Cannot access non-static variables from non-static method in struct

I have a non-static method ComputeProbs in my Biome struct, but I get CS0120 on treeResolution and TreeIntervals. "An object reference is required for the non-static field, method, or property" The variable treeResolution and TreeIntervals method are both public and non-static.

Code (CSharp):

1.    [System.Serializable]
2.     public struct Biome {
3.        
4.         public string name;
5.  
6.         [Tooltip("dirt: 0, moss: 1, rock: 2, sand: 3, snow: 5")]
7.         public int[] textures;
8.  
9.         [Tooltip("Approx amount of trees in 1/4 chunk")]
10.         public float treeDensity;
11.  
12.         public GameObject[] treePrefabs;
13.         public BiomeSpawnConditions[] spawnConditions;
14.  
15.         [System.NonSerialized]
16.         public float treeChance;
17.  
18.         [System.NonSerialized]
19.         public float[] treeIntervals;
20.  
21.         public void ComputeProbs() {
22.             treeChance = treeDensity * 4 / Mathf.Pow(treeResolution, 2);
23.             treeIntervals = TreeIntervals(treePrefabs);
24.         }
25.     }

 

It means TreeIntervals requires an object, you can't just call it like that.

 

Are you missing a

new

on line 23?

 

@RadRedPanda How would I call TreeIntervals()? I have called the function this way outside of the struct with no errors.

 

I don't know, you didn't show what it looks like, so I have no idea what the method does.

 

Sorry, here is the code:

Code (CSharp):

1.    float[] TreeIntervals(GameObject[] trees) {
2.         int sum = 0;
3.         foreach (GameObject tree in trees) {
4.             sum += tree.GetComponent<Tree>().frequencyStrength;
5.         }
6.         float[] intervals = new float[trees.Length];
7.         for (int i = 0; i < trees.Length; i++) {
8.             intervals[i] = (float) trees[i].GetComponent<Tree>().frequencyStrength / sum;
9.         }
10.         for (int i = 0; i < trees.Length; i++) {
11.             if (i > 0) {
12.                 intervals[i] += intervals[i - 1];
13.             }
14.         }
15.         return intervals;
16.     }

 

Is TreeIntervals inside of a class? Inside the class, it will assume it's using itself as the reference. Your struct though, won't have a reference to that class.

 

Yes, TreeIntervals is inside of a class. The struct is inside of the same class, so I assumed that you could access the variables and methods normally.

Thanks, I think I understand now.

 

I updated my code, and it works!
Thank you @RadRedPanda.