Acid effects (#5466)

* acid

* balance

* nerf area effects

Resources/Prototypes/Chemistry/reactive_groups.yml

@@ -3,3 +3,6 @@
 
 - type: reactiveGroup
   id: Extinguish
+
+- type: reactiveGroup
+  id: Acidic

Resources/Prototypes/Entities/Mobs/NPCs/simplemob.yml

@@ -8,6 +8,7 @@
     groups:
       Flammable: [Touch]
       Extinguish: [Touch]
+      Acidic: [Touch, Ingestion]
   - type: UtilityAI
     behaviorSets:
     # - Clothing

Resources/Prototypes/Entities/Mobs/Species/human.yml

@@ -14,6 +14,7 @@
     groups:
       Flammable: [ Touch ]
       Extinguish: [ Touch ]
+      Acidic: [Touch, Ingestion]
     reactions:
     - reagents: [Water, SpaceCleaner]
       methods: [Touch]

Resources/Prototypes/Reagents/toxins.yml

@@ -32,7 +32,19 @@
     amount: -4
   - !type:PlantAdjustHealth
     amount: -8
-  # TODO MIRROR acid! hurt people on contact
+  reactiveEffects:
+    Acidic:
+      methods: [ Touch ]
+      effects:
+      - !type:HealthChange
+        scaleByQuantity: true
+        ignoreResistances: false
+        damage:
+          groups:
+            Caustic: 0.5
+      - !type:DoAction
+        probability: 0.3
+        action: HumanScream
   metabolisms:
     Poison:
       effects:
@@ -53,7 +65,19 @@
   color: "#5050ff"
   boilingPoint: 165
   meltingPoint: -87
-  # TODO MIRROR acid! hurt people on contact
+  reactiveEffects:
+    Acidic:
+      methods: [ Touch ]
+      effects:
+      - !type:HealthChange
+        scaleByQuantity: true
+        ignoreResistances: false
+        damage:
+          groups:
+            Caustic: 0.3
+      - !type:DoAction
+        probability: 0.2
+        action: HumanScream
   metabolisms:
     Poison:
       effects:
@@ -81,6 +105,19 @@
     amount: -2
   - !type:PlantAdjustHealth
     amount: -5
+  reactiveEffects:
+    Acidic:
+      methods: [ Touch ]
+      effects:
+      - !type:HealthChange
+        scaleByQuantity: true
+        ignoreResistances: false
+        damage:
+          groups:
+            Caustic: 0.1
+      - !type:DoAction
+        probability: 0.1
+        action: HumanScream
   metabolisms:
     Poison:
       effects: