fix typing in arcade.math.clamp

[DigiDuncan]

No description provided.

[DragonMoffon]

I am curious if there are other methods in arcade that could get this improved typing treatment? Stuff like the lerp function.

[pushfoo]

I'm considering including something like useful_types. There was some part of it I didn't like for some reason. It was more than just another tiny dependency in our heaping pile. Looking at their PR queue, it may have been that the project is bit slow to merge.

stuff like the lerp function

😎 Beat you to that one.
👇

arcade/arcade/math.py

Lines 49 to 78 in 553894e

	# This TypeVar helps match v1 and v2 as the same type below in lerp's
	# signature. If we used HasAddSubMul, they could be different.
	L = TypeVar("L", bound=HasAddSubMul)
	def lerp(v1: L, v2: L, u: float) -> L:
	"""Linearly interpolate two values which support arithmetic operators.
	Both ``v1`` and ``v2`` must be of compatible types and support
	the following operators:
	* ``+`` (:py:meth:`~object.__add__`)
	* ``-`` (:py:meth:`~object.__sub__`)
	* ``*`` (:py:meth:`~object.__mul__`)
	This means that in certain cases, you may want to use another
	function:
	* For angles, use :py:func:`lerp_angle`.
	* To convert points as arbitary sequences, use:
	* :py:func:`lerp_2d`
	* :py:func:`lerp_3d`
	Args:
	v1 (HasAddSubMul): The first value
	v2 (HasAddSubMul): The second value
	u: The interpolation value `(0.0 to 1.0)`
	"""
	return v1 + ((v2 - v1) * u)