Room-builder/Assets/Scripts/Ground/BuildingGridNode.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class BuildingGridNode {

    GridXZ<BuildingGridNode> grid;
    int x, z;
    private Transform transform;
    public BuildingGridNode(GridXZ<BuildingGridNode> grid, int x, int z) {
        this.grid = grid;
        this.x = x;
        this.z = z;
    }

    public void SetTransform(Transform transform) {
        this.transform = transform;
        grid.TriggerGridObjectChanged(x, z);
    }

    public void ClearTransform() {
        this.transform = null;
        grid.TriggerGridObjectChanged(x, z);
    }

    // Needs to be aböe to replace with corner transfom depending on other placed transform and the new one
    public bool CanBuild(PlacedObjectTypeSO newObject) {
        if (UnityEngine.EventSystems.EventSystem.current.IsPointerOverGameObject()) return false; // Check if over UI element

        /* This is not working, can't compare the rotations yet
          BuildingGridNode bgn = grid.GetGridObject(x, z);
          if (bgn != null) {
              Debug.Log("building Grid Node rotation" + bgn +
              " new Object Visual Rotation " + newObject.visual.rotation +
              " new Object Prefab Rotation " + newObject.prefab.rotation);
          }

          Debug.Log(transform != null ? transform.gameObject.GetType() : "");
          if (transform != null) {
              if (transform.childCount > 0) {
                  for (int i = 0; i < transform.childCount; i++) {
                      if (transform.GetChild(i).rotation == newObject.prefab.transform.rotation) {
                          Debug.Log("transform rotation " + transform.GetChild(i).rotation + " newObject rotation " + newObject.prefab.rotation);
                          return false;
                      }
                  }
                  return true;
              }
          }
          */
        return transform == null;

    }

    public override string ToString() {
        return x + ", " + z + " \n" + transform;
    }
}