Some changes in default settings

- blocksize = 15 by default
- base noise is eased
- added tectonic compensation radius in settings

noises.lua

@@ -9,6 +9,7 @@ mapgen_rivers.noise_params = {
 		spread = {x=2048, y=2048, z=2048},
 		persist = 0.6,
 		lacunarity = 2,
+		flags = "eased",
 	}),
 
 	distort_x = def_setting('np_distort_x', 'noise', {

settings.lua

@@ -42,7 +42,7 @@ local def_setting = mapgen_rivers.define_setting
 
 mapgen_rivers.settings = {
 	center = def_setting('center', 'bool', true),
-	blocksize = def_setting('blocksize', 'number', 12),
+	blocksize = def_setting('blocksize', 'number', 15),
 	sea_level = tonumber(minetest.get_mapgen_setting('water_level')),
 	min_catchment = def_setting('min_catchment', 'number', 25),
 	max_catchment = def_setting('max_catchment', 'number', 40000),
@@ -57,6 +57,7 @@ mapgen_rivers.settings = {
 		K = def_setting('river_erosion_coef', 'number', 0.5),
 		m = def_setting('river_erosion_power', 'number', 0.4),
 		d = def_setting('diffusive_erosion', 'number', 0.5),
+		compensation_radius = def_setting('compensation_radius', 'number', 50),
 	},
 	tectonic_speed = def_setting('tectonic_speed', 'number', 70),
 	evol_time = def_setting('evol_time', 'number', 10),

settingtypes.txt

@@ -7,7 +7,7 @@ mapgen_rivers_center (Center map) bool true
 #    a square of this size.
 #    For example if the grid size is 1000x1000 and block size is 12,
 #    the actual size of the map will be 12000.
-mapgen_rivers_blocksize (Block size) float 12.0 2.0 40.0
+mapgen_rivers_blocksize (Block size) float 15.0 2.0 100.0
 
 #    Minimal catchment area for a river to be drawn, in grid cells
 #    (1 cell = blocksize x blocksize).
@@ -79,6 +79,10 @@ mapgen_rivers_river_erosion_power (River erosion power) float 0.4 0.0 1.0
 #    Smoothes peaks and valleys, and tends to prevent sharp cliffs from forming.
 mapgen_rivers_diffusive_erosion (Diffusive erosion) float 0.5 0.0 10.0
 
+#    Radius of compensation for isostatic/tectonic processes
+#    Tectonic uplift forces will have a diffuse effect over this radius
+mapgen_rivers_compensation_radius (Tectonic compensation radius) float 50 1.0 1000.0
+
 #    Speed of evolution of tectonic conditions between steps
 #    Higher values means tectonics will be very different from one step to the other,
 #    resulting in geologically unstable and more varied landforms (plateau, gorge, lake...)
@@ -89,7 +93,7 @@ mapgen_rivers_tectonic_speed (Tectonic speed) float 70 0 10000
 #    Y level of terrain at a very large scale. Only used during pre-generation.
 #    X and Z axes correspond to map's X and Z directions, and Y axis is time.
 #    Successive XZ slices of this noise represent successive tectonic states.
-mapgen_rivers_np_base (Terrain base noise) noise_params_3d 0, 300, (2048, 2048, 2048), 2469, 8, 0.6, 2.0
+mapgen_rivers_np_base (Terrain base noise) noise_params_3d 0, 300, (2048, 2048, 2048), 2469, 8, 0.6, 2.0, eased
 
 #    This noise will shear the terrain on the X axis,
 #    to break the regularity of the river grid.