From 4acd12ddc52cef7480df3934566a35547f182981 Mon Sep 17 00:00:00 2001
From: 127-Z3R0 <81heti1bif@hft-stuttgart.de>
Date: Mon, 20 Apr 2020 14:21:55 +0200
Subject: [PATCH] add PhysicsBody for Drag&Drop Functionality

---
 GoldWars/GoldWars/Game/GameScene.swift | 51 ++++++++++++++++++++++++--
 1 file changed, 48 insertions(+), 3 deletions(-)

diff --git a/GoldWars/GoldWars/Game/GameScene.swift b/GoldWars/GoldWars/Game/GameScene.swift
index d8db3a2..4e508d0 100644
--- a/GoldWars/GoldWars/Game/GameScene.swift
+++ b/GoldWars/GoldWars/Game/GameScene.swift
@@ -9,26 +9,52 @@
 import SpriteKit
 import GameplayKit
 
-class GameScene: SKScene {
+class GameScene: SKScene, SKPhysicsContactDelegate {
     
     var entities = [GKEntity]()
     var graphs = [String : GKGraph]()
     var bases = [Base]()
     var player = [Base]()
+    var menu = SKSpriteNode()
+    
+    struct physicsBodyNumber {
+        static let basePlayer1Number: UInt32 = 0b1
+        static let basePlayer2Number: UInt32 = 0b10
+        static let base5Number: UInt32 = 0b101
+        static let base6Number: UInt32 = 0b110
+        static let base7Number: UInt32 = 0b111
+        static let emptyNumber: UInt32 = 0b100
+    }
 
     override func sceneDidLoad() {
+        
+        self.physicsWorld.gravity = CGVector(dx: 0, dy: 0)
+        self.physicsWorld.contactDelegate = self
 
         let maxX = self.size.width
         let midY = self.size.height / 2
 
         let basePlayer1 = Base(color: SKColor.red, position: CGPoint(x:  maxX * 0.1, y: midY), name: "Player1" )
         let basePlayer2 = Base(color: SKColor.blue, position: CGPoint(x: maxX * 0.9, y: midY), name: "Player2" )
+        basePlayer2.physicsBody = SKPhysicsBody(circleOfRadius: 50)
+        basePlayer2.physicsBody?.categoryBitMask = physicsBodyNumber.basePlayer2Number
+        basePlayer2.physicsBody?.collisionBitMask = physicsBodyNumber.emptyNumber
+        basePlayer2.physicsBody?.contactTestBitMask = physicsBodyNumber.base5Number & physicsBodyNumber.base6Number & physicsBodyNumber.base7Number
+        
+        menu = SKSpriteNode(color: SKColor.blue , size: CGSize(width: self.size.width * 0.4, height: self.size.height * 0.4))
+        menu.position = CGPoint(x: self.size.width * 0.5, y: self.size.height * 0.5)
 
         self.addChild(basePlayer1)
         self.addChild(basePlayer2)
         player.append(basePlayer1)
         player.append(basePlayer2)
         createVirginBases()
+        connectBases()
+        
+        bases[5].physicsBody = SKPhysicsBody(circleOfRadius: 50)
+        bases[5].physicsBody?.categoryBitMask = physicsBodyNumber.base5Number
+        bases[5].physicsBody?.collisionBitMask = physicsBodyNumber.emptyNumber
+        bases[5].physicsBody?.contactTestBitMask = physicsBodyNumber.basePlayer2Number
 
         // Spawn bases
         /*for _ in 1...15 {
@@ -164,15 +190,34 @@ class GameScene: SKScene {
     }
     
     override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
-        
+        for touch in touches {
+        print("hit")
+        let locationUser = touch.location(in: self)
+        if atPoint(locationUser) == menu {
+            menu.removeFromParent()
+            }
+        }
     }
     
     override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
-        
+        for touch in touches {
+            print("hit")
+            let locationUser = touch.location(in: self)
+            if atPoint(locationUser) == player[1]{
+                player[1].position = locationUser
+            }
+        }
     }
     
     override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
+        let maxX = self.size.width
+        let midY = self.size.height / 2
         
+        player[1].position = CGPoint(x:  maxX * 0.9, y: midY)
+    }
+    
+    func didBegin(_ contact: SKPhysicsContact) {
+        self.addChild(menu)
     }
     
     override func touchesCancelled(_ touches: Set<UITouch>, with event: UIEvent?) {