Help with Lerp inside a Coroutine

Hi, I'm writing a Purchase code that uses coins when a button is pressed, animating it and then stopping at the coins remaining. Actually, it works on the current script.

For simulation, current coins = 50,000 & payment = 5,000 (both int)

Code (CSharp):

1.  
2. void Update()
3.     {
4.         if (isButtonpressed)
5.         {
6.             StartCoroutine(AnimateCoins());
7.         }
8.     }
9.  
10. void CalculateCoins(int i)
11.     {
12.         switch (i)
13.         {
14.             case 1: // Button 1 is pressed
15.                 coinsDifference = 0;
16.                 currentCoinsTemp = currentCoins;
17.                 t = 0;
18.  
19.                 coinsDifference = currentCoinsTemp - payment1;
20.                 currentCoins = coinsDifference;
21.                 isButtonpressed = true;
22.  
23.                 Debug.Log("BUY 1 Pressed!");
24.                 break;
25.         }
26.     }
27.  
28. IEnumerator AnimateCoins()
29.     {
30.         yield return new WaitForSeconds(0f);
31.  
32.         t += 2f * Time.deltaTime;
33.         currentCoins = (int)Mathf.Lerp(currentCoinsTemp, coinsDifference, t);
34.         currentCoinsText.text = currentCoins.ToString();
35.  
36.         Debug.Log(currentCoins);
37.  
38.         if (currentCoinsText.text == coinsDifference.ToString())
39.         {
40.             isButtonpressed = false;
41.             StopAllCoroutines();
42.         }
43.     }
44.  

But here's the problem, the lerp doesn't work when you click it in a rapid succession (i.e. double tap the button quickly) On a normal click, a 50,000 value will lerp to 45,000 (payment cost to subtract is 5,000). While on a rapid click (two times), it sometimes stops around 43,586 or something like that, and the 2nd rapid click doesn't work (supposedly if you tap 2 times quickly, coins should be 40,000. I'm just stopping the lerp with a text condition so apologies for my non-efficient code.

Is there a way to wait for the lerp to 40,000 first? and then players can pay again? Any help and code optimization tip is appreciated. Thanks.

 

Correction: "Is there a way to lerp to 45,000 first?"

 

Update: Nevermind, I found a way to fix this. Thanks for viewing! (Thread solved)