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Mgv5: getGroundLevelAtPoint searches a larger range

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paramat 2015-10-04 03:52:55 +01:00
parent 94464fce70
commit ce1a70c703
1 changed files with 10 additions and 9 deletions
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19
src/mapgen_v5.cpp
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@ -182,23 +182,24 @@ int MapgenV5::getGroundLevelAtPoint(v2s16 p)
f *= 1.6; f *= 1.6;
float h = NoisePerlin2D(&noise_height->np, p.X, p.Y, seed); float h = NoisePerlin2D(&noise_height->np, p.X, p.Y, seed);
s16 search_top = water_level + 15; s16 search_start = 128; // Only bother searching this range, actual
s16 search_base = water_level; s16 search_end = -128; // ground level is rarely higher or lower.
s16 level = -31000; for (s16 y = search_start; y >= search_end; y--) {
for (s16 y = search_top; y >= search_base; y--) {
float n_ground = NoisePerlin3D(&noise_ground->np, p.X, y, p.Y, seed); float n_ground = NoisePerlin3D(&noise_ground->np, p.X, y, p.Y, seed);
// If solid
if (n_ground * f > y - h) { if (n_ground * f > y - h) {
if (y >= search_top - 7) // If either top 2 nodes of search are solid this is inside a
break; // mountain or floatland with no space for the player to spawn.
if (y >= search_start - 1)
return MAX_MAP_GENERATION_LIMIT;
else else
level = y; return y; // Ground below at least 2 nodes of space
break;
} }
} }
//printf("getGroundLevelAtPoint: %dus\n", t.stop()); //printf("getGroundLevelAtPoint: %dus\n", t.stop());
return level; return -MAX_MAP_GENERATION_LIMIT;
} }