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DrawOnGithubContribCalendar
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| /** | |
| * Draw string in the github contribution calendar. | |
| * Usage: | |
| * 1. Create a "snippet" in the Chrome devtool -> Sources -> Snippets (in left sidebar). | |
| * 2. Visit your github profile page. | |
| * 3. Modify the string. | |
| * 4. Run | |
| * | |
| * Credit: | |
| * - 3x5 font data: https://github.com/fabiopiratininga/oled-font-3x5 | |
| */ | |
| const font = { | |
| monospace:true, | |
| width:3, | |
| height:5, | |
| fontData:[ | |
| 0x00,0x00,0x00, | |
| 0x00,0x17,0x00, | |
| 0x03,0x00,0x03, | |
| 0x1F,0x0A,0x1F, | |
| 0x12,0x1F,0x09, | |
| 0x09,0x04,0x12, | |
| 0x0A,0x15,0x1D, | |
| 0x00,0x03,0x00, | |
| 0x0e,0x11,0x00, | |
| 0x11,0x0e,0x00, | |
| 0x15,0x0e,0x15, | |
| 0x04,0x0e,0x04, | |
| 0x10,0x08,0x00, | |
| 0x04,0x04,0x04, | |
| 0x00,0x10,0x00, | |
| 0x18,0x04,0x03, | |
| 0x1F,0x11,0x1F, | |
| 0x02,0x1F,0x00, | |
| 0x19,0x15,0x12, | |
| 0x11,0x15,0x0A, | |
| 0x07,0x04,0x1F, | |
| 0x17,0x15,0x09, | |
| 0x0E,0x15,0x09, | |
| 0x01,0x1D,0x03, | |
| 0x0A,0x15,0x0A, | |
| 0x12,0x15,0x0E, | |
| 0x00,0x0A,0x00, | |
| 0x10,0x0A,0x00, | |
| 0x04,0x0A,0x11, | |
| 0x0A,0x0A,0x0A, | |
| 0x11,0x0A,0x04, | |
| 0x01,0x15,0x02, | |
| 0x0E,0x15,0x16, | |
| 0x1E,0x05,0x1E, | |
| 0x1F,0x15,0x0A, | |
| 0x0E,0x11,0x0A, | |
| 0x1f,0x11,0x0E, | |
| 0x1f,0x15,0x15, | |
| 0x1f,0x05,0x05, | |
| 0x0E,0x11,0x19, | |
| 0x1F,0x04,0x1F, | |
| 0x00,0x1F,0x00, | |
| 0x08,0x10,0x0F, | |
| 0x1F,0x04,0x1B, | |
| 0x1F,0x10,0x10, | |
| 0x1F,0x02,0x1F, | |
| 0x1F,0x01,0x1E, | |
| 0x0E,0x11,0x0E, | |
| 0x1F,0x05,0x02, | |
| 0x0E,0x11,0x1E, | |
| 0x1F,0x05,0x1A, | |
| 0x12,0x15,0x09, | |
| 0x01,0x1F,0x01, | |
| 0x1F,0x10,0x1F, | |
| 0x0F,0x18,0x0F, | |
| 0x1F,0x08,0x1F, | |
| 0x1B,0x04,0x1B, | |
| 0x07,0x1C,0x07, | |
| 0x19,0x15,0x13, | |
| 0x1f,0x11,0x00, | |
| 0x03,0x04,0x18, | |
| 0x11,0x1f,0x00, | |
| 0x02,0x01,0x02, | |
| 0x10,0x10,0x10, | |
| 0x01,0x02,0x00, | |
| 0x1E,0x05,0x1E, | |
| 0x1F,0x15,0x0A, | |
| 0x0E,0x11,0x0A, | |
| 0x1f,0x11,0x0E, | |
| 0x1f,0x15,0x15, | |
| 0x1f,0x05,0x05, | |
| 0x0E,0x11,0x19, | |
| 0x1F,0x04,0x1F, | |
| 0x00,0x1F,0x00, | |
| 0x08,0x10,0x0F, | |
| 0x1F,0x04,0x1B, | |
| 0x1F,0x10,0x10, | |
| 0x1F,0x02,0x1F, | |
| 0x1F,0x01,0x1E, | |
| 0x0E,0x11,0x0E, | |
| 0x1F,0x05,0x02, | |
| 0x0E,0x11,0x1E, | |
| 0x1F,0x05,0x1A, | |
| 0x12,0x15,0x09, | |
| 0x01,0x1F,0x01, | |
| 0x1F,0x10,0x1F, | |
| 0x0F,0x18,0x0F, | |
| 0x1F,0x08,0x1F, | |
| 0x1B,0x04,0x1B, | |
| 0x07,0x1C,0x07, | |
| 0x19,0x15,0x13, | |
| 0x04,0x1F,0x11, | |
| 0x00,0x1B,0x00, | |
| 0x11,0x1f,0x04, | |
| 0x01,0x02,0x01 | |
| ], | |
| lookup: [' ','!','"','#','$','%','&',"'",'(',')','*','+',',','-','.','/','0','1','2','3','4','5','6','7','8','9',':',';','<','=','>','?','@','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','[','\\',']','^','_','`','a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','{','|','}','~'] | |
| }; | |
| function getFontData(ch) { | |
| const idx = font.lookup.indexOf(ch); | |
| if (idx > -1) { | |
| const fontData = font.fontData.slice(3 * idx, 3 * idx + 3); | |
| return fontData; | |
| } | |
| return null; | |
| } | |
| function getStringData(s) { | |
| const data = []; | |
| for (let i = 0; i < s.length; i++) { | |
| const c = s.charAt(i); | |
| const charData = getFontData(c); | |
| for (let j = 0; j < charData.length; j++) { | |
| data.push(charData[j]); | |
| } | |
| data.push(0); | |
| } | |
| return data; | |
| } | |
| function drawOnContributionGraph(data) { | |
| const pixels = document.querySelectorAll('.ContributionCalendar-day'); | |
| const numPixels = pixels.length - 5; // last 5 pixels are legends | |
| // first column | |
| for (let i = 0; i < 7; i++) { | |
| pixels[i].dataset.level = 0; | |
| } | |
| // draw chars | |
| for (let i = 0; i < data.length; i++) { | |
| if (7 + i * 7 >= numPixels) break; | |
| pixels[7 + 7 * i].dataset.level = 0; | |
| for (let j = 0; j < 5; j++) { | |
| pixels[7 + 7 * i + j + 1].dataset.level = ((data[i] >> j) & 1) ? Math.floor(Math.random() * 2 + 3) : 0; | |
| } | |
| pixels[7 + 7 * i + 6].dataset.level = 0; | |
| } | |
| // remaining columns | |
| for (let i = (data.length + 1) * 7; i < numPixels; i++) { | |
| pixels[i].dataset.level = 0; | |
| } | |
| } | |
| const data = getStringData('HELLO WORLD'); | |
| drawOnContributionGraph(data); |
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