Cistercian numerals: Difference between revisions

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/// initialize CANVAS
/// initialize CANVAS
unsafe fn init_n() {
fn init_n() {
for i in 0..GRID_SIZE {
for i in 0..GRID_SIZE {
for j in 0..GRID_SIZE {
for j in 0..GRID_SIZE {
CANVAS[i][j] = ' ';
unsafe { CANVAS[i][j] = ' '; }
}
}
CANVAS[i][5] = '#';
unsafe { CANVAS[i][5] = '#'; }
}
}
}
}


/// draw horizontal
/// draw horizontal
unsafe fn horizontal(c1: usize, c2: usize, r: usize) {
fn horizontal(c1: usize, c2: usize, r: usize) {
for c in c1..=c2 {
for c in c1..=c2 {
CANVAS[r][c] = '#';
unsafe { CANVAS[r][c] = '#'; }
}
}
}
}


/// draw vertical
/// draw vertical
unsafe fn vertical(r1: usize, r2: usize, c: usize) {
fn vertical(r1: usize, r2: usize, c: usize) {
for r in r1..=r2 {
for r in r1..=r2 {
CANVAS[r][c] = '#';
unsafe { CANVAS[r][c] = '#'; }
}
}
}
}


/// draw diagonal NE to SW
/// draw diagonal NE to SW
unsafe fn diag_d(c1 : usize, c2: usize, r: usize) {
fn diag_d(c1 : usize, c2: usize, r: usize) {
for c in c1..=c2 {
for c in c1..=c2 {
CANVAS[r + c - c1][c] = '#';
unsafe { CANVAS[r + c - c1][c] = '#'; }
}
}
}
}


/// draw diagonal SE to NW
/// draw diagonal SE to NW
unsafe fn diag_u(c1: usize, c2: usize, r: usize) {
fn diag_u(c1: usize, c2: usize, r: usize) {
for c in c1..=c2 {
for c in c1..=c2 {
CANVAS[r + c1 - c][c] = '#';
unsafe { CANVAS[r + c1 - c][c] = '#'; }
}
}
}
}


/// Mark the portions of the ones place.
/// Mark the portions of the ones place.
unsafe fn draw_ones(v: i32) {
fn draw_ones(v: i32) {
match v {
match v {
1 => horizontal(6, 10, 0),
1 => horizontal(6, 10, 0),
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/// Mark the portions of the tens place.
/// Mark the portions of the tens place.
unsafe fn draw_tens(v: i32) {
fn draw_tens(v: i32) {
match v {
match v {
1 => horizontal(0, 4, 0),
1 => horizontal(0, 4, 0),
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/// Mark the portions of the hundreds place.
/// Mark the portions of the hundreds place.
unsafe fn draw_hundreds(hundreds: i32) {
fn draw_hundreds(hundreds: i32) {
match hundreds {
match hundreds {
1 => horizontal(6, 10, 14),
1 => horizontal(6, 10, 14),
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/// Mark the portions of the thousands place.
/// Mark the portions of the thousands place.
unsafe fn draw_thousands(thousands: i32) {
fn draw_thousands(thousands: i32) {
match thousands {
match thousands {
1 => horizontal(0, 4, 14),
1 => horizontal(0, 4, 14),
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/// Mark the char matrix for the numeral drawing.
/// Mark the char matrix for the numeral drawing.
unsafe fn draw(mut v: i32) {
fn draw(mut v: i32) {
let thousands: i32 = v / 1000;
let thousands: i32 = v / 1000;
v %= 1000;
v %= 1000;
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}
}


/// Test the drawings as output to stdout.
/// Test the drawings as outout to stdout.
fn test_output(n: i32) {
fn test_output(n: i32) {
println!("{n}");
println!("{n}");
⚫
init_n();
⚫
draw(n);
unsafe {
unsafe {
⚫
init_n();
⚫
draw(n);
for line in CANVAS.iter() {
for line in CANVAS.iter() {
for c in line.iter() {
for c in line.iter() {
Retrieved from "https://rosettacode.org/wiki/Cistercian_numerals"