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Mapgen: Remove unused 'flat' and 'trees' flags from mg_flags

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When the 'flat' and 'trees' flags were moved into mgv6_spflags they
were left in mg_flags in an attempt to support old mgv6 worlds. However
their appearence in mg_flags causes confusion, also, later, old-world
support was found to be broken for mgv6 worlds with 'notrees'.

This commit cleans up the mess and comes a month after a thread warning
of the change, and explaining the required action, was posted in the
news subforum. Only old mgv6 worlds with 'flat' or 'notrees' are
affected, a small minority of worlds, the required action being
correctly setting these flags in mgv6_spflags.

Disable a section of the 'map settings manager' unit test which is to
be changed as it is causing problems for pull requests.
This commit is contained in:
paramat 2016-07-29 03:44:58 +01:00
parent fca8e53842
commit ea12da939f
4 changed files with 13 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/mapgen.cpp
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@ -50,10 +50,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "dungeongen.h"
FlagDesc flagdesc_mapgen[] = {
{"trees", MG_TREES},
{"caves", MG_CAVES},
{"dungeons", MG_DUNGEONS},
{"flat", MG_FLAT},
{"light", MG_LIGHT},
{"decorations", MG_DECORATIONS},
{NULL, 0}

4
src/mapgen.h
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@ -30,10 +30,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#define MAPGEN_DEFAULT_NAME "v6"
/////////////////// Mapgen flags
#define MG_TREES 0x01
#define MG_TREES 0x01 // Deprecated. Moved into mgv6 flags
#define MG_CAVES 0x02
#define MG_DUNGEONS 0x04
#define MG_FLAT 0x08
#define MG_FLAT 0x08 // Deprecated. Moved into mgv6 flags
#define MG_LIGHT 0x10
#define MG_DECORATIONS 0x20

10
src/mapgen_v6.cpp
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@ -268,7 +268,7 @@ float MapgenV6::baseTerrainLevel(float terrain_base, float terrain_higher,
float MapgenV6::baseTerrainLevelFromNoise(v2s16 p)
{
if ((spflags & MGV6_FLAT) || (flags & MG_FLAT))
if (spflags & MGV6_FLAT)
return water_level;
float terrain_base = NoisePerlin2D_PO(&noise_terrain_base->np,
@ -294,7 +294,7 @@ float MapgenV6::baseTerrainLevelFromMap(v2s16 p)
float MapgenV6::baseTerrainLevelFromMap(int index)
{
if ((spflags & MGV6_FLAT) || (flags & MG_FLAT))
if (spflags & MGV6_FLAT)
return water_level;
float terrain_base = noise_terrain_base->result[index];
@ -402,7 +402,7 @@ bool MapgenV6::getHaveAppleTree(v2s16 p)
float MapgenV6::getMudAmount(int index)
{
if ((spflags & MGV6_FLAT) || (flags & MG_FLAT))
if (spflags & MGV6_FLAT)
return MGV6_AVERAGE_MUD_AMOUNT;
/*return ((float)AVERAGE_MUD_AMOUNT + 2.0 * noise2d_perlin(
@ -599,7 +599,7 @@ void MapgenV6::makeChunk(BlockMakeData *data)
growGrass();
// Generate some trees, and add grass, if a jungle
if ((spflags & MGV6_TREES) || (flags & MG_TREES))
if (spflags & MGV6_TREES)
placeTreesAndJungleGrass();
// Generate the registered decorations
@ -626,7 +626,7 @@ void MapgenV6::calculateNoise()
int fx = full_node_min.X;
int fz = full_node_min.Z;
if (!((spflags & MGV6_FLAT) || (flags & MG_FLAT))) {
if (!(spflags & MGV6_FLAT)) {
noise_terrain_base->perlinMap2D_PO(x, 0.5, z, 0.5);
noise_terrain_higher->perlinMap2D_PO(x, 0.5, z, 0.5);
noise_steepness->perlinMap2D_PO(x, 0.5, z, 0.5);

8
src/unittest/test_map_settings_manager.cpp
View File

@ -187,10 +187,13 @@ void TestMapSettingsManager::testMapSettingsManager()
UASSERT(mgr.mapgen_params == params);
UASSERT(mgr.makeMapgenParams() == params);
#if 0
// TODO(paramat or hmmmm): change this to compare the result against a static file
// Load the resulting map_meta.txt and make sure it contains what we expect
unsigned char expected_contents_hash[20] = {
0xf6, 0x44, 0x90, 0xb7, 0xab, 0xd8, 0x91, 0xf4, 0x08, 0x96,
0xfc, 0x7e, 0xed, 0x01, 0xc5, 0x9a, 0xfd, 0x2f, 0x2d, 0x79
0x48, 0x3f, 0x88, 0x5a, 0xc0, 0x7a, 0x14, 0x48, 0xa4, 0x71,
0x78, 0x56, 0x95, 0x2d, 0xdc, 0x6a, 0xf7, 0x61, 0x36, 0x5f
};
SHA1 ctx;
@ -201,6 +204,7 @@ void TestMapSettingsManager::testMapSettingsManager()
free(sha1_result);
UASSERT(!resultdiff);
#endif
}