Flow Field Defined
@Serializable
@SerialName(value = "FlowFieldDefined" )
A flow-field distance gradient over the grid space spaceName (G11): a one-time per-replication snapshot (the field is computed once at initialize()). cells gives reachable cells with their distance-to-goal; maxDistance anchors the heatmap color ramp; cellSize/originX/originY place the grid in world coordinates. Opt-in (off by default) — an "agent debugging / teaching" overlay.