Add a new dynastic rule called “Weather”

The Current Weather is a piece of gamestate, which is tracked on the Great Sea wiki page. It may any of the following Weather Options, or empty, and starts as empty. Weather Options have two parts, a Name which is how the Weather may be referred to in the game state but is otherwise flavour text, and the effect which applies only if it is the Current Weather. The Effects of the Current Weather overrule the effects of other dynastic rules.

* Name: Rainstorm. Effect: All Islands are in a Strong Sea. No Islands are in a Receding Sea.
* Name: Drought. Effect: All Islands are in a Receding Sea. No Islands are in a Strong Sea.
* Name: Fog. Effect: When an Island performs the Roll action, they must select their Terrain dice randomly.
* Name: Pleasant. Effect: During their turn, each Island performs the Roll an additional time.
* Name: Heatwave. Effect: During their turn, each Island must perform the Pressurise action and may not perform the Vent action
* Name: Snow. Effect: Islands may not gain Foliage, any action that would result in their Foliage increasing instead leaves their Foliage unchanged

When an Island Sets the Weather, they randomly select one of the Weather Options which is not the Current Weather. That option becomes the Current Weather

Add the following to the steps performed when an Island Generates time, right above “Increase the Round by 1.”

Set the Weather

If it is Round: 3, and the majority of EVC on this proposal include the phrase “Bring It On”, Set the Weather.