diff --git a/Cargo.lock b/Cargo.lock
index ca86924..d1d6abd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,3 +1,5 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
 [[package]]
 name = "adler32"
 version = "1.0.3"
diff --git a/Cargo.toml b/Cargo.toml
index ce130ed..34b31fa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,4 +20,4 @@ path = "src/app/game.rs"
 
 [[bin]]
 name = "rusty-editor"
-path = "src/app/editor.rs"
+path = "src/app/editor/main.rs"
diff --git a/assets/fonts/sansation.ttf b/assets/fonts/sansation.ttf
new file mode 100644
index 0000000..d85fbc8
Binary files /dev/null and b/assets/fonts/sansation.ttf differ
diff --git a/assets/levels/level1.lvl b/assets/levels/level1.lvl
index a4e4e0a..e579fd8 100644
Binary files a/assets/levels/level1.lvl and b/assets/levels/level1.lvl differ
diff --git a/src/app/editor.rs b/src/app/editor.rs
deleted file mode 100644
index 0a942ce..0000000
--- a/src/app/editor.rs
+++ /dev/null
@@ -1,103 +0,0 @@
-use clap::{App, crate_version};
-
-use sfml::system::Vector2;
-use sfml::window::{Event, Key};
-use sfml::window::mouse::Button;
-use sfml::graphics::{RectangleShape, RenderTarget, Transformable, Color, Shape};
-
-use rusty::engine::renderer::Renderer;
-use rusty::engine::map::{CollisionTile, Map};
-use rusty::engine::texture::SPRITE_SIZE_I32;
-
-fn main() {
-    let _ = App::new("Rusty Editor")
-        .version(crate_version!())
-        .get_matches();
-
-    let mut renderer = Renderer::new(800, 600, false);
-
-    let mut running = true;
-
-    let mut map = Map::new(50, 50);//;Map::load("./assets/levels/level2.lvl").unwrap();
-
-    loop {
-        let top_panel_size = Vector2::new(renderer.window().size().x as f32, 50.0);
-        let left_panel_size = Vector2::new(100.0, renderer.window().size().y as f32 - top_panel_size.y);
-
-        // Manage the events
-        while let Some(event) = renderer.poll_event() {
-            match event {
-                // Quit the game if window is closed
-                Event::Closed => running = false,
-
-                // Quit the game if escape is pressed
-                Event::KeyPressed {
-                    code: Key::Escape, ..
-                } => running = false,
-
-                // A click on the screen
-                Event::MouseButtonPressed {
-                    button: Button::Left, x, y,
-                } => {
-                    if x as f32 >= left_panel_size.x && y as f32 >= top_panel_size.y {
-                        let x = ((x - left_panel_size.x as i32) / SPRITE_SIZE_I32) as usize;
-                        let y = ((y - top_panel_size.y as i32) / SPRITE_SIZE_I32) as usize;
-
-                        if let Some(tile) = map.collision_tile(y, x) {
-                            if tile.is_empty() {
-                                map.set_tile(y, x, CollisionTile::full());
-                            } else {
-                                map.set_tile(y, x, CollisionTile::empty());
-                            }
-                        }
-                    }
-                },
-
-                _ => (),
-            }
-        }
-
-        // Do the rendering
-        renderer.clear();
-
-        // Show the top panel
-        let mut top_panel = RectangleShape::with_size(top_panel_size);
-        top_panel.set_fill_color(&Color::rgb(255, 0, 0));
-        renderer.window_mut().draw(&top_panel);
-
-        // Show the left panel
-        let mut left_panel = RectangleShape::with_size(left_panel_size);
-        left_panel.set_position((0.0, top_panel_size.y));
-        left_panel.set_fill_color(&Color::rgb(0, 255, 0));
-        renderer.window_mut().draw(&left_panel);
-
-        // Show the map
-        for i in 0 .. map.rows() {
-            for j in 0 .. map.cols() {
-                let tile = map.at(i, j);
-                if tile.graphic.is_visible() {
-                    renderer.translate_and_draw(&tile, (left_panel_size.x, top_panel_size.y));
-                }
-            }
-        }
-
-        // Draw the border of the map
-        let mut border = RectangleShape::new();
-        border.set_size(((
-            map.cols() * SPRITE_SIZE_I32 as usize) as f32,
-            (map.rows() * SPRITE_SIZE_I32 as usize) as f32
-        ));
-        border.set_position((left_panel_size.x, top_panel_size.y));
-        border.set_fill_color(&Color::rgba(0, 0, 0, 0));
-        border.set_outline_color(&Color::rgb(0, 0, 0));
-        border.set_outline_thickness(2.0);
-        renderer.window_mut().draw(&border);
-
-        // Display and manage the frame rate
-        renderer.display();
-
-        if !running {
-            break;
-        }
-    }
-}
diff --git a/src/app/editor/main.rs b/src/app/editor/main.rs
new file mode 100644
index 0000000..84481f4
--- /dev/null
+++ b/src/app/editor/main.rs
@@ -0,0 +1,11 @@
+use clap::{App, crate_version};
+
+use rusty::app::editor::Editor;
+
+fn main() {
+    let _ = App::new("Rusty Editor")
+        .version(crate_version!())
+        .get_matches();
+
+    Editor::new().run();
+}
diff --git a/src/app/editor/mod.rs b/src/app/editor/mod.rs
new file mode 100644
index 0000000..cb7f713
--- /dev/null
+++ b/src/app/editor/mod.rs
@@ -0,0 +1,230 @@
+use sfml::system::Vector2;
+use sfml::window::{Event, Key, mouse::Button as MouseButton};
+use sfml::graphics::{Color, RectangleShape, RenderTarget, Transformable, Shape};
+
+use crate::engine::renderer::Renderer;
+use crate::engine::map::{CollisionTile, Map};
+use crate::engine::texture::SPRITE_SIZE_I32;
+use crate::engine::font::Font;
+use crate::Result;
+
+/// An action caused by a button.
+#[derive(Copy, Clone)]
+pub enum Action {
+    /// Saves the level.
+    Save,
+}
+
+/// A button that can be clicked.
+pub struct Button {
+    /// The label of the button.
+    pub label: String,
+
+    /// The position of the button.
+    pub position: Vector2<f32>,
+
+    /// The size of the button.
+    pub size: Vector2<f32>,
+
+    /// The action of the button.
+    action: Action,
+}
+
+impl Button {
+    /// Creates a new button.
+    pub fn new(label: &str, action: Action, x: f32, y: f32, w: f32, h: f32) -> Button {
+        Button {
+            action,
+            label: label.to_owned(),
+            position: Vector2::new(x, y),
+            size: Vector2::new(w, h),
+        }
+    }
+
+    /// Returns the shape of the button.
+    pub fn shape(&self) -> RectangleShape {
+        let mut shape = RectangleShape::new();
+        shape.set_position(self.position + 0.1 * self.size);
+        shape.set_size(self.size - 0.2 * self.size);
+        shape.set_fill_color(&Color::rgb(255, 255, 255));
+        shape
+    }
+
+    /// Draws the button on the renderer.
+    pub fn render_on(&self, renderer: &mut Renderer) {
+        renderer.window_mut().draw(&self.shape());
+        renderer.draw_text(
+            &self.label,
+            Font::Sansation,
+            self.size.y as u32 / 2,
+            &Color::rgb(0, 0, 0)
+        );
+    }
+
+    /// Returns true if the coordinates fall inside the shape of the button.
+    pub fn contains(&self, x: f32, y: f32) -> bool {
+        let shape = self.shape();
+        x > shape.position().x && x < shape.position().x + shape.size().x &&
+        y > shape.position().y && y < shape.position().y + shape.size().y
+    }
+}
+
+/// Represents a level editor.
+pub struct Editor {
+    /// The renderer used by the editor.
+    renderer: Renderer,
+
+    /// The map being currently edited.
+    map: Map,
+
+    /// Indicates whether the editor is running or not.
+    running: bool,
+
+    /// The size of the left panel.
+    left_panel_size: Vector2<f32>,
+
+    /// The size of the top panel.
+    top_panel_size: Vector2<f32>,
+
+    /// The buttons of the menu bar.
+    menu_bar: Vec<Button>,
+}
+
+impl Editor {
+    /// Creates a new editor.
+    pub fn new() -> Editor {
+        let renderer = Renderer::new(800, 600, false);
+        let menu_bar = vec![
+            Button::new("Save", Action::Save, 0.0, 0.0, 50.0, 50.0),
+        ];
+
+        Editor {
+            map: Map::new(50, 50),
+            running: true,
+            top_panel_size: Vector2::new(renderer.window().size().x as f32, 50.0),
+            left_panel_size: Vector2::new(100.0, renderer.window().size().y as f32 - 50.0),
+            renderer,
+            menu_bar,
+        }
+    }
+
+    /// Runs the main loop of the editor.
+    pub fn run(&mut self) {
+        while self.running {
+            while let Some(event) = self.renderer.poll_event() {
+                self.manage_event(event);
+            }
+
+            self.render();
+        }
+    }
+
+    /// Manages the event occuring on the display.
+    pub fn manage_event(&mut self, event: Event) {
+
+        match event {
+            // Quit the game if window is closed
+            Event::Closed => self.running = false,
+
+            // Quit the game if escape is pressed
+            Event::KeyPressed {
+                code: Key::Escape, ..
+            } => self.running = false,
+
+            // A click on the screen
+            Event::MouseButtonPressed {
+                button: MouseButton::Left, x, y,
+            } => {
+                if x as f32 >= self.left_panel_size.x && y as f32 >= self.top_panel_size.y {
+                    let x = ((x - self.left_panel_size.x as i32) / SPRITE_SIZE_I32) as usize;
+                    let y = ((y - self.top_panel_size.y as i32) / SPRITE_SIZE_I32) as usize;
+
+                    if let Some(tile) = self.map.collision_tile(y, x) {
+                        if tile.is_empty() {
+                            self.map.set_tile(y, x, CollisionTile::full());
+                        } else {
+                            self.map.set_tile(y, x, CollisionTile::empty());
+                        }
+                    }
+                }
+
+                let mut actions = vec![];
+                for button in &self.menu_bar {
+                    if button.contains(x as f32, y as f32) {
+                        actions.push(button.action);
+                    }
+                }
+
+                for action in actions {
+                    if let Err(e) = self.apply_action(action) {
+                        eprintln!("warning: {}", e);
+                    }
+                }
+            },
+
+            _ => (),
+        }
+
+    }
+
+    /// Performs the rendering on the screen.
+    pub fn render(&mut self) {
+
+        self.renderer.clear();
+
+        // Show the top panel
+        let mut top_panel = RectangleShape::with_size(self.top_panel_size);
+        top_panel.set_fill_color(&Color::rgb(255, 0, 0));
+        self.renderer.window_mut().draw(&top_panel);
+
+        for button in &self.menu_bar {
+            button.render_on(&mut self.renderer);
+        }
+
+        // Show the left panel
+        let mut left_panel = RectangleShape::with_size(self.left_panel_size);
+        left_panel.set_position((0.0, self.top_panel_size.y));
+        left_panel.set_fill_color(&Color::rgb(0, 255, 0));
+        self.renderer.window_mut().draw(&left_panel);
+
+        // Show the map
+        for i in 0 .. self.map.rows() {
+            for j in 0 .. self.map.cols() {
+                let tile = self.map.at(i, j);
+                if tile.graphic.is_visible() {
+                    self.renderer.translate_and_draw(
+                        &tile,
+                        (self.left_panel_size.x, self.top_panel_size.y)
+                    );
+                }
+            }
+        }
+
+        // Draw the border of the map
+        let mut border = RectangleShape::new();
+        border.set_size(((
+            self.map.cols() * SPRITE_SIZE_I32 as usize) as f32,
+            (self.map.rows() * SPRITE_SIZE_I32 as usize) as f32
+        ));
+        border.set_position((self.left_panel_size.x, self.top_panel_size.y));
+        border.set_fill_color(&Color::rgba(0, 0, 0, 0));
+        border.set_outline_color(&Color::rgb(0, 0, 0));
+        border.set_outline_thickness(2.0);
+        self.renderer.window_mut().draw(&border);
+
+        // Display and manage the frame rate
+        self.renderer.display();
+    }
+
+    /// Saves the level.
+    pub fn export(&self) -> Result<()> {
+        self.map.save("level.lvl")
+    }
+
+    /// Applies the corresponding action.
+    pub fn apply_action(&mut self, action: Action) -> Result<()> {
+        match action {
+            Action::Save => self.export()
+        }
+    }
+}
diff --git a/src/app/mod.rs b/src/app/mod.rs
new file mode 100644
index 0000000..1312550
--- /dev/null
+++ b/src/app/mod.rs
@@ -0,0 +1,2 @@
+/// This module contains everything related to the level editor.
+pub mod editor;
diff --git a/src/engine/font/mod.rs b/src/engine/font/mod.rs
new file mode 100644
index 0000000..b3b4bdf
--- /dev/null
+++ b/src/engine/font/mod.rs
@@ -0,0 +1,73 @@
+use sfml::graphics::Font as SfFont;
+
+macro_rules! make_fonts {
+    ( $(
+        $enum_name: ident,
+        $font_name: ident,
+        $function_name: ident,
+        $font_path: tt,)
+    *) => {
+
+        /// Describes all the fonts that will be used in this game.
+        #[derive(Copy, Clone)]
+        pub enum Font {
+            $(
+                /// A font.
+                $enum_name,
+            )*
+        }
+
+        /// A struct that holds all the fonts.
+        pub struct FontManager {
+            $(
+                /// A font.
+                $font_name: SfFont,
+            )*
+        }
+
+        impl FontManager {
+            /// Creates a new font manager and initializes all fonts.
+            pub fn new() -> FontManager {
+                FontManager {
+                    $(
+                        $font_name: FontManager::$function_name(),
+                    )*
+                }
+            }
+
+            $(
+                /// Creates the font.
+                fn $function_name() -> SfFont {
+                    SfFont::from_file("assets/fonts/sansation.ttf").unwrap()
+                    // let bytes = include_bytes!($font_path).to_vec();
+                    // FontManager::make_font_from_bytes(bytes)
+                }
+            )*
+
+            /// Returns the real font from the font id.
+            pub fn get(&self, id: Font) -> &SfFont {
+                match id {
+                    $(
+                        Font::$enum_name => &self.$font_name,
+                    )*
+                }
+            }
+
+        }
+    }
+}
+
+make_fonts!(
+    Sansation,
+    sansation,
+    make_sansation_font,
+    "../../../assets/fonts/sansation.ttf",
+);
+
+impl FontManager {
+    /// Creates a fonts from an array of bytes.
+    fn _make_font_from_bytes(bytes: Vec<u8>) -> SfFont {
+        SfFont::from_memory(&bytes)
+            .expect("Failed to create font")
+    }
+}
diff --git a/src/engine/mod.rs b/src/engine/mod.rs
index 7b0b8fa..b60be55 100644
--- a/src/engine/mod.rs
+++ b/src/engine/mod.rs
@@ -10,6 +10,9 @@ pub mod controls;
 /// This module helps us dealing with textures.
 pub mod texture;
 
+/// This module helps us dealing with fonts.
+pub mod font;
+
 /// This module contains the math tools that will be used.
 pub mod math;
 
diff --git a/src/engine/renderer/mod.rs b/src/engine/renderer/mod.rs
index 71c1696..b4d6246 100644
--- a/src/engine/renderer/mod.rs
+++ b/src/engine/renderer/mod.rs
@@ -1,6 +1,6 @@
 use std::time::Instant;
 
-use sfml::graphics::{Color, IntRect, RenderTarget, RenderWindow, Sprite, View};
+use sfml::graphics::{Color, IntRect, RenderTarget, RenderWindow, Sprite, View, Text};
 
 use sfml::window::{Event, Style};
 
@@ -8,6 +8,7 @@ use sfml::system::Vector2;
 
 use crate::engine::scene::Scene;
 use crate::engine::texture::{Texture, TextureManager};
+use crate::engine::font::{Font, FontManager};
 
 /// Our custom drawable trait.
 pub trait Drawable {
@@ -29,6 +30,9 @@ pub struct Renderer {
     /// The texture manager needed by the renderer.
     texture_manager: TextureManager,
 
+    /// The font manager needed by the renderer.
+    font_manager: FontManager,
+
     /// The global timer of the renderer.
     started: Instant,
 }
@@ -52,6 +56,7 @@ impl Renderer {
         Renderer {
             window,
             texture_manager: TextureManager::new(),
+            font_manager: FontManager::new(),
             started: Instant::now(),
         }
     }
@@ -132,4 +137,11 @@ impl Renderer {
     pub fn window_mut(&mut self) -> &mut RenderWindow {
         &mut self.window
     }
+
+    /// Draws text on the screen.
+    pub fn draw_text(&mut self, text: &str, font: Font, size: u32, color: &Color) {
+        let mut text = Text::new(text, self.font_manager.get(font), size);
+        text.set_fill_color(color);
+        self.window.draw(&text);
+    }
 }
diff --git a/src/lib.rs b/src/lib.rs
index 024ac9c..498752c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -7,6 +7,9 @@ use std::{io, fmt, result};
 /// This module contains all the tools needed for the game.
 pub mod engine;
 
+/// This module contains all the applications of the game.
+pub mod app;
+
 /// This is the error type of this library.
 #[derive(Debug)]
 pub enum Error {