From 40c87837902358cff5033fb59bf02a0760073f4e Mon Sep 17 00:00:00 2001
From: Andrei Kortunov <andrei.kortunov@yandex.ru>
Date: Tue, 26 Sep 2023 18:09:52 +0400
Subject: [PATCH] Handle actors processing range in Lua

---
 apps/openmw/mwlua/types/actor.cpp | 20 ++++++++++++++++++++
 files/lua_api/openmw/types.lua    |  6 ++++++
 2 files changed, 26 insertions(+)

diff --git a/apps/openmw/mwlua/types/actor.cpp b/apps/openmw/mwlua/types/actor.cpp
index 6edb363cd0..58c4d83cf4 100644
--- a/apps/openmw/mwlua/types/actor.cpp
+++ b/apps/openmw/mwlua/types/actor.cpp
@@ -4,9 +4,11 @@
 
 #include <components/detournavigator/agentbounds.hpp>
 #include <components/lua/luastate.hpp>
+#include <components/settings/values.hpp>
 
 #include "apps/openmw/mwbase/mechanicsmanager.hpp"
 #include "apps/openmw/mwbase/windowmanager.hpp"
+#include "apps/openmw/mwmechanics/actorutil.hpp"
 #include "apps/openmw/mwmechanics/creaturestats.hpp"
 #include "apps/openmw/mwmechanics/drawstate.hpp"
 #include "apps/openmw/mwworld/class.hpp"
@@ -374,6 +376,24 @@ namespace MWLua
             result["halfExtents"] = agentBounds.mHalfExtents;
             return result;
         };
+        actor["isInActorsProcessingRange"] = [](const Object& o) {
+            const MWWorld::Ptr player = MWMechanics::getPlayer();
+            const auto& target = o.ptr();
+            if (target == player)
+                return true;
+
+            if (!target.getClass().isActor())
+                throw std::runtime_error("Actor expected");
+
+            if (target.getCell()->getCell()->getWorldSpace() != player.getCell()->getCell()->getWorldSpace())
+                return false;
+
+            const int actorsProcessingRange = Settings::game().mActorsProcessingRange;
+            const osg::Vec3f playerPos = player.getRefData().getPosition().asVec3();
+
+            const float dist = (playerPos - target.getRefData().getPosition().asVec3()).length();
+            return dist <= actorsProcessingRange;
+        };
 
         addActorStatsBindings(actor, context);
         addActorMagicBindings(actor, context);
diff --git a/files/lua_api/openmw/types.lua b/files/lua_api/openmw/types.lua
index df6e17c6f4..e86ae993c6 100644
--- a/files/lua_api/openmw/types.lua
+++ b/files/lua_api/openmw/types.lua
@@ -15,6 +15,12 @@
 -- @param openmw.core#GameObject actor
 -- @return #table with `shapeType` and `halfExtents`
 
+---
+-- Check if given actor is in the actors processing range.
+-- @function [parent=#Actor] isInActorsProcessingRange
+-- @param openmw.core#GameObject actor
+-- @return #boolean
+
 ---
 -- Whether the object is an actor.
 -- @function [parent=#Actor] objectIsInstance