Blood Refactor (#6220)

* commit for branch swap

* branch swap again

* BLEED

* trying to clear up compile errors

* i killed everything when i tested this...

* restorealltheblood

* I REMOVED A THING

* well some progress

* stop bleeding

* got to swap branches again.

* grr

* damn bloodcolors

* Squash everything

* color....colourrrrrrr

* color....colourrrrrrr

* well now that updated the branch...

* Changes

* Some tweaks..before i upload something major

* COLOR NOT COLOUR...COLOR

YES I KNOW NOT EVERYONE SPELLS IT LIKE THAT BUT MY GOD

* Foot print shit..

blood coloring is going to be PAIN

* trying to handle some colors..maybe.

* blood colorsing sucks..di i mention this?

* commenting cod malfunctions.

* Changes

* lets try this

* Its too late at night.

* blargh

* woops

* almost works...

* progress..

* Branch swap

* figured out the overlay issue....

* BRANCH SWAP

* BLARGH

* fixed merged conflicts..expect something to be horribly wrong.

* bunch of changes

* Major Fixes

 - Moved blood_state and bloodiness var definitions to
 /obj/effect/decal/cleanable/blood as well as /cleanable/Crossed(), in
 order to make blood color work properly.
   - These were not used by any other decal, so it was pointless.
 - Tweaked human/add_blood so that hand_blood_color uses the correct
 value now.
 - Corrected gibs having the wrong basecolor.
 - Tracks of different blood colors will no longer combine weirdly, and
 will instead form seperate overlays.
   - This also fixes all of the issues with tracks in general and not
   updating correctly.
 - Fixed transfering blood in add_fingerprint; the old detective code
 didn't use the new format for add_blood().
 - Fixed xenomorphs causing runtimes in makeTrail(), and gave them their
 own trails. Sprites should probably be brightened later.
 - Fixed mobs occasionally randomly having their blood_DNA list reset.

* may have accidently removed shit.

* Mrowl

* stiff

water is not bleeding
lowered trail making threshold

* tweaks then conflcits

* weee

* indent

* some tweaks

* somefox tweaks.

* derp

* why won't they bleed!?

* BLEED DAMMIT

* Flattist comments and removes simple animale blood volume

Cause i cannot get it to work right.

* PRAISE FLATTIST

* Simple animals have a blood volume now

Bug with trail fixed.

* changes

* thanksmrowlmrowl

* exotice blood trails

* makesure is an exotic bleeder has a bleed rate first...

* FoxBoxTweakSox

* BoxVoxSoXFox

* ONE MORE THING

* animalsbleedreds

* Buh? BUGH!

* thisismescreaming

* removing note needed thing

* Color changes but the rabbit hole continues.

* This is not pretty....

* wot

* IT WORKS DAMMIT

* colors.

* germaphobic commit..

* we have to use the old system

* nothing to see here

* doubleprocarady

* try to fix mulebots

* mulebot fixed

* DONE

code/game/objects/structures/kitchen_spike.dm

@@ -82,9 +82,8 @@
 	playsound(loc, 'sound/effects/splat.ogg', 25, 1)
 	H.forceMove(loc)
 	H.emote("scream")
-	if(istype(H, /mob/living/carbon/human)) //So you don't get human blood when you spike a giant spidere
-		var/turf/simulated/pos = get_turf(H)
-		pos.add_blood_floor(H)
+	if(ishuman(H))
+		H.add_splatter_floor()
 	H.adjustBruteLoss(30)
 	H.buckled = src
 	H.dir = 2