How do I make an enemy jump like a half life headcrab in a platformer

Making an enemy that jump like the half life headcrab but it latches on to you and has a timer before it explodes giving the player a chance to get it off of ya

How i want it to work is to predict the distance to jump at the player and calculate the jump arch while also predicting the players movement

If you want these jumps to always be successful, you can just use MoveTo behavior (with fast speed and 0 deceleration settings), moving to player's head position on every tick.

If you want these headcrabs to miss sometimes, you can run MoveTo only once, aiming at the player's head position +/- a small offset, depending on the player's direction or movement.

For example, if the player is moving to the left:

HeadCrab MoveTo (Player.imagepointX("head"), Player.imagepointY("head")-30)