Visualizes Union-Find as a forest of parent-pointer trees. The animation walks a find(x) path to the representative (root), then demonstrates path compression rewiring nodes directly to the root, and finally performs a union(a,b) that attaches one root under the other using union-by-rank to keep the trees shallow (near-constant amortized time).
Rebuilds a deterministic Union-Find state each cycle from a scripted sequence of operations, then overlays phase-based animations (find tracer, compression rewires, union link) on top. Layout is recomputed from the current parent[] forest each frame; nodes/edges snap to a coarse grid for a blocky retro aesthetic. Uses GREEN/GREEN_DIM on black with time-based easing for smooth motion.