Init divided into functions

Fix #4

CppGame/main.cpp

@@ -34,25 +34,30 @@ const char* fragmentShaderSource = "#version 330 core\n"
 "   FragColor = vertexColor;\n"
 "}\n\0";
 
-//Main that creates playable window
-int main()
-{
-    // glfw  INIT
-    // --------------------
+void showHighscoreTable(long player_time,int player_level) {
+    auto highscore_module = HighscoreModule("highscore.txt");
+    highscore_module.Show();
+    std::cout << "You finished at level " << player_time << " in " << player_level << " seconds! Enter your name: ";
+    std::string name;
+    std::cin >> name;
+    highscore_module.Store(player_time, player_level, name);
+}
+
+void myGlfwInit() {
     glfwInit();
     glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
     glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
     glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+}
 
-
-    // glfw window creation
-    // --------------------
-    GLFWwindow* window = glfwCreateWindow(800, 800, "LearnOpenGL", NULL, NULL);
+GLFWwindow* createWindow()
+{
+    GLFWwindow* window = glfwCreateWindow(800, 800, "Pod roukou tmy", NULL, NULL);
     if (window == NULL)
     {
         std::cout << "Failed to create GLFW window" << std::endl;
         glfwTerminate();
-        return -1;
+        return NULL;
     }
     glfwMakeContextCurrent(window);
     glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
@@ -61,7 +66,9 @@ int main()
     if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
         std::cout << "Failed to initialise GLAD" << std::endl;
     }
-    //Compile Vertex Shader
+}
+
+unsigned int createShaderProgram() {
     unsigned int vertexShader;
     vertexShader = glCreateShader(GL_VERTEX_SHADER);
     glShaderSource(vertexShader, 1, &vertexShaderSource, NULL);
@@ -95,6 +102,11 @@ int main()
     glDeleteShader(vertexShader);
     glDeleteShader(fragmentShader);
 
+    return shaderProgram;
+}
+
+unsigned int prepareOpenGLBuffers()
+{
     unsigned int VAO; //vertex array object
     glGenVertexArrays(1, &VAO);
     unsigned int VBO; //vertex buffer object
@@ -110,11 +122,25 @@ int main()
     glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void*)(2 * sizeof(float)));
     glEnableVertexAttribArray(1);
 
+    return VAO;
+}
+//Main that creates playable window
+int main()
+{
+    myGlfwInit();
+    
+
+    // glfw window creation
+    // --------------------
+    GLFWwindow* window = createWindow();
+    if (window == NULL)
+        return -1;
 
+    unsigned int shaderProgram = createShaderProgram();
 
     //set glfw input mode to stick keys (stay pressed until polling)
     glfwSetInputMode(window, GLFW_STICKY_KEYS, GLFW_TRUE);
-
+    unsigned int VAO = prepareOpenGLBuffers();
     Display display(VAO,shaderProgram);
 
     // runtime variables
@@ -126,7 +152,7 @@ int main()
     bool game_over=false;
     time_t start_time= time(NULL); //sets start clock in
     long runtime_s = 0; 
-    auto highscore_module = HighscoreModule("highscore.txt");
+    
     //main game loop
     while (!glfwWindowShouldClose(window))
     {
@@ -171,11 +197,7 @@ int main()
     //highscore
     if(runtime_s==0)
         runtime_s = (long)difftime(time(NULL), start_time);
-    highscore_module.Show();
-    std::cout << "You finished at level " << level_counter << " in " << runtime_s << " seconds! Enter your name: ";
-    std::string name;
-    std::cin >> name;
-    highscore_module.Store(runtime_s, level_counter, name);
+    showHighscoreTable(runtime_s,level_counter);
 
     return 0;
 }