transform guizmos, math and bugfixing file open/save

open_engine/include/open_engine.hpp

@@ -31,4 +31,5 @@
 #include "open_engine/renderer/shader.hpp"
 #include "open_engine/scene/entity.hpp"
 #include "open_engine/scene/scene.hpp"
+
 #endif // OPEN_ENGINE_HPP

open_engine/include/open_engine/math/math.hpp

@@ -0,0 +1,13 @@
+#ifndef MATH_HPP
+#define MATH_HPP
+
+#include <glm/fwd.hpp>
+
+namespace OpenEngine::Math {
+
+    bool DecomposeTransform(const glm::mat4& transform,
+            glm::vec3& out_translation, glm::vec3& out_rotation,
+            glm::vec3& out_scale);
+}
+
+#endif // MATH_HPP

open_engine/include/open_engine/scene/components.hpp

@@ -9,6 +9,10 @@
 #include <glm/gtc/type_ptr.hpp>
 #include <glm/fwd.hpp>
 #include <glm/glm.hpp>
+
+#define GLM_ENABLE_EXPERIMENTAL
+#include <glm/gtx/quaternion.hpp>
+
 #include <imgui_internal.h>
 #include <imgui.h>
 #include <string>
@@ -55,10 +59,7 @@ namespace OpenEngine {
         {
             glm::mat4 transform = glm::translate(glm::mat4(1.0f), translation);
 
-            transform *= glm::rotate(glm::mat4(1.0f), rotation.x, { 1, 0, 0 })
-                * glm::rotate(glm::mat4(1.0f), rotation.y, { 0, 1, 0 })
-                * glm::rotate(glm::mat4(1.0f), rotation.z, { 0, 0, 1 });
-
+            transform *= glm::toMat4(glm::quat(rotation));
             transform *= glm::scale(glm::mat4(1.0f), scale);
 
             return transform;

open_engine/include/open_engine/scene/scene.hpp

@@ -22,6 +22,8 @@ namespace OpenEngine {
 
             entt::registry& GetRegistry() { return registry; };
 
+            Entity GetPrimaryCamera();
+
         private:
             entt::registry registry;