One of my settlements (out of 3, counting the main colony) was raided, and I couldn't defend it. This caused a dip in happiness and prosperity along with 2 buildings being destroyed. I know what's driving the unhappiness up to this point, but the happiness continues to drop, now at 51% with a prosperity of 82%. My other colony was successfully defended and has 100% prosperity with 76% happiness. Is there a tutorial out there to explain these mechanics? Thanks