How to modify the code to move the location of the assets directory?

[ghost]

This is needed to install ecode into the file system in Linux. According to the Linux FHS, the location would be /usr/share/ecode/assets.

[SpartanJ]

You just need to patch the resources path in ecode.cpp. So basically change it to mResPath = "/usr/share/ecode/" (and a few lines below will append assets to it).