Collectibles

SDPhysicsEngine/Sources/SDPhysicsEngine/GameScene.swift

@@ -38,6 +38,11 @@ extension GameScene: SDScene {
         objectMap[object.node] = object
         addChild(object.node)
     }
+
+    public func removeObject(_ object: SDObject) {
+        objectMap[object.node] = nil
+        object.removeFromParent()
+    }
 }
 
 extension GameScene: SKPhysicsContactDelegate {

SDPhysicsEngine/Sources/SDPhysicsEngine/Object/SDObject.swift

@@ -39,4 +39,8 @@ public class SDObject {
     public var physicsBody: SDPhysicsBody? {
         willSet { node.physicsBody = newValue?.body }
     }
+
+    func removeFromParent() {
+        node.removeFromParent()
+    }
 }

SDPhysicsEngine/Sources/SDPhysicsEngine/SDScene.swift

@@ -5,4 +5,5 @@ public protocol SDScene {
     var size: CGSize { get }
 
     func addObject(_ object: SDObject)
+    func removeObject(_ object: SDObject)
 }

star-dash/star-dash.xcodeproj/project.pbxproj

@@ -83,6 +83,8 @@
 		E64361132BA4C2CD003850FD /* PhysicsModule.swift in Sources */ = {isa = PBXBuildFile; fileRef = E643610D2BA4C2CC003850FD /* PhysicsModule.swift */; };
 		E64361142BA4C2CD003850FD /* CreationModule.swift in Sources */ = {isa = PBXBuildFile; fileRef = E643610E2BA4C2CC003850FD /* CreationModule.swift */; };
 		E64361152BA4C2CD003850FD /* GameBridge.swift in Sources */ = {isa = PBXBuildFile; fileRef = E643610F2BA4C2CC003850FD /* GameBridge.swift */; };
+		E69EE9322BAC6CBB00033AB5 /* GameInfo.swift in Sources */ = {isa = PBXBuildFile; fileRef = E69EE9312BAC6CBB00033AB5 /* GameInfo.swift */; };
+		E69EE9342BAC6CC300033AB5 /* OverlayInfo.swift in Sources */ = {isa = PBXBuildFile; fileRef = E69EE9332BAC6CC300033AB5 /* OverlayInfo.swift */; };
 		E6A011172BA5F4AD006904D9 /* EntitySyncInterface.swift in Sources */ = {isa = PBXBuildFile; fileRef = E6A011162BA5F4AD006904D9 /* EntitySyncInterface.swift */; };
 		E6A745162BA057040080C1BE /* MTKRenderer.swift in Sources */ = {isa = PBXBuildFile; fileRef = E6A745112BA057040080C1BE /* MTKRenderer.swift */; };
 		E6A745172BA057040080C1BE /* ControlView.swift in Sources */ = {isa = PBXBuildFile; fileRef = E6A745122BA057040080C1BE /* ControlView.swift */; };
@@ -208,6 +210,8 @@
 		E643610D2BA4C2CC003850FD /* PhysicsModule.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PhysicsModule.swift; sourceTree = "<group>"; };
 		E643610E2BA4C2CC003850FD /* CreationModule.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CreationModule.swift; sourceTree = "<group>"; };
 		E643610F2BA4C2CC003850FD /* GameBridge.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = GameBridge.swift; sourceTree = "<group>"; };
+		E69EE9312BAC6CBB00033AB5 /* GameInfo.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = GameInfo.swift; sourceTree = "<group>"; };
+		E69EE9332BAC6CC300033AB5 /* OverlayInfo.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = OverlayInfo.swift; sourceTree = "<group>"; };
 		E6A011162BA5F4AD006904D9 /* EntitySyncInterface.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = EntitySyncInterface.swift; sourceTree = "<group>"; };
 		E6A745112BA057040080C1BE /* MTKRenderer.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = MTKRenderer.swift; sourceTree = "<group>"; };
 		E6A745122BA057040080C1BE /* ControlView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ControlView.swift; sourceTree = "<group>"; };
@@ -342,6 +346,7 @@
 				4E630F282B9F7EC20008F887 /* Components */,
 				4E630F252B9F7E500008F887 /* Entities */,
 				46B8C0992BA328D900498705 /* GameEngine.swift */,
+				E69EE9312BAC6CBB00033AB5 /* GameInfo.swift */,
 			);
 			path = GameEngine;
 			sourceTree = "<group>";
@@ -527,6 +532,7 @@
 		E6A745102BA057040080C1BE /* Rendering */ = {
 			isa = PBXGroup;
 			children = (
+				E69EE9332BAC6CC300033AB5 /* OverlayInfo.swift */,
 				E6B5509F2BA15D2000DC7396 /* MTKRenderer */,
 				E6A745132BA057040080C1BE /* Renderer.swift */,
 				E6B0AAD02BAAE3DC009CB939 /* ViewDelegate.swift */,
@@ -719,6 +725,7 @@
 			files = (
 				46D418182BA5CD840091A38B /* Player+Collidable.swift in Sources */,
 				46D4181E2BA5D2620091A38B /* Monster+Collidable.swift in Sources */,
+				E69EE9342BAC6CC300033AB5 /* OverlayInfo.swift in Sources */,
 				E6B1DC902BA34A4800473563 /* SDPhysicsEngine in Sources */,
 				4E630F272B9F7E770008F887 /* Entity.swift in Sources */,
 				4E630F2C2B9F7F460008F887 /* Component.swift in Sources */,
@@ -762,6 +769,7 @@
 				E64361112BA4C2CD003850FD /* SyncModule.swift in Sources */,
 				E6A7451B2BA0C1890080C1BE /* PlayerView.swift in Sources */,
 				46D418282BA5D6800091A38B /* Floor+Collidable.swift in Sources */,
+				E69EE9322BAC6CBB00033AB5 /* GameInfo.swift in Sources */,
 				46D418222BA5D4E60091A38B /* Obstacle+Collidable.swift in Sources */,
 				E638B9CF2BAB3C5D00931CC2 /* TeleportEvent.swift in Sources */,
 				E6A745162BA057040080C1BE /* MTKRenderer.swift in Sources */,

star-dash/star-dash/Constants/PhysicsConstants.swift

@@ -21,15 +21,25 @@ struct PhysicsConstants {
     }
 
     struct CollisionMask {
-        static let player = CollisionCategory.max ^ CollisionCategory.player
+        static let player = CollisionCategory.max ^ CollisionCategory.player ^ CollisionCategory.collectible
         static let monster = CollisionCategory.player | CollisionCategory.tool
-        static let collectible = CollisionCategory.player
+        static let collectible = CollisionCategory.none
         static let obstacle = CollisionCategory.player | CollisionCategory.monster | CollisionMask.tool
         static let tool = CollisionCategory.max ^ CollisionCategory.collectible ^ CollisionCategory.tool
         static let wall = CollisionCategory.player | CollisionCategory.monster | CollisionCategory.tool
         static let floor = CollisionCategory.player | CollisionCategory.monster | CollisionCategory.tool
     }
 
+    struct ContactMask {
+        static let player = CollisionCategory.floor | CollisionCategory.collectible
+        static let monster = CollisionCategory.player
+        static let collectible = CollisionCategory.player
+        static let obstacle = CollisionCategory.none
+        static let tool = CollisionCategory.obstacle
+        static let wall = CollisionCategory.tool | CollisionCategory.player
+        static let floor = CollisionCategory.player
+    }
+
     struct Dimensions {
         // TODO: determine appropriate size for each
         static let player = CGSize(width: 60, height: 60)

star-dash/star-dash/GameBridge/GameBridge.swift

@@ -88,5 +88,13 @@ class GameBridge {
     }
 
     private func removeObject(from entityId: EntityId) {
+        guard let object = entitiesMap[entityId] else {
+            return
+        }
+
+        entitiesMap[entityId] = nil
+        objectsMap[object.id] = nil
+
+        self.scene.removeObject(object)
     }
 }

star-dash/star-dash/GameBridge/SyncModule/PhysicsModule.swift

@@ -38,6 +38,7 @@ class PhysicsModule: SyncModule {
         object.physicsBody = createRectanglePhysicsBody(physicsComponent: physicsComponent)
         object.physicsBody?.restitution = physicsComponent.restitution
         object.physicsBody?.isDynamic = physicsComponent.isDynamic
+        object.physicsBody?.affectedByGravity = physicsComponent.affectedByGravity
         object.physicsBody?.categoryBitMask = physicsComponent.categoryBitMask
         object.physicsBody?.contactTestMask = physicsComponent.contactTestMask
         object.physicsBody?.collisionBitMask = physicsComponent.collisionBitMask

star-dash/star-dash/GameBridge/SyncModule/SpriteModule.swift

@@ -31,7 +31,11 @@ extension SpriteModule: CreationModule {
         var newObject = SDObject()
         if let spriteComponent = entityManager.component(ofType: SpriteComponent.self, of: entity.id) {
             let spriteObject = SDSpriteObject(imageNamed: "PlayerRedNose")
-            spriteObject.size = CGSize(width: 100, height: 140)
+
+            if let size = spriteComponent.size {
+                spriteObject.size = size
+            }
+
             newObject = spriteObject
         }
 

star-dash/star-dash/GameEngine/Components/SpriteComponent.swift

@@ -12,16 +12,16 @@ class SpriteComponent: Component {
     // for sprite set will need to discuss how to rep animation
     var image: String
     var textureAtlas: String?
-    var size: CGSize
+    var size: CGSize?
 
-    init(id: ComponentId, entityId: EntityId, image: String, textureAtlas: String?, size: CGSize) {
+    init(id: ComponentId, entityId: EntityId, image: String, textureAtlas: String?, size: CGSize?) {
         self.image = image
         self.size = size
         self.textureAtlas = textureAtlas
         super.init(id: id, entityId: entityId)
     }
 
-    convenience init(entityId: EntityId, image: String, textureAtlas: String?, size: CGSize) {
+    convenience init(entityId: EntityId, image: String, textureAtlas: String?, size: CGSize?) {
         self.init(id: UUID(), entityId: entityId, image: image, textureAtlas: textureAtlas, size: size)
     }
 }

star-dash/star-dash/GameEngine/Entities/GameEntities/Collectible.swift

@@ -10,23 +10,39 @@ import Foundation
 class Collectible: Entity {
     let id: EntityId
     private let position: CGPoint
+    private let sprite: String
+    private let points: Int
+    private let size: CGSize
 
-    init(id: EntityId, position: CGPoint) {
+    init(id: EntityId, position: CGPoint, sprite: String, points: Int, size: CGSize) {
         self.id = id
         self.position = position
+        self.sprite = sprite
+        self.points = points
+        self.size = size
     }
 
-    convenience init(position: CGPoint) {
-        self.init(id: UUID(), position: position)
+    convenience init(position: CGPoint, sprite: String, points: Int, size: CGSize) {
+        self.init(id: UUID(), position: position, sprite: sprite, points: points, size: size)
     }
 
     func setUpAndAdd(to: EntityManager) {
         let positionComponent = PositionComponent(entityId: self.id, position: self.position, rotation: .zero)
-        let physicsComponent = PhysicsComponent(entityId: self.id, size: PhysicsConstants.Dimensions.collectible)
+        let physicsComponent = PhysicsComponent(entityId: self.id, size: self.size)
+        physicsComponent.affectedByGravity = false
+        physicsComponent.isDynamic = false
+        physicsComponent.categoryBitMask = PhysicsConstants.CollisionCategory.collectible
+        physicsComponent.contactTestMask = PhysicsConstants.ContactMask.collectible
         physicsComponent.collisionBitMask = PhysicsConstants.CollisionMask.collectible
+        let spriteComponent = SpriteComponent(entityId: self.id, image: sprite, textureAtlas: nil, size: size)
 
         to.add(entity: self)
         to.add(component: positionComponent)
         to.add(component: physicsComponent)
+        to.add(component: spriteComponent)
+    }
+
+    static func createCoinCollectible(position: CGPoint) -> Collectible {
+        Collectible(position: position, sprite: "Coin", points: 10, size: CGSize(width: 50, height: 50))
     }
 }

star-dash/star-dash/GameEngine/Entities/GameEntities/Floor.swift

@@ -27,7 +27,7 @@ class Floor: Entity {
         physicsComponent.restitution = 0.0
         physicsComponent.isDynamic = false
         physicsComponent.categoryBitMask = PhysicsConstants.CollisionCategory.floor
-        physicsComponent.contactTestMask = PhysicsConstants.CollisionCategory.player
+        physicsComponent.contactTestMask = PhysicsConstants.ContactMask.floor
         physicsComponent.collisionBitMask = PhysicsConstants.CollisionMask.floor
 
         to.add(entity: self)

star-dash/star-dash/GameEngine/Entities/GameEntities/Player.swift

@@ -30,11 +30,16 @@ class Player: Entity {
         let healthComponent = HealthComponent(entityId: self.id, health: GameConstants.InitialHealth.player)
         let physicsComponent = PhysicsComponent(entityId: self.id, size: PhysicsConstants.Dimensions.player)
         physicsComponent.categoryBitMask = PhysicsConstants.CollisionCategory.player
-        physicsComponent.contactTestMask = PhysicsConstants.CollisionCategory.floor
+        physicsComponent.contactTestMask = PhysicsConstants.ContactMask.player
         physicsComponent.collisionBitMask = PhysicsConstants.CollisionMask.player
         physicsComponent.affectedByGravity = true
         physicsComponent.restitution = 0.0
-        let spriteComponent = SpriteComponent(entityId: self.id, image: "", textureAtlas: "", size: .zero)
+        let spriteComponent = SpriteComponent(
+            entityId: self.id,
+            image: "PlayerRedNose",
+            textureAtlas: "",
+            size: CGSize(width: 100, height: 140)
+        )
         let scoreComponent = ScoreComponent(entityId: self.id, score: 0)
 
         to.add(entity: self)

star-dash/star-dash/GameEngine/GameEngine.swift

@@ -20,6 +20,18 @@ class GameEngine {
         setUpSystems()
     }
 
+    func gameInfo() -> GameInfo? {
+        guard let scoreSystem = systemManager.system(ofType: ScoreSystem.self),
+              let playerEntityId = entityManager.playerEntityId(),
+              let score = scoreSystem.score(of: playerEntityId) else {
+            return nil
+        }
+
+        return GameInfo(
+            playerScore: score
+        )
+    }
+
     func update(by deltaTime: TimeInterval) {
         systemManager.update(by: deltaTime)
         eventManager.executeAll(on: self)
@@ -57,6 +69,7 @@ class GameEngine {
     private func setUpSystems() {
         systemManager.add(PositionSystem(entityManager, dispatcher: self))
         systemManager.add(PhysicsSystem(entityManager, dispatcher: self))
+        systemManager.add(ScoreSystem(entityManager, dispatcher: self))
     }
 }
 

star-dash/star-dash/GameEngine/GameInfo.swift

@@ -0,0 +1,3 @@
+struct GameInfo {
+    let playerScore: Int
+}

star-dash/star-dash/GameEngine/Systems/ScoreSystem.swift

@@ -18,6 +18,14 @@ class ScoreSystem: System {
         self.dispatcher = dispatcher
     }
 
+    func score(of entityId: EntityId) -> Int? {
+        guard let scoreComponent = getScoreComponent(of: entityId) else {
+            return nil
+        }
+
+        return scoreComponent.score
+    }
+
     func applyScoreChange(to entityId: EntityId, scoreChange: Int) {
         guard let scoreComponent = getScoreComponent(of: entityId) else {
             return

star-dash/star-dash/Rendering/MTKRenderer/MTKRenderer.swift

@@ -35,6 +35,10 @@ class MTKRenderer: NSObject, Renderer {
         super.init()
     }
 
+    func updateOverlay(overlayInfo: OverlayInfo) {
+        playerView?.updateOverlay(score: overlayInfo.score)
+    }
+
     /// Set ups the views for a single player game.
     func createSinglePlayerView(at superview: UIView) {
         let playerView = PlayerView(superview: superview, device: self.device, drawDelegate: self)

star-dash/star-dash/Rendering/MTKRenderer/OverlayView.swift

@@ -11,16 +11,21 @@ class OverlayView: UIView {
     let scoreLabel = UILabel()
 
     func setupSubviews() {
-        scoreLabel.text = "Score: 0"
         scoreLabel.numberOfLines = 1
         scoreLabel.translatesAutoresizingMaskIntoConstraints = false
-        scoreLabel.textColor = .white
+        scoreLabel.textColor = .black
         addSubview(scoreLabel)
 
         NSLayoutConstraint.activate([
             scoreLabel.topAnchor.constraint(equalTo: self.topAnchor, constant: margin),
             scoreLabel.trailingAnchor.constraint(equalTo: self.trailingAnchor, constant: -1 * margin),
             scoreLabel.leadingAnchor.constraint(greaterThanOrEqualTo: self.leadingAnchor, constant: margin)
         ])
+
+        update(score: 0)
+    }
+
+    func update(score: Int) {
+        scoreLabel.text = "Score: \(score)"
     }
 }

star-dash/star-dash/Rendering/MTKRenderer/PlayerView.swift

@@ -35,4 +35,8 @@ class PlayerView {
     func setControlViewDelegate(_ delegate: ControlViewDelegate) {
         controlView.controlViewDelegate = delegate
     }
+
+    func updateOverlay(score: Int) {
+        overlayView.update(score: score)
+    }
 }

star-dash/star-dash/Rendering/OverlayInfo.swift

@@ -0,0 +1,3 @@
+struct OverlayInfo {
+    let score: Int
+}

star-dash/star-dash/Rendering/Renderer.swift

@@ -4,5 +4,6 @@ import UIKit
  The `Renderer` protocol defines the requirements for an object responsible for rendering game objects onto a view.
  */
 protocol Renderer {
+    func updateOverlay(overlayInfo: OverlayInfo)
     func createSinglePlayerView(at rootView: UIView)
 }

star-dash/star-dash/ViewController.swift

@@ -57,6 +57,11 @@ class ViewController: UIViewController {
 
         let floor = Floor(position: CGPoint(x: scene.size.width / 2, y: scene.size.height / 2 - 400))
         floor.setUpAndAdd(to: entityManager)
+
+        let collectible = Collectible.createCoinCollectible(
+            position: CGPoint(x: scene.size.width / 2 + 30, y: scene.size.height / 2 - 100)
+        )
+        collectible.setUpAndAdd(to: entityManager)
     }
 }
 
@@ -66,6 +71,14 @@ extension ViewController: SDSceneDelegate {
         gameBridge?.syncToEntities()
         gameEngine?.update(by: deltaTime)
         gameBridge?.syncFromEntities()
+
+        guard let gameInfo = gameEngine?.gameInfo() else {
+            return
+        }
+
+        renderer?.updateOverlay(overlayInfo: OverlayInfo(
+            score: gameInfo.playerScore
+        ))
     }
 
     func contactOccured(objectA: SDObject, objectB: SDObject, contactPoint: CGPoint) {