Augmented Reality Tutorial#5: Scale and drag multiple objects individually.

Описание: In this tutorial, I am going show you how to scale and drag multiple objects individually in Augmented Reality with the touch screen.

Download Scripts: https://drive.google.com/open?id=0B4r...

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Scripts:

#Script1: CSharpscaling

using UnityEngine;
using System.Collections;

public class CSharpscaling : MonoBehaviour {


public float initialFingersDistance;
public Vector3 initialScale;
public static Transform ScaleTransform;


void Update (){
int fingersOnScreen = 0;

foreach(Touch touch in Input.touches) {
fingersOnScreen++; //Count fingers (or rather touches) on screen as you iterate through all screen touches.

//You need two fingers on screen to pinch.
if(fingersOnScreen == 2){

//First set the initial distance between fingers so you can compare.
if(touch.phase == TouchPhase.Began){
initialFingersDistance = Vector2.Distance(Input.touches[0].position, Input.touches[1].position);
initialScale = ScaleTransform.localScale;
}
else{
float currentFingersDistance = Vector2.Distance(Input.touches[0].position, Input.touches[1].position);

float scaleFactor = currentFingersDistance / initialFingersDistance;

//transform.localScale = initialScale * scaleFactor;
ScaleTransform.localScale = initialScale * scaleFactor;
}
}
}

#Script2:onClickForScaling

using UnityEngine;
using System.Collections;

public class onClickForScaling : MonoBehaviour {
void OnMouseDown() {
CSharpscaling.ScaleTransform = this.transform;
}
}


#Script3:DragObject1

using UnityEngine;
using System.Collections;

public class DragObject1 : MonoBehaviour {

Vector3 dist;
float posX;
float posY;

void OnMouseDown(){
dist = Camera.main.WorldToScreenPoint(transform.position);
posX = Input.mousePosition.x - dist.x;
posY = Input.mousePosition.y - dist.y;

}

void OnMouseDrag(){
Vector3 curPos =
new Vector3(Input.mousePosition.x - posX,
Input.mousePosition.y - posY, dist.z);

Vector3 worldPos = Camera.main.ScreenToWorldPoint(curPos);
transform.position = worldPos;
}
}

#Script4:Rotate

using UnityEngine;
using System.Collections;

public class Rotate : MonoBehaviour {

// Update is called once per frame
void Update () {
transform.Rotate(0,20*Time.deltaTime,0);
}
}