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-rw-r--r--builtin/settingtypes.txt7
1 files changed, 6 insertions, 1 deletions
diff --git a/builtin/settingtypes.txt b/builtin/settingtypes.txt
index 25849e0c7..e5fe5cb95 100644
--- a/builtin/settingtypes.txt
+++ b/builtin/settingtypes.txt
@@ -970,11 +970,16 @@ mgflat_np_cave2 (Mapgen flat cave2 noise parameters) noise_params 0, 12, (128, 1
[***Mapgen fractal]
# Map generation attributes specific to Mapgen fractal.
-# 'julia' selects a julia set to be generated instead of a mandelbrot set.
+# The 'julia' flag results in the corresponding julia set being generated.
# Flags that are not specified in the flag string are not modified from the default.
# Flags starting with "no" are used to explicitly disable them.
mgfractal_spflags (Mapgen fractal flags) flags nojulia julia,nojulia
+# Choice of 4 mandelbrot set variations.
+# 1 = 4D "Roundy" mandelbrot set, 2 = 4D "Squarry" mandelbrot set,
+# 3 = 4D "Mandy Cousin" mandelbrot set, 4 = 4D mandelbrot set variation.
+mgfractal_formula (Mapgen fractal formula) int 1 1 4
+
# Mandelbrot set: Iterations of the recursive function.
# Controls scale of finest detail.
mgfractal_m_iterations (Mapgen fractal mandelbrot iterations) int 9