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extern mod term;
use core::io::ReaderUtil;
fn term_app (body: &fn (w: &mut term::Writer)) {
let mut writer = term::Writer(true);
do term::ios::preserve {
writer.alternate_screen(true);
body(&mut writer);
}
}
fn draw_map (w: &term::Writer, rows: uint, cols: uint) {
for uint::range(0, rows) |i| {
w.move(0, i);
io::print(str::repeat(".", cols));
}
}
fn draw_character (w: &term::Writer, x: uint, y: uint) {
w.move(x, y);
io::print("@");
w.move(x, y);
}
fn draw_ground (w: &term::Writer, x: uint, y: uint) {
w.move(x, y);
io::print(".");
}
fn main () {
let (cols, rows) = term::size();
do term_app |w| {
term::cbreak();
term::echo(false);
w.clear();
draw_map(w, rows, cols);
let mut (x, y) = (0u, 0u);
let mut cursor = true;
loop {
draw_character(w, x, y);
match io::stdin().read_char() {
'q' => { break }
'h' if x > 0 => { draw_ground(w, x, y); x -= 1 }
'j' if y < rows - 1 => { draw_ground(w, x, y); y += 1 }
'k' if y > 0 => { draw_ground(w, x, y); y -= 1 }
'l' if x < cols - 1 => { draw_ground(w, x, y); x += 1 }
' ' => { w.cursor(cursor); cursor = !cursor }
_ => { }
}
}
}
}
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