Hit-Testing Boxes in 3D — Handmade Hero — Episode Guide

0:01Recap and set the stage for the day

🗩

0:01Recap and set the stage for the day

🗩

0:01Recap and set the stage for the day

🗩

0:30Run the game and point out the discombobulation of the cat artwork

🏃

0:30Run the game and point out the discombobulation of the cat artwork

🏃

0:30Run the game and point out the discombobulation of the cat artwork

🏃

1:33View the intro_art_v2.hha file in TabView

🗹

1:33View the intro_art_v2.hha file in TabView

🗹

1:33View the intro_art_v2.hha file in TabView

🗹

2:34The three things to do: 1. Use the alignment points; 2a. Get alignment data into our metadata file; 2b. Edit results in real time

🗩

2:34The three things to do: 1. Use the alignment points; 2a. Get alignment data into our metadata file; 2b. Edit results in real time

🗩

2:34The three things to do: 1. Use the alignment points; 2a. Get alignment data into our metadata file; 2b. Edit results in real time

🗩

5:42Set up to provide a way to edit placement points

🏃

5:42Set up to provide a way to edit placement points

🏃

5:42Set up to provide a way to edit placement points

🏃

7:27Consider reconceptualising the debug system as an integral part of the shipped game

🏃

7:27Consider reconceptualising the debug system as an integral part of the shipped game

🏃

7:27Consider reconceptualising the debug system as an integral part of the shipped game

🏃

9:19Set up to integrate the entity picking code into the game

12:47Begin to enable UpdateAndRenderEntities() to handle picking of all sprites

14:19Run the game to see our sprite debug visualisation

🏃

14:19Run the game to see our sprite debug visualisation

🏃

14:19Run the game to see our sprite debug visualisation

🏃

14:48Change UpdateAndRenderEntities() to use PushRectOutline() for the sprite debug visualisation

16:27Run the game to see the more sensible, if incorrectly scaled sprite debug visualisation

🏃

16:27Run the game to see the more sensible, if incorrectly scaled sprite debug visualisation

🏃

16:27Run the game to see the more sensible, if incorrectly scaled sprite debug visualisation

🏃

17:00Remove the EntityTransform.OffsetP addition from the WorldP computation in UpdateAndRenderEntities()

18:26Run the game to see the better positioned sprite debug visualisation

🏃

18:26Run the game to see the better positioned sprite debug visualisation

🏃

18:26Run the game to see the better positioned sprite debug visualisation

🏃

18:49Adjust the dimensions of the sprite debug visualisation

20:12Run the game to see the cat's sprites correctly visualised

🏃

20:12Run the game to see the cat's sprites correctly visualised

🏃

20:12Run the game to see the cat's sprites correctly visualised

🏃

20:47Create a sprite-picking mouse cursor in UpdateAndRenderEntities()

32:30Run the game to find that the sprite-picking mouse cursor sort of works

🏃

32:30Run the game to find that the sprite-picking mouse cursor sort of works

🏃

32:30Run the game to find that the sprite-picking mouse cursor sort of works

🏃

33:05Decouple the use of WorldP and Piece->Offset in UpdateAndRenderEntities() to correctly locate entities and render their debug visualisation

35:22Run the game to find that the sprite-picking is pretty close, but that the Y is wrong

🏃

35:22Run the game to find that the sprite-picking is pretty close, but that the Y is wrong

🏃

35:22Run the game to find that the sprite-picking is pretty close, but that the Y is wrong

🏃

36:42Enable UpdateAndRenderEntities() to draw a line connecting the cursor and the picked entity

40:10Run the game to see our cursor–entity connection, but with incorrect projection to the entity

🏃

40:10Run the game to see our cursor–entity connection, but with incorrect projection to the entity

🏃

40:10Run the game to see our cursor–entity connection, but with incorrect projection to the entity

🏃

42:03Create a picking ray in UpdateAndRenderEntities()

49:59Run the game to find that the picking ray is pegged to the correct location

🏃

49:59Run the game to find that the picking ray is pegged to the correct location

🏃

49:59Run the game to find that the picking ray is pegged to the correct location

🏃

50:22Enable UpdateAndRenderEntities() to draw and highlight the outline of picking boxes using PushVolumeOutline()

54:34Run the game to see outlines around all volumes

🏃

54:34Run the game to see outlines around all volumes

🏃

54:34Run the game to see outlines around all volumes

🏃

54:48Introduce RayIntersectsBox() based on RayCast()

1:02:57Run the game to find that the picking is working

🏃

1:02:57Run the game to find that the picking is working

🏃

1:02:57Run the game to find that the picking is working

🏃

1:03:20Enable RayIntersectsBox() and UpdateAndRenderEntities() to highlight only the nearest intersection

1:07:33Run the game to find that it only picks the closest hit

🏃

1:07:33Run the game to find that it only picks the closest hit

🏃

1:07:33Run the game to find that it only picks the closest hit

🏃

1:07:54Enable UpdateAndRenderEntities() to support sprite picking

1:09:38Run the game to find that sprites may be picked, and consider how to proceed, including the problem of disambiguating layered (transparent) sprites

🏃

1:09:38Run the game to find that sprites may be picked, and consider how to proceed, including the problem of disambiguating layered (transparent) sprites

🏃

1:09:38Run the game to find that sprites may be picked, and consider how to proceed, including the problem of disambiguating layered (transparent) sprites

🏃

1:14:43insobot 16 minutes into the Q&A, -1 until end. (based on NOTE)

🗪

1:14:43insobot 16 minutes into the Q&A, -1 until end. (based on NOTE)

🗪

1:14:43insobot 16 minutes into the Q&A, -1 until end. (based on NOTE)

🗪

1:15:57Look forward to further improving the lighting

🏃

1:15:57Look forward to further improving the lighting

🏃

1:15:57Look forward to further improving the lighting

🏃

1:17:09Consider displaying errors recorded for a picked bitmap

🗩

1:17:09Consider displaying errors recorded for a picked bitmap

🗩

1:17:09Consider displaying errors recorded for a picked bitmap

🗩

1:22:22Augment hha_annotation with an error stream and propagate this addition to WriteHHA_V2() and PrintContents()

1:32:12Check out local.hha in TabView to see no mention of error streams

🗹

1:32:12Check out local.hha in TabView to see no mention of error streams

🗹

1:32:12Check out local.hha in TabView to see no mention of error streams

🗹

1:33:04Consider where to write asset import error messages

🗩

1:33:04Consider where to write asset import error messages

🗩

1:33:04Consider where to write asset import error messages

🗩

1:36:51Enable WriteImageToHHA() to write out asset and file errors, introducing WriteAssetStream()

1:46:00Trigger an asset reimport and check out local.hha in TabView to see the Errors field, but with no content

🗹

1:46:00Trigger an asset reimport and check out local.hha in TabView to see the Errors field, but with no content

🗹

1:46:00Trigger an asset reimport and check out local.hha in TabView to see the Errors field, but with no content

🗹

1:47:21Fix typo in PrintContents()

1:47:33Trigger another asset import and see errors, with slightly incorrect printout

🗹

1:47:33Trigger another asset import and see errors, with slightly incorrect printout

🗹

1:47:33Trigger another asset import and see errors, with slightly incorrect printout

🗹

1:48:17Fix PrintContents() to correctly parse out the errors

1:50:02Reimport and check out local.hha in TabView to see that all is correct

🗹

1:50:02Reimport and check out local.hha in TabView to see that all is correct

🗹

1:50:02Reimport and check out local.hha in TabView to see that all is correct

🗹

1:50:23Add newlines to the asset and file error messages

1:51:19Reimport and check out local.hha in TabView to cleanly see our errors

🗹

1:51:19Reimport and check out local.hha in TabView to cleanly see our errors

🗹

1:51:19Reimport and check out local.hha in TabView to cleanly see our errors

🗹

1:52:25Q&A

🗩

1:52:25Q&A

🗩

1:52:25Q&A

🗩

1:53:12desuused Q: Is it possible to account for sprite opacity when selecting items, for the selection to be more intuitive? Is it useful to generate a more slim triangulation for sprites?

🗪

1:53:12desuused Q: Is it possible to account for sprite opacity when selecting items, for the selection to be more intuitive? Is it useful to generate a more slim triangulation for sprites?

🗪

1:53:12desuused Q: Is it possible to account for sprite opacity when selecting items, for the selection to be more intuitive? Is it useful to generate a more slim triangulation for sprites?

🗪

1:55:36frostyninja Q: Instead of fussing with selecting the individual sprite parts, wouldn't it be handier to list them in a picked entity HUD

🗪

1:55:36frostyninja Q: Instead of fussing with selecting the individual sprite parts, wouldn't it be handier to list them in a picked entity HUD

🗪

1:55:36frostyninja Q: Instead of fussing with selecting the individual sprite parts, wouldn't it be handier to list them in a picked entity HUD

🗪

1:55:50somebody_took_my_name Q: Is the .Count inclusive with strings? In other words, do you really need the nested ifs in the line printer?

🗪

1:55:50somebody_took_my_name Q: Is the .Count inclusive with strings? In other words, do you really need the nested ifs in the line printer?

🗪

1:55:50somebody_took_my_name Q: Is the .Count inclusive with strings? In other words, do you really need the nested ifs in the line printer?

🗪

1:56:08desuused Q: You spent a lot of time optimizing the hash function, but is it worth it? Most of the time you calculate hashes when doing I/O, which will always be significantly slower, so you'll save more time if you calculate the hash in parallel with I/O. This way MeowHash and SHA512 would have the same impact on runtime, despite MeowHash being 80 times faster

🗪

1:56:08desuused Q: You spent a lot of time optimizing the hash function, but is it worth it? Most of the time you calculate hashes when doing I/O, which will always be significantly slower, so you'll save more time if you calculate the hash in parallel with I/O. This way MeowHash and SHA512 would have the same impact on runtime, despite MeowHash being 80 times faster

🗪

1:56:08desuused Q: You spent a lot of time optimizing the hash function, but is it worth it? Most of the time you calculate hashes when doing I/O, which will always be significantly slower, so you'll save more time if you calculate the hash in parallel with I/O. This way MeowHash and SHA512 would have the same impact on runtime, despite MeowHash being 80 times faster

🗪

2:00:26somebody_took_my_name Q: You check for At == Count, but I should think that by then you would already be past the last character in the stream

🗪

2:00:26somebody_took_my_name Q: You check for At == Count, but I should think that by then you would already be past the last character in the stream

🗪

2:00:26somebody_took_my_name Q: You check for At == Count, but I should think that by then you would already be past the last character in the stream

🗪

2:01:20Simplify the error printing in PrintContents()

2:01:52Check out local.hha in TabView to find that the error printing remains correct

🗹

2:01:52Check out local.hha in TabView to find that the error printing remains correct

🗹

2:01:52Check out local.hha in TabView to find that the error printing remains correct

🗹

2:02:57Hashing performance, in terms of (not) being memory or I/O bound

🗩

2:02:57Hashing performance, in terms of (not) being memory or I/O bound

🗩

2:02:57Hashing performance, in terms of (not) being memory or I/O bound

🗩

2:09:14Wrap it up

🗩

2:09:14Wrap it up

🗩

2:09:14Wrap it up

🗩

Keyboard Navigation

Global Keys

Menu toggling

In-Menu and Index Controls

Quotes and References Menus and Index

Quotes, References and Credits Menus

Filter Menu

Filter and Link Menus

Credits Menu