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Client-side prediction of inventory changes, and some inventory menu fixes

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Kahrl 2012-01-22 00:49:02 +01:00 • committed by Perttu Ahola
parent 1efdc36b22
commit b4dd5d3bd7
8 changed files with 210 additions and 57 deletions
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129
src/inventorymanager.cpp
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@ -133,6 +133,10 @@ InventoryAction * InventoryAction::deSerialize(std::istream &is)
return a;
}
/*
IMoveAction
*/
IMoveAction::IMoveAction(std::istream &is)
{
std::string ts;
@ -193,59 +197,13 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
<<", to_list=\""<<to_list<<"\""<<std::endl;
return;
}
if(list_from->getItem(from_i).empty())
{
infostream<<"IMoveAction::apply(): FAIL: source item not found: "
<<"from_inv=\""<<from_inv.dump()<<"\""
<<", from_list=\""<<from_list<<"\""
<<" from_i="<<from_i<<std::endl;
return;
}
/*
If the source and the destination slots are the same
This performs the actual movement
If something is wrong (source item is empty, destination is the
same as source), nothing happens
*/
if(inv_from == inv_to && list_from == list_to && from_i == to_i)
{
infostream<<"IMoveAction::apply(): FAIL: source and destination slots "
<<"are the same: inv=\""<<from_inv.dump()
<<"\" list=\""<<from_list
<<"\" i="<<from_i<<std::endl;
return;
}
// Take item from source list
ItemStack item1;
if(count == 0)
item1 = list_from->changeItem(from_i, ItemStack());
else
item1 = list_from->takeItem(from_i, count);
// Try to add the item to destination list
int oldcount = item1.count;
item1 = list_to->addItem(to_i, item1);
// If something is returned, the item was not fully added
if(!item1.empty())
{
// If olditem is returned, nothing was added.
bool nothing_added = (item1.count == oldcount);
// If something else is returned, part of the item was left unadded.
// Add the other part back to the source item
list_from->addItem(from_i, item1);
// If olditem is returned, nothing was added.
// Swap the items
if(nothing_added)
{
// Take item from source list
item1 = list_from->changeItem(from_i, ItemStack());
// Adding was not possible, swap the items.
ItemStack item2 = list_to->changeItem(to_i, item1);
// Put item from destination list to the source list
list_from->changeItem(from_i, item2);
}
}
list_from->moveItem(from_i, list_to, to_i, count);
mgr->setInventoryModified(from_inv);
if(inv_from != inv_to)
@ -262,6 +220,38 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
<<std::endl;
}
void IMoveAction::clientApply(InventoryManager *mgr, IGameDef *gamedef)
{
// Optional InventoryAction operation that is run on the client
// to make lag less apparent.
Inventory *inv_from = mgr->getInventory(from_inv);
Inventory *inv_to = mgr->getInventory(to_inv);
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)
return;
InventoryList *list_from = inv_from->getList(from_list);
InventoryList *list_to = inv_to->getList(to_list);
if(!list_from || !list_to)
return;
list_from->moveItem(from_i, list_to, to_i, count);
mgr->setInventoryModified(from_inv);
if(inv_from != inv_to)
mgr->setInventoryModified(to_inv);
}
/*
IDropAction
*/
IDropAction::IDropAction(std::istream &is)
{
std::string ts;
@ -338,6 +328,37 @@ void IDropAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
<<std::endl;
}
void IDropAction::clientApply(InventoryManager *mgr, IGameDef *gamedef)
{
// Optional InventoryAction operation that is run on the client
// to make lag less apparent.
Inventory *inv_from = mgr->getInventory(from_inv);
if(!inv_from)
return;
InventoryLocation current_player;
current_player.setCurrentPlayer();
Inventory *inv_player = mgr->getInventory(current_player);
if(inv_from != inv_player)
return;
InventoryList *list_from = inv_from->getList(from_list);
if(!list_from)
return;
if(count == 0)
list_from->changeItem(from_i, ItemStack());
else
list_from->takeItem(from_i, count);
mgr->setInventoryModified(from_inv);
}
/*
ICraftAction
*/
ICraftAction::ICraftAction(std::istream &is)
{
std::string ts;
@ -412,6 +433,12 @@ void ICraftAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGam
<<std::endl;
}
void ICraftAction::clientApply(InventoryManager *mgr, IGameDef *gamedef)
{
// Optional InventoryAction operation that is run on the client
// to make lag less apparent.
}
// Crafting helper
bool getCraftingResult(Inventory *inv, ItemStack& result,