diff --git a/src/GameMap.cpp b/src/GameMap.cpp
index d080d9b..5de97fa 100644
--- a/src/GameMap.cpp
+++ b/src/GameMap.cpp
@@ -1,5 +1,91 @@
 #include "GameMap.hpp"
 
+SDL_Point operator+(SDL_Point left, SDL_Point right)
+{
+    return {left.x + right.x, left.y + right.y};
+}
+
+SDL_Point operator-(SDL_Point left, SDL_Point right)
+{
+    return {left.x - right.x, left.y - right.y};
+}
+
+SDL_Point operator*(SDL_Point left, SDL_Point right)
+{
+    return {left.x * right.x, left.y * right.y};
+}
+
+SDL_Point operator/(SDL_Point left, SDL_Point right)
+{
+    return {(left.x / right.x), (left.x / right.y)};
+}
+
+SDL_Point operator*(int left, SDL_Point right)
+{
+    return {left * right.x, left * right.y};
+}
+
+SDL_Point operator*(SDL_Point left, int right)
+{
+    return right * left;
+}
+
+SDL_Point operator/(SDL_Point left, int right)
+{
+    return {left.x / right, left.y / right};
+}
+
+int operator!(SDL_Point left)
+{
+    int length = (int) std::sqrt(left.x * left.x + left.y * left.y);
+    return length;
+}
+
+Point operator+(Point left, Point right)
+{
+    return Point(left.x + right.x, left.y + right.y);
+}
+
+Point operator-(Point left, Point right)
+{
+    return Point(left.x - right.x, left.y - right.y);
+}
+
+Point operator*(Point left, Point right)
+{
+    return Point(left.x * right.x, left.y * right.y);
+}
+
+Point operator/(Point left, Point right)
+{
+    return Point(left.x / right.x, left.y / right.y);
+}
+
+Point operator*(double left, Point right)
+{
+    return Point(left * right.x, left * right.y);
+}
+
+Point operator*(Point left, double right)
+{
+    return Point(left.x * right, left.y * right);
+}
+
+Point operator/(double left, Point right)
+{
+    return Point(left * right.x, left * right.y);
+}
+
+Point operator/(Point left, double right)
+{
+    return Point(left.x * right, left.y * right);
+}
+
+double operator!(Point left)
+{
+    return std::sqrt(left.x * left.x + left.y * left.y);
+}
+
 bool operator==(Field left, Field right)
 {
     return left.x == right.x && left.y == right.y;
@@ -32,9 +118,9 @@ Field operator/(Field left, Field right)
 
 Field cubic_round(double x, double y, double z)
 {
-    int8_t round_x = (int8_t) std::round(x);
-    int8_t round_y = (int8_t) std::round(y);
-    int8_t round_z = (int8_t) std::round(z);
+    Sint8 round_x = (Sint8) std::round(x);
+    Sint8 round_y = (Sint8) std::round(y);
+    Sint8 round_z = (Sint8) std::round(z);
     double x_err = std::abs(round_x - x);
     double y_err = std::abs(round_y - y);
     double z_err = std::abs(round_z - z);
@@ -103,8 +189,8 @@ std::vector<Point> field_to_polygon(const Field field, const Layout layout)
     return corners;
 }
 
-HexagonGrid::HexagonGrid(Sint16 grid_radius, Layout layout, SDL_Color color)
-        : Grid(layout, color)
+HexagonGrid::HexagonGrid(Sint16 grid_radius, Layout layout)
+        : Grid(layout)
 {
     // first lower half, then upper half
     for (Sint16 x = -grid_radius; x <= grid_radius; x++)
@@ -114,27 +200,95 @@ HexagonGrid::HexagonGrid(Sint16 grid_radius, Layout layout, SDL_Color color)
         for (Sint16 y = y_l; y <= y_u; y++)
         {
             Sint16 z = -x - y;
-            this->fields.insert({x, y, z});
+            Field new_field = {x, y, z};
+            FieldMeta *meta = new FieldMeta(nullptr);
+            this->fields.insert(new_field);
+            std::pair<Field, FieldMeta *> field_pair(new_field, meta);
+            this->fields_meta.insert(field_pair);
         }
     }
 }
 
 bool HexagonGrid::render(SDL_Renderer *renderer)
 {
+    Field some_field = {0, 0, 0};
+    std::vector<Point> polygon = field_to_polygon(some_field, this->layout);
+    Point center = field_to_point(some_field, this->layout);
+    assert(polygon.size() > 5);
+    Sint16 vx[6];
+    Sint16 vy[6];
+    for (uint8_t i = 0; i < 6; i++)
+    {
+        vx[i] = (Sint16) (polygon[i].x - center.x);
+        vy[i] = (Sint16) (polygon[i].y - center.y);
+    }
     for (const Field &elem : this->fields)
     {
-        std::vector<Point> polygon = field_to_polygon(elem, this->layout);
-        assert(polygon.size() > 5);
-        Sint16 vx[6];
-        Sint16 vy[6];
+        center = field_to_point(elem, this->layout);
+        Sint16 x[6];
+        Sint16 y[6];
         for (uint8_t i = 0; i < 6; i++)
         {
-            vx[i] = (Sint16) polygon[i].x;
-            vy[i] = (Sint16) polygon[i].y;
+            x[i] = vx[i] + (Sint16) center.x;
+            y[i] = vy[i] + (Sint16) center.y;
+        }
+        polygonRGBA(renderer, x, y, 6, 0xff, 0xff, 0xff, 0xff);
+        if (elem == this->marker)
+        {
+            filledPolygonRGBA(renderer, x, y, 6, 0xff, 0x0, 0x0, 0xff);
         }
-        const Sint16 x[6] = {vx[0], vx[1], vx[2], vx[3], vx[4], vx[5]};
-        const Sint16 y[6] = {vy[0], vy[1], vy[2], vy[3], vy[4], vy[5]};
-        aapolygonRGBA(renderer, x, y, 6, this->color.r, this->color.g, this->color.b, this->color.a);
     }
     return true;
 }
+
+void Grid::move(SDL_Point move)
+{
+    this->set_origin(this->layout.origin + move);
+}
+
+void Grid::handle_event(SDL_Event *event)
+{
+
+    if (event->type == SDL_MOUSEWHEEL)
+    {
+        SDL_Point mouse = {0, 0};
+        SDL_GetMouseState(&mouse.x, &mouse.y);
+        int scroll = event->wheel.y;
+        Uint16 old_size = this->layout.size;
+        SDL_Point old_origin = this->layout.origin;
+
+        if (old_size + scroll < 10)
+        {
+            this->layout.size = 10;
+        }
+        else if (old_size + scroll > 100)
+        {
+            this->layout.size = 100;
+        }
+        else
+        {
+            this->layout.size += scroll;
+            this->set_origin(old_origin + (10 * scroll * (old_origin - mouse) / !(old_origin - mouse)));
+        }
+    }
+    if (event->type == SDL_MOUSEMOTION)
+    {
+        this->update_marker();
+    }
+}
+
+void Grid::set_origin(SDL_Point dm)
+{
+    this->layout.origin = dm;
+    this->update_marker();
+}
+
+void Grid::update_marker()
+{
+    SDL_Point m;
+    SDL_GetMouseState(&(m.x), &(m.y));
+    Point p = {0.0, 0.0};
+    p.x = m.x;
+    p.y = m.y;
+    this->marker = point_to_field(p, this->layout);
+}
diff --git a/src/GameMap.hpp b/src/GameMap.hpp
index 06bd369..9050b6a 100644
--- a/src/GameMap.hpp
+++ b/src/GameMap.hpp
@@ -1,11 +1,32 @@
+#include <iostream>
+#include <stdexcept>
 #include <SDL2/SDL.h>
 #include <SDL2/SDL2_gfxPrimitives.h>
 #include <cmath>
 #include <vector>
 #include <assert.h>
 #include <unordered_set>
+#include <unordered_map>
 #include "Player.hpp"
 
+SDL_Point operator+(SDL_Point left, SDL_Point right);
+
+SDL_Point operator-(SDL_Point left, SDL_Point right);
+
+SDL_Point operator*(SDL_Point left, SDL_Point right);
+
+SDL_Point operator/(SDL_Point left, SDL_Point right);
+
+SDL_Point operator/(SDL_Point left, SDL_Point right);
+
+SDL_Point operator*(int left, SDL_Point right);
+
+SDL_Point operator*(SDL_Point left, int right);
+
+SDL_Point operator/(SDL_Point left, int right);
+
+int operator!(SDL_Point left);
+
 #ifndef Point
 
 struct Point
@@ -17,6 +38,24 @@ struct Point
     { }
 };
 
+Point operator+(Point left, Point right);
+
+Point operator-(Point left, Point right);
+
+Point operator*(Point left, Point right);
+
+Point operator/(Point left, Point right);
+
+Point operator*(double left, Point right);
+
+Point operator*(Point left, double right);
+
+Point operator/(double left, Point right);
+
+Point operator/(Point left, double right);
+
+double operator!(Point left);
+
 #endif
 
 #ifndef Orientation
@@ -50,10 +89,10 @@ const Orientation flat_orientation = Orientation(3.0 / 2.0, 0.0, sqrt(3.0) / 2.0
 struct Layout
 {
     const Orientation orientation;
-    const double size;
-    const SDL_Point origin;
+    Uint16 size;
+    SDL_Point origin;
 
-    Layout(Orientation orientation_, double size_, SDL_Point origin_)
+    Layout(Orientation orientation_, Uint16 size_, SDL_Point origin_)
             : orientation(orientation_), size(size_), origin(origin_)
     { }
 };
@@ -64,7 +103,7 @@ struct Layout
 
 struct Field
 {
-    const Sint16 x, y, z;
+    Sint16 x, y, z;
 
     Field(Sint16 x_, Sint16 y_, Sint16 z_) : x(x_), y(y_), z(z_)
     {
@@ -116,25 +155,59 @@ Point field_to_point(const Field f, const Layout layout);
 
 Field point_to_field(Point point, const Layout layout);
 
-Point field_corner_offset(Uint8 corner, const Layout layout);
+Point field_corner_offset(int corner, const Layout layout);
 
 std::vector<Point> field_to_polygon(const Field field, const Layout layout);
 
+#ifndef FieldMeta
+
+class FieldMeta
+{
+private:
+    Player *owner;
+public:
+    FieldMeta(Player *owner_) : owner(owner_)
+    { }
+//    Player *get_owner();
+//    bool set_owner(Player *owner);
+};
+
+#endif
+
 #ifndef Grid
 
 class Grid
 {
 protected:
     std::unordered_set<Field> fields;
-    SDL_Color color;
+    std::unordered_map<Field, FieldMeta *> fields_meta;
     Layout layout;
+    Field marker;
 public:
-    Grid(Layout layout_, SDL_Color color_) : layout(layout_), color(color_)
+    Grid(Layout layout_) : layout(layout_), marker(0, 0, 0)
     {
         this->fields = std::unordered_set<Field>();
+        this->fields_meta = std::unordered_map<Field, FieldMeta *>();
     };
 
+    ~Grid()
+    {
+        for (const Field &elem : this->fields)
+        {
+            delete this->fields_meta.at(elem);
+        }
+    }
+
+    void set_origin(SDL_Point origin);
+
+    void move(SDL_Point move);
+
+    void update_marker();
+
     virtual bool render(SDL_Renderer *renderer) = 0;
+
+    void handle_event(SDL_Event *event);
+
 };
 
 #endif
@@ -143,8 +216,10 @@ public:
 
 class HexagonGrid : public Grid
 {
+private:
+    Sint16 radius;
 public:
-    HexagonGrid(Sint16 grid_radius, Layout layout, SDL_Color color);
+    HexagonGrid(Sint16 grid_radius, Layout layout);
 
     bool render(SDL_Renderer *renderer);
 };
diff --git a/src/Main.cpp b/src/Main.cpp
index 2934d8d..74eaccc 100644
--- a/src/Main.cpp
+++ b/src/Main.cpp
@@ -1,4 +1,5 @@
 #include <string>
+#include <SDL_video.h>
 #include "Main.hpp"
 
 
@@ -9,9 +10,9 @@ void logSDLError(std::ostream &os, const std::string &msg)
 
 SDL_Window *init_window()
 {
+
     SDL_Window *window = SDL_CreateWindow("Hello World!", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
-                                          SCREEN_WIDTH,
-                                          SCREEN_HEIGHT, SDL_WINDOW_OPENGL);
+                                          SCREEN_WIDTH, SCREEN_HEIGTH, SDL_WINDOW_OPENGL);
     if (window == NULL)
     {
         logSDLError(std::cout, "SDL_CreateWindow");
@@ -32,50 +33,120 @@ SDL_Renderer *init_renderer(SDL_Window *window)
     return renderer;
 }
 
-SDL_Surface *init_surface(int width, int height)
+void Timer::start_timer()
 {
-
-    //SDL_Surface *surface = SDL_CreateRGBSurface(0, width, height, 32, rmask, gmask, bmask, amask);
-    SDL_Surface *surface = SDL_CreateRGBSurface(0, width, height, 32, 0, 0, 0, 0);
-    if (surface == NULL)
-    {
-        logSDLError(std::cout, "SDL_CreateSurface");
-    }
-    return surface;
+    this->timer_started = SDL_GetTicks();
 }
 
-SDL_Texture *init_texture(SDL_Renderer *renderer, SDL_Surface *surface)
+Uint32 Timer::get_timer()
 {
-    SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer, surface);
-    if (texture == NULL)
+    Uint32 ticks_passed = SDL_GetTicks() - this->timer_started;
+    return ticks_passed;
+}
+
+Uint32 Timer::reset_timer()
+{
+    Uint32 ticks_passed = this->get_timer();
+    this->timer_started = SDL_GetTicks();
+    return ticks_passed;
+}
+
+void Game::toggle_fullscreen()
+{
+    SDL_DisplayMode dm;
+    SDL_GetCurrentDisplayMode(SDL_GetWindowDisplayIndex(this->window), &dm);
+    if (!this->full_screen)
     {
-        logSDLError(std::cout, "SDL_CreateTexture");
+        this->full_screen = true;
+        SDL_SetWindowSize(this->window, dm.w, dm.h);
+        SDL_SetWindowFullscreen(this->window, SDL_WINDOW_FULLSCREEN);
+    }
+    else
+    {
+        this->full_screen = false;
+        SDL_SetWindowFullscreen(this->window, 0);
+        SDL_SetWindowSize(this->window, SCREEN_WIDTH, SCREEN_HEIGTH);
+        SDL_SetWindowPosition(this->window, dm.w / 4, dm.h / 4);
+    }
+}
+
+void Game::handle_event(SDL_Event *event)
+{
+    if (event->type == SDL_KEYDOWN)
+    {
+        SDL_Keycode key = event->key.keysym.sym;
+        if (key == SDLK_w)
+            this->move[0] = true;
+        if (key == SDLK_a)
+            this->move[1] = true;
+        if (key == SDLK_s)
+            this->move[2] = true;
+        if (key == SDLK_d)
+            this->move[3] = true;
+        if (key == SDLK_f)
+        {
+            toggle_fullscreen();
+        }
+        if (key == SDLK_ESCAPE)
+        {
+            this->quit = true;
+        }
+    }
+    if (event->type == SDL_KEYUP)
+    {
+        SDL_Keycode key = event->key.keysym.sym;
+        if (key == SDLK_w)
+            this->move[0] = false;
+        if (key == SDLK_a)
+            this->move[1] = false;
+        if (key == SDLK_s)
+            this->move[2] = false;
+        if (key == SDLK_d)
+            this->move[3] = false;
     }
-    return texture;
 }
 
 int Game::game_loop()
 {
-    bool quit = false;
-    while (!quit)
+    Timer *frame_timer = new Timer();
+    frame_timer->start_timer();
+    double fps;
+    Uint32 frame_counter = 0;
+    while (!this->quit)
     {
+        if (frame_timer->get_timer() > 1000.0)
+        {
+            fps = frame_counter / (frame_timer->reset_timer() / 1000.0);
+            frame_counter = 0;
+            std::cout << fps << std::endl;
+        }
         SDL_Event event;
         while (SDL_PollEvent(&event))
         {
+            if (event.type == SDL_KEYDOWN || event.type == SDL_KEYUP)
+            {
+                this->handle_event(&event);
+            }
             if (event.type == SDL_QUIT)
             {
                 quit = true;
-            } else if (event.type == SDL_MOUSEBUTTONDOWN)
+                break;
+            }
+            if (event.type == SDL_MOUSEMOTION || event.type == SDL_MOUSEWHEEL)
             {
-                quit = true;
+                grid->handle_event(&event);
             }
         }
+        SDL_Point move_by = {(this->move[1] - this->move[3]) * 10, (this->move[0] - this->move[2]) * 10};
+        this->grid->move(move_by);
         SDL_SetRenderDrawColor(renderer, 0x00, 0x00, 0x00, 0x00);
         SDL_RenderClear(renderer);
         SDL_SetRenderDrawColor(renderer, 0xff, 0xff, 0xff, 0xff);
         this->grid->render(renderer);
         SDL_RenderPresent(renderer);
+        frame_counter++;
     }
+    delete frame_timer;
     return 0;
 }
 
@@ -104,6 +175,9 @@ int main(int, char **)
     Game *game = new Game(window, renderer);
     int exit_status = game->game_loop();
     delete game;
+    SDL_DestroyRenderer(renderer);
+    SDL_DestroyWindow(window);
+    SDL_Quit();
     return exit_status;
 }
 
diff --git a/src/Main.hpp b/src/Main.hpp
index 2dfae4a..36ba32b 100644
--- a/src/Main.hpp
+++ b/src/Main.hpp
@@ -4,12 +4,9 @@
 #include "GameMap.hpp"
 
 #ifndef DEFAULTS
+const Sint16 GRID_SIZE = 20;
 const int SCREEN_WIDTH = 800;
-const int SCREEN_HEIGHT = 800;
-const SDL_Point CENTER = {SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2};
-const Layout LAYOUT = Layout(pointy_orientation, 20.0, CENTER);
-const Sint16 GRID_SIZE = 6;
-const SDL_Color COLOR = {0, 255, 255, 255};
+const int SCREEN_HEIGTH = 600;
 #endif
 
 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
@@ -24,25 +21,54 @@ Uint32 bmask = 0x00ff0000;
 Uint32 amask = 0xff000000;
 #endif
 
+#ifndef Timer
 
-//template <class T>
+class Timer
+{
+private:
+    Uint32 timer_started;
+public:
+    void start_timer();
+
+    Uint32 get_timer();
+
+    Uint32 reset_timer();
+};
+
+#endif
+
+#ifndef  Game
 class Game
 {
 private:
     SDL_Window *window;
     SDL_Renderer *renderer;
     HexagonGrid *grid;
+    bool move[4];
+    bool full_screen;
+    bool quit;
 public:
     Game(SDL_Window *window_, SDL_Renderer *renderer_)
             : window(window_), renderer(renderer_)
     {
-        this->grid = new HexagonGrid(GRID_SIZE, LAYOUT, COLOR);
+        Layout layout = {pointy_orientation, GRID_SIZE, {SCREEN_WIDTH / 2, SCREEN_HEIGTH / 2}};
+        this->grid = new HexagonGrid(GRID_SIZE, layout);
+        for (int i = 0; i < 4; i++)
+        {
+            this->move[i] = false;
+        }
+        this->quit = false;
     }
 
+    void toggle_fullscreen();
+
     ~Game()
     {
         delete this->grid;
     }
 
+    void handle_event(SDL_Event *event);
     int game_loop();
 };
+
+#endif
diff --git a/src/Player.hpp b/src/Player.hpp
index e69de29..7f2ba8e 100644
--- a/src/Player.hpp
+++ b/src/Player.hpp
@@ -0,0 +1,9 @@
+#ifndef Player
+
+struct Player
+{
+    const SDL_Color color;
+    const std::string name;
+};
+
+#endif
\ No newline at end of file