[NFP] Request Zombie Defense Mode Balance

[IsabelBraganca]

Zombie Defense Mode seems to be harder on lower levels, rather than on higher. The main reasons are:

• No walls for city states
• AI techs slower and have fewer units
• The rate the zombie strength increases is the same.

When the zombies strength gets too high, no one can build a unit capable of stopping them. The AI are reduced to one city, the capital and the city states are gone.

From the full post quoted at the end:

<Row>
   <ModifierId>TOWERDEFENSE_ZOMBIE_COMBAT_STRENGTH_FROM_PROPERTY</ModifierId>
   <Name>Scalar</Name>
   <Value>.5</Value>
</Row>

I've down some testing and found out that the number of zombies killed to increase their mutation strength by 1 is:

2 * number_of_players​

So each kill adds to the strength 0.5 / number_of_players.

The second param comes from:

<Row>
   <ModifierId>TOWERDEFENSE_ZOMBIE_COMBAT_STRENGTH_FROM_PROPERTY</ModifierId>
   <Name>InversePlayerScaling</Name>
   <Value>True</Value>
</Row>

My idea is to make TOWERDEFENSE_ZOMBIE_COMBAT_STRENGTH_FROM_PROPERTY depends on the level the player is playing.

level*base_zombie_strengh​

level would be 1 for settler and would increase by 1. So it would be 4 for prince and 8 for deity.
base_zombie_strengh - around 0.075 - 0.1 (on deity 0.6 or 0.8)

Just spit-balling here, but I believe it increases by 0.5 per zombie killed. The relevant parts seem to be:

<Row>
   <ModifierId>TOWERDEFENSE_INCREMENT_ZOMBIE_DEATHS</ModifierId>
   <Name>Amount</Name>
   <Value>1</Value>
</Row>

This is part of a counter that keeps track of the zombie deaths.

<Row>
   <ModifierId>TOWERDEFENSE_ZOMBIE_COMBAT_STRENGTH_FROM_PROPERTY</ModifierId>
   <Name>Scalar</Name>
   <Value>.5</Value>
</Row>

And, this multiplies the previous value by 0.5.

There's also these two arguments, which I'm not sure precisely what they do, since I haven't been able to play around with them yet.

<Row>
   <ModifierId>TOWERDEFENSE_ZOMBIE_COMBAT_STRENGTH_FROM_PROPERTY</ModifierId>
   <Name>InversePlayerScaling</Name>
   <Value>True</Value>
</Row>
<Row>
   <ModifierId>TOWERDEFENSE_ZOMBIE_COMBAT_STRENGTH_FROM_PROPERTY</ModifierId>
    <Name>AdvancedStartMultiplier</Name>
    <Value>50</Value>
</Row>