Folding Plastic Table

Content.Shared/_NF/Foldable/FoldableFixtureComponent.cs

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+namespace Content.Shared._NF.Foldable.Systems;
+
+[RegisterComponent]
+public sealed partial class FoldableFixtureComponent : Component
+{
+    [DataField(required: true)]
+    public List<string> FoldedFixtures;
+    [DataField(required: true)]
+    public List<string> UnfoldedFixtures;
+}

Content.Shared/_NF/Foldable/FoldableFixtureSystem.cs

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+using Content.Shared.Foldable;
+using Robust.Shared.Physics.Systems;
+
+namespace Content.Shared._NF.Foldable.Systems;
+
+public sealed class FoldableFixtureSystem : EntitySystem
+{
+    [Dependency] private readonly FixtureSystem _fixtures = default!;
+    [Dependency] private readonly SharedPhysicsSystem _physics = default!;
+
+    public override void Initialize()
+    {
+        SubscribeLocalEvent<FoldableFixtureComponent, MapInitEvent>(OnMapInit);
+        SubscribeLocalEvent<FoldableFixtureComponent, FoldedEvent>(OnFolded);
+    }
+
+    private void OnMapInit(EntityUid uid, FoldableFixtureComponent component, MapInitEvent args)
+    {
+        if (TryComp<FoldableComponent>(uid, out var foldable))
+            SetFoldedFixtures(uid, foldable.IsFolded, component);
+    }
+
+    private void OnFolded(EntityUid uid, FoldableFixtureComponent? component, ref FoldedEvent args)
+    {
+        SetFoldedFixtures(uid, args.IsFolded, component);
+    }
+
+    // Sets all relevant fixtures for the entity to an appropriate hard/soft state.
+    private void SetFoldedFixtures(EntityUid uid, bool isFolded, FoldableFixtureComponent? component)
+    {
+        if (!Resolve(uid, ref component))
+            return;
+
+        if (isFolded)
+        {
+            SetAllFixtureHardness(uid, component.FoldedFixtures, true);
+            SetAllFixtureHardness(uid, component.UnfoldedFixtures, false);
+        }
+        else
+        {
+            SetAllFixtureHardness(uid, component.FoldedFixtures, false);
+            SetAllFixtureHardness(uid, component.UnfoldedFixtures, true);
+        }
+    }
+
+    // Sets all fixtures on an entity in a list to either be hard or soft.
+    void SetAllFixtureHardness(EntityUid uid, List<string> fixtures, bool hard)
+    {
+        foreach (var fixName in fixtures)
+        {
+            var fixture = _fixtures.GetFixtureOrNull(uid, fixName);
+            if (fixture != null)
+                _physics.SetHard(uid, fixture, hard);
+        }
+    }
+}

Resources/Prototypes/_NF/Entities/Structures/Furniture/tables.yml

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+
+- type: entity
+  parent: BaseDeployFoldable
+  id: TableFolding
+  name: folding table
+  description: If you carry six of these you become the coolest kid at church.
+  components:
+  # Table bits
+  - type: SpriteFade
+  - type: Clickable
+  - type: InteractionOutline
+  - type: Climbable # Pointless without player-table collision, but I'll keep it
+  - type: GlassTable
+    climberDamage:
+      types:
+        Blunt: 15
+    tableDamage:
+      types:
+        Blunt: 25
+    tableMassLimit: 60
+  - type: PlaceableSurface
+  - type: Physics
+    bodyType: Dynamic
+    fixedRotation: true
+  - type: Pullable
+  - type: Fixtures
+    fixtures:
+      table:
+        shape:
+          !type:PhysShapeAabb
+          bounds: "-0.4,-0.4,0.4,0.4"
+        density: 55
+        mask: # tables should collide with other tables
+        - TableMask
+        layer:
+        - TableLayer
+        hard: true
+      item:
+        shape:
+          !type:PhysShapeAabb
+          bounds: "-0.25,-0.25,0.25,0.25"
+        density: 20
+        mask:
+        - ItemMask
+        restitution: 0.3  # fite me
+        friction: 0.2
+  - type: Bonkable
+    bonkDamage:
+      types:
+        Blunt: 4
+    bonkSound: !type:SoundCollectionSpecifier
+      collection: TrayHit
+  - type: FootstepModifier
+    footstepSoundCollection:
+      collection: FootstepHull
+  # Item bits
+  - type: MovedByPressure
+  - type: Item
+    size: Huge
+  - type: Sprite
+    sprite: _NF/Structures/Furniture/folding_table.rsi
+    layers:
+    - state: folding
+      map: ["unfoldedLayer"]
+    - state: folding_folded
+      map: ["foldedLayer"]
+      visible: false
+    noRot: true
+  - type: Appearance
+  - type: MeleeWeapon
+    damage:
+      types:
+        Blunt: 8
+    soundHit:
+      collection: MetalThud
+  - type: Damageable
+    damageContainer: StructuralInorganic
+    damageModifierSet: Metallic
+  - type: Destructible
+    thresholds:
+    - trigger:
+        !type:DamageTrigger
+        damage: 15
+      behaviors:
+        - !type:DoActsBehavior
+          acts: [ "Destruction" ]
+        - !type:PlaySoundBehavior
+          sound:
+            collection: MetalBreak
+    - trigger:
+        !type:DamageTrigger
+        damage: 5
+      behaviors:
+      - !type:PlaySoundBehavior
+        sound:
+          collection: MetalBreak
+      - !type:SpawnEntitiesBehavior
+        spawn:
+          SheetPlastic1:
+            min: 1
+            max: 1
+      - !type:DoActsBehavior
+        acts: [ "Destruction" ]
+  - type: StaticPrice
+    price: 20
+  - type: Construction
+    graph: TableFoldingGraph
+    node: TableFolding
+  - type: DamageExaminable
+  - type: FoldableFixture
+    foldedFixtures:
+    - item
+    unfoldedFixtures:
+    - table
+
+- type: entity
+  parent: TableFolding
+  id: TableFoldingSpawnFolded
+  suffix: folded
+  components:
+  - type: InteractionOutline
+  - type: Physics
+    bodyType: Dynamic
+  - type: Foldable
+    folded: true

Resources/Prototypes/_NF/Recipes/Construction/Graphs/furniture/folding_table.yml

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+- type: constructionGraph
+  id: TableFoldingGraph
+  start: start
+  graph:
+    - node: start
+      actions:
+        - !type:DestroyEntity {}
+      edges:
+
+        - to: TableFolding
+          steps:
+            - material: Plastic
+              amount: 4
+              doAfter: 1
+            - material: MetalRod
+              amount: 4
+
+    - node: TableFolding
+      entity: TableFolding
+      edges:
+        - to: start
+          completed:
+            - !type:SpawnPrototype
+              prototype: SheetPlastic1
+              amount: 4
+            - !type:SpawnPrototype
+              prototype: PartRodMetal1
+              amount: 4
+          steps:
+            - tool: Screwing
+              doAfter: 2

Resources/Prototypes/_NF/Recipes/Construction/furniture.yml

@@ -1126,3 +1126,21 @@
   canBuildInImpassable: false
   conditions:
     - !type:TileNotBlocked
+
+# Folding table
+- type: construction
+  id: TableFolding
+  name: folding table
+  description: A table, but foldable.
+  graph: TableFoldingGraph
+  startNode: start
+  targetNode: TableFolding
+  category: construction-category-furniture
+  icon:
+    sprite: _NF/Structures/Furniture/folding_table.rsi
+    state: folding
+  objectType: Structure
+  placementMode: SnapgridCenter
+  canBuildInImpassable: false
+  conditions:
+    - !type:TileNotBlocked

Resources/Textures/_NF/Structures/Furniture/folding_table.rsi/meta.json

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+{
+    "version": 1,
+    "license": "CC-BY-SA-3.0",
+    "copyright": "Taken from Beestation at commit https://github.com/BeeStation/BeeStation-Hornet/commit/9a035f9365bcb74ac40fbe79c74c43c4c80cc1e4",
+    "size": {
+        "x": 32,
+        "y": 32
+    },
+    "states": [
+        {
+            "name": "folding"
+        },
+        {
+            "name": "folding_folded"
+        },
+        {
+            "name": "inhand-left",
+			"directions": 4
+        },
+        {
+            "name": "inhand-right",
+			"directions": 4
+        }
+    ]
+}