
-				from_inv.name, from_list, from_i,
-				to_list, to_i, count, player);
-	}
-	else
-	{
+				*this, count, player);
+	} else {
 		// Destination is detached
-		if(to_inv.type == InventoryLocation::DETACHED)
-		{
+		if (to_inv.type == InventoryLocation::DETACHED) {
 			PLAYER_TO_SA(player)->detached_inventory_OnPut(
-					to_inv.name, to_list, to_i, src_item, player);
+				*this, src_item, player);
 		}
 		// Source is detached
-		if(from_inv.type == InventoryLocation::DETACHED)
-		{
+		if (from_inv.type == InventoryLocation::DETACHED) {
 			PLAYER_TO_SA(player)->detached_inventory_OnTake(
-					from_inv.name, from_list, from_i, src_item, player);
+				*this, src_item, player);
 		}
 	}
 
 	/* Node metadata inventories */
 
 	// Both endpoints are same nodemeta
-	if(from_inv.type == InventoryLocation::NODEMETA &&
-			to_inv.type == InventoryLocation::NODEMETA &&
-			from_inv.p == to_inv.p)
-	{
+	if (from_inv.type == InventoryLocation::NODEMETA &&
+			from_inv == to_inv) {
 		PLAYER_TO_SA(player)->nodemeta_inventory_OnMove(
-				from_inv.p, from_list, from_i,
-				to_list, to_i, count, player);
-	}
-	else{
+			*this, count, player);
+	} else {
 		// Destination is nodemeta
-		if(to_inv.type == InventoryLocation::NODEMETA)
-		{
+		if (to_inv.type == InventoryLocation::NODEMETA) {
 			PLAYER_TO_SA(player)->nodemeta_inventory_OnPut(
-					to_inv.p, to_list, to_i, src_item, player);
+				*this, src_item, player);
 		}
 		// Source is nodemeta
-		else if(from_inv.type == InventoryLocation::NODEMETA)
-		{
+		if (from_inv.type == InventoryLocation::NODEMETA) {
 			PLAYER_TO_SA(player)->nodemeta_inventory_OnTake(
-					from_inv.p, from_list, from_i, src_item, player);
+				*this, src_item, player);
+		}
+	}
+
+	// Player inventories
+
+	// Both endpoints are same player inventory
+	if (from_inv.type == InventoryLocation::PLAYER &&
+			from_inv == to_inv) {
+		PLAYER_TO_SA(player)->player_inventory_OnMove(
+			*this, count, player);
+	} else {
+		// Destination is player inventory
+		if (to_inv.type == InventoryLocation::PLAYER) {
+			PLAYER_TO_SA(player)->player_inventory_OnPut(
+				*this, src_item, player);
+		}
+		// Source is player inventory
+		if (from_inv.type == InventoryLocation::PLAYER) {
+			PLAYER_TO_SA(player)->player_inventory_OnTake(
+				*this, src_item, player);
 		}
 	}
-	
+
 	mgr->setInventoryModified(from_inv, false);
-	if(inv_from != inv_to)
+	if (inv_from != inv_to)
 		mgr->setInventoryModified(to_inv, false);
 }
 
@@ -520,18 +536,18 @@ void IMoveAction::clientApply(InventoryManager *mgr, IGameDef *gamedef)
 
 	Inventory *inv_from = mgr->getInventory(from_inv);
 	Inventory *inv_to = mgr->getInventory(to_inv);
-	if(!inv_from || !inv_to)
+	if (!inv_from || !inv_to)
 		return;
 
 	InventoryLocation current_player;
 	current_player.setCurrentPlayer();
 	Inventory *inv_player = mgr->getInventory(current_player);
-	if(inv_from != inv_player || inv_to != inv_player)
+	if (inv_from != inv_player || inv_to != inv_player)
 		return;
 
 	InventoryList *list_from = inv_from->getList(from_list);
 	InventoryList *list_to = inv_to->getList(to_list);
-	if(!list_from || !list_to)
+	if (!list_from || !list_to)
 		return;
 
 	if (!move_somewhere)
@@ -540,7 +556,7 @@ void IMoveAction::clientApply(InventoryManager *mgr, IGameDef *gamedef)
 		list_from->moveItemSomewhere(from_i, list_to, count);
 
 	mgr->setInventoryModified(from_inv);
-	if(inv_from != inv_to)
+	if (inv_from != inv_to)
 		mgr->setInventoryModified(to_inv);
 }
 
@@ -567,8 +583,8 @@ IDropAction::IDropAction(std::istream &is)
 void IDropAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGameDef *gamedef)
 {
 	Inventory *inv_from = mgr->getInventory(from_inv);
-	
-	if(!inv_from){
+
+	if (!inv_from) {
 		infostream<<"IDropAction::apply(): FAIL: source inventory not found: "
 				<<"from_inv=\""<<from_inv.dump()<<"\""<<std::endl;
 		return;
@@ -579,13 +595,12 @@ void IDropAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
 	/*
 		If a list doesn't exist or the source item doesn't exist
 	*/
-	if(!list_from){
+	if (!list_from) {
 		infostream<<"IDropAction::apply(): FAIL: source list not found: "
 				<<"from_inv=\""<<from_inv.dump()<<"\""<<std::endl;
 		return;
 	}
-	if(list_from->getItem(from_i).empty())
-	{
+	if (list_from->getItem(from_i).empty()) {
 		infostream<<"IDropAction::apply(): FAIL: source item not found: "
 				<<"from_inv=\""<<from_inv.dump()<<"\""
 				<<", from_list=\""<<from_list<<"\""
@@ -603,54 +618,57 @@ void IDropAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
 	*/
 
 	int take_count = list_from->getItem(from_i).count;
-	if(count != 0 && count < take_count)
+	if (count != 0 && count < take_count)
 		take_count = count;
 	int src_can_take_count = take_count;
 
-	// Source is detached
-	if(from_inv.type == InventoryLocation::DETACHED)
-	{
-		ItemStack src_item = list_from->getItem(from_i);
-		src_item.count = take_count;
-		src_can_take_count = PLAYER_TO_SA(player)->detached_inventory_AllowTake(
-				from_inv.name, from_list, from_i, src_item, player);
-	}
+	ItemStack src_item = list_from->getItem(from_i);
+	src_item.count = take_count;
 
-	// Source is nodemeta
-	if(from_inv.type == InventoryLocation::NODEMETA)
-	{
-		ItemStack src_item = list_from->getItem(from_i);
-		src_item.count = take_count;
+	// Run callbacks depending on source inventory
+	switch (from_inv.type) {
+	case InventoryLocation::DETACHED:
+		src_can_take_count = PLAYER_TO_SA(player)->detached_inventory_AllowTake(
+			*this, src_item, player);
+		break;
+	case InventoryLocation::NODEMETA:
 		src_can_take_count = PLAYER_TO_SA(player)->nodemeta_inventory_AllowTake(
-				from_inv.p, from_list, from_i, src_item, player);
+			*this, src_item, player);
+		break;
+	case InventoryLocation::PLAYER:
+		src_can_take_count = PLAYER_TO_SA(player)->player_inventory_AllowTake(
+			*this, src_item, player);
+		break;
+	default:
+		break;
 	}
 
-	if(src_can_take_count != -1 && src_can_take_count < take_count)
+	if (src_can_take_count != -1 && src_can_take_count < take_count)
 		take_count = src_can_take_count;
-	
+
 	int actually_dropped_count = 0;
 
-	ItemStack src_item = list_from->getItem(from_i);
+	// Update item due executed callbacks
+	src_item = list_from->getItem(from_i);
 
 	// Drop the item
 	ItemStack item1 = list_from->getItem(from_i);
 	item1.count = take_count;
 	if(PLAYER_TO_SA(player)->item_OnDrop(item1, player,
-				player->getBasePosition() + v3f(0,1,0)))
-	{
+				player->getBasePosition())) {
 		actually_dropped_count = take_count - item1.count;
 
-		if(actually_dropped_count == 0){
+		if (actually_dropped_count == 0) {
 			infostream<<"Actually dropped no items"<<std::endl;
 			return;
 		}
-		
+
 		// If source isn't infinite
-		if(src_can_take_count != -1){
+		if (src_can_take_count != -1) {
 			// Take item from source list
 			ItemStack item2 = list_from->takeItem(from_i, actually_dropped_count);
 
-			if(item2.count != actually_dropped_count)
+			if (item2.count != actually_dropped_count)
 				errorstream<<"Could not take dropped count of items"<<std::endl;
 
 			mgr->setInventoryModified(from_inv, false);
@@ -662,36 +680,38 @@ void IDropAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
 			<<" list=\""<<from_list<<"\""
 			<<" i="<<from_i
 			<<std::endl;
-	
+
 	src_item.count = actually_dropped_count;
 
 	/*
 		Report drop to endpoints
 	*/
-	
-	// Source is detached
-	if(from_inv.type == InventoryLocation::DETACHED)
-	{
-		PLAYER_TO_SA(player)->detached_inventory_OnTake(
-				from_inv.name, from_list, from_i, src_item, player);
-	}
 
-	// Source is nodemeta
-	if(from_inv.type == InventoryLocation::NODEMETA)
-	{
+	switch (from_inv.type) {
+	case InventoryLocation::DETACHED:
+		PLAYER_TO_SA(player)->detached_inventory_OnTake(
+			*this, src_item, player);
+		break;
+	case InventoryLocation::NODEMETA:
 		PLAYER_TO_SA(player)->nodemeta_inventory_OnTake(
-				from_inv.p, from_list, from_i, src_item, player);
+			*this, src_item, player);
+		break;
+	case InventoryLocation::PLAYER:
+		PLAYER_TO_SA(player)->player_inventory_OnTake(
+			*this, src_item, player);
+		break;
+	default:
+		break;
 	}
 
 	/*
 		Record rollback information
 	*/
-	if(!ignore_src_rollback && gamedef->rollback())
-	{
+	if (!ignore_src_rollback && gamedef->rollback()) {
 		IRollbackManager *rollback = gamedef->rollback();
 
 		// If source is not infinite, record item take
-		if(src_can_take_count != -1){
+		if (src_can_take_count != -1) {
 			RollbackAction action;
 			std::string loc;
 			{
@@ -712,20 +732,20 @@ void IDropAction::clientApply(InventoryManager *mgr, IGameDef *gamedef)
 	// to make lag less apparent.
 
 	Inventory *inv_from = mgr->getInventory(from_inv);
-	if(!inv_from)
+	if (!inv_from)
 		return;
 
 	InventoryLocation current_player;
 	current_player.setCurrentPlayer();
 	Inventory *inv_player = mgr->getInventory(current_player);
-	if(inv_from != inv_player)
+	if (inv_from != inv_player)
 		return;
 
 	InventoryList *list_from = inv_from->getList(from_list);
-	if(!list_from)
+	if (!list_from)
 		return;
 
-	if(count == 0)
+	if (count == 0)
 		list_from->changeItem(from_i, ItemStack());
 	else
 		list_from->takeItem(from_i, count);
@@ -752,7 +772,7 @@ void ICraftAction::apply(InventoryManager *mgr,
 	ServerActiveObject *player, IGameDef *gamedef)
 {
 	Inventory *inv_craft = mgr->getInventory(craft_inv);
-	
+
 	if (!inv_craft) {
 		infostream << "ICraftAction::apply(): FAIL: inventory not found: "
 				<< "craft_inv=\"" << craft_inv.dump() << "\"" << std::endl;
@@ -802,17 +822,15 @@ void ICraftAction::apply(InventoryManager *mgr,
 
 		// Add the new replacements to the list
 		IItemDefManager *itemdef = gamedef->getItemDefManager();
-		for (std::vector<ItemStack>::iterator it = temp.begin();
-				it != temp.end(); it++) {
-			for (std::vector<ItemStack>::iterator jt = output_replacements.begin();
-					jt != output_replacements.end(); jt++) {
-				if (it->name == jt->name) {
-					*it = jt->addItem(*it, itemdef);
-					if (it->empty())
+		for (auto &itemstack : temp) {
+			for (auto &output_replacement : output_replacements) {
+				if (itemstack.name == output_replacement.name) {
+					itemstack = output_replacement.addItem(itemstack, itemdef);
+					if (itemstack.empty())
 						continue;
 				}
 			}
-			output_replacements.push_back(*it);
+			output_replacements.push_back(itemstack);
 		}
 
 		actionstream << player->getDescription()
@@ -823,35 +841,35 @@ void ICraftAction::apply(InventoryManager *mgr,
 		// Decrement counter
 		if (count_remaining == 1)
 			break;
-		else if (count_remaining > 1)
+
+		if (count_remaining > 1)
 			count_remaining--;
 
 		// Get next crafting result
-		found = getCraftingResult(inv_craft, crafted, temp, false, gamedef);
+		getCraftingResult(inv_craft, crafted, temp, false, gamedef);
 		PLAYER_TO_SA(player)->item_CraftPredict(crafted, player, list_craft, craft_inv);
 		found = !crafted.empty();
 	}
 
 	// Put the replacements in the inventory or drop them on the floor, if
 	// the invenotry is full
-	for (std::vector<ItemStack>::iterator it = output_replacements.begin();
-			it != output_replacements.end(); it++) {
+	for (auto &output_replacement : output_replacements) {
 		if (list_main)
-			*it = list_main->addItem(*it);
-		if (it->empty())
+			output_replacement = list_main->addItem(output_replacement);
+		if (output_replacement.empty())
 			continue;
-		u16 count = it->count;
+		u16 count = output_replacement.count;
 		do {
-			PLAYER_TO_SA(player)->item_OnDrop(*it, player,
-				player->getBasePosition() + v3f(0,1,0));
-			if (count >= it->count) {
+			PLAYER_TO_SA(player)->item_OnDrop(output_replacement, player,
+				player->getBasePosition());
+			if (count >= output_replacement.count) {
 				errorstream << "Couldn't drop replacement stack " <<
-					it->getItemString() << " because drop loop didn't "
+					output_replacement.getItemString() << " because drop loop didn't "
 					"decrease count." << std::endl;
 
 				break;
 			}
-		} while (!it->empty());
+		} while (!output_replacement.empty());
 	}
 
 	infostream<<"ICraftAction::apply(): crafted "
@@ -867,38 +885,34 @@ void ICraftAction::clientApply(InventoryManager *mgr, IGameDef *gamedef)
 
 
 // Crafting helper
-bool getCraftingResult(Inventory *inv, ItemStack& result,
+bool getCraftingResult(Inventory *inv, ItemStack &result,
 		std::vector<ItemStack> &output_replacements,
 		bool decrementInput, IGameDef *gamedef)
 {
-	DSTACK(__FUNCTION_NAME);
-	
 	result.clear();
 
 	// Get the InventoryList in which we will operate
 	InventoryList *clist = inv->getList("craft");
-	if(!clist)
+	if (!clist)
 		return false;
 
 	// Mangle crafting grid to an another format
 	CraftInput ci;
 	ci.method = CRAFT_METHOD_NORMAL;
 	ci.width = clist->getWidth() ? clist->getWidth() : 3;
-	for(u16 i=0; i<clist->getSize(); i++)
+	for (u16 i=0; i < clist->getSize(); i++)
 		ci.items.push_back(clist->getItem(i));
 
 	// Find out what is crafted and add it to result item slot
 	CraftOutput co;
 	bool found = gamedef->getCraftDefManager()->getCraftResult(
 			ci, co, output_replacements, decrementInput, gamedef);
-	if(found)
+	if (found)
 		result.deSerialize(co.item, gamedef->getItemDefManager());
 
-	if(found && decrementInput)
-	{
+	if (found && decrementInput) {
 		// CraftInput has been changed, apply changes in clist
-		for(u16 i=0; i<clist->getSize(); i++)
-		{
+		for (u16 i=0; i < clist->getSize(); i++) {
 			clist->changeItem(i, ci.items[i]);
 		}
 	}