2017-12-06 22:26:13 +00:00
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[video member=cmuratori stream_platform=twitch stream_username=handmade_hero project=code title="Basic 2D Vectors" vod_platform=youtube id=eE-D_wSUd0g annotator=abnercoimbre annotator=schme annotator=theinternetftw]
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[00:00][Intro]
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[00:22][Character movement code.]
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[01:45][Recap]
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[2:50][Issues with current character movement code.]
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[4:25][What we want to do with the movement code.]
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[4:53][What makes a game engaging.]
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[6:30][Reason for vector math.]
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[7:00][What to start fixing.]
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[7:35][Vector math intro.]
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[11:36][Sketches]
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[19:06][A scalar problem for the viewer.]
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[24:53][Correcting player's diagonal motion.]
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[26:10][Transitioning to vectors.]
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[30:30][Vector notation]
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[33:13][Basic Vector Operations]
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[37:46][Multiplication in Vector Space]
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[43:30][Adding vector routines to the code]
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[48:25][Replacing scalar code with vector code.]
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2018-03-07 21:48:09 +00:00
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[1:01:53][Q&A][:speech]
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2017-12-06 22:26:13 +00:00
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[1:02:28][How do union types work in C++ and what are the drawbacks?]
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[1:04:42][About vector conventions]
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[1:05:07][In the first version of vector, weren't you just missing an anonymous struct in the union?]
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[1:07:23][How do you remember all these commands?]
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[1:08:47][Is there a performance reason not to use constructors for v2?]
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[1:10:16][When would the fact that objects members are private or public come in to play?]
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[1:12:04][You should be able to have compound assignments outside the object.]
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[1:14:02][If you're using vertical bars for vectors, how would you notate the determinant?]
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[1:15:23][Can't you make the whole vector struct an union?]
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[1:16:30][Does the altered v2 work now if you comment out the constructor?]
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[1:18:09][What libs are you using?]
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[1:18:17][Just tested the v2 struct in llvm and it compiles fine.]
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[1:18:40][If I remember correctly, both gcc and llvm complains about the union struct]
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[1:19:33][Do you have any book recommandations for vector math?]
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[1:22:14][Will you define vector and scalar addition?]
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[1:25:15][Any particular reason to not supporting both vector-scalar and scalar-vector operators?]
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[1:26:19][The earlier struct-syntax is C99]
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[1:26:37][Does not returning real32 instead of v2 in *= operator trim your y-value?]
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[1:28:25][In C++11 you can do (v2){5, 2} as v2{5, 3}]
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[1:29:43][Don't you need some graphics library to place stuff not in a console?]
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[1:31:20][It's time to upgrade your copyright notice!]
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[1:32:19][Do you have use for constants like v2up, v2down etc?]
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[1:33:50][Copyright should cover all years in which content was contributed]
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[1:34:48][How about adding const references to function parameters to avoid copy by value]
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[1:35:53][Doesn't const help the compiler optimize?]
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[/video]
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