From: Scott Worley Date: Wed, 2 Nov 2011 18:19:39 +0000 (-0700) Subject: DescribePath() X-Git-Url: http://git.scottworley.com/planeteer/commitdiff_plain/2f4a9ae81a1a4802acbba08e84f645a5d7b0cd52?ds=sidebyside DescribePath() --- diff --git a/planeteer.go b/planeteer.go index 7e915d2..4dbb27b 100644 --- a/planeteer.go +++ b/planeteer.go @@ -456,6 +456,39 @@ func FindBestState(data planet_data, dims []int, table []State) int { return max_index } +func DescribePath(data planet_data, dims []int, table []State, start int) (description []string) { + for index := start; index > 0 && table[index].from > 0; index = table[index].from { + line := fmt.Sprintf("%10v", table[index].value) + addr := DecodeIndex(dims, index) + prev := DecodeIndex(dims, table[index].from) + if addr[Location] != prev[Location] { + from := data.i2p[prev[Location]] + to := data.i2p[addr[Location]] + if addr[Fuel] != prev[Fuel] { + line += fmt.Sprintf(" Jump from %v to %v (%v reactor units)", from, to, prev[Fuel]-addr[Fuel]) + } else if addr[Edens] != prev[Edens] { + line += fmt.Sprintf(" Eden warp from %v to %v", from, to) + } else { + panic("Traveling without fuel?") + } + } + if addr[Hold] != prev[Hold] { + if addr[Hold] == 0 { + quantity := *hold - (prev[UnusedCargo] + prev[Edens] + prev[Cloaks]) + line += fmt.Sprintf(" Sell %v %v", quantity, data.i2c[prev[Hold]]) + } else if prev[Hold] == 0 { + quantity := *hold - (addr[UnusedCargo] + addr[Edens] + addr[Cloaks]) + line += fmt.Sprintf(" Buy %v %v", quantity, data.i2c[addr[Hold]]) + } else { + panic("Switched cargo?") + } + + } + description = append(description, line) + } + return +} + // (Example of a use case for generics in Go) func IndexPlanets(m *map[string]Planet, start_at int) (map[string]int, []string) { e2i := make(map[string]int, len(*m)+start_at) @@ -491,4 +524,8 @@ func main() { best := FindBestState(data, dims, table) fmt.Printf("Best state: %v (%v) with $%v\n", best, DecodeIndex(dims, best), table[best].value) + description := DescribePath(data, dims, table, best) + for i := len(description) - 1; i >= 0; i-- { + print(description[i], "\n") + } }