araq/pixels

Toy support library for primitive graphics programming.

pixels's Issues

drawText `x` param doesn't work

import pixels
for i in 0..10:
  drawText i * 10, i * 10, $i, 12, Yellow

results in

nothing appears in window

I have the "Mastering Nim" book. Trying to run the first code example:

import pixels

# needed to install sdl2 and sdl2_tff

put_pixel(5, 9)
put_pixel(11, 18, Red)

(btw the book didn't say I needed the sdl2 and sdl2_tff libraries; kept getting compilation errors until I figured it out)

Anyway, I run this example and a window appears, but nothing is in it. It just shows the background pixels fixed in place:

untitled.mp4

Is there anything else I need to install to make this work? Or some kind of config setting?

OS is Manjaro Linux KDE.

Implicit dependencies : sdl2 and sdl2_ttf

On Archlinux 5.18.14-zen1-1-zen, I need to install sdl2_ttf, otherwise I get a runtime error.

could not load: libSDL2_ttf(|-2.0).so(|.0)
(compile with -d:nimDebugDlOpen for more information)
Error: execution of an external program failed: '/home/kolmogorov/Documents/dev/mastering_nim/src/chapter1 '

I added import sdl2 on top of the first script of mastering nim example, and downloaded sdl2_ttf via pacman:
sudo pacman -S sdl2_ttf
I had also installed sdl2 nim package through nimble. I solved my problem by this installation of sdl2_ttf. The dependency sdl2_ttf should be added to pixels.nimble.

drawText with Unicode doesn't work

import pixels
drawText 30, 40, "Hello, 世界", 16, Yellow

Results in the following on my macOS machine:

If I get some time, I'll dig into what changes need to happen to make this work.

Great book, btw!