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
|
let height = 10
let width = 10
let mine_rate = 0.10
let current_time = undefined
let interval = undefined
let mines = []
let visited = []
let running = false
function isValidPos(y, x) {
return y >= 0 && y < height && x >= 0 && x < width
}
function* neighboursGenerator(y, x) {
for (let i = -1; i <= 1; i++) {
for (let j = -1; j <= 1; j++) {
if (i === 0 && j === 0)
continue
let ret = [y + i, x + j]
if (!isValidPos(...ret))
continue
yield ret
}
}
}
let cells = []
function floodFill(y, x) {
visited[y][x] = true
let cell = cells[y][x]
cell.classList.add("visited")
if (mines[y][x] !== 0)
cell.textContent = mines[y][x]
switch (mines[y][x]) {
case 1: cell.style.color = "blue"; break
case 2: cell.style.color = "green"; break
case 3: cell.style.color = "red"; break
case 4: cell.style.color = "darkblue"; break
case 5: cell.style.color = "brown"; break
case 6: cell.style.color = "cyan"; break
case 7: cell.style.color = "black"; break
case 8: cell.style.color = "grey"; break
}
if (mines[y][x] !== 0)
return
for (let [ny, nx] of neighboursGenerator(y, x))
if (!visited[ny][nx])
floodFill(ny, nx)
}
function initGrid() {
let table = document.getElementById("minesweeper-table")
table.innerHTML = ""
width = document.getElementById("minesweeper-width").value
height = document.getElementById("minesweeper-height").value
mine_rate = document.getElementById("minesweeper-mine-rate").value / 100
mines = []
visited = []
cells = []
for (let i = 0; i < height; i++) {
mines.push(new Array(width))
visited.push(new Array(width))
for (let j = 0; j < width; j++) {
mines[i][j] = Math.random() < mine_rate ? -1 : 0;
visited[i][j] = false;
}
}
// count neighbour mines
for (let i = 0; i < height; i++) {
for (let j = 0; j < width; j++) {
if (mines[i][j] === -1)
continue
mines[i][j] =
[...neighboursGenerator(i, j)]
.filter(([y, x]) => mines[y][x] === -1)
.length
}
}
for (let i = 0; i < height; i++) {
cells.push([])
let table_row = document.createElement("tr")
for (let j = 0; j < width; j++) {
let table_cell = document.createElement("td")
let cell = document.createElement("button")
cell.textContent = ""
cell.addEventListener("click", () => {
if (!running)
toggleRunning()
if (mines[i][j] === -1)
toggleRunning()
else
floodFill(i, j)
})
cells[i].push(cell)
table_cell.appendChild(cell)
table_row.appendChild(table_cell)
}
table.appendChild(table_row)
}
}
for (input of document.querySelectorAll("#minesweeper-settings input")) {
input.addEventListener("input", () => initGrid())
}
function toggleRunning() {
if (running) {
clearInterval(interval)
initGrid()
}
else {
let timer_elem = document.getElementById("minesweeper-timer")
current_time = 0
timer_elem.textContent = current_time
interval = setInterval(() => {
timer_elem.textContent = current_time
current_time++
}, 1000)
}
running = !running
let settings = document.getElementById("minesweeper-settings")
let info = document.getElementById("minesweeper-game-info")
settings.hidden = !settings.hidden
info.hidden = !info.hidden
}
document.getElementById("minesweeper-stop") .addEventListener("click", toggleRunning)
initGrid()
|
