scaling issue on click event - unity3d

Question

I am developing a 2D game in Unity. I've created a character panel in that to let player select different character. In panel, there are thumbnails for different character. By tapping on a particular character thumbnail, the player can view that character. The original scale of thumbnail is 1, and when player taps on thumbnail, the scale get doubles. All is fine till this. but issue is that whenever player taps on thumbnail its scale gets double. But i want to limit it to once only. I've used flag to stop scaling, But still issue is there. After flag it stops scaling, but now player can click on multiple character simultaneously. I am copying snippet here.
using UnityEngine;
using UnityEngine.UI;
using System.Collections;
public class ViewCharacter : MonoBehaviour {
[SerializeField]
private GameObject TempCharacterHolder ,TempCharacter, TempCharacterText, TempCharacterPrice;
// Use this for initialization
void Start () {
for (int i = 0; i < ShoppingManager.instance.ShoppingList.Count; i++) {
if (i == TheGameController.instance.GetSelectedCharacter ()) {
PlayerPrefs.SetInt ("CharacterScaled" + i, 1);
} else {
PlayerPrefs.SetInt ("CharacterScaled" + i, 0);
}
}
}
public void ViewCharacterFunc()
{
int ClickedCharacter = int.Parse (TempCharacterText.GetComponent<Text> ().text);
foreach (var characters in ShoppingManager.instance.ShoppingList) {
if (string.Equals (characters.CharacterName, TempCharacterText.GetComponent<Text> ().text)) {
if (PlayerPrefs.GetInt("CharacterScaled"+characters.CharacterName)==0) {
ShoppingManager.instance.IncreaseScale (TempCharacter, TempCharacterHolder);
for (int i = 0; i < ShoppingManager.instance.ShoppingList.Count; i++) {
if (i == ClickedCharacter) {
PlayerPrefs.SetInt ("CharacterScaled" + i, 1);
} else {
PlayerPrefs.SetInt ("CharacterScaled" + i, 0);
}
}
}
} else {
Color clr = characters.Character_Holder.GetComponent<Image> ().color;
clr.a = 1;
characters.Character_Holder.GetComponent<Image> ().color = clr;
Vector3 TempVector = characters.CharaacterObject.GetComponent<RectTransform> ().localScale;
TempVector.x = 1f;
TempVector.y = 1f;
characters.CharaacterObject.GetComponent<RectTransform> ().localScale = TempVector;
}
}
}
}

Answer 1

If I understand your question correctly, your characters scale numerous times when you click on them instead of scaling once.
If that's the case, I'd suggest controlling that with a bool:
bool hasTouched = false;
void OnMouseDown()
{
ShoppingManager.instance.Message.SetActive (false);
foreach (var characters in ShoppingManager.instance.ShoppingList) {
Color clr = characters.Character_Holder.GetComponent<Image> ().color;
clr.a = 1;
characters.Character_Holder.GetComponent<Image> ().color = clr;
if (!hasTouched) //if we havent touched
{
Vector3 TempVector = characters.CharaacterObject.GetComponent<RectTransform> ().localScale*Time.deltaTime;
TempVector.x = 1.0f;
TempVector.y = 1.0f;
characters.CharaacterObject.GetComponent<RectTransform> ().localScale = TempVector;
hasTouched = true; //then we scale it, and we have touched it
}
}