Added clap options to choose the renderer size

Cargo.toml

@@ -4,6 +4,7 @@ version = "0.1.0"
 authors = ["Thomas Forgione <thomas@forgione.fr>"]
 
 [dependencies]
+clap = "2.32.0"
 sfml = { git = "https://gitea.tforgione.fr/free-rusty-maker/rust-sfml" }
 
 [build-dependencies]

src/app/game.rs

@@ -1,8 +1,15 @@
+#[macro_use]
+extern crate clap;
 extern crate sfml;
 extern crate rusty;
 
 use std::time::Instant;
 
+use clap::{
+    Arg,
+    App,
+};
+
 use sfml::window::{
     Event,
     Key,
@@ -13,9 +20,45 @@ use rusty::engine::character::Character;
 use rusty::engine::controls::Controls;
 use rusty::engine::renderer::Renderer;
 
+fn parse_resolution(res: &str) -> Result<(u32, u32), String> {
+    let split = res.split('x').collect::<Vec<_>>();
+
+    if split.len() != 2 {
+        return Err("Resolution should be WIDTHxHEIGHT".to_owned());
+    }
+
+    let width = match split[0].parse::<u32>() {
+        Ok(w) => w,
+        Err(_) => return Err("WIDTH must be an integer".to_owned()),
+    };
+
+    let height = match split[1].parse::<u32>() {
+        Ok(h) => h,
+        Err(_) => return Err("HEIGHT must be an integer".to_owned()),
+    };
+
+    Ok((width, height))
+}
+
 fn main() {
-    let game_width = 800;
-    let game_height = 450;
+
+    let matches = App::new("Rusty Maker")
+        .version(crate_version!())
+        .arg(Arg::with_name("resolution")
+             .short("r")
+             .long("resolution")
+             .value_name("WIDTHxHEIGHT")
+             .takes_value(true)
+             .default_value("800x450")
+             .validator(|x| parse_resolution(&x).map(|_| ())))
+        .arg(Arg::with_name("fullscreen")
+             .short("f")
+             .long("fullscreen")
+             .takes_value(false))
+        .get_matches();
+
+    let resolution = parse_resolution(matches.value_of("resolution").unwrap()).unwrap();
+    let fullscreen = matches.is_present("fullscreen");
 
     let mut character = Character::with_controls(Controls::new());
     character.set_position((10.0, 0.0));
@@ -23,7 +66,7 @@ fn main() {
     let mut scene = Scene::new();
     scene.add(character);
 
-    let mut renderer = Renderer::new(game_width, game_height);
+    let mut renderer = Renderer::new(resolution.0, resolution.1, fullscreen);
 
     let mut after_loop = Instant::now();
     let mut running = true;

src/engine/renderer/mod.rs

@@ -50,12 +50,12 @@ pub struct Renderer {
 
 impl Renderer {
     /// Creates a new renderer.
-    pub fn new(width: u32, height: u32) -> Renderer {
+    pub fn new(width: u32, height: u32, fullscreen: bool) -> Renderer {
 
         let mut window = RenderWindow::new(
             (width, height),
             "Free Rusty Maker",
-            Style::CLOSE,
+            if fullscreen { Style::FULLSCREEN } else { Style::CLOSE },
             &Default::default(),
         );
         window.set_vertical_sync_enabled(true);