30 lines
1.6 KiB
Markdown
30 lines
1.6 KiB
Markdown
---
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type: User Story
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title: "US-003: Expand the base"
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description: Let players expand their base radius through sequential stone, deepslate, and obsidian mining milestones.
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status: in-progress
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---
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# US-003: Expand the base
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As a **player with Base I**, I want mining milestones to expand my base so that more of my build receives base benefits.
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## Acceptance criteria
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- [ ] Base-size progression is unavailable until Base I is unlocked.
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- [ ] Only qualifying blocks broken in Survival mode count.
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- [ ] The first expansion requires a configurable 500 `STONE` and changes the radius from 10 to 25 blocks by default.
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- [ ] After the stone tier, the second expansion requires a separate configurable 1,000 `DEEPSLATE` and changes the radius from 25 to 75 blocks by default.
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- [ ] After the deepslate tier, the third expansion requires a separate configurable 1,000 `OBSIDIAN` and changes the radius from 75 to 150 blocks by default.
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- [ ] Stone, deepslate, and obsidian variants do not count by default.
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- [ ] Materials mined before their sequential tier becomes active do not count toward that later tier.
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- [ ] Player-placed qualifying blocks may be mined repeatedly for progress.
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- [ ] Expansions affect the cylinder's horizontal radius without independently changing its vertical bounds.
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- [ ] Relocating the base preserves earned size tiers and counters.
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## Related
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- [US-001: Unlock and establish Base I](us-001-unlock-and-establish-base.md)
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- [US-004: Unlock and control base flight](us-004-unlock-and-control-base-flight.md)
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- [US-011: Configure and persist progression](us-011-configure-and-persist-progression.md)
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