pretty property panel components

open_engine/include/open_engine/scene/components.hpp

@@ -5,13 +5,20 @@
 #include "open_engine/scene/scene_camera.hpp"
 
 #include <cstring>
-#include <glm/glm.hpp>
+#include <glm/ext/matrix_transform.hpp>
 #include <glm/gtc/type_ptr.hpp>
+#include <glm/fwd.hpp>
+#include <glm/glm.hpp>
+#include <imgui_internal.h>
 #include <imgui.h>
 #include <string>
 
 namespace OpenEngine {
-    
+
+    void DrawVec3Control(const char* label, glm::vec3& values,
+            float reset_value = 0.0f, float column_width = 100.0f,
+            const std::array<const char*, 3> labels = {"x", "y", "z"});
+
     struct TagComponent
     {
         std::string tag;
@@ -36,19 +43,33 @@ namespace OpenEngine {
 
     struct TransformComponent
     {
-        glm::mat4 transform{ 1.0f };
+        glm::vec3 translation = { 0.0f, 0.0f, 0.0f };
+        glm::vec3 rotation = { 0.0f, 0.0f, 0.0f };
+        glm::vec3 scale = { 1.0f, 1.0f, 1.0f };
 
         TransformComponent() = default;
         TransformComponent(const TransformComponent&) = default;
-        TransformComponent(const glm::mat4& transform_mat)
-            : transform(transform_mat) {}
+        TransformComponent(const glm::vec3& position)
+            : translation(position) {}
 
-        operator glm::mat4() { return transform; };
-        operator const glm::mat4() const { return transform; };
+        glm::mat4 GetTransform() const
+        {
+            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::scale(glm::mat4(1.0f), scale);
+
+            return transform;
+        };
 
         void OnImGuiRender(Entity& entity)
         {
-            ImGui::DragFloat3("Position", glm::value_ptr(transform[3]), 0.1f);
+            DrawVec3Control("Position", translation);
+            DrawVec3Control("Rotation", rotation);
+            DrawVec3Control("Scale", scale);
         };
     };
 

open_engine/include/open_engine/scene/scene_camera.hpp

@@ -67,7 +67,7 @@ namespace OpenEngine {
             float fov = 45.0f;
             float perspective_near = 0.01f, perspective_far = 1000.0f;
 
-            float aspect_ratio = 0.0f;
+            float aspect_ratio = 16.0f/9.0f;
     };
 }