func (d *Dijkstra) FindBestRoute(dungeon dungeon.Dungeon) (int, []string, error) {
finder := dijkstra.NewRouteFinder(dungeon)
maxX := len(dungeon.Rooms[0]) - 1
maxY := len(dungeon.Rooms) - 1
return finder.FindRoute(0, 0, maxX, maxY)
}
)
var _ = Describe("RouteFinder", func() {
var dungeonMap dungeon.Dungeon
var finder *dijkstra.RouteFinder
BeforeEach(func() {
dungeonMap = dungeon.Dungeon{
Rooms: [][]int{
[]int{1, 2, -5, -4},
[]int{-5, -6, -7, 9},
[]int{9, 10, 11, 12},
},
}
finder = dijkstra.NewRouteFinder(dungeonMap)
})
Describe("#FindBestRoute", func() {
Context("from 0,0 to 3,2", func() {
It("returns the optimal path", func() {
_, path, err := finder.FindRoute(0, 0, 3, 2)
Expect(err).ToNot(HaveOccurred())
Expect(path).To(Equal([]string{"RIGHT", "DOWN", "DOWN", "RIGHT", "RIGHT"}))
})
It("returns the correct minDamange for the path", func() {
minDamange, _, err := finder.FindRoute(0, 0, 3, 2)
Expect(err).ToNot(HaveOccurred())
Expect(minDamange).To(Equal(-3))
})