Question by Clunk · Oct 02, 2011 at 05:15 PM · collision puzzle match

Match 3 objects and destroy!?!?!

I cannot get my head around this one. I simply want to match 3 objects of the same type and destroy them all once there are 3 connected. I have tried parenting and destroying when childCount == 3. I have tried fixedJoint.connectedBody. I have tried OnCollisionEnter, if tags are equal, count+=1, if(count>=3), etc.... It works on some connections, but not most. Here is the code I have so far, this one works the best out of what I have tried. Next I will try Raycast, but I want to find if anyone can help w/ this. I have 3 cubes just for testing. They are 1 Red, 1 Green, 1 Blue cube, tagged R, G, and B. They are all non-kinematic rigidbodies, as well as box colliders.

var count : int = 1;

function OnCollisionStay (collision : Collision)

{

 if(collision.gameObject.tag == gameObject.tag)

 {

     count+=1;

     collision.transform.parent = transform;

 }

 

 if(transform.childCount >= 2 && count>= 3)

 {

     Destroy(gameObject);

     count = 1;

 }

}

Add comment · Show 6

Julien-Lynge · Oct 02, 2011 at 05:23 PM 0

@Clunk

What you want to do sounds very reasonable, but I just need a bit more information before I can help you. The question I have is: what are the conditions under which you want to destroy the three objects? And related: how do you know which 3 objects to destroy?

For instance, 'I want to destroy 3 cubes when they collide with the player. The 3 cubes are all children of the same object.' Or: 'I want to destroy the closest 3 cubes to the player every 10 seconds.'

Clunk · Oct 02, 2011 at 07:10 PM 0

It is a tetris style Drop, I made it where a random cube is picked to drop at a random position offset. When 3 cubes of a kind are of the same color, I want all 3 to be destroyed. I have everything working as far as how to detect what cube is what color. The blue cubes only destroy if they touch 2 other blue cubes. Same w/ red and green cubes. It's just that sometimes it works, but it doesn't work if they match vertically or horizontally. It only works if they are in an L shape, like one cube in the center, and a cube on the top or bottom, and another on the right or left. This is because the corners of all 3 cubes are touching, or colliding. In other words, if there are 3 in a row veritcally or horizontally, it doesn't work, because it only works if they are all 3 colliding w/ each other at once. I hope I explained this well enough to understand. It's like the count+1 variable adds up no matter where collisions occur. Should count be a static variable?

mogambo · Jan 05, 2014 at 04:44 PM 0

Thanks a lot $$anonymous$$r Clunk. You saved my life in a way. your question is very helpful to me. i could not answer your question though. But, your post solved my similar other problem.