nether-entry

# Skill: nether_entry Phase 2 of the dragon route. Build a portal, ignite it, walk through. Actual Nether survival starts in `blaze_rods`. ## Done when - A lit Nether portal stands at a known overworld location (**report its coordinates to your owner** — it's the way home) - You are standing in the Nether with the packlist below intact ## Obsidian (need 10) Mine it from a **ruined portal** — a structure that's just standing obsidian, no lava-casting. This is the only route: casting your own (water over lava) leaves every fresh obsidian block touching lava, and I refuse to mine fluid-adjacent blocks (it would flood or burn the dig), so a cast wall is unminable by design. 1. `locate_structure("#minecraft:ruined_portal")` — searches the whole family and returns the nearest. **Skip `ruined_portal_ocean`** (underwater) if the result names it; re-search or pick a land one — I can't dive. 2. `equip_item(diamond_pickaxe)` (obsidian needs diamond), `goto` the portal coordinates. 3. `mine(obsidian, 10)` — it digs the frame's obsidian on its own. ~9.4s per block is normal. Notes: - A portal's frame mixes plain **obsidian** with **crying obsidian** (purple particles). Crying obsidian is a *different block and useless for a portal frame* — `mine(obsidian)` already ignores it, so a single portal may yield fewer than 10. If you come up short, `locate_structure("#minecraft:ruined_portal")` again for the next nearest and top up. - If `mine` reports obsidian that "can't be broken here" with fluid beside it, that portal sits in a wet/lava pocket — relocate to a cleaner one rather than fighting the fluid. ## Portal build - Frame: 4 wide × 5 tall, **corners omitted = exactly 10 obsidian**, standing vertically. Inner opening is 2×3 air. - Pick flat ground near your base. Build the frame with one `build` call: two side columns of 3, plus top and bottom rows of 2. A single-cell `build` call handles any one-off correction. - **Flint & steel**: craft `flint_and_steel` = 1 iron ingot + 1 flint, a 2×2 recipe (`lookup_recipe` + `transfer` into your own grid; see the `containers` skill). Flint drops from `mine(gravel)`, ~10%/block. - **Ignite**: `interact_at(button=right, x, y, z, item_id=minecraft:flint_and_steel)` aimed at an **empty air cell INSIDE the frame** (a bottom one), not at the obsidian. The fire lands in that cell and the portal forms. - Enter: `goto` the portal cell and stand in it until the dimension changes (`get_self_status` confirms). ## Packlist (verify with `get_self_status` before igniting) | Item | Qty | Why | |---|---|---| | Cooked food | 32+ | Your healing | | Diamond sword + bow | 1 + 1 | Equip for combat only — hold the pickaxe while travelling (navigation digs with the held tool) | | Arrows | 32+ | `attack` spends them only on what it cannot reach (~6 per blaze); run low → carry extra food and let it melee | | Diamond pickaxe (+ iron backup) | 1 + 1 | Obsidian, digging | | Cobblestone | 64+ | Navigation scaffold — bridging lava lakes eats it | | Gold helmet (worn) | 1 | Piglin truce; 5 gold ingots if you must craft one | | Flint & steel | 1 | Re-light the portal if a ghast blows it out | **Never place or use a bed in the Nether — beds explode there.** ## Nether ground rules - **Don't dig straight down**; lava oceans sit under most terrain. Navigation bridges lava when it must — keep cobblestone stocked. - **Water doesn't exist here**: buckets won't place. - **Zombified piglins are pacifists until hit — and then they ALL swarm.** Never `attack` them. - **Ghasts** snipe from far; their fireballs can break the portal. On arrival, note the Nether-side portal coordinates (`get_self_status`) and report them to your owner. Overworld↔Nether coordinates map 8:1 horizontally. ## What to load next Standing in the Nether, packlist intact → mark phase 2 `completed`, `load_skill(name="blaze_rods")`. Load `combat_basics` too if you haven't — blazes are the first real combat test.