Move Images/Drawing to Separate Files

pub fn draw_d51() {
    let d51: Vec<Vec<String>> = get_d51();

    for each_inner_vec in d51 {
        for each_line in &each_inner_vec {
            println!("{}", each_line);
        }
    }
} // end of draw_d51()

fn get_d51() -> Vec<Vec<String>> {
    let d51: Vec<Vec<String>> = vec![
        vec![
            /* Frame-set #0 */                                                          // The next ten lines form a "Vector of Strings".
            "      ====        ________                ___________ ".to_string(), // Each of these ten lines is a String.
            "  _D _|  |_______/        \\__I_I_____===__|_________| ".to_string(), // Think of each character in a String as a single Pringle's Potato Chip.
            "   |(_)---  |   H\\________/ |   |        =|___ ___|   ".to_string(), // Each of these lines is about 48 "Pringle's chips" long.
            "   /     |  |   H  |  |     |   |         ||_| |_||   ".to_string(), // Now imagine those 48 chips in a Pringle's can. The can is the "String".
            "  |      |  |   H  |__--------------------| [___] |   ".to_string(), // Now imagine ten Pringle's cans in a cardboard carton. The carton is the "Vector".
            "  | ________|___H__/__|_____/[][]~\\_______|       |   ".to_string(),
            "  |/ |   |-----------I_____I [][] []  D   |=======|__ ".to_string(),
            "__/ =| o |=-~~\\  /~~\\  /~~\\  /~~\\ ____Y___________|__ ".to_string(),
            " |/-=|___|=    ||    ||    ||    |_____/~\\___/        ".to_string(),
            "  \\_/      \\O=====O=====O=====O_/      \\_/            ".to_string(),
        ],
        vec![
            /* Frame-set #1 */                                                        // Now imagine six of those cartons in a shipping container.
            "      ====        ________                ___________ ".to_string(), // This second vector is the second carton in that shipping container.
            "  _D _|  |_______/        \\__I_I_____===__|_________| ".to_string(),
            "   |(_)---  |   H\\________/ |   |        =|___ ___|   ".to_string(),
            "   /     |  |   H  |  |     |   |         ||_| |_||   ".to_string(),
            "  |      |  |   H  |__--------------------| [___] |   ".to_string(),
            "  | ________|___H__/__|_____/[][]~\\_______|       |   ".to_string(),
            "  |/ |   |-----------I_____I [][] []  D   |=======|__ ".to_string(),
            "__/ =| o |=-~~\\  /~~\\  /~~\\  /~~\\ ____Y___________|__ ".to_string(),
            " |/-=|___|=O=====O=====O=====O   |_____/~\\___/        ".to_string(),
            "  \\_/      \\__/  \\__/  \\__/  \\__/      \\_/            ".to_string(),
        ],
        vec![
            /* Frame-set #2 */
            "      ====        ________                ___________ ".to_string(), // The shipping container holding all six cartons is the "Vector of Vector of Strings".
            "  _D _|  |_______/        \\__I_I_____===__|_________| ".to_string(), // This shipping container is labeled "d51" by the "let d51" line above.
            "   |(_)---  |   H\\________/ |   |        =|___ ___|   ".to_string(),
            "   /     |  |   H  |  |     |   |         ||_| |_||   ".to_string(), // The "pub fn get_d51()" line above "returns" (that's the "->" symbol) this vector of
            "  |      |  |   H  |__--------------------| [___] |   ".to_string(), // vector of Strings, but unlabeled; this function only uses the label "d51" internally.
            "  | ________|___H__/__|_____/[][]~\\_______|       |   ".to_string(), // The portion of the program that calls this function puts its own label on the shipping
            "  |/ |   |-----------I_____I [][] []  D   |=======|__ ".to_string(), // container it gets back from this function. It is free to use the same label, or a
            "__/ =| o |=-O=====O=====O=====O \\ ____Y___________|__ ".to_string(), // different one.
            " |/-=|___|=    ||    ||    ||    |_____/~\\___/        ".to_string(),
            "  \\_/      \\__/  \\__/  \\__/  \\__/      \\_/            ".to_string(),
        ],
        vec![
            /* Frame-set #3 */                                                        // This is the fourth ('cause we started counting with zero) vector of Strings in the
            "      ====        ________                ___________ ".to_string(), // shipping container. It can be accessed as "d51[3]", as in, "Put the d51[3] carton
            "  _D _|  |_______/        \\__I_I_____===__|_________| ".to_string(), // of Pringle's on this shelf, and put the other five cartons, d51[0], d51[1], d51[2],
            "   |(_)---  |   H\\________/ |   |        =|___ ___|   ".to_string(), // d51[4], and d51[5] in the storage closet."
            "   /     |  |   H  |  |     |   |         ||_| |_||   ".to_string(),
            "  |      |  |   H  |__--------------------| [___] |   ".to_string(), // This fifth line of the fourth carton can be accessed as"d51[3][4]" (4 because we
            "  | ________|___H__/__|_____/[][]~\\_______|       |   ".to_string(), // start counting with zero).
            "  |/ |   |-----------I_____I [][] []  D   |=======|__ ".to_string(),
            "__/ =| o |=-~O=====O=====O=====O\\ ____Y___________|__ ".to_string(),
            " |/-=|___|=    ||    ||    ||    |_____/~\\___/        ".to_string(),
            "  \\_/      \\__/  \\__/  \\__/  \\__/      \\_/            ".to_string(),
        ],
        vec![
            /* Frame-set #4 */
            "      ====        ________                ___________ ".to_string(),
            "  _D _|  |_______/        \\__I_I_____===__|_________| ".to_string(),
            "   |(_)---  |   H\\________/ |   |        =|___ ___|   ".to_string(),
            "   /     |  |   H  |  |     |   |         ||_| |_||   ".to_string(),
            "  |      |  |   H  |__--------------------| [___] |   ".to_string(),
            "  | ________|___H__/__|_____/[][]~\\_______|       |   ".to_string(),
            "  |/ |   |-----------I_____I [][] []  D   |=======|__ ".to_string(),
            "__/ =| o |=-~~\\  /~~\\  /~~\\  /~~\\ ____Y___________|__ ".to_string(),
            " |/-=|___|=   O=====O=====O=====O|_____/~\\___/        ".to_string(),
            "  \\_/      \\__/  \\__/  \\__/  \\__/      \\_/            ".to_string(),
        ],
        vec![
            /* Frame-set #5 */
            "      ====        ________                ___________ ".to_string(),
            "  _D _|  |_______/        \\__I_I_____===__|_________| ".to_string(),
            "   |(_)---  |   H\\________/ |   |        =|___ ___|   ".to_string(),
            "   /     |  |   H  |  |     |   |         ||_| |_||   ".to_string(),
            "  |      |  |   H  |__--------------------| [___] |   ".to_string(),
            "  | ________|___H__/__|_____/[][]~\\_______|       |   ".to_string(),
            "  |/ |   |-----------I_____I [][] []  D   |=======|__ ".to_string(),
            "__/ =| o |=-~~\\  /~~\\  /~~\\  /~~\\ ____Y___________|__ ".to_string(),
            " |/-=|___|=    ||    ||    ||    |_____/~\\___/        ".to_string(),
            "  \\_/      \\_O=====O=====O=====O/      \\_/            ".to_string(),
        ],
    ];

    return d51;
} // end of get_d51()
  

pub fn draw_d51() {
    let d51: Vec<Vec<String>> = get_d51();

    for each_inner_vec in d51 {
        for each_line in &each_inner_vec {
            println!("{}", each_line);
        }
    }
} // end of draw_d51()

const D51: &str = r"
      ====        ________                ___________'
  _D _|  |_______/        \__I_I_____===__|_________|'
   |(_)---  |   H\________/ |   |        =|___ ___|  '
   /     |  |   H  |  |     |   |         ||_| |_||  '
  |      |  |   H  |__--------------------| [___] |  '
  | ________|___H__/__|_____/[][]~\_______|       |  '
  |/ |   |-----------I_____I [][] []  D   |=======|__'
__/ =| o |=-~~\  /~~\  /~~\  /~~\ ____Y___________|__'
 |/-=|___|=    ||    ||    ||    |_____/~\___/       '
  \_/      \O=====O=====O=====O_/      \_/           '

      ====        ________                ___________'
  _D _|  |_______/        \__I_I_____===__|_________|'
   |(_)---  |   H\________/ |   |        =|___ ___|  '
   /     |  |   H  |  |     |   |         ||_| |_||  '
  |      |  |   H  |__--------------------| [___] |  '
  | ________|___H__/__|_____/[][]~\_______|       |  '
  |/ |   |-----------I_____I [][] []  D   |=======|__'
__/ =| o |=-~~\  /~~\  /~~\  /~~\ ____Y___________|__'
 |/-=|___|=O=====O=====O=====O   |_____/~\___/       '
  \_/      \__/  \__/  \__/  \__/      \_/           '

      ====        ________                ___________'
  _D _|  |_______/        \__I_I_____===__|_________|'
   |(_)---  |   H\________/ |   |        =|___ ___|  '
   /     |  |   H  |  |     |   |         ||_| |_||  '
  |      |  |   H  |__--------------------| [___] |  '
  | ________|___H__/__|_____/[][]~\_______|       |  '
  |/ |   |-----------I_____I [][] []  D   |=======|__'
__/ =| o |=-O=====O=====O=====O \ ____Y___________|__'
 |/-=|___|=    ||    ||    ||    |_____/~\___/       '
  \_/      \__/  \__/  \__/  \__/      \_/           '

      ====        ________                ___________'
  _D _|  |_______/        \__I_I_____===__|_________|'
   |(_)---  |   H\________/ |   |        =|___ ___|  '
   /     |  |   H  |  |     |   |         ||_| |_||  '
  |      |  |   H  |__--------------------| [___] |  '
  | ________|___H__/__|_____/[][]~\_______|       |  '
  |/ |   |-----------I_____I [][] []  D   |=======|__'
__/ =| o |=-~O=====O=====O=====O\ ____Y___________|__'
 |/-=|___|=    ||    ||    ||    |_____/~\___/       '
  \_/      \__/  \__/  \__/  \__/      \_/           '

      ====        ________                ___________'
  _D _|  |_______/        \__I_I_____===__|_________|'
   |(_)---  |   H\________/ |   |        =|___ ___|  '
   /     |  |   H  |  |     |   |         ||_| |_||  '
  |      |  |   H  |__--------------------| [___] |  '
  | ________|___H__/__|_____/[][]~\_______|       |  '
  |/ |   |-----------I_____I [][] []  D   |=======|__'
__/ =| o |=-~~\  /~~\  /~~\  /~~\ ____Y___________|__'
 |/-=|___|=   O=====O=====O=====O|_____/~\___/       '
  \_/      \__/  \__/  \__/  \__/      \_/           '

      ====        ________                ___________'
  _D _|  |_______/        \__I_I_____===__|_________|'
   |(_)---  |   H\________/ |   |        =|___ ___|  '
   /     |  |   H  |  |     |   |         ||_| |_||  '
  |      |  |   H  |__--------------------| [___] |  '
  | ________|___H__/__|_____/[][]~\_______|       |  '
  |/ |   |-----------I_____I [][] []  D   |=======|__'
__/ =| o |=-~~\  /~~\  /~~\  /~~\ ____Y___________|__'
 |/-=|___|=    ||    ||    ||    |_____/~\___/       '
  \_/      \_O=====O=====O=====O/      \_/           '
";

...
} // end of draw_d51()

fn convert_to_vecvecstring(image_str: &str) -> Vec<Vec<String>> {
/* 
 *  This is bad coding - we're *assuming* the &str to be ASCII-sized chars; include a non-ASCII character,
 *  like '汉', in your drawing, where a string operation tries to access it, like as the first character
 *  of the image's const declaration (pub const D51: &str = r"汉), and watch your program go BOOM!
*/
    //The first character in the string is a newline; lose it.
    let image_str = &image_str[1..image_str.len()];

    // Create new blank vector of vector of Strings.
    let mut outer_vec: Vec<Vec<String>> = Vec::new();

    // This keeps track of which frame/inner vector we're processing.
    let mut inner_vec_num: usize = 0;

    // Create first inner vector in the outer vector.
    outer_vec.push(Vec::new());

    for each_line in image_str.lines() {
        if each_line != "" {
            // Remove single-quote mark at end of each line, if it exists..
            let each_line = if &each_line[each_line.len() - 1..] == "'" {
                each_line[0..each_line.len() - 1].to_string()
            } else {
                each_line.to_string()
            };
            // Then add the string to the current inner vector.
            outer_vec[inner_vec_num].push(each_line);
        } else {
            outer_vec.push(Vec::new());
            inner_vec_num += 1;
        }
    }
    // Either return method below is acceptable. The second one only works as the last expression in the function.
    return outer_vec; // We're returning the entire vector of String vectors.
    // outer_vec // We're returning the entire vector of String vectors.
} // end of convert_to_vecvecstring()

pub const D51: &str = r"
...

    
pub fn draw_d51() {
    // Convert const into a vector of String vectors.
    let image_vecvecstring = convert_to_vecvecstring(D51);

    for each_inner_vec in d51image_vecvecstring {
        for each_line in &each_inner_vec {
            println!("{}", each_line);
        }
    }
} // end of draw_d51()

/* d51.rs */
/* jack.rs */

    pub fn draw_d51jack() {
    // Convert const into a vector of String vectors.
    let image_vecvecstring = convert_to_vecvecstring(D51JACK);

    for each_inner_vec in image_vecvecstring {
        for each_line in &each_inner_vec {
            println!("{}", each_line);
        }
    }
} // end of draw_d51jack()

fn convert_to_vecvecstring(image_str: &str) -> Vec<Vec<String>> {
/* 
 *  This is bad coding - we're *assuming* the &str to be ASCII-sized chars; include a non-ASCII character,
 *  like '汉', in your drawing, where a string operation tries to access it, like as the first character
 *  of the image's const declaration (pub const D51: &str = r"汉), and watch your program go BOOM!
*/
    //The first character in the string is a newline; lose it.
    let image_str = &image_str[1..image_str.len()];

    // Create new blank vector of vector of Strings.
    let mut outer_vec: Vec<Vec<String>> = Vec::new();

    // This keeps track of which frame/inner vector we're processing.
    let mut inner_vec_num: usize = 0;

    // Create first inner vector in the outer vector.
    outer_vec.push(Vec::new());

    for each_line in image_str.lines() {
        if each_line != "" {
            // Remove single-quote mark at end of each line, if it exists..
            let each_line = if &each_line[each_line.len() - 1..] == "'" {
                each_line[0..each_line.len() - 1].to_string()
            } else {
                each_line.to_string()
            };
            // Then add the string to the current inner vector.
            outer_vec[inner_vec_num].push(each_line);
        } else {
            outer_vec.push(Vec::new());
            inner_vec_num += 1;
        }
    }

    // Either return method below is acceptable. The second one only works as the last expression in the function.
    //return outer_vec; // We're returning the entire vector of String vectors.
    // outer_vec // We're returning the entire vector of String vectors.
} // end of convert_to_vecvecstring()


const JACK: &str = r"
 \ 0 /   '
  \|/    '
   |     '
  / \    '
_/   \_  '

         '
 __0__   '
/  |  \  '
  / \    '
 _\ /_   '

         '
   o     '
 /\ /\   '
 |/ \|   '
 _\ /_   '

         '
 __0__   '
/  |  \  '
  / \    '
 _\ /_   '         '
"; // end of JACK

mod d51;
mod jack;

use d51::*;

fn main() {
    draw_d51();
    jack::draw_jack();
} // end of main()

mod d51;
mod jack;
mod coalcar;

use d51::*;

fn main() {
    draw_d51();
    jack::draw_jack();
    coalcar::draw_coalcar();
} // end of main()

/* jack.rs */
/* coalcar.rs */

    pub fn draw_jackcoalcar() {
    // Convert const into a vector of String vectors.
    let image_vecvecstring = convert_to_vecvecstring(jackCOALCAR);

    for each_inner_vec in image_vecvecstring {
        for each_line in &each_inner_vec {
            println!("{}", each_line);
        }
    }
} // end of draw_jackcoalcar()

fn convert_to_vecvecstring(image_str: &str) -> Vec<Vec<String>> {
/* 
 *  This is bad coding - we're *assuming* the &str to be ASCII-sized chars; include a non-ASCII character,
 *  like '汉', in your drawing, where a string operation tries to access it, like as the first character
 *  of the image's const declaration (pub const D51: &str = r"汉), and watch your program go BOOM!
*/
    //The first character in the string is a newline; lose it.
    let image_str = &image_str[1..image_str.len()];

    // Create new blank vector of vector of Strings.
    let mut outer_vec: Vec<Vec<String>> = Vec::new();

    // This keeps track of which frame/inner vector we're processing.
    let mut inner_vec_num: usize = 0;

    // Create first inner vector in the outer vector.
    outer_vec.push(Vec::new());

    for each_line in image_str.lines() {
        if each_line != "" {
            // Remove single-quote mark at end of each line, if it exists..
            let each_line = if &each_line[each_line.len() - 1..] == "'" {
                each_line[0..each_line.len() - 1].to_string()
            } else {
                each_line.to_string()
            };
            // Then add the string to the current inner vector.
            outer_vec[inner_vec_num].push(each_line);
        } else {
            outer_vec.push(Vec::new());
            inner_vec_num += 1;
        }
    }
    // Either return method below is acceptable. The second one only works as the last expression in the function.
    // return outer_vec; // We're returning the entire vector of String vectors.
    outer_vec // We're returning the entire vector of String vectors.
} // end of convert_to_vecvecstring()


const COALCAR: &str = r"
    _________________         
   _|                \_____A  
 =|                        |  
 -|                        |  
__|________________________|_ 
|__________________________|_ 
   |_D__D__D_|  |_D__D__D_|   
    \_/   \_/    \_/   \_/ 
"; // end of COALCAR

mod d51;
mod jack;
mod coalcar;

use d51::*;

fn main() {
    draw_d51();
    jack::draw_jack();
    coalcar::draw_coalcar();
} // end of main()

fn convert_to_vecvecstring(image_str: &str) -> Vec<Vec<String>> {
/* 
 *  This is bad coding - we're *assuming* the &str to be ASCII-sized chars; include a non-ASCII character,
 *  like '汉', in your drawing, where a string operation tries to access it, like as the first character
 *  of the image's const declaration (pub const D51: &str = r"汉), and watch your program go BOOM!
*/
    //The first character in the string is a newline; lose it.
    let image_str = &image_str[1..image_str.len()];

    // Create new blank vector of vector of Strings.
    let mut outer_vec: Vec<Vec<String>> = Vec::new();

    // This keeps track of which frame/inner vector we're processing.
    let mut inner_vec_num: usize = 0;

    // Create first inner vector in the outer vector.
    outer_vec.push(Vec::new());

    for each_line in image_str.lines() {
        if each_line != "" {
            // Remove single-quote mark at end of each line, if it exists..
            let each_line = if &each_line[each_line.len() - 1..] == "'" {
                each_line[0..each_line.len() - 1].to_string()
            } else {
                each_line.to_string()
            };
            // Then add the string to the current inner vector.
            outer_vec[inner_vec_num].push(each_line);
        } else {
            outer_vec.push(Vec::new());
            inner_vec_num += 1;
        }
    }
    // Either return method below is acceptable. The second one only works as the last expression in the function.
    // return outer_vec; // We're returning the entire vector of String vectors.
    // outer_vec // We're returning the entire vector of String vectors.
} // end of convert_to_vecvecstring()

/* jack.rs */

use crate::convert_to_vecvecstring;

pub fn draw_jack() {
    // Convert const into a vector of String vectors.
    let image_vecvecstring = convert_to_vecvecstring(JACK);

    for each_inner_vec in image_vecvecstring {
        for each_line in &each_inner_vec {
            println!("{}", each_line);
        }
    }
} // end of draw_jack()
...

/* jack.rs */

use crate::*;

pub fn draw_jack() {
    // Convert const into a vector of String vectors.
    let image_vecvecstring = convert_to_vecvecstring(JACK);

    for each_inner_vec in image_vecvecstring {
        for each_line in &each_inner_vec {
            println!("{}", each_line);
        }
    }
} // end of draw_jack()
...

/* jack.rs */

pub fn draw_jack() {
    // Convert const into a vector of String vectors.
    let image_vecvecstring = crate::convert_to_vecvecstring(JACK);

    for each_inner_vec in image_vecvecstring {
        for each_line in &each_inner_vec {
            println!("{}", each_line);
        }
    }
} // end of draw_jack()
...