Added overload for DrawString taking a Point to avoid creating a rect for callers which only use position. This also documents the way DrawString operates when passed a clipping rectangle with a dimension of 0.
As part of this overload removed the logic for 0 width regions from DrawString. This does change the behaviour of the Rectangle version if called with a rect with width 0, all callers using that behaviour have been updated in this commit.
Using Rectangle/Size allowed simplifying the logic for certain calls where they could use DrawText alignment flags, previously this was manually aligning by calculating dimensions and offsetting the position. This also fixes#2169
Also includes a few instances where a temporary buffer was used to set the text to be drawn with unbounded sprintf calls, replaced those with snprintf as is recommended in modern C applications. Moving to C++ strings would be good in a future refactor.
1. Rename `CelGetFrameStart` to `CelGetFrame`, in line with the other 2
functions with the same name and load the `uint32_t` safely.
2. Remove redundant `FrameHeader`, simply use `LoadLE16`.
3. Document all the functions.
Hoping to add a few tests for normal operation as a sanity check. The eventual goal is to be able to split the distribution functions from the engine so they can be tested and implemented independently.
This is recommended for GTest and is a requirement to use FRIEND_TEST (see http://google.github.io/googletest/reference/testing.html#FRIEND_TEST). If the random number generator code becomes a class with private attributes this allows us to switch to test fixtures more easily.
Use Point wherever possible
Make some functions static (not exhaustive)
Reduce excessive indentation (not exhaustive)
Declare variables as needed (not exhaustive)
obligaron
Anders Jenbo
Andrew James
qndel
Vladimir Olteanu
Gleb Mazovetskiy
Matheus Gomes
Juliano Leal Goncalves