39 lines
2.7 KiB
Markdown
39 lines
2.7 KiB
Markdown
---
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type: User Story
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title: "US-008: Unlock Base IV visitor access"
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description: Let players spend diamonds to permit controlled, cooldown-limited visitor teleports to their base.
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status: done
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---
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# US-008: Unlock Base IV visitor access
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As a **player with Base III**, I want to open my base to visitors so that other players can conveniently join me there under my control.
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## Acceptance criteria
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- [x] Base IV requires Base III and an established base.
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- [x] `/basesettings upgrade` offers the Base IV purchase for a configurable price that defaults to 128 diamonds, replacing `/base upgrade` and `/home upgrade`.
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- [x] A successful purchase removes the complete price atomically from the player's direct inventory.
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- [x] Insufficient funds, an invalid state, or a failed persistence operation does not consume any diamonds or grant Base IV.
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- [x] `/basesettings visitors allowed` permits visitor access idempotently for a Base IV owner, and `/basesettings visitors blocked` blocks it idempotently.
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- [x] Invalid visitor arguments show command usage, and `allowed` and `blocked` are offered through autocomplete.
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- [x] The visitor-access preference persists across reconnects and restarts.
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- [x] `/gotobase <owner>` autocompletes bases that the requesting player is currently eligible to visit.
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- [x] `/visit <owner>` aliases `/gotobase <owner>` with identical autocomplete, including eligible bases whose owners are offline.
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- [x] Enabled bases remain visitable while their owners are offline.
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- [x] A visitor teleport uses the destination owner's current warm-up tier.
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- [x] Looking around is permitted, while movement between block coordinates, damage, teleportation, world change, death, logout, or a conflicting teleport cancels the visitor warm-up.
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- [x] Cancellation or destination failure does not consume a visitor cooldown.
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- [x] A safe destination is resolved at or near the owner's recorded base center.
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- [x] Each visitor has an independent cooldown for each destination owner.
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- [x] On successful teleport, the visitor cooldown duration is captured from the destination owner's current cooldown tier.
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- [x] A later owner cooldown upgrade applies to future visits without rewriting a cooldown already in progress.
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- [x] Visiting another base does not consume or modify the owner's personal `/base` cooldown or the visitor's personal `/base` cooldown.
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- [x] Disabling visits prevents new requests but does not interrupt a teleport that has already completed.
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## Related
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- [US-005: Unlock Base III teleportation](us-005-unlock-base-teleportation.md)
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- [US-006: Reduce the base teleport warm-up](us-006-reduce-teleport-warmup.md)
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- [US-007: Reduce the base teleport cooldown](us-007-reduce-teleport-cooldown.md)
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