updated noise stuff

src/noise.cpp

@@ -238,7 +238,11 @@ double noise3d_param(const NoiseParams &param, double x, double y, double z)
 	y /= s;
 	z /= s;
 
-	if(param.type == NOISE_PERLIN)
+	if(param.type == NOISE_CONSTANT_ONE)
+	{
+		return 1.0;
+	}
+	else if(param.type == NOISE_PERLIN)
 	{
 		return param.noise_scale*noise3d_perlin(x,y,z, param.seed,
 				param.octaves,

src/noise.h

@@ -82,10 +82,11 @@ double noise3d_perlin_abs(double x, double y, double z, int seed,
 
 enum NoiseType
 {
+	NOISE_CONSTANT_ONE,
 	NOISE_PERLIN,
 	NOISE_PERLIN_ABS,
 	NOISE_PERLIN_CONTOUR,
-	NOISE_PERLIN_CONTOUR_FLIP_YZ
+	NOISE_PERLIN_CONTOUR_FLIP_YZ,
 };
 
 struct NoiseParams