bad engrish incoming
Hi everyone. A few days ago i posted a question about a weird error that i encountered while experimenting new things. A kind user helped me for a point but his solution for the 2nd problem didn’t worked (as the other solutions expressed by the other users)
Basically my target is to renderize 2 or more letters at random. One of them have to be touched to continue. My approach is that: create a script to attach to the camera: it must renderize the shapes, wait for stuff (touch events) to happen and then destroy 'em and renderize other letters. The letters are just rotated plane prefabs with a texture.
Every prefab letter got an helper script that basically is just useful for the principal script to say what letter must be touched.
So: those are the 2 script:
The one to attach to the camera
using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.Threading;
public class StuffRenderer : MonoBehaviour {
//a complete list of the figures that can be shown during the game.
public List<Transform> objectList = new List<Transform>();
//a list of the figures actually shown in the game
public List<GameObject> inGame = new List<GameObject>();
//the letter a
public Transform a;
//the letter b
public Transform b;
//i use this gameobject to renderize prefabs as gameobject
public GameObject toRenderize;
//difficulty. i'm not going to explain you why i need it but basically don't think to it as "difficulty". just a variable.
int difficulty;
//the first spawn is controlled. not the other ones.
bool firstLoop;
//max number of shapes that can be shown
const int MAX_TO_RENDER = 10;
//if spawning or waiting for other
bool inSpawn;
// Use this for initialization
void Start () {
firstLoop = true;
difficulty = 2;
objectList.Add(a);
objectList.Add(b);
inSpawn = true;
}
// Update is called once per frame
void Update () {
int toTouch = Random.Range(0, 1);
if (inSpawn)
{
int xPos;
int yPos;
Vector3 position;
if (firstLoop)
{
for (int i = 0; i < 2; i++)
{
xPos = Random.Range(-55, 55);
yPos = Random.Range(-75, 60);
position = new Vector3(xPos, yPos, 5);
toRenderize = Instantiate(objectList[i], position, Quaternion.identity) as GameObject;
inGame.Add(toRenderize);
//NOW: look at here:
if (i == toTouch)
{
toRenderize.SendMessage("setTarget");
}
}
firstLoop = false;
}
else
{
xPos = Random.Range(-55, 55);
yPos = Random.Range(-75, 60);
position = new Vector3(xPos, yPos, 5);
spawna(position);
}
inSpawn = false;
}
else
{
for (int i = 0; i < inGame.Count; i++)
{
if (i == toTouch)
{
//other stuff here to do in order to return at the inSpawn state.
}
}
}
}
void spawna(Vector3 position) //work in progress at that point
{
for (int i = 0; i < difficulty i < MAX_TO_RENDER; i++)
{
toRenderize = Instantiate(objectList[i], position, Quaternion.identity) as GameObject;
inGame.Add(toRenderize);
}
}
}
the one to attach to all of the prefabs:
using UnityEngine;
using System.Collections;
public class Letter : MonoBehaviour {
bool isTarget;
void Awake()
{
isTarget = false;
}
// Use this for initialization
void Start()
{
transform.Rotate(new Vector3(90, 180, 0));
}
void OnTriggerEnter(Collider other)
{
if (other.tag == "Letter")
{
transform.position = new Vector3(Random.Range(-55, 55), Random.Range(-75, 60), 5);
}
}
void OnMouseDown()
{
if (isTarget)
{
print("ok");
}
else
{
print("no");
}
}
void setTarget()
{
this.isTarget = true;
}
}
I drag two prefabs (until now i got only 2 but of course at the end there will be more) and a game object “renderizzabile” to the inspector’s script session. i attach both where they have to be attached. I run the game and that’s the result.
very weird. Endless list of A letters (but no Bs). Also that’s the inspector:
Very weird too. Since i say in the code to add to inGame the newly created toRenderize prefab, i can’t see where is the error.
Also, for every letter shown the console shows me this error:
NullReferenceException: Object reference not set to an instance of an object
StuffRenderer.Update () (at Assets/script/ingame/StuffRenderer.cs:61).
So i look at line61 of stuffrenderer and the incriminated line is that:
toRenderize.SendMessage("setTarget");
the strange thing is that if i delete the line (and the if statement of course) that’s the result:
Just what i wanted. But since i need to set one of the 2 letters as the one to touch, i need that sendmessage function.
So i ended up with 3 options:
- I’m a complete noob
- I’m not a noob because the error is hard to encounter and not a common thing
- i found a bug. YEEEEE bad unity3d
So can anyone help me? I really need a soultion. Many thanks in advance;
Regards, asduffo.
