X-Git-Url: http://git.scottworley.com/planeteer/blobdiff_plain/c45c1bcae7063b858bfa08a2376efe3a87b2c7f2..64d872506e98adaca80b0e0a59aeade6632a0a15:/planeteer.go diff --git a/planeteer.go b/planeteer.go index 25c9e03..5acf98f 100644 --- a/planeteer.go +++ b/planeteer.go @@ -27,15 +27,14 @@ var start = flag.String("start", "", "The planet to start at") var end = flag.String("end", "", - "A comma-separated list of planets to end at") + "A comma-separated list of acceptable ending planets.") var planet_data_file = flag.String("planet_data_file", "planet-data", "The file to read planet data from") -var fuel = flag.Int("fuel", 16, - "Reactor units; How many non-Eden jumps we can make " + - "(but remember that deviating from the flight plan " + - "costs two units of fuel per jump)") +var fuel = flag.Int("fuel", 16, "Reactor units") + +var hold = flag.Int("hold", 300, "Size of your cargo hold") var start_edens = flag.Int("start_edens", 0, "How many Eden Warp Units are you starting with?") @@ -46,11 +45,9 @@ var end_edens = flag.Int("end_edens", 0, var cloak = flag.Bool("cloak", false, "Make sure to end with a Device of Cloaking") -var drones = flag.Int("drones", 0, - "Buy this many Fighter Drones") +var drones = flag.Int("drones", 0, "Buy this many Fighter Drones") -var batteries = flag.Int("batteries", 0, - "Buy this many Shield Batterys") +var batteries = flag.Int("batteries", 0, "Buy this many Shield Batterys") var visit_string = flag.String("visit", "", "A comma-separated list of planets to make sure to visit") @@ -68,12 +65,12 @@ type Planet struct { BeaconOn bool /* Use relative prices rather than absolute prices because you can get relative prices without traveling to each planet. */ - RelativePrices map [string] int + RelativePrices map[string]int } type planet_data struct { - Commodities map [string] Commodity - Planets map [string] Planet - pi, ci map [string] int // Generated; not read from file + Commodities map[string]Commodity + Planets map[string]Planet + pi, ci map[string]int // Generated; not read from file } func ReadData() (data planet_data) { @@ -111,42 +108,40 @@ func ReadData() (data planet_data) { // The official list of dimensions: const ( - // Name Num Size Description - Edens = iota // 1 3 # of Eden warp units (0 - 2 typically) - Cloaks // 2 2 # of Devices of Cloaking (0 or 1) - UnusedCargo // 3 4 # of unused cargo spaces (0 - 3 typically) - Fuel // 4 17 Reactor power left (0 - 16) - Location // 5 26 Location (which planet) - Hold // 6 15 Cargo bay contents (a *Commodity or nil) - NeedFighters // 7 2 Errand: Buy fighter drones (needed or not) - NeedShields // 8 2 Errand: Buy shield batteries (needed or not) - Visit // 9 2**N Visit: Stop by these N planets in the route + // Name Num Size Description + Edens = iota // 1 3 # of Eden warp units (0 - 2 typically) + Cloaks // 2 2 # of Devices of Cloaking (0 or 1) + UnusedCargo // 3 4 # of unused cargo spaces (0 - 3 typically) + Fuel // 4 17 Reactor power left (0 - 16) + Location // 5 26 Location (which planet) + Hold // 6 15 Cargo bay contents (a *Commodity or nil) + NeedFighters // 7 2 Errand: Buy fighter drones (needed or not) + NeedShields // 8 2 Errand: Buy shield batteries (needed or not) + Visit // 9 2**N Visit: Stop by these N planets in the route NumDimensions ) func bint(b bool) int { - if b { return 1 } + if b { + return 1 + } return 0 } func DimensionSizes(data planet_data) []int { eden_capacity := data.Commodities["Eden Warp Units"].Limit cloak_capacity := bint(*cloak) - dims := []int{ - eden_capacity + 1, - cloak_capacity + 1, - eden_capacity + cloak_capacity + 1, - *fuel + 1, - len(data.Planets), - len(data.Commodities), - bint(*drones > 0) + 1, - bint(*batteries > 0) + 1, - 1 << uint(len(visit())), - } - if len(dims) != NumDimensions { - panic("Dimensionality mismatch") - } + dims := make([]int, NumDimensions) + dims[Edens] = eden_capacity + 1 + dims[Cloaks] = cloak_capacity + 1 + dims[UnusedCargo] = eden_capacity + cloak_capacity + 1 + dims[Fuel] = *fuel + 1 + dims[Location] = len(data.Planets) + dims[Hold] = len(data.Commodities) + dims[NeedFighters] = bint(*drones > 0) + 1 + dims[NeedShields] = bint(*batteries > 0) + 1 + dims[Visit] = 1 << uint(len(visit())) return dims } @@ -169,7 +164,7 @@ func NewStateTable(dims []int) []State { func EncodeIndex(dims, addr []int) int { index := addr[0] for i := 1; i < len(dims); i++ { - index = index * dims[i] + addr[i] + index = index*dims[i] + addr[i] } return index } @@ -187,9 +182,9 @@ func DecodeIndex(dims []int, index int) []int { /* What is the value of hauling 'commodity' from 'from' to 'to'? * Take into account the available funds and the available cargo space. */ func TradeValue(data planet_data, - from, to Planet, - commodity string, - initial_funds, max_quantity int) int { +from, to Planet, +commodity string, +initial_funds, max_quantity int) int { if !data.Commodities[commodity].CanSell { return 0 } @@ -228,11 +223,11 @@ func FindBestTrades(data planet_data) [][]string { } for commodity := range price_list { gain := TradeValue(data, - data.Planets[from], - data.Planets[to], - commodity, - 10000000, - 1) + data.Planets[from], + data.Planets[to], + commodity, + 10000000, + 1) if gain > best_gain { best[data.pi[from]][data.pi[to]] = commodity gain = best_gain @@ -244,8 +239,8 @@ func FindBestTrades(data planet_data) [][]string { } // (Example of a use case for generics in Go) -func IndexPlanets(m *map [string] Planet) map [string] int { - index := make(map [string] int, len(*m)) +func IndexPlanets(m *map[string]Planet) map[string]int { + index := make(map[string]int, len(*m)) i := 0 for e := range *m { index[e] = i @@ -253,8 +248,8 @@ func IndexPlanets(m *map [string] Planet) map [string] int { } return index } -func IndexCommodities(m *map [string] Commodity) map [string] int { - index := make(map [string] int, len(*m)) +func IndexCommodities(m *map[string]Commodity) map[string]int { + index := make(map[string]int, len(*m)) i := 0 for e := range *m { index[e] = i @@ -270,7 +265,7 @@ func main() { data.ci = IndexCommodities(&data.Commodities) dims := DimensionSizes(data) table := NewStateTable(dims) - table[0] = State{ 1, 1 } + table[0] = State{1, 1} best_trades := FindBestTrades(data) for from := range data.Planets {