import java.awt.*;
import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.Objects;

// stores both objects and other object collections
public class ObjectCollection {
    public ArrayList<PointComp> points = new ArrayList<PointComp>();
    private Object3d collectionObject;
    public ArrayList<ObjectCollection> subCollections = new ArrayList<ObjectCollection>();
    public ArrayList<Object3d> objects = new ArrayList<Object3d>();

    public void invalidate(boolean invalidatePoints){
        // the first level of object collections should contain all the points for the sub-levels.
        // this means that we only need to invalidate them at the top level
        if(invalidatePoints){for (PointComp point:
             points) {
            point.invalidate();
        }}
        for(ObjectCollection subCollection:
        subCollections){
            subCollection.invalidate(false);
        }
        for(Object3d object:
        objects){
            object.invalidate();
        }
    }

    public void draw(BufferedImage img, BufferedImage debugimg, Matrix camMatrix, double FPDis, int scrX, int scrY, Point3D playerPos){
        // todo check for frustum culling
        for (Object3d object:
             objects) {
            object.draw(img, debugimg, camMatrix, FPDis, scrX, scrY, playerPos);
        }
        // todo check for frustum culling
        for(ObjectCollection collection:
        subCollections){
            collection.draw(img, debugimg, camMatrix, FPDis, scrX, scrY, playerPos);
        }
    }
    public void addCollection(int[] pointList){
        subCollections.add(new ObjectCollection());
    }
    // making sure that all the point indices make sense might be a nightmare but ehh
    public void addObject(Object3d object){
        PointComp[] newpoints = object.points;
        objects.add(object);
        // add the new object

        // merge lists
        for (PointComp newpoint : newpoints) {
            boolean found = false;
            // find out if any of the new points already exist in the list
            for (PointComp point : points) {
                if (newpoint == point) {
                    found = true;
                    break;
                }
            }
            if (!found) {
                points.add(newpoint);
            }
        }
    }
    //
}