Mobs vs. Players (+ darkness)

hello!
I'm looking for the following plugin:

the plugin create a zones with mob-spawners, when players destroy spawners - zone move to peaceful type. if players leave this zone and if the mobs will come from the area which is near - peaceful area moved to dangerous type, and mob-spawners appears

this situation looks like standart spawns model in minecraft, but i want plugin, which set the darkness in dangerous zones (darkness = look like near adminium/bedrock layer(ID=07, y = [0,16]) )

ohhh, i hope that you understand me =)

 

So like mobarena?

 

i know this, but mob arena is useful for creating stationary zones, i looking for the plugin for dynamic zones
ooh! look like "frontlines mech" or fanctions between player and mobs

 

This is too special, you will most likely not find such a plugin. Develop one yourself.
And please dont link to a russian wiki.