[SOLUTION] GetRecordIdFromForm() - Yet another complementary function to GetFormFromFile()

[niston]

Will return the plugin-relative record ID for references defined in plugins. For references created at runtime, the full form ID is returned.
The record ID is the form's ID without the plugin index, ie FE001003 becomes 3. Likewise, 4C006481 becomes 6481.
However, FF040205 will remain FF040205.

Int Function GetRecordIdFromForm(ObjectReference queryForm)
	Int formId = queryForm.GetFormID()
	Int msByte = Math.RightShift(formId, 24)
	If (msByte == 0xff)
		; not a plugin defined reference
		Return formId
	EndIf

	Int recordId = 0
	If (msByte == 0xfe)
		; light plugin
		recordId = Math.LeftShift(formId, 20)
		recordId = Math.RightShift(recordId, 20)		
	Else
		; regular plugin
		recordId = Math.LeftShift(formId, 8)
		recordId = Math.RightShift(recordId, 8)
	EndIf
	
	Return recordId
EndFunction

Requires F4SE.