Last active
June 11, 2020 09:53
-
-
Save galElmalah/a227a2b12557d4c799adfc2a57e4a422 to your computer and use it in GitHub Desktop.
putting it all together
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
const canvas = document.querySelector("canvas"); | |
canvas.height = window.innerHeight; | |
canvas.width = window.innerWidth; | |
const ctx = canvas.getContext("2d"); | |
const ACTIONS = { | |
SORT: "SORT", | |
COMPARE: "COMPARE", | |
SWAP: "SWAP", | |
}; | |
const actionsMap = { | |
[ACTIONS.SORT]: (action, members) => members[action.data].sorted(), | |
[ACTIONS.SWAP]: (action, members) => { | |
const [i, j] = action.data; | |
let tmp = members[i].getValue(); | |
members[i].setValue(members[j].getValue(), "red"); | |
members[j].setValue(tmp, "yellow"); | |
}, | |
[ACTIONS.COMPARE]: (action, members) => { | |
const [i, j] = action.data; | |
members[i].setColor("blue"); | |
members[j].setColor("blue"); | |
}, | |
}; | |
const shuffledArrayInRange = (bottom = 1, top = 30) => { | |
const arr = []; | |
for (let i = bottom; i < top; i++) arr.push(i); | |
return arr.sort((a, b) => (Math.random() > 0.5 ? 1 : -1)); | |
}; | |
const bubbleSort = (array, onAction) => { | |
for (let i = 0; i < array.length; i++) { | |
for (let j = 0; j < array.length; j++) { | |
onAction({ type: ACTIONS.COMPARE, data: [j, j + 1] }); | |
if (array[j] > array[j + 1]) { | |
let tmp = array[j]; | |
array[j] = array[j + 1]; | |
array[j + 1] = tmp; | |
onAction({ type: ACTIONS.SWAP, data: [j, j + 1] }); | |
} | |
} | |
onAction({ type: ACTIONS.SORT, data: array.length - i - 1 }); | |
} | |
return array; | |
}; | |
function ArrayMember(x, y, width, height, color = "gray") { | |
this.x = x; | |
this.y = y; | |
this.width = width; | |
this.height = height; | |
this.color = color; | |
this.draw = () => { | |
ctx.fillStyle = this.color; | |
ctx.fillRect(this.x, this.y, this.width, this.height); | |
}; | |
this.resetColor = () => this.setColor("gray"); | |
this.setColor = (color) => { | |
if (!this.isSorted()) { | |
this.color = color; | |
} | |
}; | |
this.isSorted = () => this.color === "green"; | |
this.sorted = () => (this.color = "green"); | |
this.setValue = (v, color) => { | |
if (!this.isSorted()) { | |
this.height = v; | |
this.setColor(color); | |
} | |
}; | |
this.getValue = (v) => this.height; | |
} | |
const randomArray = shuffledArrayInRange(); | |
const arrayMembers = randomArray.map((v, i) => { | |
return new ArrayMember(10 * i + i, 0, 10, v * 5); | |
}); | |
const drawAll = () => arrayMembers.forEach((m) => m.draw()); | |
drawAll(); | |
let ticks = 0; | |
const speed = 50; | |
bubbleSort(randomArray, (action) => { | |
ticks++; | |
setTimeout(() => { | |
actionsMap[action.type](action, arrayMembers); | |
ctx.clearRect(0, 0, innerWidth, innerHeight); | |
drawAll(arrayMembers); | |
arrayMembers.forEach((m) => m.resetColor()); | |
}, ticks * speed); | |
}); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment