Movement particles

Adds particles when walking

Versione datata 21/12/2022. Vedi la nuova versione l'ultima versione.

Dovrai installare un'estensione come Tampermonkey, Greasemonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Userscripts per installare questo script.

Dovrai installare un'estensione come ad esempio Tampermonkey per installare questo script.

Dovrai installare un gestore di script utente per installare questo script.

(Ho già un gestore di script utente, lasciamelo installare!)

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

(Ho già un gestore di stile utente, lasciamelo installare!)

// ==UserScript==
// @name         Movement particles
// @namespace    -
// @version      0.1
// @description  Adds particles when walking
// @author       Devil D. Nudo#7346
// @match        *://*.moomoo.io/*
// @match        *://moomoo.io/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=moomoo.io
// @run-at       document-start
// @grant        none
// ==/UserScript==

(function() {
    function particles() {
        function getRandom(min, max) {
            return Math.floor(Math.random() * (max - min)) + min
        }

        function getRandomRGBA(alpha) {
            const r = Math.round(255 * Math.random())
            const g = Math.round(255 * Math.random())
            const b = Math.round(255 * Math.random())
            const a = alpha ?? 1

            return `rgba(${r}, ${g}, ${b}, ${a})`
        }

        let lastX = 0
        let lastY = 0

        class Vector {
            constructor(x = 0, y = 0) {
                this.x = x
                this.y = y
            }

            static random2D(angle, length = 1) {
                return new Vector(length * Math.cos(angle), length * Math.sin(angle))
            }

            get magnitude() {
                return Math.sqrt(this.x ** 2 + this.y ** 2)
            }

            setMag(length) {
                return this.normalize().mult(length)
            }

            add(x, y) {
                const vector = new Vector(x, y)

                this.x += vector.x
                this.y += vector.y

                return this
            }

            sub(vector) {
                this.x -= vector.x
                this.y -= vector.y

                return this
            }

            mult(scalar) {
                this.x *= scalar
                this.y *= scalar

                return this
            }

            div(divisor) {
                this.x /= divisor
                this.y /= divisor

                return this
            }

            normalize() {
                const mag = this.magnitude

                if (mag > 0) {
                    this.div(mag)
                }

                return this
            }
        }

        class Physics {
            constructor(x, y, mass = 5, time = 0.9) {
                this.mass = mass
                this.time = time

                this.position = new Vector(x, y)
                this.velocity = new Vector()
                this.acceleration = new Vector()
                this.force = new Vector()
            }

            updatePhysics() {
                this.force.div(this.mass)

                this.acceleration.add(this.force.x, this.force.y)
                this.acceleration.mult(this.time)

                this.velocity.add(this.acceleration.x, this.acceleration.y)
                this.velocity.mult(this.time)

                this.position.add(this.velocity.x, this.velocity.y)
            }
        }

        class Particle extends Physics {
            constructor({ id, scale, color }, context, xOffset, yOffset, myPlayer) {
                super(myPlayer.x, myPlayer.y)

                this.id = id
                this.maxScale = scale
                this.color = color
                this.context = context
                this.xOffset = xOffset
                this.yOffset = yOffset

                this.scale = 0

                this.alpha = 0
                this.maxAlpha = 1

                this.liveTime = getRandom(350, 600)
                this.liveDate = Date.now()

                let mag = getRandom(1, 10)

                const speed = Math.hypot(lastY - myPlayer.y, lastX - myPlayer.x)
                const direction = Math.atan2(lastY - myPlayer.y, lastX - myPlayer.x)
                const point = new Physics(myPlayer.x, myPlayer.y)

                point.velocity.add(speed * Math.cos(direction), speed * Math.sin(direction))

                point.updatePhysics()

                this.moveDir = Math.atan2(point.position.y - myPlayer.y, point.position.x - myPlayer.x)

                if (speed <= 0.15) {
                    mag = 0

                    this.moveDir = 0
                }

                this.velocity = Vector.random2D((this.moveDir - Math.PI / 6) + Math.random() * Math.PI * .35).setMag(mag)

                lastX = myPlayer.x
                lastY = myPlayer.y
            }

            get liveTimer() {
                return Date.now() - this.liveDate
            }

            render() {
                this.context.save()
                this.context.fillStyle = this.color
                this.context.globalAlpha = this.alpha
                this.context.beginPath()
                this.context.arc(this.position.x - this.xOffset, this.position.y - this.yOffset, this.scale, 0, 2 * Math.PI)
                this.context.fill()
                this.context.restore()
            }

            update() {
                this.updatePhysics()

                this.scale = (this.liveTimer / this.liveTime) * this.maxScale
                this.alpha = (this.liveTimer / this.liveTime) * this.maxAlpha

                this.render()

                if (this.liveTimer >= this.liveTime) {
                    _particles.remove(this.id)
                }
            }
        }

        class Particles {
            constructor() {
                this.particles = {}
            }

            get list() {
                return Object.values(this.particles)
            }

            create(be, f, d, R) {
                const id = Date.now() / 111

                this.particles[id] = new Particle({
                    id: id,
                    scale: getRandom(5, 12),
                    color: getRandomRGBA()
                }, be, f, d, R)
            }

            remove(id) {
                delete this.particles[id]
            }

            update(be, f, d, R) {
                this.create(be, f, d, R)

                let i = this.list.length

                while (i--) {
                    this.list[i].update()
                }
            }
        }

        return new Particles()
    }

    function applyRegex(code) {
        code = code.replace(/function\sOi/, `;${particles.toString()}; const _particles = particles();function Oi`)

        code = code.replace(/\_.health\>\d/, `;_particles.update(be, f, d, R);_.health>0`)

        return code
    }

    async function loadScript(script) {
        const response = await fetch(script.src)

        let code = await response.text()

        code = applyRegex(code)

        eval(code)
    }


    const observer = new MutationObserver(function(mutations) {
        for (const mutation of mutations) {
            for (const node of mutation.addedNodes) {
                if (node.tagName === "SCRIPT" && /bundle\.js$/.test(node.src)) {
                    observer.disconnect()

                    loadScript(node)

                    node.remove()
                }
            }
        }
    })
    
    observer.observe(document, {
        childList: true,
        subtree: true
    })
})()