From daf09a1413e2f4ddab3394fb087bafc228d57145 Mon Sep 17 00:00:00 2001
From: Daniel <you@example.com>
Date: Wed, 18 Sep 2024 22:02:48 +0200
Subject: [PATCH] implemented MergeSort
---
Dockerfile | 3 +-
docker-compose.yml | 5 +-
src/MergeSort.js | 122 ++++++++++++++++++++++++++++++++++++++
src/SortingVisualizer.css | 27 +++++++--
src/SortingVisualizer.jsx | 45 +++++++++++---
5 files changed, 187 insertions(+), 15 deletions(-)
create mode 100644 src/MergeSort.js
diff --git a/Dockerfile b/Dockerfile
index c97b2e1..2e7e291 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,6 +18,7 @@ COPY vite.config.js .
# port 5173
EXPOSE 5173
+EXPOSE 9229
#Start
-CMD ["npm", "run", "dev", "--", "--host"]
+CMD ["npm", "run", "dev", "--", "--host", "$DEBUG_FLAG"]
diff --git a/docker-compose.yml b/docker-compose.yml
index ba7c89f..fe4480d 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -4,13 +4,16 @@ services:
container_name: Sorting-Visualizer
ports:
- 127.0.0.1:5173:5173
+ - 127.0.0.1:9229:9229
+
volumes:
- ./src/:/app/sorting-visualizer/src/
- ./package-lock.json:/app/sorting-visualizer/package-lock.json
- ./package.json:/app/sorting-visualizer/package.json
networks:
- my-network
-
+ environment:
+ DEBUG_FLAG: "--inspect=0.0.0.0:9229"
networks:
my-network:
driver: bridge
diff --git a/src/MergeSort.js b/src/MergeSort.js
new file mode 100644
index 0000000..2c935a1
--- /dev/null
+++ b/src/MergeSort.js
@@ -0,0 +1,122 @@
+async function MergeSort(EingangsArray, startIdx, endIdx, arrayCopy, updateBars, setColor, sortSpeed) {
+ if (startIdx >= endIdx) return;
+
+ // Split array
+ const cuttingEdge = Math.floor((startIdx + endIdx) / 2);
+
+ // Recursively sort both halves
+ await MergeSort(EingangsArray, startIdx, cuttingEdge, arrayCopy, updateBars, setColor, sortSpeed);
+ await MergeSort(EingangsArray, cuttingEdge + 1, endIdx, arrayCopy, updateBars, setColor, sortSpeed);
+
+ // Merge halves back togeteher
+ await merge(EingangsArray, startIdx, cuttingEdge, endIdx, arrayCopy, updateBars, setColor, sortSpeed);
+}
+
+async function merge(EingangsArray, startIdx, middleIdx, endIdx, arrayCopy, updateBars, setColor, sortSpeed) {
+ let i = startIdx;
+ let j = middleIdx + 1;
+ let k = startIdx;
+ const bars = document.querySelectorAll('.bar'); // get all bars
+ const sortSpeedSwitch = Number(sortSpeed);
+
+
+ // index exist?
+ const isValidIndex = (index) => index >= 0 && index < bars.length;
+
+ // Merge halves back togeteher
+ while (i <= middleIdx && j <= endIdx) {
+ if (isValidIndex(i) && isValidIndex(j)) {
+ // Change color of compared bars
+ bars[i].style.backgroundColor = 'red';
+ bars[j].style.backgroundColor = 'red';
+ }
+
+ switch (sortSpeedSwitch) {
+ case 0:
+ break; // No delay
+ case 40:
+ await new Promise(resolve => setTimeout(resolve, 90));
+ break;
+ case 100:
+ await new Promise(resolve => setTimeout(resolve, 200));
+ break;
+ }
+ if (EingangsArray[i] <= EingangsArray[j]) {
+ arrayCopy[k] = EingangsArray[i];
+ i++;
+ } else {
+ arrayCopy[k] = EingangsArray[j];
+ j++;
+ }
+
+ // Update Array
+ await updateArrayState(EingangsArray, arrayCopy, startIdx, endIdx, updateBars, sortSpeed);
+ if (isValidIndex(i - 1)) bars[i - 1].style.backgroundColor = ''; // default colr
+ if (isValidIndex(j - 1)) bars[j - 1].style.backgroundColor = '';
+
+ k++;
+ }
+
+ // Copy from the LEFT half
+ while (i <= middleIdx) {
+ switch (sortSpeedSwitch) {
+ case 0:
+ break; // No delay
+ case 40:
+ await new Promise(resolve => setTimeout(resolve, 90));
+ break;
+ case 100:
+ await new Promise(resolve => setTimeout(resolve, 200));
+ break;
+ }
+
+ arrayCopy[k] = EingangsArray[i];
+ await updateArrayState(EingangsArray, arrayCopy, startIdx, endIdx, updateBars, sortSpeed);
+ if (isValidIndex(i)) bars[i].style.backgroundColor = '';
+
+ i++;
+ k++;
+ }
+
+ // Copy from the RIGHT half
+ while (j <= endIdx) {
+ switch (sortSpeedSwitch) {
+ case 0:
+ break; // No delay
+ case 40:
+ await new Promise(resolve => setTimeout(resolve, 90));
+ break;
+ case 100:
+ await new Promise(resolve => setTimeout(resolve, 200));
+ break;
+ }
+
+ arrayCopy[k] = EingangsArray[j];
+ await updateArrayState(EingangsArray, arrayCopy, startIdx, endIdx, updateBars, sortSpeed);
+ if (isValidIndex(j)) bars[j].style.backgroundColor = '';
+
+ j++;
+ k++;
+ }
+
+ // Copy merged values back
+ for (let i = startIdx; i <= endIdx; i++) {
+ EingangsArray[i] = arrayCopy[i];
+ }
+
+ // adding to class 'finished'
+ if (endIdx - startIdx + 1 === EingangsArray.length) {
+ setColor(0);
+ }
+}
+
+async function updateArrayState(EingangsArray, arrayCopy, startIdx, endIdx, updateBars, sortSpeed) {
+ updateBars([...arrayCopy]);
+ await new Promise(resolve => setTimeout(resolve, sortSpeed));
+}
+
+export default async function startMergeSort(EingangsArray, updateBars, setFinish, sortSpeed) {
+ const arrayCopy = [...EingangsArray];
+
+ await MergeSort(EingangsArray, 0, EingangsArray.length - 1, arrayCopy, updateBars, setFinish, sortSpeed);
+}
diff --git a/src/SortingVisualizer.css b/src/SortingVisualizer.css
index 991362a..91b9266 100644
--- a/src/SortingVisualizer.css
+++ b/src/SortingVisualizer.css
@@ -15,6 +15,9 @@ body {
height: 100px;
flex: 1 1 20px;
min-width: 2px;
+ margin: 0px;
+ transform-origin: bottom;
+
}
.sorted {
@@ -75,13 +78,20 @@ button:active {
}
.DivArray {
- transform: scaleY(-1);
display: flex;
+ position: absolute;
+ position: fixed;
flex-wrap: nowrap;
justify-content: center;
gap: 2px;
width: 90%;
- margin-top: 5px;
+ margin-top: 60px;
+ align-items: flex-end;
+ overflow: hidden;
+ height: 400px;
+/
+
+
}
#dropdown-menu {
@@ -91,7 +101,6 @@ button:active {
margin-top: 3px;
}
-
#dropdown-item {
color: white;
font-size: 16px;
@@ -115,7 +124,6 @@ button:active {
height: 100%;
display: flex;
place-items: center;
- margin-inline: 10px;
justify-content: center;
width: 195px;
transition: none;
@@ -135,6 +143,17 @@ button:active {
color: white;
}
+.Divider {
+ background: gray;
+ height: 70%;
+ margin-left: 8px;
+ margin-right: 3px;
+ width: 2px;
+}
+
+#dividerLeft {
+ margin-right: 8px;
+}
@keyframes ScaleAnimation {
0% {
diff --git a/src/SortingVisualizer.jsx b/src/SortingVisualizer.jsx
index 4521e25..6fe070a 100644
--- a/src/SortingVisualizer.jsx
+++ b/src/SortingVisualizer.jsx
@@ -1,6 +1,7 @@
import {useState, useEffect} from 'react';
import './SortingVisualizer.css'
import BubbleSort from "./BubbleSort";
+import startMergeSort from "./MergeSort.js";
import RangeSlider from 'react-bootstrap-range-slider';
import 'react-bootstrap-range-slider/dist/react-bootstrap-range-slider.css';
import {Dropdown} from 'react-bootstrap';
@@ -13,9 +14,10 @@ function SortingVisualizer() {
const [BarNumber, setBarNumber] = useState(() => monitorSize > 100 ? 100 : monitorSize); // max of 100 bars
const [bars, setbars] = useState(() => generateArray(BarNumber));
const [sorting, setSorting] = useState(false);
- const [alreadySorted, setAlreadySorted] = useState();
+ const [alreadySorted, setColor] = useState();
const [isSorted, setIsSorted] = useState(false);
const [sortSpeed, setSortSpeed] = useState('40');
+ const [Algo, setAlgo] = useState('BubbleSort');
const SliderWithInputFormControl = () => {
const [sliderValue_intern, setSliderValue_intern] = useState(BarNumber);
@@ -41,18 +43,22 @@ function SortingVisualizer() {
}
function generateArray(numberBars) {
- return Array.from({length: numberBars}, () => getRandomArbitrary(50, 300));
+ return Array.from({length: numberBars}, () => getRandomArbitrary(20, 400));
}
async function handleSorting() {
if (sorting) return;
setSorting(true);
- await BubbleSort(bars, setbars, setAlreadySorted, sortSpeed);
+ if (Algo == 'BubbleSort') {
+ await BubbleSort(bars, setbars, setColor, sortSpeed);
+ } else if (Algo == 'MergeSort') {
+ await startMergeSort(bars, setbars, setColor, sortSpeed);
+ }
setSorting(false);
}
function resetBars() {
- setAlreadySorted(1000);
+ setColor(1000);
setbars(generateArray(BarNumber));
let ColoredBars = document.getElementsByClassName('sorted');
document.getElementById('startButton').innerText = 'Sort!';
@@ -73,7 +79,7 @@ function SortingVisualizer() {
function handleButton() {
if (!sorting && !isSorted) {
- setAlreadySorted(1000);
+ setColor(1000);
handleSorting();
} else if (isSorted) {
resetBars();
@@ -106,14 +112,15 @@ function SortingVisualizer() {
value={BarNumber} style={{
width: '42px',
fontfamily: 'Arial sans-serif',
- fontSize:'16px',
- margin: '10px',
+ fontSize: '16px',
+ marginLeft: '10px',
+ marginRight: '5px',
borderRadius: '5px',
border: 'none',
textAlign: 'center'
}}/>
- <div style={{background: 'gray', height: '70%', marginLeft: '10px', width: '2px'}}></div>
- <Dropdown id="dropdown">
+ <div id="dividerLeft" className="Divider"></div>
+ <Dropdown id="dropdown" className="dropdown-wide">
<Dropdown.Toggle
id="dropdown"
disabled={sorting}
@@ -138,6 +145,26 @@ function SortingVisualizer() {
</Dropdown.Item>
</Dropdown.Menu>
</Dropdown>
+ <div className="Divider"></div>
+ <Dropdown id="dropdown">
+ <Dropdown.Toggle
+ id="dropdown"
+ disabled={sorting}
+ >
+ Algorithm: {
+ [Algo]
+ }
+ </Dropdown.Toggle>
+ <Dropdown.Menu id="dropdown-menu">
+ <Dropdown.Item id="dropdown-item" onClick={() => setAlgo('BubbleSort')}>
+ BubbleSort
+ </Dropdown.Item>
+ <Dropdown.Item id="dropdown-item" onClick={() => setAlgo('MergeSort')}>
+ MergeSort
+ </Dropdown.Item>
+ </Dropdown.Menu>
+ </Dropdown>
+
<button id='startButton' className="Button" disabled={sorting}
style={{background: `${sorting ? 'red' : ''}`}} onClick={() => {
handleButton()
--
GitLab