Accesing variable previously declared?

Questions & Answers
1

Hi everyone, I’m having a difficult time trying to make a very simple animation.

I have a sphere (testObject1) which I want to move left and right, and switch this movement when it collides to with a rigidbody.

So, I came up with this:

var speed = 0.10;
var dropPoint = 1;

function Update () {
	
	if(dropPoint == 1){
		transform.Translate(0, 0, speed);
	}else{
		transform.Translate(0, 0, speed - (speed * 2));
	}	
}

function OnCollisionEnter(collision : Collision) {
    for (var contact : ContactPoint in collision.contacts) {
    
        if(collision.collider == "testObject3"){
			dropPoint = 2;
        }else{
			if(collision.collider == "testObject2"){
				dropPoint = 1;
			}
        }
        if(collision.collider != "testFloor"){
			print(collision.collider);
        }
    }
}

So, when I hit play, the sphere starts moving in Z direction, collides with the testObject3 and it keeps going in the same direction…

What am I doing wrong here?

Thanks!

2

try this:

  if(dropPoint == 1){
       transform.Translate(0, 0, speed);
    }else if(dropPoint ==2){
       transform.Translate(0, 0, speed - (speed * 2));
    }  
}

Debug the colliders too, make sure they are colliding correctly.

Also, instead of using 

if(dropPoint ==2)

you might want to use

if(dropPoint >1)

Just for versatility.

3

Your problem is that you can’t compare a Collider with a string!

I guess “testObject3” and “testObject2” are the names of those GameObjects, right? So you have to check the name of the GameObject:

if(collision.collider.name == "testObject3"){
    dropPoint = 2;
}
else if(collision.collider.name == "testObject2"){
    dropPoint = 1;
}

Another funny thing is your “speed - (speed * 2)” :smiley:
It’s the same as “-speed”