How to set up items- triggers with rigidbodies

[superventure]

Okay, so I have some items that the player can pickup/drop. I need the items to be 'pickupable' just on triggerstay, and be dropped (and fall to the floor) on key press.

I have a box collider set to trigger on the item so that I can pick it up, but how do add a rigidbody and another collider so that it has gravity? I tried just that- adding another box and rigidbody, but then I can't pick it up anymore. I also tried to add an empty child object with a box collider intead so that I could have a rigidbody, but I still couldn't pick it up anymore. I thought it was because the new pysical collider was bigger than the trigger box, but even after making the pysics box smaller, no go.

How can I set this up?

Also, I need the physical box collider to be disabled when held- the player is blocked from moving properly when holding another box collider in their hand

thanks for any help!

[superventure]

The moving trigger problem is very weird...and ANNOYING. Thanks guys for your help. I guess I am stubborn though, because I found a work around for a moving trigger:

If you want an object to both be a trigger and have pysics, You can have two colliders: the first collider must not be set to a trigger, then add your rigidbody, then add a second trigger(I used a sphere collider) and make it envelope the first collider, and set THAT to a trigger. For some reason, if you mess up that order of operations, the trigger will not be recognized anymore by the engine.

On a side note, the item when held was blocking movement to the player because of the active boxcollider. I tried to set it to a trigger just when equipped (and vise a versa when dropped), but again for some reason, it would only work one time only. SSOOOOO...

I dropped setting it to a trigger/not and added this bit of code

function Start() {        
ignoreCollision("Player");
}

function ignoreCollision(tag: String) {    
var objects = GameObject.FindGameObjectsWithTag(tag);    
for (o in objects) {        if (o.GetComponent("Collider") && o != gameObject) Physics.IgnoreCollision(collider, o.collider);    
}
}

[Statement]

There are problems with moving triggers not sending trigger messages, so my suggestion would be to use OnCollisionEnter instead. If you are stubborn still, try making a child object that has the trigger. But I doubt you'll get it working. It will work in some cases (such as something walking into the trigger) but not in other cases (such as the trigger "walking into" something).