🧪 Zebra Waterhole Lab (2D)

This 2D companion swaps the 3D scene for a plain top-down canvas built to read the steering behaviour directly: every zebra sums a separation force (keep clear of close herd-mates), an alignment force (match the local group's average heading) and a cohesion force (drift toward the local group's centroid) with a seek force toward whichever waypoint it's currently walking to — the grazing ground or the waterhole — then lingers a few seconds on arrival before turning back, so the dazzle cycles continuously between the two. Heat level and leader confidence are real parameters, not cosmetic: heat raises the seek force and top speed while shrinking each animal's comfort radius, so the herd visibly bunches tighter as it nears the water under heat stress; leader confidence raises the alignment weight and damps random wander, holding the group to a straighter, more parallel line.