Mod Calls (Catalyst)

Mod Calls are special functions that can be used with tModLoader's .Call() function to get or set different values from other mods. This page lists the Mod Calls that are provided by the Catalyst Mod along with what they are used for.
An example of a mod call: catalyst.Call("itemset_superbossrarity", ModContent.ItemType<MyItem>())

An asterisk (*) after a parameter type indicates that the function accepts multiple arguments of that type at once. Optional arguments will be specified, along with their default value if applicable.

Mod Calls Table

Function	Returns	Parameters
itemset_superbossrarity	(bool) Whether or not the list already contains the ID	(int) Item ID
worlddefeats.astrageldon	(bool) Whether or not Astrageldon has been defeated	None
worlddefeats.astrageldon_set	(bool) returns the argument	(bool) Whether or not Astrageldon is marked as defeated
astrageldon.any	(bool) returns if Astrageldon is currently alive	None
astrageldon.secondphase	(bool) returns if Astrageldon is in its 2nd phase, will provide an error if Astrageldon is not currently alive	None
astrageldon.secondphase_index	(bool) returns if Astrageldon is in its 2nd phase, will provide errors if the index is out of bounds of the array, or the NPC in question is not of type "Astrageldon"	(int) NPC WhoAmI/Index
anyimportantbgsactive	(bool) returns true if Astrageldon's 2nd phase background is active	None
npcset.asteroidbusterinteraction	void	Option 1: (int) npc type (float) (optional) stun multiplier, 1 is default, remember to write 'f' at the end of the number for it to be a float (byte) (optional) stun chance, default is 1, remember to cast as a byte Option 2: (string) 'complete immunity' - this is the only accepted string for option 2 (int) npc type