Click and Drag an GameObject

Unity Engine
1

I want to make a little Game in a adventure style. My wish is, that the player can click on an 3D Object, like an cube, and Drag it to any position in the Gameroom ( You must see the position). My second wish is, that an specific object transform itself when it touchs an other (specific) object.

I began scripting in unity script a month ago, and i think, it’s one of the easyiest scripting languages. But with my two problems above, I don’t find a solution.

I began with:

function OnMouseDrag ()
{
	rigidbody.position = Input.mousePosition;
}

but the problem is, that " Input.mousePostion " give vectors for the mouseposition ON the screen and not in the game… At the left Bottom, it’s 0;0 and at the right top the screen width / high.

My second code second code starts with

function OnCollisionEnter(collision : Collision) {
}

But then, the function is played every time my objects hits another, like the ground… but it have to play this function only when it hits a specific object. I thought about OnCollisionEnter(collision : GameObject) but it ends in an error.

I will be very happy, when anyone can help me…

PS: Sorry for my bad English (if it is bad…) I’m german… You can correct me, if you want…

2
3

Also look at the lightning scene in the procedural examples on the Unity site. In that, you can move any of the 5 “lightning balls”. The script used there could help you.

4

Thanks to both of you. I solvered now my first problem… Have you any answers for the second one?

PS: Sorry for my bad English (if it is bad…) I’m german… You can correct me, if you want…