koobas.hobune.stream
Code error with dynamic arrays
Hello everyone. How I declare a bidimensional structure (matrix) in which each cells contains a undefined-size array of int?
void CheckSubMeshesLocation()
{
_subMeshesLocation = new int[(int)_gridN,(int)_gridM];
for(int i=0;i<_gridN;i++)
{
for(int j=0;j<_gridM;j++)
{
for(int k=0;k<_subMeshArray.Length;k++)
{
_subMeshesLocation[i,j] = new int[_subMeshArray.Length];
}
}
}
}
int[,][] _subMeshesLocation;
Best Answer
The line
_subMeshesLocation = new int[(int)_gridN,(int)_gridM];
should be
_subMeshesLocation = new int[(int)_gridN,(int)_gridM][];
Also you are declaring i*j*k arrays when you only need i*j arrays of variable length.
Here is an example of working code.
using UnityEngine;
public class NewBehaviourScript : MonoBehaviour {
int[,][] _subMeshesLocation;
int iSize=3;
int jSize=3;
void Start(){
_subMeshesLocation = new int[iSize, jSize][];
for(int i=0; i<iSize; i++){
for(int j=0; j<jSize; j++){
// for each (i, j) position creates an array of random size
int[] temp=new int[Random.Range(0, 10)];
// and then fills it with 0, 1, ... array.Length-1
for(int k=0; k<temp.Length; k++){
temp[k]=k;
}
_subMeshesLocation[i, j]=temp;
}
}
// prints back all the values
for(int i=0; i<_subMeshesLocation.GetLength(0); i++) {
for(int j=0; j<_subMeshesLocation.GetLength(1); j++) {
int[] temp=_subMeshesLocation[i, j];
for(int k=0; k<temp.Length; k++) {
Debug.Log(temp[k]);
}
}
}
}
}
