rexboard-movement-and-pathfinding

Development

Use this skill when working with RexBoard moveTo, pathFinder, MoveTo, PathFinder, moveToward, moveToRandomNeighbor, board paths, A*, occupiedTest, blockerTest, moveableTest, path costs, reachable areas, or tile-by-tile board movement. Triggers on: RexBoard moveTo, RexBoard pathFinder, board path, A*, occupiedTest, blockerTest, moveableTest, findArea, findPath.

QUICK START

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RexBoard Movement And Pathfinding

Use this skill for moving board chess and planning paths across RexBoard tiles.

Use This First

Choose the movement tool:

Need	Use
Animate a chess game object tile-by-tile	`MoveTo`
Test one destination tile	`MoveTo.canMoveTo(...)`
Find reachable area	`PathFinder.findArea(...)`
Find a path to a destination	`PathFinder.findPath(...)`
Use terrain costs or A* modes	`PathFinder` with `costCallback`

Most tactical movement uses both: pathfind first, then move step-by-step.

Required Setup

This skill assumes the moving chess is already on a RexBoard board. If not, use rexboard-board-and-chess.

References

Read these only when needed:

references/moveto-config.md: MoveTo config, methods, runtime setters, and events.
references/pathfinder-config.md: PathFinder config, path modes, cost callbacks, and query APIs.
references/blockers-and-costs.md: occupied tests, blocker tests, moveable tests, and cost semantics.
references/movement-recipes.md: reduced recipes for moving toward a tile, following a path, and reachable tiles.

Core Rules

MoveTo needs a chess game object already registered on a board.
PathFinder can be constructed with a game object or config; call setChess(gameObject) when created detached.
Keep occupiedTest, blockerTest, and custom tests separate.
Use PathFinder.BLOCKER/INFINITY from the instance in callbacks instead of hard-coded sentinel values.
Use board occupancy and tileZ conventions consistently between movement and pathfinding.

Source File Map

plugins/board/moveto/MoveTo.d.ts: movement config, methods, and callback types.
plugins/board/pathfinder/PathFinder.d.ts: path config, path modes, costs, and query methods.
plugins/board/moveto/Factory.js: moveTo factory signature.
plugins/board/pathfinder/Factory.js: pathFinder factory signatures.
plugins/board/moveto/methods/*.js: inspect only when movement behavior is unclear.

Related Skills

rexboard-board-and-chess: board occupancy, tileZ, and chess placement.
rexboard-grids-and-coordinates: directions, neighbors, distance, and wrap behavior.
rexboard-visibility-and-routes: LOS and Monopoly route traversal.
rexboard-miniboard-and-composite: MiniBoard-specific movement workflows.

Gotchas

sneak affects movement occupancy behavior; do not use it unless game rules require passing through occupied tiles.
MoveTo mutates board chess position before the visual tween completes; account for this when checking occupancy during movement.
wrap can make a neighbor move render as split movement across board edges.