Add coding to family 3

Sources/FirebladeECS/Family3.swift

@@ -46,6 +46,23 @@ public struct Requires3<A, B, C>: FamilyRequirementsManaging where A: Component,
     }
 }
 
+extension Requires3: FamilyEncoding where A: Encodable, B: Encodable, C: Encodable {
+    public static func encode(components: (A, B, C), into container: inout KeyedEncodingContainer<DynamicCodingKey>, using strategy: CodingStrategy) throws {
+        try container.encode(components.0, forKey: strategy.codingKey(for: A.self))
+        try container.encode(components.1, forKey: strategy.codingKey(for: B.self))
+        try container.encode(components.2, forKey: strategy.codingKey(for: C.self))
+    }
+}
+
+extension Requires3: FamilyDecoding where A: Decodable, B: Decodable, C: Decodable {
+    public static func decode(componentsIn container: KeyedDecodingContainer<DynamicCodingKey>, using strategy: CodingStrategy) throws -> (A, B, C) {
+        let compA = try container.decode(A.self, forKey: strategy.codingKey(for: A.self))
+        let compB = try container.decode(B.self, forKey: strategy.codingKey(for: B.self))
+        let compC = try container.decode(C.self, forKey: strategy.codingKey(for: C.self))
+        return Components(compA, compB, compC)
+    }
+}
+
 extension Nexus {
     public func family<A, B, C>(
         requiresAll componentA: A.Type,

Tests/FirebladeECSTests/Base.swift

@@ -18,14 +18,16 @@ class Name: Component {
     }
 }
 
-class Position: Component {
+final class Position: Component {
     var x: Int
     var y: Int
+
     init(x: Int, y: Int) {
         self.x = x
         self.y = y
     }
 }
+extension Position: Codable { }
 
 class Velocity: Component {
     var a: Float

Tests/FirebladeECSTests/FamilyCodingTests.swift

@@ -99,4 +99,60 @@ final class FamilyCodingTests: XCTestCase {
         try family.decodeMembers(from: jsonData, using: &jsonDecoder)
         XCTAssertEqual(family.count, 2)
     }
+
+    func testEncodeFamily3() throws {
+        let nexus = Nexus()
+
+        let family = nexus.family(requiresAll: MyComponent.self, YourComponent.self, Position.self)
+        family.createMember(with: (MyComponent(name: "My Name", flag: true), YourComponent(number: 1.23), Position(x: 1, y: 2)))
+        family.createMember(with: (MyComponent(name: "Your Name", flag: false), YourComponent(number: 3.45), Position(x: 3, y: 4)))
+        XCTAssertEqual(family.count, 2)
+
+        var jsonEncoder = JSONEncoder()
+        let encodedData = try family.encodeMembers(using: &jsonEncoder)
+        XCTAssertGreaterThanOrEqual(encodedData.count, 200)
+    }
+
+    func testDecodingFamily3() throws {
+        let jsonString = """
+        [
+          {
+            "MyComponent": {
+              "name": "My Name",
+              "flag": true
+            },
+            "YourComponent": {
+              "number": 1.23
+            },
+            "Position": {
+              "x": 1,
+              "y": 2
+            }
+          },
+          {
+            "MyComponent": {
+              "name": "Your Name",
+              "flag": false
+            },
+            "YourComponent": {
+              "number": 3.45
+            },
+            "Position": {
+              "x": 3,
+              "y": 4
+            }
+          }
+        ]
+        """
+
+        let jsonData = jsonString.data(using: .utf8)!
+
+        let nexus = Nexus()
+
+        let family = nexus.family(requiresAll: YourComponent.self, MyComponent.self, Position.self)
+        XCTAssertTrue(family.isEmpty)
+        var jsonDecoder = JSONDecoder()
+        try family.decodeMembers(from: jsonData, using: &jsonDecoder)
+        XCTAssertEqual(family.count, 2)
+    }
 }

Tests/FirebladeECSTests/XCTestManifests.swift

@@ -41,7 +41,9 @@ extension FamilyCodingTests {
     static let __allTests__FamilyCodingTests = [
         ("testDecodingFamily1", testDecodingFamily1),
         ("testDecodingFamily2", testDecodingFamily2),
+        ("testDecodingFamily3", testDecodingFamily3),
         ("testEncodeFamily2", testEncodeFamily2),
+        ("testEncodeFamily3", testEncodeFamily3),
         ("testEncodingFamily1", testEncodingFamily1)
     ]
 }