128 lines
3.9 KiB
JavaScript
128 lines
3.9 KiB
JavaScript
const { join, resolve } = require("path");
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const { readFileSync, readdirSync, writeFileSync } = require("fs");
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const suffixToScale = {
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lq: "0.25",
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mq: "0.5",
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hq: "0.75"
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};
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function convert(srcDir) {
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const full = resolve(srcDir);
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const srcFiles = readdirSync(full)
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.filter(n => n.endsWith(".atlas"))
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.map(n => join(full, n));
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for (const atlas of srcFiles) {
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console.log(`Processing: ${atlas}`);
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// Read all text, split it into line array
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// and filter all empty lines
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const lines = readFileSync(atlas, "utf-8")
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.split("\n")
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.filter(n => n.trim());
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// Get source image name
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const image = lines.shift();
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const srcMeta = {};
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// Read all metadata (supports only one page)
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while (true) {
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const kv = lines.shift().split(":");
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if (kv.length != 2) {
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lines.unshift(kv[0]);
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break;
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}
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srcMeta[kv[0]] = kv[1].trim();
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}
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const frames = {};
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let current = null;
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lines.push("Dummy line to make it convert last frame");
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for (const line of lines) {
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if (!line.startsWith(" ")) {
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// New frame, convert previous if it exists
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if (current != null) {
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let { name, rotate, xy, size, orig, offset, index } = current;
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// Convert to arrays because Node.js doesn't
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// support latest JS features
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xy = xy.split(",").map(v => Number(v));
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size = size.split(",").map(v => Number(v));
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orig = orig.split(",").map(v => Number(v));
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offset = offset.split(",").map(v => Number(v));
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// GDX TexturePacker removes index suffixes
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const indexSuff = index != -1 ? `_${index}` : "";
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const isTrimmed = size != orig;
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frames[`${name}${indexSuff}.png`] = {
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// Bounds on atlas
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frame: {
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x: xy[0],
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y: xy[1],
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w: size[0],
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h: size[1]
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},
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// Whether image was rotated
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rotated: rotate == "true",
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trimmed: isTrimmed,
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// How is the image trimmed
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spriteSourceSize: {
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x: offset[0],
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y: (orig[1] - size[1]) - offset[1],
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w: size[0],
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h: size[1]
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},
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sourceSize: {
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w: orig[0],
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h: orig[1]
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}
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}
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}
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// Simple object that will hold other metadata
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current = {
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name: line
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};
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} else {
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// Read and set current image metadata
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const kv = line.split(":").map(v => v.trim());
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current[kv[0]] = isNaN(Number(kv[1])) ? kv[1] : Number(kv[1]);
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}
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}
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const atlasSize = srcMeta.size.split(",").map(v => Number(v));
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const atlasScale = suffixToScale[atlas.match(/_(\w+)\.atlas$/)[1]];
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const result = JSON.stringify({
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frames,
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meta: {
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image,
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format: srcMeta.format,
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size: {
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w: atlasSize[0],
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h: atlasSize[1]
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},
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scale: atlasScale.toString()
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}
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});
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writeFileSync(atlas.replace(".atlas", ".json"), result, {
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encoding: "utf-8"
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});
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}
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}
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if (require.main == module) {
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convert(process.argv[2]);
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}
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module.exports = { convert };
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