Addon: Zombie Horde

This addon adds a thrilling event to your world. A horde of zombies spawn on a specific day. Enjoy the harder night to survive with a great number of zombies surrounding you!

Created By hinihatetsu

How does it work?

On a full-moon night, which means once in 8 days, a horde of zombies (10 or more) spawns around you. If you are in the dark on the night, you will be surrounded by a number of zombies in a minute. What you should do is kill all of them as soon as possible or run away for your life. A horde of zombies try to kill you at the same time.

• Unfortunately (or fortunately for some survivers?), the first day of the game is a full-moon day.
• As the difficulty of the game become harder, the spawn rate increases. In hard mode, a horde has 1.5 higher chances to spawn than a normal zombie does. (This rate is being adjusted. It could be changed on the coming version.)  
• In the mode, they spawn such where normal zombies never spawn, which means you have to make your base more bright to avoid spawning of the horde. Be careful and save your base.
• Remember they spawns even underground, if the game mode is normal or hard.

Manually testing

If you want to force the event occur

• run the command "/time add 24000" until the moon phase is full.
• run the command "/time set 13000" (It's the first night of the game.)

To spawn a horde 

• use a spawn egg named "item.spawn_egg.entity.hinihatetsu:zombie_horde.name"
• run the command "/summon hinihatetsu:zombie_horde"

Don't forget to set the moon phase full, or it only kill itself soon after spawned.

Parameters

Spawn Rate

• Easy: 70
• Normal: 110
• Hard: 150

Number per spawn

• 60%: 10 zombies
• 30%: 20 zombies
• 10%: 30 zombies

Spawn Brightness

• Easy: 0 to 7
• Normal: 0 to 7
• Hard: 0 to 9

Spawn underground

• Easy: no
• Normal: yes
• Hard: yes