mirror of
https://github.com/NohamR/Pocket-Bird.git
synced 2026-05-24 19:59:36 +00:00
1024 lines
27 KiB
JavaScript
1024 lines
27 KiB
JavaScript
import Frame from './frame.js';
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import Layer from './layer.js';
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import Anim from './anim.js';
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import { Birb, Animations } from './birb.js';
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import {
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Directions,
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isDebug,
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setDebug,
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makeElement,
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onClick,
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makeDraggable,
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makeClosable,
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isMobile,
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log,
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debug,
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error
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} from './shared.js';
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import {
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SPRITE,
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SPRITE_SHEET_COLOR_MAP,
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SPECIES
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} from './sprites.js';
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import {
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StickyNote,
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createNewStickyNote,
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drawStickyNotes
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} from './stickyNotes.js';
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import {
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MenuItem,
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DebugMenuItem,
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Separator,
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insertMenu,
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removeMenu,
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isMenuOpen,
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switchMenuItems,
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MENU_EXIT_ID
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} from './menu.js';
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/**
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* @typedef {import('./stickyNotes.js').SavedStickyNote} SavedStickyNote
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*/
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/**
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* @typedef {Object} BirbSaveData
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* @property {string[]} unlockedSpecies
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* @property {string} currentSpecies
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* @property {Partial<Settings>} settings
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* @property {SavedStickyNote[]} [stickyNotes]
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*/
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/**
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* @typedef {typeof DEFAULT_SETTINGS} Settings
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*/
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const DEFAULT_SETTINGS = {
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birbMode: false
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};
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// Rendering constants
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const SPRITE_WIDTH = 32;
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const SPRITE_HEIGHT = 32;
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const FEATHER_SPRITE_WIDTH = 32;
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const BIRB_CSS_SCALE = 1;
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const UI_CSS_SCALE = isMobile() ? 0.9 : 1;
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const CANVAS_PIXEL_SIZE = 1;
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const WINDOW_PIXEL_SIZE = CANVAS_PIXEL_SIZE * BIRB_CSS_SCALE;
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// Build-time assets
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const STYLESHEET = `___STYLESHEET___`;
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const SPRITE_SHEET = "__SPRITE_SHEET__";
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const FEATHER_SPRITE_SHEET = "__FEATHER_SPRITE_SHEET__";
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// Element IDs
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const FIELD_GUIDE_ID = "birb-field-guide";
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const FEATHER_ID = "birb-feather";
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const DEFAULT_BIRD = "bluebird";
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// Birb movement
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const HOP_SPEED = 0.07;
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const FLY_SPEED = isMobile() ? 0.125 : 0.25;
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const HOP_DISTANCE = 45;
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// Timing constants (in milliseconds)
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const UPDATE_INTERVAL = 1000 / 60; // 60 FPS
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const AFK_TIME = isDebug() ? 0 : 1000 * 30;
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const PET_BOOST_DURATION = 1000 * 60 * 5;
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const PET_MENU_COOLDOWN = 1000;
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const URL_CHECK_INTERVAL = 500;
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// Random event chances per tick
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const HOP_CHANCE = 1 / (60 * 3); // Every 3 seconds
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const FOCUS_SWITCH_CHANCE = 1 / (60 * 20); // Every 20 seconds
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const FEATHER_CHANCE = 1 / (60 * 60 * 60 * 2); // Every 2 hours
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// Feathers
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const FEATHER_FALL_SPEED = 1;
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const PET_FEATHER_BOOST = 2;
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// Focus element constraints
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const MIN_FOCUS_ELEMENT_WIDTH = 100;
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const MIN_FOCUS_ELEMENT_TOP = 80;
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/** @type {Partial<Settings>} */
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let userSettings = {};
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/**
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* Load the sprite sheet and return the pixel-map template
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* @param {string} dataUri
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* @param {boolean} [templateColors]
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* @returns {Promise<string[][]>}
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*/
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function loadSpriteSheetPixels(dataUri, templateColors = true) {
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return new Promise((resolve, reject) => {
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const img = new Image();
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img.src = dataUri;
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img.onload = () => {
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const canvas = document.createElement('canvas');
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canvas.width = img.width;
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canvas.height = img.height;
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const ctx = canvas.getContext('2d');
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if (!ctx) {
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reject(new Error('Failed to get canvas context'));
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return;
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}
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ctx.drawImage(img, 0, 0);
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const imageData = ctx.getImageData(0, 0, img.width, img.height);
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const pixels = imageData.data;
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const hexArray = [];
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for (let y = 0; y < img.height; y++) {
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const row = [];
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for (let x = 0; x < img.width; x++) {
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const index = (y * img.width + x) * 4;
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const r = pixels[index];
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const g = pixels[index + 1];
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const b = pixels[index + 2];
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const a = pixels[index + 3];
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if (a === 0) {
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row.push(SPRITE.TRANSPARENT);
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continue;
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}
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const hex = `#${((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1)}`;
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if (!templateColors) {
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row.push(hex);
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continue;
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}
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if (SPRITE_SHEET_COLOR_MAP[hex] === undefined) {
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error(`Unknown color: ${hex}`);
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row.push(SPRITE.TRANSPARENT);
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}
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row.push(SPRITE_SHEET_COLOR_MAP[hex]);
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}
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hexArray.push(row);
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}
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resolve(hexArray);
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};
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img.onerror = (err) => {
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reject(err);
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};
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});
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}
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log("Loading sprite sheets...");
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Promise.all([
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loadSpriteSheetPixels(SPRITE_SHEET),
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loadSpriteSheetPixels(FEATHER_SPRITE_SHEET)
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]).then(([birbPixels, featherPixels]) => {
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const SPRITE_SHEET = birbPixels;
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const FEATHER_SPRITE_SHEET = featherPixels;
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const featherLayers = {
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feather: new Layer(getLayer(FEATHER_SPRITE_SHEET, 0, FEATHER_SPRITE_WIDTH)),
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};
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const featherFrames = {
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feather: new Frame([featherLayers.feather]),
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};
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const FEATHER_ANIMATIONS = {
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feather: new Anim([
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featherFrames.feather,
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], [
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1000,
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]),
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};
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const menuItems = [
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new MenuItem(`Pet ${birdBirb()}`, pet),
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new MenuItem("Field Guide", insertFieldGuide),
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new MenuItem("Sticky Note", () => createNewStickyNote(stickyNotes, save, deleteStickyNote)),
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new MenuItem(`Hide ${birdBirb()}`, hideBirb),
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new DebugMenuItem("Freeze/Unfreeze", () => {
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frozen = !frozen;
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}),
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new DebugMenuItem("Reset Data", resetSaveData),
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new DebugMenuItem("Unlock All", () => {
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for (let type in SPECIES) {
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unlockBird(type);
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}
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}),
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new DebugMenuItem("Disable Debug", () => {
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setDebug(false);
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}),
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new Separator(),
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new MenuItem("Settings", () => switchMenuItems(settingsItems, updateMenuLocation), false),
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];
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const settingsItems = [
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new MenuItem("Go Back", () => switchMenuItems(menuItems, updateMenuLocation), false),
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new Separator(),
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new MenuItem("Toggle Birb Mode", () => {
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userSettings.birbMode = !userSettings.birbMode;
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save();
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insertModal(`${birdBirb()} Mode`, `Your ${birdBirb().toLowerCase()} shall now be referred to as "${birdBirb()}"${userSettings.birbMode ? "\n\nWelcome back to 2012" : ""}`);
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})
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];
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const styleElement = document.createElement("style");
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/** @type {Birb} */
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let birb;
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const States = {
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IDLE: "idle",
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HOP: "hop",
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FLYING: "flying",
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};
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let frozen = false;
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let stateStart = Date.now();
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let currentState = States.IDLE;
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let ticks = 0;
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// Bird's current position
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let birdY = 0;
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let birdX = 40;
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// Bird's starting position (when flying)
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let startX = 0;
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let startY = 0;
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// Bird's target position (when flying)
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let targetX = 0;
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let targetY = 0;
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/** @type {HTMLElement|null} */
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let focusedElement = null;
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let focusedBounds = { left: 0, right: 0, top: 0 };
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let lastActionTimestamp = Date.now();
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/** @type {number[]} */
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let petStack = [];
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let currentSpecies = DEFAULT_BIRD;
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let unlockedSpecies = [DEFAULT_BIRD];
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let visible = true;
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let lastPetTimestamp = 0;
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/** @type {StickyNote[]} */
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let stickyNotes = [];
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/**
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* @returns {boolean} Whether the script is running in a userscript extension context
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*/
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function isUserScript() {
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// @ts-expect-error
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return typeof GM_getValue === "function";
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}
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function isTestEnvironment() {
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return window.location.hostname === "127.0.0.1"
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|| window.location.hostname === "localhost"
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|| window.location.hostname.startsWith("192.168.");
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}
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function load() {
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/** @type {Record<string, any>} */
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let saveData = {};
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if (isUserScript()) {
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log("Loading save data from UserScript storage");
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// @ts-expect-error
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saveData = GM_getValue("birbSaveData", {}) ?? {};
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} else if (isTestEnvironment()) {
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log("Test environment detected, loading save data from localStorage");
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saveData = JSON.parse(localStorage.getItem("birbSaveData") ?? "{}");
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} else {
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log("Not a UserScript");
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}
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debug("Loaded data: " + JSON.stringify(saveData));
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if (!saveData.settings) {
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log("No user settings found in save data, starting fresh");
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}
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userSettings = saveData.settings ?? {};
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unlockedSpecies = saveData.unlockedSpecies ?? [DEFAULT_BIRD];
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currentSpecies = saveData.currentSpecies ?? DEFAULT_BIRD;
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stickyNotes = [];
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if (saveData.stickyNotes) {
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for (let note of saveData.stickyNotes) {
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if (note.id) {
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stickyNotes.push(new StickyNote(note.id, note.site, note.content, note.top, note.left));
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}
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}
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}
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log(stickyNotes.length + " sticky notes loaded");
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switchSpecies(currentSpecies);
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}
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function save() {
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/** @type {BirbSaveData} */
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const saveData = {
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unlockedSpecies,
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currentSpecies,
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settings: userSettings
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};
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if (stickyNotes.length > 0) {
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saveData.stickyNotes = stickyNotes.map(note => ({
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id: note.id,
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site: note.site,
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content: note.content,
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top: note.top,
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left: note.left
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}));
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}
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if (isUserScript()) {
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log("Saving data to UserScript storage");
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// @ts-expect-error
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GM_setValue("birbSaveData", saveData);
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} else if (isTestEnvironment()) {
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log("Test environment detected, saving data to localStorage");
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localStorage.setItem("birbSaveData", JSON.stringify(saveData));
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} else {
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log("Not a UserScript");
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}
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}
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function resetSaveData() {
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if (isUserScript()) {
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log("Resetting save data in UserScript storage");
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// @ts-expect-error
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GM_deleteValue("birbSaveData");
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} else if (isTestEnvironment()) {
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log("Test environment detected, resetting save data in localStorage");
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localStorage.removeItem("birbSaveData");
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} else {
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log("Not a UserScript");
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}
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load();
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}
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/**
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* Get the user settings merged with default settings
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* @returns {Settings} The merged settings
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*/
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function settings() {
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return { ...DEFAULT_SETTINGS, ...userSettings };
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}
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/**
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* Bird or birb, you decide
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*/
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function birdBirb() {
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return settings().birbMode ? "Birb" : "Bird";
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}
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function init() {
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if (window !== window.top) {
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// Skip installation if within an iframe
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log("In iframe, skipping Birb script initialization");
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return;
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}
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log("Sprite sheets loaded successfully, initializing bird...");
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// Preload font
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const MONOCRAFT_SRC = "https://cdn.jsdelivr.net/gh/idreesinc/Monocraft@99b32ab40612ff2533a69d8f14bd8b3d9e604456/dist/Monocraft.otf";
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const fontLink = document.createElement("link");
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fontLink.rel = "stylesheet";
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fontLink.href = `url(${MONOCRAFT_SRC}) format('opentype')`;
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document.head.appendChild(fontLink);
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// Add stylesheet font-face
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const fontFace = `
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@font-face {
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font-family: 'Monocraft';
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src: url(${MONOCRAFT_SRC}) format('opentype');
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font-weight: normal;
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font-style: normal;
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}
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`;
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const fontStyle = document.createElement("style");
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fontStyle.innerHTML = fontFace;
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document.head.appendChild(fontStyle);
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load();
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styleElement.innerHTML = STYLESHEET;
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document.head.appendChild(styleElement);
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birb = new Birb(BIRB_CSS_SCALE, CANVAS_PIXEL_SIZE, SPRITE_SHEET, SPRITE_WIDTH, SPRITE_HEIGHT);
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birb.setAnimation(Animations.BOB);
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window.addEventListener("scroll", () => {
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lastActionTimestamp = Date.now();
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});
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onClick(document, (e) => {
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lastActionTimestamp = Date.now();
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if (e.target instanceof Node && document.querySelector("#" + MENU_EXIT_ID)?.contains(e.target)) {
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removeMenu();
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}
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});
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const birbElement = birb.getElement();
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onClick(birbElement, () => {
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if (birb.getCurrentAnimation() === Animations.HEART && (Date.now() - lastPetTimestamp < PET_MENU_COOLDOWN)) {
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// Currently being pet, don't open menu
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return;
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}
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insertMenu(menuItems, `${birdBirb().toLowerCase()}OS`, updateMenuLocation);
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});
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birbElement.addEventListener("mouseover", () => {
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lastActionTimestamp = Date.now();
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if (currentState === States.IDLE) {
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petStack.push(Date.now());
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if (petStack.length > 10) {
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petStack.shift();
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}
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const pets = petStack.filter((time) => Date.now() - time < 1000).length;
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if (pets >= 3) {
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pet();
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// Clear the stack
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petStack = [];
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}
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}
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});
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birbElement.addEventListener("touchmove", (e) => {
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pet();
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});
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drawStickyNotes(stickyNotes, save, deleteStickyNote);
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let lastUrl = (window.location.href ?? "").split("?")[0];
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setInterval(() => {
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const currentUrl = (window.location.href ?? "").split("?")[0];
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if (currentUrl !== lastUrl) {
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log("URL changed, updating sticky notes");
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lastUrl = currentUrl;
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drawStickyNotes(stickyNotes, save, deleteStickyNote);
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}
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}, URL_CHECK_INTERVAL);
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setInterval(update, UPDATE_INTERVAL);
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}
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function update() {
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ticks++;
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// Hide bird if the browser is fullscreen
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if (document.fullscreenElement) {
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hideBirb();
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// Won't be restored on fullscreen exit
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}
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if (currentState === States.IDLE && !frozen && !isMenuOpen()) {
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if (Math.random() < HOP_CHANCE && birb.getCurrentAnimation() !== Animations.HEART) {
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hop();
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} else if (Date.now() - lastActionTimestamp > AFK_TIME) {
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// Idle for a while, do something
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if (focusedElement === null) {
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// Fly to an element
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focusOnElement();
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lastActionTimestamp = Date.now();
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} else if (Math.random() < FOCUS_SWITCH_CHANCE) {
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// Fly to another element if idle for a longer while
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focusOnElement();
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lastActionTimestamp = Date.now();
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}
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}
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} else if (currentState === States.HOP) {
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if (updateParabolicPath(HOP_SPEED)) {
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setState(States.IDLE);
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}
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}
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// Double the chance of a feather if recently pet
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const petMod = Date.now() - lastPetTimestamp < PET_BOOST_DURATION ? PET_FEATHER_BOOST : 1;
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if (visible && Math.random() < FEATHER_CHANCE * petMod) {
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lastPetTimestamp = 0;
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activateFeather();
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}
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updateFeather();
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}
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function draw() {
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requestAnimationFrame(draw);
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if (!birb.isVisible()) {
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return;
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}
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updateFocusedElementBounds();
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// Update the bird's position
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if (currentState === States.IDLE) {
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if (focusedElement && !isWithinHorizontalBounds()) {
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focusOnGround();
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}
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birdY = getFocusedY();
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} else if (currentState === States.FLYING) {
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// Fly to target location (even if in the air)
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if (updateParabolicPath(FLY_SPEED)) {
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setState(States.IDLE);
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}
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}
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const oldTargetY = targetY;
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targetY = getFocusedY();
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// Adjust startY to account for scrolling
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startY += targetY - oldTargetY;
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if (targetY < 0 || targetY > window.innerHeight) {
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// Fly to ground if the focused element moves out of bounds
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focusOnGround();
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}
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if (birb.draw(SPECIES[currentSpecies])) {
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birb.setAnimation(Animations.STILL);
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}
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// Update HTML element position
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birb.setX(birdX);
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birb.setY(birdY);
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}
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|
|
/**
|
|
* @param {StickyNote} stickyNote
|
|
*/
|
|
function deleteStickyNote(stickyNote) {
|
|
stickyNotes = stickyNotes.filter(note => note.id !== stickyNote.id);
|
|
save();
|
|
}
|
|
|
|
/**
|
|
* Create a window element with header and content
|
|
* @param {string} id
|
|
* @param {string} title
|
|
* @param {string} contentHtml
|
|
* @param {() => void} [onClose]
|
|
* @returns {HTMLElement}
|
|
*/
|
|
function createWindow(id, title, contentHtml, onClose) {
|
|
const window = makeElement("birb-window", undefined, id);
|
|
window.innerHTML = `
|
|
<div class="birb-window-header">
|
|
<div class="birb-window-title">${title}</div>
|
|
<div class="birb-window-close">x</div>
|
|
</div>
|
|
<div class="birb-window-content">
|
|
${contentHtml}
|
|
</div>
|
|
`;
|
|
|
|
document.body.appendChild(window);
|
|
makeDraggable(window.querySelector(".birb-window-header"));
|
|
|
|
const closeButton = window.querySelector(".birb-window-close");
|
|
if (closeButton) {
|
|
makeClosable(() => {
|
|
if (onClose) {
|
|
onClose();
|
|
}
|
|
window.remove();
|
|
}, closeButton);
|
|
}
|
|
|
|
return window;
|
|
}
|
|
|
|
function activateFeather() {
|
|
if (document.querySelector("#" + FEATHER_ID)) {
|
|
return;
|
|
}
|
|
const speciesToUnlock = Object.keys(SPECIES).filter((species) => !unlockedSpecies.includes(species));
|
|
if (speciesToUnlock.length === 0) {
|
|
// No more species to unlock
|
|
return;
|
|
}
|
|
const birdType = speciesToUnlock[Math.floor(Math.random() * speciesToUnlock.length)];
|
|
insertFeather(birdType);
|
|
}
|
|
|
|
/**
|
|
* @param {string} birdType
|
|
*/
|
|
function insertFeather(birdType) {
|
|
let type = SPECIES[birdType];
|
|
const featherCanvas = document.createElement("canvas");
|
|
featherCanvas.id = FEATHER_ID;
|
|
featherCanvas.classList.add("birb-decoration");
|
|
featherCanvas.width = FEATHER_SPRITE_WIDTH * CANVAS_PIXEL_SIZE;
|
|
featherCanvas.height = FEATHER_SPRITE_WIDTH * CANVAS_PIXEL_SIZE;
|
|
const x = featherCanvas.width * 2 + Math.random() * (window.innerWidth - featherCanvas.width * 4);
|
|
featherCanvas.style.marginLeft = `${x}px`;
|
|
featherCanvas.style.top = `${-featherCanvas.height}px`;
|
|
const featherCtx = featherCanvas.getContext("2d");
|
|
if (!featherCtx) {
|
|
return;
|
|
}
|
|
FEATHER_ANIMATIONS.feather.draw(featherCtx, Directions.LEFT, Date.now(), CANVAS_PIXEL_SIZE, type);
|
|
document.body.appendChild(featherCanvas);
|
|
onClick(featherCanvas, () => {
|
|
unlockBird(birdType);
|
|
removeFeather();
|
|
if (document.querySelector("#" + FIELD_GUIDE_ID)) {
|
|
removeFieldGuide();
|
|
insertFieldGuide();
|
|
}
|
|
});
|
|
}
|
|
|
|
function removeFeather() {
|
|
const feather = document.querySelector("#" + FEATHER_ID);
|
|
if (feather) {
|
|
feather.remove();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {string} birdType
|
|
*/
|
|
function unlockBird(birdType) {
|
|
if (!unlockedSpecies.includes(birdType)) {
|
|
unlockedSpecies.push(birdType);
|
|
insertModal("New Bird Unlocked!", `You've found a <b>${SPECIES[birdType].name}</b> feather! Use the Field Guide to switch your bird's species.`);
|
|
}
|
|
save();
|
|
}
|
|
|
|
function updateFeather() {
|
|
const feather = document.querySelector("#birb-feather");
|
|
if (!feather || !(feather instanceof HTMLElement)) {
|
|
return;
|
|
}
|
|
const y = parseInt(feather.style.top || "0") + FEATHER_FALL_SPEED;
|
|
feather.style.top = `${Math.min(y, window.innerHeight - feather.offsetHeight)}px`;
|
|
if (y < window.innerHeight - feather.offsetHeight) {
|
|
feather.style.left = `${Math.sin(3.14 * 2 * (ticks / 120)) * 25}px`;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {HTMLElement} element
|
|
*/
|
|
function centerElement(element) {
|
|
element.style.left = `${window.innerWidth / 2 - element.offsetWidth / 2}px`;
|
|
element.style.top = `${window.innerHeight / 2 - element.offsetHeight / 2}px`;
|
|
}
|
|
|
|
/**
|
|
* @param {string} title
|
|
* @param {string} message
|
|
*/
|
|
function insertModal(title, message) {
|
|
if (document.querySelector("#" + FIELD_GUIDE_ID)) {
|
|
return;
|
|
}
|
|
|
|
const modal = createWindow("birb-modal", title, `
|
|
<div class="birb-message-content">
|
|
${message}
|
|
</div>
|
|
`);
|
|
|
|
modal.style.width = "270px";
|
|
centerElement(modal);
|
|
}
|
|
|
|
/**
|
|
* @param {HTMLElement} menu
|
|
*/
|
|
function updateMenuLocation(menu) {
|
|
let x = birdX;
|
|
let y = birb.getElementTop() + birb.getElementHeight() / 2 + WINDOW_PIXEL_SIZE * 10;
|
|
const offset = 20;
|
|
if (x < window.innerWidth / 2) {
|
|
// Left side
|
|
x += offset;
|
|
} else {
|
|
// Right side
|
|
x -= (menu.offsetWidth + offset) * UI_CSS_SCALE;
|
|
}
|
|
if (y > window.innerHeight / 2) {
|
|
// Top side
|
|
y -= (menu.offsetHeight + offset + 10) * UI_CSS_SCALE;
|
|
} else {
|
|
// Bottom side
|
|
y += offset;
|
|
}
|
|
menu.style.left = `${x}px`;
|
|
menu.style.top = `${y}px`;
|
|
};
|
|
|
|
function insertFieldGuide() {
|
|
if (document.querySelector("#" + FIELD_GUIDE_ID)) {
|
|
return;
|
|
}
|
|
let html = `
|
|
<div class="birb-window-header">
|
|
<div class="birb-window-title">Field Guide</div>
|
|
<div class="birb-window-close">x</div>
|
|
</div>
|
|
<div class="birb-window-content">
|
|
<div class="birb-grid-content"></div>
|
|
<div class="birb-field-guide-description"></div>
|
|
</div>`
|
|
const fieldGuide = makeElement("birb-window", undefined, FIELD_GUIDE_ID);
|
|
fieldGuide.innerHTML = html;
|
|
document.body.appendChild(fieldGuide);
|
|
makeDraggable(fieldGuide.querySelector(".birb-window-header"));
|
|
|
|
const closeButton = fieldGuide.querySelector(".birb-window-close");
|
|
if (closeButton) {
|
|
makeClosable(() => {
|
|
fieldGuide.remove();
|
|
}, closeButton);
|
|
}
|
|
|
|
const content = fieldGuide.querySelector(".birb-grid-content");
|
|
if (!content) {
|
|
return;
|
|
}
|
|
content.innerHTML = "";
|
|
|
|
const generateDescription = (/** @type {string} */ speciesId) => {
|
|
const type = SPECIES[speciesId];
|
|
const unlocked = unlockedSpecies.includes(speciesId);
|
|
return "<b>" + type.name + "</b><div style='height: 0.3em'></div>" + (!unlocked ? "Not yet unlocked" : type.description);
|
|
};
|
|
|
|
const description = fieldGuide.querySelector(".birb-field-guide-description");
|
|
if (!description) {
|
|
return;
|
|
}
|
|
description.innerHTML = generateDescription(currentSpecies);
|
|
for (const [id, type] of Object.entries(SPECIES)) {
|
|
const unlocked = unlockedSpecies.includes(id);
|
|
const speciesElement = makeElement("birb-grid-item");
|
|
if (id === currentSpecies) {
|
|
speciesElement.classList.add("birb-grid-item-selected");
|
|
}
|
|
const speciesCanvas = document.createElement("canvas");
|
|
speciesCanvas.width = SPRITE_WIDTH * CANVAS_PIXEL_SIZE;
|
|
speciesCanvas.height = SPRITE_HEIGHT * CANVAS_PIXEL_SIZE;
|
|
const speciesCtx = speciesCanvas.getContext("2d");
|
|
if (!speciesCtx) {
|
|
return;
|
|
}
|
|
birb.getFrames().base.draw(speciesCtx, Directions.RIGHT, CANVAS_PIXEL_SIZE, type);
|
|
speciesElement.appendChild(speciesCanvas);
|
|
content.appendChild(speciesElement);
|
|
if (unlocked) {
|
|
onClick(speciesElement, () => {
|
|
switchSpecies(id);
|
|
document.querySelectorAll(".birb-grid-item").forEach((element) => {
|
|
element.classList.remove("birb-grid-item-selected");
|
|
});
|
|
speciesElement.classList.add("birb-grid-item-selected");
|
|
});
|
|
} else {
|
|
speciesElement.classList.add("birb-grid-item-locked");
|
|
}
|
|
speciesElement.addEventListener("mouseover", () => {
|
|
log("mouseover");
|
|
description.innerHTML = generateDescription(id);
|
|
});
|
|
speciesElement.addEventListener("mouseout", () => {
|
|
description.innerHTML = generateDescription(currentSpecies);
|
|
});
|
|
}
|
|
centerElement(fieldGuide);
|
|
}
|
|
|
|
function removeFieldGuide() {
|
|
const fieldGuide = document.querySelector("#" + FIELD_GUIDE_ID);
|
|
if (fieldGuide) {
|
|
fieldGuide.remove();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {string} type
|
|
*/
|
|
function switchSpecies(type) {
|
|
currentSpecies = type;
|
|
// Update CSS variable --birb-highlight to be wing color
|
|
document.documentElement.style.setProperty("--birb-highlight", SPECIES[type].colors[SPRITE.THEME_HIGHLIGHT]);
|
|
save();
|
|
}
|
|
|
|
/**
|
|
* @param {string[][]} array
|
|
* @param {number} sprite
|
|
* @param {number} [width]
|
|
* @returns {string[][]}
|
|
*/
|
|
function getLayer(array, sprite, width = SPRITE_WIDTH) {
|
|
// From an array of a horizontal sprite sheet, get the layer for a specific sprite
|
|
const layer = [];
|
|
for (let y = 0; y < width; y++) {
|
|
layer.push(array[y].slice(sprite * width, (sprite + 1) * width));
|
|
}
|
|
return layer;
|
|
}
|
|
|
|
/**
|
|
* Update the birds location from the start to the target location on a parabolic path
|
|
* @param {number} speed The speed of the bird along the path
|
|
* @param {number} [intensity] The intensity of the parabolic path
|
|
* @returns {boolean} Whether the bird has reached the target location
|
|
*/
|
|
function updateParabolicPath(speed, intensity = 2.5) {
|
|
const dx = targetX - startX;
|
|
const dy = targetY - startY;
|
|
const distance = Math.sqrt(dx * dx + dy * dy);
|
|
const time = Date.now() - stateStart;
|
|
if (distance > Math.max(window.innerWidth, window.innerHeight) / 2) {
|
|
speed *= 1.3;
|
|
}
|
|
const amount = Math.min(1, time / (distance / speed));
|
|
const { x, y } = parabolicLerp(startX, startY, targetX, targetY, amount, intensity);
|
|
birdX = x;
|
|
birdY = y;
|
|
const complete = Math.abs(birdX - targetX) < 1 && Math.abs(birdY - targetY) < 1;
|
|
if (complete) {
|
|
birdX = targetX;
|
|
birdY = targetY;
|
|
} else {
|
|
birb.setDirection(targetX > birdX ? Directions.RIGHT : Directions.LEFT);
|
|
}
|
|
return complete;
|
|
}
|
|
|
|
function getFocusedElementRandomX() {
|
|
return Math.random() * (focusedBounds.right - focusedBounds.left) + focusedBounds.left;
|
|
}
|
|
|
|
function isWithinHorizontalBounds() {
|
|
return birdX >= focusedBounds.left && birdX <= focusedBounds.right;
|
|
}
|
|
|
|
function getFocusedY() {
|
|
return getFullWindowHeight() - focusedBounds.top;
|
|
}
|
|
|
|
/**
|
|
* @returns The render-safe height of the inner browser window
|
|
*/
|
|
function getSafeWindowHeight() {
|
|
// Necessary because iOS 26 Safari is terrible and won't render
|
|
// fixed elements behind the address bar
|
|
return window.innerHeight;
|
|
}
|
|
|
|
/**
|
|
* @returns The true height of the inner browser window
|
|
*/
|
|
function getFullWindowHeight() {
|
|
return document.documentElement.clientHeight;
|
|
}
|
|
|
|
function focusOnGround() {
|
|
console.log("Focusing on ground");
|
|
focusedElement = null;
|
|
focusedBounds = { left: 0, right: window.innerWidth, top: getSafeWindowHeight() };
|
|
flyTo(Math.random() * window.innerWidth, 0);
|
|
}
|
|
|
|
function focusOnElement() {
|
|
if (frozen) {
|
|
return;
|
|
}
|
|
const elements = document.querySelectorAll("img, video");
|
|
const inWindow = Array.from(elements).filter((img) => {
|
|
const rect = img.getBoundingClientRect();
|
|
return rect.left >= 0 && rect.top >= MIN_FOCUS_ELEMENT_TOP && rect.right <= window.innerWidth && rect.top <= window.innerHeight;
|
|
});
|
|
/** @type {HTMLElement[]} */
|
|
// @ts-expect-error
|
|
const largeElements = Array.from(inWindow).filter((img) => img instanceof HTMLElement && img !== focusedElement && img.offsetWidth >= MIN_FOCUS_ELEMENT_WIDTH);
|
|
if (largeElements.length === 0) {
|
|
return;
|
|
}
|
|
const randomElement = largeElements[Math.floor(Math.random() * largeElements.length)];
|
|
focusedElement = randomElement;
|
|
log("Focusing on element: ", focusedElement);
|
|
updateFocusedElementBounds();
|
|
flyTo(getFocusedElementRandomX(), getFocusedY());
|
|
}
|
|
|
|
function updateFocusedElementBounds() {
|
|
if (focusedElement === null) {
|
|
// Update ground location to bottom of window
|
|
focusedBounds = { left: 0, right: window.innerWidth, top: getFullWindowHeight() };
|
|
return;
|
|
}
|
|
const { left, right, top } = focusedElement.getBoundingClientRect();
|
|
focusedBounds = { left, right, top };
|
|
}
|
|
|
|
function getCanvasWidth() {
|
|
return birb.getElementWidth();
|
|
}
|
|
|
|
function hop() {
|
|
if (frozen) {
|
|
return;
|
|
}
|
|
if (currentState === States.IDLE) {
|
|
setState(States.HOP);
|
|
birb.setAnimation(Animations.FLYING);
|
|
if ((Math.random() < 0.5 && birdX - HOP_DISTANCE > focusedBounds.left) || birdX + HOP_DISTANCE > focusedBounds.right) {
|
|
targetX = birdX - HOP_DISTANCE;
|
|
} else {
|
|
targetX = birdX + HOP_DISTANCE;
|
|
}
|
|
targetY = getFocusedY();
|
|
}
|
|
}
|
|
|
|
function pet() {
|
|
if (currentState === States.IDLE && birb.getCurrentAnimation() !== Animations.HEART) {
|
|
birb.setAnimation(Animations.HEART);
|
|
lastPetTimestamp = Date.now();
|
|
}
|
|
}
|
|
|
|
function hideBirb() {
|
|
birb.setVisible(false);
|
|
visible = false;
|
|
}
|
|
|
|
/**
|
|
* @param {number} x
|
|
* @param {number} y
|
|
*/
|
|
function flyTo(x, y) {
|
|
targetX = x;
|
|
targetY = y;
|
|
setState(States.FLYING);
|
|
birb.setAnimation(Animations.FLYING);
|
|
}
|
|
|
|
/**
|
|
* @returns {boolean} Whether the bird should be absolutely positioned
|
|
*/
|
|
function isAbsolute() {
|
|
return focusedElement !== null && (currentState === States.IDLE || currentState === States.HOP);
|
|
}
|
|
|
|
/**
|
|
* Set the current state and reset the state timer
|
|
* @param {string} state
|
|
*/
|
|
function setState(state) {
|
|
stateStart = Date.now();
|
|
startX = birdX;
|
|
startY = birdY;
|
|
currentState = state;
|
|
if (state === States.IDLE) {
|
|
birb.setAnimation(Animations.BOB);
|
|
}
|
|
birb.setAbsolutePositioned(isAbsolute());
|
|
setY(birdY);
|
|
}
|
|
|
|
/**
|
|
* @param {number} x
|
|
*/
|
|
function setX(x) {
|
|
birb.setX(x);
|
|
}
|
|
|
|
/**
|
|
* @param {number} y
|
|
*/
|
|
function setY(y) {
|
|
birb.setY(y);
|
|
}
|
|
|
|
// Helper functions
|
|
|
|
/**
|
|
* @param {number} startX
|
|
* @param {number} startY
|
|
* @param {number} endX
|
|
* @param {number} endY
|
|
* @param {number} amount
|
|
* @param {number} [intensity]
|
|
* @returns {{x: number, y: number}}
|
|
*/
|
|
function parabolicLerp(startX, startY, endX, endY, amount, intensity = 1.2) {
|
|
const dx = endX - startX;
|
|
const dy = endY - startY;
|
|
const distance = Math.sqrt(dx * dx + dy * dy);
|
|
const angle = Math.atan2(dy, dx);
|
|
const midX = startX + Math.cos(angle) * distance / 2;
|
|
const midY = startY + Math.sin(angle) * distance / 2 + distance / 4 * intensity;
|
|
const t = amount;
|
|
const x = (1 - t) ** 2 * startX + 2 * (1 - t) * t * midX + t ** 2 * endX;
|
|
const y = (1 - t) ** 2 * startY + 2 * (1 - t) * t * midY + t ** 2 * endY;
|
|
return { x, y };
|
|
}
|
|
|
|
// Run the birb
|
|
init();
|
|
draw();
|
|
}).catch((e) => {
|
|
error("Error while loading sprite sheets: ", e);
|
|
}); |