This is a git managed repository. Assuming the central repository is on BitBucket, you can obtain and work with the repository in the following way.
If you don't know much about git, the best way is to spend an hour or two (possibly more :-)) reading the first three chapters of the Git Book. This will be useful in the case here, but it is also a useful skill when collaborating in any kind of project that contains a human readable source code.
In case you just want to get the code, you have to install git on your system (supports Linux, MaxOS and Windows)
To download the repository, run the command:
$ git clone https://<yourname>@bitbucket.org/lsolanka/gridcells.git
Replace
<yourname>with your Bitbucket username. You should also have at least a read-only access to the repository. If this runs succesfully, the command will create a directory named gridcells with the source code in it.The repository contains a number of branches. The master branch is the most stable one. After you have cloned the repository, git will automatically check out the master branch for you.
After this, it is good to crate your own branch. For instance if you are planning to add resonance into the model, create a branch named
resonance:$ git checkout -b resonance
This command creates a new branch and automatically switches your context to that branch. You can now work inside this branch and make any changes, and they won't be affecting the master branch.
I strongly recomment going through the Git Book and keep versioning the changes you have made to the model. It might be useful when for instance we want to publish the resonance or any other models that have been created. Also versioning allows you to keep track of your parameter values and go back when something goes wrong and the model no longer works.
The next step is to read README to see what the directory structure of the repository is, and INSTALL to see how to run the simulations.