-
-
Notifications
You must be signed in to change notification settings - Fork 1
/
script.js
238 lines (208 loc) · 8.53 KB
/
script.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
document.addEventListener('DOMContentLoaded', () => {
const gridDisplay = document.querySelector('.grid')
const scoreDisplay = document.getElementById('score')
const resultDisplay = document.getElementById('result')
let squares = []
const width = 4
let score = 0
//create the playing board
function createBoard() {
for (let i=0; i < width*width; i++) {
square = document.createElement('div')
square.innerHTML = 0
gridDisplay.appendChild(square)
squares.push(square)
}
generate()
generate()
}
createBoard()
//generate a new number
function generate() {
randomNumber = Math.floor(Math.random() * squares.length)
if (squares[randomNumber].innerHTML == 0) {
squares[randomNumber].innerHTML = 2
checkForGameOver()
} else generate()
}
function moveRight() {
for (let i=0; i < 16; i++) {
if (i % 4 === 0) {
let totalOne = squares[i].innerHTML
let totalTwo = squares[i+1].innerHTML
let totalThree = squares[i+2].innerHTML
let totalFour = squares[i+3].innerHTML
let row = [parseInt(totalOne), parseInt(totalTwo), parseInt(totalThree), parseInt(totalFour)]
let filteredRow = row.filter(num => num)
let missing = 4 - filteredRow.length
let zeros = Array(missing).fill(0)
let newRow = zeros.concat(filteredRow)
squares[i].innerHTML = newRow[0]
squares[i +1].innerHTML = newRow[1]
squares[i +2].innerHTML = newRow[2]
squares[i +3].innerHTML = newRow[3]
}
}
}
function moveLeft() {
for (let i=0; i < 16; i++) {
if (i % 4 === 0) {
let totalOne = squares[i].innerHTML
let totalTwo = squares[i+1].innerHTML
let totalThree = squares[i+2].innerHTML
let totalFour = squares[i+3].innerHTML
let row = [parseInt(totalOne), parseInt(totalTwo), parseInt(totalThree), parseInt(totalFour)]
let filteredRow = row.filter(num => num)
let missing = 4 - filteredRow.length
let zeros = Array(missing).fill(0)
let newRow = filteredRow.concat(zeros)
squares[i].innerHTML = newRow[0]
squares[i +1].innerHTML = newRow[1]
squares[i +2].innerHTML = newRow[2]
squares[i +3].innerHTML = newRow[3]
}
}
}
function moveUp() {
for (let i=0; i < 4; i++) {
let totalOne = squares[i].innerHTML
let totalTwo = squares[i+width].innerHTML
let totalThree = squares[i+(width*2)].innerHTML
let totalFour = squares[i+(width*3)].innerHTML
let column = [parseInt(totalOne), parseInt(totalTwo), parseInt(totalThree), parseInt(totalFour)]
let filteredColumn = column.filter(num => num)
let missing = 4 - filteredColumn.length
let zeros = Array(missing).fill(0)
let newColumn = filteredColumn.concat(zeros)
squares[i].innerHTML = newColumn[0]
squares[i +width].innerHTML = newColumn[1]
squares[i+(width*2)].innerHTML = newColumn[2]
squares[i+(width*3)].innerHTML = newColumn[3]
}
}
function moveDown() {
for (let i=0; i < 4; i++) {
let totalOne = squares[i].innerHTML
let totalTwo = squares[i+width].innerHTML
let totalThree = squares[i+(width*2)].innerHTML
let totalFour = squares[i+(width*3)].innerHTML
let column = [parseInt(totalOne), parseInt(totalTwo), parseInt(totalThree), parseInt(totalFour)]
let filteredColumn = column.filter(num => num)
let missing = 4 - filteredColumn.length
let zeros = Array(missing).fill(0)
let newColumn = zeros.concat(filteredColumn)
squares[i].innerHTML = newColumn[0]
squares[i +width].innerHTML = newColumn[1]
squares[i+(width*2)].innerHTML = newColumn[2]
squares[i+(width*3)].innerHTML = newColumn[3]
}
}
function combineRow() {
for (let i =0; i < 15; i++) {
if (squares[i].innerHTML === squares[i +1].innerHTML) {
let combinedTotal = parseInt(squares[i].innerHTML) + parseInt(squares[i +1].innerHTML)
squares[i].innerHTML = combinedTotal
squares[i +1].innerHTML = 0
score += combinedTotal
scoreDisplay.innerHTML = score
}
}
checkForWin()
}
function combineColumn() {
for (let i =0; i < 12; i++) {
if (squares[i].innerHTML === squares[i +width].innerHTML) {
let combinedTotal = parseInt(squares[i].innerHTML) + parseInt(squares[i +width].innerHTML)
squares[i].innerHTML = combinedTotal
squares[i +width].innerHTML = 0
score += combinedTotal
scoreDisplay.innerHTML = score
}
}
checkForWin()
}
//assign functions to keyCodes
function control(e) {
if(e.keyCode === 37) {
keyLeft()
} else if (e.keyCode === 38) {
keyUp()
} else if (e.keyCode === 39) {
keyRight()
} else if (e.keyCode === 40) {
keyDown()
}
}
document.addEventListener('keyup', control)
function keyRight() {
moveRight()
combineRow()
moveRight()
generate()
}
function keyLeft() {
moveLeft()
combineRow()
moveLeft()
generate()
}
function keyUp() {
moveUp()
combineColumn()
moveUp()
generate()
}
function keyDown() {
moveDown()
combineColumn()
moveDown()
generate()
}
//check for the number 2048 in the squares to win
function checkForWin() {
for (let i=0; i < squares.length; i++) {
if (squares[i].innerHTML == 2048) {
resultDisplay.innerHTML = 'You WIN'
document.removeEventListener('keyup', control)
setTimeout(() => clear(), 3000)
}
}
}
//check if there are no zeros on the board to lose
function checkForGameOver() {
let zeros = 0
for (let i=0; i < squares.length; i++) {
if (squares[i].innerHTML == 0) {
zeros++
}
}
if (zeros === 0) {
resultDisplay.innerHTML = 'You LOSE'
document.removeEventListener('keyup', control)
setTimeout(() => clear(), 3000)
}
}
//clear timer
function clear() {
clearInterval(myTimer)
}
//add colours
function addColours() {
for (let i=0; i < squares.length; i++) {
if (squares[i].innerHTML == 0) squares[i].style.backgroundColor = '#afa192'
else if (squares[i].innerHTML == 2) squares[i].style.backgroundColor = '#eee4da'
else if (squares[i].innerHTML == 4) squares[i].style.backgroundColor = '#ede0c8'
else if (squares[i].innerHTML == 8) squares[i].style.backgroundColor = '#f2b179'
else if (squares[i].innerHTML == 16) squares[i].style.backgroundColor = '#ffcea4'
else if (squares[i].innerHTML == 32) squares[i].style.backgroundColor = '#e8c064'
else if (squares[i].innerHTML == 64) squares[i].style.backgroundColor = '#ffab6e'
else if (squares[i].innerHTML == 128) squares[i].style.backgroundColor = '#fd9982'
else if (squares[i].innerHTML == 256) squares[i].style.backgroundColor = '#ead79c'
else if (squares[i].innerHTML == 512) squares[i].style.backgroundColor = '#76daff'
else if (squares[i].innerHTML == 1024) squares[i].style.backgroundColor = '#beeaa5'
else if (squares[i].innerHTML == 2048) squares[i].style.backgroundColor = '#d7d4f0'
}
}
addColours()
var myTimer = setInterval(addColours, 50)
})