Porting Typing and new functionality from 3b1b/manim

[MrDiver]

Overview: What does this pull request change?

This pull requests ports all the new changes from 3b1b/manim and adds type hints to OpenGLMobject and OpenGLVmobject

Current annotations and state is pushed in https://github.com/MrDiver/manimlib
Every method commented with #DONE is already in this PR

TODO:

• find out the difference between manimgl arrange_in_grid and our version

changelog

OpenGLMobject

Additions:
init_constructor, __add__, __mul__, are_points_touching, is_touching, apply_over_attr_arrays, get_ancestors, insert_submobject, set_submobject, set_rgba_array, set_color_by_rgba_func, set_color_by_rgb_func, set_rgba_array_by_color, arrange_to_fit_dim, replicate
Renamed:
set_rgba_array -> set_rgba_array_by_color (added new set_rgba_array)
set_rgba_array_direct -> set_rgba_array

Removed/Depcrecated:
set_rgba_array_direct

Changes:

• self.uniform.fixed_orientation_center is now a np.ndarray
• __init__:
  • Now holds all initial self.x = x assignments and the rest of the constructor which is useful to see is now in init_constructor
• set_points:
  • Uses asarray instead of array to not unnecessarily copy arrays when not needed.
• add_updater:
  • now uses self.update(dt=0)
• set_color:
  • now uses set_rgba_array_by_color instead of setting color directly
• set_opacity:
  • now uses set_rgba_array_by_color
• interpolate:
  • now treats all uniforms equally
• fix_orientation:
  • creates a np.ndarray to set fixed_orientation_center instead of tuple

Temporary changes:

• check_data_alignment:
  • Does not directly work on self.data instead returns the new result directly to be used in get_resized_shader_data_array

---

OpenGLVmobject

Additions:

• @property:stroke_opacity, _stroke_opacity, @property:stroke_width, _stroke_width

Removed/Deprecated

Changes:

Temporary changes:

---

Shader

Additions:

Removed/Deprecated

Changes:

• set_uniform:
  • now converts np.ndarray to tuple for easier outside usage to only need to convert on the last step when creating uniforms

Temporary changes:

---

Color

Additions:

Removed/Deprecated

Changes:

• rgb_to_hex:
  • always returns Uppercase version of Hex string for uniformity

Temporary changes:

---

Motivation and Explanation: Why and how do your changes improve the library?

Links to added or changed documentation pages

Further Information and Comments

Reviewer Checklist

• The PR title is descriptive enough for the changelog, and the PR is labeled correctly
• If applicable: newly added non-private functions and classes have a docstring including a short summary and a PARAMETERS section
• If applicable: newly added functions and classes are tested

[MrDiver]

Depends on

• Finally fixing the Color situation #2837
  after that we can continue with deepcopy and serialization

[MrDiver]

#3107 Will be continued here