Run-time Setting of Compile-time Variables — Handmade Hero — Episode Guide

0:08Recap

0:41Plan for today

1:43Review of last episode

2:03We will be extending the debug system so that we can compile in and out debug features more easily

3:21Optional compilation of ground chunk outlines

4:47Optional compilation of the particle fountain

5:07Why doesn't the particle system work?

6:50The fountain depends on outdated font code

7:00handmade.cpp: Go back to the head fountain^α

7:32The game overwrote our changes to the handmade config file. Let's prevent that from happening again

8:29Optional compilation of the particle grid

8:48Optional compilation of room outlines

9:28Fixing an outdated call to DrawRectangle

12:28Optional compilation of ground chunk checkerboard patterns

13:38Optional compilation of ground chunk reset on DLL reload

15:40Optional compilation of weird renderer buffer sizes

18:14Finding out the correct findstr syntax to list all "#if 0" occurrences

20:40Optional compilation of the behavior that makes the familiar follow the hero

21:29Optional compilation of bilinear lighting sampling

22:09Optional compilation of the room-based camera movement

22:30The room-based camera is broken. Let's fix it

28:10It's working now

29:08We have enough items for the moment

29:55We want to know the values of our compilation switches to write them out to handmade_config.h

30:57The debug_variable struct will keep the names of the switches, their values and their types

31:51Defining them using the DEBUG_VARIABLE_LISTING macro

33:32Writing the variables to the config file

36:00What parameters does _snprintf_s require?

40:00Stepping though the code that builds the contents of the config file

40:45Writing the file worked

40:59Printing the variable list instead of the old menu items

41:52Toggling debug variables

43:08Testing. It works

43:42The run-time exclusion of pieces of debug code has some nice properties...

45:10...the only small catch is it still takes too many steps to add a new switch

46:14We would like the listing to upgrade itself automatically after a new variable is added, but parsing the code just for that may be going overboard

47:05Let's keep the variable listings in a separate file

48:31Our radial menu should allow us to _not_ select something once it's active

50:00Coloring menu items depending on their value

51:08Testing. The menu should not select an action when we remain at its center

52:06The compilation process is a bit slow, but we can skip the compilation of the asset builder

53:23Q&A

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53:23Q&A

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53:23Q&A

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54:45Flederfalter I don't understand why a single if-statement would be expensive if we do it at runtime. Can you give an example?

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54:45Flederfalter I don't understand why a single if-statement would be expensive if we do it at runtime. Can you give an example?

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54:45Flederfalter I don't understand why a single if-statement would be expensive if we do it at runtime. Can you give an example?

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1:07:54elxenoaizd Why are we adding // b32 comment in the config file?

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1:07:54elxenoaizd Why are we adding // b32 comment in the config file?

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1:07:54elxenoaizd Why are we adding // b32 comment in the config file?

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1:08:30TheSizik Can you toggle the debug options while looping?

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1:08:30TheSizik Can you toggle the debug options while looping?

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1:08:30TheSizik Can you toggle the debug options while looping?

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1:09:41Separate out the mouse handling from the recorded input

1:11:31Prepare to try operating the debug UI while looping

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1:11:31Prepare to try operating the debug UI while looping

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1:11:31Prepare to try operating the debug UI while looping

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1:11:45Increase the debug menu radius in DrawDebugMainMenu()

1:12:13Try out the debug UI while looping

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1:12:13Try out the debug UI while looping

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1:12:13Try out the debug UI while looping

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1:13:06andsz_ You should add an optimization switch to the UI at some point

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1:13:06andsz_ You should add an optimization switch to the UI at some point

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1:13:06andsz_ You should add an optimization switch to the UI at some point

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1:14:02andsz_ Wouldn't -O2 optimize those dead branches out?

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1:14:02andsz_ Wouldn't -O2 optimize those dead branches out?

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1:14:02andsz_ Wouldn't -O2 optimize those dead branches out?

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1:14:41ingenero Could you have an option to either recompile or simply toggle an "if"? It seems like most of the time you would use the regular "if" so the change is instantaneous, but in extreme cases you could easily just do the recompile option

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1:14:41ingenero Could you have an option to either recompile or simply toggle an "if"? It seems like most of the time you would use the regular "if" so the change is instantaneous, but in extreme cases you could easily just do the recompile option

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1:14:41ingenero Could you have an option to either recompile or simply toggle an "if"? It seems like most of the time you would use the regular "if" so the change is instantaneous, but in extreme cases you could easily just do the recompile option

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1:16:25We are overtime

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1:16:25We are overtime

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1:16:25We are overtime

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