Debugging the Cycle Check — Handmade Hero — Episode Guide

0:13Recap and set the stage for the day

1:19Run the game and show where we left things

2:06handmade_opengl.cpp: Make OpenGLRenderCommands() draw a black border around the render entries

8:21Run the game and see what our outlines are telling us

10:18handmade_opengl.cpp and handmade_render.cpp: Look through the collision group drawing routines and consider what could be wrong

12:15handmade_render.cpp: Rename RecursiveFromToBack() to RecursiveFrontToBack()

13:14handmade_render.cpp: Make RecursiveFrontToBack() set and check things in the correct order

14:20Run the game, see the cycles in our sort graph and investigate them

16:34handmade_world_mode.cpp: Make AddStandardRoom() only generate one room, run the game and see what happens with cycles

21:02handmade_opengl.cpp: Make OpenGLRenderCommands() draw collision groups lightly, then increase their alpha when they cycle

22:02Run the game and view the cycles

23:52Consider how we're doing the sorting in the first place

27:18Continue to investigate what's happening with the cycles

29:34handmade_render_group.cpp: Change where PushRectOutline() draws the four edge rectangles

31:03Blackboard: Drawing an outline out of non-intersecting rectangles

35:14Blackboard: What RectanglesIntersect() is currently doing

37:06handmade_render_group.cpp: Make PushRectOuline() add an epsilon into the equation

37:31Run the game, see that our outlines no longer cause a cycle, but that our hero still does

44:05handmade_debug.cpp: Make DEBUGEnd() draw one character, run the game and step through SortEntries

47:29handmade_render_group.cpp: Make GetBoundFor() use the SortBias

48:51Run the game and see that the debug text is now correctly sorted

51:07handmade_render.cpp: Look at IsInFrontOf()

54:07Blackboard: How IsInFrontOf() is working

55:30Run the game and illustrate the possibility that we may actually be in okay shape here

56:50handmade_world_mode.cpp: Toggle AddMonstar() and AddFamiliar() back on

58:02Q&A

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58:02Q&A

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58:02Q&A

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59:05insobot I couldn't drop that into The Witness, then. FailFish Really. Kappa?

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59:05insobot I couldn't drop that into The Witness, then. FailFish Really. Kappa?

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59:05insobot I couldn't drop that into The Witness, then. FailFish Really. Kappa?

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59:26blah238 It looks like the torso sprite occasionally draws on top of the head sprite, e.g. going up stairs

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59:26blah238 It looks like the torso sprite occasionally draws on top of the head sprite, e.g. going up stairs

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59:26blah238 It looks like the torso sprite occasionally draws on top of the head sprite, e.g. going up stairs

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1:00:01Blackboard: How the hero is constructed

1:01:18roam00010011 Does collision work between stairs and hero? Because body under and head above the stairs should not happen

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1:01:18roam00010011 Does collision work between stairs and hero? Because body under and head above the stairs should not happen

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1:01:18roam00010011 Does collision work between stairs and hero? Because body under and head above the stairs should not happen

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1:04:09bryanwwag Do you anticipate similar (if not identical) graph sorting would be used for any other game purpose (other than sprite sort)?

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1:04:09bryanwwag Do you anticipate similar (if not identical) graph sorting would be used for any other game purpose (other than sprite sort)?

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1:04:09bryanwwag Do you anticipate similar (if not identical) graph sorting would be used for any other game purpose (other than sprite sort)?

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1:05:40thesgmastr What language is this?

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1:05:40thesgmastr What language is this?

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1:05:40thesgmastr What language is this?

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1:06:40thesgmastr What are a few pieces of advice you would give to a new programmer?

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1:06:40thesgmastr What are a few pieces of advice you would give to a new programmer?

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1:06:40thesgmastr What are a few pieces of advice you would give to a new programmer?

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1:09:05xendash What is your estimate time it will take for you to finish Handmade Hero? And how different is it from the original estimate? (I assume you are about halfway)

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1:09:05xendash What is your estimate time it will take for you to finish Handmade Hero? And how different is it from the original estimate? (I assume you are about halfway)

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1:09:05xendash What is your estimate time it will take for you to finish Handmade Hero? And how different is it from the original estimate? (I assume you are about halfway)

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1:12:53roam00010011 Off-topic: At the start of the show, you said that every game programmer uses a dev setup similar to what we use: debug with Visual Studio, but code with a different editor. Why?

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1:12:53roam00010011 Off-topic: At the start of the show, you said that every game programmer uses a dev setup similar to what we use: debug with Visual Studio, but code with a different editor. Why?

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1:12:53roam00010011 Off-topic: At the start of the show, you said that every game programmer uses a dev setup similar to what we use: debug with Visual Studio, but code with a different editor. Why?

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1:15:05filiadelski Are you enjoying this project as a programming challenge or are your efforts mainly put into the teaching part of it?

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1:15:05filiadelski Are you enjoying this project as a programming challenge or are your efforts mainly put into the teaching part of it?

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1:15:05filiadelski Are you enjoying this project as a programming challenge or are your efforts mainly put into the teaching part of it?

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1:17:12melg1 What do you think about unit testing and test driven development applied to C++ code? Is this technique really useful and worth trying?

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1:17:12melg1 What do you think about unit testing and test driven development applied to C++ code? Is this technique really useful and worth trying?

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1:17:12melg1 What do you think about unit testing and test driven development applied to C++ code? Is this technique really useful and worth trying?

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1:26:42roam00010011 It's because you are the only programmer! When working in a team that will use your code, you need const

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1:26:42roam00010011 It's because you are the only programmer! When working in a team that will use your code, you need const

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1:26:42roam00010011 It's because you are the only programmer! When working in a team that will use your code, you need const

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1:29:24sssmcgrath I programmed in 100% const correct for 5 years. Never again

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1:29:24sssmcgrath I programmed in 100% const correct for 5 years. Never again

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1:29:24sssmcgrath I programmed in 100% const correct for 5 years. Never again

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1:29:41Close it on out

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1:29:41Close it on out

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1:29:41Close it on out

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