Add API to control shadow intensity from the game/mod (#11944)

* Also Disable shadows when sun/moon is hidden. Fixes #11972.

1 files changed, 8 insertions, 2 deletions

diff --git a/src/client/shadows/dynamicshadowsrender.h b/src/client/shadows/dynamicshadowsrender.h
index e4b3c3e22..dc8f79c56 100644
--- a/src/client/shadows/dynamicshadowsrender.h
+++ b/src/client/shadows/dynamicshadowsrender.h
@@ -82,11 +82,12 @@ public:
 	}
 
 
-	bool is_active() const { return m_shadows_enabled; }
+	bool is_active() const { return m_shadows_enabled && shadowMapTextureFinal != nullptr; }
 	void setTimeOfDay(float isDay) { m_time_day = isDay; };
+	void setShadowIntensity(float shadow_intensity);
 
 	s32 getShadowSamples() const { return m_shadow_samples; }
-	float getShadowStrength() const { return m_shadow_strength; }
+	float getShadowStrength() const { return m_shadows_enabled ? m_shadow_strength : 0.0f; }
 	float getTimeOfDay() const { return m_time_day; }
 
 private:
@@ -101,6 +102,9 @@ private:
 	void mixShadowsQuad();
 	void updateSMTextures();
 
+	void disable();
+	void enable() { m_shadows_enabled = m_shadows_supported; }
+
 	// a bunch of variables
 	IrrlichtDevice *m_device{nullptr};
 	scene::ISceneManager *m_smgr{nullptr};
@@ -116,12 +120,14 @@ private:
 	std::vector<NodeToApply> m_shadow_node_array;
 
 	float m_shadow_strength;
+	float m_shadow_strength_gamma;
 	float m_shadow_map_max_distance;
 	float m_shadow_map_texture_size;
 	float m_time_day{0.0f};
 	int m_shadow_samples;
 	bool m_shadow_map_texture_32bit;
 	bool m_shadows_enabled;
+	bool m_shadows_supported;
 	bool m_shadow_map_colored;
 	u8 m_map_shadow_update_frames; /* Use this number of frames to update map shaodw */
 	u8 m_current_frame{0}; /* Current frame */