Help with Trigger

[Alkareen]

i need some help creating a trigger that does so when my builder creates a building (Goblin Farm) and a sheep enters it, thes sheep gets turned into "meat" that spawns near the building but i also get gold for it, i also need a trigger so the sheeps sometimes spawn another sheep so i can make a "herd" ..... the big prob is... though im kinda good at making triggers.... i have no idea at all how to make these triggers.... help is VERRY apreciated

 

[Thrikodius]

I think it's kinda easier to show you.View attachment Farms n Sheep for Alkareen.w3x
The map contains the trigger for killing the sheep.
I didn't know if the meat would be a unit/item etc so I leave that for you.
The farm have a spell that kills sheep.

I also made sheep spawn triggers.

Hope it helps.