From 6dbe96751c03e946a98bfa20b0a52ae3980c4d06 Mon Sep 17 00:00:00 2001
From: Hirmuolio <22011552+Hirmuolio@users.noreply.github.com>
Date: Sat, 27 Aug 2022 06:37:24 +0300
Subject: [PATCH] passive solar panel (#60445)

---
 src/bionics.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/bionics.cpp b/src/bionics.cpp
index 818200e893eba..b62a447fe8c98 100644
--- a/src/bionics.cpp
+++ b/src/bionics.cpp
@@ -1568,8 +1568,9 @@ void Character::passive_power_gen( const bionic &bio )
         }
 
         if( fuel == fuel_type_sun_light ) {
-            const double modifier = g->natural_light_level( pos().z ) / default_daylight_level();
-            mod_power_level( units::from_kilojoule( fuel_energy ) * modifier * effective_passive_efficiency );
+            const float intensity = incident_sun_irradiance( current_weather( pos() ),
+                                    calendar::turn ) / max_sun_irradiance();
+            mod_power_level( units::from_kilojoule( fuel_energy ) * intensity * effective_passive_efficiency );
         } else if( fuel == fuel_type_wind ) {
             int vehwindspeed = 0;
             const optional_vpart_position vp = here.veh_at( pos() );