57 commits

Author	SHA1	Message	Date
Matthias Schiffer	3ec83c8cf8	Compare file contents with old data before writing ... Do not writeoutput files when their content hasn't changed. This saves time for incremental generation (as compressing a PNG takes much longer than decompressing it) and avoids modification timestamp updates that might trigger subsequent generation steps.	2020-06-20 15:01:52 +02:00
Matthias Schiffer	98e21236d9	Do not generate light data for invisible blocks	2020-06-20 14:48:26 +02:00
Matthias Schiffer	03ae9cf302	Exclude unpopulated chunks from biome averaging ... Avoids weirdly colored stripes at the edges of the map.	2020-06-20 12:17:24 +02:00
Matthias Schiffer	eb831608e0	Add smooth transitions between biomes ... Simliar to the way biome transitions are rendered in Minecraft itself, add smoothing by averaging biome-based colors over all biome values with distance ≤3 (1-norm).	2020-06-20 12:15:32 +02:00
Matthias Schiffer	623d70ec9e	More preparation for biome smoothing	2020-06-20 11:40:29 +02:00
Matthias Schiffer	19ef022a67	Biome: return FloatColor for block colors	2020-06-20 11:40:29 +02:00
Matthias Schiffer	50f798f89e	Do not store biome in block structure ... Use biome data from biome map.	2020-06-20 11:40:29 +02:00
Matthias Schiffer	a3cf5edda4	Read biome maps when iterating regions	2020-06-20 11:40:29 +02:00
Matthias Schiffer	072d664199	Separate top layer search from block data retrieval	2020-06-20 11:40:29 +02:00
Matthias Schiffer	569d0f1198	Pass region indices as int instead of size_t ... Region indices can be negative.	2020-06-20 11:40:29 +02:00
Matthias Schiffer	4f7663f82f	Merge doRegion{,Biome}() into makeBiome()/makeMap()	2020-06-20 11:40:27 +02:00
Matthias Schiffer	2f0d1892f4	Split getModTime() out of checkRegion()	2020-06-20 00:58:08 +02:00
Matthias Schiffer	f539d668eb	Collect biome data ... We store the biome data as grayscale images, as biome indices are represented as bytes and we get PNG compression for free.	2020-06-20 00:58:08 +02:00
Matthias Schiffer	dc97c4a8c1	PNG: add support for grayscale images without alpha	2020-06-20 00:58:08 +02:00
Matthias Schiffer	4f49434dbf	Clean up doLevel()	2020-06-19 20:06:44 +02:00
Matthias Schiffer	0245c5c926	Add message before updating mipmaps	2020-06-19 19:09:40 +02:00
Matthias Schiffer	d9af9cbc9d	Catch normal runtime errors instead of exiting with SIGABRT	2019-12-14 22:16:41 +01:00
Matthias Schiffer	0bdf249307	Add biome color computation ... Rather than using fixed values for all biomes, generate grass and foliage colors based on (height-dependent) temperature and rainfall parameters. This changes a lot of colors; in general, the new colors should be closer to the actual Minecraft rendering. It also fixes a few colors that were completely off (like in the badlands biomes) and adds the MC 1.13 biomes (which were rendered in black). Some of the newer biomes (warm/cold/... oceans) don't have proper parameters yet, and we do not derive the water color from the biome yet. Fixes #1.	2018-11-08 17:49:28 +01:00
Matthias Schiffer	a3246d98c0	Adjust for minor API differences on Windows	2018-07-26 23:18:56 +02:00
Matthias Schiffer	de04cce993	World/Block: return colors as struct instead of uint32_t ... Gets rid of a useless byte switch, and removes the arpa/inet.h include, which is not available on Windows.	2018-07-26 23:18:55 +02:00
Matthias Schiffer	4e3a9736b6	World/Block: remove useless blockLight accessor	2018-07-22 16:59:18 +02:00
Matthias Schiffer	c082c8800c	Separate splitting of regions into chunks and actual parsing of chunk structure	2018-07-20 23:49:51 +02:00
Matthias Schiffer	292f4f4f3b	Don't rely on utimensat() ... utimensat() does not work on all filesystems, in particular on Windows.	2017-06-13 16:39:17 +02:00
Matthias Schiffer	1e14dabc2d	Fix definition of timespec >= operator	2015-02-06 23:06:11 +01:00
Matthias Schiffer	d73c8b930b	Include cleanup ... Also remove all uses of unistd.h by replacing unlink with std::rename	2015-02-06 19:51:20 +01:00
Matthias Schiffer	fb81ea7d60	Make light layer darker	2015-02-06 17:56:59 +01:00
Matthias Schiffer	e4b1919ba8	Use heap memory for image buffers	2015-02-04 09:00:34 +01:00
Matthias Schiffer	4d9f29afab	Add mipmap support to allow zooming out	2015-02-03 20:15:58 +01:00
Matthias Schiffer	0162c236fa	Nicer timespec operations	2015-02-03 18:39:58 +01:00
Matthias Schiffer	45a1915006	Refactor image creation	2015-02-03 15:02:21 +01:00
Matthias Schiffer	0bd8e211e2	Also unlink light tmpfile on errors	2015-02-03 14:19:19 +01:00
Matthias Schiffer	9e0bbcf685	Generate light layer	2015-02-03 13:13:12 +01:00
Matthias Schiffer	e1b3347da5	Start mipmapping infrastructure	2015-02-03 12:42:33 +01:00
Matthias Schiffer	1d3db43d29	Refactor PNG writing	2015-02-02 19:29:37 +01:00
Matthias Schiffer	b46c5de3ac	Free PNG structs after writing	2015-02-02 18:52:33 +01:00
Matthias Schiffer	34857eabbc	Add spawn coordinates	2015-02-02 18:33:21 +01:00
Matthias Schiffer	db59b73856	Refactor info generation	2015-02-02 17:56:43 +01:00
Matthias Schiffer	fd4ce45885	Generate info file	2015-02-02 05:13:07 +01:00
Matthias Schiffer	8bdbfd3ec0	Factor out filename check	2015-02-02 04:47:40 +01:00
Matthias Schiffer	213124ec57	Output "normal" messages to stdout ... This makes it easier to filter for the errors	2015-02-02 03:53:49 +01:00
Matthias Schiffer	75671b4b96	Catch exceptions for single regions	2015-02-02 03:38:49 +01:00
Matthias Schiffer	a3d6648fa6	Workaround for old libraries without regex support	2015-02-02 03:33:43 +01:00
Matthias Schiffer	bedd81dce6	Don't explicitly include setjmp ... libpng does this for us.	2015-02-02 03:20:25 +01:00
Matthias Schiffer	58adcc4c15	Skip unchanged regions	2015-02-02 03:06:22 +01:00
Matthias Schiffer	248b9e319d	Convert all regions with one call	2015-02-02 02:25:56 +01:00
Matthias Schiffer	8db3a5b94f	Use DIM constant as PNG dimension	2015-02-02 01:47:16 +01:00
Matthias Schiffer	8c1629af42	Change region reader to a visitor pattern ... Not keeping the whole region in memory reduces the needed space to less than 5MB (from about 140).	2015-02-02 01:41:17 +01:00
Matthias Schiffer	22b9cfcb8b	Move ressource files to a separate directory	2015-02-02 00:31:52 +01:00
Matthias Schiffer	9b1d92387d	Use biome data	2015-02-01 15:19:18 +01:00
Matthias Schiffer	143b9f6c78	Add support for biome colors, fix block type indices	2015-02-01 15:10:07 +01:00