Skribbl.io's first add-on

Adds a handy color wheel on holding down right-click, the option to mute and remove all messages issued by a specific player, a screenshot button with a toggle hotkey (~), as well as a checkbox to automatically save (download) and rename every drawing of a session.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Skribbl.io's first add-on
// @namespace    http://tampermonkey.net/
// @version      0.5
// @description  Adds a handy color wheel on holding down right-click, the option to mute and remove all messages issued by a specific player, a screenshot button with a toggle hotkey (~), as well as a checkbox to automatically save (download) and rename every drawing of a session.
// @author       AllStorm
// @match        https://skribbl.io/*
// @grant        none
// ==/UserScript==

//AllStorm's attempt at a color wheel palette and a save image button.

var canvas = document.createElement('canvas');

var mousePosition = {
  x: 0,
  y: 0
};

var piePosition = {
  x: 0,
  y: 0
};

var pie = false;
var selectedColor = 0;
var lastColor = 0;
var selectedAngle = 0;
var colorCount = document.getElementsByClassName("colorItem").length;
var colorTable = [0, 1, 12, 11, 21, 13, 10, 14, 2, 3, 15, 4, 5, 16, 18, 17, 7, 6, 19, 8, 20, 9];

canvas.id = "PieMenu";
document.body.appendChild(canvas);

canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
canvas.style.position = "absolute";
canvas.style.backgroundColor = "transparent";

canvas.style.zIndex = 8;
canvas.style.left = 0;
canvas.style.top = 0;
canvas.style.pointerEvents = "none";

pieAngle = 360 / (colorCount);

PieMenu = document.getElementById("PieMenu");

var ctx = canvas.getContext("2d");
var textBox;
var checkbox = document.createElement('input');
var muteArray = {};


function setupImageButton() {
  let btnGetImage = document.createElement('a');
  let buttonText = document.createTextNode("Save image");
  btnGetImage.appendChild(buttonText);
  btnGetImage.style.fontSize = "12px";
  btnGetImage.style.cursor = "pointer";
  btnGetImage.style.display = "block";
  btnGetImage.style.padding = "10px";
  btnGetImage.style.borderRadius = "2px";
  btnGetImage.style.fontWeight = "bold";
  btnGetImage.style.background = "#5cb85c";
  btnGetImage.style.color = "white";
  btnGetImage.style.textAlign = "center";
  btnGetImage.style.textDecoration = "none";
  btnGetImage.style.marginTop = "5px";
  document.getElementsByClassName("tooltip-wrapper")[0].appendChild(btnGetImage);
  textBox = document.createElement("textarea");
  textBox.style.resize = "none";
  textBox.style.height = "30px";
  textBox.style.width = "159px";
  textBox.style.fontWeight = "bold";
  textBox.style.marginTop = "5px";
  textBox.style.marginRight = "9px";
  textBox.style.padding = "5px";
  textBox.placeholder = "skribbl-Drawing";
  textBox.style.textAlign = "center";
  textBox.style.fontSize = "11px";
  document.getElementsByClassName("tooltip-wrapper")[0].appendChild(textBox);

  document.getElementsByClassName("tooltip-wrapper")[0].appendChild(checkbox);
  checkbox.type = "checkbox";


  btnGetImage.addEventListener('click', function() {
    getImageFunction(btnGetImage);
  }, false);
  return btnGetImage;
};

var text = document.getElementById("overlay").getElementsByClassName("content")[0].getElementsByClassName("text")[0];
text.addEventListener('DOMSubtreeModified', function() {
  if (checkbox.checked && text.textContent.includes("The word was: ")) {
    textBox.value = "skribbl-" + text.textContent.substring(text.textContent.indexOf(":") + 2);
    getImageButton.click();
  };
}, false);


PlayerList = document.getElementById("containerGamePlayers");
Messages = document.getElementById("boxMessages");

PlayerList.addEventListener('DOMSubtreeModified', function() {
  muteArray = {};
  for (let i = 0; i < PlayerList.childNodes.length; i++) {
    if (PlayerList.childNodes[i].getElementsByClassName("mute")[0]) {
      if (PlayerList.childNodes[i].getElementsByClassName("mute")[0].checked) {
        muteArray[i] = PlayerList.childNodes[i].getElementsByClassName("info")[0].getElementsByClassName("name")[0].textContent;
      };
    } else {

      let checkbox = document.createElement('input');
      checkbox.className = "mute";
      checkbox.type = "checkbox";
      checkbox.style.width = "30px";
      checkbox.style.height = "30px";
      checkbox.addEventListener('change', function() {
        let name = this.parentElement.getElementsByClassName("info")[0].getElementsByClassName("name")[0];
        flagMessage = this.parentElement.getElementsByClassName("message")[0]
        if (this.checked) {

          for (i = 0; i < Messages.childNodes.length; i++) {
            message = Messages.childNodes[i]
            if (message.getElementsByTagName("b")[0]) {
              if (message.getElementsByTagName("b")[0].textContent.indexOf(name.textContent) !== -1) {
                message.parentElement.removeChild(message);
              };
            };
          };
          name.style.visibility = "hidden";
          flagMessage.style.visibility = "hidden";
        } else {
          name.style.visibility = "visible";
          flagMessage.style.visibility = "visible";
        };
      });
      PlayerList.childNodes[i].insertBefore(checkbox, PlayerList.childNodes[i].getElementsByClassName("message")[0]);
    };
  };
}, false);

Messages.addEventListener('DOMSubtreeModified', function() {
  let message = Messages.childNodes[Messages.childNodes.length - 1]
  for (name in muteArray) {
    if (message.getElementsByTagName("b")[0]) {
      console.log(message.getElementsByTagName("b")[0].textContent + "  " + name);
      if (message.getElementsByTagName("b")[0].textContent.indexOf(muteArray[name]) !== -1) {
        message.parentElement.removeChild(message);
      };
    };
  };
});

function getImageFunction(button) {
  var gameCanvas = document.getElementById("canvasGame")
  button.href = gameCanvas.toDataURL();
  console.log(textBox.value);
  if (textBox.value) {
    button.download = textBox.value + '.png';

  } else {
    button.download = 'skribbl-Drawing.png';
  };
};

function drawPie() {
  selectedAngle = 360 - Math.atan2(piePosition.x - mousePosition.x, piePosition.y - mousePosition.y) * 180 / Math.PI;
  if (selectedAngle >= 360) {
    selectedAngle -= 360
  };
  selectedAngle += 90;
  if (selectedAngle >= 360) {
    selectedAngle -= 360
  };
  lastColor = selectedColor;
  selectedColor = Math.floor(selectedAngle / pieAngle);
  if (selectedColor != lastColor) {
    ctx.clearRect(0, 0, canvas.width, canvas.height);

    ctx.shadowBlur = 50;
    ctx.shadowColor = "black";
    ctx.beginPath();
    ctx.fillStyle = document.getElementsByClassName("colorItem")[colorTable[selectedColor]].style.backgroundColor;
    ctx.arc(mousePosition.x, mousePosition.y, 180, 0, Math.PI * 2);
    ctx.lineTo(mousePosition.x, mousePosition.y);
    ctx.closePath;
    ctx.fill();
    for (var colorNr = 0; colorNr < colorCount; colorNr++) {
      ctx.shadowBlur = 5;
      ctx.shadowColor = "black";
      ctx.beginPath();
      ctx.moveTo(mousePosition.x, mousePosition.y);
      ctx.fillStyle = document.getElementsByClassName("colorItem")[colorTable[colorNr]].style.backgroundColor;
      ctx.arc(mousePosition.x, mousePosition.y, 160, Math.PI / 180 * colorNr * pieAngle, Math.PI / 180 * colorNr * pieAngle + (Math.PI / 180 * pieAngle));
      ctx.lineTo(mousePosition.x, mousePosition.y);
      ctx.closePath;
      ctx.fill();
      ctx.stroke();
    }
    ctx.shadowBlur = 40;
    ctx.shadowColor = "white";
    ctx.beginPath();
    ctx.moveTo(mousePosition.x, mousePosition.y);
    try {
      ctx.fillStyle = document.getElementsByClassName("colorItem")[colorTable[selectedColor]].style.backgroundColor;
    } catch (err) {
      console.log(selectedColor);
    };
    ctx.arc(mousePosition.x, mousePosition.y, 200, Math.PI / 180 * selectedColor * pieAngle, Math.PI / 180 * selectedColor * pieAngle + (Math.PI / 180 * pieAngle));
    ctx.lineTo(mousePosition.x, mousePosition.y);
    ctx.closePath;
    ctx.fill();
    ctx.stroke();
  }
}

document.addEventListener('mousedown', function(mouseDownEvent) {
  if (mouseDownEvent.button === 2) {
    pie = true;
    canvas.width = window.innerWidth;
    canvas.height = window.innerHeight;
    drawPie();
  }
}, false);

document.addEventListener('mouseup', function() {
  if (pie) {
    pie = false;
    ctx.clearRect(0, 0, canvas.width, canvas.height);
    document.getElementsByClassName("colorItem")[colorTable[selectedColor]].click();
  }
}, false);

document.addEventListener('keydown', function(e) {
  switch (e.keyCode || e.which) {
    case 49:
      document.getElementsByClassName("brushSize")[0].click();
      break;
    case 50:
      document.getElementsByClassName("brushSize")[1].click();
      break;
    case 51:
      document.getElementsByClassName("brushSize")[2].click();
      break;
    case 52:
      document.getElementsByClassName("brushSize")[3].click();
      break;
    case 221:
    case 192:
      getImageButton.click();
      break;
    case 13:
      document.getElementById("inputChat").focus();
      break;
    default:
      break;
  }

  if (e.code === "KeyV" && e.altKey) {
    document.getElementById("votekickCurrentplayer").click();
    document.getElementById("inputChat").focus();
  }
  if (e.code === "KeyG" && e.altKey) {
    document.getElementsByClassName("thumbsUp")[0].click();
    document.getElementById("inputChat").focus();
  }
  if (e.code === "KeyN" && e.altKey) {
    document.getElementsByClassName("thumbsDown")[0].click();
    document.getElementById("inputChat").focus();
  }
}, false);

document.addEventListener('mousemove', function(mouseMoveEvent) {
  var rect = mouseMoveEvent.target.getBoundingClientRect();
  if (!pie) {
    mousePosition.x = mouseMoveEvent.pageX;
    mousePosition.y = mouseMoveEvent.pageY;
  } else {
    piePosition.x = mouseMoveEvent.pageX;
    piePosition.y = mouseMoveEvent.pageY;
    drawPie();
  }
}, false);

document.addEventListener('contextmenu', function(contextMenuEvent) {
  contextMenuEvent.preventDefault();
  return false;
}, false);

getImageButton = setupImageButton();