virtual void registerCraft(const CraftDefinition &def)
{
infostream<<"registerCraft: registering craft definition: "
<<def.dump()<<std::endl;
if(def.input.width > 3 || def.input.height() > 3){
errorstream<<"registerCraft: input size is larger than 3x3,"
<<" ignoring"<<std::endl;
return;
}
m_craft_definitions.push_back(new CraftDefinition(def));
}
virtual bool getCraftResult(CraftInput &input, CraftOutput &output,
bool decrementInput, IGameDef *gamedef) const
{
output.item = "";
output.time = 0;
// If all input items are empty, abort.
bool all_empty = true;
for(std::vector<ItemStack>::const_iterator
i = input.items.begin();
i != input.items.end(); i++)
{
if(!i->empty())
{
all_empty = false;
break;
}
}
if(all_empty)
return false;
// Walk crafting definitions from back to front, so that later
// definitions can override earlier ones.
for(std::vector<CraftDefinition*>::const_reverse_iterator
i = m_craft_definitions.rbegin();
i != m_craft_definitions.rend(); i++)
{
CraftDefinition *def = *i;
/*infostream<<"Checking "<<input.dump()<<std::endl
<<" against "<<def->dump()<<std::endl;*/
try {
if(def->check(input, gamedef))
{
// Get output, then decrement input (if requested)
output = def->getOutput(input, gamedef);
if(decrementInput)
def->decrementInput(input, gamedef);
return true;
}
}
catch(SerializationError &e)
{
errorstream<<"getCraftResult: ERROR: "
<<"Serialization error in recipe "
<<def->dump()<<std::endl;
// then go on with the next craft definition
}
}
return false;
}
virtual bool getCraftRecipe(CraftInput &input, CraftOutput &output,
IGameDef *gamedef) const
{
CraftOutput tmpout;
tmpout.item = "";
tmpout.time = 0;
// If output item is empty, abort.
if(output.item.empty())
return false;
// Walk crafting definitions from back to front, so that later
// definitions can override earlier ones.
for(std::vector<CraftDefinition*>::const_reverse_iterator
i = m_craft_definitions.rbegin();
i != m_craft_definitions.rend(); i++)
{
CraftDefinition *def = *i;
/*infostream<<"Checking "<<input.dump()<<std::endl
<<" against "<<def->dump()<<std::endl;*/
try {
tmpout = def->getOutput(input, gamedef);
if(tmpout.item.substr(0,output.item.length()) == output.item)
{
// Get output, then decrement input (if requested)
input = def->getInput(output, gamedef);
return true;
}
}
catch(SerializationError &e)
{
errorstream<<"getCraftResult: ERROR: "
<<"Serialization error in recipe "
<<def->dump()<<std::endl;
// then go on with the next craft definition
}
}
return false;
}
virtual InventoryItem* getCraftResult(const CraftPointerInput &input_cpi,
IGameDef *gamedef) const
{
if(input_cpi.width > 3){
errorstream<<"getCraftResult(): ERROR: "
<<"input_cpi.width > 3; Failing to craft."<<std::endl;
return NULL;
}
InventoryItem *input_items[9];
for(u32 y=0; y<3; y++)
for(u32 x=0; x<3; x++)
{
u32 i=y*3+x;
if(x >= input_cpi.width || y >= input_cpi.height())
input_items[i] = NULL;
else
input_items[i] = input_cpi.items[y*input_cpi.width+x];
}
for(core::list<CraftDefinition*>::ConstIterator
i = m_craft_definitions.begin();
i != m_craft_definitions.end(); i++)
{
CraftDefinition *def = *i;
/*infostream<<"Checking "<<createInput(input_cpi).dump()<<std::endl
<<" against "<<def->input.dump()
<<" (output=\""<<def->output<<"\")"<<std::endl;*/
try {
CraftPointerInput spec_cpi = createPointerInput(def->input, gamedef);
if(spec_cpi.width > 3){
errorstream<<"getCraftResult: ERROR: "
<<"spec_cpi.width > 3 in recipe "
<<def->dump()<<std::endl;
continue;
}
InventoryItem *spec_items[9];
for(u32 y=0; y<3; y++)
for(u32 x=0; x<3; x++)
{
u32 i=y*3+x;
if(x >= spec_cpi.width || y >= spec_cpi.height())
spec_items[i] = NULL;
else
spec_items[i] = spec_cpi.items[y*spec_cpi.width+x];
}
bool match = checkItemCombination(input_items, spec_items);
if(match){
std::istringstream iss(def->output, std::ios::binary);
return InventoryItem::deSerialize(iss, gamedef);
}
}
catch(SerializationError &e)
{
errorstream<<"getCraftResult: ERROR: "
<<"Serialization error in recipe "
<<def->dump()<<std::endl;
// then go on with the next craft definition
}
}
return NULL;
}
