This uses the Unity game engine and is coded in C#

Hello! I am trying to implement a way to have a two finger "pinch" zoom in this code for a game I'm making. Below is my current camera movement code. This is for a game that has a camera similar to pokemon go's camera where you can use two fingers to zoom in and zoom out from the player's third person perspective. Below is my current code for the project, there are other programs I have written but you need not need any information outside of this program. The line where it says if(touchcount == 2){} is how you start it, but I don't know where to go from there. I have a way for the player to have an (almost) 360 degree radius around the player in the if(touch count > 0 code) as a sort of reference.

I am in no hurry so take your time.

Thank you!!

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class camera_movement : MonoBehaviour

{

[SerializeField] private Camera cam;

[SerializeField] public Transform player;

//all camera_states: "low" | "high"

[SerializeField] public static string camera_state = "low";

public float distance_to_target;

//"low" swipe var's

private Vector2 previous_position;

private GameObject camera_parent;

public float rotation_speed;

void Start()

{

Transform originalParent = transform.parent;

camera_parent = new GameObject ("camera");

transform.parent = camera_parent.transform;

camera_parent.transform.parent = originalParent;

camera_dist();

}

void Update()

{

switch (camera_state)

{

//"low" view

case "low":

swipe_control();

camera_dist();

break;

//"high" view

case "high":

swipe_control();

break;

}

}

void camera_dist()

{

cam.transform.position = player.position;

camera_parent.transform.position = player.position;

int buffer_up = 20;

cam.transform.Translate(new Vector3(0, buffer_up, - distance_to_target));

}

void swipe_control()

{

if (Input.touchCount > 0)

{

foreach (Touch touch in Input.touches)

{

if (touch.phase == TouchPhase.Began && touch.fingerId == 0)

{

previous_position = touch.position;

}

if (touch.phase == TouchPhase.Moved || touch.phase == TouchPhase.Stationary)

{

if (touch.fingerId == 0)

{

float x_difference = touch.position.x - previous_position.x; //t$$anonymous$$s calculates the horizontal distance between the current finger location and the location last frame.

if (x_difference != 0)

{

camera_parent.transform.Rotate (Vector3.up * x_difference * rotation_speed);

}

previous_position = touch.position;

}

}

if (touch.phase == TouchPhase.Ended && touch.fingerId == 0)

{

previous_position = touch.position;

}

}

}

if (Input.touchCount == 2)

{

}

}