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BufWriter, Write}; use std::net::TcpStream; fn main() -> Result<(), Box> { let decoder = Decoder::new(File::open("nopslide.png")?); let mut reader = decoder.read_info()?; - let mut buf = vec![0; reader.output_buffer_size()]; - let info = reader.next_frame(&mut buf)?; + let mut pixelbuf = vec![0; reader.output_buffer_size()]; + let info = reader.next_frame(&mut pixelbuf)?; - let mut stream = BufWriter::new(TcpStream::connect("151.217.15.79:1337")?); + let stream = TcpStream::connect("151.217.15.79:1337")?; + let mut reader = BufReader::new(stream.try_clone()?); + let mut writer = BufWriter::with_capacity(65536, stream); + write!(writer, "SIZE\n")?; + writer.flush()?; + let mut buf = String::new(); + reader.read_line(&mut buf)?; + let size = sscanf!(&buf[..buf.len() - 1], "SIZE {u32} {u32}")?; + + let mut rng = thread_rng(); loop { + let pos = ( + rng.gen_range(0..size.0 - info.width), + rng.gen_range(0..size.1 - info.height), + ); for x in 0..info.width { for y in 0..info.height { match info.color_type { ColorType::GrayscaleAlpha => { let offset = ((x + y * info.width) * 2) as usize; - if buf[offset + 1] != 0 { + if pixelbuf[offset + 1] != 0 { write!( - stream, + writer, "PX {} {} {:02x}{:02x}{:02x}\n", - x + 1920 - info.width, - y + 900 - info.height, - buf[offset], - buf[offset], - buf[offset] + x + pos.0, + y + pos.1, + pixelbuf[offset], + pixelbuf[offset], + pixelbuf[offset] )?; } }