Having Error that i can't fix

Unity Engine
1

i have this error for these this
script

using UnityEngine;
using System.Collections;

public class Waves : MonoBehaviour {

    float aTemp;
    float bTemp;
    float dTemp;
    float cTemp;
    float x3Temp;
    float x2Temp;
    float x1Temp;


    GameObject enemy1;
    float nextWave;

    int path;
    int dirTemp;
    void Start () {
        nextWave = 2.0;
   
    }
   
    // Update is called once per frame
    void Update () {
        if (Time.time > nextWave) {
            //random number determines the path equation
            path = Mathf.Floor ( Random.Range(1.0,3.9));

            //random number determines direction of motion
            if (Random.Range (0.0, 1.0) < 0.5) {
                dirTemp = 1;
            }
            // if(Random.Range(0.0, 1.0) <0.5)
            else {
                dirTemp = -1;
            }
            //else (Random.Range(0.0, 1.0) < 0.5)
        }

        switch (path) {
        case 1:
            aTemp = Random.Range (0.02, 0.1);
            x2Temp = Random.Range (-6.0, 6.0);
            dTemp = Random.Range (-3.0, 5.0);
            break;

        case 2:
            aTemp = Random.Range (1.0, 3.0);
            bTemp = Random.Range (0.2, 0.4);
            dTemp = Random.Range (0.0, 5.0);
            break;
       
        case 3:
            aTemp = Random.Range (1.0, 3.0);
            bTemp = Random.Range (0.2, 0.4);
            dTemp = Random.Range (-5.0, 5.0);
            break;
        default:
            print ("Waves.cs: Update(): path out of range");
            break;
        }
        //switch (path)

        // Instantiate the enemy with starting position and path to follow
        for (int i = 0; i < 5; i++) {
            if (path < 3) {
                instEnemy (dirTemp * (-12.0 - i * 2.0), path);
            }// if (path < 3)
            else {
                instEnemy (14 + i * 2.0, path); // x= f(y)
            } // else (path < 3)

        }// for 1
        nextWave += 5.0;
        // if (Time.time > nextWave)
        // Update()
    }

    void instEnemy (float startPos, int path)
    {
        Vector3 pos;
        switch (path) {
        case 1:
            pos.x = startPos;
            pos.y = 0.0;
            break;
        case 2:
            pos.x = startPos;
            pos.y = 0.0;
            break;

        case 3:
            pos.x = 0.0;
            pos.y = startPos;
            break;
        default:
            print ("Wave.cs: instEnemy(): path out of range");
            break;
        }// switch (path)
        pos.z = 0;
        GameObject = Instantiate (enemy1, pos, Quaternion.identity);
        Enemy1 other = GetComponent (Enemy1);
        other.path = path;
        other.a = aTemp;
        other.b = bTemp;
        other.c = cTemp;
        other.d = dTemp;
        other.x3 = x3Temp;
        other.x2 = x2Temp;
        other.x1 = x1Temp;
        other.dir = dirTemp;
    } // instEnemy
}

2608455--182910--Error 1.PNG
2608455--182910--Error 1.PNG1337Ă—599 83 KB
2608455--182911--Error 2.PNG
2608455--182911--Error 2.PNG1339Ă—564 78.8 KB

2

Just saw your reply to the other thread! This one is due to the variable type, you need to tell the compiler it is a float, for instance…

nextWave =2.0;

becomes

nextWave =2.0f;

1 Like
3

so can you fix the other error

4

so for the number so i need to change all of them to float

5

Yes all the numbers that have a dot (Like 2.0), need to be marked as 2.0f. That should fix all your problems.

6

New Error my friend copy the script in your project you going see all the error

2608609--182913--2334.PNG
2608609--182913--2334.PNG1344Ă—93 8.93 KB

// Update is called once per frame
    void Update () {
        if (Time.time > nextWave) {
            //random number determines the path equation
            path = Mathf.Floor (Random.Range(1.0f, 3.9f));

            //random number determines direction of motion
            if (Random.Range (0.0f, 1.0f) < 0.5f) {
                dirTemp = 1;
            }
            // if(Random.Range(0.0, 1.0) <0.5)
            else {
                dirTemp = -1;
            }
            //else (Random.Range(0.0, 1.0) < 0.5)
        }

    void instEnemy (float startPos, int path)
    {
        Vector3 pos;
        switch (path) {
        case 1:
            pos.x = startPos;
            pos.y = 0.0f;
            break;
        case 2:
            pos.x = startPos;
            pos.y = 0.0f;
            break;

        case 3:
            pos.x = 0.0f;
            pos.y = startPos;
            break;
        default:
            print ("Wave.cs: instEnemy(): path out of range");
            break;
        }// switch (path)
        pos.z = 0;
        Instantiate (enemy1, pos, Quaternion.identity);
        Enemy1 other = GetComponent<Enemy1> ();
        other.path = path;
        other.a = aTemp;
        other.b = bTemp;
        other.c = cTemp;
        other.d = dTemp;
        other.x3 = x3Temp;
        other.x2 = x2Temp;
        other.x1 = x1Temp;
        other.dir = dirTemp;
    } // instEnemy
}
7

I’m not at a computer right now, but firstly I think you need to initialize your Vector3 “pos”.

Vector3 pos = new Vector3(0.0f, 0.0f, 0.0f); // or whatever values you want

Also, first chunk of code on line 5… you’re trying to directly store a random float into an int. It’s C#, so you need to do a proper cast.

8

partner i got the code from youtube a space shooter from since 2012 and it was java and so i convert it to C# that why i getting all these error i don’t what you by proper casting tomorrow is school

9

The best way to cast a float to an int you can just put (int) in front of the value, for example myInt = (int)myFloat; . I am at work so don’t have Unity on this PC so I can’t see which line your error is cropping up on.

For more information on casting look at Casting and type conversions - C# | Microsoft Learn

10

Okay so a have to do is create a function in front of path = mathf.Floor (Random.Range(1.0f,3.9f);
myInt = (int)myFloat;