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Finish snake movement

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This commit is contained in:
Yash Karandikar 2022-04-30 10:50:48 -05:00
parent 4473b0330b
commit ec73756b2c
Signed by: karx
GPG key ID: A794DA2529474BA5
1 changed files with 18 additions and 16 deletions
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34
src/main.rs
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@ -28,14 +28,27 @@ fn main() {
for key in keys {
match key {
Scancode::Q => game.terminate(),
Scancode::W => dir = Direction::Up,
Scancode::A => dir = Direction::Left,
Scancode::S => dir = Direction::Down,
Scancode::D => dir = Direction::Right,
Scancode::W | Scancode::Up => dir = Direction::Up,
Scancode::A | Scancode::Left => dir = Direction::Left,
Scancode::S | Scancode::Down => dir = Direction::Down,
Scancode::D | Scancode::Right => dir = Direction::Right,
_ => (),
};
}
{
let mut last_part = snake[0].position();
for s in snake.iter().skip(1) {
let (lastx, lasty) = last_part;
let (x, y) = s.position();
let (xdiff, ydiff) = (lastx - x, y - lasty);
s.translate((xdiff, ydiff));
last_part = s.position();
}
}
// The snake head needs to be moved after the body or else the body will just collapse into the head
match dir {
Direction::Up => {
snake[0].translate((0, 37));
@ -51,18 +64,7 @@ fn main() {
}
};
{
let mut last_part = snake[0].position();
for s in &mut *snake {
let (lastx, lasty) = last_part;
let (x, y) = s.position();
let (xdiff, ydiff) = (lastx - x, y - lasty);
s.translate((xdiff, ydiff));
last_part = s.position();
}
}
// So that the snake doesn't move at super speed
std::thread::sleep(Duration::from_millis(125));
snake.draw(ctx).unwrap();
})