using UnityEngine;
using System.Collections.Generic;

public class ReduceTreeDensity : MonoBehaviour
{
    public Terrain terrain;
    public int keepEveryNthTree = 2;

    [ContextMenu("Reduce Tree Density")]
    void ReduceTrees()
    {
        if (terrain == null) terrain = GetComponent<Terrain>();
        if (terrain == null) return;

        var originalTrees = terrain.terrainData.treeInstances;
        var newTrees = new List<TreeInstance>();

        for (int i = 0; i < originalTrees.Length; i++)
        {
            if (i % keepEveryNthTree == 0)
                newTrees.Add(originalTrees[i]);
        }
 
        terrain.terrainData.treeInstances = newTrees.ToArray();
        Debug.Log($"Reduced trees from {originalTrees.Length} to {newTrees.Count}");
    }
}