From 9250b5205a6c627dfa18b7870b454d74f8d9dae6 Mon Sep 17 00:00:00 2001
From: Elias Fleckenstein
 <54945686+EliasFleckenstein03@users.noreply.github.com>
Date: Tue, 29 Dec 2020 16:50:09 +0100
Subject: Add minetest.get_objects_in_area (#10668)

---
 src/script/lua_api/l_env.cpp | 26 ++++++++++++++++++++++++++
 src/script/lua_api/l_env.h   |  3 +++
 2 files changed, 29 insertions(+)

(limited to 'src/script/lua_api')

diff --git a/src/script/lua_api/l_env.cpp b/src/script/lua_api/l_env.cpp
index 021ef2ea7..c75fc8dc7 100644
--- a/src/script/lua_api/l_env.cpp
+++ b/src/script/lua_api/l_env.cpp
@@ -743,6 +743,31 @@ int ModApiEnvMod::l_get_objects_inside_radius(lua_State *L)
 	return 1;
 }
 
+// get_objects_in_area(pos, minp, maxp)
+int ModApiEnvMod::l_get_objects_in_area(lua_State *L)
+{
+	GET_ENV_PTR;
+	ScriptApiBase *script = getScriptApiBase(L);
+	
+	v3f minp = read_v3f(L, 1) * BS;
+	v3f maxp = read_v3f(L, 2) * BS;
+	aabb3f box(minp, maxp);
+	box.repair();
+	std::vector<ServerActiveObject *> objs;
+
+	auto include_obj_cb = [](ServerActiveObject *obj){ return !obj->isGone(); };
+	env->getObjectsInArea(objs, box, include_obj_cb);
+
+	int i = 0;
+	lua_createtable(L, objs.size(), 0);
+	for (const auto obj : objs) {
+		// Insert object reference into table
+		script->objectrefGetOrCreate(L, obj);
+		lua_rawseti(L, -2, ++i);
+	}
+	return 1;
+}
+
 // set_timeofday(val)
 // val = 0...1
 int ModApiEnvMod::l_set_timeofday(lua_State *L)
@@ -1413,6 +1438,7 @@ void ModApiEnvMod::Initialize(lua_State *L, int top)
 	API_FCT(get_node_timer);
 	API_FCT(get_connected_players);
 	API_FCT(get_player_by_name);
+	API_FCT(get_objects_in_area);
 	API_FCT(get_objects_inside_radius);
 	API_FCT(set_timeofday);
 	API_FCT(get_timeofday);
diff --git a/src/script/lua_api/l_env.h b/src/script/lua_api/l_env.h
index 7f212b5fc..42c2d64f8 100644
--- a/src/script/lua_api/l_env.h
+++ b/src/script/lua_api/l_env.h
@@ -114,6 +114,9 @@ private:
 
 	// get_objects_inside_radius(pos, radius)
 	static int l_get_objects_inside_radius(lua_State *L);
+	
+	// get_objects_in_area(pos, minp, maxp)
+	static int l_get_objects_in_area(lua_State *L);
 
 	// set_timeofday(val)
 	// val = 0...1
-- 
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