Code Samples

This is a basic demo of CUGL that shows off the basics features: loading assets, displaying an image, and creating simple UI elements. This demo is the one shown on the first day of class.

This is demo showshow to use a Scene Graph to get interesting parallax effects. It also shows how to write an application that takes multiple forms of input. This is the demo to start with when you are trying to figure out your input schemes for your game.

This demo shows off how to use the limited interactive UI elments supported by the engine: buttons, sliders, text fields, and layout managers. This demo makes heavy use of the assets JSON file. Your UX designer should be studying it to understand how to design interfaces.

This demo shows how to create the textured scene graph nodes. The classes can be used to draw solid polygons, or polygon paths. Furthermore, we show how to define these shapes in the assets JSON file so that your UX designer can create them. See the README.txt for details.

This demo shows the proper way to use Box2D in CUGL, decoupled from the scene graph. This is a port of (part 1 of) Lab 4 from 3152. The demo uses wireframes to show the physics fixtures. You can toggle these wireframes by double clicking, or using D on the keyboard.

The last of the Box2d demos, this is a port of (part 2 of) Lab 4 from 3152. It does not show any Box2 features that you did not already see in the previous demos. Instead it shows you have to create a platformer with a floating joystick, seen in games like Oddmar the Viking.

This demo shows the proper way to use Box2D to create complex, jointed objects. This is a port of (part 3 of) Lab 4 from 3152. This demo uses wireframes to show the physics fixtures. You can toggle these wireframes by double clicking, or using D on the keyboard.

This demo is mostly identical to the Rocket Demo. However, instead of hard-coding the level layout, the level is defined by a JSON file. This demo shows you how to add custom loaders to the Asset Manager and use that to load your levels.

This is a barebones demo to show off tweening and cross-frame animation actions. This part of CUGL is experimental, as many of these features are a bit overkill. It is perfectly possible to have professional looking animations without them.

This demo shows off how to use freelists and memory pooling in CUGL. It is very similar to a LibGDX demo from the introductory course.

This simple demo shows how to use the CUGL render classes to create a custom OpenGL pipeline. With such a pipeline you can introduce custom shaders or even even have 3d graphics (provided you have taken CS 5625).
 
NOTE: This demo requires Patch 2.3.2.

This demo shows how to create a rotating cube that transitions between 2d scenes. This was used in 2022 by the game Yeti, Set, Go to create a 2d platformer that circled a cubic mountain. It works by creating two different graphical pipelines – a 2d one and a 3d one – and combining them together.  
NOTE: This demo requires Patch 2.3.2.

This demo shows how to integrate (JSON) levels generated by the Tiled level editor that is popular with many students in the introductory course. It heavily leverages custom property types. We have included the Tiled project with the demo.

This is code sample demostrates how to use the option CUGL networking libraries. This code is actually a game lab from a preivous semester, so it is incomplete. You should follow the provided tutorial to learn how to complete it. If you need to see the solution, come to office hours and we will show it to you.