Editing Trinity:City Mechanics (section)

=Building The City=
A city is much like a character, in that it has levels (based on its population) and classes. Cities also have an analogue to Hit Dice, that being Wealth.

A city has six ability scores: '''Force''', '''Mobility''', '''Resilience''', '''Learning''', '''Awareness''', and '''Command'''. Each of these six abilities correspond roughly to a character's ability (so Force corresponds to Strength; Learning to Intelligence; and so forth).

Cities purchase these ability scores using the point buy method. A city receives a number of ability points to expend based upon its population. In addition, its population determines its population level (ie, character level).

Once the abilities are determined, you can pick from one of three classes for each population level: civilian, military, and a class that indicates a particular force alignment. Each class contributes to the city's Defense, Reputation, Wealth, skills, and feats.

Of these, Wealth is the most important (and only fleshed-out one, at the moment). Feats are also important: feats represent city features that go above and beyond what is indicated by the class levels. For instance, defensive fortifications, universities, and factories fall into feats.

Once these are all calculated, a city then has a number of derived abilities. They are as follows.

 Content
 Disaster
 Economy
 Influence on Others
 Infrastructure
 Outside Influence
 Population
 Resources
 Leadership

Each of these works (theoretically) on a scale of 1-100.

 In addition to those, the following may also be implemented (but are not, as of yet).
 Harvest

Once these abilities are determined, a city then has a number of link values, as each of these abilities is linked to one another. Events that take place in or around a city impact one or more of these abilities, which then further impacts the rest. Link values are assigned ad-hoc, dependant upon the nature of the city, on a scale of x(1/4) to x4.

[[Image:Trinity_City_flowchart_design-3.JPG|center|A City's Event Flowchart]]

Whenever a change occurs in one attribute, that change is propagated throughout the chart. For a given event, when it travels down a link, each link strength is halved for each link previously traversed. However, an event can only affect a given attribute once, no matter how many times links would bring it there. The attribute's link still counts for purposes of continuing to weaken link strengths, however.

For the time being, the precise effects of the vast majority of these abilities is not determined. While they can be DM fiat'd into usefulness, I would much rather have solid mechanics for dealing with them. Later sections will detail how they function.

===Calculating Attributes===
The following formulas are used to calculate the initial values for each of the attributes. Note that these can change, and the system is designed to allow these values to fluctuate.

Whenever the city gains a level, revalue all attributes that are based upon an ability score that changed.

 '''Content:''' Awa<sup>1</sup> x 5
 '''Disaster:''' 0
 '''Economy:''' Com<sup>1</sup> + Lrn<sup>1</sup> + Rel<sup>1</sup>
 '''Influence on Others:''' Reputation x 5
 '''Infrastructure:''' Rel<sup>1</sup> x 5
 '''Outside Influence:''' 20 - Awa<sup>1</sup>
 '''Population<sup>2</sup>:''' Level x 10
 '''Resources:''' Wealth x 5
 '''Leadership:''' (Com<sup>1</sup> + Awa<sup>1</sup>) x 2
 
 <sup>1</sup> Use the ability score, not the ability modifier.
 <sup>2</sup> This is a simplified formula. Actual formula is... 
   (Level x 10) + Floor{10 x [(Actual Population - Minimum Population) / (Maximum Population - Minimum Population)]}