package engine.camera;

import engine.Engine;
import engine.math.Matrix4f;
import engine.math.Vector3f;
import engine.object.ObjectGl;

public class Camera {

    private float dimension;
    private final Vector3f aspectRatio;
    private final Engine engine;


    public Camera(float dimension, Vector3f aspectRatio, Engine engine){
        this.dimension = dimension;
        this.aspectRatio = aspectRatio;
        this.engine = engine;
        float ar = aspectRatio.y / aspectRatio.x;
        ObjectGl.projection = Matrix4f.orthographic(-dimension, dimension, -dimension * ar, dimension * ar, 0.1f, 1000.0f);
    }

    public void zoom(float zoomFactor){
        engine.setUIElementZoomFactor(zoomFactor);
        this.dimension *= zoomFactor;
        float ar = aspectRatio.y / aspectRatio.x;
        ObjectGl.projection = Matrix4f.orthographic(-dimension, dimension, -dimension * ar, dimension * ar, 0.1f, 100.0f);
    }

    public float getDimension(){
        return this.dimension;
    }

    public Vector3f getAspectRatio(){
        return this.aspectRatio;
    }
}