The Sparse Entity System | Handmade Hero Episode Guide

0:14Introduce Milton¹

1:25"I have no idea how to say Sergio properly, let alone sexily"^α

6:22Recap and set the stage for the day

10:27Blackboard: Entity systems

14:47Blackboard: Current compositional approach

17:00Blackboard: Looking Glass's Act / React Model

21:28Blackboard: Problems with the AOS approach

24:45Blackboard: Sparse Entity System

27:06Blackboard: Inheritance

36:44Blackboard: When inheritance falls apart

40:25Blackboard: "Inheritance is compression"

46:47Blackboard: One epically huge entity struct

51:24Blackboard: Sparse matrix solver

52:37Blackboard: Summary of the plan

54:37Q&A

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54:37Q&A

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54:37Q&A

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55:36xdafal Can you talk about the dynamic dispatch?

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55:36xdafal Can you talk about the dynamic dispatch?

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55:36xdafal Can you talk about the dynamic dispatch?

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56:09Blackboard: Dispatch

1:00:53Blackboard: C++'s implementation of dynamic dispatch

1:07:30Blackboard: Why our system won't use dynamic dispatch

1:09:52popcorn Do you use the struct entry method in your current game?

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1:09:52popcorn Do you use the struct entry method in your current game?

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1:09:52popcorn Do you use the struct entry method in your current game?

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1:10:22sssmcgrath Have you seen my psuedo-hacked discriminated union inheritance system that I use in my game on stream? It's pretty cool

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1:10:22sssmcgrath Have you seen my psuedo-hacked discriminated union inheritance system that I use in my game on stream? It's pretty cool

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1:10:22sssmcgrath Have you seen my psuedo-hacked discriminated union inheritance system that I use in my game on stream? It's pretty cool

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1:10:52insofaras What made you choose this approach over an AoS style + storing indices of each separate component in the main entity struct?

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1:10:52insofaras What made you choose this approach over an AoS style + storing indices of each separate component in the main entity struct?

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1:10:52insofaras What made you choose this approach over an AoS style + storing indices of each separate component in the main entity struct?

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1:11:27dudeinbasement1 I missed it. What about the matrix [i,j]? I was confused there

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1:11:27dudeinbasement1 I missed it. What about the matrix [i,j]? I was confused there

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1:11:27dudeinbasement1 I missed it. What about the matrix [i,j]? I was confused there

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1:12:24parsnip_ How and where would you go about checking if a property existed on your 'mega-struct' whenever you want to do your operations? Would they all be null pointers if undefined?

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1:12:24parsnip_ How and where would you go about checking if a property existed on your 'mega-struct' whenever you want to do your operations? Would they all be null pointers if undefined?

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1:12:24parsnip_ How and where would you go about checking if a property existed on your 'mega-struct' whenever you want to do your operations? Would they all be null pointers if undefined?

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1:13:15tterrace What are you going to use to track which struct members have been touched / set back to null?

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1:13:15tterrace What are you going to use to track which struct members have been touched / set back to null?

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1:13:15tterrace What are you going to use to track which struct members have been touched / set back to null?

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1:14:13jessem3y3r What portions of this design could you foresee causing perf issues?

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1:14:13jessem3y3r What portions of this design could you foresee causing perf issues?

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1:14:13jessem3y3r What portions of this design could you foresee causing perf issues?

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1:19:02connor_rentz What are some alternatives to an entity system?

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1:19:02connor_rentz What are some alternatives to an entity system?

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1:19:02connor_rentz What are some alternatives to an entity system?

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1:21:01Mr4thDimention Are you already thinking of a backup plan for the entities and how you would transition to that system if you had to?

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1:21:01Mr4thDimention Are you already thinking of a backup plan for the entities and how you would transition to that system if you had to?

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1:21:01Mr4thDimention Are you already thinking of a backup plan for the entities and how you would transition to that system if you had to?

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1:22:27videogamestoohard Do you play Street Fighter? Who is your favorite character?

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1:22:27videogamestoohard Do you play Street Fighter? Who is your favorite character?

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1:22:27videogamestoohard Do you play Street Fighter? Who is your favorite character?

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1:23:54soysaucethekid Will the entity system include things such as particle effects?

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1:23:54soysaucethekid Will the entity system include things such as particle effects?

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1:23:54soysaucethekid Will the entity system include things such as particle effects?

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1:24:33xdafal Did you play Bomberman?

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1:24:33xdafal Did you play Bomberman?

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1:24:33xdafal Did you play Bomberman?

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1:24:37sssmcgrath You can't stand the Street Fighter pause but you liked the Mortal Kombat rotoscope?

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1:24:37sssmcgrath You can't stand the Street Fighter pause but you liked the Mortal Kombat rotoscope?

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1:24:37sssmcgrath You can't stand the Street Fighter pause but you liked the Mortal Kombat rotoscope?

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1:25:27demetrispanos Yeah that seems reasonable, it does seem unlikely that you'd get 300 entities needing 60FPS simulation except, as you say, bullet hell with bullets-as-entities rather than being their own optimized thing

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1:25:27demetrispanos Yeah that seems reasonable, it does seem unlikely that you'd get 300 entities needing 60FPS simulation except, as you say, bullet hell with bullets-as-entities rather than being their own optimized thing

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1:25:27demetrispanos Yeah that seems reasonable, it does seem unlikely that you'd get 300 entities needing 60FPS simulation except, as you say, bullet hell with bullets-as-entities rather than being their own optimized thing

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1:27:37Close down

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1:27:37Close down

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1:27:37Close down

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