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| <html> | |
| <head> | |
| <style> | |
| .row div { | |
| height: 8px; | |
| display: inline-block; | |
| width: 8px; | |
| } | |
| .row div.active { | |
| background-color: red; | |
| } | |
| .row div.inactive { | |
| background-color: #99CCFF; | |
| } | |
| body { | |
| margin: 0 | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div class="automaton"> | |
| <div class="row"></div> | |
| </div> | |
| <script> | |
| function randomBinary() { | |
| let max = 1 | |
| let min = 0 | |
| return Math.floor( | |
| Math.random() * (max - min + 1) | |
| ) | |
| } | |
| for (let i = 0; i < 101; i++) { | |
| let div = document.createElement('div') | |
| document.querySelector('.row').appendChild(div) | |
| } | |
| function randomizeRow(rowDiv) { | |
| for (let i = 0; i < rowDiv.childNodes.length; i++) { | |
| let div = rowDiv.childNodes[i] | |
| div.classList | |
| .add(randomBinary() ? 'active' : 'inactive') | |
| } | |
| } | |
| randomizeRow(document.querySelector('.row')) | |
| function duplicateRow() { | |
| let allRows = document.querySelectorAll('.row') | |
| let lastRow = allRows[allRows.length - 1] | |
| let clone = lastRow.cloneNode(true) | |
| document | |
| .querySelector('.automaton') | |
| .appendChild(clone) | |
| processRow(clone, lastRow) | |
| } | |
| function processRow(rowDiv, parentRowDiv) { | |
| for (let i = 0; i < rowDiv.childNodes.length; i++) { | |
| let target = rowDiv.childNodes[i] | |
| let prevSelf = parentRowDiv.childNodes[i] | |
| let leftSibling = | |
| prevSelf.previousElementSibling || | |
| parentRowDiv.childNodes[ | |
| parentRowDiv.childNodes.length - 1] | |
| let rightSibling = | |
| prevSelf.nextElementSibling || | |
| parentRowDiv.childNodes[0] | |
| let toggleClass = setActiveIfMatchesRule | |
| .bind( | |
| null, | |
| target, | |
| leftSibling, | |
| prevSelf, | |
| rightSibling | |
| ) | |
| toggleClass([1,1,1], false) | |
| toggleClass([1,1,0], true) | |
| toggleClass([1,0,1], false) | |
| toggleClass([1,0,0], false) | |
| toggleClass([0,1,1], true) | |
| toggleClass([0,1,0], false) | |
| toggleClass([0,0,1], false) | |
| toggleClass([0,0,0], true) | |
| } | |
| } | |
| function setActiveIfMatchesRule( | |
| target, | |
| leftSibling, | |
| prevSelf, | |
| rightSibling, | |
| rule, | |
| ruleValue | |
| ) { | |
| let matchesRule = | |
| state(leftSibling) === rule[0] && | |
| state(prevSelf) === rule[1] && | |
| state(rightSibling) === rule[2] | |
| if(matchesRule) | |
| setIsActive(target, ruleValue) | |
| } | |
| function state(cellDiv) { | |
| return cellDiv.classList.contains('active') ? 1 : 0 | |
| } | |
| function setIsActive(cellDiv, isActive) { | |
| if (!!isActive) { | |
| cellDiv.classList.remove('inactive') | |
| cellDiv.classList.add('active') | |
| } else { | |
| cellDiv.classList.remove('active') | |
| cellDiv.classList.add('inactive') | |
| } | |
| } | |
| setInterval(duplicateRow, 100) | |
| </script> | |
| </body> | |
| </html> |
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