Code Sketch

clear

val t1 = newTurtle(random(-200, 200), random(-200, 200))
val t2 = newTurtle(random(-200, 200), random(-200, 200))
val t3 = newTurtle(random(-200, 200), random(-200, 200))
val t4 = newTurtle(random(-200, 200), random(-200, 200))
val t5 = newTurtle(random(-200, 200), random(-200, 200))

def mouseTracker() {
    onMouseMove { (x, y) =>
        t1.towards(x, y)
        t2.towards(x, y)
        t3.towards(x, y)
        t4.towards(x, y)
        t5.towards(x, y)
        towards(x, y)
    }
}

mouseTracker()