koobas.hobune.stream
This question was
closed Mar 19, 2014 at 05:19 AM by
Fattie for the following reason:
Duplicate Question
[Android]How to move an object and have it snap to grid?
Right now I have a script that moves the object I touch to where ever I move my finger. How would I get it to snap to a grid? Here is my script:
#pragma strict
var squareSize : float;
function Start () {
}
function Update () {
if(Input.touchCount > 0)
{
var hit : RaycastHit;
var vektor = Vector3(Input.GetTouch(0).position.x,Input.GetTouch(0).position.y,0f);
var ray : Ray = Camera.main.ScreenPointToRay (vektor);
var coor = Vector3(vektor.x, vektor.y, 5f);
var pos = Camera.main.ScreenToWorldPoint(coor);
if (Physics.Raycast(ray, hit, Mathf.Infinity)) {
hit.transform.position.x = pos.x;
hit.transform.position.y = pos.y;
}
}
}
Any advice? Thanks in advanced.
You could store the grid positions in a 2D array and then check in update if the object is within a certain distance from the center of those positions.
Or
you could build a grid of box colliders and OnTriggerEnter, snap it to the center.
Best Answer
It's easy, you just find the nearest whole grid position to your raycast hit point by using Mathf.RoundToInt.
If the grid is in increments of 1:
var touchedCoordsX : int = Mathf.RoundToInt(hit.point.x);
var touchedCoordsY : int = Mathf.RoundToInt(hit.point.y);
var touchedCoordsZ : int = Mathf.RoundToInt(hit.point.z);
var gridCoords = Vector3(touchedCoordsX , touchedCoordsY , touchedCoordsZ );
