add support for 2d textures in sprite shader - fixes #386

skip sprite rendering when there are no sprites in the scene

make asset paths configurable

fix debug output

put snake test program into separate directory

implement view matrix in sprite shader

add generic mesh draw function and move sprite draw function to separate unit

create catch-all util for GL errors + refactors mesh creation

some minor improvements

auto-extend buffer when loading shader code

go back to reading shader code from files

prepare code for embedding shader sources with c23 #embed

update to newest versions of uwproj and ucx

revert introduction of high level ucx trees and stick to the low level API

fix memory leak in asc_text_printf()

update to recent snapshot of ucx 3.1

(0) -16 +16 tip

mercurial