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<div class="title">source/data/LevelReader.cpp</div> </div>
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<a href="_level_reader_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#include "<a class="code" href="_level_reader_8h.html">LevelReader.h</a>"</span>
<a name="l00002"></a>00002
<a name="l00003"></a><a class="code" href="class_level_reader.html#ad093a54f9753a22dd66748b82a08c1fd">00003</a> <a class="code" href="class_level_reader.html#ad093a54f9753a22dd66748b82a08c1fd" title="Constructor that stores the path of the file containing the level to be read with the readLevel funct...">LevelReader::LevelReader</a>(<span class="keywordtype">string</span> filename)
<a name="l00004"></a>00004 :_filename(filename)
<a name="l00005"></a>00005 {}
<a name="l00006"></a>00006
<a name="l00007"></a><a class="code" href="class_level_reader.html#a27277149f3270e040c8ffeadbca79758">00007</a> <span class="keywordtype">void</span> <a class="code" href="class_level_reader.html#a27277149f3270e040c8ffeadbca79758" title="Function to read the chosen file into the data structures used in the game.">LevelReader::readLevel</a>(<a class="code" href="class_maze.html" title="A rectangular 2D boolean array, representing where cars can drive and where they cannot.">Maze</a>& maze, list<PlayerCar>& players, list<EnemyCar>& enemies, list<Checkpoint>& checkpoints, list<Rock>& rocks)
<a name="l00008"></a>00008 {
<a name="l00009"></a>00009 ifstream file(<a class="code" href="class_level_reader.html#a233910d4cd16ff624d76b06ca8071f7e" title="Path of the file containing the level.">_filename</a>.c_str());
<a name="l00010"></a>00010 <span class="keywordflow">if</span> (!file)
<a name="l00011"></a>00011 {
<a name="l00012"></a>00012 al_show_native_message_box(NULL, <span class="stringliteral">"Fatal error"</span>, <span class="stringliteral">"Fatal error"</span>, <span class="stringliteral">"The requested level file could not be opened."</span>, NULL, ALLEGRO_MESSAGEBOX_ERROR);
<a name="l00013"></a>00013 <span class="keywordflow">throw</span> <a class="code" href="class_file_open_error.html" title="An exception that is thrown if the file selected for opening does not exist.">FileOpenError</a>();
<a name="l00014"></a>00014 }
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <span class="keywordtype">int</span> maxX = 0;
<a name="l00017"></a>00017 <span class="keywordtype">int</span> maxY = 0;
<a name="l00018"></a>00018
<a name="l00019"></a>00019 <span class="keywordtype">string</span> line;
<a name="l00020"></a>00020 <span class="keywordtype">char</span> element;
<a name="l00021"></a>00021 <span class="keywordtype">int</span> y = 0;
<a name="l00022"></a>00022 vector <pair<int, int> > walls;
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="keywordflow">while</span> (!file.eof())
<a name="l00025"></a>00025 {
<a name="l00026"></a>00026 getline (file, line);
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> x = 0; x < static_cast<int>(line.length()); ++x)
<a name="l00029"></a>00029 {
<a name="l00030"></a>00030 element = line.at(x);
<a name="l00031"></a>00031 <span class="keywordflow">switch</span> (element)
<a name="l00032"></a>00032 {
<a name="l00033"></a>00033 <span class="keywordflow">case</span> <a class="code" href="class_level_reader.html#a8de3d894f4e67a7a0f66f6dfc3a7fbe1" title="Character represented a PlayerCar in the level file.">PLAYER_CHAR</a>: players.push_back(<a class="code" href="class_player_car.html" title="A GameObject that is controlled by the player.">PlayerCar</a>(x,y));
<a name="l00034"></a>00034 <span class="keywordflow">break</span>;
<a name="l00035"></a>00035 <span class="keywordflow">case</span> <a class="code" href="class_level_reader.html#a67d3735d6a3e40fa61527dd1ff7cfa22" title="Character represented an EnemyCar in the level file.">ENEMY_CHAR</a>: enemies.push_back (<a class="code" href="class_enemy_car.html" title="GameObject that chases the player around the maze.">EnemyCar</a>(x,y));
<a name="l00036"></a>00036 <span class="keywordflow">break</span>;
<a name="l00037"></a>00037 <span class="keywordflow">case</span> <a class="code" href="class_level_reader.html#ad401a0f48a3eac678c0f53e95ea1f354" title="Character represented a Checkpoint in the level file.">CHECKPOINT_CHAR</a>: checkpoints.push_back(<a class="code" href="class_checkpoint.html" title="GameObject that the player needs to pick up by driving over.">Checkpoint</a>(x,y));
<a name="l00038"></a>00038 <span class="keywordflow">break</span>;
<a name="l00039"></a>00039 <span class="keywordflow">case</span> <a class="code" href="class_level_reader.html#a321a0fcc5a9ae36a394782be4c71bd7d" title="Character represented a Rock in the level file.">ROCK_CHAR</a>: rocks.push_back(<a class="code" href="class_rock.html" title="A game object that acts as an obstacle to the player.">Rock</a>(x,y));
<a name="l00040"></a>00040 <span class="keywordflow">break</span>;
<a name="l00041"></a>00041 <span class="keywordflow">case</span> <a class="code" href="class_level_reader.html#a250f9fede6584dc196acce86a8e217f9" title="Character represented a solid part of the maze in the level file.">WALL_CHAR</a>: walls.push_back (make_pair(x,y));
<a name="l00042"></a>00042 <span class="keywordflow">break</span>;
<a name="l00043"></a>00043 }
<a name="l00044"></a>00044 <span class="keywordflow">if</span> (maxX < x) maxX = x;
<a name="l00045"></a>00045 <span class="keywordflow">if</span> (maxY < y) maxY = y;
<a name="l00046"></a>00046 }
<a name="l00047"></a>00047
<a name="l00048"></a>00048 ++y;
<a name="l00049"></a>00049 }
<a name="l00050"></a>00050
<a name="l00051"></a>00051 maze.<a class="code" href="class_maze.html#ae238f9a5dbae9418f78f158ced6decf8" title="Generates a new Maze from the vector of wall coordinates.">generateMaze</a> (walls, maxX, maxY);
<a name="l00052"></a>00052
<a name="l00053"></a>00053 file.close();
<a name="l00054"></a>00054 }
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