forked from Mirrorlandia_minetest/minetest
Mgv7: Clean up divide-by-zero fix
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@ -57,13 +57,16 @@ MapgenV7::MapgenV7(int mapgenid, MapgenV7Params *params, EmergeManager *emerge)
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this->spflags = params->spflags;
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this->cave_width = params->cave_width;
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this->float_mount_density = params->float_mount_density;
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float_mount_height_lim = MYMAX(params->float_mount_height, 1.0f);
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this->floatland_level = params->floatland_level;
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this->shadow_limit = params->shadow_limit;
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this->cavern_limit = params->cavern_limit;
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this->cavern_taper = params->cavern_taper;
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this->cavern_threshold = params->cavern_threshold;
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// This is to avoid a divide-by-zero.
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// Parameter will be saved to map_meta.txt in limited form.
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params->float_mount_height = MYMAX(params->float_mount_height, 1.0f);
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// 2D noise
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noise_terrain_base = new Noise(¶ms->np_terrain_base, seed, csize.X, csize.Z);
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noise_terrain_alt = new Noise(¶ms->np_terrain_alt, seed, csize.X, csize.Z);
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@ -399,8 +402,8 @@ bool MapgenV7::getFloatlandMountainFromMap(int idx_xyz, int idx_xz, s16 y)
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{
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// Make rim 2 nodes thick to match floatland base terrain
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float density_gradient = (y >= floatland_level) ?
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-pow((float)(y - floatland_level) / float_mount_height_lim, 0.75f) :
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-pow((float)(floatland_level - 1 - y) / float_mount_height_lim, 0.75f);
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-pow((float)(y - floatland_level) / float_mount_height, 0.75f) :
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-pow((float)(floatland_level - 1 - y) / float_mount_height, 0.75f);
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float floatn = noise_mountain->result[idx_xyz] + float_mount_density;
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@ -103,8 +103,6 @@ private:
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Noise *noise_float_base_height;
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Noise *noise_mountain;
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Noise *noise_ridge;
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float float_mount_height_lim;
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};
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#endif
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