20ms
no run yet
Click or drag across empty cells to draw with the active tool (walls, or weighted terrain that costs more to cross); click a cell already drawn on to erase it. Use Place start… / Place end…, then click a cell, to move either marker. Breadth-First Search, Depth-First Search, and Bidirectional Search treat every step as equally costly, so they ignore weighted terrain entirely — Dijkstra and A* are the ones that route around it. The grid is keyboard-operable too: focus it and use the arrow keys to move, Enter or Space to draw, erase, or place on the focused cell. Undo reverses the last wall/terrain edit, start/end placement, or clear (see below).