Consider not using all the fuel.

[planeteer] / planeteer.go

diff --git a/planeteer.go b/planeteer.go
index a2406ab30cf9a2ec6a0a79ab2afdcbc03e1232f0..a3a5a029add7dd798fe37624c8dddc61f68f3dcb 100644 (file)
--- a/planeteer.go
+++ b/planeteer.go
@@ -21,6 +21,7 @@ import "flag"
 import "fmt"
 import "json"
 import "os"
+import "runtime/pprof"
 import "strings"
 
 var funds = flag.Int("funds", 0,
@@ -62,29 +63,44 @@ 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 visit_cache []string
 func visit() []string {
-       if *visit_string == "" {
-               return nil
+       if visit_cache == nil {
+               if *visit_string == "" {
+                       return nil
+               }
+               visit_cache = strings.Split(*visit_string, ",")
        }
-       return strings.Split(*visit_string, ",")
+       return visit_cache
 }
 
+var flight_plan_cache []string
 func flight_plan() []string {
-       if *flight_plan_string == "" {
-               return nil
+       if flight_plan_cache == nil {
+               if *flight_plan_string == "" {
+                       return nil
+               }
+               flight_plan_cache = strings.Split(*flight_plan_string, ",")
        }
-       return strings.Split(*flight_plan_string, ",")
+       return flight_plan_cache
 }
 
+var end_cache map[string]bool
 func end() map[string]bool {
-       if *end_string == "" {
-               return nil
-       }
-       m := make(map[string]bool)
-       for _, p := range strings.Split(*end_string, ",") {
-               m[p] = true
+       if end_cache == nil {
+               if *end_string == "" {
+                       return nil
+               }
+               m := make(map[string]bool)
+               for _, p := range strings.Split(*end_string, ",") {
+                       m[p] = true
+               }
+               end_cache = m
        }
-       return m
+       return end_cache
 }
 
 type Commodity struct {
@@ -94,6 +110,7 @@ type Commodity struct {
 }
 type Planet struct {
        BeaconOn bool
+       Private bool
        /* Use relative prices rather than absolute prices because you
           can get relative prices without traveling to each planet. */
        RelativePrices map[string]int
@@ -320,6 +337,10 @@ func FillCellByArriving(data planet_data, dims []int, table []State, addr []int)
 }
 
 func FillCellBySelling(data planet_data, dims []int, table []State, addr []int) {
+       if data.Planets[data.i2p[addr[Location]]].Private {
+               // Can't do commerce on private planets
+               return
+       }
        if addr[Hold] > 0 {
                // Can't sell and still have cargo
                return
@@ -357,6 +378,10 @@ func FillCellBySelling(data planet_data, dims []int, table []State, addr []int)
 }
 
 func FillCellByBuying(data planet_data, dims []int, table []State, addr []int) {
+       if data.Planets[data.i2p[addr[Location]]].Private {
+               // Can't do commerce on private planets
+               return
+       }
        if addr[Hold] == 0 {
                // Can't buy and then have nothing
                return
@@ -559,15 +584,17 @@ func FindBestState(data planet_data, dims []int, table []State) int {
        addr[BuyFighters] = dims[BuyFighters] - 1
        addr[BuyShields] = dims[BuyShields] - 1
        addr[Visit] = dims[Visit] - 1
-       // Fuel, Hold, UnusedCargo left at 0
+       // Hold and UnusedCargo left at 0
        max_index := -1
        max_value := 0
-       for addr[Location] = 0; addr[Location] < dims[Location]; addr[Location]++ {
-               if len(end()) == 0 || end()[data.i2p[addr[Location]]] {
-                       index := EncodeIndex(dims, addr)
-                       if table[index].value > max_value {
-                               max_value = table[index].value
-                               max_index = index
+       for addr[Fuel] = 0; addr[Fuel] < 2; addr[Fuel]++ {
+               for addr[Location] = 0; addr[Location] < dims[Location]; addr[Location]++ {
+                       if len(end()) == 0 || end()[data.i2p[addr[Location]]] {
+                               index := EncodeIndex(dims, addr)
+                               if table[index].value > max_value {
+                                       max_value = table[index].value
+                                       max_index = index
+                               }
                        }
                }
        }
@@ -664,6 +691,14 @@ func IndexCommodities(m *map[string]Commodity, start_at int) (map[string]int, []
 
 func main() {
        flag.Parse()
+       if *cpuprofile != "" {
+               f, err := os.Create(*cpuprofile)
+               if err != nil {
+                       panic(err)
+               }
+               pprof.StartCPUProfile(f)
+               defer pprof.StopCPUProfile()
+       }
        data := ReadData()
        if *drone_price > 0 {
                temp := data.Commodities["Fighter Drones"]