]> git.lizzy.rs Git - minetest.git/blobdiff - src/inventorymanager.cpp
Fix naming conventions of noise userdata
[minetest.git] / src / inventorymanager.cpp
index 96ce48086be65abfe2d73fd89503ddb60b101935..ad567f44cdfee3af8babf2adf8e021b28a85b406 100644 (file)
@@ -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);
@@ -171,17 +158,17 @@ 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()<<"\""
-                               <<", to_inv=\""<<to_inv.dump()<<"\""<<std::endl;
+
+       if (!inv_from) {
+               infostream << "IMoveAction::apply(): FAIL: source inventory not found: "
+                       << "from_inv=\""<<from_inv.dump() << "\""
+                       << ", to_inv=\"" << to_inv.dump() << "\"" << std::endl;
                return;
        }
-       if(!inv_to){
-               infostream<<"IMoveAction::apply(): FAIL: destination inventory not found: "
-                               <<"from_inv=\""<<from_inv.dump()<<"\""
-                               <<", to_inv=\""<<to_inv.dump()<<"\""<<std::endl;
+       if (!inv_to) {
+               infostream << "IMoveAction::apply(): FAIL: destination inventory not found: "
+                       << "from_inv=\"" << from_inv.dump() << "\""
+                       << ", to_inv=\"" << to_inv.dump() << "\"" << std::endl;
                return;
        }
 
@@ -191,16 +178,16 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
        /*
                If a list doesn't exist or the source item doesn't exist
        */
-       if(!list_from){
-               infostream<<"IMoveAction::apply(): FAIL: source list not found: "
-                               <<"from_inv=\""<<from_inv.dump()<<"\""
-                               <<", from_list=\""<<from_list<<"\""<<std::endl;
+       if (!list_from) {
+               infostream << "IMoveAction::apply(): FAIL: source list not found: "
+                       << "from_inv=\"" << from_inv.dump() << "\""
+                       << ", from_list=\"" << from_list << "\"" << std::endl;
                return;
        }
-       if(!list_to){
-               infostream<<"IMoveAction::apply(): FAIL: destination list not found: "
-                               <<"to_inv=\""<<to_inv.dump()<<"\""
-                               <<", to_list=\""<<to_list<<"\""<<std::endl;
+       if (!list_to) {
+               infostream << "IMoveAction::apply(): FAIL: destination list not found: "
+                       << "to_inv=\""<<to_inv.dump() << "\""
+                       << ", to_list=\"" << to_list << "\"" << std::endl;
                return;
        }
 
@@ -246,6 +233,13 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
                move_somewhere = true;
                return;
        }
+
+       if ((u16)to_i > list_to->getSize()) {
+               infostream << "IMoveAction::apply(): FAIL: destination index out of bounds: "
+                       << "to_i=" << to_i
+                       << ", size=" << list_to->getSize() << std::endl;
+               return;
+       }
        /*
                Do not handle rollback if both inventories are that of the same player
        */
@@ -259,37 +253,32 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
        */
 
        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 &&
+       if (from_inv.type == InventoryLocation::DETACHED &&
                        to_inv.type == InventoryLocation::DETACHED &&
-                       from_inv.name == to_inv.name)
-       {
+                       from_inv.name == to_inv.name) {
                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);
                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);
                }
                // 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(
@@ -301,28 +290,23 @@ 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 &&
+       if (from_inv.type == InventoryLocation::NODEMETA &&
                        to_inv.type == InventoryLocation::NODEMETA &&
-                       from_inv.p == to_inv.p)
-       {
+                       from_inv.p == to_inv.p) {
                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);
                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);
                }
                // 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(
@@ -331,20 +315,19 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
        }
 
        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()<<"\""
@@ -368,28 +351,36 @@ 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);
@@ -409,15 +400,20 @@ 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;
                        {
@@ -430,7 +426,7 @@ 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;
                        {
@@ -447,29 +443,24 @@ 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 &&
+       if (from_inv.type == InventoryLocation::DETACHED &&
                        to_inv.type == InventoryLocation::DETACHED &&
-                       from_inv.name == to_inv.name)
-       {
+                       from_inv.name == to_inv.name) {
                PLAYER_TO_SA(player)->detached_inventory_OnMove(
                                from_inv.name, from_list, from_i,
                                to_list, to_i, count, player);
-       }
-       else
-       {
+       } 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);
                }
                // 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);
                }
@@ -478,31 +469,27 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
        /* Node metadata inventories */
 
        // Both endpoints are same nodemeta
-       if(from_inv.type == InventoryLocation::NODEMETA &&
+       if (from_inv.type == InventoryLocation::NODEMETA &&
                        to_inv.type == InventoryLocation::NODEMETA &&
-                       from_inv.p == to_inv.p)
-       {
+                       from_inv.p == to_inv.p) {
                PLAYER_TO_SA(player)->nodemeta_inventory_OnMove(
                                from_inv.p, from_list, from_i,
                                to_list, to_i, count, player);
-       }
-       else{
+       } 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);
                }
                // Source is nodemeta
-               else if(from_inv.type == InventoryLocation::NODEMETA)
-               {
+               else if (from_inv.type == InventoryLocation::NODEMETA) {
                        PLAYER_TO_SA(player)->nodemeta_inventory_OnTake(
                                        from_inv.p, from_list, from_i, src_item, player);
                }
        }
-       
+
        mgr->setInventoryModified(from_inv, false);
-       if(inv_from != inv_to)
+       if (inv_from != inv_to)
                mgr->setInventoryModified(to_inv, false);
 }
 
@@ -513,18 +500,18 @@ 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)
@@ -533,7 +520,7 @@ 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);
 }
 
@@ -560,8 +547,8 @@ 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;
@@ -572,13 +559,12 @@ 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<<"\""
@@ -596,13 +582,12 @@ 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)
-       {
+       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(
@@ -610,17 +595,16 @@ void IDropAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
        }
 
        // 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 = take_count;
                src_can_take_count = PLAYER_TO_SA(player)->nodemeta_inventory_AllowTake(
                                from_inv.p, from_list, from_i, src_item, player);
        }
 
-       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);
@@ -629,21 +613,20 @@ void IDropAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
        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);
@@ -655,23 +638,21 @@ 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)
-       {
+       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)
-       {
+       if (from_inv.type == InventoryLocation::NODEMETA) {
                PLAYER_TO_SA(player)->nodemeta_inventory_OnTake(
                                from_inv.p, from_list, from_i, src_item, player);
        }
@@ -679,12 +660,11 @@ void IDropAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
        /*
                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;
                        {
@@ -705,20 +685,20 @@ 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);
@@ -745,7 +725,7 @@ 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;
@@ -795,17 +775,15 @@ 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()
@@ -816,7 +794,8 @@ 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
@@ -827,24 +806,23 @@ void ICraftAction::apply(InventoryManager *mgr,
 
        // 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 "
@@ -860,38 +838,34 @@ void ICraftAction::clientApply(InventoryManager *mgr, IGameDef *gamedef)
 
 
 // Crafting helper
-bool getCraftingResult(Inventory *inv, ItemStackresult,
+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]);
                }
        }