koobas.hobune.stream
making an object move up and down
hello, I have an object i want to pop up and down through the terrain/ hole in the terrain, like the spikes that go up and down in the sonic the hedgehog games.
ideally i would like the spikes to pop up wait a few seconds then pop back down for a few seconds.
any ideas how to script this (i tend to code in javascript)?
thanks matt
To make an object move up and down you mess with the transform of the gameobject. Since you want to move the object mess with the position. http://unity3d.com/support/documentation/ScriptReference/Transform-position.html
In order to get something to happen after a few seconds use the yield and waitforseconds command. http://unity3d.com/support/documentation/ScriptReference/WaitForSeconds.html
You can also use the Animation Editor to create the movement, then a smaller JS to trigger it
Or if it is something you always want playing you won't even have to worry about a JS to trigger it. Just check the "Play Automatically" box and set the wrap mode to Loop.
pragma strict
ar upDown:float; var speed:int = 2; var hightDiv:int = 150 var t:float; function Start () {
}
function Update () {
transform.Translate(Vector3.up upDown); t += speed (Time.deltaTime); upDown = (Mathf.Sin(t))/hightDiv;
}
