Price of food depends on its nutritional capacity (#11752)

Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>
fixes https://github.com/space-wizards/space-station-14/issues/11464

Content.Server/Cargo/Systems/PricingSystem.cs

@@ -2,9 +2,11 @@
 using Content.Server.Administration;
 using Content.Server.Body.Systems;
 using Content.Server.Cargo.Components;
+using Content.Server.Chemistry.Components.SolutionManager;
 using Content.Server.Stack;
 using Content.Shared.Administration;
 using Content.Shared.Body.Components;
+using Content.Shared.Chemistry.Reagent;
 using Content.Shared.Materials;
 using Content.Shared.MobState.Components;
 using Robust.Shared.Console;
@@ -22,6 +24,7 @@ public sealed class PricingSystem : EntitySystem
 {
     [Dependency] private readonly IConsoleHost _consoleHost = default!;
     [Dependency] private readonly IMapManager _mapManager = default!;
+    [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
 
     [Dependency] private readonly BodySystem _bodySystem = default!;
 
@@ -31,6 +34,7 @@ public sealed class PricingSystem : EntitySystem
         SubscribeLocalEvent<StaticPriceComponent, PriceCalculationEvent>(CalculateStaticPrice);
         SubscribeLocalEvent<StackPriceComponent, PriceCalculationEvent>(CalculateStackPrice);
         SubscribeLocalEvent<MobPriceComponent, PriceCalculationEvent>(CalculateMobPrice);
+        SubscribeLocalEvent<SolutionContainerManagerComponent, PriceCalculationEvent>(CalculateSolutionPrice);
 
         _consoleHost.RegisterCommand("appraisegrid",
             "Calculates the total value of the given grids.",
@@ -108,6 +112,22 @@ public sealed class PricingSystem : EntitySystem
         args.Price += stack.Count * component.Price;
     }
 
+    private void CalculateSolutionPrice(EntityUid uid, SolutionContainerManagerComponent component, ref PriceCalculationEvent args)
+    {
+        var price = 0f;
+
+        foreach (var solution in component.Solutions.Values)
+        {
+            foreach (var reagent in solution.Contents)
+            {
+                if (!_prototypeManager.TryIndex<ReagentPrototype>(reagent.ReagentId, out var reagentProto))
+                    continue;
+                price += (float) reagent.Quantity * reagentProto.PricePerUnit;
+            }
+        }
+        args.Price += price;
+    }
+
     private void CalculateStaticPrice(EntityUid uid, StaticPriceComponent component, ref PriceCalculationEvent args)
     {
         args.Price += component.Price;

Content.Shared/Chemistry/Reagent/ReagentPrototype.cs

@@ -84,6 +84,9 @@ namespace Content.Shared.Chemistry.Reagent
         [DataField("plantMetabolism", serverOnly: true)]
         public readonly List<ReagentEffect> PlantMetabolisms = new(0);
 
+        [DataField("pricePerUnit")]
+        public float PricePerUnit { get; }
+
         /// <summary>
         /// If the substance color is too dark we user a lighter version to make the text color readable when the user examines a solution.
         /// </summary>

Resources/Prototypes/Entities/Objects/Consumable/Food/food_base.yml

@@ -15,7 +15,7 @@
   - type: Sprite
     netsync: false
   - type: StaticPrice
-    price: 50
+    price: 0
 
 # This base type is used to cover all of the "obvious" things that should be doable to open-package food.
 # Practically this means injection.

Resources/Prototypes/Entities/Objects/Consumable/Food/snacks.yml

@@ -389,6 +389,8 @@
     - Trash
   - type: Recyclable
   - type: SpaceGarbage
+  - type: StaticPrice
+    price: 0
 
 - type: entity
   noSpawn: true

Resources/Prototypes/Reagents/Consumable/Food/food.yml

@@ -15,6 +15,7 @@
     amount: 1
   - !type:PlantAdjustHealth
     amount: 0.5
+  pricePerUnit: 2
 
 - type: reagent
   id: Vitamin
@@ -37,6 +38,7 @@
       - !type:ModifyBleedAmount
         amount: -0.25
       - !type:SatiateHunger #Numbers are balanced with this in mind + it helps limit how much healing you can get from food
+  pricePerUnit: 2.5
 
 - type: reagent
   id: Protein
@@ -57,4 +59,5 @@
       - !type:ModifyBloodLevel
         amount: 1 # weaker than iron but pretty good all things considered
       - !type:SatiateHunger
+  pricePerUnit: 3