tin-engine/examples/build.js

Simple game engine to make small canvas based games using es6

const fs = require('fs');
const path = require('path');

let examples = [];

function findExamples(dir) {
	const files = fs.readdirSync(dir);
	files.forEach(f => {
		const name = path.join(dir, f);
		const stats = fs.statSync(name);

		if(stats.isDirectory())
			findExamples(name);
		else if(f.endsWith('.example.js'))
			examples.push({
				id: f.substring(0, f.length-11),
				path: path.relative(path.join(__dirname, '..'), name).replace(path.sep, '/')
			});
	});
}

module.exports = function() {
	const dir = path.join(__dirname, '..', 'examples');
	const template_index = fs.readFileSync(path.join(dir, 'index.html')).toString();

	examples = [];
	findExamples(path.join(__dirname, '..'));

	let script = "import renderExamples from './examples/examples.js';\n";
	script += examples.map(e => `import ${e.id} from './${e.path}';\n`).join('');
	script += "\nwindow.onload = () => renderExamples({\n" + examples.map(e => `  ${e.id}: {examples: ${e.id}, path: '${e.path}'},\n`).join('') + "});";

	return template_index.replace('{{ script }}', `<script type="module">${script}</script>`);
};