Tamagotchi

Food

Copy of SNIP-20 reference implementation.

Market

Contract for buying FOOD tokens.

Pet

Contract for instancing and feeding pet.

CosmWasm Test task

Intro

Some of us still remember the times back when we had our first digital pets - Tamagochi. As kids it was very challenging to keep your pet fed, clean and happy.

Challenge

Fast forward 20 years. Lets implement a basic Tamagochi logic.

• Create a SNIP-20 token contract - called FOOD.

• Create a CosmWasm Market contract that gives the ability to the user to purchase SNIP-20 tokens to feed to their Pet.

• Create a CosmWasm Pet contract which implements a digital pet (Tamagochi like) interface, allowing one to feed the creature with SNIP-20/21/22/23 tokens.

Requirements / restrictions

• FOOD tokens can only be minted by the Market contract.
• FOOD tokens can be purchased only with the native SCRT token in ratio SCRT/FOOD - 1:100.
• Feeding the Pet (sending the Pet contract a FOOD token) should result in burning FOOD tokens.
• Pet should implement a countdown clock, which gets pushed 4 hours ahead every time the pet gets fed.
• If you miss feeding the Pet for more than 4 hours then the Pet will starve.
• If a Pet starves to death then it cannot be fed any longer so FOOD tokens shall be returned to the sender rather then burned.

References

• scrt.network
• https://github.com/SecretFoundation/SNIPs/blob/master/SNIP-20.md
• cosmwasm.com
• github.com/hackbg/fadroma