EnTT Tower Defense Example

Other tower defense examples using EnTT exist. This one was only built for learning experience also for a talk I gave at work for a Lunch n Learn, also for TechSphere Ottawa.

Repository structure

• assets/ Game content loaded at runtime. CMake will copy this into your build folder.

• contentProcessor/ Node.js script to generate data.h to be consumed by the game. Run this if you will to modify the map or waves data.

• src/ Game source files.

• thirdparty/ Various thirdparty libraries and submodules used by this project.

• visualizer/ Tool to visualize Tags/Systems/Components and see which uses which.

How to build

git submodule update --init
mkdir build
cd build
cmake ..

On windows, open the solution, build and run. On linux or mac, do:

make
./tddod

The ruleset for this project

• Components are struct only. No complex type and no logic.
• Systems are single function only.
• Helper functions are used to create complex entity types (Factories) or to perform eventful actions.

References

• Typical C++ Bullshit https://macton.smugmug.com/Other/2008-07-15-by-Eye-Fi/n-xmKDH/i-BrHWXdJ
• CppCon 2014: Mike Acton "Data-Oriented Design and C++"https://www.youtube.com/watch?v=rX0ItVEVjHc
• EnTT - a fast and reliable entity-component system https://github.com/skypjack/entt
• Overwatch Gameplay Architecture and Netcode https://www.youtube.com/watch?v=W3aieHjyNvw
• Data Oriented Design Resources https://github.com/dbartolini/data-oriented-design