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.codehilite .hll { background-color: #ffffcc }
.codehilite .c { color: #408080; font-style: italic } /* Comment */
/* .codehilite .err { border: 1px solid #FF0000 } /* Error */
.codehilite .k { color: #008000; font-weight: bold } /* Keyword */
.codehilite .o { color: #666666 } /* Operator */
.codehilite .ch { color: #408080; font-style: italic } /* Comment.Hashbang */
.codehilite .cm { color: #408080; font-style: italic } /* Comment.Multiline */
.codehilite .cp { color: #BC7A00 } /* Comment.Preproc */
.codehilite .cpf { color: #408080; font-style: italic } /* Comment.PreprocFile */
.codehilite .c1 { color: #408080; font-style: italic } /* Comment.Single */
.codehilite .cs { color: #408080; font-style: italic } /* Comment.Special */
.codehilite .gd { color: #A00000 } /* Generic.Deleted */
.codehilite .ge { font-style: italic } /* Generic.Emph */
.codehilite .gr { color: #FF0000 } /* Generic.Error */
.codehilite .gh { color: #000080; font-weight: bold } /* Generic.Heading */
.codehilite .gi { color: #00A000 } /* Generic.Inserted */
.codehilite .go { color: #888888 } /* Generic.Output */
.codehilite .gp { color: #000080; font-weight: bold } /* Generic.Prompt */
.codehilite .gs { font-weight: bold } /* Generic.Strong */
.codehilite .gu { color: #800080; font-weight: bold } /* Generic.Subheading */
.codehilite .gt { color: #0044DD } /* Generic.Traceback */
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.codehilite .kn { color: #008000; font-weight: bold } /* Keyword.Namespace */
.codehilite .kp { color: #008000 } /* Keyword.Pseudo */
.codehilite .kr { color: #008000; font-weight: bold } /* Keyword.Reserved */
.codehilite .kt { color: #B00040 } /* Keyword.Type */
.codehilite .m { color: #666666 } /* Literal.Number */
.codehilite .s { color: #BA2121 } /* Literal.String */
.codehilite .na { color: #7D9029 } /* Name.Attribute */
.codehilite .nb { color: #008000 } /* Name.Builtin */
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.codehilite .nd { color: #AA22FF } /* Name.Decorator */
.codehilite .ni { color: #999999; font-weight: bold } /* Name.Entity */
.codehilite .ne { color: #D2413A; font-weight: bold } /* Name.Exception */
.codehilite .nf { color: #0000FF } /* Name.Function */
.codehilite .nl { color: #A0A000 } /* Name.Label */
.codehilite .nn { color: #0000FF; font-weight: bold } /* Name.Namespace */
.codehilite .nt { color: #008000; font-weight: bold } /* Name.Tag */
.codehilite .nv { color: #19177C } /* Name.Variable */
.codehilite .ow { color: #AA22FF; font-weight: bold } /* Operator.Word */
.codehilite .w { color: #bbbbbb } /* Text.Whitespace */
.codehilite .mb { color: #666666 } /* Literal.Number.Bin */
.codehilite .mf { color: #666666 } /* Literal.Number.Float */
.codehilite .mh { color: #666666 } /* Literal.Number.Hex */
.codehilite .mi { color: #666666 } /* Literal.Number.Integer */
.codehilite .mo { color: #666666 } /* Literal.Number.Oct */
.codehilite .sa { color: #BA2121 } /* Literal.String.Affix */
.codehilite .sb { color: #BA2121 } /* Literal.String.Backtick */
.codehilite .sc { color: #BA2121 } /* Literal.String.Char */
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.codehilite .s2 { color: #BA2121 } /* Literal.String.Double */
.codehilite .se { color: #BB6622; font-weight: bold } /* Literal.String.Escape */
.codehilite .sh { color: #BA2121 } /* Literal.String.Heredoc */
.codehilite .si { color: #BB6688; font-weight: bold } /* Literal.String.Interpol */
.codehilite .sx { color: #008000 } /* Literal.String.Other */
.codehilite .sr { color: #BB6688 } /* Literal.String.Regex */
.codehilite .s1 { color: #BA2121 } /* Literal.String.Single */
.codehilite .ss { color: #19177C } /* Literal.String.Symbol */
.codehilite .bp { color: #008000 } /* Name.Builtin.Pseudo */
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.codehilite .vc { color: #19177C } /* Name.Variable.Class */
.codehilite .vg { color: #19177C } /* Name.Variable.Global */
.codehilite .vi { color: #19177C } /* Name.Variable.Instance */
.codehilite .vm { color: #19177C } /* Name.Variable.Magic */
.codehilite .il { color: #666666 } /* Literal.Number.Integer.Long */
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-05 04:10:50 +0000
"util/numeric.h" #include "util/basic_macros.h" #include "map.h" #include "gamedef.h" #include "nodedef.h" #include "nodemetadata.h" #include "exceptions.h" #include "log.h" #include "inventorymanager.h" #include "inventory.h" #include "mapblock.h" RollbackNode::RollbackNode(Map *map, v3s16 p, IGameDef *gamedef) { const NodeDefManager *ndef = gamedef->ndef(); MapNode n = map->getNode(p); name = ndef->get(n).name; param1 = n.param1; param2 = n.param2; NodeMetadata *metap = map->getNodeMetadata(p); if (metap) { std::ostringstream os(std::ios::binary); metap->serialize(os, 1); // FIXME: version bump?? meta = os.str(); } } std::string RollbackAction::toString() const { std::ostringstream os(std::ios::binary); switch (type) { case TYPE_SET_NODE: os << "set_node " << PP(p); os << ": (" << serializeJsonString(n_old.name); os << ", " << itos(n_old.param1); os << ", " << itos(n_old.param2); os << ", " << serializeJsonString(n_old.meta); os << ") -> (" << serializeJsonString(n_new.name); os << ", " << itos(n_new.param1); os << ", " << itos(n_new.param2); os << ", " << serializeJsonString(n_new.meta); os << ')'; case TYPE_MODIFY_INVENTORY_STACK: os << "modify_inventory_stack ("; os << serializeJsonString(inventory_location); os << ", " << serializeJsonString(inventory_list); os << ", " << inventory_index; os << ", " << (inventory_add ? "add" : "remove"); os << ", " << serializeJsonString(inventory_stack.getItemString()); os << ')'; default: return "<unknown action>"; } return os.str(); } bool RollbackAction::isImportant(IGameDef *gamedef) const { if (type != TYPE_SET_NODE) return true; // If names differ, action is always important if(n_old.name != n_new.name) return true; // If metadata differs, action is always important if(n_old.meta != n_new.meta) return true; const NodeDefManager *ndef = gamedef->ndef(); // Both are of the same name, so a single definition is needed const ContentFeatures &def = ndef->get(n_old.name); // If the type is flowing liquid, action is not important if (def.liquid_type == LIQUID_FLOWING) return false; // Otherwise action is important return true; } bool RollbackAction::getPosition(v3s16 *dst) const { switch (type) { case TYPE_SET_NODE: if (dst) *dst = p; return true; case TYPE_MODIFY_INVENTORY_STACK: { InventoryLocation loc; loc.deSerialize(inventory_location); if (loc.type != InventoryLocation::NODEMETA) { return false; } if (dst) *dst = loc.p; return true; } default: return false; } } bool RollbackAction::applyRevert(Map *map, InventoryManager *imgr, IGameDef *gamedef) const { try { switch (type) { case TYPE_NOTHING: return true; case TYPE_SET_NODE: { const NodeDefManager *ndef = gamedef->ndef(); // Make sure position is loaded from disk map->emergeBlock(getContainerPos(p, MAP_BLOCKSIZE), false); // Check current node MapNode current_node = map->getNode(p); std::string current_name = ndef->get(current_node).name; // If current node not the new node, it's bad if (current_name != n_new.name) { return false; } // Create rollback node content_t id = CONTENT_IGNORE; if (!ndef->getId(n_old.name, id)) { // The old node is not registered return false; } MapNode n(id, n_old.param1, n_old.param2); // Set rollback node try { if (!map->addNodeWithEvent(p, n)) { infostream << "RollbackAction::applyRevert(): " << "AddNodeWithEvent failed at " << PP(p) << " for " << n_old.name << std::endl; return false; } if (n_old.meta.empty()) { map->removeNodeMetadata(p); } else { NodeMetadata *meta = map->getNodeMetadata(p); if (!meta) { meta = new NodeMetadata(gamedef->idef()); if (!map->setNodeMetadata(p, meta)) { delete meta; infostream << "RollbackAction::applyRevert(): " << "setNodeMetadata failed at " << PP(p) << " for " << n_old.name << std::endl; return false; } } std::istringstream is(n_old.meta, std::ios::binary); meta->deSerialize(is, 1); // FIXME: version bump?? } // Inform other things that the meta data has changed MapEditEvent event; event.type = MEET_BLOCK_NODE_METADATA_CHANGED; event.p = p; map->dispatchEvent(event); } catch (InvalidPositionException &e) { infostream << "RollbackAction::applyRevert(): " << "InvalidPositionException: " << e.what() << std::endl; return false; } // Success return true; } case TYPE_MODIFY_INVENTORY_STACK: { InventoryLocation loc; loc.deSerialize(inventory_location); Inventory *inv = imgr->getInventory(loc); if (!inv) { infostream << "RollbackAction::applyRevert(): Could not get " "inventory at " << inventory_location << std::endl; return false; } InventoryList *list = inv->getList(inventory_list); if (!list) { infostream << "RollbackAction::applyRevert(): Could not get " "inventory list \"" << inventory_list << "\" in " << inventory_location << std::endl; return false; } if (list->getSize() <= inventory_index) { infostream << "RollbackAction::applyRevert(): List index " << inventory_index << " too large in " << "inventory list \"" << inventory_list << "\" in " << inventory_location << std::endl; return false; } // If item was added, take away item, otherwise add removed item if (inventory_add) { // Silently ignore different current item if (list->getItem(inventory_index).name != gamedef->idef()->getAlias(inventory_stack.name)) return false; list->takeItem(inventory_index, inventory_stack.count); } else { list->addItem(inventory_index, inventory_stack); } // Inventory was modified; send to clients imgr->setInventoryModified(loc); return true; } default: errorstream << "RollbackAction::applyRevert(): type not handled" << std::endl; return false; } } catch(SerializationError &e) { errorstream << "RollbackAction::applyRevert(): n_old.name=" << n_old.name << ", SerializationError: " << e.what() << std::endl; } return false; }