Function draw_poly

std/src/console/drawing.rs:277–290

Draws a polygon via `rasops`.

(rasops: &mut R, points: &[PixelsXY])

/// Draws a polygon via `rasops`.
pub fn draw_poly<R>(rasops: &mut R, points: &[PixelsXY]) -> io::Result<()>
where
    R: RasterOps + ?Sized,
{
    if points.len() < 2 {
        return Ok(());
    }

    for i in 1..points.len() {
        rasops.draw_line(points[i - 1], points[i])?;
    }
    rasops.draw_line(*points.last().expect("At least 2 points are present"), points[0])?;
    Ok(())
}

/// Calculates the x-coordinate intersection of a horizontal scanline with a line segment.
///