Module tree 

Infinite procedural upgrade tree.

Every node in the tree is a pure function of (TREE_SEED, lot_x, lot_y). Save state stores only the set of bought lot coordinates plus a pan position; everything else (geometry, effects, names, costs, edges) is regenerated on demand from the seed.

The seed is a FNV-1a 64-bit hash of the literal string "DEADBEEF_BANANA" — same value for every player, every install, forever. The tree itself is the meta-game.

Re-exports

pub use aggregate::FingererTreeContrib;

pub use aggregate::TreeAggregate;

pub use coord::TreeCoord;

pub use node::LOT_H;

pub use node::LOT_W;

pub use node::NodeSpec;

pub use node::Rarity;

pub use node::anchor_of;

pub use node::diagonal_route_via;

pub use node::edge_exists;

pub use node::neighbors_of;

pub use node::node_at;

pub use primitive::Op;

pub use primitive::Primitive;

pub use primitive::Target;

pub use seed::TREE_SEED;

pub use seed::TREE_SEED_LITERAL;

pub use state::UpgradeTreeState;

Modules

aggregate

Parallel-Aggregate cache for tree contributions.

coord

Lot coordinates on the infinite tree canvas.

naming

Procedural name + blurb generation.

node

Per-lot node generator.

noise

Deterministic value noise — hash-smoothed lattice sampling.

primitive

Engine primitives — the fixed vocabulary of effects the tree can produce.

rng

Position-seeded deterministic RNG for tree generation.

seed

The one true seed.

state

Persistent state for the upgrade tree.