Bunicorn Breeding & Trainer Mentoring

[phucnd]

1. Overview

For the next update, Bunicorn Island will introduce Breeding features, along with 3 new constructions, Breeding Cave, Hatchery, and Mentoring House, and 1 new entity, Buni Egg.

Two Bunicorns of different family trees can mate at Breeding Cave. During the breeding time, these two Bunicorns cannot produce gold or join battles. At the end of the breeding time, a Buni Egg will be produced. This Buni Egg can be placed in the Hatchery. After a certain hatching time, a new Bunicorn would emerge from the Buni Egg. This Bunicorn would share many similarities with normal Bunicorns but also have some limitations.

As with Bunicorns can mate and produce new Bunicorn, available Trainers can enter Mentoring house and help bring other Trainers to your team through Mentoring feature.

Also, to balance the economics in the game, these two minor changes will be implemented:

• Users can only remove obstacles on an island when the island is unlocked.
• Gold production of all users reduces by 25%.

  2. Breeding Cave and Hatchery

  2.1. Breeding Cave

• Construction cost: 4,000,000 Gold
• Building time: 24 hours
• Speedup: 9600 BUR

The breeding cave is where 2 Bunicorns can breed and produce an egg. To calculate the cost of breeding, we take the lowest price of Bunicorn for each star tier on the Marketplace as a benchmark. After converting the price in BUNI to BUR, we adjust the breeding price so that the cost to produce a new Bunicorn is 40% to 80% compared to buying on the marketplace. At the time of this proposal, the lowest price of a Bunicorn in the Marketplace is:

• 1-star: 69.3 BUNI ~ 1,041 BUR
• 2-star: 135.3 BUNI ~ 2,054 BUR
• 3-star: 330 BUNI ~ 5,011 BUR
• 4-star: 1,518 BUNI ~ 23,046 BUR
• 5-star: 7,700 BUNI ~ 119,022 BUR

Ultimately, depending on the Stars and the number of Breeding time, each Bunicorn will have corresponding Breeding time and Cost as listed in the tables below. Please note that these figures are subject to change and can be modified later for balance purposes.	Cost (BUR)	1st time breed	2nd time breed	3rd time breed	4th time breed	5th time breed
1-star	208	260	312	364	416
2-star	411	514	616	719	822
3-star	1,002	1,253	1,503	1,754	2,004
4-star	4,609	5,762	6,914	8,066	9,218
5-star	23,804	29,756	35,707	41,658	47,609

Star	1-star	2-star	3-star	4-star	5-star
Time	1-hour	2-hour	6-hour	12 hour	24 hour

When a Bunicorn couple mates, the Breeding time and cost of the couple will be the sum of the two individual figures. For example, if a 3-star Bunicorn that breed for the 2nd time mates with a 4-star Bunicorn that breed for the 1st time, the time would be 4 + 12 = 16 hours, and the cost would be 1,253 + 4,609 = 5,862 BUR

• Element: If the parents share the same elements, their Buni Egg would also have that element. If the parents are of different elements, their Buni Egg would randomly belong to one of those two elements.
• Stars: The stars of the Buni Egg will be randomly distributed, with the probability equal to the average of their breeding parents listed in the table below.

	F1: 1-star	F1: 2-star	F1: 3-star	F1: 4-star	F1: 5-star
F0: 1-star	95%	5%	0%	0%	0%
F0: 2-star	50%	45%	5%	0%	0%
F0: 3-star	20%	30%	45%	5%	0%
F0: 4-star	0%	30%	35%	30%	5%
F0: 5-star	0%	0%	60%	30%	10%

For example

• If both parents are of 3-star rarity, then the probabilities of their eggs having the rarity of 1, 2, 3, 4, and 5 stars are 20%, 30%, 45%, 5%, and 0% respectively
• If in the parents, one has 3-star rarity and another has 4-star rarity, then the probability of their eggs having the rarity of 1 star is: (20% + 0%)/2 = 10%. Similarly, the probabilities of their eggs having the rarity of 2, 3, 4, and 5 stars are 30%, 40%, 17.5%, and 2.5% respectively

  2.2. Hatchery

• Construction cost: 4,000,000 Gold
• Building time: 24 hours
• Speedup: 9600 BUR

For the upcoming version, the Hatchery can only incubate one egg at a time. The time for the egg to be hatched completely will depend on the star of the egg, and can be speedup using BUR with the conversion of 400 BUR for 1 hour

• 1-star egg: 1 hour
• 2-star egg: 2 hours
• 3-star egg: 6 hours
• 4-star egg: 12 hours
• 5-star egg: 24 hours

  3. Breeding rule

• Only Bunicorn NFTs that went through no more than 3 halving milestones can breed
• Bunicorns cannot breed with another one in the same family tree
• Each Bunicorn can breed for a maximum of 5 times
• Like a normal Bunicorn, a newly hatched Bunicorn still has attributes. It can be placed in Buni House to generate gold and can join the battle.
• However, a newly hatched Bunicorn is not considered an NFT. Therefore, it cannot be sold, purchased, or withdrawn (A certain amount of BUNI should be paid to unlock these features in future updates). Also, it cannot be enhanced or burnt to enhance another Bunicorn. It means that it will not increase the supply of NFT in the market, but mainly for users to continually expand their gameplay for now.
• The current Bunicorn NFTs are considered Genesis NFT while newly bred Bunicorns are not.

  4. Mentoring new Trainers

  Mentoring House is where an available Trainer can conduct a Mentoring session and bring a new Level-1 Trainer. Only 1 Trainer can enter the Mentoring House at a time. A Trainer can only do no more than 5 Mentoring sessions.

• Construction cost: 3,000,000 Gold
• Building time: 24 hours
• Speedup: 9600 BUR

A Trainer can do a Mentoring session for a certain amount of time. During this time period, the trainer cannot be used to collect gold from Buni House. The time of the session depends on the level of the Trainer: The higher Trainer’s level is, the shorter time needed to complete the session. The detailed time is listed as below:

• Trainer level 1 - 10: 32 hours
• Trainer level 11 - 20: 16 hours
• Trainer level 21 - 30: 8 hours
• Trainer level 31 - 40: 4 hours
• Trainer level 41 - 50: 2 hours
• Trainer level 51 - 60: 1 hour
• Trainer level 61 - 256: 0.5 hour

The cost to recruit a new Trainer is 50% compared to buying on the marketplace. At the time of the proposal, the lowest cost of a level-1 Trainer is 385 BUNI ~ 6,000 BUR, hence the cost for a session is uniform across all Trainers, at 3,000 BUR. Please note that this figure is subject to change and can be modified later for balance purposes.

After the training session, another Trainer would be added to the team. This Trainer can help collect gold from Buni House but cannot be withdrawn as an NFT item.

5. Future update

• Breeding Cave would have a maximum level of 10. For each level upgrade, the breeding time would reduce by 5%. Leveling up the Breeding Cave would require Gold and take some time, which can be speed up by using BUR.
• Hatchery would have a maximum level of 10. For each level upgrade, the hatching time would reduce by 5% and the maximum number of eggs incubated at the same time would increase by 1.
• New elements for Bunicorn will be introduced. Breeding parents of different elements can produce an egg of entirely new elements.

[shortonnyc]

I think it sounds good. Trainers starting after the mentoring are at what Level? Do their levels increase? Can they be used for fusion to Level up? Do they count for how many trainers you have in a house? Do they Level up? Do they do it the same way? Level up now takes too much to do.