koobas.hobune.stream
Smooth rotation when dragging on mobile(android)
Alright so this script basically rotates an object when dragging across the screen with one finger. I would like to make it more "smooth" thou. Ive been trying alot of diffrent things like lerp and slerp and so on but nothing seems to work, so I thought I might as well post the working code here before I give up. I would greatly appricate if anyone knew to to make the rotation more smooth.
#pragma strict
private var oldMousePos : float;
private var curMousePos : float;
var old : float;
var touch1 : float;
var dual : boolean;
function Update ()
{
if (Input.touchCount == 1)
{
touch1 =Input.GetTouch(0).position.x;
if (Input.GetTouch(0).phase == TouchPhase.Began )
{
oldMousePos = (touch1/Screen.width);
old = 0;
}
if(Input.GetTouch(0).phase == TouchPhase.Moved )// This keeps running while finger is held down
{
curMousePos = (touch1/Screen.width) - oldMousePos;
if(!dual){
transform.Rotate(0,((curMousePos-old)*20000)*Time.deltaTime ,0);
}
else{dual = false;}
old = curMousePos;
}
}
if(Input.touchCount == 2 )
{
dual = true;
}
}
Also posted here: http://forum.unity3d.com/threads/136415-Smooth-rotation-when-dragging?p=926264#post926264
thanks for the code! appreciated. can i ask how can i drag an object with touch?
Have you tried sth like
float smooth = some_number; // bigger the number the faster it will rotate
Quaternion newRot = transform.Rotate(0,curMousePos-old,0);
transform.rotation = Quaternion.Lerp(transform.rotation,newRot,Time.deltaTime * smooth);
Not tested but it should work. this is c# though but It's easy to read
@jeff25, just simply drag this script into your gameobject. Make sure your gameobject tag is Draggable or you could change that.
using UnityEngine;
using System.Collections;
public class Drag : MonoBehaviour
{
// Touch distance to the object.
private float dist;
// Checking condition for touching the object.
private bool dragging = false;
// Distance of the object and the touch.
private Vector3 offset;
// Drag the object.
private Transform toDrag;
void Update()
{
Vector3 v3;
if (Input.touchCount != 1)
{
dragging = false;
return;
}
Touch touch = Input.touches[0];
Vector3 pos = touch.position;
// Started the touch.
if(touch.phase == TouchPhase.Began)
{
// Finger starts the touch.
RaycastHit hit;
Ray ray = Camera.main.ScreenPointToRay(pos);
// Finger on object.
if(Physics.Raycast(ray, out hit) && (hit.collider.tag == "Draggable"))
{
Debug.Log ("Here");
// Object to finger.
toDrag = hit.transform;
dist = hit.transform.position.z - Camera.main.transform.position.z;
v3 = new Vector3(pos.x, pos.y, dist);
v3 = Camera.main.ScreenToWorldPoint(v3);
offset = toDrag.position - v3;
dragging = true;
}
}
// Check finger drag the object to the display.
if (dragging && touch.phase == TouchPhase.Moved)
{
v3 = new Vector3(Input.mousePosition.x, Input.mousePosition.y, dist);
v3 = Camera.main.ScreenToWorldPoint(v3);
// Drag object at particular distance.
toDrag.position = v3 + offset;
}
// Finger release the Object/Screen.
if (dragging && (touch.phase == TouchPhase.Ended || touch.phase == TouchPhase.Canceled))
{
dragging = false;
}
}
}
