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int num = 5;
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string str = "Hello World!";

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using UnityEngine;

public class ValueTypeReferenceTypeExample : MonoBehaviour
{
    void Start()
    {
        // Example of a value type
        int num1 = 5;
        int num2 = num1;
        num2 = 10;

        Debug.Log("num1: " + num1); // Output: num1: 5
        Debug.Log("num2: " + num2); // Output: num2: 10

        // Example of a reference type
        int[] array1 = new int[] { 1, 2, 3 };
        int[] array2 = array1;
        array2[0] = 5;

        Debug.Log("array1[0]: " + array1[0]); // Output: array1[0]: 5
        Debug.Log("array2[0]: " + array2[0]); // Output: array2[0]: 5
    }
}

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using UnityEngine;

public class GameController : MonoBehaviour
{
    public int score;
    public GameObject[] pickups;

    void Start()
    {
        // Set the score to 0
        score = 0;

        // Find all of the pickups in the scene
        pickups = GameObject.FindGameObjectsWithTag("Pickup");

        // Set the initial position of the pickups
        foreach (GameObject pickup in pickups)
        {
            pickup.transform.position = new Vector3(Random.Range(-5f, 5f), 0.5f, Random.Range(-5f, 5f));
        }
    }

    void Update()
    {
        // Check for player input to pick up the pickups
        if (Input.GetKeyDown(KeyCode.Space))
        {
            // Loop through all of the pickups
            foreach (GameObject pickup in pickups)
            {
                // Get the distance between the player and the pickup
                float distance = Vector3.Distance(transform.position, pickup.transform.position);

                // If the distance is less than 1.5, pick up the pickup and increase the score
                if (distance < 1.5f)
                {
                    // Destroy the pickup
                    Destroy(pickup);

                    // Increase the score by 1
                    score += 1;
                }
            }
        }
    }
}



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