diff options
Diffstat (limited to 'src/script/lua_api/l_env.cpp')
| -rw-r--r-- | src/script/lua_api/l_env.cpp | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/script/lua_api/l_env.cpp b/src/script/lua_api/l_env.cpp index 138e88ae8..8d50d664d 100644 --- a/src/script/lua_api/l_env.cpp +++ b/src/script/lua_api/l_env.cpp @@ -407,6 +407,46 @@ int ModApiEnvMod::l_get_node_light(lua_State *L) return 1; } + +// get_natural_light(pos, timeofday) +// pos = {x=num, y=num, z=num} +// timeofday: nil = current time, 0 = night, 0.5 = day +int ModApiEnvMod::l_get_natural_light(lua_State *L) +{ + GET_ENV_PTR; + + v3s16 pos = read_v3s16(L, 1); + + bool is_position_ok; + MapNode n = env->getMap().getNode(pos, &is_position_ok); + if (!is_position_ok) + return 0; + + // If the daylight is 0, nothing needs to be calculated + u8 daylight = n.param1 & 0x0f; + if (daylight == 0) { + lua_pushinteger(L, 0); + return 1; + } + + u32 time_of_day; + if (lua_isnumber(L, 2)) { + time_of_day = 24000.0 * lua_tonumber(L, 2); + time_of_day %= 24000; + } else { + time_of_day = env->getTimeOfDay(); + } + u32 dnr = time_to_daynight_ratio(time_of_day, true); + + // If it's the same as the artificial light, the sunlight needs to be + // searched for because the value may not emanate from the sun + if (daylight == n.param1 >> 4) + daylight = env->findSunlight(pos); + + lua_pushinteger(L, dnr * daylight / 1000); + return 1; +} + // place_node(pos, node) // pos = {x=num, y=num, z=num} int ModApiEnvMod::l_place_node(lua_State *L) @@ -1358,6 +1398,7 @@ void ModApiEnvMod::Initialize(lua_State *L, int top) API_FCT(get_node); API_FCT(get_node_or_nil); API_FCT(get_node_light); + API_FCT(get_natural_light); API_FCT(place_node); API_FCT(dig_node); API_FCT(punch_node); |