2e8654909af35400dcb93b8d473971af1293c73f
They don't do anything, and they're never called; I think they're D3D hangovers. Don't make Actor::DrawPrimitives pure virtual. It's useful to make Actors that don't draw anything, and only receive updates, to modularize functionality, such as TimingTip. This also makes Actor::GetCommandLength somewhat less of a heinous hack.
Languages
C++
85.7%
Lua
4.3%
C
4.3%
Rich Text Format
2.3%
CMake
1.1%
Other
2%