Adding Sparse Unicode Support — Handmade Hero — Episode Guide

0:15Recap and plan for the day

1:48Spaces are not displayed

2:50Adding the kerning value for space to the kerning table

4:05But wait... that kerning value was already there

4:51Explanation of Casey's previous assumption of what caused the bug

5:54Debugging the asset packer

6:26It seems that the asset packer does not process the space codepoint

7:45The asset packer ignores the space glyph because it has no visible pixels

8:17Spaces are back but we have lost the small letters

8:18Run Handmade Hero, although...^α

8:50Fixing a bug introduced while fixing the problem of the visibility of the space glyphs

9:38Checking the width of rendered spaces

10:17Choosing a target foreign string to test the rendering of non-ASCII characters

11:21Checking that Arial has all the necessary codepoints

12:11Finding the codepoints associated to the test string

14:52A table that encompassed the complete range of characters necessary to represent both ASCII and our target kanji would be massive

16:10We need a way of condensing the ranges of available characters

16:43(Blackboard) Layout of the 1-D symbol lookup table

18:11Easiest but slow solution: store the codepoints themselves for each row of the table

19:22What about preprocessing every string to store the indices to the glyph tables instead of the characters?

22:02Or we can simply store one big table that maps each character to its associated glyph index

23:03Any objections?^β

23:27Storing pairs of codepoints and bitmap_ids instead of just bitmap_ids

24:40The new codepoint table will be decompressed at runtime and used as a direct lookup table

25:31Let's implement that

30:50Adding the kanji owl characters by hand to the asset file

31:20Do AddCharacterAsset for the Kanji Owl straight after adding the other font Assets^γ

32:14Modifying the code that uses plain characters to use glyph indices instead

32:42Setting a maximum glyph count

37:07Fonts are done^δ

38:02Using a huge table at asset pack time to map every Unicode codepoint to our glyphs

43:25Freeing memory associated to the loaded_font variables

43:59Propagating the last changes through the code

44:51We can't refer to the kerning of a pair of glyphs until we have mapped both glyphs

49:18Modifying the HorizontalAdvance table as the last step before writing the font to the asset file

52:01(Blackboard) Writing only the part of the HorizontalAdvance table that we'll use

53:04Starting to implement the partial storage of the HorizontalAdvance table

56:12On freeing things^ε

56:21Leaving the code in a compiling state before the end of the stream

59:07Q&A

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59:07Q&A

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59:07Q&A

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59:26bkboggy I noticed that you rarely comment your code. Your comments mostly consist of TODO comments. What are your thoughts on commenting your code, considering a lot of it is pretty complicated, unless of course you don't see it as such? Or do you think that since you write good code, it doesn't require comments to be readable?

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59:26bkboggy I noticed that you rarely comment your code. Your comments mostly consist of TODO comments. What are your thoughts on commenting your code, considering a lot of it is pretty complicated, unless of course you don't see it as such? Or do you think that since you write good code, it doesn't require comments to be readable?

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59:26bkboggy I noticed that you rarely comment your code. Your comments mostly consist of TODO comments. What are your thoughts on commenting your code, considering a lot of it is pretty complicated, unless of course you don't see it as such? Or do you think that since you write good code, it doesn't require comments to be readable?

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1:01:59robrobby Why was your first calculation of the GlyphTable index size too big (64k) and reduced to 2k, and still later went full-on 64k again? What changed the size?

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1:01:59robrobby Why was your first calculation of the GlyphTable index size too big (64k) and reduced to 2k, and still later went full-on 64k again? What changed the size?

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1:01:59robrobby Why was your first calculation of the GlyphTable index size too big (64k) and reduced to 2k, and still later went full-on 64k again? What changed the size?

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1:02:54ijustwantfood Would it be a good practice to comment after writing all your code for others?

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1:02:54ijustwantfood Would it be a good practice to comment after writing all your code for others?

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1:02:54ijustwantfood Would it be a good practice to comment after writing all your code for others?

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1:05:57cubercaleb Since the questions are slow today, when do you think you will write a proper RNG?

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1:05:57cubercaleb Since the questions are slow today, when do you think you will write a proper RNG?

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1:05:57cubercaleb Since the questions are slow today, when do you think you will write a proper RNG?

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1:06:13pseudonym73 Or a real hash function?

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1:06:13pseudonym73 Or a real hash function?

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1:06:13pseudonym73 Or a real hash function?

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1:07:06jameswidman My comment-writing rule for a while has been: "code should clearly tell you what is being done; comments, if you need them, should only tell you why"

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1:07:06jameswidman My comment-writing rule for a while has been: "code should clearly tell you what is being done; comments, if you need them, should only tell you why"

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1:07:06jameswidman My comment-writing rule for a while has been: "code should clearly tell you what is being done; comments, if you need them, should only tell you why"

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1:07:55drmumba How long have you been coding (years)?

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1:07:55drmumba How long have you been coding (years)?

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1:07:55drmumba How long have you been coding (years)?

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1:08:03abnercoimbre When will you implement the chocolate wine fountain?

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1:08:03abnercoimbre When will you implement the chocolate wine fountain?

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1:08:03abnercoimbre When will you implement the chocolate wine fountain?

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1:08:39Call it

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1:08:39Call it

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1:08:39Call it

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