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-rw-r--r--src/nodedef.cpp36
-rw-r--r--src/nodedef.h3
2 files changed, 39 insertions, 0 deletions
diff --git a/src/nodedef.cpp b/src/nodedef.cpp
index d41df5c3b..59db68a36 100644
--- a/src/nodedef.cpp
+++ b/src/nodedef.cpp
@@ -28,6 +28,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "settings.h"
#include "nameidmapping.h"
#include "util/serialize.h"
+//#include "profiler.h" // For TimeTaker
/*
NodeBox
@@ -452,6 +453,7 @@ public:
virtual void getIds(const std::string &name, std::set<content_t> &result)
const
{
+ //TimeTaker t("getIds", NULL, PRECISION_MICRO);
if(name.substr(0,6) != "group:"){
content_t id = CONTENT_IGNORE;
if(getId(name, id))
@@ -459,6 +461,20 @@ public:
return;
}
std::string group = name.substr(6);
+
+#if 1 // Optimized version, takes less than 1 microsecond at -O1
+ std::map<std::string, GroupItems>::const_iterator
+ i = m_group_to_items.find(group);
+ if (i == m_group_to_items.end())
+ return;
+
+ const GroupItems &items = i->second;
+ for (GroupItems::const_iterator j = items.begin();
+ j != items.end(); ++j) {
+ if ((*j).second != 0)
+ result.insert((*j).first);
+ }
+#else // Old version, takes about ~150-200us at -O1
for(u16 id=0; id<=MAX_CONTENT; id++)
{
const ContentFeatures &f = m_content_features[id];
@@ -467,6 +483,8 @@ public:
if(itemgroup_get(f.groups, group) != 0)
result.insert(id);
}
+#endif
+ //printf("getIds: %dus\n", t.stop());
}
virtual const ContentFeatures& get(const std::string &name) const
{
@@ -498,6 +516,21 @@ public:
m_content_features[c] = def;
if(def.name != "")
addNameIdMapping(c, def.name);
+
+ // Add this content to the list of all groups it belongs to
+ for (ItemGroupList::const_iterator i = def.groups.begin();
+ i != def.groups.end(); ++i) {
+ std::string group_name = i->first;
+
+ std::map<std::string, GroupItems>::iterator
+ j = m_group_to_items.find(group_name);
+ if (j == m_group_to_items.end()) {
+ m_group_to_items[group_name].push_back(std::make_pair(c, i->second));
+ } else {
+ GroupItems &items = j->second;
+ items.push_back(std::make_pair(c, i->second));
+ }
+ }
}
virtual content_t set(const std::string &name,
const ContentFeatures &def)
@@ -787,6 +820,9 @@ private:
// item aliases too. Updated by updateAliases()
// Note: Not serialized.
std::map<std::string, content_t> m_name_id_mapping_with_aliases;
+ // A mapping from groups to a list of content_ts (and their levels)
+ // that belong to it. Necessary for a direct lookup in getIds().
+ std::map<std::string, GroupItems> m_group_to_items;
};
IWritableNodeDefManager* createNodeDefManager()
diff --git a/src/nodedef.h b/src/nodedef.h
index 4f07565d1..d846489ae 100644
--- a/src/nodedef.h
+++ b/src/nodedef.h
@@ -24,6 +24,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include <string>
#include <iostream>
#include <map>
+#include <list>
#include "mapnode.h"
#ifndef SERVER
#include "tile.h"
@@ -36,6 +37,8 @@ class IItemDefManager;
class ITextureSource;
class IGameDef;
+typedef std::list<std::pair<content_t, int> > GroupItems;
+
enum ContentParamType
{
CPT_NONE,