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index2.html
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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<link rel="icon"
type="image/png"
href="favicon.png">
<script src="FileSaver.js"></script>
<script type="text/javascript" >
var maxCanvasses=64;
var width=160;
var height=100;
var zoomFactor=4;
var radius=2;
var contexts = new Array();
var version="0.1";
var gameLink="my game by increpare"
var canvasIndex="R";
var canvasses = {};
var shareLinkInner=null;
/*
//arne
var colorPalette = [
"#000000",
"#9D9D9D",
"#FFFFFF",
"#BE2633",
"#E06F8B",
"#493C2B",
"#A46422",
"#EB8931",
"#F7E26B",
"#2F484E",
"#44891A",
"#A3CE27",
"#1B2632",
"#005784",
"#31A2F2",
"#B2DCEF"
];
*/
//dawnbringer
//http://www.pixeljoint.com/forum/forum_posts.asp?TID=12795
var colorPalette = [
"#000",
"#f00",
"#00f",
"#fff"
];
/*
//spectrum
var colorPalette = [
"#000000",
"#888888",
"#CDCDCD",
"#FFFFFF",
"#0000CD",
"#0000FF",
"#CD0000",
"#FF0000",
"#CD00CD",
"#FF00FF",
"#00CD00",
"#00FF00",
"#00CDCD",
"#00FFFF",
"#CDCD00",
"#FFFF00"
];
*/
var colorElem = new Array();
var layerElem = new Array();
var colorIndex=3;
var aurl = document.createElement('a');
function qualifyURL(url) {
aurl.href = url;
return aurl.href;
}
var radiusElem = new Array();
var thumbnailCanvas = new Array();
var thumbnailContext = new Array();
var standalone_HTML_String="";
var clientStandaloneRequest = new XMLHttpRequest();
clientStandaloneRequest.open('GET', 'play2.html');
clientStandaloneRequest.onreadystatechange = function() {
if(clientStandaloneRequest.readyState!=4) {
return;
}
standalone_HTML_String=clientStandaloneRequest.responseText;
}
clientStandaloneRequest.send();
var get_blob = function() {
return self.Blob;
}
function buildStandalone(sourceCode) {
if (standalone_HTML_String.length===0) {
alert("Can't export yet - still downloading html template.",true);
return;
}
sourceCode=encodeURI(sourceCode);
var htmlString = standalone_HTML_String.concat("");
htmlString = "<!--Save as html file-->\n"+htmlString;
htmlString = htmlString.replace(/__EMBED__/g,sourceCode);
var BB = get_blob();
var blob = new BB([htmlString], {type: "text/plain;charset=utf-8"});
saveAs(blob, "flickgamejr.html");
}
function exportClick(){
var embedDat = stateToString();
buildStandalone(embedDat);
}
function importClick(){
var reader = new FileReader();
reader.onload = function(e) {
var text = reader.result;
}
reader.readAsText(file, encoding);
}
OAUTH_CLIENT_ID = "eb2aad12c63aec0136b1";
function getAuthURL(){
var randomState = window.btoa(Array.prototype.map.call(
window.crypto.getRandomValues(new Uint8Array(24)),
function(x) { return String.fromCharCode(x); }).join(""));
var authUrl = "https://github.com/login/oauth/authorize"
+ "?client_id=" + OAUTH_CLIENT_ID
+ "&scope=gist"
+ "&state=" + randomState
+ "&allow_signup=true";
return authUrl;
}
function printUnauthorized(){
var authUrl = getAuthURL();
var toPrint = "<a target=\"_blank\" href=\"" + authUrl + "\">Log in with Github to share</a><br>";
var shareLink = document.getElementById("shareLink");
shareLink.innerHTML = toPrint;
shareLinkInner=null;
}
function githubLogOut(){
window.localStorage.removeItem("oauth_access_token");
var authUrl = getAuthURL();
var toPrint = "Logged out of Github.<br>";
var shareLink = document.getElementById("shareLink");
shareLink.innerHTML = toPrint;
shareLinkInner=null;
}
function shareClick() {
var oauthAccessToken = window.localStorage.getItem("oauth_access_token");
if (typeof oauthAccessToken !== "string") {
// Generates 32 letters of random data, like "liVsr/e+luK9tC02fUob75zEKaL4VpQn".
printUnauthorized();
return;
}
var str = stateToString();
var gistToCreate = {
"description" : "flickgame",
"public" : true,
"files": {
"readme.txt" : {
"content": "A game made with www.flickgame.org. You can import game.txt there to play the game. Uh, too lazy to describe - HMU at analytic@gmail.com if you want to know how (basically just use the gist ID in the url like other flickgames do...) "
},
"game.txt" : {
"content": str
}
}
};
var githubURL = 'https://api.github.com/gists';
var githubHTTPClient = new XMLHttpRequest();
githubHTTPClient.open('POST', githubURL);
githubHTTPClient.onreadystatechange = function() {
var errorCount=0;
if(githubHTTPClient.readyState!=4) {
return;
}
var result = JSON.parse(githubHTTPClient.responseText);
if (githubHTTPClient.status===403) {
errorCount++;
alert(result.message);
} else if (githubHTTPClient.status!==200&&githubHTTPClient.status!==201) {
if (githubHTTPClient.statusText==="Unauthorized"){
alert("Authorization check failed. You have to log back into GitHub (or give it permission again or something).");
window.localStorage.removeItem("oauth_access_token");
} else {
alert("HTTP Error "+ githubHTTPClient.status + ' - ' + githubHTTPClient. statusText);
}
printUnauthorized();
} else if (githubHTTPClient.status!==200&&githubHTTPClient.status!==201) {
errorCount++;
alert("HTTP Error "+ githubHTTPClient.status + ' - ' + githubHTTPClient.statusText);
} else {
var id = result.id;
var url = "play.html?p="+id;
url=qualifyURL(url);
var editurl = "editor.html?hack="+id;
editurl=qualifyURL(editurl);
var sourceCodeLink = "link to source code:<br><a href=\""+editurl+"\">"+editurl+"</a>";
var shareLink = document.getElementById("shareLink");
shareLink.innerHTML = "<a target=\"_blank\" href=\""+url+"\">↳"+id+"</a><br>"+
'(<a onclick="githubLogOut();" href="javascript:void(0);">log out of GitHub</a>)<br>';
shareLinkInner = shareLink.childNodes[0];
if (errorCount>0) {
alert("Cannot link directly to playable game, because there are errors.",true);
} else {
}
}
}
githubHTTPClient.setRequestHeader("Content-type","application/x-www-form-urlencoded");
githubHTTPClient.setRequestHeader("Authorization","token "+oauthAccessToken);
var stringifiedGist = JSON.stringify(gistToCreate);
githubHTTPClient.send(stringifiedGist);
lastDownTarget=canvas;
}
var RLE_encoding_cache = new Uint32Array(width*height*2);
function RLE_encode(input) {
var occupied=0;
var prev, count, i;
for (count = 1, prev = input[0], i = 1; i < input.length; i++) {
if (input[i] != prev) {
RLE_encoding_cache[occupied]=count;
RLE_encoding_cache[occupied+1]=prev;
occupied+=2;
count = 1;
prev = input[i];
}
else
count ++;
}
RLE_encoding_cache[occupied]=count;
RLE_encoding_cache[occupied+1]=prev;
occupied+=2;
var encoding_cropped = [];
for (var i=0;i<occupied;i++){
encoding_cropped.push(RLE_encoding_cache[i]);
}
return encoding_cropped;
}
function RLE_decode(encoded) {
var output = "";
encoded.forEach(function(pair){ output += new Array(1+pair[0]).join(pair[1]) })
return output;
}
function stateToString(){
return serializeState();
}
function stringToState(str){
deserializeState(str);
setVisuals(true);
}
document.addEventListener("keydown", press);
var copyImage = null;
var savedString;
function press(evt){
evt = evt || window.event;
/*
if (evt.keyCode==83){//S(ave)
savedString = stateToString();
} else if (evt.keyCode==76){//L(oad)
stringToState(savedString);
setVisuals();
setLayer(canvasIndex+1);
} */
if (evt.keyCode===67) { //c
copyImage=JSON.stringify(canvasses[canvasIndex])
} else if (evt.keyCode===86){ //v
if (copyImage!==null){
preserveUndoState();
var ar = JSON.parse(copyImage);
var arui8 = new Uint8Array(width*height);
for (var i=0;i<width*height;i++){
arui8[i]=ar[i];
}
canvasses[canvasIndex]=arui8;
setVisuals();
}
} else if (evt.keyCode ===189 || evt.keyCode===173 ) {//-
if (radius>1) {
setRadius(radius-1);
}
} else if (evt.keyCode===187 || evt.keyCode===61){//+
if (radius<6) {
setRadius(radius+1);
}
} else if (evt.keyCode===90){//z
if (undoList.length>0){
var dat = undoList.pop();
if (dat.canvasDat==null){
if (dat.canvasIndex in canvasses) {
delete canvasses[dat.canvasIndex];
}
} else {
canvasses[dat.canvasIndex]=dat.canvasDat;
}
setLayer(dat.canvasIndex);
checkEmpties();
if (shareLinkInner!==null){
shareLinkInner.style.color="gray";
}
}
} else if (evt.keyCode ===37 || evt.keyCode === 65 || evt.keyCode === 81){//left
setLayer(0);
} else if (evt.keyCode ===38 || evt.keyCode === 87){//up
setLayer(-1);
} else if (evt.keyCode ===39 || evt.keyCode === 68){//right
setLayer(1);
}else if (evt.keyCode ===88){
clearPalette();
} else if (evt.keyCode ===80 ){
serializeToConsole();
} else if (evt.keyCode === 49){
setColor(3);
} else if (evt.keyCode === 50){
setColor(1);
} else if (evt.keyCode === 51){
setColor(2);
} else if (evt.keyCode === 52){
setColor(0);
} else if (evt.keyCode === 53){
setRadius(6);
} else if (evt.keyCode === 54){
setRadius(5);
} else if (evt.keyCode === 55){
setRadius(4);
} else if (evt.keyCode === 56){
setRadius(3);
} else if (evt.keyCode === 57){
setRadius(2);
} else if (evt.keyCode === 48){
setRadius(1);
} else if (evt.keyCode === 70){
setRadius(0);
}
}
function squishCanvas(canvas){
var c4 = RLE_encode(canvas);
return c4;
}
function unsquishCanvas(c4){
var c3 = new Uint8Array(width*height);
var index=0;
for (var i=0;i<Object.keys(c4).length;i+=2){
var count=c4[i];
var ch=c4[i+1];
for (var j=0;j<count;j++){
c3[index]=ch;
index++;
}
}
return c3;
}
function serializeState(){
window.console.log("serializing");
var flattened = [linkInput.value];
gameLink=linkInput.value;
var keys = Object.keys(canvasses);
for (var i=0;i<keys.length;i++){
var key = keys[i];
var canvas = canvasses[key];
flattened.push(key);
var squished_canvas = squishCanvas(canvas);
flattened.push(squished_canvas);
}
var result = JSON.stringify(flattened);
return result;
}
function deserializeState(dat){
var struct = JSON.parse(dat);
gameLink=struct[0];
linkInput.value=gameLink;
canvasses = {};
for (var i=1;i<struct.length;i+=2){
var canvas_index = struct[i];
var canvas_squished = struct[i+1];
var canvas_unsquished = unsquishCanvas(canvas_squished);
canvasses[canvas_index] = canvas_unsquished;
}
canvasIndex="R";
setLayer("R");
}
function serializeToConsole(){
var result = serializeState();
deserializeState(result);
var result2 = serializeState();
if (result===result2){
window.console.log("STABLE");
window.console.log(result);
} else {
window.console.log(result);
window.console.log(result2);
}
setVisuals(true);
}
function getRandomInt(min, max) {
return Math.floor(Math.random() * (max - min)) + min;
}
var visibleCanvas;
var visibleContext;
var linkInput;
var pageCountSpan;
var id;
var id_d;
var lastX=-1;
var lastY=-1;
var bucketElem;
function linkChange(newLink){
gameLink=newLink;
}
function clearPalette(){
var canvas=canvasses[canvasIndex];
if (canvas==null){
return;
}
preserveUndoState();
delete canvasses[canvasIndex];
checkEmpties();
setVisuals();
}
function setRadius(newRadius) {
radius=newRadius;
bucketElem.setAttribute("class","radius");
for(var i=0;i<16;i++){
if (radiusElem[i]!==null){
radiusElem[i].setAttribute("class","radius");
}
}
if (newRadius>0){
radiusElem[newRadius-1].setAttribute("class","radius selected");
} else {
bucketElem.setAttribute("class","radius selected");
}
}
function setColor(newColorIndex) {
colorIndex=newColorIndex;
for(var i=0;i<4;i++){
if (colorElem[i]!==null){
colorElem[i].setAttribute("class","unselected");
}
}
colorElem[colorIndex].setAttribute("class","selected");
}
function memoryFull(){
return Object.keys(canvasses).length=== maxCanvasses;
}
//string given index
//-1 parent
//0 son blue
//1 son red
function setLayer(dir) {
var targetCanvas=canvasIndex;
if (typeof dir === "string") {
targetCanvas=dir;
} else if (dir===-1){
if (targetCanvas.length===1){
window.console.log("oops, already at root node!")
return;
} else {
targetCanvas = canvasIndex.substr(0,canvasIndex.length-1);
}
} else {
targetCanvas = canvasIndex+dir;
}
canvasIndex = targetCanvas;
setVisuals(true);
}
function init() {
pageCountSpan = document.getElementById("pagecountspan");
linkInput=document.getElementById("linkInput");
//linkInput.value=gameLink;
radii = new Array();
for (var i=0;i<16;i++){
elem = document.getElementById("radius_"+(i+1));
radiusElem[i]=elem;
}
for (var i=0;i<3;i++){
elem = document.getElementById("thumbnail"+(i));
thumbnailCanvas[i]=elem;
thumbnailContext[i]=elem.getContext("2d");
thumbnailContext[i].imageSmoothingEnabled=false;
}
for (var i=0;i<4;i++){
elem = document.getElementById("color_"+(i));
colorElem[i]=elem;
}
for (var i=0;i<3;i++){
elem = document.getElementById("layerItem"+(i));
layerElem[i]=elem;
}
bucketElem=document.getElementById("bucket");
visibleCanvas = document.getElementById("mainCanvas");
visibleCanvas.addEventListener('mousedown', mouseDown,false);
visibleCanvas.addEventListener('mouseup', mouseUp,false);
visibleCanvas.addEventListener('mousemove', mouseMove,false);
visibleCanvas.addEventListener('mouseout', mouseOut,false);
var fileUploader = document.getElementById("my_file");
fileUploader.addEventListener('change', readFile, false);
window.addEventListener('mouseup', mouseUp,false);
visibleContext = visibleCanvas.getContext("2d");
visibleContext.imageSmoothingEnabled= false;
id = visibleContext.createImageData(1,1); // only do this once per page
id_d=id.data;
setVisuals(true);
setColor(colorIndex);
getData();
checkEmpties();
}
function readFile(evt) {
//Retrieve the first (and only!) File from the FileList object
var f = evt.target.files[0];
if (f) {
var r = new FileReader();
r.onload = function(e) {
var contents = e.target.result;
var fromToken="<!--__EmbedBegin__-->";
var endToken="<!--__EmbedEnd__-->";
var fromIndex=contents.indexOf(fromToken);
var endIndex=contents.indexOf(endToken);
var ss1 = contents.substr(fromIndex+fromToken.length,endIndex-fromIndex-fromToken.length);
var ss2=ss1.substr(ss1.indexOf("=")+2);
var decoded = decodeURI(ss2);
var decoded2 = decoded.substr(0, decoded.length - 3);
stringToState(decoded2);
setVisuals(true);
setLayer(canvasIndex);
}
r.readAsText(f);
} else {
alert("Failed to load file");
}
}
function getParameterByName(name) {
name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
results = regex.exec(location.search);
return results == null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
}
function strip_http(url) {
url = url.replace(/^https?:\/\//,'');
return url;
}
function getData(){
var id = getParameterByName("p").replace(/[\\\/]/,"");
if (id===null||id.length===0) {
return;
}
var githubURL = 'https://api.github.com/gists/'+id;
var githubHTTPClient = new XMLHttpRequest();
githubHTTPClient.open('GET', githubURL);
githubHTTPClient.onreadystatechange = function() {
if(githubHTTPClient.readyState!=4) {
return;
}
var result = JSON.parse(githubHTTPClient.responseText);
if (githubHTTPClient.status===403) {
alert(result.message);
} else if (githubHTTPClient.status!==200&&githubHTTPClient.status!==201) {
alert("HTTP Error "+ githubHTTPClient.status + ' - ' + githubHTTPClient.statusText);
}
var result = JSON.parse(githubHTTPClient.responseText);
var code=result["files"]["game.txt"]["content"];
stringToState(code);
setVisuals(true);
setLayer(canvasIndex);
}
githubHTTPClient.setRequestHeader("Content-type","application/x-www-form-urlencoded");
githubHTTPClient.send();
}
function drawThumbnail(n){
var shouldShow=true;
if (n===-1&&canvasIndex=="R"){
shouldShow=false;
}
if(shouldShow==false){
document.getElementById('thumbnailcontainer'+(n+1)).style.visibility="hidden";
return;
} else {
document.getElementById('thumbnailcontainer'+(n+1)).style.visibility="";
if (canvasIndex[canvasIndex.length-1]=="0"){
document.getElementById('parentarrowcharacter').className='downarrowblue';
} else {
document.getElementById('parentarrowcharacter').className='downarrowred';
}
}
thumbCtx=thumbnailContext[n+1];
thumbCtx.fillStyle="#000000";
thumbCtx.fillRect(0,0,80,50);
var thumbIndex=canvasIndex;
if (n==-1){
thumbIndex = thumbIndex.substr(0,thumbIndex.length-1);
} else {
thumbIndex = thumbIndex+n;
}
var canvas=canvasses[thumbIndex];
if (canvas==null){
return;
}
for (var i=0;i<80;i++){
for (var j=0;j<50;j++){
var max=0;
var z=2;
for (var i2=0;i2<z;i2++){
for (var j2=0;j2<z;j2++){
var sample = canvas[i*z+i2+width*(j*z+j2)];
if (sample>max){
max=sample;
}
}
}
thumbCtx.fillStyle=colorPalette[max];
thumbCtx.fillRect(i,j,1,1);
}
}
// var dataUrl = thumbnailCanvas[n].toDataURL();
}
function setVisuals(genAllThumbnails){
//visibleContext.drawImage(canvasses[canvasIndex], 0, 0);
//visibleContext.drawImage(canvasses[canvasIndex], 0, 0,width*zoomFactor,height*zoomFactor);
canvas=canvasses[canvasIndex];
if (canvas==null){
visibleContext.fillStyle="#000";
visibleContext.fillRect(0,0,width*zoomFactor,height*zoomFactor);
} else {
for (var i=0;i<width;i++){
for (var j=0;j<height;j++){
var pixelIndex = canvas[i+width*j];
visibleContext.fillStyle=colorPalette[pixelIndex];
visibleContext.fillRect(i*zoomFactor,j*zoomFactor,zoomFactor,zoomFactor);
}
}
}
if (genAllThumbnails===true){
for (var i=-1;i<2;i++){
drawThumbnail(i);
}
}
linkInput.value=gameLink;
}
var drawing=0;
function getCoords(e) {
var x,y;
if(typeof e.offsetX !== "undefined") {
x = e.offsetX;
y = e.offsetY;
}
else {
var target = e.target || e.srcElement;
var rect = target.getBoundingClientRect();
x = e.clientX - rect.left,
y = e.clientY - rect.top;
}
return [x,y];
}
function uint8ar_copy(src) {
var dst = new Uint8Array(width*height);
for (var i=0;i<src.length;i++){
dst[i]=src[i];
}
return dst;
}
var undoList=new Array();
function preserveUndoState() {
console.log("preserving undo state");
var undoItem = new Object();
undoItem.canvasIndex=canvasIndex;
if ( (canvasIndex in canvasses)==false){
undoItem.canvasDat=null;
} else {
undoItem.canvasDat=uint8ar_copy(canvasses[canvasIndex]);
}
undoList.push(undoItem);
if (undoList.length>100){
undoList.shift();
}
if (shareLinkInner!==null){
shareLinkInner.style.color="gray";
}
}
function mouseDown(e){
e = e || window.event;
drawing=1;
var coords = getCoords(e);
startTargetX=coords[0];
startTargetY=coords[1];
lastX=Math.floor(startTargetX/zoomFactor);
lastY=Math.floor(startTargetY/zoomFactor);
preserveUndoState();
mouseMove(e);
if(radius===0){
drawing=0;
}
}
function mouseUp(e){
e = e || window.event;
drawing=0;
lastX=-1;
lastY=-1;
}
function mouseOut(e){
e = e || window.event;
mouseMove(e);
lastX=-1;
lastY=-1;
}
function line (x1, y1,x2,y2) {
var coordinatesArray = new Array();
// Translate coordinates
// Define differences and error check
var dx = Math.abs(x2 - x1);
var dy = Math.abs(y2 - y1);
var sx = (x1 < x2) ? 1 : -1;
var sy = (y1 < y2) ? 1 : -1;
var err = dx - dy;
// Set first coordinates
coordinatesArray.push([x1,y1]);
// Main loop
while (!((x1 == x2) && (y1 == y2))) {
var e2 = err << 1;
if (e2 > -dy) {
err -= dy;
x1 += sx;
}
if (e2 < dx) {
err += dx;
y1 += sy;
}
// Set coordinates
coordinatesArray.push([x1,y1]);
}
// Return the result
return coordinatesArray;
}
function mouseMove(e){
e = e || window.event;
if (drawing===0)
return;
var coords = getCoords(e);
var x = Math.floor(coords[0]/zoomFactor);
var y = Math.floor(coords[1]/zoomFactor);
var canvas=canvasses[canvasIndex];
if (canvas==null){
if (memoryFull()){
return;
}
canvasses[canvasIndex]=new Uint8Array(width*height);
canvas = canvasses[canvasIndex];
}
var points;
if (lastX===-1) {
points=[[x,y]];
} else {
points=line(x,y,lastX,lastY);
}
for (var i=0;i<points.length;i++){
var p=points[i];
if (radius>0){
drawCircle(canvas,p[0],p[1],radius,colorIndex);
} else {
floodFill(canvas, p[0], p[1], colorIndex);
}
checkEmpties();
}
/*context.beginPath();
context.arc(x, y, radius, 0, 2 * Math.PI, false);
context.lineWidth = 0;
context.fillStyle = 'green';
context.fill();*/
setVisuals();
var coords = getCoords(e);
lastX=Math.floor(coords[0]/zoomFactor);
lastY=Math.floor(coords[1]/zoomFactor);
}
function checkEmpties() {
var canvas=canvasses[canvasIndex];
if (canvas==null){
var pc = Object.keys(canvasses).length;
if (pc===maxCanvasses){
pageCountSpan.innerHTML = "<span style='color:red;'>"+Object.keys(canvasses).length+"</span>";
} else {
pageCountSpan.innerHTML = Object.keys(canvasses).length;
}
return;
}
var shouldremove=true;
if (canvasIndex==="R"){
shouldremove=false;
}
for (var i=0;i<canvas.length;i++){
if (canvas[i]>0){
shouldremove=false;
}
}
if (shouldremove){
delete canvasses[canvasIndex];
}
var pc = Object.keys(canvasses).length;
if (pc===maxCanvasses){
pageCountSpan.innerHTML = "<span style='color:red;'>"+Object.keys(canvasses).length+"</span>";
} else {
pageCountSpan.innerHTML = Object.keys(canvasses).length;
}
}
function drawCircle(canvas,x,y,radius,colorIndex){
if (radius==1){
if (x>=0&&x<width&&y>=0&&y<height){
canvas[x+width*y]=colorIndex;
}
} else if (radius==2){
var points = [[x,y],[x-1,y],[x,y-1],[x-1,y-1]];
for (var i=0;i<points.length;i++){
var px=points[i][0];
var py=points[i][1];
if (px>=0&&px<width&&py>=0&&py<height){
canvas[px+width*py]=colorIndex;
}
}
return;
} else if (radius==3){
var points = [[x,y],[x-1,y],[x,y+1],[x+1,y],[x,y-1]];
for (var i=0;i<points.length;i++){
var px=points[i][0];
var py=points[i][1];
if (px>=0&&px<width&&py>=0&&py<height){
canvas[px+width*py]=colorIndex;
}
}
return;
}
if (radius==2){
var points = [
[x-1,y+2],[x,y+2],[x+1,y+2],
[x-2,y+1],[x-1,y+1],[x,y+1],[x+1,y+1],[x+2,y+1],
[x-2,y ],[x-1,y ],[x,y ],[x+1,y ],[x+2,y ],
[x-2,y-1],[x-1,y-1],[x,y-1],[x+1,y-1],[x+2,y-1],
[x-1,y-2],[x,y-2],[x+1,y-2]
];
for (var i=0;i<points.length;i++){
var px=points[i][0];
var py=points[i][1];
if (px>=0&&px<width&&py>=0&&py<height){
canvas[px+width*py]=colorIndex;
}
}
return;