Add gmath for game and physics

[Angluca]

Using vectors(Vec3/4) and matrices(Mat4) to calculate the physical direction and dynamics can be of great help to writing games and microcontrollers

[bvdberg]

It looks like a nice float vector library to use if you have use for that. 2 remarks:

• math is the c2 port of libc math, so this file would belong to it's own library that depends on math
• The example use function should not be in the .c2i file, unless as comments

Since we have recently started with adding libraries, we will have to think of generic way of adding more, since putting them all in the same archive is not maintainable. One thing that would be ok is to extend the C2_LIBDIR environment variable to support lists like $PATH. That way users can just add their own libraries seperately. In addition we could extract the current 'extra' libs like SDL, mbedtls and put them in a separate c2-extra-libs archive. The current libdir in c2c would then only include the 'core' libs that c2c itself needs (libc/math/pthreads).

Ideally there can also be a higher level tool that fetches libs based on some config file. Like the rust crate system.

[chqrlie]

It looks like a nice float vector library to use if you have use for that. 2 remarks:

• math is the c2 port of libc math, so this file would belong to it's own library that depends on math

This library would be more efficient as a source library. We need a simple way to support this concept

• The example use function should not be in the .c2i file, unless as comments

Or possibly in an #ifdef TESTING block...

Since we have recently started with adding libraries, we will have to think of generic way of adding more, since putting them all in the same archive is not maintainable. One thing that would be ok is to extend the C2_LIBDIR environment variable to support lists like $PATH. That way users can just add their own libraries seperately. In addition we could extract the current 'extra' libs like SDL, mbedtls and put them in a separate c2-extra-libs archive. The current libdir in c2c would then only include the 'core' libs that c2c itself needs (libc/math/pthreads).

I would favor both removing C2_LIBDIR and make it automatic, and adding C2_LIBPATH with the above semantics.

Ideally there can also be a higher level tool that fetches libs based on some config file. Like the rust crate system.

Yes, it seems a good approach to get more traction on the language too.

[Angluca]

Look forward to it

I don't know use c2 struct constructs, Haven't example, haven't self pointer and only run once when more this var, Maybe this attribute is not what I thought, I thought it was cpp.class.construction

fn void MyData.init() @(constructor) {
    printf("MyData.init() ---\n");
}
fn void MyData.deinit() @(destructor) {
    printf("MyData.deinit() ---\n");
}