Add option 'eased' to NoiseParams

Signed-off-by: Craig Robbins <kde.psych@gmail.com>

doc/lua_api.txt

@@ -2796,3 +2796,16 @@ ParticleSpawner definition (add_particlespawner)
     playername = "singleplayer"
     ^ Playername is optional, if specified spawns particle only on the player's client
 }
+
+NoiseParams definition (PerlinNoiseMap)
+{
+    offset = 0,
+    scale = 0,
+    spread = 0,
+    seed = 0,
+    octaves = 0,
+    ^ A higher value will result in more details, this means more operations
+    persist = 0,
+    eased = false
+    ^ Whether it should create curves in 3D perlin maps
+}

src/noise.h

@@ -73,11 +73,12 @@ struct NoiseParams {
 	int seed;
 	int octaves;
 	float persist;
+	bool eased;
 
 	NoiseParams() {}
 
 	NoiseParams(float offset_, float scale_, v3f spread_,
-		int seed_, int octaves_, float persist_)
+		int seed_, int octaves_, float persist_, bool eased_=false)
 	{
 		offset  = offset_;
 		scale   = scale_;
@@ -85,6 +86,7 @@ struct NoiseParams {
 		seed    = seed_;
 		octaves = octaves_;
 		persist = persist_;
+		eased   = eased_;
 	}
 };
 

src/script/common/c_content.cpp

@@ -1000,6 +1000,7 @@ bool read_noiseparams_nc(lua_State *L, int index, NoiseParams *np)
 	np->persist = getfloatfield_default(L, index, "persist", 0.0);
 	np->seed    = getintfield_default(L,   index, "seed",    0);
 	np->octaves = getintfield_default(L,   index, "octaves", 0);
+	np->eased   = getboolfield_default(L,  index, "eased",   false);
 
 	lua_getfield(L, index, "spread");
 	np->spread  = read_v3f(L, -1);

src/script/lua_api/l_noise.cpp

@@ -190,7 +190,7 @@ int LuaPerlinNoiseMap::l_get3dMap(lua_State *L)
 	v3f p = read_v3f(L, 2);
 
 	Noise *n = o->noise;
-	n->perlinMap3D(p.X, p.Y, p.Z);
+	n->perlinMap3D(p.X, p.Y, p.Z, n->np->eased);
 
 	lua_newtable(L);
 	for (int z = 0; z != n->sz; z++) {
@@ -216,7 +216,7 @@ int LuaPerlinNoiseMap::l_get3dMap_flat(lua_State *L)
 	v3f p = read_v3f(L, 2);
 
 	Noise *n = o->noise;
-	n->perlinMap3D(p.X, p.Y, p.Z);
+	n->perlinMap3D(p.X, p.Y, p.Z, n->np->eased);
 
 
 	int maplen = n->sx * n->sy * n->sz;