Stacking Rooms for Z Layer Debugging — Handmade Hero — Episode Guide

0:11On determining which systems impact many other systems, and solidifying them early on

2:45What Mike Acton had to say about the potential costliness of some game design decisions¹

7:43Recap our current situation and set the stage for solidifying Z

9:54handmade_world_mode.cpp: Make AddStandardRoom generate some stairs

15:59Run the game and traverse the offset stairs

16:31handmade_world_mode.cpp: Make PlayWorld generate more layers of rooms

17:18Run the game and see the multiple layers

18:14handmade_world_mode.cpp: Expand the TraversablePoint rectangles to fill the tiles and give them outlines

22:30handmade_render_group.cpp: Make PushRect multiply the Color by GlobalAlpha

22:51Run the game and see that we're already in pretty good shape, but need to more clearly specify Z

24:42handmade_world_mode.cpp: Make AddStandardRoom generate a hole in the ground

29:15Run the game and look down through the hole

30:01The snake just went up the stairs^α

30:24handmade_world_mode.cpp: Make UpdateAndRenderWorld draw the tiles green

31:37Run the game and consider the problem with drawing down so far

33:28handmade_world_mode.cpp: Make UpdateAndRenderWorld expand FadeBottomStartZ and FadeBottomEndZ

34:21Profiler: Note that BeginSim and UpdateAndRenderWorld are slow

38:28build.bat: Switch to -O2 find that we're now running at 60 FPS

39:59Profiler: Switch to the software renderer

41:01win32_handmade.cpp: Add more BEGIN_BLOCK and END_BLOCK pairs in Win32DisplayBufferInWindow

43:24handmade_world_mode.cpp: Add more BEGIN_BLOCK and END_BLOCK pairs in UpdateAndRenderWorld

44:12Run the game, view those timings and find that brains are not taking much time

45:04handmade_debug.cpp: Make DrawTopClocksList calculate and display a cumulative percentage

47:39handmade_debug.cpp: Make DrawTopClocksList call AddTooltip to draw this percentage

52:06Debugger: Step into DrawTopClocksList and find and investigate why our TextRect is not valid

54:56handmade_debug.cpp: Make DrawTopClocksList set TextRect off GetTextSize

55:59handmade_debug_ui.cpp: Introduce a version of GetTextSize that takes a v2 At

56:39handmade_debug_ui.cpp: Make AddTooltip draw a background

58:40handmade_debug.cpp: Make ToolTipTransform appear above everything

1:00:28Run the game and view our tooltip

1:02:48handmade_sim_region.cpp: Add a TIMED_BLOCK for SimUnpack in BeginSim

1:03:17handmade_sim_region.cpp: Make the PushArray calls in BeginSim do NoClear, and check that all of the necessary data is initialised

1:05:42Profiler: Find that BeginSim no longer takes so much time

1:06:52handmade_world_mode.cpp: Add BEGIN_BLOCK and END_BLOCK pairs for EntityRendering and EntityPhysics in UpdateAndRenderWorld

1:08:18Profiler: Find that EntityRendering is taking up the lion's share of the time

1:11:07handmade_world_mode.cpp: Move the EntityRendering block down to look only at the Piece list

1:11:36handmade_world_mode.cpp: Add BEGIN_BLOCK and END_BLOCK pairs for CollisionRendering, VectorClear, and HitpointRendering in UpdateAndRenderWorld

1:12:33Profiler: Find that CollisionRendering is the hog

1:12:47handmade_world_mode.cpp: Add BEGIN_BLOCK and END_BLOCK pairs for VolumeRendering and TraversableRendering in UpdateAndRenderWorld

1:13:34Profiler: Find that TraversableRendering is the most expensive

1:14:33handmade_world_mode.cpp: #if 0 the PushRectOutline calls for the traversables

1:15:35Consider turning on the optimiser just for these traversable drawing routines or blowing out the PushRect functions to be more explicit

1:16:19Q&A

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1:16:19Q&A

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1:16:19Q&A

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1:17:21cmuratori insobot Do you have a question for me?

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1:17:21cmuratori insobot Do you have a question for me?

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1:17:21cmuratori insobot Do you have a question for me?

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1:17:28insobot cmuratori: Duuuuude

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1:17:28insobot cmuratori: Duuuuude

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1:17:28insobot cmuratori: Duuuuude

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1:17:34serge_rgb How much longer does it take to build Handmade Hero with release optimizations?

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1:17:34serge_rgb How much longer does it take to build Handmade Hero with release optimizations?

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1:17:34serge_rgb How much longer does it take to build Handmade Hero with release optimizations?

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1:18:24Debugger: Demo the insufficiency of MSVC's debug information in optimised builds

1:22:59cubercaleb The switch is -Zo

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1:22:59cubercaleb The switch is -Zo

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1:22:59cubercaleb The switch is -Zo

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1:23:46themarsalla I missed the optimization due to buffering but I caught some stuff about the clear being bloated, but didn't catch what the fix was?

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1:23:46themarsalla I missed the optimization due to buffering but I caught some stuff about the clear being bloated, but didn't catch what the fix was?

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1:23:46themarsalla I missed the optimization due to buffering but I caught some stuff about the clear being bloated, but didn't catch what the fix was?

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1:24:13thesizik Far-away floors turning transparent don't look quite right since you can see through them

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1:24:13thesizik Far-away floors turning transparent don't look quite right since you can see through them

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1:24:13thesizik Far-away floors turning transparent don't look quite right since you can see through them

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1:24:43longboolean When peering down the hole at the more transparent layers, you can see characters through those ground layers. My guess is you would want to mix with a "fog color" instead of just making the tiles transparent?

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1:24:43longboolean When peering down the hole at the more transparent layers, you can see characters through those ground layers. My guess is you would want to mix with a "fog color" instead of just making the tiles transparent?

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1:24:43longboolean When peering down the hole at the more transparent layers, you can see characters through those ground layers. My guess is you would want to mix with a "fog color" instead of just making the tiles transparent?

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1:25:24elyasm Would LLVM work on Windows / Handmade Hero?

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1:25:24elyasm Would LLVM work on Windows / Handmade Hero?

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1:25:24elyasm Would LLVM work on Windows / Handmade Hero?

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1:27:18dandymcgee What editor is most similar to 4coder, and how long did it take to pick it up?

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1:27:18dandymcgee What editor is most similar to 4coder, and how long did it take to pick it up?

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1:27:18dandymcgee What editor is most similar to 4coder, and how long did it take to pick it up?

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1:28:22wellingguzman Having many levels of rooms and having entities in each level actively executing, wouldn't that be heavy / expensive? Or have you think in a performance solution or a level limitation?

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1:28:22wellingguzman Having many levels of rooms and having entities in each level actively executing, wouldn't that be heavy / expensive? Or have you think in a performance solution or a level limitation?

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1:28:22wellingguzman Having many levels of rooms and having entities in each level actively executing, wouldn't that be heavy / expensive? Or have you think in a performance solution or a level limitation?

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1:29:17longboolean Is there a way to tell the compiler to optimize just a particular section of the code? If not, how would you work around that?

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1:29:17longboolean Is there a way to tell the compiler to optimize just a particular section of the code? If not, how would you work around that?

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1:29:17longboolean Is there a way to tell the compiler to optimize just a particular section of the code? If not, how would you work around that?

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1:31:07cubercaleb Clang++ is worse. Honestly, why can't the PDB just say "Hey, you are at this instruction? Okay, the value is in this register / address or whatever"?

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1:31:07cubercaleb Clang++ is worse. Honestly, why can't the PDB just say "Hey, you are at this instruction? Okay, the value is in this register / address or whatever"?

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1:31:07cubercaleb Clang++ is worse. Honestly, why can't the PDB just say "Hey, you are at this instruction? Okay, the value is in this register / address or whatever"?

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1:33:46Wind it down

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1:33:46Wind it down

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1:33:46Wind it down

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