High memory usage in `arcade.draw_text`

[markjoshua12]

Bug Report

Calling arcade.draw_text with a string that's changing seems to rack up memory, probably because of the global_text_cache storing each text it draws.

Here's the test code:

(check memory usage with Task Manager)
https://pastebin.com/0hK8EgG2

A faster test (WARNING: Memory usage may become high pretty fast)
https://pastebin.com/bcawDr2D
(My computer actually froze running this test for a few minutes as the app used more than 1GB or memory)

Solution:

Either add an argument to disable caching, make the max cache size smaller (currently at 5000), or somehow make the cache use less memory (each entry in the cache is a Text class which contains a SpriteList)

Thanks
-Salami

[einarf]

Depend on #666

[pvcraven]

Going to close this. The 'fix' will be using new text support in Pyglet 2.0. So no specific fixes planned for the currently implementation of text.