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index.html
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<html>
<head>
<title>PixelCraft: A Pixel Art Editor</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta property="og:locale" content="en_US" />
<meta property="og:title" content="PixelCraft: A Pixel Art Editor" />
<meta property="og:description" content="A pixel Art & Animation Creation Tool Built using HTML5 Canvas. It is a Progressive Web App (PWA) with offline compatibility. It is mobile-friendly and is very easy to use." />
<meta name="keywords" content="PixelCraft, pixel-art" />
<meta name="news_keywords" content="PixelCraft, pixel-art" />
<meta name="language" content="English">
<meta property="og:url" content="https://rgab1508.github.io/PixelCraft/" />
<meta property="og:site_name" content="PixelCraft" />
<meta property="article:tag" content="PixelCraft" />
<meta property="article:tag" content="pixel-art" />
<meta property="article:published_time" content="2020-04-22T08:34:48+00:00" />
<meta property="article:modified_time" content="2020-04-22T08:34:51+00:00" />
<meta property="og:updated_time" content="2020-04-22T08:34:51+00:00" />
<meta property="og:image" content="https://rgab1508.github.io/PixelCraft/images/overview.png" />
<meta property="og:image:secure_url" content="https://rgab1508.github.io/PixelCraft/images/overview.png" />
<meta property="og:image:width" content="600" />
<meta property="og:image:height" content="445" />
<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:description" content="A pixel Art & Animation Creation Tool Built using HTML5 Canvas. It is a Progressive Web App (PWA) with offline compatibility. It is mobile-friendly and is very easy to use." />
<meta name="twitter:title" content="PixelCraft: A Pixel Art Editor" />
<meta name="twitter:image" content="https://rgab1508.github.io/PixelCraft/images/overview.png" />
<link rel="shortcut icon" type="image/png" href="icons/logo.png"/>
<link rel="manifest" href="manifest.json">
<script src="https://kit.fontawesome.com/473e8f3a80.js" crossorigin="anonymous"></script>
<script src="lib/Matrix.js" async></script>
<script src="lib/Shapes.js" async></script>
<script src="lib/Transformation.js" async></script>
<script src="lib/gif.js"></script>
<style>
@font-face {
font-family: 'Martel Sans';
font-style: normal;
font-weight: 400;
font-display: swap;
src: local('Martel Sans Regular'), local('MartelSans-Regular'), url(https://fonts.gstatic.com/s/martelsans/v6/h0GsssGi7VdzDgKjM-4d8hjYx-4.woff2) format('woff2');
unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
* {
font-family: 'Martel Sans', sans-serif;
}
body {
background-color: #232125;
margin: 0px;
}
#popup, #frames {
background-color: #332f35;
color: white;
font-size: 20px;
padding: 30px;
box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.5);
position: fixed;
left: 50%;
top: 50%;
transform: translate(-50%, -50%) scale(0.1, 0.1);
text-align: center;
max-width: 420px;
width: 70%;
transition: 0.2s all;
z-index: 2;
border-radius: 5px;
}
#popup {
display: none;
}
#popup h3 {
line-height: 30px;
}
#frames {
display: none;
padding: 10px;
}
#frames #gallery {
padding: 10px 10px 10px 10px;
overflow: hidden;
white-space: nowrap;
scroll-behavior: smooth;
}
#frames .btn {
position: absolute;
background-color: rgba(255,255,255,0.5);
color: black;
font-size: 20px;
padding: 10px;
top: 50%;
transform: translateY(-50%);
border-radius: 50%;
z-index: 2;
box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.5);
}
#frames img {
width: 100px;
margin: 10px;
}
#width,
#height {
background-color: #262327;
color: white;
margin: 10px;
padding: 5px;
font-size: 14px;
font-weight: bolder;
border: none;
border-radius: 3px;
max-width: 60px;
}
#close {
background-color: #262327;
color: white;
margin: 15px auto 5px auto;
padding: 5px 10px 5px 10px;
font-size: 18px;
font-weight: bolder;
display: block;
border: none;
border-radius: 3px;
max-width: 60px;
transition: 0.2s all;
}
#close:hover {
box-shadow: 0px 0px 3px 0px rgba(0, 0, 0, 0.5);
}
#canvas {
box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.5);
position: fixed;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
width: 75%;
max-width: 550px;
display: none;
cursor: crosshair;
touch-action: none;
image-rendering: -moz-crisp-edges;
image-rendering: -webkit-crisp-edges;
image-rendering: pixelated;
image-rendering: crisp-edges;
}
#toolbar {
position: fixed;
top: 50%;
left: 0%;
transform: translateY(-50%);
padding: 0px;
color: white;
max-width: 150px;
}
#toolbar .item {
display: inline-block;
float: left;
padding: 15px;
border: 1px solid #FFF;
cursor: pointer;
height: 32px;
width: 32px;
font-family: Arial, FontAwesome;
font-size: 24px;
}
#palette {
position: fixed;
top: 50%;
right: 0%;
transform: translateY(-50%);
padding: 0px;
color: white;
max-width: 100px;
}
#palette .item {
display: inline-block;
float: left;
padding: 25px;
cursor: pointer;
}
path {
fill: white;
}
.item:hover {
background-color: grey;
}
.menubtn {
position: fixed;
left: 20px;
top: 20px;
box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.5);
background-color: #332f35;
color: white;
padding: 5px 15px 5px 15px;
border-radius: 5px;
font-size: 25px;
font-weight: bolder;
cursor: pointer;
z-index: 3;
}
.menu {
position: fixed;
top: 70px;
left: 20px;
border-radius: 5px;
padding: 0px;
color: white;
z-index: 3;
display: none;
}
.menu li {
padding: 5px 20px 5px 20px;
list-style: none;
background-color: #332f35;
cursor: pointer;
}
.menu li i {
padding-right: 10px;
}
.menu li a {
text-decoration: none;
color: white;
}
@media only screen and (max-width: 600px) {
#toolbar {
position: fixed;
top: 100%;
left: 50%;
min-width: 100%;
transform: translate(-50%, -100%);
padding: 0px;
color: white;
}
#palette {
position: fixed;
top: 0%;
transform: translateY(0%);
min-width: 100%;
padding: 0px;
color: white;
}
#toolbar .item {
width: 20px;
height: 20px;
}
#palette .item {
padding: 15px;
}
.menubtn {
top:70px;
}
.menu {
top:110px;
}
}
</style>
</head>
<body>
<div class="menubtn">☰</div>
<ul class="menu">
<li onclick="newProject()">New</li>
<li onclick="board.save()">Save image</li>
<li onclick="board.renderGIF()">Save GIF</li>
<li onclick="install()">Install PWA</li>
<li><a href="https://github.com/rgab1508/PixelCraft" target="_blank"><i class="fab fa-github"></i>Github</a></li>
</ul>
<div id="popup">
<h3>Select the Dimensions Of the grid</h3>
<input type="text" id="width" value="16">X<input type="text" id="height" value="16">
<button id="close">OK</button>
</div>
<div id="frames" onblur="Frames.close()" tabindex="0">
<div class="btn" style="left: 10px;" onclick="document.querySelector('#frames #gallery').scrollLeft-=100;"><i class="fa fa-chevron-left"></i></div>
<div class="btn" style="right: 10px;" onclick="document.querySelector('#frames #gallery').scrollLeft+=100;"><i class="fa fa-chevron-right"></i></div>
<div id="gallery"></div>
</div>
</div>
<canvas id="canvas"></canvas>
<div id="toolbar">
<span class="item" onclick="board.setmode(0)" style="background-color: grey;"><i class="fas fa-pencil-alt"></i></span>
<span class="item" onclick="board.setmode(1)"><i class="fas fa-eraser"></i></span>
<span class="item" onclick="board.setmode(2)"><i class="fas fa-fill"></i></span>
<span class="item" onclick="board.setmode(3)"><i class="fas fa-slash"></i></span>
<span class="item" onclick="board.setmode(4)"><i class="far fa-circle"></i></span>
<span class="item" onclick="board.setmode(5)"><i class="far fa-circle" style="transform: rotateX(45deg);"></i></span>
<span class="item" onclick="board.addFrame()"><i class="fas fa-plus"></i></span>
<span class="item" onclick="board.undo()"><i class="fas fa-undo"></i></span>
<span class="item" onclick="board.redo()"><i class="fas fa-redo"></i></span>
<span class="item" onclick="board.clear()"><i class="fas fa-trash"></i></span>
<span class="item" onclick="board.addImage()"><i class="fa fa-upload"></i></span>
<span class="item" onclick="Frames.open()"><i class="fas fa-eye"></i></span>
</div>
<div id="palette"></div>
</body>
<script type="text/javascript">
var Tool = {
"pen": 0,
"eraser": 1,
"fillBucket": 2,
"line": 3,
"circle": 4,
"ellipse": 5,
"addFrame": 6,
"undo": 7,
"redo": 8,
"clearCanvas": 9
};
var tools = [true, false, false, false, false, false];
var lc = [];
class Canvas {
constructor(width, height) {
this.canvas = document.querySelector("#canvas");
this.canvas.width = 10 * width;
this.canvas.height = 10 * height;
this.width = width;
this.height = height;
this.canvas.style.display = "block";
this.canvas.style.height = Math.floor((height / width) * this.canvas.clientWidth) + "px";
this.w = +this.canvas.width;
this.h = +this.canvas.height;
this.ctx = this.canvas.getContext("2d");
this.ctx.fillStyle = "white";
this.ctx.globalAlpha = 1;
this.ctx.fillRect(0, 0, this.w, this.h);
this.data = [...Array(this.width)].map(e => Array(this.height).fill([255, 255, 255, 255]));
this.steps = [];
this.redo_arr = [];
this.frames = [];
this.canvas.addEventListener("click", e => {
var rect = this.canvas.getBoundingClientRect();
var x = e.clientX - rect.left;
var y = e.clientY - rect.top;
x = Math.floor(this.width * x / this.canvas.clientWidth);
y = Math.floor(this.height * y / this.canvas.clientHeight);
if (tools[Tool.fillBucket]) {
filler(x, y, this.data[x][y]);
} else if (tools[Tool.eraser]) {
var temp = this.color;
var tga = this.ctx.globalAlpha;
this.setcolor([255, 255, 255, 255]);
this.draw(x, y);
this.setcolor(temp);
this.ctx.globalAlpha = tga;
} else if (tools[Tool.line]) {
lc.push(new Point(x, y));
if (lc.length == 2) {
var lp = line(lc[0], lc[1]);
lc = [];
var p;
for (p of lp) this.draw(p.x, p.y);
}
} else if (tools[Tool.circle]) {
var centre = new Point(x, y);
var radius = +prompt("radius?");
var lp = circle(radius, centre);
var p;
for (p of lp) this.draw(p.x, p.y);
} else if (tools[Tool.ellipse]) {
var center = new Point(x, y);
var radiusX = +prompt("X radius?");
var radiusY = +prompt("Y radius?");
var lp = ellipse(radiusX, radiusY, center);
for (p of lp)
this.draw(p.x, p.y);
} else {
this.draw(x, y);
}
});
this.canvas.addEventListener("mousemove", e => {
if (this.active) {
var rect = this.canvas.getBoundingClientRect();
var x = e.clientX - rect.left;
var y = e.clientY - rect.top;
x = Math.floor(this.width * x / this.canvas.clientWidth);
y = Math.floor(this.height * y / this.canvas.clientHeight);
if(tools[Tool.pen]){
this.draw(x, y)
}
else if(tools[Tool.eraser]){
this.erase(x, y);
}
}
});
this.canvas.addEventListener("touchmove", e => {
var rect = this.canvas.getBoundingClientRect();
var x = e.touches[0].clientX - rect.left;
var y = e.touches[0].clientY - rect.top;
x = Math.floor(this.width * x / this.canvas.clientWidth);
y = Math.floor(this.height * y / this.canvas.clientHeight);
if(tools[Tool.pen]){
this.draw(x, y);
}
else if(tools[Tool.eraser]){
this.erase(x, y);
}
})
this.canvas.addEventListener("mousedown", e => {
this.active = true;
});
this.canvas.addEventListener("mouseup", e => {
this.active = false;
});
}
draw(x, y, count) {
if (x >= 0 && x < this.width && y >= 0 && y < this.height) {
this.data[x][y] = this.color;
this.ctx.fillRect(Math.floor(x * (this.w / this.width)), Math.floor(y * (this.h / this.height)), Math.floor(this.w / this.width), Math.floor(this.h / this.height));
if (!count && JSON.stringify(this.steps[this.steps.length-1])!==JSON.stringify([x,y,this.color,this.ctx.globalAlpha])) this.steps.push([x,y,this.color,this.ctx.globalAlpha]);
}
}
erase(x, y){
var temp = this.color;
var tga = this.ctx.globalAlpha;
this.setcolor([255, 255, 255, 255]);
this.draw(x, y);
this.setcolor(temp);
this.ctx.globalAlpha = tga;
}
setcolor(color) {
this.ctx.globalAlpha = 1;
this.color = color;
this.ctx.fillStyle = "rgba(" + color[0] + "," + color[1] + "," + color[2] + "," + color[3] + ")";
}
setmode(i) {
tools = [false, false, false, false, false, false];
tools[i] = true;
document.querySelectorAll("#toolbar .item").forEach((x, i) => {
if (tools[i]) x.style.backgroundColor = "grey";
else x.style.backgroundColor = "";
})
}
save() {
this.canvas.toBlob(function (blob) {
var url = URL.createObjectURL(blob);
var link = document.createElement('a');
link.download = 'canvas.png';
link.href = url;
link.click();
})
}
clear() {
this.ctx.fillStyle = "white";
this.ctx.fillRect(0, 0, this.w, this.h);
this.data = [...Array(this.width)].map(e => Array(this.height).fill([255, 255, 255, 255]));
this.setcolor(this.color);
this.setmode(Tool.pen);
}
addFrame(data=null) {
var img = new Image();
img.src = data || this.canvas.toDataURL();
this.frames.push([img,this.data.map(inner => inner.slice())]);
}
deleteFrame(f) {
this.frames.splice(f,1);
}
loadFrame(f) {
this.clear();
var img = this.frames[f][1];
var tmp_color = this.color;
var tmp_alpha = this.ctx.globalAlpha;
this.ctx.globalAlpha = 1;
var i,j;
for (i=0; i<this.width; i++) {
for (j=0; j<this.height; j++) {
this.setcolor(img[i][j]);
this.draw(i,j);
}
}
this.setcolor(tmp_color);
this.ctx.globalAlpha = tmp_alpha;
}
renderGIF() {
this.frames.forEach(frame => {
gif.addFrame(frame[0], {
copy: true,
delay: 100
});
});
gif.render();
}
undo() {
this.clear();
this.redo_arr.push(this.steps.pop());
var step;
this.steps.forEach(step => {
this.setcolor(step[2]);
this.ctx.globalAlpha = step[3];
this.draw(step[0],step[1],true);
});
}
redo() {
this.steps.push(this.redo_arr.pop());
var step;
this.steps.forEach(step => {
this.setcolor(step[2]);
this.ctx.globalAlpha = step[3];
this.draw(step[0],step[1],true);
});
}
saveInLocal(){
/*let a = this.frames.map(frame=> [frame[0].src,frame[1]]);
let f = JSON.stringify(a);*/
let d = {
'colors': window.colors,
'currColor': this.color,
'width': this.width,
'height': this.height,
'url': this.canvas.toDataURL(),
'steps': this.steps,
'redo_arr': this.redo_arr,
'dim': window.dim,
}
localStorage.setItem('pc-canvas-data', JSON.stringify(d));
}
addImage() {
var _this = this;
var fp = document.createElement("input");
fp.type = "file";
fp.click();
fp.onchange = function(e) {
var reader = new FileReader();
reader.readAsDataURL(e.target.files[0]);
reader.onload = function() {
var uimg = new Image();
uimg.src = reader.result;
uimg.width = _this.w;
uimg.height = _this.h;
uimg.onload = function() {
var pxc = document.createElement("canvas");
pxc.width = _this.w;
pxc.height = _this.h;
var pxctx = pxc.getContext("2d");
pxctx.drawImage(uimg,0,0,_this.w,_this.h);
var i,j;
for (i=0; i<_this.width; i++) {
for (j=0; j<_this.height; j++) {
var ctr = 0;
var avg = [0,0,0,0];
var pix = pxctx.getImageData(10*i, 10*j, 10, 10).data;
pix.forEach((x,k) => {avg[k%4]+=x; if (k%4==0) ctr++;});
avg = avg.map(x=>~~(x/ctr));
_this.setcolor(avg);
_this.draw(i,j);
}
}
}
}
}
}
}
class Popup {
constructor(s) {
this.s = s;
document.querySelector(this.s).style.display = "block";
document.querySelector(this.s).style.transform = "translate(-50%,-50%) scale(1,1)";
}
close() {
document.querySelector(this.s).style.transform = "translate(-50%,-50%) scale(0,0)";
}
}
class Frames {
static open() {
document.querySelector("#frames").style.display = "block";
document.querySelector("#frames").style.transform = "translate(-50%,-50%) scale(1,1)";
document.querySelector("#frames").focus();
document.querySelector("#frames #gallery").innerHTML="";
for (var frame of board.frames) document.querySelector("#frames #gallery").appendChild(frame[0]);
document.querySelectorAll("#frames #gallery img").forEach((x,i) => {
x.onclick = (e) => {
board.loadFrame(i);
Frames.close();
};
x.oncontextmenu = (e) => {
e.preventDefault();
var del_confirmation = confirm("Delete?");
if (del_confirmation) {
board.deleteFrame(i);
Frames.open();
}
};
});
}
static close() {
document.querySelector("#frames").style.transform = "translate(-50%,-50%) scale(0,0)";
}
}
window.onload = function () {
let canvasData = localStorage.getItem('pc-canvas-data');
if(canvasData){
data = JSON.parse(canvasData);
console.log(data);
window.colors = data.colors;
window.board = new Canvas(data.width, data.height);
let img = new Image();
img.setAttribute('src', data.url);
img.addEventListener("load", function () {
window.board.ctx.drawImage(img, 0, 0);
});
/*
window.board.frames = JSON.parse(data.frames).map(frame=>{
let img = new Image();
img.src = frame[0]
return [img, frame[1]]
});
for(let f in data.frames){
let c = document.createElement('canvas');
c.width = data.width;
c.height = data.height;
let c_ctx = c.getContext('2d');
c_ctx.drawImage(f[0], 0, 0);
window.board.addFrame(c.toDataURL());
}
*/
window.board.steps = data.steps;
window.board.redo_arr = data.redo_arr;
window.board.setcolor(data.currColor);
window.gif = new GIF({
workers: 2,
quality: 10,
width: 10 * window.board.width,
height: 10 * window.board.height
});
window.gif.on('finished', function (blob) {
var url = URL.createObjectURL(blob);
var link = document.createElement('a');
link.download = 'canvas.gif';
link.href = url;
link.click();
});
}
else {
newProject();
}
document.querySelector("#palette").innerHTML = colors.map(x => `<span class="item" style="background-color: rgb(${x[0]},${x[1]},${x[2]})" onclick="board.setcolor([${x}]);act(this);" oncontextmenu="board.setcolor([${x}]);act(this);board.ctx.globalAlpha=+prompt('Transparency(0-1)?')"></span>`).join("\n");
document.querySelector("#palette").addEventListener("contextmenu",e=>e.preventDefault());
}
document.querySelector("#close").onclick = function () {
var width = +document.querySelector("#width").value;
var height = +document.querySelector("#height").value;
window.board = new Canvas(width, height);
window.board.setcolor([0, 0, 0, 255]);
window.dim.close();
window.gif = new GIF({
workers: 2,
quality: 10,
width: 10 * window.board.width,
height: 10 * window.board.height
});
window.gif.on('finished', function (blob) {
var url = URL.createObjectURL(blob);
var link = document.createElement('a');
link.download = 'canvas.gif';
link.href = url;
link.click();
});
}
document.querySelector(".menubtn").onclick = function () {
document.querySelector(".menu").style.display = document.querySelector(".menu").style.display != "block" ? "block" : "none";
}
function newProject(){
document.querySelector(".menu").style.display = "none";
localStorage.removeItem('pc-canvas-data');
window.dim = new Popup("#popup");
window.colors = [
[0, 0, 0, 255],
[127, 127, 127, 255],
[136, 0, 21, 255],
[237, 28, 36, 255],
[255, 127, 39, 255],
[255, 242, 0, 255],
[34, 177, 36, 255],
[0, 162, 232, 255],
[63, 72, 204, 255],
[163, 73, 164, 255],
[255, 255, 255, 255],
[195, 195, 195, 255],
[185, 122, 87, 255],
[255, 174, 201, 255],
[255, 201, 14, 255],
[239, 228, 176, 255],
[181, 230, 29, 255],
[153, 217, 234, 255],
[112, 146, 190, 255],
[200, 191, 231, 255]
];
}
function filler(x, y, cc) {
if (x >= 0 && x < board.width && y >= 0 && y < board.height) {
if (JSON.stringify(board.data[x][y]) == JSON.stringify(cc) && JSON.stringify(board.data[x][y]) != JSON.stringify(board.color)) {
board.draw(x, y);
filler(x + 1, y, cc);
filler(x, y + 1, cc);
filler(x - 1, y, cc);
filler(x, y - 1, cc);
}
}
}
function act(clr) {
document.querySelectorAll("#palette .item").forEach(x => x.style.boxShadow = "");
clr.style.boxShadow = "10px 10px 10px 10px rgba(0,0,0,0.5)";
}
window.onbeforeunload = function () {
board.saveInLocal();
return "Data will be lost if you leave the page, are you sure?";
};
var scope = {
scope: './'
};
if ('serviceWorker' in navigator) {
navigator.serviceWorker.register(
'sw.js',
scope
).then(function(serviceWorker) {
console.log('successful');
}).catch(function(error) {
alert("error");
});
} else {
console.log('unavailable');
}
var msg;
window.addEventListener('beforeinstallprompt', (e) => {
e.preventDefault();
msg = e;
});
function install() {
msg.prompt();
}
window.onerror = function (errorMsg, url, lineNumber) {
alert('Error: ' + errorMsg + ' Script: ' + url + ' Line: ' + lineNumber);
}
</script>
</html>