The halfway line, aka the midfield line or center line, runs the width of the pitch, dividing it into two equal halves. The left half (in TV view) will be the defensive half, and the right half will be the offensive half
soccer_halfway_line(pitch_width = 0, feature_thickness = 0)
A data frame containing the bounding coordinates of the halfway line
The width of the pitch
The thickness of the goal line
The line thickness will be uniform for all features on the pitch