This is desparately needed for KIMOKAWAIII, since there's many instances I need to change nextlevel but still want to use the existing player exit stuff.
* Add damagetype to P_RadiusAttack (optinteger in lua, A_Explode var1).
* Removed the prevention of MF_BOSS objects from getting P_RadiusAttacked. This was a holdover from DooM (I checked) - a way to prevent the Cyberdemon from gibbing itself when firing point blank into a wall, and also a way to make it and the Spider Mastermind harder.
* Enemies are solid to other enemies movement-wise now.
* (Fun little aside - if you remove MF_SOLID from a monitor, it now behaves like they did in Sonic Adventure (poppable by colliding with, not just attacking).
* Fixed Metal Sonic battle conflict in MF_PAIN/mass not picked up earlier.
* Miscellaneous tiny code tweaks.
* Handle all chain objects as a hnext/hprev chain.
* When removing mobjs with hnext/hprev, "repair the chain" (make the h links meet).
* Fix hidden slings, which I accidentially broke when I revamped maces the first time.
* Kill MF2_MACEROTATE. Not needed for anything anymore.
* P_MaceRotate now available to Lua to make up for it.
* Related: Made modifying hnext/hprev using Lua safer, so it keeps the reference counts in play.
* P_GiveCoopLives bundles the coop lives reward for everyone versus reward for one person in other gametypes thing into one function. Available in Lua.
SRB2's built-in action types will now all be pushed as META_ACTION, state_t.action can be assigned META_ACTION and return it
getUserdataType returns "action" for META_ACTION variables
* Serious refactor of - and internal exposure of - what has become S_StartCaption().
* Renaming of a few existing captions.
* The prevention of access to - or writing over - sfx_None's stuff in SOC or Lua.
* The new Lua wrapper function S_StartMusicCaption(string, tics, optional player), which essentially allows custom music captions to be created. (This is best used for stuff like final lap music in SRB2 Kart or bonus time in a thokker-like game, not a comprehensive Now Playing expy. That'd be a different kettle of fish.)
Also, updated all the lock-on stuff to use P_IsLocalPlayer instead of rolling my own.
* Getting hit whilst on a swinging mace doesn't send you off in roll/jump state.
* P_GetJumpFlags replaces a bunch of copypasted code.
* Homing attacking a spring sends you directly on its path, rather than rocketing off in the direction you were preiously hurtling in.
* Lock on targets bob now, and are used for CA_HOMINGTHOK and SH_ATTRACT as well.
* Flag stuff is now animated like it was designed to be but which was kinda messed up.
* Cork sounds.
* P_SpawnLockOn(player_t player, mobj_t lockon, statenum_t state) for Lua.
* Added homing/firing CA2_GUNSLINGER stuff at egg guard shields.
* Fixed homing stuff wrt egg guard shields and sea egg balloons.
* Fixed attract orb goin' gold when doing a CA_HOMINGTHOK homing ability.
* Fixed positioning of player during homing attack.
* Cleaned up lockon spawn code.
*P_LookForEnemies is now side-effect-less and only provides a pointer to the found mobj
*player-jumping is dead, long live PF_STARTJUMP
*per Mystic's request, CA2_GUNSLINGER has a targeting icon. It also has a more restricted vertical aiming range.
*mobj for this is in the game as requested
*fast teetering animation flag
*general code cleanup
