Fix editor scene persistence and XC scene workflow

engine/src/Components/LightComponent.cpp

@@ -0,0 +1,64 @@
+#include "Components/LightComponent.h"
+
+#include <algorithm>
+#include <sstream>
+
+namespace XCEngine {
+namespace Components {
+
+void LightComponent::SetIntensity(float value) {
+    m_intensity = std::max(0.0f, value);
+}
+
+void LightComponent::SetRange(float value) {
+    m_range = std::max(0.001f, value);
+}
+
+void LightComponent::SetSpotAngle(float value) {
+    m_spotAngle = std::clamp(value, 1.0f, 179.0f);
+}
+
+void LightComponent::Serialize(std::ostream& os) const {
+    os << "type=" << static_cast<int>(m_lightType) << ";";
+    os << "color=" << m_color.r << "," << m_color.g << "," << m_color.b << "," << m_color.a << ";";
+    os << "intensity=" << m_intensity << ";";
+    os << "range=" << m_range << ";";
+    os << "spotAngle=" << m_spotAngle << ";";
+    os << "shadows=" << (m_castsShadows ? 1 : 0) << ";";
+}
+
+void LightComponent::Deserialize(std::istream& is) {
+    std::string token;
+    while (std::getline(is, token, ';')) {
+        if (token.empty()) {
+            continue;
+        }
+
+        const size_t eqPos = token.find('=');
+        if (eqPos == std::string::npos) {
+            continue;
+        }
+
+        const std::string key = token.substr(0, eqPos);
+        std::string value = token.substr(eqPos + 1);
+
+        if (key == "type") {
+            m_lightType = static_cast<LightType>(std::stoi(value));
+        } else if (key == "color") {
+            std::replace(value.begin(), value.end(), ',', ' ');
+            std::istringstream ss(value);
+            ss >> m_color.r >> m_color.g >> m_color.b >> m_color.a;
+        } else if (key == "intensity") {
+            SetIntensity(std::stof(value));
+        } else if (key == "range") {
+            SetRange(std::stof(value));
+        } else if (key == "spotAngle") {
+            SetSpotAngle(std::stof(value));
+        } else if (key == "shadows") {
+            m_castsShadows = (std::stoi(value) != 0);
+        }
+    }
+}
+
+} // namespace Components
+} // namespace XCEngine