I am trying to shoot a projectile from one mesh to another. I connected them with a line, but now I'm struggling to move the projectile along this path. The translateOnAxis function didn't seem to do the job. Do you have any suggestions for how to move an object following a line? Alternatively, are there other methods that might work better? Thank You, Thomas
Imagine you have an object called object1 (which is of type THREE.Object3D()) and you've set its initial position like this:
object1.position.set( 1, 2, 3 );
var position2 = new THREE.Vector3( 11, 12, 13 );
Now, if you want object1 to smoothly move to position2,
You can make use of the tween.js library and create a transition between the two positions:
setupObjectPositionTween( object1, object1.position.clone(), position2,
2000, 100, TWEEN.Easing.Linear.None ); // duration, delay, easing
by employing:
function setupObjectPositionTween( object, source, target, duration, delay, easing )
{
new TWEEN.Tween( source )
.to( target, duration )
.delay( l_delay )
.easing( l_easing )
.onUpdate( function() { object.position.copy( source ); } )
.start();
}
UPDATE:
Don't forget to include the following in your animation loop:
TWEEN.update ();
and within the init() function:
TWEEN.removeAll(); // clear out tween buffer
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