Steenbok Open Shrub Lab — 2D Bush-to-Bush Foraging

This 2D companion turns the 3D steenbok scene into a clean overhead map of the same bush-to-bush foraging logic: a scattering of shrubs sits across an open savanna field, and each steenbok picks a target bush — usually the nearest one, though the selection slider controls how often it gambles on a farther patch instead — then crosses the open ground to reach it. Browsing at a bush steadily rebuilds energy at a rate set by that bush's quality; energy drains while crossing exposed terrain, faster the more open the terrain slider makes it. Any steenbok caught away from cover for too long risks a startle, a probability that climbs with terrain openness and falls with vigilance, triggering a brief sprint toward the target bush and a jolt of lost energy. A live readout panel tracks completed feeding visits, the herd's average energy, its average speed and a running startle count, making the trade-off between efficient bush selection and predation exposure directly visible instead of implied.