void playKey_callback(GLFWwindow* window) { //Recognizing if the player wants to move its character if (glfwGetKey(window, GLFW_KEY_UP)) { geko.moveForward(); } if (glfwGetKey(window, GLFW_KEY_DOWN)) { geko.moveBackward(); } if (glfwGetKey(window, GLFW_KEY_RIGHT)) { geko.moveRight(); } if (glfwGetKey(window, GLFW_KEY_LEFT)) { geko.moveLeft(); } }