fix(ui): black lines between blocks

src/main.rs

@@ -23,6 +23,7 @@ use sdl2::pixels::Color;
 use sdl2::event::Event;
 use sdl2::keyboard::Keycode;
 use sdl2::rect::Point;
+use sdl2::rect::Rect;
 
 use machine::HEIGHT;
 use machine::WIDTH;
@@ -34,8 +35,6 @@ use std::env;
 
 fn main() {
     let name_file = &env::args().collect::<Vec<String>>()[1];
-    //read_file(Path::new("15PUZZLE"));
-    //return;
     let mut t: Machine = Machine::new();
     t.init();
     match t.load_rom(Path::new(name_file)) {
@@ -48,8 +47,7 @@ fn main() {
 
     let sdl_context = sdl2::init().unwrap();
     let video_subsystem = sdl_context.video().unwrap();
-    let window = video_subsystem.window("Chip8 Emulator", WIDTH as u32, HEIGHT as u32)
-    //let window = video_subsystem.window("Chip8 Emulator", 100 + 10 * WIDTH as u32, 10 * HEIGHT as u32)
+    let window = video_subsystem.window("Chip8 Emulator", 200 + 11 * WIDTH as u32, 11 * HEIGHT as u32)
         .position_centered()
         .build()
         .unwrap();
@@ -58,6 +56,10 @@ fn main() {
     canvas.set_draw_color(Color::RGB(0, 0, 0));
     canvas.clear();
     canvas.present();
+    canvas.set_draw_color(Color::RGB(255, 255, 255));
+    canvas.draw_line(Point::new(11 * WIDTH as i32, 0),
+                     Point::new(11 * WIDTH as i32, 11 * HEIGHT as i32)).unwrap();
+    canvas.present();
 
     let mut event_pump = sdl_context.event_pump().unwrap();
 
@@ -66,12 +68,14 @@ fn main() {
         
         for i in 0..t.display_buffer.len() {
             for j in 0..t.display_buffer[i].len() {
+                let ti = i * 10 + 10;
+                let tj = j * 10 + 10;
                 if t.display_buffer[i][j] == 1 {
                     canvas.set_draw_color(Color::RGB(255, 255, 255));
-                    canvas.draw_point(Point::new(j as i32, i as i32)).unwrap();
+                    canvas.fill_rect(Rect::new(tj as i32, ti as i32, 10, 10)).unwrap();
                 } else {
                     canvas.set_draw_color(Color::RGB(0, 0, 0));
-                    canvas.draw_point(Point::new(j as i32, i as i32)).unwrap();
+                    canvas.fill_rect(Rect::new(tj as i32, ti as i32, 10, 10)).unwrap();
                 }
             }
         }