# Name of map generator to be used when creating a new world.
# Creating a world in the main menu will override this.
-# Current stable mapgens:
-# v5, v6, v7 (except floatlands), singlenode.
-# 'stable' means the terrain shape in an existing world will not be changed
-# in the future. Note that biomes are defined by games and may still change.
+# Current mapgens in a highly unstable state:
+# - The optional floatlands of v7 (disabled by default).
mg_name (Mapgen name) enum v7 v5,v6,v7,valleys,carpathian,fractal,flat,singlenode
# Water surface level of the world.
emergequeue_limit_generate (Limit of emerge queues to generate) int 64
# Number of emerge threads to use.
-# Empty or 0 value:
+# WARNING: Currently there are multiple bugs that may cause crashes when
+# 'num_emerge_threads' is larger than 1. Until this warning is removed it is
+# strongly recommended this value is set to the default '1'.
+# Value 0:
# - Automatic selection. The number of emerge threads will be
# - 'number of processors - 2', with a lower limit of 1.
# Any other value:
# - Specifies the number of emerge threads, with a lower limit of 1.
-# Warning: Increasing the number of emerge threads increases engine mapgen
+# WARNING: Increasing the number of emerge threads increases engine mapgen
# speed, but this may harm game performance by interfering with other
# processes, especially in singleplayer and/or when running Lua code in
-# 'on_generated'.
-# For many users the optimum setting may be '1'.
-num_emerge_threads (Number of emerge threads) int 0
+# 'on_generated'. For many users the optimum setting may be '1'.
+num_emerge_threads (Number of emerge threads) int 1
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