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author | Perttu Ahola <celeron55@gmail.com> | 2011-12-28 18:18:08 +0200 |
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committer | Perttu Ahola <celeron55@gmail.com> | 2011-12-28 18:18:08 +0200 |
commit | 1c15f53318d49ccd148ec42b0a4345c4a8cd06bf (patch) | |
tree | 008ffa85e6b118dbe0a16da2f52e72e2e7b41cdf | |
parent | 7937813c98255736c6847fe2d1302e0c6b309b04 (diff) | |
download | minetest-1c15f53318d49ccd148ec42b0a4345c4a8cd06bf.tar.gz minetest-1c15f53318d49ccd148ec42b0a4345c4a8cd06bf.tar.bz2 minetest-1c15f53318d49ccd148ec42b0a4345c4a8cd06bf.zip |
Add EnvRef:get_objects_inside_radius(pos, radius)
-rw-r--r-- | data/mods/default/init.lua | 1 | ||||
-rw-r--r-- | data/mods/experimental/init.lua | 18 | ||||
-rw-r--r-- | src/environment.cpp | 17 | ||||
-rw-r--r-- | src/environment.h | 12 | ||||
-rw-r--r-- | src/scriptapi.cpp | 31 |
5 files changed, 70 insertions, 9 deletions
diff --git a/data/mods/default/init.lua b/data/mods/default/init.lua index 1edbd3cbb..2ba42e0f4 100644 --- a/data/mods/default/init.lua +++ b/data/mods/default/init.lua @@ -155,6 +155,7 @@ -- - add_firefly(pos) -- - get_meta(pos) -- Get a NodeMetaRef at that position -- - get_player_by_name(name) -- Get an ObjectRef to a player +-- - get_objects_inside_radius(pos, radius) -- -- NodeMetaRef -- - get_type() diff --git a/data/mods/experimental/init.lua b/data/mods/experimental/init.lua index 52a729a4a..dd0d60f4e 100644 --- a/data/mods/experimental/init.lua +++ b/data/mods/experimental/init.lua @@ -7,12 +7,18 @@ function on_step(dtime) -- print("experimental on_step") --[[ - print("celeron55 dir: "..dump( - minetest.env:get_player_by_name("celeron55"):get_look_dir())) - print("celeron55 pitch: "..dump( - minetest.env:get_player_by_name("celeron55"):get_look_pitch())) - print("celeron55 yaw: "..dump( - minetest.env:get_player_by_name("celeron55"):get_look_yaw())) + objs = minetest.env:get_objects_inside_radius({x=0,y=0,z=0}, 10) + for k, obj in pairs(objs) do + name = obj:get_player_name() + if name then + print(name.." at "..dump(obj:getpos())) + print(name.." dir: "..dump(obj:get_look_dir())) + print(name.." pitch: "..dump(obj:get_look_pitch())) + print(name.." yaw: "..dump(obj:get_look_yaw())) + else + print("Some object at "..dump(obj:getpos())) + end + end --]] end minetest.register_globalstep(on_step) diff --git a/src/environment.cpp b/src/environment.cpp index aa2b45f8f..88f1527fc 100644 --- a/src/environment.cpp +++ b/src/environment.cpp @@ -752,6 +752,23 @@ void ServerEnvironment::addActiveBlockModifier(ActiveBlockModifier *abm) m_abms.push_back(ABMWithState(abm)); } +std::set<u16> ServerEnvironment::getObjectsInsideRadius(v3f pos, float radius) +{ + std::set<u16> objects; + for(core::map<u16, ServerActiveObject*>::Iterator + i = m_active_objects.getIterator(); + i.atEnd()==false; i++) + { + ServerActiveObject* obj = i.getNode()->getValue(); + u16 id = i.getNode()->getKey(); + v3f objectpos = obj->getBasePosition(); + if(objectpos.getDistanceFrom(pos) > radius) + continue; + objects.insert(id); + } + return objects; +} + void ServerEnvironment::clearAllObjects() { infostream<<"ServerEnvironment::clearAllObjects(): " diff --git a/src/environment.h b/src/environment.h index e14a9c485..3ebbee910 100644 --- a/src/environment.h +++ b/src/environment.h @@ -261,18 +261,24 @@ public: void activateBlock(MapBlock *block, u32 additional_dtime=0); /* - ActiveBlockModifiers (TODO) + ActiveBlockModifiers ------------------------------------------- - NOTE: Not used currently (TODO: Use or remove) */ void addActiveBlockModifier(ActiveBlockModifier *abm); - /* Other stuff */ + /* + Other stuff + ------------------------------------------- + */ + + // Find all active objects inside a radius around a point + std::set<u16> getObjectsInsideRadius(v3f pos, float radius); // Clear all objects, loading and going through every MapBlock void clearAllObjects(); + // This makes stuff happen void step(f32 dtime); private: diff --git a/src/scriptapi.cpp b/src/scriptapi.cpp index 23336e32d..1a50e1e34 100644 --- a/src/scriptapi.cpp +++ b/src/scriptapi.cpp @@ -2592,6 +2592,36 @@ private: return 1; } + // EnvRef:get_objects_inside_radius(pos, radius) + static int l_get_objects_inside_radius(lua_State *L) + { + // Get the table insert function + lua_getglobal(L, "table"); + lua_getfield(L, -1, "insert"); + int table_insert = lua_gettop(L); + // Get environemnt + EnvRef *o = checkobject(L, 1); + ServerEnvironment *env = o->m_env; + if(env == NULL) return 0; + // Do it + v3f pos = readFloatPos(L, 2); + float radius = luaL_checknumber(L, 3) * BS; + std::set<u16> ids = env->getObjectsInsideRadius(pos, radius); + lua_newtable(L); + int table = lua_gettop(L); + for(std::set<u16>::const_iterator + i = ids.begin(); i != ids.end(); i++){ + ServerActiveObject *obj = env->getActiveObject(*i); + // Insert object reference into table + lua_pushvalue(L, table_insert); + lua_pushvalue(L, table); + objectref_get_or_create(L, obj); + if(lua_pcall(L, 2, 0, 0)) + script_error(L, "error: %s", lua_tostring(L, -1)); + } + return 1; + } + static int gc_object(lua_State *L) { EnvRef *o = *(EnvRef **)(lua_touserdata(L, 1)); delete o; @@ -2668,6 +2698,7 @@ const luaL_reg EnvRef::methods[] = { method(EnvRef, add_firefly), method(EnvRef, get_meta), method(EnvRef, get_player_by_name), + method(EnvRef, get_objects_inside_radius), {0,0} }; |