$particle $(particle) ^ ^$(height) ^$(distance) 0 0 0 0 5 force
$particle $(particle) ^ ^$(height) ^-$(distance) 0 0 0 0 5 force
$particle $(particle) ^$(distance) ^$(height) ^ 0 0 0 0 5 force
$particle $(particle) ^-$(distance) ^$(height) ^ 0 0 0 0 5 force
