DoggoWorld is a (very) simple 2D horizontal tower defense game. It is an attempt to recreate the experience of Battle Cats on the Hack computer, whose many limitations have necessitated several compromises.
The object of the game is to destroy the enemy's tower and defend your tower. You can achieve the goal by summoning cute doggos, but the enemy's doggos will try to stop you at the same time.
See How to play in the game.
- Download the .vm files into a single directory.
- Download the Hack VM Emulator from the NAND2tetris website: http://nand2tetris.org.
- Run the VMEmulator from a shell.
- Select 'File > Load' Program from the menu and point to the directory containing the .vm files
- Select 'View > Animate > No Animation' and set the slider to 'Fast'
- Finally press the '>>' button or F5 to run the game.
DoggoWorld runs in conjunction with the Hack OS services on the Jack virtual machine which is designed to be compatable with the specifications of the Hack computer, it was programmed in the Jack programming language.
The Hack Computer is a specification for a microcomputer with a very simple 16-bit CPU and 64K of built-in RAM (half of which is set aside for IO memory maps). The CPU has no built-in facility for multiply, divide, bit-shift or floating point. The Hack computer's design and implementation are detailed in the book 'Elements of Computing Systems' by Noam Nissan and Shimon Schoken and in the Coursera courses 'NAND2Tetris Part1 and Part2'. The website for the book and course is: http://nand2tetris.org
The Hack Operating System conforms to an API specified in the book and course and provides functionality for text output, graphical output, simple maths functions, strings and memory management.
The Jack Virtual Machine is a stack-based virtual machine whose specifications are also described in the book and course. The virtual machine assumes that it is running on a Hack-compatible architecture and memory map and has available the services of the Hack Operating System. In practice, virtual machine programs are run on the VM Emulator supplied by the course authors and which can be downloaded from the course website. Other (faster) implementations are also available from students who have completed the course.
The Jack Programming language is a simple Java-like language whose specification and implementation are also described in the book and course. It's only built-in types are 16-bit integers and 16-bit Array (pointer offset) references. It supports user-defined classes, but lacks inheritance. A Jack compiler that produces virtual machine intermediate code is available from the website.
Linked List
Jack doesn't support Linked-list, so let's carve one.
Art Design
A team member’s girlfriend supports our art design. Big thanks to her.
Image Display
Microsoft Word + Microsoft Paint are the most powerful PS tool. We also used a image-binary converter and hand-carved binary-jack compiler to read and display image.
Memory Saving
What a big 32K ROM! -- wrote at 02:35 a.m.
####readme skeleton credits to James Leibert
cite: https://github.com/QuesterZen/hackenstein3D/blob/master/README.md