Generate a plottable calendar

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const month = 10 // min=0, max=11, step=1 (Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec) const year = 2021 // min=2020, max=2030, step=1 const first_day = new Date(year, month, 1).getDay() // You can find the Turtle API reference here: https://turtletoy.net/syntax Canvas.setpenopacity(1); const rows = 5 const cols = 7 const date_size = 7 // min=3, max=12, step=1 const date_percent = 0.7 // Global code will be evaluated once. const turtle = new Turtle(); const spacing = Math.min(Math.floor(200 / rows), Math.floor(200 / cols)) const x = (200 - cols * spacing) / 2 - 100 const y = (200 - rows * spacing) / 2 - 100 const seg_len = (date_size * date_percent) / 2 turtle.penup() function draw_grid() { turtle.penup() for (let r = 0; r <= rows; r++) { turtle.goto(x, y + r * spacing) turtle.pendown() turtle.goto(x + cols * spacing, y + r * spacing) turtle.penup() } for (let c = 0; c <= cols; c++) { turtle.goto(x + c * spacing, y) turtle.pendown() turtle.goto(x + c * spacing, y + rows * spacing) turtle.penup() } } function draw_corner(r, c) { cy = y + spacing * r cx = x + spacing * c turtle.goto(cx, cy) turtle.seth(0) turtle.forward(date_size) turtle.right(90) turtle.pendown() turtle.forward(date_size) turtle.right(90) turtle.forward(date_size) turtle.penup() } function draw_number(x, y, n, seg_len) { turtle.penup() turtle.goto(x, y) turtle.seth(0) switch(n) { case 0: turtle.pendown() turtle.forward(seg_len) turtle.right(90) turtle.forward(seg_len * 2) turtle.right(90) turtle.forward(seg_len) turtle.right(90) turtle.forward(seg_len * 2) break case 1: turtle.forward(seg_len) turtle.pendown() turtle.right(90) turtle.forward(seg_len * 2) break case 2: turtle.pendown() turtle.forward(seg_len) turtle.right(90) turtle.forward(seg_len) turtle.right(90) turtle.forward(seg_len) turtle.left(90) turtle.forward(seg_len) turtle.left(90) turtle.forward(seg_len) break case 3: turtle.pendown() turtle.forward(seg_len) turtle.right(90) turtle.forward(seg_len * 2) turtle.right(90) turtle.forward(seg_len) turtle.penup() turtle.right(90) turtle.forward(seg_len) turtle.right(90) turtle.pendown() turtle.forward(seg_len) break case 4: turtle.right(90) turtle.pendown() turtle.forward(seg_len) turtle.left(90) turtle.forward(seg_len) turtle.right(90) turtle.forward(seg_len) turtle.penup() turtle.backward(seg_len) turtle.pendown() turtle.backward(seg_len) break case 5: turtle.forward(seg_len) turtle.right(180) turtle.pendown() turtle.forward(seg_len) turtle.left(90) turtle.forward(seg_len) turtle.left(90) turtle.forward(seg_len) turtle.right(90) turtle.forward(seg_len) turtle.right(90) turtle.forward(seg_len) break case 6: turtle.forward(seg_len) turtle.right(180) turtle.pendown() turtle.forward(seg_len) turtle.left(90) turtle.forward(seg_len * 2) turtle.left(90) turtle.forward(seg_len) turtle.left(90) turtle.forward(seg_len) turtle.left(90) turtle.forward(seg_len) break case 7: turtle.pendown() turtle.forward(seg_len) turtle.right(90) turtle.forward(seg_len * 2) break case 8: turtle.pendown() turtle.forward(seg_len) turtle.right(90) turtle.forward(seg_len * 2) turtle.right(90) turtle.forward(seg_len) turtle.right(90) turtle.forward(seg_len * 2) turtle.penup() turtle.backward(seg_len) turtle.right(90) turtle.pendown() turtle.forward(seg_len) break case 9: turtle.forward(seg_len) turtle.right(90) turtle.forward(seg_len) turtle.right(90) turtle.pendown() turtle.forward(seg_len) turtle.right(90) turtle.forward(seg_len) turtle.right(90) turtle.forward(seg_len) turtle.right(90) turtle.forward(seg_len * 2) break } turtle.penup() } function draw_date(r, c, d) { const h_offset = date_size * (1 - date_percent) / 3 const v_offset = date_size * (1 - date_percent) / 2 draw_corner(r, c) cy = y + spacing * r cx = x + spacing * c if (d > 9) { draw_number(cx + h_offset, cy + v_offset, Math.trunc(d / 10), seg_len) } draw_number(cx + h_offset * 2 + seg_len, cy + v_offset, d % 10, seg_len) } function get_month_dates() { for (let r = 0; r < rows; r++) { for (let c = 0; c < cols; c++) { day = r * cols + c date = new Date(year, month, day - first_day + 1).getDate() draw_date(r, c, date) } } } // https://turtletoy.net/turtle/8abd768e03 function drawLetter(let, x, y, size) { var points = Letter[let]; if (typeof points == 'undefined' || points.length < 1) return; turtle.penup(); for (var i = 0; i < points.length - 1; i = i+2) { turtle.goto(x+points[i]*size,y-points[i+1]*size); if (i == 0) turtle.pendown(); } } function drawWord(word, x, y, size) { word = word.toUpperCase(); for (var i = 0; i < word.length; i++) { // repeat the letter shifted to darken/shadow [0,0.2].forEach(function(shift) { drawLetter(word[i], x+shift, y+shift, size); }); // letter spacing if (word[i] == 'I') { x += size-3 } else x += size+1; } } var Letter = new Array(); Letter['A'] = new Array(0,0,0.5,1,0.75,0.5,0.25,0.5,0.75,0.5,1,0); Letter['B'] = new Array(0,0,0,1,0.625,1,0.75,0.875,0.75,0.625,0.625,0.5,0,0.5,0.625,0.5,0.75,0.375,0.75,0.125,0.625,0,0,0); Letter['C'] = new Array(0.75,0.125,0.625,0,0.125,0,0,0.125,0,0.875,0.125,1,0.625,1,0.75,0.875); Letter['D'] = new Array(0,0,0,1,0.625,1,0.75,0.875,0.75,0.125,0.625,0,0,0); Letter['E'] = new Array(0.75,0,0,0,0,0.5,0.75,0.5,0,0.5,0,1,0.75,1); Letter['F'] = new Array(0,0,0,0.5,0.75,0.5,0,0.5,0,1,0.75,1); Letter['G'] = new Array(0.75,0.5,0.625,0.5,0.75,0.5,0.75,0.125,0.625,0,0.125,0,0,0.125,0,0.875,0.125,1,0.625,1,0.75,0.875); Letter['H'] = new Array(0,0,0,1,0,0.5,0.75,0.5,0.75,1,0.75,0); Letter['I'] = new Array(0,0,0.25,0,0.125,0,0.125,1,0,1,0.25,1); Letter['J'] = new Array(0,0.125,0.125,0,0.375,0,0.5,0.125,0.5,1); Letter['K'] = new Array(0,0,0,1,0,0.5,0.75,1,0,0.5,0.75,0); Letter['L'] = new Array(0,0,0,1,0,0,0.75,0); Letter['M'] = new Array(0,0,0,1,0.5,0,1,1,1,0); Letter['N'] = new Array(0,0,0,1,0.75,0,0.75,1); Letter['O'] = new Array(0.75,0.125,0.625,0,0.125,0,0,0.125,0,0.875,0.125,1,0.625,1,0.75,0.875,0.75,0.125); Letter['P'] = new Array(0,0,0,1,0.625,1,0.75,0.875,0.75,0.625,0.625,0.5,0,0.5); Letter['Q'] = new Array(0.75,0.125,0.625,0,0.125,0,0,0.125,0,0.875,0.125,1,0.625,1,0.75,0.875,0.75,0.125,0.875,0); Letter['R'] = new Array(0,0,0,1,0.625,1,0.75,0.875,0.75,0.625,0.625,0.5,0,0.5,0.625,0.5,0.875,0); Letter['S'] = new Array(0,0.125,0.125,0,0.625,0,0.75,0.125,0.75,0.375,0.675,0.5,0.125,0.5,0,0.625,0,0.875,0.125,1,0.625,1,0.75,0.875); Letter['T'] = new Array(0,1,0.5,1,0.5,0,0.5,1,1,1); Letter['U'] = new Array(0,1,0,0.125,0.125,0,0.625,0,0.75,0.125,0.75,1); Letter['V'] = new Array(0,1,0.375,0,0.75,1); Letter['W'] = new Array(0,1,0.25,0,0.5,1,0.75,0,1,1); Letter['X'] = new Array(0,0,0.375,0.5,0,1,0.375,0.5,0.75,1,0.375,0.5,0.75,0); Letter['Y'] = new Array(0,1,0.375,0.5,0.375,0,0.375,0.5,0.75,1); Letter['Z'] = new Array(0,1,0.75,1,0,0,0.75,0); Letter[' '] = new Array(); Months = new Array('JANUARY', 'FEBRUARY', 'MARCH', 'APRIL', 'MAY', 'JUNE', 'JULY', 'AUGUST', 'SEPTEMBER', 'OCTOBER', 'NOVEMBER', 'DECEMBER') // The walk function will be called until it returns false. function walk(i) { draw_grid() get_month_dates() edge_offset = 9 drawWord('SUN', x + 0 * spacing + edge_offset, y - 3, 2.5) drawWord('MON', x + 1 * spacing + edge_offset, y - 3, 2.5) drawWord('TUE', x + 2 * spacing + edge_offset, y - 3, 2.5) drawWord('WED', x + 3 * spacing + edge_offset, y - 3, 2.5) drawWord('THU', x + 4 * spacing + edge_offset, y - 3, 2.5) drawWord('FRI', x + 5 * spacing + edge_offset, y - 3, 2.5) drawWord('SAT', x + 6 * spacing + edge_offset, y - 3, 2.5) drawWord(Months[month], x + 5, y - 10, 5) draw_number(100 - 25, y - 15, Math.trunc(year / 1000) % 10, 3) draw_number(100 - 20, y - 15, Math.trunc(year / 100) % 10, 3) draw_number(100 - 15, y - 15, Math.trunc(year / 10) % 10, 3) draw_number(100 - 10, y - 15, Math.trunc(year / 1) % 10, 3) return false; }