save stuff

engine/include/save.hpp

@@ -0,0 +1,12 @@
+#ifndef SAVE_HPP
+#define SAVE_HPP
+
+#include <rapidxml/rapidxml.hpp>
+#include <rapidxml/rapidxml_ext.hpp>
+#include <rapidxml/rapidxml_print.hpp>
+#include "parse.hpp"
+#include "Camera.hpp"
+
+void savetoFile(std::string original_scene, const Camera& cam);
+
+#endif

engine/src/main.cpp

@@ -20,6 +20,7 @@ extern "C" {
 #include "parse.hpp"
 #include "input.hpp"
 #include "controller.hpp"
+#include "save.hpp"
 
 std::string filename;
 bool simple = false;
@@ -124,6 +125,10 @@ void setupModels(Group& group) {
   }
 }
 
+void saveCurrent() {
+  savetoFile(filename, camera);
+}
+
 void hotReload() {
   setupConfig((char*) filename.c_str());
   setupModels(c.group);
@@ -172,10 +177,15 @@ void renderMenu() {
         resetCamera();
       }
       ImGui::SameLine();
-      ImGui::Button("Hot Reload", ImVec2(100, 20));
+      ImGui::Button("Hot Reload", ImVec2(80, 20));
       if (ImGui::IsItemClicked()) {
         hotReload();
       }
+      ImGui::SameLine();
+      ImGui::Button("Save", ImVec2(50, 20));
+      if (ImGui::IsItemClicked()) {
+        saveCurrent();
+      }
       ImGui::End();
     }
     if(models_menus){

engine/src/parse.cpp

@@ -64,7 +64,6 @@ Configuration parseConfig(std::string filename) {
 
   // camera information
   rapidxml::xml_node<>* camera = root->first_node("camera");
-
   rapidxml::xml_node<>* position_n = camera->first_node("position");
   glm::vec3 position = glm::vec3(std::stof(position_n->first_attribute("x")->value()),
                          std::stof(position_n->first_attribute("y")->value()),

engine/src/save.cpp

@@ -0,0 +1,42 @@
+#include "save.hpp"
+
+void savetoFile(std::string original_scene, const Camera& cam) {
+    std::ifstream file(original_scene);
+    std::string xmlContent((std::istreambuf_iterator<char>(file)),
+                           std::istreambuf_iterator<char>());
+    file.close();
+
+    rapidxml::xml_document<> doc;
+    doc.parse<0>(&xmlContent[0]);
+
+    rapidxml::xml_node<>* root = doc.first_node("world");
+    rapidxml::xml_node<>* camera = root->first_node("camera");
+    rapidxml::xml_node<>* position_n = camera->first_node("position");
+    rapidxml::xml_node<>* lookat_n = camera->first_node("lookAt");
+
+    auto set_or_update_attribute = [&doc](rapidxml::xml_node<>* node, const char* attr_name, float value) {
+        rapidxml::xml_attribute<>* attr = node->first_attribute(attr_name);
+        if (!attr) {
+            char* attr_value = doc.allocate_string(std::to_string(value).c_str());
+            attr = doc.allocate_attribute(attr_name, attr_value);
+            node->append_attribute(attr);
+        } else {
+            attr->value(doc.allocate_string(std::to_string(value).c_str()));
+        }
+    };
+
+    set_or_update_attribute(position_n, "x", cam.position.x);
+    set_or_update_attribute(position_n, "y", cam.position.y);
+    set_or_update_attribute(position_n, "z", cam.position.z);
+
+    glm::vec3 lookat = cam.position + cam.forward;
+
+    set_or_update_attribute(lookat_n, "x", lookat.x);
+    set_or_update_attribute(lookat_n, "y", lookat.y);
+    set_or_update_attribute(lookat_n, "z", lookat.z);
+
+    std::ofstream out_file("scenes/last_scene.xml");
+
+    out_file << doc;
+    out_file.close();
+}

imgui.ini

@@ -9,12 +9,12 @@ Size=325,139
 Collapsed=0
 
 [Window][Options]
-Pos=15,169
+Pos=16,168
 Size=312,124
 Collapsed=0
 
 [Window][Models]
 Pos=17,306
-Size=254,69
+Size=297,183
 Collapsed=0