Help with placing and destroying blocks

[jdrew2000]

I got these scripts here:

var blockLayer : LayerMask = 1;
var range : float = Mathf.Infinity;
var hit : RaycastHit;

function Update () {
if (Input.GetMouseButtonDown(0))
Build();
if (Input.GetMouseButtonDown(1))
Erase();
}

function Build() {
if (HitBlock()) {
var cube = GameObject.CreatePrimitive(PrimitiveType.Cube);
cube.transform.position = hit.transform.position + hit.normal;
}
}

function Erase() {
if (HitBlock())
Destroy(hit.transform.gameObject);
}

function HitBlock() : boolean {
return Physics.Raycast(transform.position, transform.forward, hit, range, blockLayer);
}

and

for (var y = -4; y < 5; ++y)
for (var x = -4; x < 5; ++x) {
var cube : GameObject = GameObject.CreatePrimitive(PrimitiveType.Cube);
cube.transform.position = transform.position + Vector3(x, 0, y);
}

I want the player to not be able to destroy the terran such as a plane, right now it just destroys the game object. If you don’t know how to do that if I could just color the cube floor or add a picture to it as if it was a plane then that would be great too.

Sorry I am new to unity and not the best with javascript.

[robertbu]

In the future you need to format your code using the “101/010” labeled button. If the code is not easily readable, then your are far less likely to get any help.

I have difficulty understanding your question. What I think you want is that destroying should be limited to blocks, so other elements like the plane are not destroyed when clicked on. One way would to create a tag in the tag manager…something like “Block”. Then right after you create the block you would code:

cube.tag = "Block"; 

And then when you check for a hit you could do something like:

function HitBlock() : boolean {
	if (Physics.Raycast(transform.position, transform.forward, hit, range, blockLayer)) {
		if (hit.collider.gameObject.tag == "Block")
			return true;
		}
	return false;	
	}

That way, only game objects with the “Block” tag would be destroyed.