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rollup.config.js
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rollup.config.js
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import { terser } from "rollup-plugin-terser";
import resolve from '@rollup/plugin-node-resolve';
import commonjs from '@rollup/plugin-commonjs';
import postcss from 'rollup-plugin-postcss';
import path from 'path';
import htmlTemplate from 'rollup-plugin-generate-html-template';
import clear from 'rollup-plugin-clear';
import kontra from 'rollup-plugin-kontra';
import serve from 'rollup-plugin-serve';
import livereload from 'rollup-plugin-livereload';
import copy from 'rollup-plugin-copy';
// dev build if watching, prod build if not
const production = !process.env.ROLLUP_WATCH;
const assets = [
'assets/side_scroll_map.json',
'assets/nature-paltformer-tileset-16x16.png',
'assets/player.png',
// 'assets/charset.png',
'assets/sock-sheet.png',
'assets/rotating_spike.png',
// 'assets/rip.png',
'assets/washing_machine.png',
];
let targets = assets.map(x => { return {src: x, dest: 'dist/assets'} });
export default {
input: 'src/index.js',
output: [
{
file: production ? "dist/main.min.js" : "dist/main.js",
format: 'iife',
sourcemap: production ? false : 'inline'
},
],
plugins: [
// To import libs from node_modules
resolve(),
commonjs(),
// contra rollup plugin
kontra({
gameObject: {
// enable only velocity and rotation functionality
velocity: true,
ttl: true,
camera: true,
scale: true,
anchor: true,
group: true,
opacity: true,
},
sprite: { animation: true }
}),
// To include css from scripts, combine and minimize
postcss({
minimize: production,
extract: path.resolve (production ? 'dist/main.min.css' : 'dist/main.css')
}),
production && terser({
ecma: '2020',
module: true,
toplevel: true,
compress: {
keep_fargs: false,
passes: 10,
pure_funcs: ['assert', 'debug'],
pure_getters: true,
unsafe: true,
unsafe_arrows: true,
unsafe_comps: true,
unsafe_math: true,
unsafe_methods: true,
},
mangle: true
}),
// to use html template and include script and styles bundles
htmlTemplate({
template: 'src/index.html',
target: production ? 'dist/index.dist.html' : 'dist/index.html',
}),
clear({
// required, point out which directories should be clear.
targets: ['dist'],
// optional, whether clear the directories when rollup recompile on --watch mode.
watch: true, // default: false
}),
copy({
targets: targets,
}),
!production && serve({
open: false,
verbose: true,
contentBase: ['dist'],
port: 8080
}),
!production && livereload()
]
};