Make everything work

src/game.cpp

@@ -20,12 +20,6 @@ Game::Game()
 
     main_window.create(sf::VideoMode(window_side * 3, window_side * 3), "SFML-Test Application", sf::Style::Default);
     main_window.setActive();
-
-    level->getCellAt(0, 0)->setHeightShift(15);
-    level->getCellAt(0, 1)->setHeightShift(10);
-
-    current_level = 1;
-    //loadLevel(current_level);
 }
 
 int Game::run()

src/level.cpp

@@ -3,6 +3,7 @@
 #include <sstream>
 #include <fstream>
 #include <algorithm>
+#include <iostream>
 
 template<typename D, typename B>  // [D]erived - [B]ase
 std::unique_ptr<D> static_unique_pointer_cast(std::unique_ptr<B>&& old)
@@ -28,6 +29,7 @@ void Level::Map::init(const std::string &map_file_name)
             continue;
         }
 
+        sstr.clear();
         sstr.str(cur_line);
         switch (cur_section)
         {
@@ -74,10 +76,11 @@ void Level::Map::readMapSize(std::istringstream &sstr)
 
 void Level::Map::readMapRow(std::istringstream &sstr)
 {
-    data.push_back(Row());
+    data.emplace_back(Row());
-    for (int cell_type; sstr >> cell_type;)
+    int cell_type;
+    while (sstr >> cell_type)
     {
-        data.back().push_back(default_cells[cell_type]->clone());
+        data.back().emplace_back(default_cells[cell_type]->clone());
         data.back().back()->setPosition(data.size()-1, data.back().size()-1);
     }
 }