main loop

[m0ppers]

Right now the API doesn't provide a way to shutdown in a clean way (that I am aware of) for non windows platforms.

For windows there is this possibility (which is provided by windows and not by le3d):

https://github.com/Marzac/le3d/blob/master/examples/cube/cube_win.cpp#L62

The unix example just quits on keypress. apart from that the mainloop is just and endless loop. for the amiga I currently do a hard exit() whenever the user clicks the close button. This is a non graceful exit.

What I would like to have is something like glfw is doing:

https://github.com/glfw/glfw/blob/master/examples/simple.c#L134

This way one could set a static global variable defined in the window_PLATFORM.cpp and which could be queried by the mainloop and allow for a simple graceful exit.

What do you think?

[Marzac]

I am looking how to implement that.

[Marzac]

I propose the following:

I introduce a new class called system_os (system_win, system_unix ...)

That's made to initialize system properties and objects (excepting windows, drawing contexts and timing modules). It can be used to configure application native properties, system memory manager / scheduler configuration, BIOS properties, system interrupts / signals handling, whatever is OS / HW specific per platform.

It will have several methods:

• void initialize() (called at the beginning)
• void terminate() (called before exit)
• void update() (called each frame)
• bool isRunning() (called to know when to exit)
• int getStatus() (called to get status ... why it exited for example)

It will wrap X11 and Win32 into a unified and simple interface, it does not need to be more complicated than that. What do you think?

[m0ppers]

sounds very good 👍

[Marzac]

I have pushed a new version of the engine with the new system class. That reduces the cube example to one single cpp file (as it should be).

I have not checked the code, at all, on MacOs. It SHOULD work on Linux (I'll check that back home). It does work on Windows OS (compiled with mingw64 & VS).

[Marzac]

Any thoughts / feedback on the current implementation @m0ppers?

[m0ppers]

I would have done it differently (HATE global static variables :D) but it is totally sufficient for now and works :)