Wallspike tweaks
Sorry, MI. You told me to test the objects via objectplace, and they worked fine there - but @FuriousFox had some [issues](http://i.imgur.com/DQuLYzz.png) when he finally got to place them via mapthing.
Specifically, I think the problem this was caused by was a straight up copypaste of the "height" attribute of MT_SPIKE into the "radius" field of MT_WALLSPIKE, when it should technically be half that to match the intended collision box. Some other stuff also got adjusted to match when I solved this.
FF's happy now - they work well enough to place, even if their [collision is a little wonky](http://i.imgur.com/o2rG0tV.gifv), but that's an MF_PAPERCOLLISION issue and more than a quick fix to be done in an evening.
Nab ```<root>/!LatestSRB2Files/srb2win_branch_spikefix.exe``` to test.
UPDATE:
* Support for MF_PAPERCOLLISION tmhitthing in P_SlideMove.
* Knockback for wallspikes is much more consistent, fixing FF's gif as posted above/below.
* Optimised away a FixedDiv call when determining the slopetype of a line.
* Changed the position of the wallspike base slightly.
* Made it so NOTHING can step up onto the player outside of other players, essentially killing a bunch of springs-launch-with-players style bugs. (I was able to recreate that issue with the wallspikes until I added this, which is why I did it in this branch.)
* Wallspikes are now bustable.
* Invert the solidity mapthing flag for spikes and wallspikes.
* Improve the frame arrangement for vertical spikes' spriteset. (Requires new patch.dta)
* Make all spikes consistently do damage with DMG_SPIKE.
* (unrelated) renamed "flame stomp" to "elemental stomp" in P_HitDeathMessages.
* (unrelated) Make gas jets not make noise if they have the ambush flag, per Sphere's request.
See merge request !107
* Support for MF_PAPERCOLLISION tmhitthing in P_SlideMove.
* Knockback for wallspikes is much more consistent.
* Optimised away a FixedDiv call when determining the slopetype of a line.
* Changed the position of the wallspike base slightly.
* Made it so NOTHING can step up onto the player outside of other players, essentially killing a bunch of springs-launch-with-players style bugs. (I was able to recreate that issue with the wallspikes until I added this, which is why I did it in this branch.)
****
* MF2_MACEROTATE. Apply to any object. Replaces the indiscriminate spamming of A_MaceRotate each tic.
****
* Mace point mapthings have been slightly modified.
- MTF_AMBUSH: bigger luke theory (has no effect on custom mace, different effect on spring mace)
- MTF_OBJECTFLIP: flips the objects, but nothing else - just so it doesn't look out of place in gravflip sections
- MTF_OBJECTSPECIAL: keeps it from attempting to play swinging sounds
- angle: tag of controlling linedef
- parameter: number of "spokes" minus one - for example, a parameter of 2 results in 3 equidistant maces rotating around the same point.
****
* Mace linedefs have been significantly revamped.
- line dx: number of chain links
- line dy: speed (in FU)
- frontside floor height: Pitch (in degrees; how much it "tilts" over - Yaw influences the axis it's tilting on)
- frontside ceiling height: Yaw (in degrees; rotation of entire thing on xy plane)
- frontside x offset: Phase (in degrees; how far it is through the rotation cycle)
- frontside y offset: Max speed (in FU; if less than speed, set to speed*2)
- backside floor height: Pinch (in degrees; 0 if no backside; essentially makes rotation conical instead of wheel-like)
- backside ceiling height: Roll (in degrees; 0 if no backside; rotates on the axis of the spinning - identical to Phase for spinning maces, but useful for rotating swinging maces as opposed to just offsetting them)
- backside x offset: Number of "antispokes" (0 if no backside; makes that many spokes not exist so you can put another mace/chain type in there instead; for combo mace/chain instead turns them into chains directly)
- backside y offset: Width (in number of extra chains per side; 0 if no backside; creates a "skiprope" arrangement)
----
- ML_NOCLIMB: for chains and chain-mace combos, allow for player control of yaw through strafe keys
- ML_EFFECT1: replacing the seperate mapthings, this makes a mace type swing instead of spin.
- ML_EFFECT2: for all spokes of the mace wheel ending in maces, make the chains out of the mace type (inverted for firebars)
- ML_EFFECT3: spawn a bonus mace type at the center(s) of rotation
- ML_EFFECT4: don't clip inside ground
****
* Mapthing 1104 represents both spinning and swinging maces from prior versions of SRB2.
* Mapthing 1105 has gone from being a swinging mace variant to a combination of chains and maces in a single unit, provided the number of "spokes" is greater than one.
* Mapthing 1105 has gone from being a swinging chain variant to a vertical spring-on-a-ball-on-a-chain. Yellow by default, apply MTF_AMBUSH to turn into a red spring.
* Mapthing 1107 represents both spinning and swinging chains from prior versions of SRB2.
* Mapthing 1108 is completely untouched except to port over 2.1's functionality to the new backend.
* Mapthing 1109 is a Mario castle-level style firebar. This inverts the functionality of ML_EFFECT2 on the tagged linedef.
* Mapthing 1110 is a free slot should we want to implement another type of base-game mace.
* Mapthing 1111 is a custom mace. Use the linedef's frontside texture slots to identify a macetype mobjtype, then use the backside texture slots to identify a linktype mobjtype (defaults to MT_NULL if no backside).
****
Whooh. Requires new patch.dta for sprites.
* 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.
MI's unimportant code cleanup
Just removing a bunch of unused variables/function prototypes from the source code and similarly minor stuff, nothing here should change gameplay much (if at all).
See merge request !71
* 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.
Analog mode's camera is now x1.2 of your actual cam_dist setting,
instead of being strictly 192. "analog on" seems to reset this modifier
every once in a while, but "useranalog on" prevents this. The wiki
itself says that you should only change useranalog though, so it
shouldn't be too big of a deal.
Camera settings: distance from 128 to 160, height from 20 to 32, speed
from 0.25 to 0.3
Mouse sensitivity from 35 to 12
Default control setup is Mystic's proposed scheme from the New Player
Experiences topic (https://mb.srb2.org/showthread.php?t=42095)
Also, camera settings now save to config, and they no longer try to
reset back to the default at every chance it gets (you can die, start a
new game, or exit, all while still keeping your preferred setting)
* Fixed bug with the magnet shield homing attack and charability homing attack not properly updating the player's target/tracer.
* Made flashing of lockon/got flag icons slower.
* 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
* Swapped usage of player->spinitem to player->revitem for bullet type selection, since spinitem is used coming out of zoom tubes (which are universal).
* Switched the optional boolean for "bullet" in the Lua wrapper for P_LookForEnemies to be false by default.
* Allowed CA2_GUNSLINGER users to target Detons.
* Cleaned up some code here and there.
* CA2_MELEE/CA_TWINSPIN combination abilities (ground hit, somersalt) disabled.
* Enabled movement controls whilst using CA2_MELEE in the air.
* CA2_GUNSLINGER no longer requires charging. In exchange, it involves a cooldown in which you can't move.
* CA2_GUNSLINGER lock-on distance improved, and aiming allowance reduced to compensate.
* Lots of cleanup/gravflip allowances for homing/targeting code.
* Unrelated: Flickies now properly face the direction they're supposed to when getting knocked out of the egg capsule.
* Unrelated: Thok trail fades like spindash trail now.
* Unrelated: Using CA_HOMINGATTACK when nowhere near an enemy uncurls you.
* Mildly hacky proof of concept! Will de-hack later.
* Charge up your ability!
* You can only damage others if it's at full power.
* Fires directly at enemies/bosses when at full power. Does NOT aim at players.
* Fixed a major hack from when I SPR2ised NiGHTS by spawning in a null object.
* Made P_LookForEnemies better in preperation for the future.
* Changed some defaulting characteristics of P_GetMobjSprite2.
* Fixed CA_DOUBLEJUMP potentially counting as a float.
* Killed some extremely small boolean functions and replaced them with #defines.
* Melee now has a proper weightiness to it with a landing frame.
* If you have twinspin too, do a somersalt when running and hitting the melee button.
* If you have melee, go into the melee landing frame when twinspinning into the ground.
* PF_NIGHTSMODE is now CR_NIGHTSMODE as part of player->powers[pw_carry]. This is because it's mutually exclusive to every other "carry" type.
* PF_SUPERREADY is dead because it literally just checked for all 7 emeralds and 50 rings. That's it. You couldn't even appreciably alter its presence with Lua. That logic has been placed back in P_SuperReady.
* Speaking of, actively enforced not being able to be Super and NiGHTS at the same time.
* Also on that note - SPR2_TRNS is now the NiGHTS transformation. The Super transformation is (FF_SPR2SUPER|SPR2_TRNS).
* SPR2_NPAN is now SPR2_NSTN, since it matches Super Sonic's stun animation rather than the pain animation.
* Fixed a bunch of things where Super float was handled badly with 2AM brain.
* Fixed the R_ProjectSprite error going out of spr2names' bounds.
* Fixed order of FF's in dehackéd.
* Fixed that thing where Super Sonic was blue for 1 tic after transformation, and the life icon was a blue Super Sonic.
* Super sprites are now deliniated via an additional S_SUPER lump between S_START and S_END. Above are normal sprites, below are super sprites. Handled internally via FF_SPR2SUPER.
* Sprite2 numbers are now appropriately limited for the data type that stores them.
* SPR2_SPIN is now SPR2_ROLL, SPR2_DASH is now SPR2_SPIN and SPR2_PEEL is now SPR2_DASH. Makes more sense, right?
Monster Iestyn
