Sanity tweaks. (#4919)

* Sanity tweaks.

Reduces blood sanity damage from 0.5 to 0.25
Reduces remains sanity damage from 1 to 0.5
reduced human remains sanity damage from 5 to 2.5
Reduces passive insight gain from 0.05 to 0.025
Full Sanity raised from 150-300(This is what you start with.)
Insight passive gain reduced from 0.5 to 0.25
insight gain multiplier lowered from 1.0 to 0.5
Low-threshold of environment damage raised from 20-100. suggestions were to raise this from 20-50 before sanity cap was doubled, that would be 33% of your max. To keep that percentage it was also doubled to maintain a nice level. This is only the 'lowest' that environmental sanity features can take you.

* Update code/modules/sanity/sanity_mob.dm

* Update code/modules/sanity/sanity_mob.dm

* Update code/modules/sanity/sanity_mob.dm

* Update code/modules/sanity/sanity_mob.dm

* Update code/modules/sanity/sanity_mob.dm

* Update code/modules/sanity/sanity_mob.dm

code/game/objects/effects/decals/Cleanable/humans.dm

@@ -20,7 +20,7 @@ var/global/list/image/splatter_cache=list()
 	var/list/datum/disease2/disease/virus2 = list()
 	var/amount = 5
 	var/drytime
-	sanity_damage = 0.5
+	sanity_damage = 0.25
 	// List of are shoe prints we got
 	var/list/shoe_types = list()
 

code/game/objects/effects/decals/Cleanable/misc.dm

@@ -200,7 +200,7 @@
 	icon_state = "vomit_1"
 	random_icon_states = list("vomit_1", "vomit_2", "vomit_3", "vomit_4")
 	var/list/viruses = list()
-	sanity_damage = 1
+	sanity_damage = 0.5
 
 	Destroy()
 		. = ..()

code/game/objects/effects/decals/remains.dm

@@ -4,11 +4,11 @@
 	icon = 'icons/effects/blood.dmi'
 	icon_state = "remains"
 	anchored = 0
-	sanity_damage = 1
+	sanity_damage = 0.5
 
 /obj/item/remains/human
 	desc = "They look like human remains. Some poor soul expired here, a million miles from home."
-	sanity_damage = 5
+	sanity_damage = 2.5
 
 /obj/item/remains/xeno
 	desc = "They look like the remains of something... alien. They have a strange aura about them."

code/modules/sanity/sanity_mob.dm

@@ -53,7 +53,7 @@ GLOBAL_VAR_INIT(GLOBAL_INSIGHT_MOD, 1)
 	var/sanity_passive_gain_multiplier = 1
 	var/sanity_invulnerability = 0
 	var/level
-	var/max_level = 150 //Soj change to give a bit more breathing room
+	var/max_level = 200 //Soj change to make sanity less of a wacky rollercoaster.
 	var/level_change = 0
 
 	var/insight
@@ -75,7 +75,7 @@ GLOBAL_VAR_INIT(GLOBAL_INSIGHT_MOD, 1)
 	var/positive_prob_multiplier = 1
 	var/negative_prob = 30
 
-	var/view_damage_threshold = 20
+	var/view_damage_threshold = 35
 	var/environment_cap_coeff = 1 //How much we are affected by environmental cognitohazards. Multiplies the above threshold
 
 	var/say_time = 0