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https://github.com/orx/orx

ORX: Portable Game Engine
https://github.com/orx/orx
Last synced: 7 days ago
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ORX: Portable Game Engine
Host: GitHub
URL: https://github.com/orx/orx
Owner: orx
License: zlib
Created: 2015-07-26T05:15:23.000Z (over 9 years ago)
Default Branch: master
Last Pushed: 2024-11-25T05:42:13.000Z (17 days ago)
Last Synced: 2024-11-25T06:26:21.814Z (17 days ago)
Language: C
Homepage: http://orx-project.org
Size: 94.9 MB
Stars: 1,462
Watchers: 56
Forks: 100
Open Issues: 2
Metadata Files:
- Readme: README.html
- Changelog: CHANGELOG
- License: LICENSE
- Authors: AUTHORS
Awesome Lists containing this project

awesome-game-engine-dev - ORX - 2.5D data-driven game development framework. (Libraries / C++)
README

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README


    

    


    A (HEAVILY) DATA-DRIVEN 2D GAME ENGINE





    

    

    

    

    





    

    

    





    

    

    

    





    

    

    





Orx (Version 1.15)





This engine is licensed under the very permissive zlib license (i.e. it's free for any commercial or non-commercial use),

see the LICENSE file for details.

Email iarwain [at] orx-project.org to contact the author or come chat with us on Discord if you have any questions, feedback or comments.



Summary





Orx is a heavily data-driven, 2D-oriented, portable game engine, focused primarily on ease of use and powerful features.

(See below for a list of supported platforms.)

This is a release candidate for orx v1.15. If you find any bugs,

please report them on the forum, in the "Bug report - Feature request" board,

or via orx's issue page/tracker.

Some notable features of the engine are:



powerful config system that makes orx data-driven and provides an easy to use load/save system

hardware-accelerated rendering that provides: translation, anisotropic scale, rotation,

transparency (alpha blending), different blending modes, coloring, tiling and mirroring

advanced rendering features such as MRT (Multiple Render Targets), offscreen rendering, flexible pipeline & easy compositing

advanced resource management allowing for easy multi-platform data support and patching

automatic hotloading of resources upon modification on disk drastically shortens iteration times

timelines and commands modules allow for config-driven scripting-like features

interactive console can execute commands at runtime (very useful for tweaking/debugging purposes)

advanced animation engine (including a chaining graph & custom animation events for synchronization)

fragment (pixel) shader support

visual FXs based on curve combinations

integrated runtime profiler (with graphical display) to easily spot which parts of your game need to be optimized

collision handling and rigid body physics

camera/viewport scheme allowing multiple views displayed with camera translation, zoom and rotation

generic input system that abstracts keyboard, mouse, joystick, touch and accelerometer inputs

powerful localization module (for localized texts, audio, graphics, etc.)

spawners (provides an easy way to create particles or projectiles)

3D positioning using "scene nodes"

custom bitmap font support

automatic differential scrolling and depth scaling upon request

fully featured and extensible sound system (WAV/MP3/OGG/QOA support, streams, hierarchical buses, filters, spatialization, etc.)

clock system that provides time consistency and allows time stretching + high precision timers

event manager

unicode support with UTF-8 encoding

plugin system

screenshot capture tool (supports bmp, png, jpg, qoi, tga and dds)





Getting Started





Check orx's wiki for detailed information, including:



initial setup

beginner's guide

tools

samples

detailed tutorials (both official and community-made ones)



Check the doc/html directory for orx's API doxygen documentation.



Supported Platforms





The engine compiles for, and is tested on:



Linux (x86/x86-64 with codelite, codeblocks and GNU makefile)

Windows (x86/x86-64 with vs2017, vs2019 & vs2022, x86/x86-64 mingw-w64 (14.2.0) with codelite, codeblocks and GNU makefile)

MacOS X (x86/x86-64 with xcode or x86/x86-64 with codelite, codeblocks and GNU makefile), version 10.6+

Android (Gradle build files, simulator & device)

iOS (iPhone/iPod Touch/iPad, simulator & device with xcode)





Versions





Those are not revision versions but link/run versions.

Orx library can be compiled as a static or a dynamic library.

In addition to these modes, orx can be compiled as an embedded version or not.

Orx's core is basically platform-independent. All the platform/OS-dependent features

are implemented via plugins. These plugins can be loaded at runtime (hotplug) or

they can be embedded at linktime.

If you use the non-embedded versions, you'll have to specify which plugins to use.

This is more flexible but also requires additional files (the plugins themselves).

The embedded version will store everything in orx's library, meaning you won't be able

to choose which plugin to use at runtime, but will also be more compact. This will

also make orx run considerably faster.

From the download page you'll find precompiled binaries for Windows (x86), Linux (x86/x86-64), MacOS X (ppc/x86/x86-64),

iOS and Android, using the dynamic embedded versions only.

If you want to use the non-embedded versions (to use with your own plugins), you'll need to compile orx yourself from the source.

Everything compiles out-of-the-box for the hardware platforms cited above.

The embedded versions currently use:



GLFW-based (+stb_image/webp/qoi/BasisU) display, joystick, keyboard and mouse plugins for all non-iOS/non-Android platforms

miniaudio (+stb_vorbis) sound plugin for all platforms

LiquidFun-based physics plugin

Homemade rendering plugin (2D)

OpenGL ES display plugins for iOS and Android

Touch/MultiTouch-based mouse plugin for iOS and Android

Accelerometer-based joystick plugin for iOS and Android



If the headless variants of the embedded versions are requested, dummy plugins will be used for the display, joystick, mouse, keyboard and soundsystem plugins.

The render & physics plugins will be the same as the ones used for the non-headless versions.

All the 11 basic and advanced official tutorials are shipped with the dev packages, including precompiled release binaries.

Some tools (precompiled binaries only) are also shipped with the dev packages:





orxCrypt  : command line tool to encrypt/decrypt/merge multiple config files



orxFontGen: command line tool (based on FreeType2) to generate custom bitmap fonts (.png texture & .ini config file) from TrueType fonts





Packages





You can download all the packages from SourceForge or GitHub.

Here is a list with a small description for each package.





orx-doc-1.15.zip                  : orx's API doxygen documentation



orx-src-1.15.zip                  : orx's source code, ready for compile after running the setup script



orx-dev-linux32-1.15.tar.bz2      : dynamic embedded binaries for Linux (x86), release/profile/debug + tools.



orx-dev-linux64-1.15.tar.bz2      : dynamic embedded binaries for Linux (x86-64), release/profile/debug + tools.



orx-dev-mac-1.15.zip              : dynamic embedded binaries for MacOS X (x86/x86-64), release/profile/debug + tools.



orx-dev-mingw-32-1.15.zip         : dynamic embedded binaries for Windows (mingw/x86), release/profile/debug + tools.



orx-dev-mingw-64-1.15.zip         : dynamic embedded binaries for Windows (mingw/x86-64), release/profile/debug + tools.



orx-dev-vs2017-32-1.15.zip        : dynamic embedded binaries for Windows (Visual Studio 2017, x86), release/profile/debug + tools.



orx-dev-vs2017-64-1.15.zip        : dynamic embedded binaries for Windows (Visual Studio 2017, x86-64), release/profile/debug + tools.



orx-dev-vs2019-32-1.15.zip        : dynamic embedded binaries for Windows (Visual Studio 2019, x86), release/profile/debug + tools.



orx-dev-vs2019-64-1.15.zip        : dynamic embedded binaries for Windows (Visual Studio 2019, x86-64), release/profile/debug + tools.



orx-dev-vs2022-32-1.15.zip        : dynamic embedded binaries for Windows (Visual Studio 2022, x86), release/profile/debug + tools.



orx-dev-vs2022-64-1.15.zip        : dynamic embedded binaries for Windows (Visual Studio 2022, x86-64), release/profile/debug + tools.



orx-full-ios-1.15.zip             : static embedded binaries for iOS, release/profile/debug, simulator/device + doc + source + XCode project file.



orx-dev-android-1.15.zip          : static embedded binaries for Android, release/profile/debug (device).



orx-tutorial-linux32-1.15.tar.bz2 : tutorials for Linux (x86)



orx-tutorial-linux64-1.15.tar.bz2 : tutorials for Linux (x86-64)



orx-tutorial-mac-1.15.zip         : tutorials for MacOS X (x86/x86-64)



orx-tutorial-mingw-32-1.15.zip    : tutorials for Windows (mingw/x86)



orx-tutorial-mingw-64-1.15.zip    : tutorials for Windows (mingw/x86-64)



orx-tutorial-vs2017-32-1.15.zip   : tutorials for Windows (Visual Studio 2017, x86)



orx-tutorial-vs2017-64-1.15.zip   : tutorials for Windows (Visual Studio 2017, x86-64)



orx-tutorial-vs2019-32-1.15.zip   : tutorials for Windows (Visual Studio 2019, x86)



orx-tutorial-vs2019-64-1.15.zip   : tutorials for Windows (Visual Studio 2019, x86-64)



orx-tutorial-vs2022-32-1.15.zip   : tutorials for Windows (Visual Studio 2022, x86)



orx-tutorial-vs2022-64-1.15.zip   : tutorials for Windows (Visual Studio 2022, x86-64)



All the *-dev-* packages above include:



orx release/profile/debug libraries used for linking

runtime release/profile/debug orx libraries

headers to include at compile time

template files exposing which properties can be accessed using the config system (for user reference only, not needed by orx)



All the *-tutorial-* packages above include:



heavily commented source code for 11 basic and advanced tutorials

precompiled binaries (orx link library, orx runtime library)

headers to include at compile time

template files exposing which properties can be accessed using the config system (for user reference only, not needed by orx)

build/project files





Compiling







IMPORTANT - FIRST STEP:





If you just cloned orx's repository (or downloaded the src package), you will need to run the setup.bat / setup.sh script located at its root before being able to compile the engine.

This script will download all the required dependencies and generate the project files for your platform.

Finally, the script will hook itself to mercurial/git so you won't have to run it manually ever again.

The easiest way to learn how to build your project using orx for a given platform

is to check orx's wiki.

The generated project files will contain 6 different configurations to build orx: Debug, Profile & Release in both regular and Core flavors. Here's what they do:





Debug: These configurations will build orx in debug mode. They are the only configurations that will output warning and error messages resulting from incorrect data, code and behaviors. These configurations are also much slower than the other ones but is recommended during development to catch any mistake. Note: the internal profiler is also available with these configurations.





Profile: These configurations will build orx in optimized mode but will keep the internal profiler, slightly slowing down the execution but allowing the user to get high level profiling information which can be very useful during development.





Release: These configurations will build orx in optimized mode, without the internal profiler. These are the configurations one should be using when shipping their project. Note: on Windows, the OS terminal will also be hidden with this configuration.





Core: Those configurations will only build orx's core as a static library. With these configurations, no plugins will be compiled/embedded. In non-Core configurations, all the plugins are built and embedded inside orx's library, and should be the configurations used by most users. The Core configurations are typically used to build orx's tools that do not require any plugin (orxCrypt & orxFontGen).





Here's a quick list of the available compile preprocessor flags:





__orxDEBUG__    : used to compile and link against the debug versions of orx library

(liborxd.a / orxd.lib / liborxd.dylib), if not specified it refers to

the release versions (liborx.a / orx.lib / liborx.dylib).


NB: If you want to link against the debug versions of orx library, you need

to specify it to your compiler!





__orxPROFILER__ : used to enable the profiling push/pop macros for release builds

It's automatically enabled for debug builds and it has been enabled to

build liborxp.a / orxp.lib / orxp.dll / liborxp.dylib / liborxp.so


NB: You can define it in your projects even when using regular release builds,

but you won't be able to see orx's internal profiling markers!





__orxSTATIC__   : used to compile and link against the static versions of orx library.


NB: If you want to link against the static versions of orx library, you need

to specify it to your compiler!





__orxEMBEDDED__ : used to compile the embedded versions of orx library.


NB: this flag is ONLY needed when compiling orx library, not when linking

against it.





__orxHEADLESS__ : used to embed plugins that are compatible with a headless mode.


NB: this flag is ONLY used when compiling orx library

and when __orxEMBEDDED__ is also defined!





There are other preprocessor flags used when compiling the orx library,

but those should be easy enough to decipher.  markdo

However, you might want to specify them manually for cross-compiling or

use them so that your code will behave differently depending on the architecture

for which you're compiling. Here's a quick list of these flags:


Flag

Description

__orxARM__

orx is being compiled for an ARM architecture

__orxPPC__

orx is being compiled for a PowerPC architecture

__orxPPC64__

orx is being compiled for a PowerPC 64 architecture

__orxX86__

orx is being compiled for a x86 architecture

__orxX86_64__

orx is being compiled for a x86-64 architecture

__orxLITTLE_ENDIAN__

orx is being compiled for a little endian architecture

__orxBIG_ENDIAN__

orx is being compiled for a big endian architecture

__orxGCC__

orx is being compiled with gcc

__orxMSVC__

orx is being compiled with visual studio C/C++

__orxLLVM__

orx is being compiled with llvm/clang

__orxWINDOWS__

orx is being compiled for Windows

__orxMAC__

orx is being compiled for MacOS X

__orxLINUX__

orx is being compiled for Linux

__orxIOS__

orx is being compiled for iOS

__orxANDROID__

orx is being compiled for Android

__orxCPP__

orx is being compiled with a C++ compiler

__orxOBJC__

orx is being compiled with an Objective-C compiler

__orxPLUGIN__

a plugin for orx is being compiled

__orxEXTERN__

code using orx's library is being compiled



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Enjoy!