1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/.hgignore	Wed Feb 17 23:55:43 2016 +0300
     1.3 @@ -0,0 +1,10 @@
     1.4 +syntax: glob
     1.5 +
     1.6 +node_modules
     1.7 +bower_components
     1.8 +
     1.9 +src/*.js
    1.10 +test_runner.js
    1.11 +config.js
    1.12 +the.js
    1.13 +*~

     2.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     2.2 +++ b/Gruntfile.js	Wed Feb 17 23:55:43 2016 +0300
     2.3 @@ -0,0 +1,116 @@
     2.4 +'use strict';
     2.5 +
     2.6 +module.exports = function (grunt) {
     2.7 +    var path = require('path'),
     2.8 +        helpers = require('amber-dev').helpers;
     2.9 +
    2.10 +    // These plugins provide necessary tasks.
    2.11 +    grunt.loadNpmTasks('grunt-contrib-clean');
    2.12 +    grunt.loadNpmTasks('grunt-contrib-requirejs');
    2.13 +    grunt.loadNpmTasks('grunt-execute');
    2.14 +    grunt.loadNpmTasks('amber-dev');
    2.15 +
    2.16 +    // Default task.
    2.17 +    grunt.registerTask('default', ['amdconfig:app', 'amberc:all']);
    2.18 +    grunt.registerTask('test', ['amdconfig:app', 'requirejs:test_runner', 'execute:test_runner', 'clean:test_runner']);
    2.19 +    grunt.registerTask('devel', ['amdconfig:app', 'requirejs:devel']);
    2.20 +    grunt.registerTask('deploy', ['amdconfig:app', 'requirejs:deploy']);
    2.21 +
    2.22 +    // Project configuration.
    2.23 +    grunt.initConfig({
    2.24 +        // Metadata.
    2.25 +        // pkg: grunt.file.readJSON(''),
    2.26 +        banner: '/*! <%= pkg.title || pkg.name %> - v<%= pkg.version %> - ' +
    2.27 +        '<%= grunt.template.today("yyyy-mm-dd") %>\n' +
    2.28 +        '<%= pkg.homepage ? "* " + pkg.homepage + "\\n" : "" %>' +
    2.29 +        '* Copyright (c) <%= grunt.template.today("yyyy") %> <%= pkg.author.name %>;' +
    2.30 +        ' Licensed <%= _.pluck(pkg.licenses, "type").join(", ") %> */\n',
    2.31 +        // task configuration
    2.32 +        amberc: {
    2.33 +            options: {
    2.34 +                amber_dir: path.join(__dirname, "bower_components", "amber"),
    2.35 +                configFile: "config.js"
    2.36 +            },
    2.37 +            all: {
    2.38 +                src: [
    2.39 +                    'src/Serpentron.st', // list all sources in dependency order
    2.40 +                    'src/Serpentron-Tests.st' // list all tests in dependency order
    2.41 +                ],
    2.42 +                amd_namespace: 'amber-serpentron',
    2.43 +                libraries: ['amber_core/SUnit', 'silk/Silk']
    2.44 +            }
    2.45 +        },
    2.46 +
    2.47 +        amdconfig: {app: {dest: 'config.js'}},
    2.48 +
    2.49 +        requirejs: {
    2.50 +            options: {
    2.51 +                useStrict: true
    2.52 +            },
    2.53 +            deploy: {
    2.54 +                options: {
    2.55 +                    mainConfigFile: "config.js",
    2.56 +                    rawText: {
    2.57 +                        "amber/compatibility": "/*stub*/",
    2.58 +                        "amber/Platform": "/*stub*/",
    2.59 +                        "app": 'define(["deploy"],function(x){return x});'
    2.60 +                    },
    2.61 +                    pragmas: {
    2.62 +                        excludeIdeData: true,
    2.63 +                        excludeDebugContexts: true
    2.64 +                    },
    2.65 +                    include: ['config', 'config-browser', 'node_modules/requirejs/require', 'app'],
    2.66 +                    optimize: "uglify2",
    2.67 +                    out: "the.js"
    2.68 +                }
    2.69 +            },
    2.70 +            devel: {
    2.71 +                options: {
    2.72 +                    mainConfigFile: "config.js",
    2.73 +                    rawText: {
    2.74 +                        "amber/compatibility": "/*stub*/",
    2.75 +                        "amber/Platform": "/*stub*/",
    2.76 +                        "app": 'define(["devel"],function(x){return x});'
    2.77 +                    },
    2.78 +                    include: ['config', 'config-browser', 'node_modules/requirejs/require', 'app'],
    2.79 +                    exclude: ['devel'],
    2.80 +                    out: "the.js"
    2.81 +                }
    2.82 +            },
    2.83 +            test_runner: {
    2.84 +                options: {
    2.85 +                    mainConfigFile: "config.js",
    2.86 +                    rawText: {
    2.87 +                        "app": "(" + function () {
    2.88 +                            define(["testing", "amber_devkit/NodeTestRunner"], function (amber) {
    2.89 +                                amber.initialize().then(function () {
    2.90 +                                    amber.globals.NodeTestRunner._main();
    2.91 +                                });
    2.92 +                            });
    2.93 +                        } + "());"
    2.94 +                    },
    2.95 +                    paths: {"amber_devkit": helpers.libPath},
    2.96 +                    pragmas: {
    2.97 +                        excludeIdeData: true
    2.98 +                    },
    2.99 +                    include: ['config-node', 'app'],
   2.100 +                    insertRequire: ['app'],
   2.101 +                    optimize: "none",
   2.102 +                    wrap: helpers.nodeWrapperWithShebang,
   2.103 +                    out: "test_runner.js"
   2.104 +                }
   2.105 +            }
   2.106 +        },
   2.107 +
   2.108 +        execute: {
   2.109 +            test_runner: {
   2.110 +                src: ['test_runner.js']
   2.111 +            }
   2.112 +        },
   2.113 +
   2.114 +        clean: {
   2.115 +            test_runner: ['test_runner.js']
   2.116 +        }
   2.117 +    });
   2.118 +
   2.119 +};

     3.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     3.2 +++ b/LICENSE-GPL-3.0	Wed Feb 17 23:55:43 2016 +0300
     3.3 @@ -0,0 +1,674 @@
     3.4 +                    GNU GENERAL PUBLIC LICENSE
     3.5 +                       Version 3, 29 June 2007
     3.6 +
     3.7 + Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
     3.8 + Everyone is permitted to copy and distribute verbatim copies
     3.9 + of this license document, but changing it is not allowed.
    3.10 +
    3.11 +                            Preamble
    3.12 +
    3.13 +  The GNU General Public License is a free, copyleft license for
    3.14 +software and other kinds of works.
    3.15 +
    3.16 +  The licenses for most software and other practical works are designed
    3.17 +to take away your freedom to share and change the works.  By contrast,
    3.18 +the GNU General Public License is intended to guarantee your freedom to
    3.19 +share and change all versions of a program--to make sure it remains free
    3.20 +software for all its users.  We, the Free Software Foundation, use the
    3.21 +GNU General Public License for most of our software; it applies also to
    3.22 +any other work released this way by its authors.  You can apply it to
    3.23 +your programs, too.
    3.24 +
    3.25 +  When we speak of free software, we are referring to freedom, not
    3.26 +price.  Our General Public Licenses are designed to make sure that you
    3.27 +have the freedom to distribute copies of free software (and charge for
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    3.29 +want it, that you can change the software or use pieces of it in new
    3.30 +free programs, and that you know you can do these things.
    3.31 +
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    3.33 +these rights or asking you to surrender the rights.  Therefore, you have
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    3.35 +you modify it: responsibilities to respect the freedom of others.
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    3.37 +  For example, if you distribute copies of such a program, whether
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    3.41 +know their rights.
    3.42 +
    3.43 +  Developers that use the GNU GPL protect your rights with two steps:
    3.44 +(1) assert copyright on the software, and (2) offer you this License
    3.45 +giving you legal permission to copy, distribute and/or modify it.
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    3.69 +patents cannot be used to render the program non-free.
    3.70 +
    3.71 +  The precise terms and conditions for copying, distribution and
    3.72 +modification follow.
    3.73 +
    3.74 +                       TERMS AND CONDITIONS
    3.75 +
    3.76 +  0. Definitions.
    3.77 +
    3.78 +  "This License" refers to version 3 of the GNU General Public License.
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    3.80 +  "Copyright" also means copyright-like laws that apply to other kinds of
    3.81 +works, such as semiconductor masks.
    3.82 +
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   3.113 +menu, a prominent item in the list meets this criterion.
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   3.135 +produce the work, or an object code interpreter used to run it.
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   3.151 +can regenerate automatically from other parts of the Corresponding
   3.152 +Source.
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   3.154 +  The Corresponding Source for a work in source code form is that
   3.155 +same work.
   3.156 +
   3.157 +  2. Basic Permissions.
   3.158 +
   3.159 +  All rights granted under this License are granted for the term of
   3.160 +copyright on the Program, and are irrevocable provided the stated
   3.161 +conditions are met.  This License explicitly affirms your unlimited
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   3.163 +covered work is covered by this License only if the output, given its
   3.164 +content, constitutes a covered work.  This License acknowledges your
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   3.168 +convey, without conditions so long as your license otherwise remains
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   3.170 +of having them make modifications exclusively for you, or provide you
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   3.185 +measure under any applicable law fulfilling obligations under article
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   3.217 +    a) The work must carry prominent notices stating that you modified
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   3.219 +
   3.220 +    b) The work must carry prominent notices stating that it is
   3.221 +    released under this License and any conditions added under section
   3.222 +    7.  This requirement modifies the requirement in section 4 to
   3.223 +    "keep intact all notices".
   3.224 +
   3.225 +    c) You must license the entire work, as a whole, under this
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   3.248 +  6. Conveying Non-Source Forms.
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   3.250 +  You may convey a covered work in object code form under the terms
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   3.255 +    a) Convey the object code in, or embodied in, a physical product
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   3.353 +apply only to part of the Program, that part may be used separately
   3.354 +under those permissions, but the entire Program remains governed by
   3.355 +this License without regard to the additional permissions.
   3.356 +
   3.357 +  When you convey a copy of a covered work, you may at your option
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   3.366 +that material) supplement the terms of this License with terms:
   3.367 +
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   3.369 +    terms of sections 15 and 16 of this License; or
   3.370 +
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   3.390 +
   3.391 +  All other non-permissive additional terms are considered "further
   3.392 +restrictions" within the meaning of section 10.  If the Program as you
   3.393 +received it, or any part of it, contains a notice stating that it is
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   3.400 +
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   3.405 +
   3.406 +  Additional terms, permissive or non-permissive, may be stated in the
   3.407 +form of a separately written license, or stated as exceptions;
   3.408 +the above requirements apply either way.
   3.409 +
   3.410 +  8. Termination.
   3.411 +
   3.412 +  You may not propagate or modify a covered work except as expressly
   3.413 +provided under this License.  Any attempt otherwise to propagate or
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   3.415 +this License (including any patent licenses granted under the third
   3.416 +paragraph of section 11).
   3.417 +
   3.418 +  However, if you cease all violation of this License, then your
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   3.424 +
   3.425 +  Moreover, your license from a particular copyright holder is
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   3.427 +violation by some reasonable means, this is the first time you have
   3.428 +received notice of violation of this License (for any work) from that
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   3.430 +your receipt of the notice.
   3.431 +
   3.432 +  Termination of your rights under this section does not terminate the
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   3.436 +material under section 10.
   3.437 +
   3.438 +  9. Acceptance Not Required for Having Copies.
   3.439 +
   3.440 +  You are not required to accept this License in order to receive or
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   3.442 +occurring solely as a consequence of using peer-to-peer transmission
   3.443 +to receive a copy likewise does not require acceptance.  However,
   3.444 +nothing other than this License grants you permission to propagate or
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   3.446 +not accept this License.  Therefore, by modifying or propagating a
   3.447 +covered work, you indicate your acceptance of this License to do so.
   3.448 +
   3.449 +  10. Automatic Licensing of Downstream Recipients.
   3.450 +
   3.451 +  Each time you convey a covered work, the recipient automatically
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   3.453 +propagate that work, subject to this License.  You are not responsible
   3.454 +for enforcing compliance by third parties with this License.
   3.455 +
   3.456 +  An "entity transaction" is a transaction transferring control of an
   3.457 +organization, or substantially all assets of one, or subdividing an
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   3.466 +  You may not impose any further restrictions on the exercise of the
   3.467 +rights granted or affirmed under this License.  For example, you may
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   3.471 +any patent claim is infringed by making, using, selling, offering for
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   3.473 +
   3.474 +  11. Patents.
   3.475 +
   3.476 +  A "contributor" is a copyright holder who authorizes use under this
   3.477 +License of the Program or a work on which the Program is based.  The
   3.478 +work thus licensed is called the contributor's "contributor version".
   3.479 +
   3.480 +  A contributor's "essential patent claims" are all patent claims
   3.481 +owned or controlled by the contributor, whether already acquired or
   3.482 +hereafter acquired, that would be infringed by some manner, permitted
   3.483 +by this License, of making, using, or selling its contributor version,
   3.484 +but do not include claims that would be infringed only as a
   3.485 +consequence of further modification of the contributor version.  For
   3.486 +purposes of this definition, "control" includes the right to grant
   3.487 +patent sublicenses in a manner consistent with the requirements of
   3.488 +this License.
   3.489 +
   3.490 +  Each contributor grants you a non-exclusive, worldwide, royalty-free
   3.491 +patent license under the contributor's essential patent claims, to
   3.492 +make, use, sell, offer for sale, import and otherwise run, modify and
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   3.494 +
   3.495 +  In the following three paragraphs, a "patent license" is any express
   3.496 +agreement or commitment, however denominated, not to enforce a patent
   3.497 +(such as an express permission to practice a patent or covenant not to
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   3.500 +patent against the party.
   3.501 +
   3.502 +  If you convey a covered work, knowingly relying on a patent license,
   3.503 +and the Corresponding Source of the work is not available for anyone
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   3.505 +publicly available network server or other readily accessible means,
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   3.507 +available, or (2) arrange to deprive yourself of the benefit of the
   3.508 +patent license for this particular work, or (3) arrange, in a manner
   3.509 +consistent with the requirements of this License, to extend the patent
   3.510 +license to downstream recipients.  "Knowingly relying" means you have
   3.511 +actual knowledge that, but for the patent license, your conveying the
   3.512 +covered work in a country, or your recipient's use of the covered work
   3.513 +in a country, would infringe one or more identifiable patents in that
   3.514 +country that you have reason to believe are valid.
   3.515 +
   3.516 +  If, pursuant to or in connection with a single transaction or
   3.517 +arrangement, you convey, or propagate by procuring conveyance of, a
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   3.519 +receiving the covered work authorizing them to use, propagate, modify
   3.520 +or convey a specific copy of the covered work, then the patent license
   3.521 +you grant is automatically extended to all recipients of the covered
   3.522 +work and works based on it.
   3.523 +
   3.524 +  A patent license is "discriminatory" if it does not include within
   3.525 +the scope of its coverage, prohibits the exercise of, or is
   3.526 +conditioned on the non-exercise of one or more of the rights that are
   3.527 +specifically granted under this License.  You may not convey a covered
   3.528 +work if you are a party to an arrangement with a third party that is
   3.529 +in the business of distributing software, under which you make payment
   3.530 +to the third party based on the extent of your activity of conveying
   3.531 +the work, and under which the third party grants, to any of the
   3.532 +parties who would receive the covered work from you, a discriminatory
   3.533 +patent license (a) in connection with copies of the covered work
   3.534 +conveyed by you (or copies made from those copies), or (b) primarily
   3.535 +for and in connection with specific products or compilations that
   3.536 +contain the covered work, unless you entered into that arrangement,
   3.537 +or that patent license was granted, prior to 28 March 2007.
   3.538 +
   3.539 +  Nothing in this License shall be construed as excluding or limiting
   3.540 +any implied license or other defenses to infringement that may
   3.541 +otherwise be available to you under applicable patent law.
   3.542 +
   3.543 +  12. No Surrender of Others' Freedom.
   3.544 +
   3.545 +  If conditions are imposed on you (whether by court order, agreement or
   3.546 +otherwise) that contradict the conditions of this License, they do not
   3.547 +excuse you from the conditions of this License.  If you cannot convey a
   3.548 +covered work so as to satisfy simultaneously your obligations under this
   3.549 +License and any other pertinent obligations, then as a consequence you may
   3.550 +not convey it at all.  For example, if you agree to terms that obligate you
   3.551 +to collect a royalty for further conveying from those to whom you convey
   3.552 +the Program, the only way you could satisfy both those terms and this
   3.553 +License would be to refrain entirely from conveying the Program.
   3.554 +
   3.555 +  13. Use with the GNU Affero General Public License.
   3.556 +
   3.557 +  Notwithstanding any other provision of this License, you have
   3.558 +permission to link or combine any covered work with a work licensed
   3.559 +under version 3 of the GNU Affero General Public License into a single
   3.560 +combined work, and to convey the resulting work.  The terms of this
   3.561 +License will continue to apply to the part which is the covered work,
   3.562 +but the special requirements of the GNU Affero General Public License,
   3.563 +section 13, concerning interaction through a network will apply to the
   3.564 +combination as such.
   3.565 +
   3.566 +  14. Revised Versions of this License.
   3.567 +
   3.568 +  The Free Software Foundation may publish revised and/or new versions of
   3.569 +the GNU General Public License from time to time.  Such new versions will
   3.570 +be similar in spirit to the present version, but may differ in detail to
   3.571 +address new problems or concerns.
   3.572 +
   3.573 +  Each version is given a distinguishing version number.  If the
   3.574 +Program specifies that a certain numbered version of the GNU General
   3.575 +Public License "or any later version" applies to it, you have the
   3.576 +option of following the terms and conditions either of that numbered
   3.577 +version or of any later version published by the Free Software
   3.578 +Foundation.  If the Program does not specify a version number of the
   3.579 +GNU General Public License, you may choose any version ever published
   3.580 +by the Free Software Foundation.
   3.581 +
   3.582 +  If the Program specifies that a proxy can decide which future
   3.583 +versions of the GNU General Public License can be used, that proxy's
   3.584 +public statement of acceptance of a version permanently authorizes you
   3.585 +to choose that version for the Program.
   3.586 +
   3.587 +  Later license versions may give you additional or different
   3.588 +permissions.  However, no additional obligations are imposed on any
   3.589 +author or copyright holder as a result of your choosing to follow a
   3.590 +later version.
   3.591 +
   3.592 +  15. Disclaimer of Warranty.
   3.593 +
   3.594 +  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
   3.595 +APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
   3.596 +HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
   3.597 +OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
   3.598 +THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   3.599 +PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
   3.600 +IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
   3.601 +ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
   3.602 +
   3.603 +  16. Limitation of Liability.
   3.604 +
   3.605 +  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
   3.606 +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
   3.607 +THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
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   3.611 +PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
   3.612 +EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
   3.613 +SUCH DAMAGES.
   3.614 +
   3.615 +  17. Interpretation of Sections 15 and 16.
   3.616 +
   3.617 +  If the disclaimer of warranty and limitation of liability provided
   3.618 +above cannot be given local legal effect according to their terms,
   3.619 +reviewing courts shall apply local law that most closely approximates
   3.620 +an absolute waiver of all civil liability in connection with the
   3.621 +Program, unless a warranty or assumption of liability accompanies a
   3.622 +copy of the Program in return for a fee.
   3.623 +
   3.624 +                     END OF TERMS AND CONDITIONS
   3.625 +
   3.626 +            How to Apply These Terms to Your New Programs
   3.627 +
   3.628 +  If you develop a new program, and you want it to be of the greatest
   3.629 +possible use to the public, the best way to achieve this is to make it
   3.630 +free software which everyone can redistribute and change under these terms.
   3.631 +
   3.632 +  To do so, attach the following notices to the program.  It is safest
   3.633 +to attach them to the start of each source file to most effectively
   3.634 +state the exclusion of warranty; and each file should have at least
   3.635 +the "copyright" line and a pointer to where the full notice is found.
   3.636 +
   3.637 +    <one line to give the program's name and a brief idea of what it does.>
   3.638 +    Copyright (C) <year>  <name of author>
   3.639 +
   3.640 +    This program is free software: you can redistribute it and/or modify
   3.641 +    it under the terms of the GNU General Public License as published by
   3.642 +    the Free Software Foundation, either version 3 of the License, or
   3.643 +    (at your option) any later version.
   3.644 +
   3.645 +    This program is distributed in the hope that it will be useful,
   3.646 +    but WITHOUT ANY WARRANTY; without even the implied warranty of
   3.647 +    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   3.648 +    GNU General Public License for more details.
   3.649 +
   3.650 +    You should have received a copy of the GNU General Public License
   3.651 +    along with this program.  If not, see <http://www.gnu.org/licenses/>.
   3.652 +
   3.653 +Also add information on how to contact you by electronic and paper mail.
   3.654 +
   3.655 +  If the program does terminal interaction, make it output a short
   3.656 +notice like this when it starts in an interactive mode:
   3.657 +
   3.658 +    <program>  Copyright (C) <year>  <name of author>
   3.659 +    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
   3.660 +    This is free software, and you are welcome to redistribute it
   3.661 +    under certain conditions; type `show c' for details.
   3.662 +
   3.663 +The hypothetical commands `show w' and `show c' should show the appropriate
   3.664 +parts of the General Public License.  Of course, your program's commands
   3.665 +might be different; for a GUI interface, you would use an "about box".
   3.666 +
   3.667 +  You should also get your employer (if you work as a programmer) or school,
   3.668 +if any, to sign a "copyright disclaimer" for the program, if necessary.
   3.669 +For more information on this, and how to apply and follow the GNU GPL, see
   3.670 +<http://www.gnu.org/licenses/>.
   3.671 +
   3.672 +  The GNU General Public License does not permit incorporating your program
   3.673 +into proprietary programs.  If your program is a subroutine library, you
   3.674 +may consider it more useful to permit linking proprietary applications with
   3.675 +the library.  If this is what you want to do, use the GNU Lesser General
   3.676 +Public License instead of this License.  But first, please read
   3.677 +<http://www.gnu.org/philosophy/why-not-lgpl.html>.

     4.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     4.2 +++ b/README.md	Wed Feb 17 23:55:43 2016 +0300
     4.3 @@ -0,0 +1,24 @@
     4.4 +# Serpentron
     4.5 +
     4.6 +Implementation of a classic arcade game.  Survive as long as possible
     4.7 +without hitting anything.  Up to 4 players can play on a single
     4.8 +computer. Players with the same color form a team.  The scoring system
     4.9 +is balanced for all possible team configurations.
    4.10 +
    4.11 +[Play here](http://www.games1729.com/serpentron/)
    4.12 +
    4.13 +## Getting Started
    4.14 +
    4.15 +Install Amber and create an Amber project, as shown in
    4.16 +[Amber Instructions](https://github.com/amber-smalltalk/amber#prerequisites).
    4.17 +
    4.18 +To bring project alive after cloning the repository:
    4.19 +
    4.20 +```sh
    4.21 +npm install
    4.22 +bower install
    4.23 +grunt default devel
    4.24 +```
    4.25 +
    4.26 +Developing the project (after brought alive): start server with 
    4.27 +`amber serve` and go to `http://localhost:4000/`.

     5.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     5.2 +++ b/bower.json	Wed Feb 17 23:55:43 2016 +0300
     5.3 @@ -0,0 +1,39 @@
     5.4 +{
     5.5 +  "name": "serpentron",
     5.6 +  "description": "Implementation of a classic arcade game. Survive as long as possible without hitting anything.",
     5.7 +  "ignore": [
     5.8 +    "**/.*",
     5.9 +    "node_modules",
    5.10 +    "bower_components",
    5.11 +    "/*.js",
    5.12 +    "/*.html",
    5.13 +    "test",
    5.14 +    "tests"
    5.15 +  ],
    5.16 +  "authors": [
    5.17 +    {
    5.18 +      "name": "Mikhail Kryshen",
    5.19 +      "email": "mikhail@kryshen.net"
    5.20 +    }
    5.21 +  ],
    5.22 +  "homepage": "http://www.games1729.com/serpentron/",
    5.23 +  "keywords": [
    5.24 +    "Amber",
    5.25 +    "Smalltalk"
    5.26 +  ],
    5.27 +  "license": [
    5.28 +    "GPL-3.0"
    5.29 +  ],
    5.30 +  "private": false,
    5.31 +  "dependencies": {
    5.32 +    "amber": "^0.15.1",
    5.33 +    "amber-compat-es2015": "^0.1.0",
    5.34 +    "domite": "^0.4.0",
    5.35 +    "silk": "^0.2.0"
    5.36 +  },
    5.37 +  "devDependencies": {
    5.38 +    "amber-contrib-legacy": "^0.3.0",
    5.39 +    "amber-ide-starter-dialog": "^0.1.0",
    5.40 +    "helios": "^0.6.0"
    5.41 +  }
    5.42 +}

     6.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     6.2 +++ b/config-browser.js	Wed Feb 17 23:55:43 2016 +0300
     6.3 @@ -0,0 +1,2 @@
     6.4 +define("amber/Platform", ["amber_core/Platform-Browser"], {});
     6.5 +define("amber/compatibility", ["amber/browser-compatibility"], {});

     7.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     7.2 +++ b/config-node.js	Wed Feb 17 23:55:43 2016 +0300
     7.3 @@ -0,0 +1,7 @@
     7.4 +// This file is used to make additional changes
     7.5 +// when building an app to run in node.js.
     7.6 +// Free to edit. You can break tests (cli test runner uses
     7.7 +// this to build itself - it is a node executable).
     7.8 +define("amber/Platform", ["amber_core/Platform-Node"], {});
     7.9 +define("amber/compatibility", ["amber/node-compatibility"], {});
    7.10 +define("jquery", {});

     8.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     8.2 +++ b/deploy.js	Wed Feb 17 23:55:43 2016 +0300
     8.3 @@ -0,0 +1,11 @@
     8.4 +define([
     8.5 +    'amber/deploy',
     8.6 +    // Should not be required in deployment,
     8.7 +    // but something still tries to load it.
     8.8 +    'jquery',
     8.9 +    // --- packages to be deployed begin here ---
    8.10 +    'amber-serpentron/Serpentron'
    8.11 +    // --- packages to be deployed end here ---
    8.12 +], function (amber) {
    8.13 +    return amber;
    8.14 +});

     9.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     9.2 +++ b/devel.js	Wed Feb 17 23:55:43 2016 +0300
     9.3 @@ -0,0 +1,11 @@
     9.4 +define([
     9.5 +    './testing',
     9.6 +    'amber/devel',
     9.7 +    // --- packages used only during development begin here ---
     9.8 +    'amber/legacy/Benchfib',
     9.9 +    'amber/legacy/Examples',
    9.10 +    'amber/legacy/IDE'
    9.11 +    // --- packages used only during development end here ---
    9.12 +], function (amber) {
    9.13 +    return amber;
    9.14 +});

    10.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    10.2 +++ b/index.html	Wed Feb 17 23:55:43 2016 +0300
    10.3 @@ -0,0 +1,162 @@
    10.4 +<!DOCTYPE html>
    10.5 +<html>
    10.6 +    <head>
    10.7 +        <title>Serpentron</title>
    10.8 +        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    10.9 +        <meta name="author" content="Mikhail Kryshen" />
   10.10 +        <script type='text/javascript' src='the.js'></script>
   10.11 +        <style>
   10.12 +         body {
   10.13 +             margin: 0;
   10.14 +             background: #333;
   10.15 +             color: #fff;
   10.16 +         }
   10.17 +         #serpentron {
   10.18 +             font-family: 'PT Sans', 'Helvetica', sans-serif;
   10.19 +         }
   10.20 +         #title {
   10.21 +             overflow: auto;
   10.22 +             padding: 5px 10px;
   10.23 +             height: 25px;
   10.24 +             background: #ddd;
   10.25 +             color: black;
   10.26 +         }
   10.27 +         #title h1 {
   10.28 +             display: inline;
   10.29 +             margin: 0 15px 0 0;
   10.30 +             padding: 0;
   10.31 +             line-height: 24px;
   10.32 +             font-size: 22px;
   10.33 +             font-weight: bold;
   10.34 +         }
   10.35 +         #title h1 a,
   10.36 +         #title h1 a:visited {
   10.37 +             color: #00c;
   10.38 +         }
   10.39 +         #status {
   10.40 +             display: inline;
   10.41 +             font-weight: bold;
   10.42 +         }
   10.43 +         #status .player-color {
   10.44 +             filter: brightness(60%) saturate(180%);
   10.45 +         }
   10.46 +         #serpentron canvas {
   10.47 +             position: absolute;
   10.48 +             width: 100%;
   10.49 +             height: 100%;
   10.50 +             /* image-rendering: optimizeSpeed;
   10.51 +                image-rendering: -moz-crisp-edges;
   10.52 +                image-rendering: -webkit-optimize-contrast;
   10.53 +                image-rendering: -o-crisp-edges; */
   10.54 +             image-rendering: pixelated;         
   10.55 +             /* -ms-interpolation-mode: nearest-neighbor; */
   10.56 +         }
   10.57 +         #field {
   10.58 +             position: relative;
   10.59 +             clear: both;
   10.60 +         }
   10.61 +         #start-screen {
   10.62 +             background: rgba(0, 0, 0, 0.7);
   10.63 +             margin: 0;
   10.64 +             padding: 15px;
   10.65 +             position: absolute;
   10.66 +             top: 0;
   10.67 +             left: 0;
   10.68 +             bottom: 0;
   10.69 +             right: 0;
   10.70 +         }
   10.71 +         #message {
   10.72 +             color: white;
   10.73 +             text-shadow: 1px 1px 1px #000;
   10.74 +             background: rgba(0, 0, 0, 0.8);
   10.75 +             font-size: 28px;
   10.76 +             font-weight: bold;
   10.77 +             text-align: center;
   10.78 +             padding: 1em;
   10.79 +             position: absolute;
   10.80 +             top: 50%;
   10.81 +             left: 50%;
   10.82 +             transform: translateX(-50%) translateY(-50%);
   10.83 +             -webkit-transform: translateX(-50%) translateY(-50%);
   10.84 +             border: 2px solid #aaa;
   10.85 +             border-radius: 1em;
   10.86 +         }
   10.87 +         #message .player-color {
   10.88 +             filter: brightness(150%) saturate(90%);
   10.89 +         }
   10.90 +         .player {
   10.91 +             margin: 10px 0;
   10.92 +         }
   10.93 +         .color-selector {
   10.94 +             margin-right: 5px;
   10.95 +             vertical-align: center;
   10.96 +         }
   10.97 +         .player input,
   10.98 +         .player select {
   10.99 +             vertical-align: middle;
  10.100 +             background: rgba(60, 60, 60, 0.7);
  10.101 +             color: white;
  10.102 +             border: solid 2px grey;
  10.103 +             outline: none;
  10.104 +             margin: 0 5px;
  10.105 +         }
  10.106 +         .color-button,
  10.107 +         .selected-color-button {
  10.108 +             display: inline-block;
  10.109 +             vertical-align: middle;
  10.110 +             text-align: center;
  10.111 +             width: 21px;
  10.112 +             height: 21px;
  10.113 +         }
  10.114 +         .color-button span,
  10.115 +         .selected-color-button span {
  10.116 +             color: white;
  10.117 +             vertical-align: middle;
  10.118 +         }
  10.119 +         .color-button {
  10.120 +             padding: 2px;
  10.121 +         }
  10.122 +         .selected-color-button {
  10.123 +             padding: 0;
  10.124 +             border: solid 2px white;
  10.125 +         }
  10.126 +         .color-button:hover {
  10.127 +             padding: 0;
  10.128 +             border: solid 2px #ccc;
  10.129 +         }
  10.130 +         #start-screen button {
  10.131 +             background: white;
  10.132 +             color: black;
  10.133 +             border: none;
  10.134 +             padding: 2px 5px;
  10.135 +             margin: 5px 10px 5px 0;
  10.136 +         }
  10.137 +         .visible {
  10.138 +             visibility: visible;
  10.139 +             opacity: 1;
  10.140 +             transition: visibility 0s, opacity 0.2s linear;
  10.141 +             -moz-transition: visibility 0s, opacity 0.2s linear;
  10.142 +         }
  10.143 +         .hidden {
  10.144 +             visibility: hidden;
  10.145 +             opacity: 0;
  10.146 +             transition: visibility 0.2s, opacity 0.2s linear;
  10.147 +             -moz-transition: visibility 0.2s, opacity 0.2s linear;
  10.148 +         }
  10.149 +        </style>
  10.150 +    </head>
  10.151 +    <body>
  10.152 +        <div id="serpentron"></div>
  10.153 +        <script type='text/javascript'>
  10.154 +         require(['app'], function (amber) {
  10.155 +             amber.initialize({
  10.156 +                 //used for all new packages in IDE
  10.157 +                 'transport.defaultAmdNamespace': "amber-serpentron"
  10.158 +             }).then(function () {
  10.159 +                 require(["amber-ide-starter-dialog"], function (dlg) { dlg.start(); });
  10.160 +                 amber.globals.Serpentron._start();
  10.161 +             });
  10.162 +         });
  10.163 +        </script>
  10.164 +    </body>
  10.165 +</html>

    11.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    11.2 +++ b/local.amd.json	Wed Feb 17 23:55:43 2016 +0300
    11.3 @@ -0,0 +1,5 @@
    11.4 +{
    11.5 +    "paths": {
    11.6 +        "amber-serpentron": "src"
    11.7 +    }
    11.8 +}
    11.9 \ No newline at end of file

    12.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    12.2 +++ b/package.json	Wed Feb 17 23:55:43 2016 +0300
    12.3 @@ -0,0 +1,42 @@
    12.4 +{
    12.5 +  "name": "serpentron",
    12.6 +  "title": "Serpentron",
    12.7 +  "description": "Implementation of a classic arcade game. Survive as long as possible without hitting anything.",
    12.8 +  "version": "1.0.0-beta",
    12.9 +  "homepage": "http://www.games1729.com/serpentron/",
   12.10 +  "author": {
   12.11 +    "name": "Mikhail Kryshen",
   12.12 +    "email": "mikhail@kryshen.net"
   12.13 +  },
   12.14 +  "repository": {
   12.15 +    "type": "git",
   12.16 +    "url": ""
   12.17 +  },
   12.18 +  "bugs": {
   12.19 +    "url": ""
   12.20 +  },
   12.21 +  "licenses": [
   12.22 +    {
   12.23 +      "type": "GPL-3.0",
   12.24 +      "url": "http://www.gnu.org/licenses/gpl.html"
   12.25 +    }
   12.26 +  ],
   12.27 +  "engines": {
   12.28 +    "node": "0.10.x || 0.12.x || >=4.0.0"
   12.29 +  },
   12.30 +  "scripts": {
   12.31 +    "test": "grunt test"
   12.32 +  },
   12.33 +  "devDependencies": {
   12.34 +    "amber-dev": "^0.8.2",
   12.35 +    "grunt": "^0.4.5",
   12.36 +    "grunt-contrib-clean": "^0.7.0",
   12.37 +    "grunt-contrib-requirejs": "^0.4.4",
   12.38 +    "grunt-execute": "^0.2.2",
   12.39 +    "requirejs": "^2.1.15"
   12.40 +  },
   12.41 +  "keywords": [
   12.42 +    "Amber",
   12.43 +    "Smalltalk"
   12.44 +  ]
   12.45 +}
   12.46 \ No newline at end of file

    13.1 Binary file resources/skin.png has changed

    14.1 Binary file skin/background.png has changed

    15.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    15.2 +++ b/skin/compose.rkt	Wed Feb 17 23:55:43 2016 +0300
    15.3 @@ -0,0 +1,38 @@
    15.4 +#lang racket
    15.5 +(require 2htdp/image)
    15.6 +(require lang/posn)
    15.7 +
    15.8 +(define background (bitmap/file "background.png"))
    15.9 +(define tile (bitmap/file "tile.png"))
   15.10 +(define snake (bitmap/file "snake.png"))
   15.11 +(define snake-mask (bitmap/file "snake_mask.png"))
   15.12 +
   15.13 +(define s (image-width tile))
   15.14 +
   15.15 +(define head (crop 0 0 s s snake))
   15.16 +(define head-mask (crop 0 0 s s snake-mask))
   15.17 +
   15.18 +(define body (crop 0 s s s snake))
   15.19 +(define body-mask (crop 0 s s s snake-mask))
   15.20 +
   15.21 +(define corner (crop 0 (* s 2) s s snake))
   15.22 +(define corner-mask (crop 0 (* s 2) s s snake-mask))
   15.23 +
   15.24 +(define (orientations pict)
   15.25 +  (beside/align "top"
   15.26 +                pict
   15.27 +                (rotate -90 pict)
   15.28 +                (rotate 180 pict)
   15.29 +                (rotate 90 pict)))
   15.30 +
   15.31 +(save-image
   15.32 + (above/align "left"
   15.33 +              background
   15.34 +              (beside tile
   15.35 +                      (orientations head)
   15.36 +                      (orientations body)
   15.37 +                      (orientations corner)
   15.38 +                      (orientations head-mask)
   15.39 +                      (orientations body-mask)
   15.40 +                      (orientations corner-mask)))
   15.41 + "skin.png")

    16.1 Binary file skin/snake.png has changed

    17.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    17.2 +++ b/skin/snake.svg	Wed Feb 17 23:55:43 2016 +0300
    17.3 @@ -0,0 +1,156 @@
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    17.8 +   xmlns:dc="http://purl.org/dc/elements/1.1/"
    17.9 +   xmlns:cc="http://creativecommons.org/ns#"
   17.10 +   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
   17.11 +   xmlns:svg="http://www.w3.org/2000/svg"
   17.12 +   xmlns="http://www.w3.org/2000/svg"
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   17.20 +   height="42"
   17.21 +   width="28"
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  17.149 +      <path
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  17.153 +      <path
  17.154 +         id="path4415"
  17.155 +         style="stroke-linejoin:miter;opacity:1.0;stroke-opacity:1;fill-rule:evenodd;fill-opacity:1.0;stroke:none;stroke-linecap:butt;stroke-width:1.0;fill:#ffffff"
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  17.157 +    </g>
  17.158 +  </g>
  17.159 +</svg>

    18.1 Binary file skin/snake.xcf.gz has changed

    19.1 Binary file skin/snake_mask.png has changed

    20.1 Binary file skin/tile.png has changed

    21.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    21.2 +++ b/src/Serpentron-Tests.st	Wed Feb 17 23:55:43 2016 +0300
    21.3 @@ -0,0 +1,5 @@
    21.4 +Smalltalk createPackage: 'Serpentron-Tests'!
    21.5 +TestCase subclass: #SerpentronTest
    21.6 +	instanceVariableNames: ''
    21.7 +	package: 'Serpentron-Tests'!
    21.8 +

    22.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    22.2 +++ b/src/Serpentron.st	Wed Feb 17 23:55:43 2016 +0300
    22.3 @@ -0,0 +1,1230 @@
    22.4 +Smalltalk createPackage: 'Serpentron'!
    22.5 +(Smalltalk packageAt: 'Serpentron') imports: {'silk/Silk'}!
    22.6 +Object subclass: #Serpentron
    22.7 +	instanceVariableNames: 'field skin players playerColors controllerPrototypes score pointsToWin'
    22.8 +	package: 'Serpentron'!
    22.9 +!Serpentron commentStamp!
   22.10 +The game UI.!
   22.11 +
   22.12 +!Serpentron methodsFor: 'initialization'!
   22.13 +
   22.14 +initialize
   22.15 +	super initialize.
   22.16 +	playerColors := #('#377eb8' '#e41a1c' '#4daf4a' '#ff7f00' '#984ea3' '#b3ad78').
   22.17 +	skin := TronSkin new.
   22.18 +	field := TronField new
   22.19 +		skin: skin;
   22.20 +		onEndGame: [ self handleEndGame ].
   22.21 +	self initializePlayers; initializeControllers.
   22.22 +	(Silk fromElement: document)
   22.23 +		on: #keydown bind: [ :event | field keyDown: event ].
   22.24 +! !
   22.25 +
   22.26 +!Serpentron methodsFor: 'private'!
   22.27 +
   22.28 +handleEndGame
   22.29 +	| color |
   22.30 +	field isGameFinished
   22.31 +		"Interrupted game, no winner."
   22.32 +		ifFalse: [ ^ self startScreenVisible: true ].
   22.33 +	color := field winningColorIfNone: [ 
   22.34 +		^ self status: 'No winner in this round.'; nextRound ].
   22.35 +	self updateScore.
   22.36 +	(score anySatisfy: [ :each | each >= pointsToWin ])
   22.37 +		ifFalse: [
   22.38 +			self status: (self winnerDOM: color) << ' won the round.'.
   22.39 +			^ self nextRound ].
   22.40 +	self status: self scoreDOM.
   22.41 +	window
   22.42 +		setTimeout: [ 
   22.43 +			self startScreenVisible: true.
   22.44 +			self hideMessage.
   22.45 +			self status: self scoreDOM << '. ' << (self winnerDOM: color) << ' won!!' ]
   22.46 +		after: 2000.	
   22.47 +	window
   22.48 +		setTimeout: [ self showMessage: (self winnerDOM: color) << ' won!!' ]
   22.49 +		after: 1000.
   22.50 +!
   22.51 +
   22.52 +hideMessage
   22.53 +	(Silk at: '#message') element className: 'hidden'.
   22.54 +!
   22.55 +
   22.56 +initializeControllers
   22.57 +	controllerPrototypes := {
   22.58 +		TronKeyboardController new
   22.59 +			keyMap: #{
   22.60 +				38 -> (0 @ -1).
   22.61 +				39 -> (1 @ 0).
   22.62 +				40 -> (0 @ 1).
   22.63 +				37 -> (-1 @ 0)}
   22.64 +			name: 'arrows'.
   22.65 +		TronKeyboardController new
   22.66 +			keyMap: #{
   22.67 +				87 -> (0 @ -1).
   22.68 +				68 -> (1 @ 0).
   22.69 +				83 -> (0 @ 1).
   22.70 +				65 -> (-1 @ 0)}
   22.71 +			name: 'WASD'.
   22.72 +		TronKeyboardController new
   22.73 +			keyMap: #{
   22.74 +				89 -> (0 @ -1).
   22.75 +				74 -> (1 @ 0).
   22.76 +				72 -> (0 @ 1).
   22.77 +				71 -> (-1 @ 0)}
   22.78 +			name: 'YGHJ'.
   22.79 +		TronKeyboardController new
   22.80 +			keyMap: #{
   22.81 +				80 -> (0 @ -1).
   22.82 +				222 -> (1 @ 0).
   22.83 +				59 -> (0 @ 1).
   22.84 +				76 -> (-1 @ 0)}
   22.85 +			name: 'PL;'''.
   22.86 +		TronComputerController1 new.
   22.87 +		"TronRandomController new"
   22.88 +	}.
   22.89 +	(players at: 1) controller: (controllerPrototypes at: 1) copy.
   22.90 +	(players at: 2) controller: (controllerPrototypes at: 5) copy.
   22.91 +	(players at: 3) controller: (controllerPrototypes at: 5) copy.
   22.92 +	(players at: 4) controller: (controllerPrototypes at: 5) copy.
   22.93 +!
   22.94 +
   22.95 +initializePlayers
   22.96 +	players := { 
   22.97 +		TronPlayer new
   22.98 +			name: 'Player 1';
   22.99 +			color: (playerColors at: 1).
  22.100 +		TronPlayer new
  22.101 +			name: 'Player 2';
  22.102 +			color: (playerColors at: 2).
  22.103 +		TronPlayer new
  22.104 +			name: 'Player 3';
  22.105 +			color: (playerColors at: 3);
  22.106 +			enabled: false.
  22.107 +		TronPlayer new
  22.108 +			name: 'Player 4';
  22.109 +			color: (playerColors at: 4);
  22.110 +			enabled: false
  22.111 +	}.
  22.112 +!
  22.113 +
  22.114 +nextRound
  22.115 +	window
  22.116 +		setTimeout: [
  22.117 +			self status: self scoreDOM.
  22.118 +			field start: field players ]
  22.119 +		after: 2000.
  22.120 +!
  22.121 +
  22.122 +randomizePlayerColors
  22.123 +	| enabledPlayers |
  22.124 +	enabledPlayers := players select: #isEnabled.
  22.125 +	enabledPlayers do: [ :each |
  22.126 +		| color |
  22.127 +		[ color := playerColors atRandom.
  22.128 +		  enabledPlayers allSatisfy: [ :p |
  22.129 +		  	  p = each | (p color ~= color) ]
  22.130 +		] whileFalse.
  22.131 +		each color: color.
  22.132 +	].
  22.133 +!
  22.134 +
  22.135 +randomizeTeams
  22.136 +	| colorA colorB teamA |
  22.137 +	players do: [ :each | each enabled: true ].
  22.138 +	colorA := playerColors atRandom.
  22.139 +	[ colorB := playerColors atRandom.
  22.140 +	  colorB = colorA ] whileTrue.
  22.141 +	teamA := players copy.
  22.142 +	players size // 2 
  22.143 +		timesRepeat: [ (teamA remove: teamA atRandom) color: colorB ].
  22.144 +	teamA do: [ :each | each color: colorA ].
  22.145 +!
  22.146 +
  22.147 +renderColorSelectorFor: aPlayer on: aSilk
  22.148 +	| container buttons onChange |
  22.149 +	container := aSilk SPAN: {#class -> 'color-selector'}.
  22.150 +	buttons := Dictionary from:
  22.151 +		(playerColors collect: [ :each |
  22.152 +			| button |
  22.153 +			button := container A.
  22.154 +			button on: #click bind: [ 
  22.155 +				aPlayer enabled: true; color: each.
  22.156 +				self validatePlayerColor: aPlayer ].
  22.157 +			button element style background: each.
  22.158 +			each -> button ]).
  22.159 +	buttons at: #disabled put: (container A
  22.160 +		SPAN: '✗';
  22.161 +		on: #click bind: [ 
  22.162 +			aPlayer enabled: false.
  22.163 +			self validatePlayerColor: aPlayer ]).
  22.164 +	onChange := [
  22.165 +		buttons keysAndValuesDo: [ :k :v |
  22.166 +			(aPlayer isEnabled not & k = #disabled) |
  22.167 +				(aPlayer isEnabled & k = aPlayer color)
  22.168 +					ifTrue: [ v element className: 'selected-color-button' ]
  22.169 +					ifFalse: [ v element className: 'color-button' ] ] ].
  22.170 +	aPlayer
  22.171 +		onEnabledChange: onChange;
  22.172 +		onColorChange: onChange.
  22.173 +	onChange value.
  22.174 +!
  22.175 +
  22.176 +renderControllerSelectorFor: aPlayer on: aSilk
  22.177 +	| select options onChange |
  22.178 +	select := aSilk SELECT.
  22.179 +	options := Dictionary new.
  22.180 +	controllerPrototypes do: [ :each |
  22.181 +		options at: each name put: (select OPTION: each name) element ].
  22.182 +	select
  22.183 +		on: #change
  22.184 +		bind: [
  22.185 +			aPlayer controller:
  22.186 +				(controllerPrototypes
  22.187 +					detect: [ :each | each name = select element value ])
  22.188 +						copy ].
  22.189 +	onChange := [
  22.190 +		| value |
  22.191 +		value := aPlayer controller name.
  22.192 +		(options at: value) selected: 'selected'.
  22.193 +		aPlayer controller class = TronKeyboardController
  22.194 +			ifTrue: [
  22.195 +				players do: [ :each |
  22.196 +					(each ~= aPlayer and: [ each controller name = value ])
  22.197 +						ifTrue: [ each controller: TronComputerController1 new ]]]].
  22.198 +	aPlayer onControllerChange: onChange.
  22.199 +	onChange value.
  22.200 +!
  22.201 +
  22.202 +renderPlayer: aPlayer on: aSilk
  22.203 +	| container |
  22.204 +	container := aSilk DIV: { #class -> 'player' }.
  22.205 +	self renderColorSelectorFor: aPlayer on: container.
  22.206 +	(container INPUT
  22.207 +		on: #change bind: [ :event |
  22.208 +			aPlayer name: event target value ])
  22.209 +		element value: aPlayer name.
  22.210 +	self renderControllerSelectorFor: aPlayer on: container.
  22.211 +!
  22.212 +
  22.213 +renderStartScreenOn: aSilk
  22.214 +	| startScreen |
  22.215 +	startScreen := aSilk DIV: {#id -> 'start-screen'}.
  22.216 +	
  22.217 +	players do: [ :each | self renderPlayer: each on: startScreen ].
  22.218 +	
  22.219 +	(startScreen BUTTON: 'Random colors')
  22.220 +		on: #click bind: [ self randomizePlayerColors ].
  22.221 +	(startScreen BUTTON: 'Random teams')
  22.222 +		on: #click bind: [ self randomizeTeams ].
  22.223 +
  22.224 +	startScreen BR.
  22.225 +
  22.226 +	(startScreen BUTTON: 'Start')
  22.227 +		on: #click bind: [ :event | self startGame; status: self scoreDOM ].
  22.228 +!
  22.229 +
  22.230 +scoreDOM
  22.231 +	| message |
  22.232 +	message := Silk SPAN: 'Score: '.
  22.233 +	score associations
  22.234 +		do: [ :each | 
  22.235 +			(message SPAN: {#class -> 'player-color'. (each value * 10) rounded / 10})
  22.236 +				element style color: each key ]
  22.237 +		separatedBy: [ message << ':' ].
  22.238 +	message << ('/', pointsToWin).
  22.239 +	^ message.
  22.240 +!
  22.241 +
  22.242 +showMessage: anObject
  22.243 +	((Silk at: '#message') resetContents << anObject)
  22.244 +		element className: 'visible'.
  22.245 +!
  22.246 +
  22.247 +startGame
  22.248 +	| enabledPlayers |
  22.249 +	self startScreenVisible: false.
  22.250 +	field start: (players select: #isEnabled).
  22.251 +	pointsToWin := (30 / (field players size + 1)) ceiling.
  22.252 +	score := field colors collect: [ :each | 0 ].
  22.253 +!
  22.254 +
  22.255 +startScreenVisible: aBoolean
  22.256 +	(Silk at: '#start-screen') element 
  22.257 +		className: (aBoolean ifTrue: [ 'visible' ] ifFalse: [ 'hidden' ])
  22.258 +!
  22.259 +
  22.260 +status: anObject
  22.261 +	'#status' asSilk resetContents << anObject
  22.262 +!
  22.263 +
  22.264 +updateScore
  22.265 +	| color teamSize alive points defeated |
  22.266 +	color := field winningColorIfNone: [ ^ self ].
  22.267 +	teamSize := field colors at: color.
  22.268 +	defeated := field players size - teamSize.
  22.269 +	alive := field liveColors at: color.
  22.270 +	points := defeated * alive / teamSize * (teamSize + 1) / 2.
  22.271 +	points := points / (field players size - 1).
  22.272 +	score at: color	put: (score at: color) + points.
  22.273 +!
  22.274 +
  22.275 +validatePlayerColor: aPlayer
  22.276 +	| enabledPlayers otherPlayers freeColor |
  22.277 +	enabledPlayers := players select: #isEnabled.
  22.278 +	((enabledPlayers collect: #color) asSet size > 1)
  22.279 +		ifTrue: [ ^ self ].
  22.280 +	freeColor := playerColors detect: [ :each | each ~= enabledPlayers anyOne color ].
  22.281 +	otherPlayers := players select: [ :each | each ~~ aPlayer ].
  22.282 +	(otherPlayers
  22.283 +		detect: [ :each | each isEnabled not ]
  22.284 +		ifNone: [ otherPlayers first ])
  22.285 +			enabled: true;
  22.286 +			color: freeColor.
  22.287 +!
  22.288 +
  22.289 +winnerDOM: color
  22.290 +	| names team message |	
  22.291 +	team := field players select: [ :each | each color = color ].
  22.292 +	names := ''.
  22.293 +	(team collect: #name)
  22.294 +		do: [ :each | names := names, each]
  22.295 +		separatedBy: [ names := names, ' and ' ].
  22.296 +	message := Silk SPAN.
  22.297 +	(message SPAN: {#class -> 'player-color'. names})
  22.298 +		element style color: color.
  22.299 +	^ message
  22.300 +! !
  22.301 +
  22.302 +!Serpentron methodsFor: 'rendering'!
  22.303 +
  22.304 +augmentPage
  22.305 +	'#serpentron' asSilk resetContents << 'Loading...'.
  22.306 +	skin
  22.307 +		load: 'resources/skin.png'
  22.308 +		andDo: [ '#serpentron' asSilk resetContents << self ]
  22.309 +!
  22.310 +
  22.311 +renderOnSilk: aSilk
  22.312 +	| scale container width height |
  22.313 +	scale := 1.
  22.314 +	skin tileSize >= 20
  22.315 +		ifTrue: [ scale := 0.5 ].
  22.316 +	skin tileSize < 10
  22.317 +		ifTrue: [ scale := 2].
  22.318 +	
  22.319 +	width := field fieldSize x * skin tileSize * scale.
  22.320 +	height := field fieldSize y * skin tileSize * scale.
  22.321 +	
  22.322 +	aSilk element style
  22.323 +		width: width asString , 'px'.
  22.324 +	
  22.325 +	(aSilk DIV: {#id -> 'title'})
  22.326 +		H1: (Silk A: {	#href -> 'http://www.games1729.com/serpentron/'.
  22.327 +						#target -> '_top'.
  22.328 +						'Serpentron'});
  22.329 +		SPAN: {#id -> 'status'. '1.0 beta'}.
  22.330 +	
  22.331 +	container := aSilk DIV: {#id -> 'field'}.
  22.332 +	container element style
  22.333 +		width: width asString , 'px';
  22.334 +		height: height asString , 'px'.
  22.335 +	
  22.336 +	container << field.
  22.337 +	self renderStartScreenOn: container.
  22.338 +
  22.339 +	(container DIV: {#id -> 'message'. #class -> 'hidden'})
  22.340 +		element style
  22.341 +			margin: '0 auto'.
  22.342 +	
  22.343 +	aSilk << container.
  22.344 +! !
  22.345 +
  22.346 +Serpentron class instanceVariableNames: 'Instance'!
  22.347 +
  22.348 +!Serpentron class methodsFor: 'starting'!
  22.349 +
  22.350 +start
  22.351 +	(Instance := self new) augmentPage
  22.352 +! !
  22.353 +
  22.354 +Object subclass: #TronCollider
  22.355 +	instanceVariableNames: 'canvas context skin animationRequest lastFrameTime particles particlePool particlesPerCollision'
  22.356 +	package: 'Serpentron'!
  22.357 +!TronCollider commentStamp!
  22.358 +Particle system for collision effect.!
  22.359 +
  22.360 +!TronCollider methodsFor: 'accessing'!
  22.361 +
  22.362 +canvas: aCanvas
  22.363 +	canvas := aCanvas.
  22.364 +	context := canvas getContext: '2d'.
  22.365 +!
  22.366 +
  22.367 +skin: aTronSkin
  22.368 +	skin := aTronSkin
  22.369 +! !
  22.370 +
  22.371 +!TronCollider methodsFor: 'initialization'!
  22.372 +
  22.373 +initialize
  22.374 +	super initialize.
  22.375 +	particlesPerCollision := 200.
  22.376 +	particlePool := Queue new.
  22.377 +	particlesPerCollision * 2 + 10 timesRepeat: [ 
  22.378 +		particlePool nextPut: TronColliderParticle new ].
  22.379 +	particles := OrderedCollection new
  22.380 +! !
  22.381 +
  22.382 +!TronCollider methodsFor: 'private'!
  22.383 +
  22.384 +renderFrame: timestamp
  22.385 +	| liveParticles delta |
  22.386 +	delta := lastFrameTime
  22.387 +		ifNil: [ 0 ]
  22.388 +		ifNotNil: [	timestamp - lastFrameTime ].
  22.389 +	lastFrameTime := timestamp.
  22.390 +	"Transcript show: 'renderFrame: ';
  22.391 +		show: timestamp;
  22.392 +		show: '; ';
  22.393 +		show: delta;
  22.394 +		cr."
  22.395 +	liveParticles := OrderedCollection new.
  22.396 +	context clearRect: 0 y: 0 w: canvas width h: canvas height.
  22.397 +	particles do: [ :each |
  22.398 +		each
  22.399 +			update: delta;
  22.400 +			drawOn: context tileSize: skin tileSize.
  22.401 +		each
  22.402 +			ifAlive: [ liveParticles add: each ]
  22.403 +			ifNotAlive: [ particlePool nextPut: each ] ].
  22.404 +	particles := liveParticles.
  22.405 +	animationRequest := particles
  22.406 +		ifEmpty: [ nil ]
  22.407 +		ifNotEmpty: [
  22.408 +			window
  22.409 +				requestAnimationFrame: [ :ts | 
  22.410 +					self renderFrame: ts ]
  22.411 +				on: canvas ]
  22.412 +!
  22.413 +
  22.414 +startAnimation
  22.415 +	animationRequest ifNotNil: [ ^ self ].
  22.416 +	lastFrameTime := nil.
  22.417 +	animationRequest := window
  22.418 +		requestAnimationFrame: [ :ts | self renderFrame: ts ]
  22.419 +		on: canvas.
  22.420 +! !
  22.421 +
  22.422 +!TronCollider methodsFor: 'starting'!
  22.423 +
  22.424 +animateCollisionFor: aPlayer
  22.425 +	| particle |
  22.426 +	particlesPerCollision timesRepeat: [
  22.427 +		particles add: 
  22.428 +			((particlePool nextIfAbsent: [ TronColliderParticle new ])
  22.429 +				resetPosition: 
  22.430 +					aPlayer location - 0.5 - (aPlayer direction / 2)
  22.431 +				color: (Math random < 0.5
  22.432 +					ifTrue: [ aPlayer color ]
  22.433 +					ifFalse: [ '#ff3000' ])) ].
  22.434 +	self startAnimation.
  22.435 +! !
  22.436 +
  22.437 +Object subclass: #TronColliderParticle
  22.438 +	instanceVariableNames: 'color size velocity position alpha decay'
  22.439 +	package: 'Serpentron'!
  22.440 +
  22.441 +!TronColliderParticle methodsFor: 'accessing'!
  22.442 +
  22.443 +ifAlive: aliveBlock ifNotAlive: notAliveBlock
  22.444 +	^ alpha > 0.01 ifTrue: aliveBlock ifFalse:notAliveBlock
  22.445 +!
  22.446 +
  22.447 +resetPosition: positionPoint color: aString
  22.448 +	position := positionPoint.
  22.449 +	color := aString.
  22.450 +	"Particles return to the pool as soon as they die.
  22.451 +	Randomize on each reset or the pool will end up sotrted by particles' life time."
  22.452 +	alpha := 1 - (Math random * 0.5).
  22.453 +	decay := 0.997 - (Math random * 0.01)
  22.454 +! !
  22.455 +
  22.456 +!TronColliderParticle methodsFor: 'drawing'!
  22.457 +
  22.458 +drawOn: aContext tileSize: tileSize
  22.459 +	aContext
  22.460 +		globalAlpha: alpha;
  22.461 +		fillStyle: color;
  22.462 +		fillRect: (position x - (size / 2)) * tileSize
  22.463 +			y: (position y - (size / 2)) * tileSize
  22.464 +			w: size * tileSize
  22.465 +			h: size * tileSize.
  22.466 +! !
  22.467 +
  22.468 +!TronColliderParticle methodsFor: 'initialization'!
  22.469 +
  22.470 +initialize
  22.471 +	super initialize.
  22.472 +	size := (Math random * 0.3 + 0.7).
  22.473 +	velocity := (Math random - 0.5) @ (Math random - 0.5).
  22.474 +	velocity := velocity / (velocity dist: 0 @ 0) * (Math random raisedTo: 4 + 0.1) * 0.06
  22.475 +! !
  22.476 +
  22.477 +!TronColliderParticle methodsFor: 'updating'!
  22.478 +
  22.479 +update: delta
  22.480 +	position := position + (velocity * delta).
  22.481 +	alpha := alpha * (decay raisedTo: delta).
  22.482 +! !
  22.483 +
  22.484 +Object subclass: #TronController
  22.485 +	instanceVariableNames: 'field player'
  22.486 +	package: 'Serpentron'!
  22.487 +!TronController commentStamp!
  22.488 +Abstract superclass for controlling input devices and algorithms.!
  22.489 +
  22.490 +!TronController methodsFor: 'accessing'!
  22.491 +
  22.492 +field: aTronField
  22.493 +	field := aTronField
  22.494 +!
  22.495 +
  22.496 +name
  22.497 +	self subclassResponsibility.
  22.498 +!
  22.499 +
  22.500 +nextDirection: aPoint
  22.501 +	"Do not turn back."
  22.502 +	player nextDirection = (aPoint * (-1 @ -1))
  22.503 +		ifTrue: [ ^ self ].
  22.504 +	player nextDirection: aPoint.
  22.505 +!
  22.506 +
  22.507 +player: aTronPlayer
  22.508 +	player := aTronPlayer
  22.509 +! !
  22.510 +
  22.511 +!TronController methodsFor: 'computing'!
  22.512 +
  22.513 +compute
  22.514 +!
  22.515 +
  22.516 +isAtDecisionPoint
  22.517 +	| loc dir turn |
  22.518 +	player isFirstMove ifTrue: [ ^ true ].
  22.519 +	dir := player nextDirection.
  22.520 +	loc := player location.
  22.521 +	(field isFreeAt: loc + dir)
  22.522 +		ifFalse: [ ^ true ].
  22.523 +	turn := dir rotate90ccw.
  22.524 +	((field isFreeAt: loc + turn)
  22.525 +		and: [ (field isFreeAt: loc + dir + turn) not ])
  22.526 +		ifTrue: [ ^ true ].
  22.527 +	turn := dir rotate90cw.
  22.528 +	((field isFreeAt: loc + turn)
  22.529 +		and: [ (field isFreeAt: loc + dir + turn) not ])
  22.530 +		ifTrue: [ ^ true ].
  22.531 +	^ false
  22.532 +! !
  22.533 +
  22.534 +!TronController methodsFor: 'event handling'!
  22.535 +
  22.536 +keyDown: keyCode
  22.537 +	^ false
  22.538 +! !
  22.539 +
  22.540 +!TronController methodsFor: 'initialization'!
  22.541 +
  22.542 +reset
  22.543 +! !
  22.544 +
  22.545 +TronController class instanceVariableNames: 'directions'!
  22.546 +
  22.547 +TronController subclass: #TronComputerController1
  22.548 +	instanceVariableNames: 'weight aggressiveness'
  22.549 +	package: 'Serpentron'!
  22.550 +
  22.551 +!TronComputerController1 methodsFor: 'accessing'!
  22.552 +
  22.553 +name
  22.554 +	^ 'Computer'
  22.555 +! !
  22.556 +
  22.557 +!TronComputerController1 methodsFor: 'computing'!
  22.558 +
  22.559 +compute
  22.560 +	| best bestDirection |
  22.561 +	"player isFirstMove
  22.562 +		ifTrue: [ self nextDirection: TronPlayer directions atRandom ]."
  22.563 +	(self isAtDecisionPoint 
  22.564 +		or: [ (field isFreeAt: player location + (player nextDirection * 2)) not ])
  22.565 +		ifFalse: [ ^ self ].
  22.566 +	aggressiveness := 200 atRandom.
  22.567 +	best := 0.
  22.568 +	TronPlayer directions do: [ :each | 
  22.569 +		weight := 0.
  22.570 +		self scan: each.
  22.571 +		weight > best
  22.572 +			ifTrue:	[
  22.573 +				best := weight.
  22.574 +				bestDirection := each ]].
  22.575 +	bestDirection ifNil: [ ^ self ].
  22.576 +	self nextDirection: bestDirection.
  22.577 +! !
  22.578 +
  22.579 +!TronComputerController1 methodsFor: 'private'!
  22.580 +
  22.581 +extend: directionPoint from: nwPoint to: sePoint
  22.582 +	| point scanDir |
  22.583 +	scanDir := directionPoint y abs @ directionPoint x abs.
  22.584 +	point := Point
  22.585 +		x: (directionPoint x <= 0 ifTrue: [ nwPoint x ] ifFalse: [ sePoint x ])
  22.586 +		y: (directionPoint y <= 0 ifTrue: [ nwPoint y ] ifFalse: [ sePoint y ]).
  22.587 +	[ point <= sePoint ] 
  22.588 +		whileTrue: [
  22.589 +			weight := weight + 1.
  22.590 +			(field isFreeAt: point)
  22.591 +				ifFalse: [ 
  22.592 +					(self isEnemyHeadAt: point)
  22.593 +						ifTrue: [ weight := weight + aggressiveness ]
  22.594 +						ifFalse: [ ^ false ] ].
  22.595 +			point := point + scanDir ].
  22.596 +	^ true
  22.597 +!
  22.598 +
  22.599 +isEnemyHeadAt: aPoint
  22.600 +	(field playerWithHeadAt: aPoint)
  22.601 +		ifNotNil: [ :p | ^ p color ~= player color ].
  22.602 +	^ false
  22.603 +!
  22.604 +
  22.605 +scan: directionPoint
  22.606 +	| nw se nextNW nextSE directions scanDir |
  22.607 +	nw := se := player location + directionPoint.
  22.608 +	(field isFreeAt: nw) ifFalse: [ ^ self ].
  22.609 +	directions := TronPlayer directions copy
  22.610 +		remove: directionPoint * -1;
  22.611 +		yourself.
  22.612 +	[	scanDir := directions atRandom.
  22.613 +		scanDir <= 0 asPoint
  22.614 +			ifTrue: [ nextNW := nw + scanDir. nextSE := se ]
  22.615 +			ifFalse: [ nextNW := nw. nextSE := se + scanDir ].
  22.616 +		(self extend: scanDir from: nextNW to: nextSE)
  22.617 +			ifTrue: [ nw := nextNW. se := nextSE ]
  22.618 +			ifFalse: [ directions remove: scanDir ].
  22.619 +		directions isEmpty not
  22.620 +	] whileTrue.
  22.621 +! !
  22.622 +
  22.623 +TronController subclass: #TronKeyboardController
  22.624 +	instanceVariableNames: 'keyMap name'
  22.625 +	package: 'Serpentron'!
  22.626 +
  22.627 +!TronKeyboardController methodsFor: 'accessing'!
  22.628 +
  22.629 +keyMap: aDictionary name: aString
  22.630 +	keyMap := aDictionary.
  22.631 +	name := 'Keyboard: ', aString.
  22.632 +!
  22.633 +
  22.634 +name
  22.635 +	^ name
  22.636 +! !
  22.637 +
  22.638 +!TronKeyboardController methodsFor: 'event handling'!
  22.639 +
  22.640 +keyDown: keyCode
  22.641 +	self nextDirection: (keyMap at: keyCode ifAbsent: [ ^ false ]).
  22.642 +	^ true
  22.643 +! !
  22.644 +
  22.645 +TronKeyboardController class instanceVariableNames: 'keyMaps'!
  22.646 +
  22.647 +TronController subclass: #TronRandomController
  22.648 +	instanceVariableNames: ''
  22.649 +	package: 'Serpentron'!
  22.650 +
  22.651 +!TronRandomController methodsFor: 'accessing'!
  22.652 +
  22.653 +name
  22.654 +	^ 'Computer (random)'
  22.655 +! !
  22.656 +
  22.657 +!TronRandomController methodsFor: 'computing'!
  22.658 +
  22.659 +compute
  22.660 +	| dirs |
  22.661 +	(self isAtDecisionPoint or: [ 50 atRandom = 1 ])
  22.662 +		ifFalse: [ ^ self ].
  22.663 +	dirs := TronPlayer directions
  22.664 +		select: [ :each | field isFreeAt: player location + each ].
  22.665 +	dirs ifNotEmpty: [ self nextDirection: dirs atRandom ]
  22.666 +! !
  22.667 +
  22.668 +Object subclass: #TronField
  22.669 +	instanceVariableNames: 'skin size matrix players livePlayers colors liveColors canvas context collider timerId onEndGame'
  22.670 +	package: 'Serpentron'!
  22.671 +!TronField commentStamp!
  22.672 +The game field. Provides game logic and rendering.!
  22.673 +
  22.674 +!TronField methodsFor: 'accessing'!
  22.675 +
  22.676 +at: aPoint
  22.677 +	^ (matrix at: aPoint y) at: aPoint x
  22.678 +!
  22.679 +
  22.680 +at: aPoint ifAbsent: aBlock
  22.681 +	^ matrix
  22.682 +		at: aPoint y 
  22.683 +		ifPresent: [ :value | value at: aPoint x ifAbsent: aBlock ]
  22.684 +		ifAbsent: aBlock
  22.685 +!
  22.686 +
  22.687 +at: aPoint put: aSegment
  22.688 +	(matrix at: aPoint y) at: aPoint x put: aSegment
  22.689 +!
  22.690 +
  22.691 +colors
  22.692 +	^ colors
  22.693 +!
  22.694 +
  22.695 +fieldSize
  22.696 +	^ size
  22.697 +!
  22.698 +
  22.699 +isFreeAt: aPoint
  22.700 +	^ (self at: aPoint ifAbsent: [ ^ false ]) isNil
  22.701 +!
  22.702 +
  22.703 +isGameFinished
  22.704 +	^ liveColors size < 2
  22.705 +!
  22.706 +
  22.707 +liveColors
  22.708 +	^ liveColors
  22.709 +!
  22.710 +
  22.711 +playerWithHeadAt: aPoint
  22.712 +	| s |
  22.713 +	s := self at: aPoint ifAbsent: [ ^ nil ].
  22.714 +	s isHead ifTrue: [ ^ s player ] ifFalse: [ ^ nil ]
  22.715 +!
  22.716 +
  22.717 +players
  22.718 +	^ players
  22.719 +!
  22.720 +
  22.721 +skin
  22.722 +	^ skin
  22.723 +!
  22.724 +
  22.725 +skin: aTronSkin
  22.726 +	skin := aTronSkin
  22.727 +!
  22.728 +
  22.729 +winningColorIfNone: aBlock
  22.730 +	^ (liveColors size = 1)
  22.731 +		ifTrue: [ liveColors keys anyOne ]
  22.732 +		ifFalse: aBlock.
  22.733 +! !
  22.734 +
  22.735 +!TronField methodsFor: 'event handling'!
  22.736 +
  22.737 +keyDown: event
  22.738 +	"Handle Esc key."
  22.739 +	livePlayers isEmpty not & (event keyCode = 27)
  22.740 +		ifTrue: [
  22.741 +			event preventDefault.
  22.742 +			self endGame.
  22.743 +			^ self ].
  22.744 +	"Check all players rather than livePlayers 
  22.745 +	so that preventDefault is called for all used keys."
  22.746 +	(players anySatisfy: [ :each | each keyDown: event keyCode ])
  22.747 +		ifTrue: [ event preventDefault ].
  22.748 +	timerId ifNil: [ self startIfAllReady ].
  22.749 +! !
  22.750 +
  22.751 +!TronField methodsFor: 'initialization'!
  22.752 +
  22.753 +initialize
  22.754 +	super initialize.
  22.755 +	livePlayers := players := #().
  22.756 +	size := 50 @ 35
  22.757 +! !
  22.758 +
  22.759 +!TronField methodsFor: 'observing'!
  22.760 +
  22.761 +onEndGame: aBlock
  22.762 +	onEndGame := aBlock
  22.763 +! !
  22.764 +
  22.765 +!TronField methodsFor: 'private'!
  22.766 +
  22.767 +endGame
  22.768 +	self stopTimer.
  22.769 +	livePlayers := #().
  22.770 +	onEndGame ifNotNil: #value.
  22.771 +!
  22.772 +
  22.773 +killPlayer: aPlayer
  22.774 +	collider animateCollisionFor: aPlayer.
  22.775 +	livePlayers remove: aPlayer.
  22.776 +	self updateLiveColors.
  22.777 +!
  22.778 +
  22.779 +locatePlayers
  22.780 +	players size = 2 ifTrue: [
  22.781 +		(players at: 1) location: 16 @ 18.
  22.782 +		(players at: 2) location: 35 @ 18.
  22.783 +		^ self ].
  22.784 +	players size = 3 ifTrue: [
  22.785 +		(players at: 1) location: 18 @ 13.
  22.786 +		(players at: 2) location: 18 @ 23.
  22.787 +		(players at: 3) location: 33 @ 18.
  22.788 +		^ self ].
  22.789 +	players size = 4 ifTrue: [
  22.790 +		(players at: 1) location: 16 @ 11.
  22.791 +		(players at: 2) location: 35 @ 11.
  22.792 +		(players at: 3) location: 16 @ 25.
  22.793 +		(players at: 4) location: 35 @ 25.
  22.794 +		^ self ].
  22.795 +	self error: 'Invalid number of players.'
  22.796 +!
  22.797 +
  22.798 +renderCanvasOn: aSilk
  22.799 +	^ aSilk CANVAS: {
  22.800 +		#width -> (size x * skin tileSize).
  22.801 +		#height -> (size y * skin tileSize)}.
  22.802 +!
  22.803 +
  22.804 +startIfAllReady
  22.805 +	(livePlayers isEmpty not
  22.806 +		and: [ livePlayers allSatisfy: #isReady ])
  22.807 +			ifTrue: [ self startTimer ]
  22.808 +!
  22.809 +
  22.810 +startTimer
  22.811 +	timerId ifNotNil: [ self error: 'Timer already running.' ].
  22.812 +	timerId := window setInterval: [ self update ] every: 75.
  22.813 +!
  22.814 +
  22.815 +stopTimer
  22.816 +	timerId ifNotNil: [
  22.817 +		window clearInterval: timerId.
  22.818 +		timerId := nil ]
  22.819 +!
  22.820 +
  22.821 +update
  22.822 +	| lpCopy |
  22.823 +	lpCopy := livePlayers copy.
  22.824 +	lpCopy do: [ :each |
  22.825 +		| l |
  22.826 +		l := each location.
  22.827 +		self at: l put: each move.
  22.828 +		skin drawField: self on: context at: l ].
  22.829 +	lpCopy do: [ :each |
  22.830 +		| l other |
  22.831 +		l := each location.
  22.832 +		(self isFreeAt: l)
  22.833 +			ifTrue: [ self at: l put: each headSegment. ]
  22.834 +			ifFalse: [
  22.835 +				self killPlayer: each.
  22.836 +				"Check for head-to-head collision."
  22.837 +				other := self playerWithHeadAt: l.
  22.838 +				(other isNil | (other = each))
  22.839 +					ifFalse: [ 
  22.840 +						self killPlayer: other.
  22.841 +						self at: l put: nil. ]]].
  22.842 +	livePlayers do: [ :each | 
  22.843 +		skin drawField: self on: context at: each location ].
  22.844 +	self isGameFinished ifTrue: [ ^ self endGame ].
  22.845 +	livePlayers do: #compute.
  22.846 +!
  22.847 +
  22.848 +updateLiveColors
  22.849 +	liveColors := Dictionary new.
  22.850 +	livePlayers do: [ :each |
  22.851 +		liveColors
  22.852 +			at: each color
  22.853 +			ifPresent: [ :v | liveColors at: each color put: v + 1 ]
  22.854 +			ifAbsent: [ liveColors at: each color put: 1 ]].
  22.855 +! !
  22.856 +
  22.857 +!TronField methodsFor: 'rendering'!
  22.858 +
  22.859 +renderOnSilk: aSilk
  22.860 +	| backgroundCanvas |
  22.861 +	
  22.862 +	backgroundCanvas := (self renderCanvasOn: aSilk) element.
  22.863 +	
  22.864 +	canvas := (self renderCanvasOn: aSilk) element.
  22.865 +	context := canvas getContext: '2d'.
  22.866 +	
  22.867 +	collider := TronCollider new
  22.868 +		canvas: (self renderCanvasOn: aSilk) element;
  22.869 +		skin: skin.
  22.870 +	
  22.871 +	skin drawBackgroundOn: (backgroundCanvas getContext: '2d') from: 1 @ 1 to: size
  22.872 +! !
  22.873 +
  22.874 +!TronField methodsFor: 'starting'!
  22.875 +
  22.876 +start: anArrayOfPlayers
  22.877 +	players := anArrayOfPlayers.
  22.878 +	livePlayers := players copy.
  22.879 +	self updateLiveColors.
  22.880 +	colors := liveColors.
  22.881 +	matrix := (1 to: size y) collect: [ :i | Array new: size x ].
  22.882 +	context clearRect: 0 y: 0 w: canvas width h: canvas height.
  22.883 +	self locatePlayers.
  22.884 +	players do: [ :each | each field: self; reset; compute ].
  22.885 +	players do: [ :each |
  22.886 +		self at: each location put: each headSegment.
  22.887 +		skin drawField: self on: context at: each location ].
  22.888 +	self startIfAllReady.
  22.889 +! !
  22.890 +
  22.891 +Object subclass: #TronPlayer
  22.892 +	instanceVariableNames: 'enabled color name controller segments location moved direction nextDirection onColorChange onEnabledChange onControllerChange'
  22.893 +	package: 'Serpentron'!
  22.894 +
  22.895 +!TronPlayer methodsFor: 'accessing'!
  22.896 +
  22.897 +color
  22.898 +	^ color
  22.899 +!
  22.900 +
  22.901 +color: anObject
  22.902 +	color := anObject.
  22.903 +	onColorChange ifNotNil: #value.
  22.904 +!
  22.905 +
  22.906 +controller
  22.907 +	^ controller
  22.908 +!
  22.909 +
  22.910 +controller: aTronController
  22.911 +	aTronController player: self.
  22.912 +	controller := aTronController.
  22.913 +	onControllerChange ifNotNil: #value.
  22.914 +!
  22.915 +
  22.916 +direction
  22.917 +	^ direction
  22.918 +!
  22.919 +
  22.920 +enabled: aBoolean
  22.921 +	enabled := aBoolean.
  22.922 +	onEnabledChange ifNotNil: #value.
  22.923 +!
  22.924 +
  22.925 +field: aField
  22.926 +	controller field: aField
  22.927 +!
  22.928 +
  22.929 +headSegment
  22.930 +	^ segments at: direction
  22.931 +!
  22.932 +
  22.933 +isEnabled
  22.934 +	^ enabled
  22.935 +!
  22.936 +
  22.937 +isFirstMove
  22.938 +	^ moved not
  22.939 +!
  22.940 +
  22.941 +isReady
  22.942 +	^ nextDirection notNil
  22.943 +!
  22.944 +
  22.945 +location
  22.946 +	^ location
  22.947 +!
  22.948 +
  22.949 +location: anObject
  22.950 +	location := anObject
  22.951 +!
  22.952 +
  22.953 +name
  22.954 +	^ name
  22.955 +!
  22.956 +
  22.957 +name: anObject
  22.958 +	name := anObject.
  22.959 +!
  22.960 +
  22.961 +nextDirection
  22.962 +	^ nextDirection
  22.963 +!
  22.964 +
  22.965 +nextDirection: aPoint
  22.966 +	moved ifFalse: [ direction := aPoint ].
  22.967 +	nextDirection := aPoint
  22.968 +! !
  22.969 +
  22.970 +!TronPlayer methodsFor: 'event handling'!
  22.971 +
  22.972 +keyDown: keyCode
  22.973 +	^ controller keyDown: keyCode
  22.974 +! !
  22.975 +
  22.976 +!TronPlayer methodsFor: 'initialization'!
  22.977 +
  22.978 +initialize
  22.979 +	super initialize.
  22.980 +	enabled := true.
  22.981 +	self reset; initializeSegments.
  22.982 +!
  22.983 +
  22.984 +reset
  22.985 +	direction := 0 @ -1.
  22.986 +	nextDirection := nil.
  22.987 +	moved := false.
  22.988 +	controller ifNotNil: [ controller reset ].
  22.989 +! !
  22.990 +
  22.991 +!TronPlayer methodsFor: 'observing'!
  22.992 +
  22.993 +onColorChange: aBlock
  22.994 +	onColorChange := aBlock.
  22.995 +!
  22.996 +
  22.997 +onControllerChange: aBlock
  22.998 +	onControllerChange := aBlock.
  22.999 +!
 22.1000 +
 22.1001 +onEnabledChange: aBlock
 22.1002 +	onEnabledChange := aBlock.
 22.1003 +! !
 22.1004 +
 22.1005 +!TronPlayer methodsFor: 'private'!
 22.1006 +
 22.1007 +initializeSegments
 22.1008 +	segments := Dictionary new.
 22.1009 +	TronPlayer directionNames keysAndValuesDo: [ :to :toName |
 22.1010 +		segments 
 22.1011 +			at: to 
 22.1012 +			put: (TronHead new 
 22.1013 +					player: self;
 22.1014 +					sprite: 'head', toName;
 22.1015 +					direction: to);
 22.1016 +			at: {to. to}
 22.1017 +			put: (TronSegment new
 22.1018 +					player: self;
 22.1019 +					sprite: 'body', toName).
 22.1020 +		TronPlayer directionNames keysAndValuesDo: [ :from :fromName |		
 22.1021 +			(from x = to x) | (from y = to y) ifFalse: [
 22.1022 +				segments
 22.1023 +					at: {from. to}
 22.1024 +					put: (TronSegment new
 22.1025 +							player: self;
 22.1026 +							sprite: 'body', fromName, 'To', toName) ]]].
 22.1027 +! !
 22.1028 +
 22.1029 +!TronPlayer methodsFor: 'updating'!
 22.1030 +
 22.1031 +compute
 22.1032 +	controller compute
 22.1033 +!
 22.1034 +
 22.1035 +move
 22.1036 +	| segment |
 22.1037 +	segment := segments at: {direction. nextDirection} ifAbsent: [ nil ].
 22.1038 +	direction := nextDirection.
 22.1039 +	location := location + direction.
 22.1040 +	moved := true.
 22.1041 +	^ segment
 22.1042 +! !
 22.1043 +
 22.1044 +TronPlayer class instanceVariableNames: 'directions directionNames'!
 22.1045 +
 22.1046 +!TronPlayer class methodsFor: 'initialization'!
 22.1047 +
 22.1048 +directionNames
 22.1049 +	^ directionNames
 22.1050 +!
 22.1051 +
 22.1052 +directions
 22.1053 +	^ directions
 22.1054 +!
 22.1055 +
 22.1056 +initialize
 22.1057 +	super initialize.
 22.1058 +	directionNames := Dictionary new
 22.1059 +		at: 0 @ -1 put: 'North';
 22.1060 +		at: 1 @ 0 put: 'East';
 22.1061 +		at: 0 @ 1 put: 'South';
 22.1062 +		at: -1 @ 0 put: 'West';
 22.1063 +		yourself.
 22.1064 +	directions := directionNames keys.
 22.1065 +! !
 22.1066 +
 22.1067 +Object subclass: #TronSegment
 22.1068 +	instanceVariableNames: 'player sprite'
 22.1069 +	package: 'Serpentron'!
 22.1070 +
 22.1071 +!TronSegment methodsFor: 'accessing'!
 22.1072 +
 22.1073 +color
 22.1074 +	^ player color
 22.1075 +!
 22.1076 +
 22.1077 +isHead
 22.1078 +	^ false
 22.1079 +!
 22.1080 +
 22.1081 +player
 22.1082 +	^ player
 22.1083 +!
 22.1084 +
 22.1085 +player: anObject
 22.1086 +	player := anObject
 22.1087 +!
 22.1088 +
 22.1089 +sprite
 22.1090 +	^ sprite
 22.1091 +!
 22.1092 +
 22.1093 +sprite: anObject
 22.1094 +	sprite := anObject
 22.1095 +! !
 22.1096 +
 22.1097 +TronSegment subclass: #TronHead
 22.1098 +	instanceVariableNames: 'direction'
 22.1099 +	package: 'Serpentron'!
 22.1100 +
 22.1101 +!TronHead methodsFor: 'accessing'!
 22.1102 +
 22.1103 +direction
 22.1104 +	^ direction
 22.1105 +!
 22.1106 +
 22.1107 +direction: anObject
 22.1108 +	direction := anObject
 22.1109 +!
 22.1110 +
 22.1111 +isHead
 22.1112 +	^ true
 22.1113 +! !
 22.1114 +
 22.1115 +Object subclass: #TronSkin
 22.1116 +	instanceVariableNames: 'skinMap skinImage tileSize maskOffset'
 22.1117 +	package: 'Serpentron'!
 22.1118 +
 22.1119 +!TronSkin methodsFor: 'accessing'!
 22.1120 +
 22.1121 +tileSize
 22.1122 +	^ tileSize
 22.1123 +! !
 22.1124 +
 22.1125 +!TronSkin methodsFor: 'drawing'!
 22.1126 +
 22.1127 +drawBackgroundOn: aContext at: aPoint
 22.1128 +	self drawTile: #background offset: aPoint - 1 on: aContext at: aPoint;
 22.1129 +		 drawTile: #backgroundTile on: aContext at: aPoint
 22.1130 +!
 22.1131 +
 22.1132 +drawBackgroundOn: aContext from: nwPoint to: sePoint
 22.1133 +	nwPoint y to: sePoint y do: [ :row |
 22.1134 +		nwPoint x to: sePoint x do: [ :col |
 22.1135 +			self drawBackgroundOn: aContext at: col @ row ]]
 22.1136 +!
 22.1137 +
 22.1138 +drawField: aField on: aContext at: aPoint
 22.1139 +	| x y segment |
 22.1140 +	
 22.1141 +	x := (aPoint - 1) x * tileSize.
 22.1142 +	y := (aPoint - 1) y * tileSize.
 22.1143 +	
 22.1144 +	aContext
 22.1145 +		clearRect: x and: y and: tileSize and: tileSize.
 22.1146 +	
 22.1147 +	segment := (aField at: aPoint) ifNil: [ ^ self ].
 22.1148 +	
 22.1149 +	self 
 22.1150 +		drawTile: segment sprite
 22.1151 +		offset: maskOffset
 22.1152 +		on: aContext
 22.1153 +		at: aPoint.
 22.1154 +	aContext
 22.1155 +		globalCompositeOperation: 'source-atop';
 22.1156 +		fillStyle: segment color;
 22.1157 +		fillRect: x and: y and: tileSize and: tileSize.
 22.1158 +	self drawTile: segment sprite on: aContext at: aPoint.
 22.1159 +	
 22.1160 +	aContext globalCompositeOperation: 'source-over'.
 22.1161 +!
 22.1162 +
 22.1163 +drawSkinImageOn: aContext source: sourcePoint destination: destinationPoint
 22.1164 +	aContext drawImage: skinImage
 22.1165 +		sx: sourcePoint x
 22.1166 +		sy: sourcePoint y
 22.1167 +		sw: tileSize
 22.1168 +		sh: tileSize
 22.1169 +		dx: destinationPoint x
 22.1170 +		dy: destinationPoint y
 22.1171 +		dw: tileSize
 22.1172 +		dh: tileSize
 22.1173 +!
 22.1174 +
 22.1175 +drawTile: aSymbol offset: offsetPoint on: aContext at: targetPoint
 22.1176 +	self 
 22.1177 +		drawSkinImageOn: aContext
 22.1178 +		source: ((skinMap at: aSymbol) + offsetPoint) * tileSize
 22.1179 +		destination: (targetPoint - 1) * tileSize
 22.1180 +!
 22.1181 +
 22.1182 +drawTile: aSymbol on: aContext at: aPoint
 22.1183 +	self drawTile: aSymbol offset: 0@0 on: aContext at: aPoint
 22.1184 +! !
 22.1185 +
 22.1186 +!TronSkin methodsFor: 'initialization'!
 22.1187 +
 22.1188 +initialize
 22.1189 +	super initialize.
 22.1190 +	skinMap := Dictionary new
 22.1191 +		at: #background put: 0@0;
 22.1192 +		at: #backgroundBottomRight put: 49@34;
 22.1193 +		at: #backgroundTile put: 0@35;
 22.1194 +		at: #headNorth put: 1@35;
 22.1195 +		at: #headEast put: 2@35;
 22.1196 +		at: #headSouth put: 3@35;
 22.1197 +		at: #headWest put: 4@35;
 22.1198 +		at: #bodyNorth put: 5@35;
 22.1199 +		at: #bodyEast put: 6@35;
 22.1200 +		at: #bodySouth put: 7@35;
 22.1201 +		at: #bodyWest put: 8@35;
 22.1202 +		at: #bodySouthToEast put: 9@35;
 22.1203 +		at: #bodyWestToNorth put: 9@35;
 22.1204 +		at: #bodyNorthToEast put: 10@35;
 22.1205 +		at: #bodyWestToSouth put: 10@35;
 22.1206 +		at: #bodyNorthToWest put: 11@35;
 22.1207 +		at: #bodyEastToSouth put: 11@35;
 22.1208 +		at: #bodySouthToWest put: 12@35;
 22.1209 +		at: #bodyEastToNorth put: 12@35;
 22.1210 +		yourself.
 22.1211 +	maskOffset := 12 @ 0.
 22.1212 +	skinImage := document createElement: 'img'
 22.1213 +! !
 22.1214 +
 22.1215 +!TronSkin methodsFor: 'loading'!
 22.1216 +
 22.1217 +load: url andDo: aBlock
 22.1218 +	skinImage onload: [
 22.1219 +		tileSize := skinImage width / 50.
 22.1220 +		aBlock value ].
 22.1221 +	skinImage src: url.
 22.1222 +! !
 22.1223 +
 22.1224 +!Point methodsFor: '*Serpentron'!
 22.1225 +
 22.1226 +rotate90ccw
 22.1227 +	^ self y @ self x negated
 22.1228 +!
 22.1229 +
 22.1230 +rotate90cw
 22.1231 +	^ self y negated @ self x
 22.1232 +! !
 22.1233 +

    23.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    23.2 +++ b/testing.js	Wed Feb 17 23:55:43 2016 +0300
    23.3 @@ -0,0 +1,9 @@
    23.4 +define([
    23.5 +    './deploy',
    23.6 +    'amber_core/SUnit',
    23.7 +    // --- packages used only during automated testing begin here ---
    23.8 +    'amber-serpentron/Serpentron-Tests'
    23.9 +    // --- packages used only during automated testing end here ---
   23.10 +], function (amber) {
   23.11 +    return amber;
   23.12 +});