Well, the same goes for happiness, vanilla 3GD did not increase happiness whatsoever.
It is as I pointed out real early in this thread that in rev. 9627 you added the +X
in all cities multiplied by the number of cities on the continent where three gorges dam is built.
so if there are 5 cities on the same continent as three gorges dam then all cities will get +5X
I used "X" because you reduced the amount in a recent SVN revision.
I think X was 10 between rev. 9627 to 9806.
From 9806 to now it is 5.
Correction: (I use 5 happiness for the global as that is what the 3GD currently give through it's free building in all cities extension.)
Thus if you have one city, with a global +5 happy in each city, each city is getting a total of +5 happy. (1*5)
If you have 2 cities with a global +5 happy in each city, each city is getting a total of +10 happy.(2*5)
If you have 3 cities with a global +5 happy in each city, each city is getting a total of +15 happy.(3*5)
If you have 4 cities with a global +5 happy in each city, each city is getting a total of +20 happy.(4*5)
And so on. Thus if you have 10 cities with a global +5 happy in each city, each city is getting +50 happy.(10*5)
What about your standard 30-50 cities for this era? 50*5 = +250 Happy per city. And that's just at +5 global on all effect buildings being spread about.