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Question by jafethjuegos · Dec 15, 2020 at 01:09 AM · unity 2dscore

I want my counter not to drop below 0

When my player eats a blue apple he gives him a point but when he eats a red apple he decreases a point, if I eat I have 2 points and I eat 3 red apples it will be -1, I want to know if they can pass me a code so that do not drop below 0

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Answer by megargayu · Dec 15, 2020 at 01:35 AM

Can't you just use a simple if statement? For example, if your score was stored in a variable called score, before you decreased the number of apples, check if the number of apples is greater than 0:

 if (score > 0) 
 {
     score--;
 }

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Answer by tategarringer · Dec 15, 2020 at 01:56 AM

Check out the Mathf.Clamp documentation. This method will clamp the result of your equation to a minimum or maximum value so that if you had


 float score = 0;
 float blueApple = 1;
 float redApple = 1;
 
 private void Start()
 {
     score = Mathf.Clamp((blueApple * 2) - (redApple * 3), 0, Mathf.Infinity); //two blue apples and 3 red apples to recreate the example scenario
     Debug.Log($"Score value clamped to {score}");
 }


Your value would be clamped to 0 instead of -1.

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