Game Information

(Note: fill in this portion with information about your game.)

Title: Wolf in Sheep's Clothing

Author: Yen-Hsiang Huang

Design Document: Wolf in Sheep's Clothing

Screen Shot:

How To Play:

This is a two players game. The first one would be the hunter. The second one would be the wolf.

• Hunter: Press WASD or arror keys to move your crosshair, SPACE to shot. You want to kill the wolf in disguise as soon as possible.

• Wolf: Press WASD or arror keys to move. Press SPACE to eat nearby animals. Press C to change your cloth. Note that you still look the same in your window after changing clothes. You can tell which animal you are by listening to your cry when changing clothes.

Changes From The Design Document:

I added

• Cool sound effect of shotgun.

I didn't accomplish

• Multiple pan (should be three in the design document).

• Random walking of animals and walking boundary (Yes, you can easily escape from this farm). The walking boundary is not hard in this game, and it can be implemented in a relatively short time.

Good / Bad / Ugly Code:

• Message handling between server and clients are quite tricky. It takes several if-else statements to separate different situations.

• I added a while loop, used erase() and begin() (instead of [] operator which might access wrong memory block) and reduce the number of send() in order not to burn down the server. This is not very elegant but really improve the synchronization quality.

• Overall, this assignment is not very hard but really takes time to think everything carefully. Sometimes a little mistake takes a whole night to debug (this is also why I cannot do 100% in this assignment...).

Sound Effects:

• Sheep

• Cow

• Pig

• Pig dead

• Shotgun

Using This Base Code

Before you dive into the code, it helps to understand the overall structure of this repository.

• Files you should read and/or edit:
  • main.cpp creates the game window and contains the main loop. You should read through this file to understand what it's doing, but you shouldn't need to change things (other than window title, size, and maybe the initial Mode).
  • server.cpp creates a basic server.
  • GameMode.*pp declaration+definition for the GameMode, a basic scene-based game mode.
  • meshes/export-meshes.py exports meshes from a .blend file into a format usable by our game runtime.
  • meshes/export-walkmeshes.py exports meshes from a given layer of a .blend file into a format usable by the WalkMeshes loading code.
  • meshes/export-scene.py exports the transform hierarchy of a blender scene to a file.
  • Connection.*pp networking code.
  • Jamfile responsible for telling FTJam how to build the project. If you add any additional .cpp files or want to change the name of your runtime executable you will need to modify this.
  • .gitignore ignores the objs/ directory and the generated executable file. You will need to change it if your executable name changes. (If you find yourself changing it to ignore, e.g., your editor's swap files you should probably, instead be investigating making this change in the global git configuration.)
• Files you should read the header for (and use):
  • Sound.*pp spatial sound code.
  • WalkMesh.*pp code to load and walk on walkmeshes.
  • MenuMode.hpp presents a menu with configurable choices. Can optionally display another mode in the background.
  • Scene.hpp scene graph implementation, including loading code.
  • Mode.hpp base class for modes (things that recieve events and draw).
  • Load.hpp asset loading system. Very useful for OpenGL assets.
  • MeshBuffer.hpp code to load mesh data in a variety of formats (and create vertex array objects to bind it to program attributes).
  • data_path.hpp contains a helper function that allows you to specify paths relative to the executable (instead of the current working directory). Very useful when loading assets.
  • draw_text.hpp draws text (limited to capital letters + *) to the screen.
  • compile_program.hpp compiles OpenGL shader programs.
  • load_save_png.hpp load and save PNG images.
• Files you probably don't need to read or edit:
  • GL.hpp includes OpenGL prototypes without the namespace pollution of (e.g.) SDL's OpenGL header. It makes use of glcorearb.h and gl_shims.*pp to make this happen.
  • make-gl-shims.py does what it says on the tin. Included in case you are curious. You won't need to run it.
  • read_chunk.hpp contains a function that reads a vector of structures prefixed by a magic number. It's surprising how many simple file formats you can create that only require such a function to access.

Asset Build Instructions

The meshes/export-meshes.py script can write mesh data including a variety of attributes (e.g., positions, normals, colors, texcoords) from a selected layer of a blend file:

blender --background --python meshes/export-meshes.py -- meshes/crates.blend:1 dist/crates.pnc

The meshes/export-scene.py script can write the transformation hierarchy of the scene from a selected layer of a blend file, and includes references to meshes (by name):

blender --background --python meshes/export-scene.py -- meshes/crates.blend:1 dist/crates.scene

The meshes/export-walkmeshes.py script can writes vertices, normals, and triangle indicies of all meshes on a selected layer of a .blend file:

blender --background --python meshes/export-walkmeshes.py -- meshes/crates.blend:3 dist/crates.walkmesh

There is a Makefile in the meshes directory with some example commands of this sort in it as well.

Runtime Build Instructions

The runtime code has been set up to be built with FT Jam.

Getting Jam

For more information on Jam, see the Jam Documentation page at Perforce, which includes both reference documentation and a getting started guide.

On unixish OSs, Jam is available from your package manager:

	brew install ftjam #on OSX
	apt get ftjam #on Debian-ish Linux

On Windows, you can get a binary from sourceforge, and put it somewhere in your %PATH%. (Possibly: also set the JAM_TOOLSET variable to VISUALC.)

Libraries

This code uses the libSDL library to create an OpenGL context, and the glm library for OpenGL-friendly matrix/vector types. On MacOS and Linux, the code should work out-of-the-box if if you have these installed through your package manager.

If you are compiling on Windows or don't want to install these libraries globally there are pre-built library packages available in the kit-libs-linux, kit-libs-osx, and kit-libs-win repositories. Simply clone into a subfolder and the build should work.

Building

Open a terminal (or x64 Native Tools Command Prompt for VS 2017 on Windows), change to the directory containing this code, and type:

jam

That's it. You can use jam -jN to run N parallel jobs if you'd like; jam -q to instruct jam to quit after the first error; jam -dx to show commands being executed; or jam main.o to build a specific file (in this case, main.cpp). jam -h will print help on additional options.