emscripten:

    name: Emscripten

    runs-on: ubuntu-20.04

    container:

      # If you change this version, change the number in the cache step too.

      image: emscripten/emsdk:2.0.10

    steps:

    - name: Checkout

      uses: actions/checkout@v2

    - name: Setup cache

      uses: actions/cache@v2

      with:

        path: /emsdk/upstream/emscripten/cache

        key: 2.0.10-${{ runner.os }}

    - name: Build (host tools)

      run: |

        mkdir build-host

        cd build-host

        echo "::group::CMake"

        cmake .. -DOPTION_TOOLS_ONLY=ON

        echo "::endgroup::"

        echo "::group::Build"

        echo "Running on $(nproc) cores"

        make -j$(nproc) tools

        echo "::endgroup::"

    - name: Install GCC problem matcher

      uses: ammaraskar/gcc-problem-matcher@master

    - name: Build

      run: |

        mkdir build

        cd build

        echo "::group::CMake"

        emcmake cmake .. -DHOST_BINARY_DIR=../build-host

        echo "::endgroup::"

        echo "::group::Build"

        echo "Running on $(nproc) cores"

        emmake make -j$(nproc)

        echo "::endgroup::"

if (EMSCRIPTEN)

    set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/os/emscripten/cmake")

endif()

if(EMSCRIPTEN)

    add_library(WASM::WASM INTERFACE IMPORTED)

    # Allow heap-growth, and start with a bigger memory size.

    target_link_libraries(WASM::WASM INTERFACE "-s ALLOW_MEMORY_GROWTH=1")

    target_link_libraries(WASM::WASM INTERFACE "-s INITIAL_MEMORY=33554432")

    # Export functions to Javascript.

    target_link_libraries(WASM::WASM INTERFACE "-s EXPORTED_FUNCTIONS='[\"_main\", \"_em_openttd_add_server\"]' -s EXTRA_EXPORTED_RUNTIME_METHODS='[\"cwrap\"]'")

    # Preload all the files we generate during build.

    # As we do not compile with FreeType / FontConfig, we also have no way to

    # render several languages (like Chinese, ..), so where do you draw the

    # line what languages to include and which not? In the end, especially as

    # the more languages you add the slower downloading becomes, we decided to

    # only ship the English language.

    target_link_libraries(WASM::WASM INTERFACE "--preload-file ${CMAKE_BINARY_DIR}/baseset@/baseset")

    target_link_libraries(WASM::WASM INTERFACE "--preload-file ${CMAKE_BINARY_DIR}/lang/english.lng@/lang/english.lng")

    target_link_libraries(WASM::WASM INTERFACE "--preload-file ${CMAKE_SOURCE_DIR}/bin/ai@/ai")

    target_link_libraries(WASM::WASM INTERFACE "--preload-file ${CMAKE_SOURCE_DIR}/bin/game@/game")

    # We use IDBFS for persistent storage.

    target_link_libraries(WASM::WASM INTERFACE "-lidbfs.js")

    # Use custom pre-js and shell.html.

    target_link_libraries(WASM::WASM INTERFACE "--pre-js ${CMAKE_SOURCE_DIR}/os/emscripten/pre.js")

    target_link_libraries(WASM::WASM INTERFACE "--shell-file ${CMAKE_SOURCE_DIR}/os/emscripten/shell.html")

    # Build the .html (which builds the .js, .wasm, and .data too).

    set_target_properties(openttd PROPERTIES SUFFIX ".html")

    target_link_libraries(openttd WASM::WASM)

endif()

    if(EMSCRIPTEN)

        # Although pthreads is supported, it is not in a way yet that is

        # useful for us.

        option(OPTION_USE_THREADS "Use threads" OFF)

    else()

        option(OPTION_USE_THREADS "Use threads" ON)

    endif()

FROM emscripten/emsdk

COPY emsdk-liblzma.patch /

RUN cd /emsdk/upstream/emscripten && patch -p1 < /emsdk-liblzma.patch

## How to build with Emscripten

Building with Emscripten works with emsdk 2.0.10 and above.

Currently there is no LibLZMA support upstream; for this we suggest to apply

the provided patch in this folder to your emsdk installation.

For convenience, a Dockerfile is supplied that does this patches for you

against upstream emsdk docker. Best way to use it:

Build the docker image:

```

  docker build -t emsdk-lzma .

```

Build the host tools first:

```

  mkdir build-host

  docker run -it --rm -v $(pwd):$(pwd) -u $(id -u):$(id -g) --workdir $(pwd)/build-host emsdk-lzma cmake .. -DOPTION_TOOLS_ONLY=ON

  docker run -it --rm -v $(pwd):$(pwd) -u $(id -u):$(id -g) --workdir $(pwd)/build-host emsdk-lzma make -j5 tools

```

Next, build the game with emscripten:

```

  mkdir build

  docker run -it --rm -v $(pwd):$(pwd) -u $(id -u):$(id -g) --workdir $(pwd)/build emsdk-lzma emcmake cmake .. -DHOST_BINARY_DIR=$(pwd)/build-host -DCMAKE_BUILD_TYPE=RelWithDebInfo -DOPTION_USE_ASSERTS=OFF

  docker run -it --rm -v $(pwd):$(pwd) -u $(id -u):$(id -g) --workdir $(pwd)/build emsdk-lzma emmake make -j5

```

And now you have in your build folder files like "openttd.html".

To run it locally, you would have to start a local webserver, like:

```

  cd build

  python3 -m http.server

````

Now you can play the game via http://127.0.0.1:8000/openttd.html .

# LibLZMA is a recent addition to the emscripten SDK, so it is possible

# someone hasn't updated his SDK yet. Test out if the SDK supports LibLZMA.

include(CheckCXXSourceCompiles)

set(CMAKE_REQUIRED_FLAGS "-sUSE_LIBLZMA=1")

check_cxx_source_compiles("

    #include <lzma.h>

    int main() { return 0; }"

    LIBLZMA_FOUND

)

if (LIBLZMA_FOUND)

        add_library(LibLZMA::LibLZMA INTERFACE IMPORTED)

        set_target_properties(LibLZMA::LibLZMA PROPERTIES

                INTERFACE_COMPILE_OPTIONS "-sUSE_LIBLZMA=1"

                INTERFACE_LINK_LIBRARIES "-sUSE_LIBLZMA=1"

        )

else()

        message(WARNING "You are using an emscripten SDK without LibLZMA support. Many savegames won't be able to load in OpenTTD. Please apply 'emsdk-liblzma.patch' to your local emsdk installation.")

endif()

add_library(PNG::PNG INTERFACE IMPORTED)

set_target_properties(PNG::PNG PROPERTIES

        INTERFACE_COMPILE_OPTIONS "-sUSE_LIBPNG=1"

        INTERFACE_LINK_LIBRARIES "-sUSE_LIBPNG=1"

)

set(PNG_FOUND on)

add_library(SDL2::SDL2 INTERFACE IMPORTED)

set_target_properties(SDL2::SDL2 PROPERTIES

        INTERFACE_COMPILE_OPTIONS "-sUSE_SDL=2"

        INTERFACE_LINK_LIBRARIES "-sUSE_SDL=2"

)

set(SDL2_FOUND on)

add_library(ZLIB::ZLIB INTERFACE IMPORTED)

set_target_properties(ZLIB::ZLIB PROPERTIES

        INTERFACE_COMPILE_OPTIONS "-sUSE_ZLIB=1"

        INTERFACE_LINK_LIBRARIES "-sUSE_ZLIB=1"

)

set(ZLIB_FOUND on)

From 90dd4d4c6b1cedec338ff5b375fffca93700f7bc Mon Sep 17 00:00:00 2001

From: milek7 <me@milek7.pl>

Date: Tue, 8 Dec 2020 01:03:31 +0100

Subject: [PATCH] Add liblzma port

---

Source: https://github.com/emscripten-core/emscripten/pull/12990

Modifed by OpenTTD to have the bare minimum needed to work. Otherwise there

are constantly conflicts when trying to apply this patch to different versions

of emsdk.

diff --git a/embuilder.py b/embuilder.py

index 818262190ed..ab7d5adb7b2 100755

--- a/embuilder.py

+++ b/embuilder.py

@@ -60,6 +60,7 @@

     'harfbuzz',

     'icu',

     'libjpeg',

+    'liblzma',

     'libpng',

     'ogg',

     'regal',

@@ -197,6 +198,8 @@ def main():

       build_port('ogg', libname('libogg'))

     elif what == 'libjpeg':

       build_port('libjpeg', libname('libjpeg'))

+    elif what == 'liblzma':

+      build_port('liblzma', libname('liblzma'))

     elif what == 'libpng':

       build_port('libpng', libname('libpng'))

     elif what == 'sdl2':

diff --git a/src/settings.js b/src/settings.js

index 61cd98939ba..be6fcb678c6 100644

--- a/src/settings.js

+++ b/src/settings.js

@@ -1197,6 +1197,9 @@ var USE_BZIP2 = 0;

 // 1 = use libjpeg from emscripten-ports

 var USE_LIBJPEG = 0;

+// 1 = use liblzma from emscripten-ports

+var USE_LIBLZMA = 0;

+

 // 1 = use libpng from emscripten-ports

 var USE_LIBPNG = 0;

diff --git a/tools/ports/liblzma.py b/tools/ports/liblzma.py

new file mode 100644

index 00000000000..e9567ef36ff

--- /dev/null

+++ b/tools/ports/liblzma.py

@@ -0,0 +1,160 @@

+# Copyright 2020 The Emscripten Authors.  All rights reserved.

+# Emscripten is available under two separate licenses, the MIT license and the

+# University of Illinois/NCSA Open Source License.  Both these licenses can be

+# found in the LICENSE file.

+

+import os

+import shutil

+

+VERSION = '5.2.5'

+HASH = '7443674247deda2935220fbc4dfc7665e5bb5a260be8ad858c8bd7d7b9f0f868f04ea45e62eb17c0a5e6a2de7c7500ad2d201e2d668c48ca29bd9eea5a73a3ce'

+

+

+def needed(settings):

+  return settings.USE_LIBLZMA

+

+

+def get(ports, settings, shared):

+  libname = ports.get_lib_name('liblzma')

+  ports.fetch_project('liblzma', 'https://tukaani.org/xz/xz-' + VERSION + '.tar.gz', 'xz-' + VERSION, sha512hash=HASH)

+

+  def create():

+    ports.clear_project_build('liblzma')

+

+    source_path = os.path.join(ports.get_dir(), 'liblzma', 'xz-' + VERSION)

+    dest_path = os.path.join(ports.get_build_dir(), 'liblzma')

+

+    shared.try_delete(dest_path)

+    os.makedirs(dest_path)

+    shutil.rmtree(dest_path, ignore_errors=True)

+    shutil.copytree(source_path, dest_path)

+

+    build_flags = ['-DHAVE_CONFIG_H', '-DTUKLIB_SYMBOL_PREFIX=lzma_', '-fvisibility=hidden']

+    exclude_dirs = ['xzdec', 'xz', 'lzmainfo']

+    exclude_files = ['crc32_small.c', 'crc64_small.c', 'crc32_tablegen.c', 'crc64_tablegen.c', 'price_tablegen.c', 'fastpos_tablegen.c'

+                     'tuklib_exit.c', 'tuklib_mbstr_fw.c', 'tuklib_mbstr_width.c', 'tuklib_open_stdxxx.c', 'tuklib_progname.c']

+    include_dirs_rel = ['../common', 'api', 'common', 'check', 'lz', 'rangecoder', 'lzma', 'delta', 'simple']

+

+    open(os.path.join(dest_path, 'src', 'config.h'), 'w').write(config_h)

+

+    final = os.path.join(dest_path, libname)

+    include_dirs = [os.path.join(dest_path, 'src', 'liblzma', p) for p in include_dirs_rel]

+    ports.build_port(os.path.join(dest_path, 'src'), final, flags=build_flags, exclude_dirs=exclude_dirs, exclude_files=exclude_files, includes=include_dirs)

+

+    ports.install_headers(os.path.join(dest_path, 'src', 'liblzma', 'api'), 'lzma.h')

+    ports.install_headers(os.path.join(dest_path, 'src', 'liblzma', 'api', 'lzma'), '*.h', 'lzma')

+

+    return final

+

+  return [shared.Cache.get(libname, create, what='port')]

+

+

+def clear(ports, settings, shared):

+  shared.Cache.erase_file(ports.get_lib_name('liblzma'))

+

+

+def process_args(ports):

+  return []

+

+

+def show():

+  return 'liblzma (USE_LIBLZMA=1; public domain)'

+

+

+config_h = r'''

+#define ASSUME_RAM 128

+#define ENABLE_NLS 1

+#define HAVE_CHECK_CRC32 1

+#define HAVE_CHECK_CRC64 1

+#define HAVE_CHECK_SHA256 1

+#define HAVE_CLOCK_GETTIME 1

+#define HAVE_DCGETTEXT 1

+#define HAVE_DECL_CLOCK_MONOTONIC 1

+#define HAVE_DECL_PROGRAM_INVOCATION_NAME 1

+#define HAVE_DECODERS 1

+#define HAVE_DECODER_ARM 1

+#define HAVE_DECODER_ARMTHUMB 1

+#define HAVE_DECODER_DELTA 1

+#define HAVE_DECODER_IA64 1

+#define HAVE_DECODER_LZMA1 1

+#define HAVE_DECODER_LZMA2 1

+#define HAVE_DECODER_POWERPC 1

+#define HAVE_DECODER_SPARC 1

+#define HAVE_DECODER_X86 1

+#define HAVE_DLFCN_H 1

+#define HAVE_ENCODERS 1

+#define HAVE_ENCODER_ARM 1

+#define HAVE_ENCODER_ARMTHUMB 1

+#define HAVE_ENCODER_DELTA 1

+#define HAVE_ENCODER_IA64 1

+#define HAVE_ENCODER_LZMA1 1

+#define HAVE_ENCODER_LZMA2 1

+#define HAVE_ENCODER_POWERPC 1

+#define HAVE_ENCODER_SPARC 1

+#define HAVE_ENCODER_X86 1

+#define HAVE_FCNTL_H 1

+#define HAVE_FUTIMENS 1

+#define HAVE_GETOPT_H 1

+#define HAVE_GETOPT_LONG 1

+#define HAVE_GETTEXT 1

+#define HAVE_IMMINTRIN_H 1

+#define HAVE_INTTYPES_H 1

+#define HAVE_LIMITS_H 1

+#define HAVE_MBRTOWC 1

+#define HAVE_MEMORY_H 1

+#define HAVE_MF_BT2 1

+#define HAVE_MF_BT3 1

+#define HAVE_MF_BT4 1

+#define HAVE_MF_HC3 1

+#define HAVE_MF_HC4 1

+#define HAVE_OPTRESET 1

+#define HAVE_POSIX_FADVISE 1

+#define HAVE_PTHREAD_CONDATTR_SETCLOCK 1

+#define HAVE_PTHREAD_PRIO_INHERIT 1

+#define HAVE_STDBOOL_H 1

+#define HAVE_STDINT_H 1

+#define HAVE_STDLIB_H 1

+#define HAVE_STRINGS_H 1

+#define HAVE_STRING_H 1

+#define HAVE_STRUCT_STAT_ST_ATIM_TV_NSEC 1

+#define HAVE_SYS_PARAM_H 1

+#define HAVE_SYS_STAT_H 1

+#define HAVE_SYS_TIME_H 1

+#define HAVE_SYS_TYPES_H 1

+#define HAVE_UINTPTR_T 1

+#define HAVE_UNISTD_H 1

+#define HAVE_VISIBILITY 1

+#define HAVE_WCWIDTH 1

+#define HAVE__BOOL 1

+#define HAVE___BUILTIN_ASSUME_ALIGNED 1

+#define HAVE___BUILTIN_BSWAPXX 1

+#define MYTHREAD_POSIX 1

+#define NDEBUG 1

+#define PACKAGE "xz"

+#define PACKAGE_BUGREPORT "lasse.collin@tukaani.org"

+#define PACKAGE_NAME "XZ Utils"

+#define PACKAGE_STRING "XZ Utils 5.2.5"

+#define PACKAGE_TARNAME "xz"

+#define PACKAGE_VERSION "5.2.5"

+#define SIZEOF_SIZE_T 4

+#define STDC_HEADERS 1

+#define TUKLIB_CPUCORES_SYSCONF 1

+#define TUKLIB_FAST_UNALIGNED_ACCESS 1

+#define TUKLIB_PHYSMEM_SYSCONF 1

+#ifndef _ALL_SOURCE

+# define _ALL_SOURCE 1

+#endif

+#ifndef _GNU_SOURCE

+# define _GNU_SOURCE 1

+#endif

+#ifndef _POSIX_PTHREAD_SEMANTICS

+# define _POSIX_PTHREAD_SEMANTICS 1

+#endif

+#ifndef _TANDEM_SOURCE

+# define _TANDEM_SOURCE 1

+#endif

+#ifndef __EXTENSIONS__

+# define __EXTENSIONS__ 1

+#endif

+#define VERSION "5.2.5"

+'''

Module.arguments.push('-mnull', '-snull', '-vsdl:relative_mode');

Module['websocket'] = { url: function(host, port, proto) {

    /* openttd.org hosts a WebSocket proxy for the content service. */

    if (host == "content.openttd.org" && port == 3978 && proto == "tcp") {

        return "wss://content.openttd.org/";

    }

    /* Everything else just tries to make a default WebSocket connection.

     * If you run your own server you can setup your own WebSocket proxy in

     * front of it and let people connect to your server via the proxy. You

     * are best to add another "if" statement as above for this. */

    return null;

} };

Module.preRun.push(function() {

    personal_dir = '/home/web_user/.openttd';

    content_download_dir = personal_dir + '/content_download'

    /* Because of the "-c" above, all user-data is stored in /user_data. */

    FS.mkdir(personal_dir);

    FS.mount(IDBFS, {}, personal_dir);

    Module.addRunDependency('syncfs');

    FS.syncfs(true, function (err) {

        /* FS.mkdir() tends to fail if parent folders do not exist. */

        if (!FS.analyzePath(content_download_dir).exists) {

            FS.mkdir(content_download_dir);

        }

        if (!FS.analyzePath(content_download_dir + '/baseset').exists) {

            FS.mkdir(content_download_dir + '/baseset');

        }

        /* Check if the OpenGFX baseset is already downloaded. */

        if (!FS.analyzePath(content_download_dir + '/baseset/opengfx-0.6.0.tar').exists) {

            window.openttd_downloaded_opengfx = true;

            FS.createPreloadedFile(content_download_dir + '/baseset', 'opengfx-0.6.0.tar', 'https://installer.cdn.openttd.org/emscripten/opengfx-0.6.0.tar', true, true);

        } else {

            /* Fake dependency increase, so the counter is stable. */

            Module.addRunDependency('opengfx');

            Module.removeRunDependency('opengfx');

        }

        Module.removeRunDependency('syncfs');

    });

    window.openttd_syncfs_shown_warning = false;

    window.openttd_syncfs = function() {

        /* Copy the virtual FS to the persistent storage. */

        FS.syncfs(false, function (err) { });

        /* On first time, warn the user about the volatile behaviour of

         * persistent storage. */

        if (!window.openttd_syncfs_shown_warning) {

            window.openttd_syncfs_shown_warning = true;

            Module.onWarningFs();

        }

    }

    window.openttd_exit = function() {

        Module.onExit();

    }

    window.openttd_abort = function() {

        Module.onAbort();

    }

    window.openttd_server_list = function() {

        add_server = Module.cwrap("em_openttd_add_server", null, ["string", "number"]);

        /* Add servers that support WebSocket here. Example:

         *  add_server("localhost", 3979); */

    }

    /* https://github.com/emscripten-core/emscripten/pull/12995 implements this

    * properly. Till that time, we use a polyfill. */

   SOCKFS.websocket_sock_ops.createPeer_ = SOCKFS.websocket_sock_ops.createPeer;

   SOCKFS.websocket_sock_ops.createPeer = function(sock, addr, port)

   {

       let func = Module['websocket']['url'];

       Module['websocket']['url'] = func(addr, port, (sock.type == 2) ? 'udp' : 'tcp');

       let ret = SOCKFS.websocket_sock_ops.createPeer_(sock, addr, port);

       Module['websocket']['url'] = func;

       return ret;

   }

});

Module.postRun.push(function() {

    /* Check if we downloaded OpenGFX; if so, sync the virtual FS back to the

     * IDBFS so OpenGFX is stored persistent. */

    if (window['openttd_downloaded_opengfx']) {

        FS.syncfs(false, function (err) { });

    }

});

<!doctype html>

<html lang="en-us">

  <head>

    <meta charset="utf-8">

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">

    <title>OpenTTD</title>

    <style>

      body {

        font-family: Tahoma, Arial, Helvetica, sans-serif;

        font-size: 14px;

        margin: 0;

        padding: 0;

      }

      div.background {

        background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEEAAAAhCAIAAAAJYVFIAAASn0lEQVRYw02Xx45lR4JYw0dcf+/zL01ZkkWiOTJQYzYCJAGj/98IkIZsNlnMrHTPXG/ChxbczPmDsznAgT//7w9P9uHH/d+k+DXWP7zIX31wyXSkhxPAzr4c86Ji+wdX307kj3bQO/q9Fg/d9SYunzN3L+m3bpJr/JmhCK+/dY8ipLXvCpT3MbxZmhDKF9/n+VHWzQqxSwY3ltTErojPcPnqZYrE6GW6uKZXXRrupB/jaordcbFDpxpCQAZvRik9q+lSLsYaOnJVlGsk8bCcE6Yz/P2/vtulh6Eeete7jsbrUUQhTFlK7ixpUdYxvxrtBduyntot+3zRD2l4J8G3HN5r/s2cCw10TArFH+C8tyNKt9rNPDBJYRays23TGfW6iVnSgDFxtOFhy4vxOoZFj91IMbckcKK3mCmKOGaamJUOo+qBUTjGW0ilXzwGBHhkvc/5Os6BnJy/rB2WLMP4/b/syf4Pw69SBaqzMOSDG9fpLT88zo+rBN2/6X/m4eNZfWXTyudPpF+77Fk54zoKozks0fbeE58b2MsaTOTC3RGktW2z1lwgX6TZRJnSpANdmUbrdGObgS5mNJpjokR6YXqDTI7L1171KnR+iHkqOc4D1THP4txSGIkcCpqKDB7WK2V0X6thMibo7Y4kCcfFMdakti83hkzRtg9TynTeoD8j9bGF3xJS4qRhvsJxm/K98HtfPA3N/eHGuokPZla070ctQNXLgRRdRd9b9srsAaQNmjPMHJEY86Uk9wvqbfSC5S6BOWQdnAOmKgI3FvUAAmUX30dKQpT1tkuwkH4h7TACF3u0eM1ULWbTDJ06X+dbNd6Ujn9wDFbzKcK3/2O2z0dyfF3jL9ep2X1S6WH55z/kZTn9zxH/Qc+h2Se3Z/lcRcfLDJ/N64avXnb0y9k806nkqrJkuamOUHTdqAWokkqXYqN838sMc5mJ1aAkATGN59gfic9w9aJqJvA63VgUuA0SBe6hcgrxyMI5i/CGgopVM7aEmIKjUg+gD29eEyTT9Y3nn4HBe9jfBRP5+Io32ztyfEn0j/111KS3LztDutzcfPwJPE6bt2mIYVrLXpL+VvwNLbsafMvhB599i+1NyE+wqLX1rGjpchfaLN5fwLQz/BXJLRbnSc48VDSede8DlhSmtXrF0RyRNS0bL7PF1aqluiWBTcESSGywxPO6C09hKZXXz9OjHDRymGUyy5IkWlk0XbshkHldxg4NYyfx9nOJs2E50yl+uX9PdR2n5N5XD8qolN5s02NHHsW8aeZR4Izuvo3zYltqUE980Uw9qNdr8W5+E3Ov0eaN6KPEL2DeQhtb3ObwjoKkXdogCZhyF53REvtgUEiUnYDjHsrJJDgfwMKQkBFdoUhxVPQdQIDGqY18nIttfrcImiJdofxCIceAEZ/asWjnTkmPf/jX95Zeqzudmu/DuLHl1/mCfZ8NbkrwCkE8uqumfekPdvHLRWhz4LuXUK/ifZ2C+5CdDH8dVcXWp0kpAapAxlqeKEhsExvxQpDAYp5Rm8YrxKWgxaQ0BhEkEgUxLJLElwztso1jsNRgID7t5WhQhzQFSKeHxakQgOkVnXxteivNzIjwwMLim4WSghxv/t6YpwNzNzP/hfrVZboq2otNH8WB+83Mf2PCrOAPcZQl799ad3XoqrXTZLoRP3lD5guJwQ3JnyCRevwwutcMHAt8y9fnLpxify9WrbxEqK9CchJha0gt3cBh+ZcDYdJ3qUM9tDkyea/6pbN4SQJ0SZJl+KitwkiMiyOBrCokeMTcgSbz5Ot5tjHYEeLxdz/+yxX9kdJ1sh7DUlbHabh8wG0S+ryGD0v/XpqxOPRQ5e0j2dzZInzM0fGtrSlIpm4e2HN2bPRb1UvtXZYWUxDnpQlIbRc3e3Eiy7F3bX7X+65ALvNsSOFx1DX1VaAt8eUSlqhSp7YZG+OhTpP8hngDR0AShqJBDShtPZJ9H2mvHTnBgJHccLcx1nuLYrDD67/XXHhmt6M9Ubd+qt8O0SasHlDRahMCbpJ5z90NBMSVf87fSh0/yRrsi1s1qDiLJejMWznRxiOdlS2sV5CaRGyNeAJDkoJ3fHP1fWScjlhlxNtG3GGXBd5QGHkkURBNN3fTkph14IpYka6kjZJTb+Vg41VvyQCnHRm2NGpSliDAYcAW9wFJYz0ECLIB7/8zds/HGv5ZgS9s99Bd3qWM1fOlDD/APo5W4wT7mFRS/NO8rdDm4i8btLmoDnoLXfF4eY5d3EFionlX7WBE1+0yMZAGMoK0ozAD81pPAYiRwrSfZ5BcoGPdOBt69l3qcOfZLOSa55IXM9SRDRoBESU2TRPTZK6N49UkxQm7dQTWDo8w4AA9BCjNkApw1hb/9L8SFg452b2oX5rTu2PGF/Hvi7Ip3vjqwb5tNV5SsnKk9VME4znle3NN4Pr0Ol+N8xUqA5PpN49wIrvkoXvcxLfprpGnWNh7gsTC/gjZGRJLXSntTPWO+HRxne+zZhnSzq3ZuwCEHfmsbSxyItzSW2q2QXSEI5LP0MexfTe7xmfPCS6NVwhQD6yzKHabtNC4/NGfrxUsfhGRX9P9wn9pz5+yqhdhZXCDso60B599i+yn9L6Wz1V0uHBSqUsMxJKo7erTBLtyLHRRbid6Snw5gzMx+xHU0e6KfWzAaC8lxN7yi7La9lRPFinRmGZb7BGp0LYBxdlpbIPlNErzMKMWBC61AZ5GYUezEWILsDEdlWaeQ9ctI/V5mgGpu2la8Oeffsblr4n6ch2bFK+v8zXgywr8sPDf7pq4rzdo/2bPW06T2Z9juofLZqa/D+CaZB7JVF6SkZ09Mvlugm2Fy4YsJccpXLiBo6ZnYe5A2iWVfXmxuN+wEAEA8vd9upZxNVuJmmGxbZqyzerGUcxnNbs+inJt8GBRRxAhLACPsdpGKxU0Wkac8xUT1lkEUSCUY3K/3t7MYK5Qcl3ORJMxmY++eEjM99f0lPA9d/sGPcakaOY2QqUUvwv9bjFTDj4O8Fykq5IdyJ+DYSqK9r2cgWIhffUa+T73fa4nH6HNw2sPkNkUO0nbmV6YOwhzp+zc+6agR15ITDDhdmqN9TKOcmJ2cRakrBDXdvCTHEz8BGQ+awfjDmk8ThZBRojvF4A//Pd2+mObvHs5PX0Qu8c1/uLLx8R8DwOJV2OQBdk8JPa9ZF8XrRO8buYu3XWZfy/ZozQSRDUDeZsMKLa6oTrMmvVoWJV3ciJ1UAwF8jQ/7LNjVjoGYmkXG3SYiOOnwCY8rDko4kqhIGY1Db4WYR/oWC9GGpkSBoDqXc3ANvXvaTYB44PFwCPKgoiY6zKIO7zZ3U/xi3nZxrsH93pwxZ+J+Z5uH5/eYgcv1yZLignInJodjlvqSxx3ZHy30AdzKjXQJfyk2TfY54ibIIVBcivek7KZTzEaKiWaPC932Y2eTK97M0Keyii1UMUROEJiQNJSHCu7AMfGRcVwK/2IXRrAwkEC6fzXRTAqAm+8pm7MeKYxws47QhkSi9UBJ19u83Uzhh7Xx7Kqks30/Jo6dNFTyeJWpFc6foSe4u2fl1oGcXWnbXy8MnnvslOJ3/HNmaqb+NAzcxsfhtv802l61nV8kQ2BZH8PKExxcXbJm7IG6xhM+ax1Eq/iTataxuRd767E5ZPp/YSRGKCmgA4KDXYkAGngcFGhOBLWGzmayQ0IJJh5p8Mwasta53N89zHG6bCGPzXoAaZvZPguY9SSCx4oTqbE/DCz34nPZ3tFzXYykq97+bQW+4t8LWv7wvWNpN/QfBivRsKmfXWnvv9Pao4OPn1v0XwznJ0Eta1L4zyteuQYkfkULsiUCxgxJiz6a99UHKUROIK4m2Sa54IDNM52wf2oJLSp1taKpozWiGoEKGYQ+oA9w96jYl10PQwAFAVI9U8wYLL7w73t8qIqywgiCP4DWQ7C6ZBmVWg+lh+m3K+Rp7H+bqrtwF70pQyaff99NPw3hvgncPkh6Ahvz77PUTrusoNb0vi23/x8mfTy68vv96cBjY/jmUDWh5lBOuj8/6kORbQrSREIQp6l4x01SRrxqqTeA6VAFNFVmUSCKsQNYiIR+N3Pe5xelhNF6cj85kX9kuaAgyPdPdr6biL/NK8bNTqQDGGOYTyHObb5t1q9Mnnfg9O37gnMCAYkqimLt3GUyVCfr4soplW8HuGDPEco72N0XFqwhN5cM+N05Iv7d7zHxfNocKCz1hPs1uI+Mve9axgscLwwKLDQoDxZaFA0sVDAbsuygUBhvAKBYGhkuEKT4vc/H8/jmeo0DLkrv+LmYGlP3Xq0J2org5tRbvjuOVw2aHNJ3KdQvMb2w1vdZ7xkWZ/IbZGvs/dXZm6hE3j9jag9ZpIsRz2z61QHRXGk1AAnVG9uPNYR9wdUtAoMHK038Y1mHVJsnjwEjJetDJ1qsfELBHxajG6jAt6HIR+vNqRXihPjlbcYqZVDo8B5DLb4/ucdTi9D6DfZraV1xm+vc5OglSU1davr1KTlJbXfpfc1W94v9KvQ70/yATMDRgqjubiV0wXSVJ3ryPKH5SXW/E34G03eaHVelM74DnKZ7ucc36LpYOOLHLVt0lkbihKK+OJ7idsEFEiypSFy3pJyRIqwWGcix0Kb+Gm2HCSLRT00GSauM2fvEJwyHVrIDf78b8v0x5aqwlVfE/NlZr9K5VK8+csBxY1727v0G57eQc+u89V0mKrMkqXKdlE4zLaJ6ObcdyXN87XhuGJuT6u3Zpy0tgX4YNlJX2Oy3Cr2ggLu52WGLa36KLMcFpq8IdGX+D7l2+Smm+lZgatxSkFZiRvuq7mBRG94OkLe2GU/acUAr/CHqJgX9gJNmWYI3378coVfD9+p+c8dZ5GhlxX88qZ+K8J3C/891p9a+LTe4X98ew0jsmReZftbOHZwEaTCkNRznWzbWZp+zD1sDTlhn4J5HYPtICcKEuF3A7xQwtLCQh9nlTVy6+sK9GnvLuNSSgmiqqVIjC8iyVwVHXJwP0zSGmhmN4Q3truCORpapB2LYkeSsxxVmFbGAUNP2CX4878t7mVrSJfx21n8cif+q1YBxhfmVwY31FXP9WVeTGlvVHwVcpPeXiXcPzUtmFFye571wuePsE9F9ZKAuwAV9qmijyiwxU4cJYY/YTHxUC5ugFZcujHBMatqUFxMsB4MQmeRuUUgcunr0mIderksBd0hhwkhnilZM2mVoVOUTlSJYEkUJ4HPTplYv4tKg+zbJxDQX+nsetCy/+Oh7Xsw0H83r5uJ/JYVPl2OdHfJVxYj0A/KuXB7i9e7fPi6ZvUtXb0u+SO399hH/zHEhwMbbFA2uPP2NLxCuWHFANEKuHQaAZ7epdPHgkcuuxoyS/qoOoyE9FIgIWU4a6klfep709vF0ImrMidluUp94EoCAAAqOpgNfljj9d9rmHcABua2o70m8jsI8OguuN6/6uebmuX590Z5PySjnav0EFi/XFCMbpR4iFkVyle83KTgeDUPYnPh+k7iF2YPmryBeZOiNKlmTooU71vzfL3mJclA8rC4gYMC5Y0dhDGA0xgS5RSCxMZRHobCi74Bp0nrFKWUBF4bJoVW6UtTUxytttBKh4c7jnNN3vDxv2D7dETpZOhZquA7pmZFdfpqn77b/jh5Hr17sfHVT7HBc0KruFoa0whUdnMvUC78jqxegBWQ9/Kl0PxtkLJXTRruxKoda7W4oR4iy15YMlW0cuK17wrGfYQjjyRIWrwUgPYcVdnG24mRaBEpd13mgxUhq7aBIb5gyNeZ5xIH5IAKlhkfQPkqOLbO4c8//s2vvhYl++03Veo7BBAAYPVjHacuXg+yEeepg9ddUayquxmpfLRXVG+Sm+soZeA1CzmO5qASarbJTaMumbJ6I9578QbmjY8bEQ40vsZhO06WgHiSiwaXHB0DbVeTc/XaZaOXEXGFhj3FMTF7Cc8DeqGxYT5SdTr5wdApqSS1HBJDIWGuQpZbqzW9YJ/h4hBl9O7//v6cZmiX3zXkT8W6WH3m9jDay+C7A/8BVM80FDgeu+cQxJjyPVw2xU6259t4cx4fY8VeDX9B023vryKTrieDkhxngUx1L9LCUBBDNuk+KCe5LpFoOVhPXKMoicJxAi3GeNEKeu74hfjUGszD2kLDYlKJG36yVk80KbWFWgbAew/lX39iRox3n8rfh3982f+Npg3z69FeAwihp674EyCL66PgcbKegMxHc+l9V4LPij9cOmFBW5FS+qb3bQY+RO6Wrt58m0CqgxI8Uxxn+hrT/FVfYlb0fb8GcV+JHclGDjbE5zxfUOA4rSNcONwtvmMgX7TGWVOwtUfT7JtAB4LIxK1NFj8TqY1mPZBRViBf1EoF7Pj/BxpbA439ytNwAAAAAElFTkSuQmCC");

        border: 0px none;

        display: flex;

        height: 100%;

        position: absolute;

        width: 100%;

        z-index: 1;

      }

      div.overlay {

        height: 40px;

        margin: 0 auto;

        opacity: 0;

        pointer-events: none;

        position: absolute;

        text-align: center;

        transition: opacity 0.3s;

        width: 100%;

        z-index: 3;

      }

      div.overlay > div {

        pointer-events: none;

      }

      div.background > div, div.overlay > div {

        margin: auto;

      }

      #filesystem {

        background-color: #e00000;

        border: 1px solid #fc6458;

        color: #fcf880;

        display: none;

        outline: #a00000;

        padding: 0 4px;

        width: 600px;

      }

      #title, #message {

        background-color: #838383;

        border: 1px solid #a8a8a8;

        outline: 1px solid #626262;

        padding: 0 4px;

        min-width: 260px;

      }

      #box.error #title, #box.error #message {

        background-color: #e00000;

        border: 1px solid #fc6458;

        outline: #a00000;

      }

      #box.error #message {

        color: #fcf880;

      }

      #title {

        color: #fcfcfc;

        height: 20px;

        text-shadow: 1px 1px #101010;

      }

      #message {

        color: #101010;

        height: 54px;

        padding: 4px 4px;

      }

      canvas.emscripten {

        border: 0px none;

        height: 100%;

        position: absolute;

        width: 100%;

        z-index: 2;

      }

    </style>

  </head>

  <body>

    <div class="background">

      <div id="box">

        <div id="title">

          Loading ...

        </div>

        <div id="message">

        </div>

      </div>

    </div>

    <div class="overlay" id="overlay">

      <div id="filesystem">

        Warning: savegames are stored in the Indexed DB of your browser.<br/>Your browser can delete savegames without notice!

      </div>

    </div>

    <div>

      <canvas class="emscripten" id="canvas" oncontextmenu="event.preventDefault()" tabindex=-1></canvas>

    </div>

    <script type='text/javascript'>

      var statusElement = document.getElementById('status');

      var progressElement = document.getElementById('progress');

      var spinnerElement = document.getElementById('spinner');

      var Module = {

        preRun: [],

        postRun: [],

        arguments: [],

        totalDependencies: 42,

        doneDependencies: 0,

        lastDependencies: 1,

        print: function(text) {

            if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');

            console.log(text);

        },

        printErr: function(text) {

            if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');

            console.error(text);

        },

        canvas: (function() {

          var canvas = document.getElementById('canvas');

          // As a default initial behavior, pop up an alert when webgl context is lost. To make your

          // application robust, you may want to override this behavior before shipping!

          // See http://www.khronos.org/registry/webgl/specs/latest/1.0/#5.15.2

          canvas.addEventListener("webglcontextlost", function(e) { alert('WebGL context lost. You will need to reload the page.'); e.preventDefault(); }, false);

          return canvas;

        })(),

        setStatus: function(text) {

          var m = text.match(/^([^(]+)\((\d+(\.\d+)?)\/(\d+)\)$/);

          if (m) {

            text = "(" + m[2] + " / " + m[4] + ") " + m[1];

          }

          document.getElementById("message").innerHTML = text;

        },

        monitorRunDependencies: function(left) {

          /* If it goes up, a new dependency was added; down means one is

           * removed. We only track the latter. */

          if (left < Module.lastDependencies) {

            Module.doneDependencies += 1;

          }

          Module.lastDependencies = left;

          total = Module.totalDependencies;

          doing = Module.doneDependencies + 1;

          if (doing > total) {

            doing = total;

          }

          document.getElementById("title").innerHTML = "(" + doing + " / " + total + ") Loading ...";

          document.getElementById("message").innerHTML = "Preparing game ...";

        },

        onExit: function() {

          document.getElementById("canvas").style.display = "none";

          document.getElementById("title").innerHTML = "Thank you for playing!";

          document.getElementById("message").innerHTML = "We hope you enjoyed OpenTTD!<br/><br/>Reload your browser to restart the game.";

        },

        onAbort: function() {

          document.getElementById("canvas").style.display = "none";

          document.getElementById("box").className = "error";

          document.getElementById("title").innerHTML = "Crash :(";

          document.getElementById("message").innerHTML = "The game crashed!<br/><br/>Please reload your browser to restart the game.";

        },

        onWarningFs: function() {

          document.getElementById("filesystem").style.display = "inline-block";

          document.getElementById("overlay").style.opacity = 1;

          setTimeout(function() {

            document.getElementById("overlay").style.opacity = 0;

            setTimeout(function() {

              document.getElementById("filesystem").style.display = "none";

            }, 300);

          }, 10000);

        }

      };

      window.onerror = function() {

        Module.onAbort();

      };

    </script>

    {{{ SCRIPT }}}

  </body>

</html>

static const int MAX_FONT_SIZE = 72; ///< Maximum font size.

#if defined(__EMSCRIPTEN__)

		uint8 r, g, b, a;  ///< colour channels as used in browsers

#elif TTD_ENDIAN == TTD_BIG_ENDIAN

#if defined(__EMSCRIPTEN__)

		r(r), g(g), b(b), a(a)

#elif TTD_ENDIAN == TTD_BIG_ENDIAN

#ifdef __EMSCRIPTEN__

#	include <emscripten.h>

#endif

#ifdef __EMSCRIPTEN__

	EM_ASM(if (window["openttd_syncfs"]) openttd_syncfs());

#endif

	int err = connect(sock, runp->ai_addr, (int)runp->ai_addrlen);

#ifdef __EMSCRIPTEN__

	/* Emscripten is asynchronous, and as such a connect() is still in

	 * progress by the time the call returns. */

	if (err != 0 && errno != EINPROGRESS)

#else

	if (err != 0)

#endif

	{