Unity 3 GD HotShot-Tutorial Problem with an C#-Array

Questions & Answers
1

Hey Folks, i’ve got a Problem. I bought a book Unity 3 Game Development HotShot, which is pretty awesome. But i have a problem.
There is a task, where i have to make a little 2D project. So one has to make a SpriteManager class, this here:

using UnityEngine;

using System.Collections;

public class CharacterController_2D : MonoBehaviour
{

public float f_speed = 5.0f;
public Manager[] loopSprites;
public int in_direction;

// Use this for initialization
void Start () 
{

	in_direction = 1;
	
	for(int i = 0; i<loopSprites.Length; i++)
	{
		loopSprites[1].init();
	}
	
	Camera.main.transform.position = new Vector3(transform.position.x, transform.position.y, Camera.main.transform.position.z);



}

// Update is called once per frame
void Update () 
{
	
	if(Input.GetButton("Horizontal"))
	{
		in_direction = Input.GetAxis("Horizontal") < 0 ? -1:1;
		rigidbody.velocity = new Vector3((in_direction*f_speed), rigidbody.velocity.y,0);
		
		// Reset Stay animation frame back to the first frame
		
		loopSprites[0].resetFrame();
		
		//Update Walking animation
		
		loopSprites[1].updateAnimation(in_direction,renderer.material);
		
	}

}


public void LateUpdate()
{
	
	//Update Main Camera
	
	Camera.main.transform.position = new Vector3(transform.position.x, transform.position.y, Camera.main.transform.position.z);
}



public class Manager
{
	public Texture2D spriteTextur;
	public int in_framePerSec;
	public int in_gridX, in_gridY;
	
	private float f_timePercent;
	private float f_nextTime;
	private float f_gridX, f_gridY;
	private int in_curFrame;
	
	
	public void init()
	{
		f_timePercent = 1.0f/(float)in_framePerSec;
		f_nextTime = f_timePercent;
		
		f_gridX = 1.0f/(float)in_gridX;
		f_gridY = 1.0f/(float)in_gridY;
		in_curFrame = 1;
	}
	
	public void updateAnimation(int _direction, Material _material)
	{
		// Update Material
		
		_material.mainTexture = spriteTextur;
		//Update Frame by Time
		
		if(Time.time>f_nextTime)
		{
			f_nextTime = Time.time + f_timePercent;
			in_curFrame++;
			
			if(in_curFrame > in_framePerSec)
			{
				in_curFrame = 1;
			}
		}
		
		_material.mainTextureScale = new Vector2(_direction*f_gridX, f_gridY);
		
		 int in_col = 0;
		if(in_gridY>1)
		{
			in_col = (int)Mathf.Ceil(in_curFrame/in_gridX);
		}
		
		if(_direction == 1)
		{
			_material.mainTextureOffset = new Vector2(((in_curFrame)%in_gridX) *f_gridX, in_col*f_gridY);
		}
		else
		{
			//Flip Texture
			_material.mainTextureOffset = new Vector2(((in_gridX+(in_curFrame)%in_gridX))*f_gridX, in_col*f_gridY);
		}
	}
	
	public void resetFrame()
	{
		in_curFrame = 1;
	}
}

}

So, then i drag’n’dopped the Script to my Player-Object and looked up at the inspector.
But at the ScriptComponent i just can see these two variables

F_Speed 5
In_Direction 0

No SpriteManager array called loopSprites which i can work with in the inspector.
The Tutorialbook is telling me to go to “Loop Sprites” and to set the Size to 2 and then setting the Elements in a certain way.

Can someone please tell me, what did i do wrong. It must be somewhere in the Code.

I have to mention: The Tutorial-Code is written in Java-Script, i “translated” it into C#, cause i am more familiar with C# than JavaScript (please no wars about which language is better)

2

Alright, i got the problem. I forget to put before making the other SpriteManager class a

[System.Serializable]

Before the class itself. At least it worked with that. I hope it’s the right solution, if anyone got some other ideas, suggestions, solutions etc. i’ll be looking forward to read them :slight_smile:

3

I experienced the same problem. Is there any chance you can explain what you did to make it work because I tried doing what you said and it didn’t work for me.

This is what I did:

"...
public function LateUpdate() : void {
//Update Main Camera
  Camera.main.transform.position = new Vector3(transform.position.x, transform
position.y, Camera.main.transform.position.z);
    
    }
    
[System.Serializable]

class SpriteManager {
..."