83 lines
2.4 KiB
JavaScript
83 lines
2.4 KiB
JavaScript
import fs from "fs";
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export const BACKUP_SUFFIX = "_备份";
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// 检查当前目录是否有 gltf 文件
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export function hasGltfFile() {
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return listGltfFiles().length > 0;
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}
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// 获取当前目录下可用的 gltf 文件列表
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export function listGltfFiles() {
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const cwd = process.cwd();
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return fs.readdirSync(cwd).filter(f => f.toLowerCase().endsWith(".gltf") && !f.includes(BACKUP_SUFFIX));
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}
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// 获取 glTF / GLB 模型文件
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export function listModelFiles() {
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const cwd = process.cwd();
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return fs
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.readdirSync(cwd)
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.filter(file => /\.(gltf|glb)$/i.test(file) && !file.includes(BACKUP_SUFFIX));
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}
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// 获取所有支持的模型文件（包括需要转换的格式）
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export function listAllModelFiles() {
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const cwd = process.cwd();
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return fs
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.readdirSync(cwd)
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.filter(file => /\.(gltf|glb|obj|fbx)$/i.test(file) && !file.includes(BACKUP_SUFFIX));
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}
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// 判断是否需要先转换
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export function needsConversion(file) {
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return /\.(obj|fbx)$/i.test(file);
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}
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// 检查是否满足执行条件（有 ktx2、gltf、bin 文件）
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export function checkRequiredFiles() {
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const cwd = process.cwd();
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const files = fs.readdirSync(cwd);
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const hasKtx2 = files.some(f => f.toLowerCase().endsWith(".ktx2"));
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const hasGltf = files.some(f => f.toLowerCase().endsWith(".gltf"));
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const hasBin = files.some(f => f.toLowerCase().endsWith(".bin"));
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const missing = [];
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if (!hasKtx2) missing.push("ktx2");
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if (!hasGltf) missing.push("gltf");
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if (!hasBin) missing.push("bin");
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return { ok: missing.length === 0, missing };
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}
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// 修改 gltf 文件，根据选项添加扩展
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export function modifyGltfContent(gltfPath, options = ["textureBasisu"]) {
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const content = fs.readFileSync(gltfPath, "utf-8");
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const gltf = JSON.parse(content);
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if (options.includes("textureBasisu")) {
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if (!gltf.extensionsUsed) gltf.extensionsUsed = [];
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if (!gltf.extensionsUsed.includes("KHR_texture_basisu")) {
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gltf.extensionsUsed.push("KHR_texture_basisu");
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}
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if (gltf.textures) {
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gltf.textures = gltf.textures.map(tex => ({
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extensions: { KHR_texture_basisu: { source: tex.source } }
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}));
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}
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if (gltf.images) {
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gltf.images = gltf.images.map(img => {
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const uri = img.uri || "";
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const newUri = uri.replace(/\.(png|jpg|jpeg|webp|tga)$/i, ".ktx2");
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return { uri: newUri, mimeType: "image/ktx2" };
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});
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}
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}
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// placeholder1, placeholder2, placeholder3 预留扩展点
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return gltf;
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}
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