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Allow overriding tool capabilities through itemstack metadata

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This makes it possible to modify the tool capabilities of individual
itemstacks by calling a method on itemstack metadata references.
This commit is contained in:
raymoo 2017-04-18 16:30:27 -07:00 • committed by paramat
parent 610ea6f216
commit a637107a4e
10 changed files with 206 additions and 14 deletions
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41
src/itemstackmetadata.cpp
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@ -9,6 +9,22 @@
#define DESERIALIZE_KV_DELIM_STR "\x02"
#define DESERIALIZE_PAIR_DELIM_STR "\x03"
#define TOOLCAP_KEY "tool_capabilities"
void ItemStackMetadata::clear()
{
Metadata::clear();
updateToolCapabilities();
}
bool ItemStackMetadata::setString(const std::string &name, const std::string &var)
{
bool result = Metadata::setString(name, var);
if (name == TOOLCAP_KEY)
updateToolCapabilities();
return result;
}
void ItemStackMetadata::serialize(std::ostream &os) const
{
std::ostringstream os2;
@ -41,4 +57,29 @@ void ItemStackMetadata::deSerialize(std::istream &is)
m_stringvars[""] = in;
}
}
updateToolCapabilities();
}
void ItemStackMetadata::updateToolCapabilities()
{
if (contains(TOOLCAP_KEY)) {
toolcaps_overridden = true;
toolcaps_override = ToolCapabilities();
std::istringstream is(getString(TOOLCAP_KEY));
toolcaps_override.deserializeJson(is);
} else {
toolcaps_overridden = false;
}
}
void ItemStackMetadata::setToolCapabilities(const ToolCapabilities &caps)
{
std::ostringstream os;
caps.serializeJson(os);
setString(TOOLCAP_KEY, os.str());
}
void ItemStackMetadata::clearToolCapabilities()
{
setString(TOOLCAP_KEY, "");
}