Liquid plasma floor entity (#18957)

Resources/Prototypes/Entities/Tiles/lava.yml

@@ -1,6 +1,7 @@
 - type: entity
   id: FloorLavaEntity
-  name: lava floor
+  name: lava
+  description: Don't jump in. It's not worth it, no matter how funny it is.
   placement:
     mode: SnapgridCenter
     snap:

Resources/Prototypes/Entities/Tiles/liquid_plasma.yml

@@ -0,0 +1,49 @@
+- type: entity
+  id: FloorLiquidPlasmaEntity
+  name: liquid plasma
+  description: Sweet, expensive nectar. Don't consume.
+  placement:
+    mode: SnapgridCenter
+    snap:
+    - Wall
+  components:
+  - type: StepTrigger
+    requiredTriggeredSpeed: 0
+    intersectRatio: 0.1
+    blacklist:
+      tags:
+      - Catwalk
+  - type: Lava
+  - type: Transform
+    anchored: true
+  - type: SyncSprite
+  - type: Clickable
+  - type: Sprite
+    sprite: Tiles/Planet/liquid_plasma.rsi
+    drawdepth: BelowFloor
+    layers:
+    - state: plasma
+      shader: unshaded
+  - type: Icon
+    sprite: Tiles/Planet/liquid_plasma.rsi
+    state: full
+  - type: IconSmooth
+    key: floor
+    base: plasma
+  - type: Physics
+    bodyType: Static
+  - type: Fixtures
+    fixtures:
+      fix1:
+        shape:
+          !type:PhysShapeAabb
+          bounds: "-0.5,-0.5,0.5,0.5"
+        layer:
+        - SlipLayer
+        mask:
+        - ItemMask
+        density: 1000
+        hard: false
+  - type: Tag
+    tags:
+    - HideContextMenu

Resources/Prototypes/Entities/Tiles/water.yml

@@ -1,6 +1,7 @@
 - type: entity
   id: FloorWaterEntity
   name: water
+  description: A real thirst quencher.
   placement:
     mode: SnapgridCenter
     snap:

Resources/Prototypes/Procedural/biome_templates.yml

@@ -439,6 +439,20 @@
         seed: 0
         frequency: 0.02
         fractalType: None
+    # Liquid plasma rivers. Ice moon baby
+    - !type:BiomeEntityLayer
+      allowedTiles:
+      - FloorSnow
+      threshold: 0.95
+      noise:
+        seed: 3
+        noiseType: OpenSimplex2
+        frequency: 0.003
+        lacunarity: 1.50
+        fractalType: Ridged
+        octaves: 1
+      entities:
+      - FloorLiquidPlasmaEntity
 
 # Caves
 - type: biomeTemplate