From 4f0050f019f0fc4bf4bd79493be890214d055431 Mon Sep 17 00:00:00 2001
From: Relintai <relintai@relintai.net>
Date: Fri, 4 Apr 2025 15:44:53 +0200
Subject: [PATCH] Added light_mode property to TerrainLight.

---
 modules/terraman/data/terrain_light.cpp | 20 ++++++++++++++++++++
 modules/terraman/data/terrain_light.h   | 13 +++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/modules/terraman/data/terrain_light.cpp b/modules/terraman/data/terrain_light.cpp
index 5164fb680..819b522df 100644
--- a/modules/terraman/data/terrain_light.cpp
+++ b/modules/terraman/data/terrain_light.cpp
@@ -114,6 +114,13 @@ void TerrainLight::set_specular(const real_t value) {
 	_specular = value;
 }
 
+TerrainLight::LightMode TerrainLight::get_light_mode() const {
+	return _light_mode;
+}
+void TerrainLight::set_light_mode(const LightMode value) {
+	_light_mode = value;
+}
+
 Dictionary TerrainLight::to_dict() {
 	Dictionary data;
 
@@ -132,6 +139,8 @@ Dictionary TerrainLight::to_dict() {
 	data["negative"] = _negative;
 	data["specular"] = _specular;
 
+	data["light_mode"] = (int)_light_mode;
+
 	return data;
 }
 void TerrainLight::from_dict(const Dictionary &p_data) {
@@ -149,6 +158,8 @@ void TerrainLight::from_dict(const Dictionary &p_data) {
 	_indirect_energy = p_data["indirect_energy"];
 	_negative = p_data["negative"];
 	_specular = p_data["specular"];
+
+	_light_mode = (LightMode)((int)p_data["light_mode"]);
 }
 
 TerrainLight::TerrainLight() {
@@ -160,6 +171,7 @@ TerrainLight::TerrainLight() {
 	_indirect_energy = 0;
 	_negative = false;
 	_specular = 0;
+	_light_mode = LIGHT_MODE_ADD;
 }
 
 TerrainLight::~TerrainLight() {
@@ -219,6 +231,10 @@ void TerrainLight::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_specular", "value"), &TerrainLight::set_specular);
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "light_specular"), "set_specular", "get_specular");
 
+	ClassDB::bind_method(D_METHOD("get_light_mode"), &TerrainLight::get_light_mode);
+	ClassDB::bind_method(D_METHOD("set_light_mode", "value"), &TerrainLight::set_light_mode);
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "light_mode", PROPERTY_HINT_ENUM, "Add,Sub,Mix"), "set_light_mode", "get_light_mode");
+
 	ClassDB::bind_method(D_METHOD("to_dict"), &TerrainLight::to_dict);
 	ClassDB::bind_method(D_METHOD("from_dict", "data"), &TerrainLight::from_dict);
 
@@ -226,4 +242,8 @@ void TerrainLight::_bind_methods() {
 #ifdef MODULE_PROPS_ENABLED
 	BIND_ENUM_CONSTANT(OWNER_TYPE_PROP);
 #endif
+
+	BIND_ENUM_CONSTANT(LIGHT_MODE_ADD);
+	BIND_ENUM_CONSTANT(LIGHT_MODE_SUB);
+	BIND_ENUM_CONSTANT(LIGHT_MODE_MIX);
 }
diff --git a/modules/terraman/data/terrain_light.h b/modules/terraman/data/terrain_light.h
index 99b9878df..233df09ec 100644
--- a/modules/terraman/data/terrain_light.h
+++ b/modules/terraman/data/terrain_light.h
@@ -49,6 +49,13 @@ public:
 #endif
 	};
 
+	enum LightMode {
+		LIGHT_MODE_ADD = 0,
+		LIGHT_MODE_SUB,
+		LIGHT_MODE_MIX,
+		//LIGHT_MODE_MASK
+	};
+
 	OwnerType get_owner_type() const;
 	void set_owner_type(const OwnerType p_value);
 
@@ -82,6 +89,9 @@ public:
 	real_t get_specular() const;
 	void set_specular(const real_t value);
 
+	LightMode get_light_mode() const;
+	void set_light_mode(const LightMode value);
+
 	Dictionary to_dict();
 	void from_dict(const Dictionary &p_data);
 
@@ -106,8 +116,11 @@ private:
 	real_t _indirect_energy;
 	bool _negative;
 	real_t _specular;
+
+	LightMode _light_mode;
 };
 
 VARIANT_ENUM_CAST(TerrainLight::OwnerType);
+VARIANT_ENUM_CAST(TerrainLight::LightMode);
 
 #endif