Adds a heatmap feature to the minimap in Splix.io, highlighting recently captured territories in white, which fades to black over time.
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// ==UserScript==
// @name Heatmap for Splix.io
// @namespace http://tampermonkey.net/
// @version 0.1
// @description Adds a heatmap feature to the minimap in Splix.io, highlighting recently captured territories in white, which fades to black over time.
// @author fr13ndly
// @license MIT
// @match *://splix.io/*
// @icon https://www.google.com/s2/favicons?sz=64&domain=splix.io
// @grant none
// ==/UserScript==
(function () {
"use strict";
const MAX_HEAT_LEVEL = 5;
class Heatmap {
constructor() {
this.isInitialUpdate = true;
this.heatCells = [];
}
update(cells) {
// HeatCell not found in cells? Remove it.
for (let i = this.heatCells.length; i > 0; i--) {
const heatCell = this.heatCells[i - 1];
const cell = cells.findIndex(
(c) => c.x == heatCell.x && c.y == heatCell.y
);
if (cell == -1) {
this.heatCells.splice(i - 1, 1);
}
}
// Update hot levels
for (const cell of cells) {
const heatCell = this.heatCells.find(
(c) => c.x == cell.x && c.y == cell.y
);
if (heatCell) {
if (heatCell.heatLevel > 0) {
heatCell.heatLevel--;
}
continue;
}
// Not found - create "hot" cell
this.heatCells.push({
x: cell.x,
y: cell.y,
heatLevel: this.isInitialUpdate ? 0 : MAX_HEAT_LEVEL,
});
}
this.isInitialUpdate = false;
}
get cells() {
return this.heatCells;
}
}
class HeatmapUtils {
static getHeatCellColor(heatLevel) {
const lightness = (100 / MAX_HEAT_LEVEL) * heatLevel;
return `hsl(0, 0%, ${lightness}%)`;
}
}
var HEATMAPS = {};
// Setup custom handlers
window.addEventListener("load", function () {
window.doConnect = new Proxy(window.doConnect, {
apply: (target, thisArg, argArray) => {
const retValue = target.apply(thisArg, argArray);
// Modify ws.onmessage handler
if (window.ws) {
window.ws.onmessage = new Proxy(window.ws.onmessage, {
apply: (target, thisArg, argArray) => {
const retValue = target?.apply(thisArg, argArray);
heatmapWSMessageHandler.apply(thisArg, argArray);
return retValue;
},
});
}
return retValue;
},
});
});
function heatmapWSMessageHandler(e) {
const m = new Uint8Array(e.data);
if (m[0] != receiveAction.MINIMAP) {
return;
}
const part = m[1];
const z = 20 * part;
if (!HEATMAPS[part]) {
HEATMAPS[part] = new Heatmap();
}
const currentHeatmap = HEATMAPS[part];
const partCells = [];
// Unpack cells
for (let i = 1; i < m.length; i++) {
// Process each bit
for (let b = 0; b < 8; b++) {
const isBitSet = (m[i] & (1 << b)) !== 0;
if (isBitSet) {
const Q = 8 * (i - 2) + b;
const x = (Math.floor(Q / 80) % 80) + z;
const y = Q % 80;
partCells.push({ x, y });
}
}
}
// Update heatmap
currentHeatmap.update(partCells);
// Clear minimap area
minimapCtx.clearRect(2 * z, 0, 40, 160);
minimapCtx.fillStyle = "#000000";
// Render cells
for (const heatCell of currentHeatmap.cells) {
minimapCtx.fillStyle = HeatmapUtils.getHeatCellColor(
heatCell.heatLevel
);
minimapCtx.fillRect(2 * heatCell.x, 2 * heatCell.y, 2, 2);
}
}
})();