Benjamin Schreiber

About VPT

Virtual Packet Tracer is a network simulation tool I began as an open ended semester project for a cyber security class. Inspired by Cisco Packet Tracer , VPT is a lightweight, cross-platform network simulation tool that allows users to create, configure, and troubleshoot network topologies.
VPT is written in Rust and uses Raylib (a OpenGL wrapper) for rendering and RayGUI (an immediate mode GUI for Raylib) for the user interface.

This project was created with the idea of simulating networks as closely as possible, and implements IEEE standards for all protocols, and accurately simulates the behavior of network devices, from the physical layer (byte serialization) to the network layer (ipv4).

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About PushApp

PushApp is a mobile application I developed for friends to play with. The concept is that you may group yourself on the app via invitations, and every server determined interval (3 hours) a random person in the group would receive a push notification to do N pushups (where N increments every time someone completes the task), and take a photo of where they were when they had to do the pushups. The app is a social challenge that I launched on the App store in 2024.

PushApp was developed with a Flutter frontend utilizing Riverpod and GoRouter, coupled with a Supabase backend and Firebase Cloud Messaging for push notifications. It was developed in about two weeks.

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About Graph Theorist Sketchpad

Graph Theorist Sketchpad is an application I developed for a graph theory class. The goal of the app was simply to sketch graphs, being any type (weighted, directed, self looping, complete, bipartite, etc). It was also a requirement to be able to view information about the graph, in the adjacency table and incidence matrix.

This application was made entirely in C using Raylib (an opengl wrapper) and Raygui (an immediate mode GUI for Raylib). Since the project required some advanced algorithms, I wanted to demonstrate the Bounding Volume Hierarchy algorithm for this project, and used that for collision detection.

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