TagPro Tile Pattern

Tints every other floor tile a slightly different shade.| Greasemonkey 4.1: ✕ Tampermonkey 4.4: ✔

As of 2017-12-16. See the latest version.

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          TagPro Tile Pattern
// @namespace     http://www.reddit.com/u/snaps_/
// @description   Tints every other floor tile a slightly different shade.| Greasemonkey 4.1: ✕ Tampermonkey 4.4: ✔ 
// @include       http://tagpro-*.koalabeast.com:* 
// @include       http://tangent.jukejuice.com:* 
// @include       http://*.newcompte.fr:* 
// @license       GPL version 3 or any later version; http://www.gnu.org/copyleft/gpl.html 
// @author        snaps
// @version       0.1.0
// ==/UserScript==

/* User-Defined Variables */

// The color to tint the floor tiles.
var TINT_COLOR = "#663300";

// How much to tint the floor tiles. Should be a number from 0 to 1.
// In practice try values from 0.05 to 1 in increments of .2 to start,
// then smaller amounts to hone in on what you like.
var OPACITY = 0.05;

/* End of User-Defined Variables */


/**
 * Executes `fn` when the relevant parts of the `tagpro` object have
 * been initialized.
 * @param {Function} fn - The function to execute.
 */
function waitForInitialized(fn) {
  if (!tagpro || !tagpro.tiles || !tagpro.tiles.draw || !tagpro.renderer) {
    setTimeout(function() {
      waitForInitialized(fn);
    }, 10);
  } else {
    // Only override if we load early enough.
    if (!tagpro.renderer.layers.backgroundDrawn) {
      fn();
    }
  }
}

waitForInitialized(function() {
  var stdDraw = tagpro.tiles.draw;
  // ids of the tiles we're interested in changing.
  var floorTiles = [2, 11, 12, 17, 18];
  var prefix = "__tinted__";

  /**
   * Set tint of a given canvas element.
   * @param {HTMLElement} image - Canvas element holding the image to tint.
   * @param {string} [color="#000000"] - Color string to tint the tiles, like "#FF0000".
   * @param {number} [opacity="0.01"] - How much to preserve the original image.
   */
  var setTint = function(image, color, opacity) {
    // Adapted from: http://stackoverflow.com/a/4231508/1698058
    var tint = document.createElement("canvas");
    tint.width = image.width;
    tint.height = image.height;

    var tintCtx = tint.getContext("2d");
    tintCtx.fillStyle = color || "#000000";
    tintCtx.fillRect(0, 0, tint.width, tint.height);
    tintCtx.globalCompositeOperation = "destination-atop";
    tintCtx.drawImage(image, 0, 0);

    var imageCtx = image.getContext("2d");
    imageCtx.globalAlpha = opacity || 0.01;
    imageCtx.drawImage(tint, 0, 0);
  }

  /**
   * Creates the tinted texture for the tile of the given id and sets
   * the relevant values such that the returned value will function in
   * the original `tagpro.tiles.draw` function.
   * @param {(number|string)} tileId - The original id of the tile to set information for.
   * @return {string} - The new id to use for the tile.
   */
  var setTintedTexture = function(tileId) {
    var originalTileId = tileId;
    tileId = prefix + originalTileId;
    if (!tagpro.tiles[tileId] || !PIXI.TextureCache[tileId]) {
      var tile = tagpro.tiles[originalTileId];
      tagpro.tiles[tileId] = tile;

      var spread = tile.spread || 0;
      var elt = document.createElement("canvas");
      elt.width = tile.size || 40;
      elt.height = tile.size || 40;

      var ctx = elt.getContext("2d");
      var sx = tile.x * 40 - spread;
      var sy = tile.y * 40 - spread;
      var size = (tile.size || 40) + spread * 2;
      ctx.drawImage(tagpro.tiles.image, sx, sy, size, size, 0, 0, size, size);
      setTint(elt, TINT_COLOR, OPACITY);
      PIXI.TextureCache[tileId] = PIXI.Texture.fromCanvas(elt);
    }
    return tileId;
  }

  // Override `tagpro.tiles.draw`.
  tagpro.tiles.draw = function() {
    // Only make changes when drawing background tiles.
    if (tagpro.tiles.draw.caller === tagpro.tiles.drawLayers) {
      var loc = arguments[2];
      
      var floorTile = floorTiles.indexOf(arguments[1]) !== -1;
      if (loc && !(typeof arguments[1] == "object") && floorTile) {
        var arrayLoc = {
          x: Math.floor(loc.x / 40),
          y: Math.floor(loc.y / 40)
        };
        if ((arrayLoc.x % 2 == 0 && arrayLoc.y % 2 == 0) ||
            (arrayLoc.x % 2 == 1 && arrayLoc.y % 2 == 1)) {
          arguments[1] = setTintedTexture(arguments[1]);
        }
      }
    }
    return stdDraw.apply(null, arguments);
  }
});