From 758ce121628c8bdc04d8a4791a220e2d278733eb Mon Sep 17 00:00:00 2001
From: Alexsandro Percy <alexsandro.percy@gmail.com>
Date: Thu, 24 Aug 2023 19:26:48 -0300
Subject: [PATCH] fixed crash by nil positions on destruction effects

---
 lib_planes/utilities.lua | 1 +
 physics_lib.lua          | 1 +
 2 files changed, 2 insertions(+)

diff --git a/lib_planes/utilities.lua b/lib_planes/utilities.lua
index 691bb67..d320c06 100644
--- a/lib_planes/utilities.lua
+++ b/lib_planes/utilities.lua
@@ -680,6 +680,7 @@ function airutils.pid_controller(current_value, setpoint, last_error, d_time, kp
 end
 
 function airutils.add_destruction_effects(pos, radius, w_fire)
+    if pos == nil then return end
     w_fire = w_fire
     if w_fire == nil then w_fire = true end
 	local node = airutils.nodeatpos(pos)
diff --git a/physics_lib.lua b/physics_lib.lua
index fb5d38d..d6702f5 100755
--- a/physics_lib.lua
+++ b/physics_lib.lua
@@ -61,6 +61,7 @@ function airutils.get_node_pos(pos)
 end
 
 function airutils.nodeatpos(pos)
+    if pos == nil then return end
 	local node = minetest.get_node_or_nil(pos)
 	if node then return minetest.registered_nodes[node.name] end
 end