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Allow buffer argument to VoxelManip:get_light_data (#12682)
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@ -24,6 +24,7 @@ core.features = {
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particlespawner_tweenable = true,
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dynamic_add_media_table = true,
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get_sky_as_table = true,
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get_light_data_buffer = true,
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}
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function core.has_feature(arg)
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@ -4386,12 +4386,15 @@ Methods
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`minetest.get_mapgen_object`.
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* (`p1`, `p2`) is the area in which lighting is set, defaults to the whole
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area if left out.
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* `get_light_data()`: Gets the light data read into the `VoxelManip` object
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* `get_light_data([buffer])`: Gets the light data read into the
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`VoxelManip` object
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* Returns an array (indices 1 to volume) of integers ranging from `0` to
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`255`.
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* Each value is the bitwise combination of day and night light values
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(`0` to `15` each).
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* `light = day + (night * 16)`
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* If the param `buffer` is present, this table will be used to store the
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result instead.
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* `set_light_data(light_data)`: Sets the `param1` (light) contents of each node
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in the `VoxelManip`.
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* expects lighting data in the same format that `get_light_data()` returns
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@ -4863,6 +4866,8 @@ Utilities
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particlespawner_tweenable = true,
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-- allows get_sky to return a table instead of separate values (5.6.0)
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get_sky_as_table = true,
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-- VoxelManip:get_light_data accepts an optional buffer argument (5.7.0)
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get_light_data_buffer = true,
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}
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* `minetest.has_feature(arg)`: returns `boolean, missing_features`
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@ -260,11 +260,17 @@ int LuaVoxelManip::l_get_light_data(lua_State *L)
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NO_MAP_LOCK_REQUIRED;
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LuaVoxelManip *o = checkobject(L, 1);
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bool use_buffer = lua_istable(L, 2);
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MMVManip *vm = o->vm;
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u32 volume = vm->m_area.getVolume();
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lua_createtable(L, volume, 0);
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if (use_buffer)
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lua_pushvalue(L, 2);
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else
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lua_createtable(L, volume, 0);
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for (u32 i = 0; i != volume; i++) {
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lua_Integer light = vm->m_data[i].param1;
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lua_pushinteger(L, light);
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