Adding support for polylines, wind and cog

src/main.rs

@@ -21,6 +21,8 @@ fn main() -> Result<(), Box<dyn Error>> {
     let mut screen = forms::Screen::new(200, 200);
     let c = forms::load_compass_rose();
     let b = forms::load_boat();
+    let cog = forms::load_cog();
+    let wind = forms::load_wind();
     
 /*
     let mut img = RgbImage::new(480, 320);
@@ -33,13 +35,16 @@ fn main() -> Result<(), Box<dyn Error>> {
     let mut e = ilidisplay::IliDisplay::init()?;
     e.init_chip();
     e.turn_on();
-    for i in 0..100 {
+    for i in 0..10 {
       let rad = (i as f32) * 2.0*PI / 100.0;
       screen.clear();
+      screen.render(&cog, -rad*2.0, 500, 500);
+      screen.render(&wind, rad*2.0, 500, 500);
       screen.render(&c, rad, 500, 500);
       screen.render(&b, 0.0, 500, 500);
       e.put_image(&(screen.image), ((240-100), (160-100)));
     }
+    screen.save();
 
     // draw_filled_rect_mut(&mut img, Rect::at(0,0).of_size(480, 320), Rgb([0, 0, 0]));