A small typing test program in Rust
| 1 | use rand::prelude::*; |
| 2 | |
| 3 | #[derive(Debug)] |
| 4 | pub struct TextCombine { |
| 5 | text: String, |
| 6 | len: usize, |
| 7 | pos: usize, |
| 8 | err_n: usize, |
| 9 | err_s: String, |
| 10 | } |
| 11 | |
| 12 | impl TextCombine { |
| 13 | pub fn new() -> Self { |
| 14 | let words = [ |
| 15 | "hello", |
| 16 | "how", |
| 17 | "to", |
| 18 | "back", |
| 19 | "big", |
| 20 | "small", |
| 21 | "something", |
| 22 | "glad", |
| 23 | "general", |
| 24 | "tall", |
| 25 | "nail", |
| 26 | "whatever", |
| 27 | "joke", |
| 28 | "feral", |
| 29 | "apple", |
| 30 | "plow" |
| 31 | ]; |
| 32 | |
| 33 | /*let text = words |
| 34 | .choose_multiple(&mut rand::rng(), 10) |
| 35 | .cloned() |
| 36 | .collect::<Vec<_>>() |
| 37 | .join(" ");*/ |
| 38 | let mut rng = rand::rng(); |
| 39 | |
| 40 | let text = (0..60) |
| 41 | .filter_map(|_| words.choose(&mut rng)) |
| 42 | .cloned() |
| 43 | .collect::<Vec<_>>() |
| 44 | .join(" "); |
| 45 | |
| 46 | let len = text.chars().count(); |
| 47 | |
| 48 | Self { |
| 49 | text, |
| 50 | len, |
| 51 | pos: 0, |
| 52 | err_n: 0, |
| 53 | err_s: String::new(), |
| 54 | } |
| 55 | |
| 56 | } |
| 57 | |
| 58 | pub fn get_text(&self) -> &str { |
| 59 | &self.text |
| 60 | } |
| 61 | |
| 62 | pub fn get_pos(&self) -> usize { |
| 63 | self.pos |
| 64 | } |
| 65 | |
| 66 | pub fn pos_increment(&mut self) { |
| 67 | if self.pos < self.len { |
| 68 | self.pos += 1; |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | pub fn err_n_increment(&mut self) { |
| 73 | if self.real_pos() < self.len { |
| 74 | self.err_n += 1; |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | pub fn get_err_n(&self) -> usize { |
| 79 | self.err_n |
| 80 | } |
| 81 | |
| 82 | pub fn get_err_s(&self) -> &str { |
| 83 | &self.err_s |
| 84 | } |
| 85 | |
| 86 | pub fn push_err_s(&mut self, c: char) { |
| 87 | self.err_s.push(c); |
| 88 | } |
| 89 | |
| 90 | pub fn get_len(&self) -> usize { |
| 91 | self.len |
| 92 | } |
| 93 | |
| 94 | pub fn curr_char(&self) -> Option<char> { |
| 95 | self.pos_char(self.real_pos()) |
| 96 | } |
| 97 | |
| 98 | pub fn pos_char(&self, pos: usize) -> Option<char> { |
| 99 | self |
| 100 | .text |
| 101 | .chars() |
| 102 | .nth(pos) |
| 103 | } |
| 104 | |
| 105 | pub fn real_pos(&self) -> usize { |
| 106 | self.pos + self.err_n |
| 107 | } |
| 108 | |
| 109 | pub fn back(&mut self) { |
| 110 | if self.err_s.len() > 0 { |
| 111 | self.err_s.pop() ; |
| 112 | } else if self.err_n > 0 { |
| 113 | self.err_n -= 1; |
| 114 | } else if self.pos > 0 { |
| 115 | self.pos -= 1; |
| 116 | } |
| 117 | } |
| 118 | } |