Move sprite related files to separate folder

src/Frame.js

@@ -1,76 +0,0 @@
-import { Directions } from './shared.js';
-import { Sprite, BirdType } from './sprites.js';
-import Layer from './layer.js';
-
-class Frame {
-
-	/** @type {{ [tag: string]: string[][] }} */
-	#pixelsByTag = {};
-
-	/**
-	 * @param {Layer[]} layers
-	 */
-	constructor(layers) {
-		/** @type {Set<string>} */
-		let tags = new Set();
-		for (let layer of layers) {
-			tags.add(layer.tag);
-		}
-		tags.add("default");
-		for (let tag of tags) {
-			let maxHeight = layers.reduce((max, layer) => Math.max(max, layer.pixels.length), 0);
-			if (layers[0].tag !== "default") {
-				throw new Error("First layer must have the 'default' tag");
-			}
-			this.pixels = layers[0].pixels.map(row => row.slice());
-			// Pad from top with transparent pixels
-			while (this.pixels.length < maxHeight) {
-				this.pixels.unshift(new Array(this.pixels[0].length).fill(Sprite.TRANSPARENT));
-			}
-			// Combine layers
-			for (let i = 1; i < layers.length; i++) {
-				if (layers[i].tag === "default" || layers[i].tag === tag) {
-					let layerPixels = layers[i].pixels;
-					let topMargin = maxHeight - layerPixels.length;
-					for (let y = 0; y < layerPixels.length; y++) {
-						for (let x = 0; x < layerPixels[y].length; x++) {
-							this.pixels[y + topMargin][x] = layerPixels[y][x] !== Sprite.TRANSPARENT ? layerPixels[y][x] : this.pixels[y + topMargin][x];
-						}
-					}
-				}
-			}
-			this.#pixelsByTag[tag] = this.pixels.map(row => row.slice());
-		}
-	}
-
-	/**
-	 * @param {string} [tag]
-	 * @returns {string[][]}
-	 */
-	getPixels(tag = "default") {
-		return this.#pixelsByTag[tag] ?? this.#pixelsByTag["default"];
-	}
-
-	/**
-	 * @param {CanvasRenderingContext2D} ctx
-	 * @param {BirdType} [species]
-	* @param {number} direction
-	 * @param {number} canvasPixelSize
-	 */
-	draw(ctx, direction, canvasPixelSize, species) {
-		// Clear the canvas before drawing the new frame
-		ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
-		
-		const pixels = this.getPixels(species?.tags[0]);
-		for (let y = 0; y < pixels.length; y++) {
-			const row = pixels[y];
-			for (let x = 0; x < pixels[y].length; x++) {
-				const cell = direction === Directions.LEFT ? row[x] : row[pixels[y].length - x - 1];
-				ctx.fillStyle = species?.colors[cell] ?? cell;
-				ctx.fillRect(x * canvasPixelSize, y * canvasPixelSize, canvasPixelSize, canvasPixelSize);
-			};
-		};
-	}
-}
-
-export default Frame;

src/Layer.js

@@ -1,12 +0,0 @@
-class Layer {
-	/**
-	 * @param {string[][]} pixels
-	 * @param {string} [tag]
-	 */
-	constructor(pixels, tag = "default") {
-		this.pixels = pixels;
-		this.tag = tag;
-	}
-}
-
-export default Layer;

src/animation/frame.js

@@ -1,4 +1,4 @@
-import { Directions } from './shared.js';
+import { Directions } from '../shared.js';
 import { Sprite, BirdType } from './sprites.js';
 import Layer from './layer.js';
 

src/application.js

@@ -1,6 +1,6 @@
-import Frame from './frame.js';
-import Layer from './layer.js';
-import Anim from './anim.js';
+import Frame from './animation/frame.js';
+import Layer from './animation/layer.js';
+import Anim from './animation/anim.js';
 import { Birb, Animations } from './birb.js';
 import { Birdsong } from './sound.js';
 import { Context, ObsidianContext } from './context.js';
@@ -26,7 +26,7 @@ import {
 	Sprite,
 	SPRITE_SHEET_COLOR_MAP,
 	SPECIES
-} from './sprites.js';
+} from './animation/sprites.js';
 import {
 	StickyNote,
 	createNewStickyNote,

src/birb.js

@@ -1,8 +1,8 @@
 import { Directions, getLayer, getWindowHeight, getFixedWindowHeight } from './shared.js';
-import Layer from './layer.js';
-import Frame from './frame.js';
-import Anim from './anim.js';
-import { BirdType } from './sprites.js';
+import Layer from './animation/layer.js';
+import Frame from './animation/frame.js';
+import Anim from './animation/anim.js';
+import { BirdType } from './animation/sprites.js';
 
 /**
  * @typedef {keyof typeof Animations} AnimationType