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="Virtualized Tile Maps" vod_platform=youtube id=iHSAOSYOt9E annotator=jacebennett annotator=theinternetftw]
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[2:03][Review of position representation]
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[2:35][Today's agenda]
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[3:55][world_position and changing y-axis]
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[12:00][the problem with floating point for positions]
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[16:38][solution: integers and floats]
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[19:33][sidebar: scrolling the screen works fine too]
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[20:07][big idea: tile chunks and sparse storage]
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[26:33][implementing our new coordinate system]
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[30:56][tangent: toroidal topology]
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[35:55][back to implementation of new coordinates]
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[37:18][extracting chunk coordinates from a world_position]
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[44:05][implementing tile chunks]
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[50:21][Setting up test data]
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[50:50][emacs keyboard macro roulette]
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[54:06][rendering from chunks using new coordinate system]
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[54:47][super piggy!]
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[58:45][debugging commences]
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[1:00:48][success]
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[1:01:20][greed: simple scrolling]
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[1:07:39][success again... finally]
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2018-03-07 21:48:09 +00:00
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[1:08:24][Q&A][:speech]
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2017-12-06 22:26:13 +00:00
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[1:09:06][Why not compute the chunk mask from the chunk shift?]
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[1:14:04][How did you generate the map? (A: he hasn't yet, it was typed in)]
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[1:14:26][How will you do a third dimension in the new coordinate system?]
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[1:16:04][How will you handle screen boundaries with the new chunk size?]
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[1:17:06][Is a chunk a quarter of our test map?]
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[1:17:38][How about operator overloading?]
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[1:18:18][Shouldn't we be thinking about networking and threading from the start?]
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[1:19:35][What does 0xFFFFFFFF represent?]
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[1:20:42][I'm surprised by your choice to flip the y-axis. Does it really make the math that much easier?]
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[1:22:57][I've never used hex literals, I use UINT32_MAX]
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[1:23:57][Why not program at a higher level?]
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[1:26:09][Why introduce meters?]
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[1:27:03][Will you be checking code complexity, introducing smaller functions?]
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[1:27:43][Did you set up a Kickstarter?]
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[1:28:08][Wouldn't it be nice if tiles were 1.0m instead of 1.4m?]
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2018-03-07 21:48:09 +00:00
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[1:28:53][Closing thoughts][:speech]
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2017-12-06 22:26:13 +00:00
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[/video]
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