Deeper into GameplayKit with DemoBots

Transcription

1 Graphics and Games #WWDC15 Deeper into GameplayKit with DemoBots Session 609 Dave Addey Sample Code Engineer Dave Schaefgen Sample Code Engineer Michael DeWitt Sample Code Engineer 2015 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission from Apple.

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4 Download Sample Files

5 Recommended Sessions What s New in SpriteKit Mission Wednesday 10:00AM Introducing GameplayKit Mission Thursday 11:00AM

6 Demo

7 Tools and Technologies

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16 120pt 768pt

17 50pt 320pt (320/768) x 120 = 50pt

18 Optimizing Assets

19 Optimizing Assets Device ipad iphone 4s 5s iphone 6 iphone 6 Plus Mac

20 Optimizing Assets Device Scene Height ipad 768pt iphone 4s 5s 320pt iphone 6 326pt iphone 6 Plus 401pt Mac 1440pt

21 Optimizing Assets Device Scene Height Player Height ipad 768pt 120pt iphone 4s 5s 320pt 50pt iphone 6 326pt 50pt iphone 6 Plus 401pt 62.65pt Mac 1440pt 225pt

22 Optimizing Assets Device Scene Height Player Height 1x ipad 768pt 120pt 120px iphone 4s 5s 320pt 50pt - iphone 6 326pt 50pt - iphone 6 Plus 401pt 62.65pt - Mac 1440pt 225pt 225px

23 Optimizing Assets Device Scene Height Player Height 1x 2x ipad 768pt 120pt 120px 240px iphone 4s 5s 320pt 50pt - 100px iphone 6 326pt 50pt - 100px iphone 6 Plus 401pt 62.65pt - - Mac 1440pt 225pt 225px -

24 Optimizing Assets Device Scene Height Player Height 1x 2x 3x ipad 768pt 120pt 120px 240px - iphone 4s 5s 320pt 50pt - 100px - iphone 6 326pt 50pt - 100px - iphone 6 Plus 401pt 62.65pt px Mac 1440pt 225pt 225px - -

25 Optimizing Assets 100px 180px 120px 240px 225px

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29 Before SKCameraNode

30 Before SKCameraNode

31 With SKCameraNode

32 With SKCameraNode

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43 GKStateMachine PlayerBot state

44 GKStateMachine PlayerBot state Appear Player Controlled Hit Recharging

45 GKStateMachine PlayerBot state Appear Player Controlled Hit Recharging

46 GKStateMachine PlayerBot state Appear Player Controlled Hit Recharging

47 GKStateMachine PlayerBot state Appear Player Controlled Hit Recharging

48 GKStateMachine PlayerBot state Appear Player Controlled Hit Recharging

49 GKStateMachine PlayerBot state Appear Player Controlled Hit Recharging

50 GKStateMachine PlayerBot state Appear Player Controlled Hit Recharging

51 GKStateMachine PlayerBot state Appear Player Controlled Hit Recharging

52 GKStateMachine PlayerBot state Appear Player Controlled Hit Recharging

53 GKStateMachine PlayerBot state Appear Player Controlled Hit Recharging

54 GKStateMachine PlayerBot state Appear Player Controlled Hit Recharging

55 GKStateMachine PlayerBot state Appear Player Controlled Hit Recharging

56 GKStateMachine PlayerBot state Appear Player Controlled Hit Recharging

57 GKStateMachine PlayerBot state Appear Player Controlled Hit Recharging

58 GKStateMachine PlayerBot state Appear Player Controlled Hit Recharging

59 GKStateMachine PlayerBot state Appear Player Controlled Hit Recharging

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62 GKEntity and GKComponent

63 GKEntity and GKComponent PlayerBot

64 GKEntity and GKComponent PlayerBot GroundBot

65 GKEntity and GKComponent PlayerBot GroundBot FlyingBot

66 GKEntity and GKComponent Render Render Render Shadow Shadow Shadow PlayerBot GroundBot FlyingBot

67 GKEntity and GKComponent Render Render Render Shadow Shadow Shadow Animation Animation PlayerBot GroundBot FlyingBot Animation Physics Physics Physics Intelligence Intelligence Intelligence

68 GKEntity and GKComponent Render Render Render Shadow Shadow Shadow Animation Animation PlayerBot GroundBot FlyingBot Animation Physics Physics Physics Intelligence Intelligence Intelligence Input

69 GKEntity and GKComponent Render Render Render Shadow Shadow Shadow Animation Animation PlayerBot GroundBot FlyingBot Animation Physics Physics Physics Intelligence Intelligence Intelligence Input Input Input

70 GKEntity and GKComponent Render Render Render Shadow Shadow Shadow Animation Animation PlayerBot GroundBot FlyingBot Animation Physics Physics Physics Intelligence Intelligence Intelligence Input Input Input Agent Agent

71 GKEntity and GKComponent Render Render Render Shadow Shadow Shadow Animation Animation PlayerBot GroundBot FlyingBot Animation Physics Physics Physics Intelligence Intelligence Intelligence Input Input Input Agent Agent Agent

72 GKEntity and GKComponent Render Render Render Shadow Shadow Shadow Animation Animation PlayerBot GroundBot FlyingBot Animation Physics Physics Physics Intelligence Intelligence Intelligence Input Input Input Agent Agent Agent Rules Rules Rules

73 GKEntity and GKComponent Render Render Render Shadow Shadow Shadow Animation Animation PlayerBot GroundBot FlyingBot Animation Physics Physics Physics Intelligence Intelligence Intelligence Input Input Input Agent Agent Agent Rules Rules Rules Movement

74 GKEntity and GKComponent Render Render Render Shadow Shadow Shadow Animation Animation PlayerBot GroundBot FlyingBot Animation Physics Physics Physics Intelligence Intelligence Intelligence Input Input Input Agent Agent Agent Rules Rules Rules Movement Movement

75 GKEntity and GKComponent Render Render Render Shadow Shadow Shadow Animation Animation PlayerBot GroundBot FlyingBot Animation Physics Physics Physics Intelligence Intelligence Intelligence Input Input Input Agent Agent Agent Rules Rules Rules Movement Movement Movement

76 Logic and Gameplay Dave Schaefgen Sample Code Engineer

77 TaskBot Intelligence What s my motivation?

78 TaskBot Intelligence What s my motivation? Good Keep things working

79 TaskBot Intelligence What s my motivation? Good Keep things working Bad Attack the PlayerBot

80 TaskBot Intelligence What s my motivation? Good Keep things working Bad Attack the PlayerBot

81 TaskBot Intelligence What s my motivation? Good Keep things working Bad Attack the PlayerBot Turn other TaskBots

82 TaskBot Intelligence What s my motivation? Good Keep things working Bad Attack the PlayerBot Turn other TaskBots

83 TaskBot Intelligence What s my motivation? Good Keep things working Bad Attack the PlayerBot Turn other TaskBots Interrupt normal work

84 TaskBot Intelligence What s my motivation? Good Keep things working Bad Attack the PlayerBot Turn other TaskBots Interrupt normal work

85 TaskBot Intelligence Determining a mandate

86 TaskBot Intelligence Determining a mandate Fuzzy Logic via GKRuleSystem Characters are engaged Simpler to maintain Emergent behavior

87 Fuzzy Rules I m a little fuzzy

88 Fuzzy Rules I m a little fuzzy Model natural concepts Player is near Percentage of bad TaskBots is high

89 Fuzzy Rules I m a little fuzzy Model natural concepts Player is near Percentage of bad TaskBots is high Implemented via FuzzyTaskBotRule Subclass of GKRule fact is asserted if grade > 0 grade is a function of input

90 Fuzzy Rules Functions for proximity rules

91 Fuzzy Rules Functions for proximity rules 1 Far Medium Near 0.75 Grade factor / 3 factor * (2/3) factor Proximity

92 Fuzzy Rules Functions for proximity rules 1 Far Medium Near 0.75 Grade factor / 3 factor * (2/3) factor Proximity

93 Fuzzy Rules Functions for proximity rules 1 Far Medium Near 0.75 Grade factor / 3 factor * (2/3) factor Proximity

94 Fuzzy Rules Functions for proximity rules 1 Far Medium Near 0.75 Grade factor / 3 factor * (2/3) factor Proximity

95 Fuzzy Rules Functions for proximity rules 1 Far Medium Near 0.75 Grade factor / 3 factor * (2/3) factor Proximity

96 Fuzzy Rules Functions for proximity rules 1 Far Medium Near 0.75 Grade factor / 3 factor * (2/3) factor Proximity

97 Fuzzy Rules Making decisions % Bad TaskBots High % Bad TaskBots Medium % Bad TaskBots Low PlayerBot Near PlayerBot Medium PlayerBot Far Good TaskBot Near Good TaskBot Medium Good TaskBot Far

98 Fuzzy Rules Making decisions Evaluate the rules % Bad TaskBots High % Bad TaskBots Medium % Bad TaskBots Low PlayerBot Near PlayerBot Medium PlayerBot Far Good TaskBot Near Good TaskBot Medium Good TaskBot Far

99 Fuzzy Rules Making decisions Evaluate the rules Combine facts % Bad TaskBots High % Bad PlayerBot TaskBots Medium Good % Bad TaskBots Medium Low PlayerBot Near.30 PlayerBot Far.00 Good TaskBot Near.70 Good TaskBot Far.00

100 Fuzzy Rules Making decisions Evaluate the rules Combine facts rulesystem.minimumgradeforfacts(_:) % Bad TaskBots Medium % Bad TaskBots Low PlayerBot Near.30 PlayerBot Far.00 Good TaskBot Near.70 Good % PlayerBot Good Bad Hunt TaskBots PlayerBot Medium High Far

101 Fuzzy Rules Making decisions Evaluate the rules Combine facts rulesystem.minimumgradeforfacts(_:) Hunt PlayerBot.30

102 Fuzzy Rules Making decisions Evaluate the rules Hunt PlayerBot.30 Combine facts rulesystem.minimumgradeforfacts(_:) Hunt PlayerBot.45 Hunt TaskBot.00 Hunt TaskBot.20

103 Fuzzy Rules Making decisions Evaluate the rules Hunt PlayerBot.30 Combine facts rulesystem.minimumgradeforfacts(_:) Defuzzify rules Hunt PlayerBot.45 Hunt TaskBot.00 Hunt TaskBot.20

104 Fuzzy Rules Making decisions Evaluate the rules Combine facts rulesystem.minimumgradeforfacts(_:) Defuzzify rules Hunt PlayerBot Hunt TaskBot facts.reduce(0.0, combine: max)

105 Fuzzy Rules Making decisions Evaluate the rules Combine facts rulesystem.minimumgradeforfacts(_:) Defuzzify rules Hunt PlayerBot Hunt TaskBot facts.reduce(0.0, combine: max) Hunt the PlayerBot

106 TaskBot Intelligence OK, hunt the PlayerBot

107 TaskBot Intelligence OK, hunt the PlayerBot Get to the PlayerBot Often straightforward

108 TaskBot Intelligence OK, hunt the PlayerBot Get to the PlayerBot Often straightforward Obstacles present a challenge

109 TaskBot Intelligence OK, hunt the PlayerBot Get to the PlayerBot Often straightforward Obstacles present a challenge

110 TaskBot Intelligence OK, hunt the PlayerBot Get to the PlayerBot Often straightforward Obstacles present a challenge Pathfinding via GameplayKit Conveniences for SpriteKit Up and running quickly

111 TaskBot Intelligence OK, hunt the PlayerBot Get to the PlayerBot Often straightforward Obstacles present a challenge Pathfinding via GameplayKit Conveniences for SpriteKit Up and running quickly

112 Pathfinding A way around obstacles

113 Pathfinding A way around obstacles // Convert node physics bodies into GKPolygonObstacles. let obstacles = SKNode.obstaclesFromNodePhysicsBodies(self["//obstacles"])

114 Pathfinding A way around obstacles // Convert node physics bodies into GKPolygonObstacles. let obstacles = SKNode.obstaclesFromNodePhysicsBodies(self["//obstacles"]) // Construct a GKObstacleGraph. let graph = GKObstacleGraph(obstacles: obstacles, bufferradius: 30.0)

115 Pathfinding A way around obstacles // Convert node physics bodies into GKPolygonObstacles. let obstacles = SKNode.obstaclesFromNodePhysicsBodies(self["//obstacles"]) // Construct a GKObstacleGraph. let graph = GKObstacleGraph(obstacles: obstacles, bufferradius: 30.0) // Connect the TaskBot and PlayerBot via their positions. let startnode = graph.connectnodeusingobstacles(taskbot.position) let endnode = graph.connectnodeusingobstacles(playerbot.position)

116 Pathfinding A way around obstacles // Convert node physics bodies into GKPolygonObstacles. let obstacles = SKNode.obstaclesFromNodePhysicsBodies(self["//obstacles"]) // Construct a GKObstacleGraph. let graph = GKObstacleGraph(obstacles: obstacles, bufferradius: 30.0) // Connect the TaskBot and PlayerBot via their positions. let startnode = graph.connectnodeusingobstacles(taskbot.position) let endnode = graph.connectnodeusingobstacles(playerbot.position) // Find the path. let pathnodes = graph.findpathfromnode(startnode, tonode: endnode) as! [GKGraphNode2D]

117 TaskBot Intelligence All mapped out with no way to go

118 TaskBot Intelligence All mapped out with no way to go GKAgent2D to the rescue Configure a GKBehavior GKGoal provides path goals SpriteKit updates via delegate

119 Agent Behavior A smooth motivator

120 Agent Behavior A smooth motivator // Construct a path from the pathnodes. let path = GKPath(graphNodes: pathnodes, radius: 20.0)

121 Agent Behavior A smooth motivator // Construct a path from the pathnodes. let path = GKPath(graphNodes: pathnodes, radius: 20.0) // Create a new behavior. let behavior = GKBehavior()

122 Agent Behavior A smooth motivator // Construct a path from the pathnodes. let path = GKPath(graphNodes: pathnodes, radius: 20.0) // Create a new behavior. let behavior = GKBehavior() // Add goals to follow and stay on the path. let followpathgoal = GKGoal(toFollowPath: path, maxpredictiontime: 1.0, forward: true) behavior.setweight(1.0, forgoal: followpathgoal) let stayonpathgoal = GKGoal(toStayOnPath: path, maxpredictiontime: 1.0) behavior.setweight(1.0, forgoal: stayonpathgoal)

123 Agent Behavior Move along, please

124 Agent Behavior Move along, please // Assign the behavior to the agent. agent.behavior = behavior

125 Agent Behavior Move along, please // Assign the behavior to the agent. agent.behavior = behavior // Agent will update based on the behavior. // Its delegate is notified before and after changes.

126 Agent Behavior Move along, please // Assign the behavior to the agent. agent.behavior = behavior // Agent will update based on the behavior. // Its delegate is notified before and after changes. func agentwillupdate(agent: GKAgent) { // TIP: Update agent position to match node position in SpriteKit. }

127 Agent Behavior Move along, please // Assign the behavior to the agent. agent.behavior = behavior // Agent will update based on the behavior. // Its delegate is notified before and after changes. func agentwillupdate(agent: GKAgent) { // TIP: Update agent position to match node position in SpriteKit. } func agentdidupdate(agent: GKAgent) { // TIP: Update node position in SpriteKit to match agent position. }

128 TaskBot Intelligence Just the beginning

129 TaskBot Intelligence Just the beginning

130 Deployment and Delivery Michael DeWitt Sample Code Engineer

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132 Time to Fun

133 Initial Download

134 Initial Download This item is over 100MB. DemoBots will not download until you connect to Wi-Fi. Cancel OK

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138 6 MB

139 3 Bots 6 MB x

140 3 Bots 5 Actions 6 MB x x

141 In Your App 100 MB 1x 2x 3x

142 In Your App 100 MB 1x 2x 3x

143 App Slicing 100 MB ipad 2, ipad mini 1x 2x 3x iphone 6, iphone 5, iphone 4s, etina ipad one 6 Plus

144 App Slicing 100 MB ipad 2, ipad mini 1x iphone 6, iphone 5, iphone 4s, Retina ipad 2x iphone 6 Plus 3x

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148 16 Orientations

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154 App Slicing In DemoBots

155 App Slicing In DemoBots Texture atlases in asset catalogs Decrease the app size Improve gameplay with 16-way animations

156 On Demand Resources

157 Level Tags

158 Level Tags Level1 Level2 Level3

159 Level Tags Level1 Level2 Level3

160 Level Tags Level1 Level2 Level3

161 Level Tags Level01 Level1 Level2 Level3

162 Level Tags Level01 Level1 Level2 Level3

163 Level Tags Level1 Level2 Level3

164 Level Tags Level1 Level2 Level3

165 Level Tags Level1 Level2 Level3

166 Level Tags Level1 Level2 Level3

167 Level Tags Level1 Level2 Level3 FlyingBot

168 Level Tags Level1 Level2 Level3 GroundBot FlyingBot

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171 On Demand Resources In DemoBots

172 On Demand Resources In DemoBots Tag resources for later download Faster initial download time Keep overall storage footprint small

173 Present Next Scene

174 Present Next Scene In Local Storage Prepare Resources Present

175 Present Next Scene In Local Storage Needs Download Prepare Resources Present

176 Present Next Scene In Local Storage Needs Download Prepare Resources Download Error Present

177 Present Next Scene In Local Storage Needs Download Prepare Resources Download Error Present Purge

178 Present Next Scene In Local Storage Needs Download Prepare Resources Download Error Present Purge

179 SceneLoader

180 SceneLoader Initial Downloading Resources Download Failed Resources Available Preparing Resources Resources Ready State

181 SceneLoader Initial Downloading Resources Download Failed Resources Available Preparing Resources Resources Ready State

182 SceneLoader Preparing Resources

183 SceneLoader Preparing Resources override func isvalidnextstate(stateclass: AnyClass) -> Bool { switch stateclass { case is SceneLoaderResourcesReadyState.Type where sceneloader.scene!= nil: return true case is SceneLoaderResourcesAvailableState.Type: return true default: return false } }

184 SceneLoader Preparing Resources override func isvalidnextstate(stateclass: AnyClass) -> Bool { switch stateclass { case is SceneLoaderResourcesReadyState.Type where sceneloader.scene!= nil: return true case is SceneLoaderResourcesAvailableState.Type: return true default: return false } }

185 Final Tips

186 Final Tips Start downloading resources early Request Level2 as soon as Level1 begins

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189 Final Tips Start downloading resources early Request Level2 as soon as Level1 begins

190 Final Tips Start downloading resources early Request Level2 as soon as Level1 begins Modify the priority as needed bundleresourcerequest.loadingpriority = 0.8 operationqueue.qualityofservice =.UserInitiated

191 DemoBots

192 DemoBots Wanted Reduce number of animation frames Fine tune assets for each device Constrain camera to player and level Enforce character state transitions Share functionality between characters Complex situational decision making Elegant character navigation Smooth natural movement Add assets to improve gameplay Speed up initial download Model resource loading

193 DemoBots Wanted Reduce number of animation frames Fine tune assets for each device Constrain camera to player and level Enforce character state transitions Share functionality between characters Complex situational decision making Elegant character navigation Smooth natural movement Add assets to improve gameplay Speed up initial download Model resource loading Technology SpriteKit actions editor Texture atlases in asset catalogs SKCameraNode GKStateMachine GKEntity and GKComponent Fuzzy Logic with GKRuleSystem Pathfinding via GKObstacleGraph GKAgent2D, GKBehavior, and GKGoal Asset catalogs with App Slicing On Demand Resources GKStateMachine

194 Download Sample Files

195 More Information Documentation and Videos Apple Developer Forums Developer Technical Support General Inquiries Allan Schaffer, Game Technologies Evangelist

196 Related Sessions App Thinning in Xcode Presidio Wednesday 9:00AM What s New in SpriteKit Mission Wednesday 10:00AM Going Social with ReplayKit and Game Center Mission Wednesday 1:30PM Introducing On Demand Resources Pacific Heights Wednesday 4:30PM Introducing GameplayKit Mission Thursday 11:00AM

197 Labs GameplayKit Lab SpriteKit Lab GameplayKit Lab Graphics, Games, and Media Lab C Graphics, Games, and Media Lab C Graphics, Games, and Media Lab C Thursday 2:30PM Friday 9:00AM Friday 12:00PM

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