Level improve: add parser for level files

src/cell.cpp

@@ -46,7 +46,7 @@ bool PassableCell::onMovingTo(HeroPtr &hero, LevelPtr &level)
     return true;
 }
 
-CellPtr PassableCell::getDefaultInstance() const
+CellPtr PassableCell::clone() const
 {
     return std::make_unique<PassableCell>();
 }
@@ -69,7 +69,7 @@ bool WaterCell::onMovingTo(HeroPtr &hero, LevelPtr &level)
     return false;
 }
 
-CellPtr WaterCell::getDefaultInstance() const
+CellPtr WaterCell::clone() const
 {
     return std::make_unique<WaterCell>();
 }
@@ -94,7 +94,7 @@ bool WallCell::onMovingTo(HeroPtr &hero, LevelPtr &level)
     return false;
 }
 
-CellPtr WallCell::getDefaultInstance() const
+CellPtr WallCell::clone() const
 {
     return std::make_unique<WallCell>();
 }
@@ -120,7 +120,7 @@ bool ChargeCell::onMovingTo(HeroPtr &hero, LevelPtr &level)
     return true;
 }
 
-CellPtr ChargeCell::getDefaultInstance() const
+CellPtr ChargeCell::clone() const
 {
     return std::make_unique<ChargeCell>();
 }
@@ -143,7 +143,7 @@ bool ExitCell::onMovingTo(HeroPtr &hero, LevelPtr &level)
     return true;
 }
 
-CellPtr ExitCell::getDefaultInstance() const
+CellPtr ExitCell::clone() const
 {
     return std::make_unique<ExitCell>();
 }
@@ -174,7 +174,7 @@ void TeleportCell::setDestination(coordinate new_cell_row, coordinate new_cell_c
 	new_col = new_cell_col;
 }
 
-CellPtr TeleportCell::getDefaultInstance() const
+CellPtr TeleportCell::clone() const
 {
     return std::make_unique<TeleportCell>();
 }
@@ -182,6 +182,8 @@ CellPtr TeleportCell::getDefaultInstance() const
 
 ///////////////////////////////////////
 
+const std::vector<CELL_TYPE> TriggerCell::cells_to_cast { PASSABLE_CELL, WATER_CELL, WALL_CELL, EXIT_CELL };
+
 TriggerCell::TriggerCell(/*std::vector<CellPtr> &&cells_to_change,*/ coordinate cell_row, coordinate cell_col, const sf::Color &color) :
     Cell(cell_row, cell_col, color)
 {
@@ -194,27 +196,31 @@ TriggerCell::TriggerCell(/*std::vector<CellPtr> &&cells_to_change,*/ coordinate
 TriggerCell::~TriggerCell()
 {}
 
+void TriggerCell::addTarget(CellPtr &&cell)
+{
+    UNUSED(cell);
+    //cells.emplace_back(cell);
+}
+
 bool TriggerCell::onMovingTo(HeroPtr &hero, LevelPtr &level)
 {
     UNUSED(hero);
 
-	Map &map = level->mapArray();
-
 	// We replace needed cells with the ones that the trigger provides.
     for (CellPtr &cell : cells)
     {
         const coordinate &row = cell->row();
         const coordinate &col = cell->col();
 
-        map[row][col].release();
+        level->getCellAt(row, col).release();
-        map[row][col] = std::move(cell);
+        level->getCellAt(row, col) = std::move(cell);
     }
 	
 	// It's an impassable object, so player can't move to here.
     return false;
 }
 
-CellPtr TriggerCell::getDefaultInstance() const
+CellPtr TriggerCell::clone() const
 {
     return std::make_unique<TriggerCell>();
 }

src/cell.h

@@ -21,14 +21,14 @@ const sf::Color Pink   = sf::Color(255, 192, 203);
 const sf::Color Black  = sf::Color(  0,   0,   0);
 }
 
-enum CELL_TYPES {
+enum CELL_TYPE {
     PASSABLE_CELL = 0,
-    WATER_CELL,
+    WATER_CELL    = 1,
-    WALL_CELL,
+    WALL_CELL     = 2,
-    CHARGE_CELL,
+    CHARGE_CELL   = 3,
-    EXIT_CELL,
+    EXIT_CELL     = 4,
-    TELEPORT_CELL,
+    TELEPORT_CELL = 5,
-    TRIGGER_CELL,
+    TRIGGER_CELL  = 6,
 
     N_CELLS
 };
@@ -69,7 +69,7 @@ public:
     /// Determine if Hero can move onto this cell or not
     virtual bool onMovingTo(HeroPtr &hero, LevelPtr &level) = 0;
 
-    virtual CellPtr getDefaultInstance() const = 0;
+    virtual CellPtr clone() const = 0;
 };
 
 ///////////////////////////////////////
@@ -86,7 +86,7 @@ public:
 
     virtual bool onMovingTo(HeroPtr &hero, LevelPtr &level) override;
 
-    virtual CellPtr getDefaultInstance() const override;
+    virtual CellPtr clone() const override;
 };
 
 ///////////////////////////////////////
@@ -103,7 +103,7 @@ public:
 
     virtual bool onMovingTo(HeroPtr &hero, LevelPtr &level) override;
 
-    virtual CellPtr getDefaultInstance() const override;
+    virtual CellPtr clone() const override;
 };
 
 ///////////////////////////////////////
@@ -120,7 +120,7 @@ public:
 
     virtual bool onMovingTo(HeroPtr &hero, LevelPtr &level) override;
 
-    virtual CellPtr getDefaultInstance() const override;
+    virtual CellPtr clone() const override;
 };
 
 ///////////////////////////////////////
@@ -141,7 +141,7 @@ public:
 
     virtual bool onMovingTo(HeroPtr &hero, LevelPtr &level) override;
 
-    virtual CellPtr getDefaultInstance() const override;
+    virtual CellPtr clone() const override;
 };
 
 ///////////////////////////////////////
@@ -158,7 +158,7 @@ public:
 
     virtual bool onMovingTo(HeroPtr &hero, LevelPtr &level) override;
 
-    virtual CellPtr getDefaultInstance() const override;
+    virtual CellPtr clone() const override;
 };
 
 ///////////////////////////////////////
@@ -182,7 +182,7 @@ public:
 
     virtual bool onMovingTo(HeroPtr &hero, LevelPtr &level) override;
 
-    virtual CellPtr getDefaultInstance() const override;
+    virtual CellPtr clone() const override;
 };
 
 ///////////////////////////////////////
@@ -191,10 +191,13 @@ public:
 class TriggerCell final : public Cell
 {
 private:
-	// Vector of cells to place on map
+    // Vector of cells to place on map
     std::vector<CellPtr> cells;
 
 public:
+    // Vector of cell types you can cast in to
+    static const std::vector<CELL_TYPE> cells_to_cast;
+
     TriggerCell(//std::vector<CellPtr> &&cells_to_change,
                 coordinate cell_row = 0,
                 coordinate cell_col = 0,
@@ -202,9 +205,11 @@ public:
 
     virtual ~TriggerCell() override;
 
+    void addTarget(CellPtr &&cell);
+
     virtual bool onMovingTo(HeroPtr &hero, LevelPtr &level) override;
 
-    virtual CellPtr getDefaultInstance() const override;
+    virtual CellPtr clone() const override;
 };
 
 #endif // CELL_H

src/game.cpp

@@ -21,8 +21,8 @@ Game::Game()
     main_window.create(sf::VideoMode(window_side * 3, window_side * 3), "SFML-Test Application", sf::Style::Default);
     main_window.setActive();
 
-    level->mapArray()[0][0]->setHeightShift(15);
+    level->getCellAt(0, 0)->setHeightShift(15);
-    level->mapArray()[0][1]->setHeightShift(10);
+    level->getCellAt(0, 1)->setHeightShift(10);
 
     current_level = 1;
     //loadLevel(current_level);
@@ -107,14 +107,12 @@ void Game::onMoving(sf::Keyboard::Key &key)
 
     //////////////////////////
 
-    if (!level->mapArray()[attempt_row][attempt_col]->onMovingTo(hero, level))
+    if (!level->getCellAt(attempt_row, attempt_col)->onMovingTo(hero, level))
         hero->setPosition(initial_row, initial_col);
 }
 
 void Game::renderMap()
 {
-    const Map &map = level->mapArray();
-
     float painter_x = 60, painter_y = 60;
     float horizontal_shift = 0, vertical_shift = 0;
 
@@ -145,12 +143,11 @@ void Game::renderMap()
 
     // Draw map from 2D array
     for (coordinate x = 0; x < level->cols(); ++x)
-    {
+    {      
         horizontal_shift = static_cast<float>(level->cols()) * cell_deviation;
-
         for (coordinate y = 0; y < level->rows(); ++y)
         {
-			vertical_shift = static_cast<float>(map[y][x]->heightShift());
+            vertical_shift = static_cast<float>(level->getCellAt(y, x)->heightShift());
 			
 			// If cell has any height value, we should draw walls for it
             if (vertical_shift > 0)
@@ -166,7 +163,9 @@ void Game::renderMap()
                 convex_wall_brush.setPoint(5, sf::Vector2f(cell_width, cell_height));
 				convex_wall_brush.setOutlineThickness(0);
 				
-                sf::Color wall_color(sf::Uint8(map[y][x]->color().r - 40), sf::Uint8(map[y][x]->color().g - 40), sf::Uint8(map[y][x]->color().b - 40));
+                sf::Color wall_color(sf::Uint8(level->getCellAt(y, x)->color().r - 40),
+                                     sf::Uint8(level->getCellAt(y, x)->color().g - 40),
+                                     sf::Uint8(level->getCellAt(y, x)->color().b - 40));
                 convex_wall_brush.setFillColor(wall_color);
 				
                 convex_wall_brush.setPosition(painter_x + horizontal_shift, painter_y);
@@ -180,7 +179,7 @@ void Game::renderMap()
 			float final_y = painter_y - vertical_shift;
 			
             convex_brush.setPosition(final_x, final_y);
-            convex_brush.setFillColor(map[y][x]->color());
+            convex_brush.setFillColor(level->getCellAt(y, x)->color());
 			
             main_window.draw(convex_brush);
 

src/level.cpp

@@ -1,103 +1,143 @@
 #include "level.h"
 
+#include <sstream>
 #include <fstream>
-#include <cstring>
+#include <algorithm>
-
-void Level::prepareCellInstances()
-{
-    default_cells[PASSABLE_CELL] = new PassableCell();
-    default_cells[WATER_CELL] = new WaterCell();
-    default_cells[WALL_CELL] = new WallCell();
-    default_cells[CHARGE_CELL] = new ChargeCell();
-    default_cells[EXIT_CELL] = new ExitCell();
-    default_cells[TELEPORT_CELL] = new TeleportCell();
-    default_cells[TRIGGER_CELL] = new TriggerCell();
-}
-
-void Level::readMap(std::ifstream &file)
-{
-    int i;
-    for (coordinate j = 0; j < map.size(); ++j)
-    {
-        for (coordinate k = 0; k < map[j].size(); ++k)
-        {
-            file >> i;
-            map[j][k] = default_cells[i]->getDefaultInstance();
-            map[j][k]->setPosition(j, k);
-        }
-    }
-}
 
 template<typename D, typename B>  // [D]erived - [B]ase
-std::unique_ptr<D> static_unique_pointer_cast (std::unique_ptr<B>&& old)
+std::unique_ptr<D> static_unique_pointer_cast(std::unique_ptr<B>&& old)
 {
-    return std::unique_ptr<D>{static_cast<D*>(old.release())};
+    return std::unique_ptr<D>{static_cast<D *>(old.release())};
 }
 
-Level::Level(const std::string &map_file)
+void Level::Map::init(const std::string &map_file_name)
 {
-    prepareCellInstances();
+    prepareDefaultCells();
 
     std::ifstream file;
-    file.open(map_file);
+    file.open(map_file_name);
 
     std::string cur_line;
+    std::istringstream sstr;
+    SECTION cur_section = SECTION::NONE;
     while (getline(file, cur_line))
     {
-        // need fix; see std::string.compare
+        if (map_section.find(cur_line) != map_section.end())
-        if (cur_line.compare(0, 4, "size") == 0)
         {
-            file >> level_rows >> level_cols;
+            cur_section = map_section[cur_line];
-            map.resize(level_rows);
+            continue;
-            for (Row &row : map)
-                row.resize(level_cols);
         }
-        else if (cur_line.compare(0, 3, "map") == 0)
-        {
-            readMap(file);
-        }
-        else if (cur_line.compare(0, 8, "teleport") == 0)
-        {
-            coordinate src_row, src_col;
-            coordinate dest_row, dest_col;
 
-            file >> src_row >> src_col >> dest_row >> dest_col;
+        sstr.str(cur_line);
-            auto teleport_cell = static_unique_pointer_cast<TeleportCell>(std::move(map[src_row][src_col]));
+        switch (cur_section)
-			teleport_cell->setDestination(dest_row, dest_col);
+        {
-			map[src_row][src_col] = std::move(teleport_cell);
+        case SECTION::SIZE:
+            readMapSize(sstr);
+            break;
+
+        case SECTION::MAP:
+            readMapRow(sstr);
+            break;
+
+        case SECTION::TELEPORT:
+            readTeleport(sstr);
+            break;
+
+        case SECTION::TRIGGER:
+            readTrigger(sstr);
+            break;
+
+        default:
+            break;
         }
     }
+
+    file.close();
+}
+
+void Level::Map::prepareDefaultCells()
+{
+    default_cells[PASSABLE_CELL] = std::make_unique<PassableCell>();
+    default_cells[WATER_CELL] = std::make_unique<WaterCell>();
+    default_cells[WALL_CELL] = std::make_unique<WallCell>();
+    default_cells[CHARGE_CELL] = std::make_unique<ChargeCell>();
+    default_cells[EXIT_CELL] = std::make_unique<ExitCell>();
+    default_cells[TELEPORT_CELL] = std::make_unique<TeleportCell>();
+    default_cells[TRIGGER_CELL] = std::make_unique<TriggerCell>();
+}
+
+void Level::Map::readMapSize(std::istringstream &sstr)
+{
+    sstr >> rows >> cols;
+    data.reserve(rows * cols);
+}
+
+void Level::Map::readMapRow(std::istringstream &sstr)
+{
+    data.push_back(Row());
+    for (int cell_type; sstr >> cell_type;)
+    {
+        data.back().push_back(default_cells[cell_type]->clone());
+        data.back().back()->setPosition(data.size()-1, data.back().size()-1);
+    }
 }
 
-Level::~Level()
+void Level::Map::readTeleport(std::istringstream &sstr)
 {
-    for (Cell *cell : default_cells)
+    coordinate src_row, src_col;
-        delete cell;
+    coordinate dest_row, dest_col;
+
+    sstr >> src_row >> src_col >> dest_row >> dest_col;
+    auto teleport_cell = static_unique_pointer_cast<TeleportCell>(std::move(data[src_row][src_col]));
+    teleport_cell->setDestination(dest_row, dest_col);
+    data[src_row][src_col] = std::move(teleport_cell);
+}
+
+void Level::Map::readTrigger(std::istringstream &sstr)
+{
+    coordinate src_row, src_col;
+    coordinate dest_row, dest_col;
+    int cell_type;
+
+    sstr >> src_row >> src_col >> dest_row >> dest_col >> cell_type;
+
+    if (std::find(TriggerCell::cells_to_cast.begin(), TriggerCell::cells_to_cast.end(), cell_type) ==
+            TriggerCell::cells_to_cast.end())
+        return ;
+
+    auto trigger_cell = static_unique_pointer_cast<TriggerCell>(std::move(data[src_row][src_col]));
+    trigger_cell->addTarget(default_cells[cell_type]->clone());
+    data[src_row][src_col] = std::move(trigger_cell);
+}
+
+Level::Level(const std::string &map_file_name)
+{
+    map.init(map_file_name);
 }
 
 size_t Level::rows() const
 {
-    return level_rows;
+    return map.rows;
 }
 
 size_t Level::cols() const
 {
-    return level_cols;
+    return map.cols;
+}
+
+CellPtr &Level::getCellAt(coordinate row, coordinate col)
+{
+    return map.data[row][col];
 }
 
 void Level::placeBridge(coordinate row, coordinate col)
 {
-    map[row][col] = std::make_unique<PassableCell>(row, col, palette::Black);
+    map.data[row][col] = std::make_unique<PassableCell>(row, col, palette::Black);
 }
 
 void Level::removeCharge(coordinate row, coordinate col)
 {
-    map[row][col] = std::make_unique<PassableCell>(row, col, color_ground);
+    map.data[row][col] = std::make_unique<PassableCell>(row, col, color_ground);
-}
-
-Map& Level::mapArray()
-{
-    return map;
 }
 
 sf::Color Level::defaultGroundColor()

src/level.h

@@ -2,38 +2,74 @@
 #define LEVEL_H
 
 #include <array>
+#include <map>
+
 #include "cell.h"
 
-const std::string default_file_name = "test_map";
+// Very desirable to create module for default values
-
+const std::string default_map_file_name = "test_map";
-using Row = std::vector<CellPtr>;
-using Map = std::vector<Row>;
 
 /// Abstraction over 2D array to quickly get access to level cells
 class Level
 {
 private:
+    struct Map
+    {
+        using Row = std::vector<CellPtr>;
+        using Matrix = std::vector<Row>;
+
+        enum class SECTION
+        {
+            SIZE,
+            MAP,
+            TELEPORT,
+            TRIGGER,
+            NONE
+        };
+
+        std::map<std::string, SECTION> map_section =
+        {
+            { "size", SECTION::SIZE },
+            { "map", SECTION::MAP },
+            { "teleport", SECTION::TELEPORT },
+            { "trigger", SECTION::TRIGGER },
+            { "", SECTION::NONE }
+        };
+
+        Matrix data;
+        size_t rows, cols;
+        std::array<CellPtr, N_CELLS> default_cells;
+
+        void init(const std::string &map_file_name = default_map_file_name);
+
+        /// Prepare prototypes of default cells
+        void prepareDefaultCells();
+
+        /// Map file section readers
+        void readMapSize(std::istringstream &sstr);
+        void readMapRow(std::istringstream &sstr);
+        void readTeleport(std::istringstream &sstr);
+        void readTrigger(std::istringstream &sstr);
+    };
+
     Map map;
     sf::Color color_ground;
-    size_t level_rows, level_cols;
-    std::array<Cell *, N_CELLS> default_cells;
-
-    void prepareCellInstances();
-    void readMap(std::ifstream &file);
 
 public:
-    Level(const std::string &map_file = default_file_name);
+    Level(const std::string &map_file_name = default_map_file_name);
-    ~Level();
 
+    /// Number of map rows
     size_t rows() const;
+
+    /// Number of map columns
     size_t cols() const;
 
+    /// Get cell at position row, col
+    CellPtr &getCellAt(coordinate row, coordinate col);
+
     /// Place a bridge cell
     void placeBridge(coordinate x, coordinate y);
 
-    /// Get the 2D array of level map
-    Map& mapArray();
-
     /// Replace a charge cell with a ground cell
     void removeCharge(coordinate x, coordinate y);
 

src/sfml-test.pro

@@ -3,7 +3,7 @@ CONFIG += c++17
 CONFIG -= console app_bundle
 CONFIG -= qt
 
-QMAKE_CXXFLAGS = -Wall -Werror -Wextra -Wpedantic -Wconversion -std=c++17 -O2 -g
+QMAKE_CXXFLAGS = -Wall -Werror -Wextra -Wpedantic -Wconversion -std=c++17 -O0 -g
 
 SOURCES += \
     cell.cpp \