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121 lines
3.5 KiB
121 lines
3.5 KiB
/**
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*
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*/
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var InsertionSort = function() {
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var _this = this;
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this.ui = {
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presort: function presort(arr) {
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_this
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.instruct(Itemgroup.background, 1, 0, 0, arr.length, Visualizer.bg0)
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.instruct(Itemgroup.message, 0, 0, 1, `Comparisons: ${_this.comparisons}`)
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.instruct(Itemgroup.message, 0, 0, 2, `Swaps: ${_this.swaps}`)
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.instruct(Itemgroup.message, 0, 0, 3, ``)
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.instruct(Itemgroup.message, 0, 0, 4, ``)
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.instruct(Itemgroup.message, 0, 100, 5, `Starting sort.`)
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},
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//
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midsort: function midsort(arr, i, j) {
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_this
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.instruct(Itemgroup.background, 1, 0, 0, arr.length, Visualizer.bg0)
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.instruct(Itemgroup.background, 1, 0, j, j, Visualizer.bg1)
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.instruct(Itemgroup.background, 1, 0, (j - 1), (j - 1), Visualizer.bg1)
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.instruct(Itemgroup.message, 0, 0, 1, `Comparisons: ${_this.comparisons}`)
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.instruct(Itemgroup.message, 0, 0, 4, `Comparing [${j - 1}] and [${j}]`)
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.instruct(Itemgroup.message, 0, 100, 5, ``)
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},
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//
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swap: function swap(arr, j) {
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_this
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.instruct(Itemgroup.message, 0, 0, 2, `Swaps: ${_this.swaps}`)
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.instruct(Itemgroup.message, 0, 0, 5, `${arr[j]} < ${arr[j - 1]}, swapped.`)
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.instruct(Itemgroup.swap, 1, 300, j - 1, j)
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if (j - 1 > 0) {
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_this.instruct(Itemgroup.message, 0, 0, 3, `Continuing downstream...`)
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}
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else {
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_this.instruct(Itemgroup.message, 0, 0, 3, ``)
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}
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},
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//
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postsort: function postsort(arr) {
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_this
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.instruct(Itemgroup.background, 1, 0, 0, arr.length, Visualizer.bg0)
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.instruct(Itemgroup.message, 0, 0, 1, `Comparisons: ${_this.comparisons}`)
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.instruct(Itemgroup.message, 0, 0, 2, `Swaps: ${_this.swaps}`)
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.instruct(Itemgroup.message, 0, 0, 3, ``)
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.instruct(Itemgroup.message, 0, 0, 4, ``)
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.instruct(Itemgroup.message, 0, 100, 5, `Sorting complete.`)
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},
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};
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};
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InsertionSort.prototype = Object.create(Sorter.prototype);
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/**
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*
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*/
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InsertionSort.prototype.init = function() {
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var len = this.shuffled.length;
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this.actions = [];
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this.swaps = 0;
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this.comparisons = 0;
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this
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.instruct(Itemgroup.items, 0, 0, len)
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.instruct(Itemgroup.items, 1, 0, len)
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.instruct(Itemgroup.items, 2, 0, len)
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for (var i = 0; i < len; i++) {
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this.instruct(Itemgroup.text, 1, 0, i, this.shuffled[i]);
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}
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this
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.instruct(Itemgroup.foreground, 1, 0, 0, len, Visualizer.fg0)
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.instruct(Itemgroup.background, 1, 0, 0, len, Visualizer.bg0)
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.instruct(Itemgroup.opacity, 0, 0, 0, len, 0)
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.instruct(Itemgroup.opacity, 2, 0, 0, len, 0)
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};
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/**
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*
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*/
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InsertionSort.prototype.sort = function(arr) {
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var len = arr.length;
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var i;
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var j;
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var tmp;
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this.ui.presort(arr);
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for (i = 0; i < len; i++) {
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for (j = i; j > 0; j--) {
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this.comparisons++;
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this.ui.midsort(arr, i, j);
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if (arr[j - 1] > arr[j]) {
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this.swaps++;
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tmp = arr[j - 1];
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arr[j - 1] = arr[j];
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arr[j] = tmp;
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this.ui.swap(arr, j);
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}
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else {
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break;
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}
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}
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}
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this.ui.postsort(arr);
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return arr;
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};
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