detect which surface touching by raycast

Questions & Answers
1

hi guys. im trying to do build block mode something like in minecraft.

my problem is blocks are not align at the same line. for doing this i need to findout ray touching the which surface of the existed block.

my script working with sendmessage:

if(hit.collider.gameObject.name == "stoneBlock(Clone)"){
     		gui.yazi = "Block";
     		 hit.transform.SendMessage("position", 1);
     	}

and receiver for now:

function position(i:int){
	if(i == 1){
		Debug.Log(transform.position);
	}
}

any ideas for receiver?

2

Get the collision vector from the Hit.

Compare it to the forward vector of the block’s transform.