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Add option to also check the center to find_node_near (#5255)

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* Add option to also check the center to `find_node_near`
This commit is contained in:
red-001 2017-05-04 21:52:58 +01:00 committed by Loïc Blot
parent 6fb27d3b2e
commit d6cf5450a8
3 changed files with 12 additions and 10 deletions
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4
doc/lua_api.txt
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@ -2280,9 +2280,11 @@ and `minetest.auth_reload` call the authetification handler.
* `minetest.get_gametime()`: returns the time, in seconds, since the world was created
* `minetest.get_day_count()`: returns number days elapsed since world was created,
* accounting for time changes.
* `minetest.find_node_near(pos, radius, nodenames)`: returns pos or `nil`
* `minetest.find_node_near(pos, radius, nodenames, [search_center])`: returns pos or `nil`
* `radius`: using a maximum metric
* `nodenames`: e.g. `{"ignore", "group:tree"}` or `"default:dirt"`
* `search_center` is an optional boolean (default: `false`)
If true `pos` is also checked for the nodes
* `minetest.find_nodes_in_area(minp, maxp, nodenames)`: returns a list of positions
* returns as second value a table with the count of the individual nodes found
* `nodenames`: e.g. `{"ignore", "group:tree"}` or `"default:dirt"`

8
src/script/lua_api/l_env.cpp
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@ -599,7 +599,7 @@ int ModApiEnvMod::l_get_gametime(lua_State *L)
}
// find_node_near(pos, radius, nodenames) -> pos or nil
// find_node_near(pos, radius, nodenames, search_center) -> pos or nil
// nodenames: eg. {"ignore", "group:tree"} or "default:dirt"
int ModApiEnvMod::l_find_node_near(lua_State *L)
{
@ -613,9 +613,8 @@ int ModApiEnvMod::l_find_node_near(lua_State *L)
int radius = luaL_checkinteger(L, 2);
std::set<content_t> filter;
if (lua_istable(L, 3)) {
int table = 3;
lua_pushnil(L);
while(lua_next(L, table) != 0){
while (lua_next(L, 3) != 0) {
// key at index -2 and value at index -1
luaL_checktype(L, -1, LUA_TSTRING);
ndef->getIds(lua_tostring(L, -1), filter);
@ -626,7 +625,8 @@ int ModApiEnvMod::l_find_node_near(lua_State *L)
ndef->getIds(lua_tostring(L, 3), filter);
}
for (int d=1; d<=radius; d++){
int start_radius = (lua_toboolean(L, 4)) ? 0 : 1;
for (int d = start_radius; d <= radius; d++) {
std::vector<v3s16> list = FacePositionCache::getFacePositions(d);
for (std::vector<v3s16>::iterator i = list.begin();
i != list.end(); ++i) {

2
src/script/lua_api/l_env.h
View File

@ -116,7 +116,7 @@ private:
// get_day_count() -> int
static int l_get_day_count(lua_State *L);
// find_node_near(pos, radius, nodenames) -> pos or nil
// find_node_near(pos, radius, nodenames, search_center) -> pos or nil
// nodenames: eg. {"ignore", "group:tree"} or "default:dirt"
static int l_find_node_near(lua_State *L);