56 lines
1.7 KiB
Rust
56 lines
1.7 KiB
Rust
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use std::collections::VecDeque;
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use std::fs::File;
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use std::io::{BufRead, BufReader};
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use std::ops::Range;
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const MapSize: usize = 1800;
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type Map = [[char; MapSize]; MapSize];
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fn find_range_in_line(line: &str) -> (Range<u16>, Range<u16>) {
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let mut parts = line.split(", ");
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let mut left_parts = parts.nth(0).unwrap().split("=");
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let left_coord_type: &str = left_parts.nth(0).unwrap();
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let left_number: u16 = left_parts.nth(0).unwrap().parse().unwrap();
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let mut right_parts = parts.nth(0).unwrap().split("=");
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let mut right_numbers = right_parts.nth(1).unwrap().split("..");
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let right_number_1: u16 = right_numbers.nth(0).unwrap().parse().unwrap();
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let right_number_2: u16 = right_numbers.nth(0).unwrap().parse().unwrap();
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let left_range = Range { start: left_number, end: left_number + 1 };
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let right_range = Range { start: right_number_1, end: right_number_2 + 1 };
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if left_coord_type == "x" {
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(left_range, right_range)
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} else {
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(right_range, left_range)
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}
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}
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fn build_map_from_file(filename: &str) -> Map {
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let lines: Vec<String> = BufReader::new(File::open(filename).unwrap())
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.lines()
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.map(|line| line.unwrap())
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.collect();
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let mut min_y = MapSize;
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let mut max_y = 0;
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let mut m: Map = [[' '; MapSize]; MapSize];
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m[500][0] = '+';
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for line in lines.iter() {
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let (x_range, y_range) = find_range_in_line(line.as_str());
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}
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m
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}
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fn main() {
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_range_from_line() {
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let line = "x=100, y=100..102";
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let (x_range, y_range) = find_range_in_line(line);
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assert_eq!(x_range, (100..101));
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assert_eq!(y_range, (100..103));
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}
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}
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