* The loop for `userConfig.AddDefs` feels like it should be moved out of `loaddefinitionsfile()` and into `LoadDefinitions()`, but that's subject to discussion.
This is not relevant for any of the stock movies as they use separate sound files, we need to be aware of mods using the streaming sound capabilities of MVE and SMK.
While in GZDoom this uses the IWAD name, the same approach is a lot more problematic here because of name duplications with far more incompatible content.
So this allows targeting a group of base games instead of one specific version.
To allow cumulative loading without interfering with other ports, Raze will now look for files called xxxx-raze.def, where xxxx is the default .def name (e.g. duke3d-raze.def for Duke3D.) and if that is found, cumulatively load all same-named files - it will fall back on the default name if no such thing is found.
-def still overrides both and will not cumulatively load.
* moving polymost_voxdraw into polymost.cpp.
* consolidated all remaining voxel code in hw_voxels.cpp. All original Build voxel code is completely gone now, except for polymost_voxdraw, so this got moved out of the build/ folder.
* integrate Blood's voxel init code into the main function.
* some further cleanup was allowed as a result of this, so engineInit is gone now because these parts can now be done outside the games' app_init functions.
* This works for Raze's running directory, but is not pulling in autoexec.cfg files from subdirectories from Raze's running directory (Duke, Duke.Duke) or paths where game content resides (Steam, for instance).
* Partially addresses #110
* Remove joystick scaling from `CONTROL_GetInput()`.
* Store turnspeed as constant at top of `processMovement()` and use it for joystick yaw/pitch scaling. This adds the advantage of having the out-of-box turning speed match the keyboard's turn speed and also attenuates when the player is not running.
* When interpolating on the initial setup, when binangle reached an overflow point when going lower than zero, the engine was spinning the player around clockwise to the new angle (2047, for instance).
* Interpolating after casting as uint64_t with a workflow similar to the original games, the issue went away.
* Cleaned up other interpolation functions to be of a consistent workflow.
* Scale keyboard input turning down to degree speeds.
* Uplift some remaining Q16.16 code in `applylook()` to full BAM precision.
* Move static calculations of aim and look speeds for `sethorizon()` back into function since GameTicRate isn't set right before calculation is done.
* Simplify the angle target setup back to a basic value like before.
* Repair SW interpolation issues of weapon sprite drawer when rotating left/right.
* Fix SW death horizon constant values following change of horizon center to 0.
* Struct made up of binangle class units.
* Create signed clone of binangle for use with look_ang and rotscrnang.
* Append currently outgoing function names with `2` at the end to avoid conflict.
* Started with the most complicated game first.
* Struct made up of fixedhoriz class units.
* Append currently outgoing function names with `2` at the end to avoid conflict.
* Determined maximum horizon able to be handed by engine in Q16.16 format is 280039127.
* Re-did pitch math to work on this known maximum and standardised pitch around -90/90 degrees as it should be.
* Because pitch is now -90/90 and not ~-188/188, m_sensitivity_y probably requires re-scaling.
* Blood had this right. It makes sense that the horizon be based around as it's easier to work with.
* Removed all associated game math to deduct default horizon of 100 when doing weapon zvel etc, meaning actual horizon can just be used.
* Re-did return to center function to work on the already converted pitch. Return speed should be 1:1 with previous code.
* Reduce `hidInput->mouseturny` to previous scaling (0.25 of incoming input).
* Change `hidInput->mouseturnx` to be 0.5 of incoming input (33% slower than b57e13ff62, but matches what other ports by providing a 2:1 scale).
* Remove further divisions beyond m_side and m_forward and adjust code in `processMovement()` accordingly.
* Change scaling for `mousevelscale` in `processMovement()` to be 1/160th of keymove. Slightly lower for Duke and a lot faster for Blood where it's needed.
* Duke/RR: Fix `SB_CENTERVIEW` not clearing while `cl_syncinput 1`.
* Duke/RR: Remove superfluous call to `apply_seasick()`.
* RR: Change two calls from `playerSetAngle()` to `playerAddAngle()` Updated version of `playerSetAngle()` doesn't stop setting angle until target is reached, a bit too strict for this and compromised vehicle turning.
* `applylook()`: Remove dead flag. Was only used with Duke, no other game called the function when dead anyway. Since the input helpers are processed outside of `applylook()` now this is not needed.
* `applylook()`: Extend function with a bit of commentary.
