Repository: pex-gl/pex
Branch: master
Commit: 593c10eaaca2
Files: 12
Total size: 11.7 KB

Directory structure:
gitextract_p74wbejl/

├── .gitignore
├── .npmignore
├── LICENSE.md
├── README.md
├── index.js
├── lib/
│   ├── init/
│   │   ├── init.js
│   │   └── templates/
│   │       ├── assets/
│   │       │   ├── ShowNormals.frag
│   │       │   └── ShowNormals.vert
│   │       ├── index.html
│   │       └── main.js
│   └── pkg/
│       └── pex-packages-core.json
└── package.json

================================================
FILE CONTENTS
================================================

================================================
FILE: .gitignore
================================================
.DS_Store
*~
stuff
experiments
node_modules


================================================
FILE: .npmignore
================================================
/assets
stuff
experiments

================================================
FILE: LICENSE.md
================================================
The MIT License (MIT)

Copyright (c) 2014 Marcin Ignac

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

================================================
FILE: README.md
================================================
# Pex

PEX is a collection of JavaScript modules the combination of which becomes a powerful 3D graphics library for the desktop and the web. This repository is currently **DEPRECATED**. 

Please use [pex-context](https://github.com/pex-gl/pex-context) (stable) or [pex-renderer](https://github.com/pex-gl/pex-renderer) (beta).

![Pex](assets/pex.jpg)




================================================
FILE: index.js
================================================
#!/usr/bin/env node

var program = require('commander');
var pkg = require(__dirname + '/package.json');
var version = pkg.version;
var init = require('./lib/init/init.js');

var args = process.argv.slice(2);

program
  .usage('[command] [options]')
  .version(version)
  .option('-f, --force', 'force on non-empty directory')

program
  .command('init [projectName]')
  .description('generate example project')
  .action(function(name) {
    init.generate(name);
  });

program.on('--help', function(){
  console.log('  Examples:');
  console.log('');
  console.log('    $ pex init projectName');
  console.log('');
});

program.parse(process.argv);

if (process.argv.length == 2) {
  program.help();
}

var destPath = program.args.shift() || '.';


================================================
FILE: lib/init/init.js
================================================
var aasciArt = (
        '            _               _        _      _       \n'
        +'           /\\ \\            /\\ \\    /_/\\    /\\ \\    \n'
        +'          /  \\ \\          /  \\ \\   \\ \\ \\   \\ \\_\\   \n'
        +'         / /\\ \\ \\        / /\\ \\ \\   \\ \\ \\__/ / /   \n'
        +'        / / /\\ \\_\\      / / /\\ \\_\\   \\ \\__ \\/_/    \n'
        +'       / / /_/ / /     / /_/_ \\/_/    \\/_/\\__/\\    \n'
        +'      / / /__\\/ /     / /____/\\        _/\\/__\\ \\   \n'
        +'     / / /_____/     / /\\____\\/       / _/_/\\ \\ \\  \n'
        +'    / / /           / / /______      / / /   \\ \\ \\  \n'
        +'   / / /           / / /_______\\    / / /    /_/ /  \n'
        +'   \\/_/            \\/__________/    \\/_/     \\_\\/  \n'
);

var mkdirp = require('mkdirp');
var os = require('os');
var fs = require('fs');
var path = require('path');
var inquirer = require('inquirer');
var async = require('async');
var exec = require('child_process').exec;

var appName = 'pexample';
var eol = os.EOL;

function loadTemplate(name) {
  return fs.readFileSync(path.join(__dirname, '.', 'templates', name), 'utf-8');
}

var mainfile    = loadTemplate('main.js');
var indexHTML   = loadTemplate('index.html');
var showNormalsVert     = loadTemplate('assets/ShowNormals.vert');
var showNormalsFrag     = loadTemplate('assets/ShowNormals.frag');


module.exports.generate = function(destPath, options) {
    options = options || {};
    options.force = options.force || false;

    appName = path.basename(path.resolve(destPath));
    emptyDirectory(destPath, function(empty){
        if (empty || options.force) {
            createApplicationAt(destPath, options);
        } else {
            inquirer.prompt([
                {
                    type: 'confirm',
                    name: 'deleteDestPath',
                    message: 'destination path is not empty. continue?',
                    default: false
            }],

            function(response){
                if (response.deleteDestPath) {
                    createApplicationAt(destPath, options);
                } else {
                    abort('aborting');
                }
            });
        }
    });
};

function isOnline(callback) {
    require('dns').resolve('www.google.com', function(err) {
        if (err) { callback(err, false); }
        else callback(null, true);
    });
}

function getPackageVersion(pkg, callback) {
    var version = execSync('npm show ' + pkg.name + ' version');
    version = version.trim();
    return version;
}

var pexPackages = require('../pkg/pex-packages-core');

function getPackageVersion(packageInfo, callback) {
    exec('npm show ' + packageInfo.name + ' version', function(err, stdout, stderr) {
        var version = stdout.trim();
        console.log('   \x1b[36mmodule\x1b[0m : ' +packageInfo.name + ' @ ' + version);
        callback(null, version);
    })
}

function generatePackageInfo(callback) {
    isOnline(function(err, online) {
        var pkg = {
            name: appName,
            version: '0.0.1',
            private: true,
            dependencies: {
                'beefy':            '^2.1.5',
                'browserify':       '^12.0.1',
                'glslify-promise':  '^1.0.1',
                'is-browser':       '^2.0.1',
                'primitive-cube':   '^1.0.2'
            }
        }
        function dummy(packageName, callback) {
            callback(null, '*');
        }
        async.map(pexPackages, online ? getPackageVersion : dummy, function(err, results) {
            pexPackages.forEach(function(packageInfo, packageIndex) {
                pkg.dependencies[packageInfo.name] = '^' + results[packageIndex];
            })
            callback(null, pkg);
        })
    })
}

function createApplicationAt(path, options) {
    var buildCommand = '';
    console.log();
    process.on('exit', function(){
        console.log();
        console.log(aasciArt);
        console.log();
        console.log(' don\'t forget to install dependencies:');
        console.log();
        console.log('     $ cd %s', path);
        console.log('     $ npm install');
        console.log('     $ ' + buildCommand);
        console.log();
    });

    mkdir(path, function() {
        generatePackageInfo(function(err, pkg) {
            pkg.scripts = {};
            pkg.scripts.start = 'beefy main.js:main.web.js --open -- -i plask -g glslify-promise/transform';
            pkg.scripts.build = 'browserify main.js -i plask -g glslify-promise/transform -o main.web.js';
            buildCommand = 'npm start';
            write(path + '/package.json', JSON.stringify(pkg, null, 2));
            write(path + '/main.js', mainfile);
            write(path + '/index.html', indexHTML);
            mkdir(path + '/assets', function() {
                write(path + '/assets/ShowNormals.vert', showNormalsVert);
                write(path + '/assets/ShowNormals.frag', showNormalsFrag);
            });
        })
    });
}

function copyTemplate(from, to) {
  from = path.join(__dirname, '..', 'templates', from);
  write(to, fs.readFileSync(from, 'utf-8'));
}

function emptyDirectory(path, fn) {
    fs.readdir(path, function(err, files){
        if (err && 'ENOENT' != err.code) throw err;
        fn(!files || !files.length);
    });
}


function write(path, str, mode) {
    fs.writeFile(path, str, { mode: mode || 0666 });
    console.log('   \x1b[36mcreate\x1b[0m : ' + path);
}


function mkdir(path, fn) {
    mkdirp(path, 0755, function(err){
        if (err) throw err;
        console.log('   \033[36mcreate\033[0m : ' + path);
        fn && fn();
    });
}

function abort(str) {
    console.error(str);
    process.exit(1);
}


================================================
FILE: lib/init/templates/assets/ShowNormals.frag
================================================
#ifdef GL_ES
precision highp float;
#endif

varying vec3 ecNormal;

void main() {
    gl_FragColor = vec4(normalize(ecNormal) * 0.5 + 0.5, 1.0);
}


================================================
FILE: lib/init/templates/assets/ShowNormals.vert
================================================
attribute vec4 aPosition;
attribute vec3 aNormal;

uniform mat4 uProjectionMatrix;
uniform mat4 uViewMatrix;
uniform mat4 uModelMatrix;
uniform mat3 uNormalMatrix;

varying vec3 ecNormal;

void main() {
    gl_Position = uProjectionMatrix * uViewMatrix * uModelMatrix * aPosition;
    ecNormal = uNormalMatrix * aNormal;
}


================================================
FILE: lib/init/templates/index.html
================================================
<!DOCTYPE html>
<html lang="en">
    <head>
        <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
        <meta charset="UTF-8">
        <title>PEX</title>
        <script src="main.web.js"></script>
        <style type="text/css">
        body { padding: 0; margin: 0; overflow: hidden; }
        </style>
    </head>
    <body>
    </body>
</html>


================================================
FILE: lib/init/templates/main.js
================================================
var Window          = require('pex-sys/Window');
var PerspCamera     = require('pex-cam/PerspCamera');
var Arcball         = require('pex-cam/Arcball');
var createCube      = require('primitive-cube');
var glslify         = require('glslify-promise');
var isBrowser       = require('is-browser');

Window.create({
    settings: {
        width:  1280,
        height: 720,
        fullScreen: isBrowser ? true : true
    },
    resources: {
        showNormalsVert: { glsl: glslify(__dirname + '/assets/ShowNormals.vert') },
        showNormalsFrag: { glsl: glslify(__dirname + '/assets/ShowNormals.frag') },
    },
    init: function() {
        var ctx = this.getContext();
        var res = this.getResources();

        this.camera  = new PerspCamera(45,this.getAspectRatio(),0.001,20.0);
        this.camera.lookAt([0, 1, 3], [0, 0, 0]);
        ctx.setProjectionMatrix(this.camera.getProjectionMatrix());

        this.arcball = new Arcball(this.camera, this.getWidth(), this.getHeight());
        this.arcball.setDistance(3.0);
        this.addEventListener(this.arcball);

        this.showNormalsProgram = ctx.createProgram(res.showNormalsVert, res.showNormalsFrag);
        ctx.bindProgram(this.showNormalsProgram);

        var cube = createCube();
        var cubeAttributes = [
            { data: cube.positions, location: ctx.ATTRIB_POSITION },
            { data: cube.normals, location: ctx.ATTRIB_NORMAL }
        ];
        var cubeIndices = { data: cube.cells };
        this.cubeMesh = ctx.createMesh(cubeAttributes, cubeIndices, ctx.TRIANGLES);
    },
    draw: function() {
        var ctx = this.getContext();

        this.arcball.apply();
        ctx.setViewMatrix(this.camera.getViewMatrix());

        ctx.setClearColor(1, 0.2, 0.2, 1);
        ctx.clear(ctx.COLOR_BIT | ctx.DEPTH_BIT);
        ctx.setDepthTest(true);

        ctx.bindProgram(this.showNormalsProgram);
        ctx.bindMesh(this.cubeMesh);
        ctx.drawMesh();
    }
})


================================================
FILE: lib/pkg/pex-packages-core.json
================================================
[
  { "name" : "pex-cam" },
  { "name" : "pex-color" },
  { "name" : "pex-context" },
  { "name" : "pex-draw" },
  { "name" : "pex-geom" },
  { "name" : "pex-io" },
  { "name" : "pex-math" },
  { "name" : "pex-sys" }
]


================================================
FILE: package.json
================================================
{
  "name": "pex",
  "version": "1.0.2",
  "description": "Pex is a javascript 3d library / engine allowing for seamless development between Plask and WebGL in the browser.",
  "keywords": [
    "pex",
    "plask",
    "cli"
  ],
  "main": "index.js",
  "preferGlobal": "true",
  "bin": {
    "pex": "./index.js"
  },
  "author": {
    "name": "Marcin Ignac",
    "email": "marcin.ignac@gmail.com",
    "url": "http://marcinignac.com"
  },
  "contributors": [
    {
      "name": "Nick Nikolov"
    },
    {
      "name": "Marcin Ignac"
    }
  ],
  "dependencies": {
    "async": "^0.9.0",
    "commander": "^2.3.0",
    "inquirer": "^0.5.1",
    "mkdirp": "^0.5.0"
  },
  "repository": {
    "type": "git",
    "url": "https://github.com/pex-gl/pex.git"
  },
  "homepage": "https://github.com/pex-gl/pex",
  "bugs": "https://github.com/pex-gl/pex/issues",
  "license": "MIT"
}