Greasy Fork is available in English.
Arras classes for scripting
此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.greasyfork.icu/scripts/550169/1664159/Classes.js
// ==UserScript==
// @name Classes
// @namespace http://tampermonkey.net/
// @version 2025-09-20
// @description Arras classes for scripting
// @author You
// @match http://*/*
// @icon data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @grant none
// ==/UserScript==
(function() {
'use strict';
class BroadcastInfo {
constructor() {
this.clear();
}
clear() {
this.global_minimap = {};
this.team_minimap = {};
this.leaderboard = new Map();
}
// get the id of a leaderboard item by rank
get_lb_rank_id(rank) {
let i = 0;
for (const [id, lb_obj] of this.leaderboard.entries()) {
if (i === rank) {
return id;
}
i++;
}
return null;
}
serialize_team_minimap() {
let bytes = (this.team_minimap.length * 7) + 2;
let buf = new ArrayBuffer(bytes);
let view = new DataView(buf);
view.setUint16(0, this.team_minimap.length);
let offset = 2;
for (let id in this.team_minimap) {
let obj = this.team_minimap[id];
view.setUint32(offset, id);
view.setUint8(offset + 4, obj.x);
view.setUint8(offset + 5, obj.y);
view.setUint8(offset + 6, obj.color);
offset += 7;
}
return buf;
}
deserialize_team_minimap(buf) {
let view = new DataView(buf);
let len = view.getUint16(0);
let offset = 2;
for (let i = 0; i < len; i++) {
let id = view.getUint32(offset);
let x = view.getUint8(offset + 4);
let y = view.getUint8(offset + 5);
let color = view.getUint8(offset + 6);
this.team_minimap[id] = { x, y, color };
offset += 7;
}
}
draw_global_minimap(ctx, rx, ry, norm_to_canvas) {
// do global first
ctx.globalAlpha = 0.5;
for (const [id, global_mmap_obj] of Object.entries(this.global_minimap)) {
const { x, y, color, type, size } = global_mmap_obj;
const { cx, cy } = norm_to_canvas(x, y);
ctx.fillStyle = COLOR_ID_MAP[color] || 'black';
switch (type) {
case 0: // boss, rock
case 1: {
ctx.beginPath();
ctx.arc(cx, cy, size * c_factor, 0, 2 * Math.PI);
ctx.fill();
ctx.closePath();
break;
}
// wall
case 2: {
let c_size = 2 * size * c_factor + 0.5;
ctx.fillRect_c(cx, cy, c_size, c_size);
break;
}
}
}
ctx.globalAlpha = 1.0;
}
draw(ctx, room_info) {
// console.log(`team minimap length: ${Object.keys(this.team_minimap).length}`);
const { x_min, y_min, x_max, y_max } = room_info;
// minimap
ctx.strokeStyle = 'black';
ctx.lineWidth = 2;
// -x -y to +x +y (room)
// divide by 10
let rx = x_max - x_min;
let ry = y_max - y_min;
let c_rx = rx * c_factor;
let c_ry = ry * c_factor;
// define a function to convert norm x,y to canvas x,y
const norm_to_canvas = (nx, ny) => {
return {
cx: (nx - 0.5) * c_rx,
cy: (ny - 0.5) * c_ry,
};
};
this.draw_global_minimap(ctx, rx, ry, norm_to_canvas);
this.draw_team_minimap(ctx, norm_to_canvas);
}
draw_team_minimap(ctx, norm_to_canvas) {
ctx.font = 'bold 10px Ubuntu';
let queued_draws = [];
for (const [id, team_mmap_obj] of Object.entries(this.team_minimap)) {
let { x, y, color } = team_mmap_obj;
x /= 255;
y /= 255;
// get the lb obj
const lb_obj = this.leaderboard.get(Number(id));
let text = '';
if (lb_obj) {
const { name, score, mockup_index } = lb_obj;
let mockup_name = window.mockups.get_mockup_name(mockup_index);
text = `${name} | ${mockup_name} | ${make_score_str(score)}`;
}
const { cx, cy } = norm_to_canvas(x, y);
let is_target = target_id === Number(id);
if (is_target) {
window.target_player.update_target(x, y, color);
}
let score = lb_obj?.score;
if (id == window.game_update.player.entity_id) {
color = 19; // black
score = 1e5;
window.target_player.update_self(x, y);
}
let q = draw_minimap_dot(ctx, cx, cy, color, score, is_target);
if (q) {
queued_draws.push(q);
}
if (text) {
// ctx.fillText(text, cx, cy);
}
}
ctx.strokeStyle = 'black';
ctx.lineWidth = 2;
for (const q of queued_draws) {
let {x, y, radius, alpha} = q;
radius *= 1.5;
ctx.globalAlpha = alpha;
let base_angle = curr_t / 5;
for (let i = 0; i < 4; i++) {
let angle = base_angle + i * Math.PI / 2;
let dx = Math.cos(angle) * radius;
let dy = Math.sin(angle) * radius;
ctx.beginPath();
ctx.moveTo(x, y);
ctx.lineTo(x + dx, y + dy);
ctx.stroke();
ctx.closePath();
}
ctx.globalAlpha = 1;
}
}
parse_broadcast_packet(packet, room_info) {
let r = new Rotator(packet);
// console.log(packet);
this.parse_global_minimap_dels(r);
this.parse_global_minimap(r);
this.parse_team_minimap_dels(r);
this.parse_team_minimap(r);
this.parse_leaderboard_dels(r);
this.parse_leaderboard(r);
}
parse_global_minimap_dels(r) {
let len = r.next;
for (let iter = 0; iter < len; iter++) {
delete this.global_minimap[r.next];
}
}
parse_global_minimap(r) {
let len = r.next;
for (let iter = 0; iter < len; iter++) {
this.global_minimap[r.next] = {
type: r.next,
x: r.next_n255,
y: r.next_n255,
color: r.next,
size: r.next,
};
}
}
parse_team_minimap_dels(r) {
let len = r.next;
for (let iter = 0; iter < len; iter++) {
delete this.team_minimap[r.next];
}
}
parse_team_minimap(r) {
let len = r.next;
for (let iter = 0; iter < len; iter++) {
let id = r.next;
this.team_minimap[id] = {
x: r.next,
y: r.next,
color: r.next,
};
}
}
parse_leaderboard_dels(r) {
let len = r.next;
for (let iter = 0; iter < len; iter++) {
this.leaderboard.delete(r.next);
}
}
parse_leaderboard(r) {
let len = r.next;
for (let iter = 0; iter < len; iter++) {
this.leaderboard.set(r.next, {
score: r.next,
mockup_index: r.next,
name: r.str_sm5,
color: r.next,
bar_color: r.next,
});
}
// sort by score, descending
this.leaderboard = new Map([...this.leaderboard.entries()].sort((a, b) => b[1].score - a[1].score));
}
}
class RoomInfo {
constructor() {
this.x_min = 0;
this.y_min = 0;
this.x_max = 0;
this.y_max = 0;
this.x_size = 0;
this.y_size = 0;
this.wall_size = 1e9;
this.walls_init = false;
this.layout = [];
}
// normalized [0,1] (may be slightly outside bounds) to grid coord (0 to xsize, 0 to ysize)
normalized_coord_to_grid_coord(nx, ny) {
return {
gx: Math.floor(nx * (this.x_size - 2)) + 1,
gy: Math.floor(ny * (this.y_size - 2)) + 1,
};
}
// invert
grid_coord_to_normalized_coord(gx, gy) {
return {
nx: (gx-1) / (this.x_size - 2),
ny: (gy-1) / (this.y_size - 2),
}
}
grid_coord_to_global_coord(gx, gy) {
let { nx, ny } = this.grid_coord_to_normalized_coord(gx, gy);
return {
gx: (nx - 0.5) * this.x_size,
gy: (ny - 0.5) * this.y_size,
};
}
draw(ctx) {
const { x_min, y_min, x_max, y_max } = this;
let rx = x_max - x_min;
let ry = y_max - y_min;
let wx = rx / (this.x_size);
let wy = ry / (this.y_size);
let c_rx = rx * c_factor;
let c_ry = ry * c_factor;
// minimap
ctx.strokeStyle = 'black';
ctx.lineWidth = 2;
ctx.globalAlpha = bg_opacity;
ctx.fillStyle = BG_COLOR;
ctx.fillRect_c(0, 0, c_rx, c_ry);
ctx.strokeRect_c(0, 0, c_rx, c_ry);
ctx.globalAlpha = 1;
}
parse_room_packet(packet) {
// x min, y min, x max, y max, ?, ?, size_x, size_y, ...
this.x_min = packet[0];
this.y_min = packet[1];
this.x_max = packet[2];
this.y_max = packet[3];
console.log(`room bounds: ${this.x_min}, ${this.y_min}, ${this.x_max}, ${this.y_max}`);
console.log(`first 10 packet: ${packet.slice(0, 10)}`);
let sx = packet[6];
let sy = packet[7];
// at their smallest, walls are half the size - so we need to double the size
// we also include outer edge tiles (i.e. 2 extra, 1 on each side), since players can go there as well
this.x_size = sx * 2 + 2;
this.y_size = sy * 2 + 2;
console.log(`true layout size: ${sx}, ${sy}`);
let layout = [];
// allocate the layout sx by sy (2d array)
for (let x = 0; x < this.x_size; x++) {
layout.push([]);
for (let y = 0; y < this.y_size; y++) {
layout[x].push(1);
}
}
let offset = 8;
for (let x = 0; x < sx; x++) {
for (let y = 0; y < sy; y++) {
let p_index = offset + x * sy + y;
let val = packet[p_index];
if (!val) val = 18;
for (let i = 0; i < 2; i++) {
for (let j = 0; j < 2; j++) {
let x_ = 1 + 2*x+i;
let y_ = 1 + 2*y+j;
layout[y_][x_] = val == 18? 1 : val;
}
}
}
}
this.layout = layout;
}
}
class Mockups {
constructor() {
this.mockups = new Map();
}
get_mockup_name(id) {
return this.mockups.get(id) || 'Unknown Entity';
}
parse_mockup_packet(packet) {
let strs = extract_strings(packet);
for (let s of strs) {
const { start, end, string } = s;
if (string.length > 2) {
// loc.start - 2 is the mockup id
let mockup_id = packet[start - 2];
if (!this.mockups.has(mockup_id)) {
this.mockups.set(mockup_id, string);
}
}
}
// sort the mockups by id
let sorted_mockups = Array.from(this.mockups.entries()).sort((a, b) => a[0] - b[0]);
this.mockups = new Map(sorted_mockups);
}
}
class Entity {
constructor() {
this.x = undefined;
this.y = undefined;
this.angle = undefined;
this.mockup_id = 0;
// rendering flags probably (i.e. dmg immunity flash, etc)
this.flags = 0;
this.health = 255;
this.shield = 255;
this.opacity = 255;
this.size = 0;
this.score = 0;
this.name = "";
this.color_id = 0;
this.type = 0;
}
}
class Player {
constructor() {
this.x = 0;
this.y = 0;
this.fov = 0;
this.mockup_id = 0;
this.color_id = undefined;
this.entity_id = 0;
this.score = 0;
}
}
class GameUpdate {
constructor() {
this.player = new Player();
this.entities = new Map();
}
parse_update_packet(packet) {
let r = new Rotator(packet);
let res = this.parse_player(r);
if (!res) return;
let next;
// read until -1
while ((next = r.next) != -1) {
// do nothing
}
this.parse_deleted_entities(r);
this.parse_updated_entities(r);
}
parse_player(r) {
this.player.x = r.next;
this.player.y = r.next;
this.player.fov = r.next;
if (r.eop) return false;
let flags = r.next;
if (flags === 4094) {
r.skip(1);
this.player.mockup_id = r.next;
r.skip(1);
this.player.color_id = r.next;
this.player.entity_id = r.next;
this.player.score = r.next;
}
return true;
}
parse_deleted_entities(r) {
let deleted_entities = [];
let next;
while ((next = r.next) != -1) {
deleted_entities.push(next);
}
for (let id of deleted_entities) {
this.entities.delete(id);
}
}
parse_updated_entities(r, self_only = false) {
while (!r.eop) {
let id = r.next;
let entity = this.entities.get(id) ?? new Entity();
let is_self = id === this.player.entity_id;
if (self_only && !is_self) {
continue;
}
entity = this.parse_entity(entity, r);
if (is_self) {
// copy all properties to player
for (let key in entity) {
this.player[key] = entity[key];
}
our_pos = {x: this.player.x, y: this.player.y};
}
this.entities.set(id, entity);
}
}
parse_entity(entity, r) {
let flags = r.next;
let next;
if (flags & (1<<0)) {
let dx = r.next / 4;
let dy = r.next / 4;
if (entity.x === undefined || entity.y === undefined) {
entity.x = dx;
entity.y = dy;
} else {
entity.x += dx;
entity.y += dy;
}
}
if (flags & (1<<1)) {
let v = r.next * Math.PI / 512;
entity.angle = (entity.angle === undefined) ? v : entity.angle + v;
}
if (flags & (1<<2)) {
entity.mockup_id = r.next;
}
if (flags & (1<<3)) {
let l = r.index;
while ((next = r.next) !== -1) {
let gun_index = next;
let gun_flags = r.next;
let time, power;
if (gun_flags & (1<<0)) { time = r.next; }
if (gun_flags & (1<<1)) { power = r.next; }
}
}
if (flags & (1<<4)) {
while ((next = r.next) !== -1) {
let turret_index = next;
let _ = this.parse_entity(new Entity(), r, false);
}
}
if (flags & (1<<5)) { entity.flags = r.next; }
if (flags & (1<<6)) { entity.health = r.next; }
if (flags & (1<<7)) { entity.shield = r.next; }
if (flags & (1<<8)) { entity.opacity = r.next; }
if (flags & (1<<9)) { entity.size = r.abs_next * 0.0625; }
if (flags & (1<<10)) { entity.score = r.next; }
if (flags & (1<<11)) { entity.name = r.str_sm5; }
if (flags & (1<<12)) { entity.color_id = r.next; }
if (flags & (1<<13)) { entity.type = r.next; }
return entity;
}
}
class TargetPlayer {
constructor() {
this.x = null;
this.y = null;
this.color = null;
this.px = null;
this.py = null;
this.last_x = null;
this.last_y = null;
this.last_px = null;
this.last_py = null;
this.has_target = false;
this.result = null;
this.last_tile = {};
}
get updated_positions() {
return this.x !== this.last_x || this.y !== this.last_y || this.px !== this.last_px || this.py !== this.last_py;
}
get updated_self_positions() {
return this.px !== this.last_px || this.py !== this.last_py;
}
get updated_target_positions() {
return this.x !== this.last_x || this.y !== this.last_y;
}
update_lasts() {
this.last_x = this.x;
this.last_y = this.y;
this.last_px = this.px;
this.last_py = this.py;
}
update_self(nx, ny) {
let res = window.room_info.normalized_coord_to_grid_coord(nx, ny);
this.px = clamp(res.gx, 0, window.room_info.x_size - 1);
this.py = clamp(res.gy, 0, window.room_info.y_size - 1);
}
peace() {
this.has_target = false;
}
}
class Rotator {
constructor(packet, index = 0) {
this.packet = packet;
this._index = index;
}
get index() {
return this._index;
}
set index(index) {
this._index = index;
}
get next() {
return this.packet[this._index++];
}
// next / 255
get next_n255() {
return this.next / 255;
}
get abs_next() {
return Math.abs(this.next);
}
get undo() {
return this.packet[--this._index];
}
// skip n vals
skip(n) {
this._index += n;
}
// w/ len.
str(len) {
if (len > 1000) {
console.log(`WARNING: string length is ${len}, skipping`);
this.skip(len);
return '';
}
let remaining = len;
let s = '';
while (remaining > 0) {
let a = this.next;
let b = this.next;
if (-64 <= b && b < 0 && !(16 < a && a < 160)) {
s += "💀"; // still dont have the full algo so im just gotta put a skull here as long as the length is right
if (a > 3000) { // to be exact the smallest a for 4 byte is 36992, but lets just put 3000 here
remaining -= 4;
} else if (-16 <= a && a < 16) {
remaining -= 2;
} else {
remaining -= 3;
}
// u+7ff or less, -2 bytes
} else {
s += String.fromCharCode(a);
this.undo;
remaining--;
}
}
return s;
}
// 5 bit sign-magnitude
get str_sm5() {
let len = this.next;
if (len < 0) {
len = 32 + len;
}
return this.str(len);
}
get eop() {
return this._index >= this.packet.length;
}
}
})();