Square particles with random size #54
Description
Currently, if we want square particles, they have to be fixed size both when they spawn and when they die. For example, the particle with start size (1, 2) on both x and y and end size (2, 3) on both x and y will probably warp in weird ways.
Preferred solution:
Add a "start_size/end_size" field to particles and remember if it or separate x/y where specified last. Use the last specified.
Other discussed solutions:
- Flag that ignores y and only uses the x-values. (Implicit and arbitrary.)
- Runtime error (Result). (Weird and not actually an error.)