hhyyrylainen/leviathan

Leviathan Game Engine

leviathan's Issues

Add Ogre shader cache folder

This will speed up launching games after the first time. It would also be good to figure out a way to precompile the shaders for all platforms.

Ogre recommends for this purpose creating a scene that uses all the materials and loading that in order to generate all the needed shaders and then using the shader cache store them.

Add ruby files to cmake to make them show up in visual studio

Using set_source_files_properties("file" PROPERTIES HEADER_FILE_ONLY TRUE) might be enough to not make cmake complain about them being included. They should also have their own resource group.

Support for graphics options changing

Basically doing an options menu is impossible currently. It needs engine support for affecting graphics parameters (and writing the changed parameters to the configuration files) on the fly.

Things like resolution, FXAA, sound master volume etc.

Required by: Revolutionary-Games/Thrive#509

Make file generator make the files read only

The cmake configured files are made read only. But the FileGenerator generated ones aren't

Add physics debug drawer

There should a mode where all the physics bodies are drawn for physics debugging purposes.

Setup.rb 404 error

I'm a little inexperienced, so I'm not sure if its something I'm doing wrong, but when I try to compile Leviathan by running Setup.rb, I run into a problem. Once it reaches the part where it tries to clone CEF, it encounters a 404 Not Found error. I think the problem is that it is trying to clone CEF from boostslair.com, which doesn't exist. I don't think Setup.rb is out of date or anything, because I just cloned Leviathan less than an hour ago. Is there something else I should be doing?

Create Logger in CEF process

Right now using some common functions that uses the logger will crash the GUI process. Instead there should be an additional Logger created in the GUI process that uses the CEF log macros. The logger should only be created when it is actually ran in a separate process (and not with --single-process).

Resolve the RPATH situation

I fixed linking with ld.gold by adding -Wl,--disable-new-dtags which is not optimal.

This should be somehow properly resolved.

The temporary fix was done in this commit: a6a0cb4

Some links:
http://blog.qt.io/blog/2011/10/28/rpath-and-runpath/
chros73/rtorrent-ps-ch#93
http://manpages.ubuntu.com/manpages/trusty/man1/ld.gold.1.html
https://medium.com/square-corner-blog/building-portable-binaries-50ca4f3d75cd
http://man7.org/linux/man-pages/man8/ld.so.8.html
https://stackoverflow.com/questions/26281813/what-is-ld-runpath
https://wiki.debian.org/RpathIssue
https://stackoverflow.com/questions/7967848/use-rpath-but-not-runpath (seems to say that using RPATH is fine when bundling dependencies, which is done here)
https://amir.rachum.com/blog/2016/09/17/shared-libraries/
https://stackoverflow.com/questions/17450573/how-to-actually-change-set-environment-variables-from-within-emacs

Changing linkers is done with sudo alternatives --config ld

Speed up startup

Some ideas as to what to do:

• make Ogre and CEF initialization simultaneous

Speed up setup with skipping configuring some deps

Configuring ffmpeg takes a long time so an option to only reconfigure it when it has changed (a new commit) would be excellent for speeding up ci builds.

Requires RubySetupSystemChanges

Add JIT for AngelScript

To speed up script execution a JIT compiler should be added. AFAIK the only public one for AngelScript is this: https://github.com/BlindMindStudios/AngelScript-JIT-Compiler

Before it works perfectly it should be an optional flag to enable it.

Required by: Revolutionary-Games/Thrive#612

Fix warnings from cAudio

cAudioPlatform.h add already defined check to line 57 "#define _CRT_SECURE_NO_WARNINGS 1"

c:\projects\leviathan\build\thirdparty\include\caudio\caudioplatform.h(57): warning C4005: '_CRT_SECURE_NO_WARNINGS': macro redefinition (compiling source file C:\projects\Leviathan\Engine\GUI\VideoPlayer.cpp)

This should be done to the used cAudio fork as the main project seems dead.

Resource overwriting / extensive hooking for modding

Modding isn't supported properly yet, but it should. So some solution needs to be created with file overwriting or some extensive hook system that mods could use.

Also needs documentation about modding.

Needed by: Revolutionary-Games/Thrive#584

engine refuses to compile

tried to compile the engine but it gave me this error code
ERROR: Downloaded file hash doesn't match expected hash, 4960c8f5c4fc5829958adae0c64904c0290569c815ef93d15ee5ca05b4206b4d != 50076ddb0225a7eb440bbb67ac07d74186068a31be2c796a6920beeea446e68b

Split the generator script

The world and network packet generator script is huge and should be split into much smaller files to make it less unwieldy to work on.

Add a way to specify dependent components

The dependent component must always be deleted when the thing it depends on is deleted.

Required by: Revolutionary-Games/Thrive#615

Write AngelScript beautifier

For use by the editor and automatic beautifying scripts (for example Thrive: Revolutionary-Games/Thrive#598)

It should probably be based on the AngelScript parser for conformant parsing.

Expose log functions to JavaScript

Right now only console.log can be used to log things from JS. That's not optimal. Instead something like Leviathan.LogInfo() function should be added for JS to proxy calls to LOG_INFO.

Make render system selection work

Right now it is very much untested if Direct3D11 works.
It should also be able to run the samples when selected.

This would allow this Thrive issue to be done: Revolutionary-Games/Thrive#607

Make the file generator properly indent lines

Besides splitting it into more files it would be good for readability to make an output writer class that would have methods like:

f.puts "if(stuff){"
f.indent
f.puts "return true;"
f.deindent

to make the code output code cleaner and easier to read. And also the resulting code

Fix GUI scroll input events

For some reason CEF doesn't want to react to scroll events when the scrollable part of the GUI doesn't take up the entire screen.

Maybe sending mouse position events or something before the scroll would make it work.
A workaround could maybe be made with JavaScript forcing scrolling when a scroll event is sent to the GUI.

Resolves this issue: Revolutionary-Games/Thrive#603

Update angelscript

2.33.0 was just released.

SoundDevice configuration should track "default" device

Right now on the first startup the default device name is saved and then that is always used when available.
Instead it should work like this: by default the saved name would be "default" and that would mean to always use the default device.

The user could still customize the choice (once option menu support is added) by selecting a different device.

Fix logging in tests

Using the INFO macro will lose all the messages when they go out of scope. So using it isn't optimal. But there might not be a much better choice...

Add conversions for script calling

Now only exact type matches are accepted. It would be much better to allow integer and float type conversions. And also conversions with dynamic_cast (if it is possible to somehow detect that the cast might succeed). This makes calling scripts from C++ easier.

Fix Pong Sample

Right now the sample is utterly broken after some major engine changes.
Also the Samples executable needs some GUI fixing.

This should wait until major parts of the engine have been stabilised.

Apply the good parts of PR 32

PR: #32 has (some) good parts along with some changes I don't want. Those parts should be applied separately.

GameWorld needs system multithreading

Right now systems are run subsequently. It would be better to allow the game world script to specify dependencies on the systems and generate independent execution flows that can be run in parallel.

Required by: Revolutionary-Games/Thrive#314

Directly grab SFML networking sources

This way SFML dependency will go away and the code can finally be fixed to work better with nested sf::Packets. And the socket code should be updated to work with ipv6 (if SFML hasn't done that yet).

It might be worth it to try to avoid major changes to make it easier to grab fixes from SFML.

Add option to allow text selection in GUI

There is hopefully an option in CEF to set the default mode to allow selecting the text.

Add option for hardware cursor

Software cursor is now added, but for games that don't have a steady framerate having the option of using a hardware cursor would be nice.

This should be added to Window::SetCustomCursor method.

Physics constraints reimplementation

These broke with the major engine rewrites and need to be reimplemented. Perhaps as a component type.

Needed by: Revolutionary-Games/Thrive#527

Add wrapper generation for world generator

World script needs to be able to generate wrappers for stuff. Right now the physics creation can be ran with a nullptr that is then converted to a reference. So it needs to generate wrappers for using pointers and checking them for null. Unless AngelScript automatically stops this, but it sort of looks like it doesn't.

Add software cursor support back

The current solution grabbing the cursor from CEF almost works all of the time, but an option for fully software cursor (like before with CEGUI) would be quite excellent. If it also could be controlled from JavaScript (with the cursor properties) it would be even better.

Separate the NewtonCollision types to own classes

separate the NewtonCollision types to own classes to avoid calling wrong things on the wrong objects.
This is for script bindings

Enforce a strict material id order for performance

It should be possible to always require that a lower material ID forms pairs with higher IDs. This makes it possible to only check one way around for the material pair in physics callbacks, hopefully giving some performance increases.

VideoPlayer audio stutters

The approach with the audio callback (in the audio thread) trying to also read the file and decode audio when it has nothing to play seems to result in stuttering audio.

A fix for this is needed.

Initial idea: make the video frame decoding decode up to 10 future frames and make buffers of audio chunks for the audio thread to play, which will hopefully then always be able to quickly get audio data to play.

Scripts should require specific access to render queue modes

If a script changes the render queue mode without much thought it will crash the game.

BSF log messages are duplicated to cout

bs::Debug::log doesn't know if a custom callback was used.