Add Status Effects

[BryanFriestad]

Various future game rules may apply "status effects" to tanks, which change them in many ways.

Status Effects will be applied by different triggers:

• Entering a space
• Being in a space at the start of a day
• Taking an action (anyone can be the target of the status effect, no matter who takes the action)
• As a result of some larger game event. Example: Player A and B are on Team Z. Player A enters Zone 1. Team Z gains control of Zone 1. A status effect is applied to all players on Team Z.
• Number of remaining players
• Number of game days elapsed

Status Effects can do many things to a tank:

• A status effect may affect one of the many tank "attributes"
• A status effect may enable that tank to take certain actions (that they could not without that status effect)
• A status effect may restrict that tank from taking certain actions
• A status effect may change the cost of taking an action. Example: Actions cost 4 gold instead of 3 gold.

Status Effect Duration:

• A status effect may have a "gameday"-based duration, after which they expire
• A status effect may be permanent
• A status effect may be indefinite, meaning it can be removed by some other event/trigger

List of Tank Attributes:

• Lives
• Max Lives
• Actions
• Actions/Day
• Max Actions
• Range
• Gold
• Max Gold
• Move speed
• Hit chance
• Attack Damage
• This should be abstract enough to support changing attributes, new attributes, etc.

[BryanFriestad]

This request needs to be revisited. I'm not sure exactly what is needed for v5 anymore.