NEARKnights

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  Title Screen

Inspiration

• InflationRPG
• Lineage
• Being 100% onchain without sacrificing hack and slash (but staying true to source of truth [chain]).

What it does

Link to submission video on non-centralised hosting https://ipfs.zod.tv/ipfs/QmV9w4gQWYoLsiQXSRFZ8k4VSmZw92TB9DA87K9sBwrCf4

• The game is 100% onchain, there is no backend.
• Its an idle battler all the turns are played in-advance then returned with future time and replayed on the client.
• We religiously rely on VRF and ported a RNG implementation as the builtin was way too gas expensive and hard to audit. https://github.com/zodtv/nearknights/blob/main/contracts/nk/assembly/rng.ts
• We realize the shortcomings using VRF and cant wait until VRF2
• There is a gacha system (not on UX yet) https://github.com/zodtv/nearknights/tree/main/contracts/nk/assembly/formulas

How we built it

• PhaserJS for gameengine, ReactJS for UX/UI overlayed on top the engine
• AssemblyScript for contracts and a generator to fill items+monsters
• UX / UI - https://github.com/kasim393
• Integration - https://github.com/vans163

Challenges we ran into

• gas is too expensive to return typed objects (classes) from contract
• allowance, for some reason the wallet asks to sign every transaction after the AccessKey spent approx 0.06 NEAR. Even tho allowance was 0.25.

Accomplishments that we're proud of

• 100% onchain (item drops, formulas, dicerolls)
• No offchain oracle or offchain showNtell RNG

What we learned

• A 3rd team member to do phaserjs shaders/effects/animations would be great
• NEAR Classes inside contracts are WAY too gas expensive to return or write to storage (because they are json serialized each time)
• Write data to the log to avoid the above gas problem
• Buffer + Write data as 1 line to the log to avoid the problem above as log is limited to 500 calls per TX.

What's next for NEARKnights

• Bring onboard 3rd member
• animations and effects, right now everything is static.
• Sound.
• Spell system.
• More content to explore.

Built With

• assemblyscript
• javascript