# Tamagotchi
> ⚠️ **Experimental — generated with no human supervision.** This realm was
> produced automatically by an MCP-driven agent to exercise the gno MCP server
> and tooling, and to generate test content for gno compilers, linters and
> formatters. **Not audited. Not for production.** Full context & folder README:
> [r/moul/x/daily](https://github.com/moul/gno-contracts/blob/main/r/moul/x/daily/README.md)
---
A tiny on-chain virtual pet. Hatch one, then keep it alive by feeding, playing,
and letting it sleep — hunger, happiness, and energy all decay with block
height, so neglect (or just forgetting to check in) eventually kills it.
Hatching a new pet after a death keeps your lifetime feed/play/death counts,
so the leaderboard rewards long-term care rather than a single lucky run.
Realm: `gno.land/r/g12cs4cehujpffpjpywmkqj43m6u5ya53nj69sjz/tamagotchi`
## Example calls
```
maketx call ... -func Hatch -args "Fluffy" # start a pet
maketx call ... -func Feed # -30 hunger, +5 energy
maketx call ... -func Play # +20 happiness, -10 energy, +5 hunger
maketx call ... -func Sleep # +40 energy, +5 hunger
```
`Render("")` lists every pet ever hatched with alive/dead status and lifetime
stats. `Render("<owner-address>")` shows one pet's detail card.
## Toolchain status
`gno test .` passes (10/10 tests) against `~/p/gh/gnolang/gno` as `GNOROOT`.
Uses only `chain/runtime`, `sort`, `strconv`, and the kept `gno.land/p/nt/avl/v0`
/ `gno.land/p/nt/testutils/v0` packages per the sapphire stdlib reference. Panic
paths are tested through non-crossing helper functions (`hatch`, `feed`,
`play`, `sleep`) rather than through the exported `cur realm` entry points,
since panics raised inside a realm-crossing call aren't `recover()`-able from
the caller on this toolchain version.
<!-- BEGIN GNOCONTRACTS FOOTER (generated by `make readmes`; do not edit below) -->
---
Part of **[moul/gno-contracts](https://github.com/moul/gno-contracts)** — moul's versioned gno.land contracts. See the repository for the full catalog, build/test tooling, and usage.
**Dependency graph:**
> 🧪 **Highly experimental — potentially vibe-coded.** Not audited; may break, change, or be removed at any time. Do not use with anything of value. Full disclaimer: [DISCLAIMER](https://github.com/moul/gno-contracts/blob/main/DISCLAIMER.md).
<!-- END GNOCONTRACTS FOOTER -->
Feed(cur interface {.seal func(); Address func() .uverse.address; IsCode func() bool; IsCurrent func() bool; IsEphemeral func() bool; IsUser func() bool; IsUserCall func() bool; IsUserRun func() bool; PkgPath func() string; Previous func() .uverse.realm; String func() string; Sub func(string) .uverse.realm; Subpath func() string}) string
Hatch(cur interface {.seal func(); Address func() .uverse.address; IsCode func() bool; IsCurrent func() bool; IsEphemeral func() bool; IsUser func() bool; IsUserCall func() bool; IsUserRun func() bool; PkgPath func() string; Previous func() .uverse.realm; String func() string; Sub func(string) .uverse.realm; Subpath func() string}, name string) string
Play(cur interface {.seal func(); Address func() .uverse.address; IsCode func() bool; IsCurrent func() bool; IsEphemeral func() bool; IsUser func() bool; IsUserCall func() bool; IsUserRun func() bool; PkgPath func() string; Previous func() .uverse.realm; String func() string; Sub func(string) .uverse.realm; Subpath func() string}) string
Render(path string) string
Sleep(cur interface {.seal func(); Address func() .uverse.address; IsCode func() bool; IsCurrent func() bool; IsEphemeral func() bool; IsUser func() bool; IsUserCall func() bool; IsUserRun func() bool; PkgPath func() string; Previous func() .uverse.realm; String func() string; Sub func(string) .uverse.realm; Subpath func() string}) string
Signatures reconstructed verbatim from vm/qfuncs — interface params keep their inline definitions.
vm/qrender output, sanitized (docs/render-security.md) and displayed in an empty-sandbox iframe — scripts, forms and popups cannot run. Links stay inert in-preview; right-click to open.