Hi! I could try to add some graphic functions, but, unfortunately:

1. The GBA hardware does not allow drawing individual pixels and displaying tile layers at the same time. Allowing software rasterization would disable the hardware accelerated graphics support, so background layers would no longer appear.
2. If I enable software rasterization and displaying individual pixels, the engine could slow down significantly if people use line/point/circle graphics drawing features. The GBA CPU speed is limited, and it would not be possible to draw very much without significantly reducing the framerate.

I really want a BPCore to have some more graphic functions to draw such as line, point, rect, circle, ...

I'm working on a multiplatform game engine that also supports GBA. Currently, support is much lower and there aren't many optimizations.

But you might like it, it's simple and has an online IDE and npmjs cli package.

https://github.com/gamelly/core-native-gba

@nguyengiabach1201