From: paramat Date: Tue, 29 Nov 2016 04:08:55 +0000 (+0000) Subject: Mgv7 floatlands: Various improvements X-Git-Tag: 0.4.15~95 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=6c9f10e132ac80a0caffef12d61de84a0a6b02b3;p=oweals%2Fminetest.git Mgv7 floatlands: Various improvements Floatland base terrain underside was too thin, causing excessive water leakage through tunnels under lakes, now make it thicker. Floatland mountain terrain had a rim 1 node thick which made it bare stone, now make it 2 nodes thick to merge with the floatland base terrain rim and to have a layer of biome material. Make mountain terrain more exponentially shaped by altering the exponent. Remove unnecessary and potentially ugly MYMAX() applied to n_base_height. --- diff --git a/src/mapgen_v7.cpp b/src/mapgen_v7.cpp index c4fa024a8..498a1333c 100644 --- a/src/mapgen_v7.cpp +++ b/src/mapgen_v7.cpp @@ -346,8 +346,11 @@ bool MapgenV7::getMountainTerrainFromMap(int idx_xyz, int idx_xz, s16 y) bool MapgenV7::getFloatlandMountainFromMap(int idx_xyz, int idx_xz, s16 y) { - float density_gradient = - -pow(fabs((float)(y - floatland_level) / float_mount_height), 0.8f); + // Make rim 2 nodes thick to match floatland base terrain + float density_gradient = (y >= floatland_level) ? + -pow((float)(y - floatland_level) / float_mount_height, 0.75f) : + -pow((float)(floatland_level - 1 - y) / float_mount_height, 0.75f); + float floatn = noise_mountain->result[idx_xyz] + float_mount_density; return floatn + density_gradient >= 0.0f; @@ -362,11 +365,10 @@ void MapgenV7::floatBaseExtentFromMap(s16 *float_base_min, s16 *float_base_max, float n_base = noise_floatland_base->result[idx_xz]; if (n_base > 0.0f) { - float n_base_height = - MYMAX(noise_float_base_height->result[idx_xz], 0.0f); + float n_base_height = noise_float_base_height->result[idx_xz]; float amp = n_base * n_base_height; float ridge = n_base_height / 3.0f; - base_min = floatland_level - amp / 2.0f; + base_min = floatland_level - amp / 1.5f; if (amp > ridge * 2.0f) { // Lake bed