package alice.test.topology.aquarium;

import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;

public class MouseViewEvent implements MouseMotionListener {
	
	int new_x, new_y;
	int pre_x, pre_y;
	ViewChange v;
	
	public MouseViewEvent(ViewChange v) {
		this.v = v;
		
	}

	@Override
	public void mouseDragged(MouseEvent event) {
		new_x = event.getX();
		new_y = event.getY();
		
		v.theta -= v.sensitivity * (new_y - pre_y);
		v.phi += v.sensitivity * (new_x - pre_x);
		v.camera_y = v.distance * (float)Math.sin(v.theta);
		v.camera_xz = v.distance * (float)Math.cos(v.theta);
	
		v.camera_x =  v.camera_xz * (float)Math.sin(v.phi);
		v.camera_z =  v.camera_xz * (float)Math.cos(v.phi);	
		v.Vector_camera_pos.x = v.camera_x;
		v.Vector_camera_pos.y = v.camera_y;
		v.Vector_camera_pos.z = v.camera_z;
		
		v.Transform_camera_pos.setIdentity();
		v.Transform_camera_pos.setTranslation(v.Vector_camera_pos);
		
		v.Transform_camera_theta.rotX(-v.theta);
		v.Transform_camera_phi.rotY(v.phi);
		v.Transform_camera_phi.mul(v.Transform_camera_theta);
		v.Transform_camera_pos.mul(v.Transform_camera_phi);
		v.Camera.setTransform(v.Transform_camera_pos);
		pre_x = event.getX();
		pre_y = event.getY();
		
	}	
	
	@Override
	public void mouseMoved(MouseEvent event) {
		pre_x = event.getX();
		pre_y = event.getY();	
	}

}