Demo project to prove Solidity duck typing and loose coupling.

It is possible split logic to a few contracts. The main contract may accept only address, then it initiates contract and due to duck type (a kind of) it can call different sub-contract implementation.

Plant contract can produce whatever Producers can. Moreoever, Producers may not extend Producer contract, but just be compatible with necessary methods (e.g. produce()).

Run test in using truffle develop;