From 6127f89e78f81ea42d93bdc2afb0b206f4f0dd55 Mon Sep 17 00:00:00 2001
From: Aldin Duraki <62dual1bif@hft-stuttgart.de>
Date: Fri, 1 May 2020 15:28:47 +0200
Subject: [PATCH] impf. EntityManager

---
 GoldWars/GoldWars.xcodeproj/project.pbxproj |  4 +++
 GoldWars/GoldWars/EntityManager.swift       | 37 +++++++++++++++++++++
 2 files changed, 41 insertions(+)
 create mode 100644 GoldWars/GoldWars/EntityManager.swift

diff --git a/GoldWars/GoldWars.xcodeproj/project.pbxproj b/GoldWars/GoldWars.xcodeproj/project.pbxproj
index 66c4df2..e7014d4 100644
--- a/GoldWars/GoldWars.xcodeproj/project.pbxproj
+++ b/GoldWars/GoldWars.xcodeproj/project.pbxproj
@@ -18,6 +18,7 @@
 		110360F9244B101B008610AF /* GoldWarsUITests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 110360F8244B101B008610AF /* GoldWarsUITests.swift */; };
 		11036111244B3D6A008610AF /* MenuScene.sks in Resources */ = {isa = PBXBuildFile; fileRef = 11036110244B3D6A008610AF /* MenuScene.sks */; };
 		11036113244B3E30008610AF /* MenuScene.swift in Sources */ = {isa = PBXBuildFile; fileRef = 11036112244B3E30008610AF /* MenuScene.swift */; };
+		116060F7245C57D2004E5A36 /* EntityManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 116060F6245C57D2004E5A36 /* EntityManager.swift */; };
 		11738A3B24508F68004426F1 /* Unit.swift in Sources */ = {isa = PBXBuildFile; fileRef = 11738A3A24508F68004426F1 /* Unit.swift */; };
 		ABA03DA0244BD54F00A66916 /* Base.swift in Sources */ = {isa = PBXBuildFile; fileRef = ABA03D9F244BD54F00A66916 /* Base.swift */; };
 /* End PBXBuildFile section */
@@ -57,6 +58,7 @@
 		110360FA244B101B008610AF /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		11036110244B3D6A008610AF /* MenuScene.sks */ = {isa = PBXFileReference; lastKnownFileType = file.sks; path = MenuScene.sks; sourceTree = "<group>"; };
 		11036112244B3E30008610AF /* MenuScene.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MenuScene.swift; sourceTree = "<group>"; };
+		116060F6245C57D2004E5A36 /* EntityManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EntityManager.swift; sourceTree = "<group>"; };
 		11738A3A24508F68004426F1 /* Unit.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Unit.swift; sourceTree = "<group>"; };
 		ABA03D9F244BD54F00A66916 /* Base.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Base.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
@@ -123,6 +125,7 @@
 				110360DF244B101B008610AF /* Assets.xcassets */,
 				110360E1244B101B008610AF /* LaunchScreen.storyboard */,
 				110360E4244B101B008610AF /* Info.plist */,
+				116060F6245C57D2004E5A36 /* EntityManager.swift */,
 			);
 			path = GoldWars;
 			sourceTree = "<group>";
@@ -293,6 +296,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				110360D9244B101A008610AF /* GameScene.swift in Sources */,
+				116060F7245C57D2004E5A36 /* EntityManager.swift in Sources */,
 				11738A3B24508F68004426F1 /* Unit.swift in Sources */,
 				11036113244B3E30008610AF /* MenuScene.swift in Sources */,
 				ABA03DA0244BD54F00A66916 /* Base.swift in Sources */,
diff --git a/GoldWars/GoldWars/EntityManager.swift b/GoldWars/GoldWars/EntityManager.swift
new file mode 100644
index 0000000..cc19b3a
--- /dev/null
+++ b/GoldWars/GoldWars/EntityManager.swift
@@ -0,0 +1,37 @@
+//
+//  EntityManager.swift
+//  GoldWars
+//
+//  Created by Aldin Duraki on 01.05.20.
+//  Copyright © 2020 SP2. All rights reserved.
+//
+
+import Foundation
+import SpriteKit
+import GameplayKit
+
+class EntityManager {
+    
+    var entities = Set<GKEntity>()
+    let scene: SKScene
+    
+    init(scene: SKScene) {
+        self.scene = scene
+    }
+    
+    func add(_ entity: GKEntity) {
+        entities.insert(entity)
+        
+        if let spriteNode = entity.component(ofType: SpriteComponent.self)?.node {
+            scene.addChild(spriteNode)
+        }
+    }
+    
+    func remove(_ entity: GKEntity) {
+        if let spriteNode = entity.component(ofType: SpriteComponent.self)?.node {
+            spriteNode.removeFromParent()
+        }
+        
+        entities.remove(entity)
+    }
+}