Double-Pendulum

Double Pendulum Simulation using C++20 and SFML

Description

This Project has been made solely for the purpose of learning more about SFML and C++20 and simulations. The integrator used is a modified version of Velocity Verlet where acceleration also depends on velocity see here. The UI has been made using Dear ImGui and ImGui-SFML for sfml bindings of imgui.

Current features :

• CLI - interface to provide initial conditions for the pendulum CLI support has been removed completely.
• No GUI support for manipulation of the paramenters Fear not Dear, ImGui is here ;)
• Uses RK4 integrator Uses modified Velocity Verlet

Future releases :

• Add options to allow damping effect
• Mulitple pendulums
• Anchor points to grab the pendulum in the UI itself
• Feel free to open a PR for more

P.S.- I am extremely new to C++ build sytems and it is a nightmare to deal with, I have come a long way since the first time I made this so I am somewhat more comfortable and confident now in building C++ projects however cross IDE CMake scripts are still not my cup of tea so if the CMake scripts don't work for your end please raise an issue and if you find any solution to mitigate the above create a PR.

How to build

After cloning the project, make sure to initialize the submodules too.

$ git clone --recursive <REPO_LINK>

If project is already cloned

$ git submodule update --init --recursive

Requirements

1. C++ compiler which supports C++20 and above: Check your compiler version, if it has support for c++20.

2. CMake >= 3.21: Check if you have CMake installed by running

   $ cmake --version

   If it is not available then install CMake from here depending on your OS.

   If you are on Linux, you can use the one provided by your package managers.

Building

1. Create a build directory in current project directory

   $ mkdir build

2. Generate build files in the build directory

   $ cmake -S . -B build

3. • For a Release build:

   $ cmake --build build --config Release

   • For a Debug build:

   $ cmake --build build --config Debug

   This will build for the default builder you have [Makefile or Ninja or MSVS etc]. You could specify a builder by adding a -G flag, for example to create build files for Ninja:

   $ cmake -G "Ninja" -S . -B build/[Debug/Release]

4. Navigate to build and run the executable

   $ cd build
   $ ./DoublePendulum (Linux) ./DoublePendulum.exe(Windows)

If you like this project be sure to star it :)