Fast helper functions.
This function will output all lines within a string that contain the filter string.
This function will append a string as a new line on an existing string and remove older line entries if the "lineLimitReached" bool is true.
This function is mainly used to spawn an actor given a world context and mouse screen position.
This function will calculate a world position based on a screen position (absolute) and a visibilty trace of the desired length.