Hi there,
so finally could attach the axe and put this guy to work.
Here I show the melee attack implementation. It's based on raycast. Only the entity which collides with the ray receives the damage. The physics and the particles are still a bit funky, but more or less you get the idea.
I've just seen some "class" based scripts from the system library and I think I have to try to implement something like that to manage all the resources in the island. Just need to understand how classes work.