Rust Programming By Example

Interacting with the game map

Ok, we can now move all the tetrimino and generate them. Two mechanisms are still missing: checking lines to see whether one can be sent (that is, removed since complete) and making a tetrimino permanent (that is, not movable anymore).

Let's start with the line check:

fn check_lines(&mut self) {
    let mut y = 0;

    while y < self.game_map.len() {
        let mut complete = true;

        for x in &self.game_map[y] {
            if *x == 0 {
                complete = false;
                break
            }
        }
        if complete == true {
            self.game_map.remove(y);
            y -= 1;
            // increase the number of self.lines
        }
        y += 1;
    }
    while self.game_map.len() < 16 {
        self.game_map.insert(0, vec![0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
    }
}

For now, I didn't add the score, lines sent counting, nor level handling but ...