Implemented loading of config.xml, the loaded values are not used yet.

application.cc

@@ -1,8 +1,10 @@
 #include "application.hh"
 #include "loader.hh"
-
+using namespace tinyxml2;
 
 Application::Application() {
+    //load the config.xml
+    loadConfig();
     graphics = Graphics(glm::uvec2(1024, 786), 0.1f, 150.0f);
 }
 
@@ -74,3 +76,87 @@ int Application::getIgnoredMouseUpdates() {
 bool Application::isLocked() {
     return cameraLock;
 }
+
+void Application::loadConfig() {
+    XMLDocument* config = new XMLDocument();
+    const char* xmlFile = "../data/config.xml";
+    config->LoadFile(xmlFile);
+    if (config->ErrorID()!=0){
+        printf("Could not open config.xml!\n");
+        exit(-1);
+    }
+    XMLElement* resolution = config->FirstChildElement("resolution");
+    errorCheck(resolution->FirstChildElement("width")->QueryIntText(&windowWidth));
+    errorCheck(resolution->FirstChildElement("height")->QueryIntText(&windowHeight));
+    errorCheck(config->FirstChildElement("farPlane")->QueryFloatText(&farPlane));
+    const char* charCompositionsPath = config->FirstChildElement("compositionsPath")->GetText();
+    if(charCompositionsPath == NULL){
+        printf("XMLError: No compositionsPath found.\n");
+        exit(-1);
+    }
+    compositionsPath = charCompositionsPath;
+
+    const char* charShaderPath = config->FirstChildElement("shaderPath")->GetText();
+    if(charShaderPath == NULL){
+        printf("XMLError: No shaderPath found.\n");
+        exit(-1);
+    }
+    shaderPath = charShaderPath;
+
+    const char* charGeometryPath = config->FirstChildElement("geometryPath")->GetText();
+    if(charGeometryPath == NULL){
+        printf("XMLError: No geometryPath found.\n");
+        exit(-1);
+    }
+    geometryPath = charGeometryPath;
+
+    const char* charTexturePath = config->FirstChildElement("texturePath")->GetText();
+    if(charTexturePath == NULL){
+        printf("XMLError: No texturePath found.\n");
+        exit(-1);
+    }
+    texturePath = charTexturePath;
+
+    const char* charScriptPath = config->FirstChildElement("scriptPath")->GetText();
+    if(charScriptPath == NULL){
+        printf("XMLError: No scriptPath found.\n");
+        exit(-1);
+    }
+    scriptPath = charScriptPath;
+
+    const char* charHeightmapPath = config->FirstChildElement("heightmapPath")->GetText();
+    if(charHeightmapPath == NULL){
+        printf("XMLError: No heightmapPath found.\n");
+        exit(-1);
+    }
+    heightmapPath = charHeightmapPath;
+
+    const char* charLevelXmlPath = config->FirstChildElement("levelXmlPath")->GetText();
+    if(charLevelXmlPath == NULL){
+        printf("XMLError: No levelXmlPath found.\n");
+        exit(-1);
+    }
+    levelXmlPath = charLevelXmlPath;
+}
+
+void Application::errorCheck(XMLError error){
+    if (error) {
+        printf("XMLError: ");
+        if (error == XML_WRONG_ATTRIBUTE_TYPE) {
+            printf("Wrong attribute type.\n");
+        }
+        else if (error == XML_NO_ATTRIBUTE) {
+            printf("No attribute.\n");
+        }
+        else if (error == XML_CAN_NOT_CONVERT_TEXT) {
+            printf("Can not convert text.\n");
+        }
+        else if (error == XML_NO_TEXT_NODE) {
+            printf("No text.\n");
+        }
+        else {
+            printf("Unknown error.\n");
+        }
+        exit(-1);
+    }
+}

application.hh

@@ -4,6 +4,7 @@
 #include "physics.hh"
 #include "graphics.hh"
 #include "level.hh"
+#include "tinyxml2.hh"
 
 class Application {
     public:
@@ -19,11 +20,23 @@ class Application {
         int getIgnoredMouseUpdates();
         void ignoredOneMouseUpdate();
     private:
+        void loadConfig();
+        void errorCheck(tinyxml2::XMLError error);
         int ignoredMouseUpdates;
         bool focused;
         bool cameraLock;
         Graphics graphics;
         Level level;
+        int windowWidth;
+        int windowHeight;
+        float farPlane;
+        std::string compositionsPath;
+        std::string shaderPath;
+        std::string geometryPath;
+        std::string texturePath;
+        std::string scriptPath;
+        std::string heightmapPath;
+        std::string levelXmlPath;
 };
 
 #endif