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Implement rarity calculations

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This commit is contained in:
Idrees Hassan
2026-03-28 11:26:39 -07:00
parent abe4439d5e
commit 7d16459a76
8 changed files with 54 additions and 42 deletions
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12
src/animation/sprites.js
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@@ -98,13 +98,12 @@ export const DEFAULT_COLOR_OVERRIDES = {
[PALETTE.WING_SPOTS]: PALETTE.WING,
};
/**
* @type {Record<string, string>}
*/
export const RARITY = {
export const RARITY = Object.freeze(/** @type {const} */ ({
FAMILIAR: "familiar",
UNCOMMON: "uncommon"
}
}));
/** @typedef {typeof RARITY[keyof typeof RARITY]} Rarity */
export class BirdType {
/**
@@ -112,7 +111,7 @@ export class BirdType {
* @param {string} description
* @param {Record<string, string>} colors
* @param {string[]} [tags]
* @param {string} [rarity]
* @param {Rarity} [rarity]
*/
constructor(name, description, colors, tags = [], rarity = RARITY.FAMILIAR) {
this.name = name;
@@ -145,6 +144,7 @@ export class BirdType {
/** @type {Record<string, string>} */
this.colors = { ...defaultColors, ...colors, [PALETTE.THEME_HIGHLIGHT]: colors[PALETTE.THEME_HIGHLIGHT] ?? colors.hood ?? colors.face };
this.tags = tags;
/** @type {Rarity} */
this.rarity = rarity;
}
}

4
src/application.js
View File

@@ -110,6 +110,7 @@ const HOP_DELAY = 500;
const HOP_CHANCE = 1 / (60 * 2.5); // Every 2.5 seconds
const FOCUS_SWITCH_CHANCE = 1 / (60 * 20); // Every 20 seconds
const FEATHER_CHANCE = 1 / (60 * 60 * 60 * 2); // Every 2 hours
const UNCOMMON_FEATHER_CHANCE = 0.1; // 10% of feathers are uncommon
const HAT_CHANCE = 1 / (60 * 60 * 25); // Every 25 minutes
// Feathers
@@ -564,7 +565,8 @@ function startApplication(birbPixels, featherPixels, hatsPixels) {
if (document.querySelector("#" + FEATHER_ID)) {
return;
}
const speciesToUnlock = Object.keys(SPECIES).filter((species) => !unlockedSpecies.includes(species));
const rarity = Math.random() < UNCOMMON_FEATHER_CHANCE ? RARITY.UNCOMMON : RARITY.FAMILIAR;
const speciesToUnlock = Object.keys(SPECIES).filter((species) => !unlockedSpecies.includes(species) && SPECIES[species].rarity === rarity);
if (speciesToUnlock.length === 0) {
// No more species to unlock
return;