func solveHandler(w http.ResponseWriter, r *http.Request) {
robots := new([4][2]uint)
for i := 0; i < 4; i++ {
fmt.Sscanf(r.FormValue(fmt.Sprintf("robot%v", i+1)),
"%v_%v", &robots[i][0], &robots[i][1])
}
var tx, ty uint
fmt.Sscanf(r.FormValue("target"), "%v_%v", &tx, &ty)
b := core.StandardBoard().Reset(robots)
p := core.NewPosition(b, b.Location(tx, ty))
fmt.Fprintf(w, solve(p, robots, appengine.NewContext(r)))
}
func mainHandler(w http.ResponseWriter, r *http.Request) {
mainTemplate.Execute(w, board(core.StandardBoard()))
}