X-Git-Url: http://git.scottworley.com/planeteer/blobdiff_plain/34db23936b19deb1ec5203736942312448185115..a29aebecc25a3b2c40c86f11818d79e367b5ce30:/planeteer.go diff --git a/planeteer.go b/planeteer.go index 6c77fc0..eb78bce 100644 --- a/planeteer.go +++ b/planeteer.go @@ -19,7 +19,7 @@ package main import "flag" import "fmt" -import "json" +import "encoding/json" import "os" import "runtime/pprof" import "strings" @@ -43,6 +43,8 @@ var fuel = flag.Int("fuel", 16, "Hyper Jump power left") var hold = flag.Int("hold", 300, "Size of your cargo hold") +var start_hold = flag.String("start_hold", "", "Start with a hold full of cargo") + var start_edens = flag.Int("start_edens", 0, "How many Eden Warp Units are you starting with?") @@ -63,10 +65,16 @@ var battery_price = flag.Int("battery_price", 0, "Today's Shield Battery price") var visit_string = flag.String("visit", "", "A comma-separated list of planets to make sure to visit") -var cpuprofile = flag.String("cpuprofile", "", "write cpu profile to file") +var tomorrow_weight = flag.Float64("tomorrow_weight", 1.0, + "Weight for the expected value of tomorrow's trading. 0.0 - 1.0") + +var extra_stats = flag.Bool("extra_stats", true, + "Show additional information of possible interest") +var cpuprofile = flag.String("cpuprofile", "", "write cpu profile to file") var visit_cache []string + func visit() []string { if visit_cache == nil { if *visit_string == "" { @@ -78,6 +86,7 @@ func visit() []string { } var flight_plan_cache []string + func flight_plan() []string { if flight_plan_cache == nil { if *flight_plan_string == "" { @@ -89,6 +98,7 @@ func flight_plan() []string { } var end_cache map[string]bool + func end() map[string]bool { if end_cache == nil { if *end_string == "" { @@ -109,8 +119,9 @@ type Commodity struct { Limit int } type Planet struct { - BeaconOn bool - Private bool + BeaconOn bool + Private bool + TomorrowValue int /* Use relative prices rather than absolute prices because you can get relative prices without traveling to each planet. */ RelativePrices map[string]int @@ -159,16 +170,18 @@ func ReadData() (data planet_data) { * independent -- some combinations are illegal and not used. They are * handled as three dimensions rather than one for simplicity. Placing * these dimensions first causes the unused cells in the table to be - * grouped together in large blocks. This keeps them from polluting - * cache lines, and if they are large enough, allows the memory manager - * to swap out entire pages. + * grouped together in large blocks. This keeps the unused cells from + * polluting cache lines, and if the spans of unused cells are large + * enough, allows the memory manager to swap out entire pages. * * If the table gets too big to fit in RAM: * * Combine the Edens, Cloaks, and UnusedCargo dimensions. Of the * 24 combinations, only 15 are legal: a 38% savings. - * * Reduce the size of the Fuel dimension to 3. We only ever look - * backwards 2 units, so just rotate the logical values through - * the same 3 physical addresses. This is good for an 82% savings. + * * Reduce the size of the Fuel dimension to 3. Explicit iteration + * only ever needs to look backwards 2 units, so the logical values + * can rotate through the same 3 physical addresses. This would be + * good for an 82% savings. Note that explicit iteration went away + * in 0372f045. * * Reduce the size of the Edens dimension from 3 to 2, for the * same reasons as Fuel above. 33% savings. * * Buy more ram. (Just sayin'. It's cheaper than you think.) @@ -178,16 +191,16 @@ 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 1-2 # of Devices of Cloaking (0 or 1) - UnusedCargo // 3 4 # of unused cargo spaces (0 - 3 typically) - Fuel // 4 17 Hyper jump power left (0 - 16) - Location // 5 26 Location (which planet) - Hold // 6 15 Cargo bay contents (a *Commodity or nil) - Traded // 7 2 Traded yet? - BuyFighters // 8 1-2 Errand: Buy fighter drones - BuyShields // 9 1-2 Errand: Buy shield batteries - Visit // 10 1-2**N Visit: Stop by these N planets in the route + Edens = iota // 1 3 # of Eden warp units (0 - 2 typically) + Cloaks // 2 1-2 # of Devices of Cloaking (0 or 1) + UnusedCargo // 3 4 # of unused cargo spaces (0 - 3 typically) + Fuel // 4 17 Hyper jump power left (0 - 16) + Location // 5 26 Location (which planet) + Hold // 6 15 Cargo bay contents (a *Commodity or nil) + Traded // 7 2 Traded yet? + BuyFighters // 8 1-2 Errand: Buy fighter drones + BuyShields // 9 1-2 Errand: Buy shield batteries + Visit // 10 1-2**N Visit: Stop by these N planets in the route NumDimensions ) @@ -199,13 +212,13 @@ func bint(b bool) int { return 0 } -func DimensionSizes(data planet_data) []int { +func DimensionSizes(data planet_data) LogicalIndex { eden_capacity := data.Commodities["Eden Warp Units"].Limit if *start_edens > eden_capacity { eden_capacity = *start_edens } cloak_capacity := bint(*cloak) - dims := make([]int, NumDimensions) + dims := make(LogicalIndex, NumDimensions) dims[Edens] = eden_capacity + 1 dims[Cloaks] = cloak_capacity + 1 dims[UnusedCargo] = eden_capacity + cloak_capacity + 1 @@ -226,7 +239,11 @@ func DimensionSizes(data planet_data) []int { return dims } -func StateTableSize(dims []int) int { +type Value int32 +type PhysicalIndex int32 +type LogicalIndex []int + +func StateTableSize(dims LogicalIndex) int { product := 1 for _, size := range dims { product *= size @@ -235,14 +252,19 @@ func StateTableSize(dims []int) int { } type State struct { - value, from int32 + value Value + from PhysicalIndex } -const CELL_UNINITIALIZED = -2147483647 -const CELL_BEING_EVALUATED = -2147483646 -const CELL_RUBISH = -2147483645 +const ( + FROM_ROOT = -2147483647 + iota + FROM_UNINITIALIZED + VALUE_UNINITIALIZED + VALUE_BEING_EVALUATED + VALUE_RUBISH +) -func EncodeIndex(dims, addr []int) int32 { +func EncodeIndex(dims, addr LogicalIndex) PhysicalIndex { index := addr[0] if addr[0] > dims[0] { panic(0) @@ -253,31 +275,37 @@ func EncodeIndex(dims, addr []int) int32 { } index = index*dims[i] + addr[i] } - return int32(index) + return PhysicalIndex(index) } -func DecodeIndex(dims []int, index int32) []int { - addr := make([]int, NumDimensions) +func DecodeIndex(dims LogicalIndex, index PhysicalIndex) LogicalIndex { + scratch := int(index) + addr := make(LogicalIndex, NumDimensions) for i := NumDimensions - 1; i > 0; i-- { - addr[i] = int(index) % dims[i] - index /= int32(dims[i]) + addr[i] = scratch % dims[i] + scratch /= dims[i] } - addr[0] = int(index) + addr[0] = scratch return addr } -func CreateStateTable(data planet_data, dims []int) []State { +func CreateStateTable(data planet_data, dims LogicalIndex) []State { table := make([]State, StateTableSize(dims)) for i := range table { - table[i].value = CELL_UNINITIALIZED + table[i].value = VALUE_UNINITIALIZED + table[i].from = FROM_UNINITIALIZED } - addr := make([]int, NumDimensions) + addr := make(LogicalIndex, NumDimensions) addr[Fuel] = *fuel addr[Edens] = *start_edens addr[Location] = data.p2i[*start] - addr[Traded] = 1 - table[EncodeIndex(dims, addr)].value = int32(*funds) + if *start_hold != "" { + addr[Hold] = data.c2i[*start_hold] + } + start_index := EncodeIndex(dims, addr) + table[start_index].value = Value(*funds) + table[start_index].from = FROM_ROOT return table } @@ -285,13 +313,13 @@ func CreateStateTable(data planet_data, dims []int) []State { /* CellValue fills in the one cell at address addr by looking at all * the possible ways to reach this cell and selecting the best one. */ -func Consider(data planet_data, dims []int, table []State, there []int, value_difference int, best_value *int32, best_source []int) { +func Consider(data planet_data, dims LogicalIndex, table []State, there LogicalIndex, value_difference int, best_value *Value, best_source LogicalIndex) { there_value := CellValue(data, dims, table, there) - if value_difference < 0 && int32(-value_difference) > there_value { + if value_difference < 0 && Value(-value_difference) > there_value { /* Can't afford this transition */ return } - possible_value := there_value + int32(value_difference) + possible_value := there_value + Value(value_difference) if possible_value > *best_value { *best_value = possible_value copy(best_source, there) @@ -299,19 +327,20 @@ func Consider(data planet_data, dims []int, table []State, there []int, value_di } var cell_filled_count int -func CellValue(data planet_data, dims []int, table []State, addr []int) int32 { + +func CellValue(data planet_data, dims LogicalIndex, table []State, addr LogicalIndex) Value { my_index := EncodeIndex(dims, addr) - if table[my_index].value == CELL_BEING_EVALUATED { + if table[my_index].value == VALUE_BEING_EVALUATED { panic("Circular dependency") } - if table[my_index].value != CELL_UNINITIALIZED { + if table[my_index].value != VALUE_UNINITIALIZED { return table[my_index].value } - table[my_index].value = CELL_BEING_EVALUATED + table[my_index].value = VALUE_BEING_EVALUATED - best_value := int32(CELL_RUBISH) - best_source := make([]int, NumDimensions) - other := make([]int, NumDimensions) + best_value := Value(VALUE_RUBISH) + best_source := make(LogicalIndex, NumDimensions) + other := make(LogicalIndex, NumDimensions) copy(other, addr) planet := data.i2p[addr[Location]] @@ -421,6 +450,7 @@ func CellValue(data planet_data, dims []int, table []State, addr []int) int32 { } } } + other[Traded] = addr[Traded] } /* Buy a Device of Cloaking */ @@ -444,7 +474,7 @@ func CellValue(data planet_data, dims []int, table []State, addr []int) int32 { if available { absolute_price := int(float64(data.Commodities["Fighter Drones"].BasePrice) * float64(relative_price) / 100.0) other[BuyFighters] = 0 - Consider(data, dims, table, other, -absolute_price * *drones, &best_value, best_source) + Consider(data, dims, table, other, -absolute_price**drones, &best_value, best_source) other[BuyFighters] = addr[BuyFighters] } } @@ -455,15 +485,14 @@ func CellValue(data planet_data, dims []int, table []State, addr []int) int32 { if available { absolute_price := int(float64(data.Commodities["Shield Batterys"].BasePrice) * float64(relative_price) / 100.0) other[BuyShields] = 0 - Consider(data, dims, table, other, -absolute_price * *batteries, &best_value, best_source) + Consider(data, dims, table, other, -absolute_price**batteries, &best_value, best_source) other[BuyShields] = addr[BuyShields] } } /* Visit this planet */ - var i uint - for i = 0; i < uint(len(visit())); i++ { - if addr[Visit] & (1 << i) != 0 && visit()[i] == data.i2p[addr[Location]] { + for i := uint(0); i < uint(len(visit())); i++ { + if addr[Visit]&(1< max_value { max_value = value max_index = index @@ -547,7 +584,10 @@ func FindBestState(data planet_data, dims []int, table []State) int32 { return max_index } -func Commas(n int32) (s string) { +func Commas(n Value) (s string) { + if n < 0 { + panic(n) + } r := n % 1000 n /= 1000 for n > 0 { @@ -559,8 +599,78 @@ func Commas(n int32) (s string) { return } -func DescribePath(data planet_data, dims []int, table []State, start int32) (description []string) { - for index := start; index > 0 && table[index].from > 0; index = table[index].from { +func FighterAndShieldCost(data planet_data, dims LogicalIndex, table []State, best PhysicalIndex) { + if *drones == 0 && *batteries == 0 { + return + } + fmt.Println() + if *drones > 0 { + final_state := FinalState(dims) + final_state[BuyFighters] = 0 + alt_best := FindBestState(data, dims, table, final_state) + cost := table[alt_best].value - table[best].value + fmt.Println("\rDrones were", float64(cost)/float64(*drones), "each") + } + if *batteries > 0 { + final_state := FinalState(dims) + final_state[BuyShields] = 0 + alt_best := FindBestState(data, dims, table, final_state) + cost := table[alt_best].value - table[best].value + fmt.Println("\rBatteries were", float64(cost)/float64(*batteries), "each") + } +} + +func EndEdensCost(data planet_data, dims LogicalIndex, table []State, best PhysicalIndex) { + if *end_edens == 0 { + return + } + fmt.Println() + final_state := FinalState(dims) + for extra_edens := 1; extra_edens <= *end_edens; extra_edens++ { + final_state[Edens] = *end_edens - extra_edens + alt_best := FindBestState(data, dims, table, final_state) + extra_funds := table[alt_best].value - table[best].value + fmt.Println("\rUse", extra_edens, "extra edens, make an extra", + Commas(extra_funds), "(", + Commas(extra_funds/Value(extra_edens)), "per eden)") + } +} + +func VisitCost(data planet_data, dims LogicalIndex, table []State, best PhysicalIndex) { + if dims[Visit] == 1 { + return + } + fmt.Println() + final_state := FinalState(dims) + for i := uint(0); i < uint(len(visit())); i++ { + all_bits := dims[Visit] - 1 + final_state[Visit] = all_bits & ^(1 << i) + alt_best := FindBestState(data, dims, table, final_state) + cost := table[alt_best].value - table[best].value + fmt.Printf("\r%11v Cost to visit %v\n", Commas(cost), visit()[i]) + } +} + +func EndLocationCost(data planet_data, dims LogicalIndex, table []State, best PhysicalIndex) { + if len(end()) == 0 { + return + } + fmt.Println() + final_state := FinalState(dims) + save_end_string := *end_string + *end_string = "" + end_cache = nil + alt_best := FindBestState(data, dims, table, final_state) + cost := table[alt_best].value - table[best].value + fmt.Printf("\r%11v Cost of --end %v\n", Commas(cost), save_end_string) + *end_string = save_end_string +} + +func DescribePath(data planet_data, dims LogicalIndex, table []State, start PhysicalIndex) (description []string) { + for index := start; table[index].from > FROM_ROOT; index = table[index].from { + if table[index].from == FROM_UNINITIALIZED { + panic(index) + } var line string addr := DecodeIndex(dims, index) prev := DecodeIndex(dims, table[index].from) @@ -569,7 +679,7 @@ func DescribePath(data planet_data, dims []int, table []State, start int32) (des to := data.i2p[addr[Location]] line += fmt.Sprintf("Jump from %v to %v (%v hyper jump units)", from, to, prev[Fuel]-addr[Fuel]) } - if addr[Edens] == prev[Edens] - 1 { + if addr[Edens] == prev[Edens]-1 { from := data.i2p[prev[Location]] to := data.i2p[addr[Location]] line += fmt.Sprintf("Eden warp from %v to %v", from, to) @@ -591,7 +701,7 @@ func DescribePath(data planet_data, dims []int, table []State, start int32) (des line += "Buy a Cloak" } if addr[Edens] > prev[Edens] { - line += fmt.Sprint("Buy ", addr[Edens] - prev[Edens], " Eden Warp Units") + line += fmt.Sprint("Buy ", addr[Edens]-prev[Edens], " Eden Warp Units") } if addr[BuyShields] == 1 && prev[BuyShields] == 0 { line += fmt.Sprint("Buy ", *batteries, " Shield Batterys") @@ -611,7 +721,7 @@ func DescribePath(data planet_data, dims []int, table []State, start int32) (des if line == "" { line = fmt.Sprint(prev, " -> ", addr) } - description = append(description, fmt.Sprintf("%13v ", Commas(table[index].value)) + line) + description = append(description, fmt.Sprintf("%13v ", Commas(table[index].value))+line) } return } @@ -642,6 +752,10 @@ func IndexCommodities(m *map[string]Commodity, start_at int) (map[string]int, [] func main() { flag.Parse() + if *start == "" || *funds == 0 { + print("--start and --funds are required. --help for more\n") + return + } if *cpuprofile != "" { f, err := os.Create(*cpuprofile) if err != nil { @@ -665,14 +779,22 @@ func main() { data.c2i, data.i2c = IndexCommodities(&data.Commodities, 1) dims := DimensionSizes(data) table := CreateStateTable(data, dims) - best := FindBestState(data, dims, table) + final_state := FinalState(dims) + best := FindBestState(data, dims, table, final_state) print("\n") if best == -1 { print("Cannot acheive success criteria\n") - } else { - description := DescribePath(data, dims, table, best) - for i := len(description) - 1; i >= 0; i-- { - fmt.Println(description[i]) - } + return + } + description := DescribePath(data, dims, table, best) + for i := len(description) - 1; i >= 0; i-- { + fmt.Println(description[i]) + } + + if *extra_stats { + FighterAndShieldCost(data, dims, table, best) + EndEdensCost(data, dims, table, best) + VisitCost(data, dims, table, best) + EndLocationCost(data, dims, table, best) } }