zirc/src/level.zig, branch polygon_walls Zig raycaster fun https://git.l-3.space/zirc/atom/src/level.zig?h=polygon_walls 2021-12-29T01:10:34Z Allocgate 2021-12-29T01:10:34Z tslil clingman 2021-12-29T01:09:21Z urn:sha1:d4842ba8b60c1e631391e120ea85ae65ddc830b0 Specialise layers to be either lists of vertices or squares 2021-10-22T21:36:22Z tslil clingman 2021-10-22T21:21:10Z urn:sha1:5cecadb81ccab1a2e6ff264349f5fa73a720db9f Texture scaling 2021-10-17T19:30:14Z tslil clingman 2021-10-17T19:30:14Z urn:sha1:c376543f5b2c9593bee3664b7c1cb67f8802f79c Well, there's no reason not to do this ... Multiple polygon layers! 2021-10-15T21:11:06Z tslil clingman 2021-10-15T21:11:06Z urn:sha1:61856ed5407a227aab35d7b800daad883c265dd9 Polygonal walls! 2021-10-14T03:01:36Z tslil clingman 2021-10-14T03:00:33Z urn:sha1:502d41dbd98595b78ca4f80b07a7b91e28163447 It was essentially working before, just some indexing bug. It almost works, but for some reason everything only has 3 sides...? 2021-10-13T02:33:03Z tslil clingman 2021-10-13T02:33:03Z urn:sha1:7fa4ae345c8c8483c0513b21eda7b612315c1a4c Untested first mock up of polygon intersection in square 2021-10-11T01:01:14Z tslil clingman 2021-10-11T01:01:14Z urn:sha1:e014c4a063b05f7e417b4fd593a4f7033b0e4a9f Variable height ceilings! 2021-10-07T15:33:36Z tslil clingman 2021-10-07T15:25:09Z urn:sha1:d4f2376bb0ea219b79dac3f4f37b77342ca6ef4a Plus bonus graphical artefacts around the edges of such! In the end the majority of this code was rather easy: take the upwards floor drawing code and reflect it. However, there were many edge-cases and plenty of off-by-one pixels and rounding issues that didn't quite work the same way going down as they do going up. Also the object drawing code used to take advantage of the fact that the z-buffer was painted bottom-up only, so that required change too. Walk bob and collision detection 2021-09-13T01:40:58Z tslil clingman 2021-09-13T01:40:58Z urn:sha1:d89f038b7a5eb42dd48d729d8808747d5cbc182b Added ceilings and pos_z to sprites (they can now be on the ceiling) 2021-09-10T03:29:10Z tslil clingman 2021-09-10T03:18:56Z urn:sha1:d2f6860430f93291a52d1cdaccf6831cd57be9a5