Add hunger and thirst (#363)

* Add hunger and thirst

Based on the SS13 systems.
Food (Nutriment) / Drink -> Stomach -> Hunger / Thirst

* Cleanup rebase

* Cleanup stuff that was prototyped

* Address feedback

Still need to add a statuseffects system in a separate branch

* More cleanup on nutrition

Fix Remie's feedback and also damage tick.

* Re-implement nutrition with master

* Updated to use the StatusEffectsUI update
* Removed all clientside components as they only receive the UI updates now
* Implemented PR feedback
* Had to make a slight adjustment to the chemistry SolutionComponent given it doesn't have an Owner, same with Solution

Still TODO:
* Metabolisation effects
* Change drink contents to alcohol / wine etc.
* Add items to the dispensers
* For transparent containers use RecalculateColor

Could probably genericise DrinkFoodContainer as well to be a temporary item dispenser

* Fix broken bottle parent

Content.Shared/GameObjects/Components/Chemistry/SolutionComponent.cs

@@ -17,7 +17,7 @@ namespace Content.Shared.GameObjects.Components.Chemistry
 #pragma warning restore 649
 
         [ViewVariables]
-        protected Solution _containedSolution;
+        protected Solution _containedSolution = new Solution();
         protected int _maxVolume;
         private SolutionCaps _capabilities;
 
@@ -68,14 +68,14 @@ namespace Content.Shared.GameObjects.Components.Chemistry
 
         /// <inheritdoc />
         public sealed override Type StateType => typeof(SolutionComponentState);
-        
+
         /// <inheritdoc />
         public override void ExposeData(ObjectSerializer serializer)
         {
             base.ExposeData(serializer);
 
             serializer.DataField(ref _maxVolume, "maxVol", 0);
-            serializer.DataField(ref _containedSolution, "contents", new Solution());
+            serializer.DataField(ref _containedSolution, "contents", _containedSolution);
             serializer.DataField(ref _capabilities, "caps", SolutionCaps.None);
         }
 

Content.Shared/GameObjects/Components/Mobs/SharedStatusEffectsComponent.cs

@@ -32,5 +32,7 @@ namespace Content.Shared.GameObjects.Components.Mobs
     public enum StatusEffect
     {
         Health,
+        Hunger,
+        Thirst,
     }
 }

Content.Shared/GameObjects/Components/Nutrition/SharedDrinkFoodContainerComponent.cs

@@ -0,0 +1,28 @@
+using System;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.GameObjects.Components.Nutrition
+{
+    public abstract class SharedDrinkFoodContainerComponent : Component
+    {
+    }
+
+    [NetSerializable, Serializable]
+    public enum DrinkFoodContainerVisualMode
+    {
+        /// <summary>
+        /// Discrete: 50 eggs in a carton -> down to 25, will show 12/12 until it gets below max
+        /// Rounded: 50 eggs in a carton -> down to 25, will round it to 6 of 12
+        /// </summary>
+        Discrete,
+        Rounded,
+    }
+
+    [NetSerializable, Serializable]
+    public enum DrinkFoodContainerVisuals
+    {
+        Capacity,
+        Current,
+    }
+}

Content.Shared/GameObjects/Components/Nutrition/SharedFoodComponent.cs

@@ -0,0 +1,16 @@
+using System;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.GameObjects.Components.Nutrition
+{
+    public class SharedFoodComponent
+    {
+        // TODO: Remove maybe? Add visualizer for food
+        [Serializable, NetSerializable]
+        public enum FoodVisuals
+        {
+            Visual,
+            MaxUses,
+        }
+    }
+}

Content.Shared/GameObjects/Components/Nutrition/SharedStomachComponent.cs

@@ -0,0 +1,12 @@
+using System;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.GameObjects.Components.Nutrition
+{
+
+    public class SharedStomachComponent : Component
+    {
+        public override string Name => "Stomach";
+    }
+}

Content.Shared/GameObjects/ContentNetIDs.cs

@@ -30,5 +30,6 @@
         public const uint COMBATMODE = 1025;
         public const uint STATUSEFFECTS = 1026;
         public const uint OVERLAYEFFECTS = 1027;
+        public const uint STOMACH = 1028;
     }
 }