X-Git-Url: http://git.scottworley.com/planeteer/blobdiff_plain/ad4de13f9695527db4337f61bc3397d34d04c7f6..c67c206aab4588c5264e33d78571882c2c8f8f31:/planeteer.go

diff --git a/planeteer.go b/planeteer.go
index 7e915d2..ca90a02 100644
--- a/planeteer.go
+++ b/planeteer.go
@@ -178,7 +178,7 @@ func DimensionSizes(data planet_data) []int {
 	dims[UnusedCargo] = eden_capacity + cloak_capacity + 1
 	dims[Fuel] = *fuel + 1
 	dims[Location] = len(data.Planets)
-	dims[Hold] = len(data.Commodities)
+	dims[Hold] = len(data.Commodities) + 1
 	dims[NeedFighters] = bint(*drones > 0) + 1
 	dims[NeedShields] = bint(*batteries > 0) + 1
 	dims[Visit] = 1 << uint(len(visit()))
@@ -319,8 +319,8 @@ func FillCellBySelling(data planet_data, dims []int, table []State, addr []int)
 			continue
 		}
 		base_price := data.Commodities[commodity].BasePrice
-		absolute_price := relative_price * base_price
-		sell_price := int(float64(absolute_price) * 0.9)
+		absolute_price := float64(base_price) * float64(relative_price) / 100.0
+		sell_price := int(absolute_price * 0.9)
 
 		for other[UnusedCargo] = 0; other[UnusedCargo] < dims[UnusedCargo]; other[UnusedCargo]++ {
 
@@ -350,7 +350,7 @@ func FillCellByBuying(data planet_data, dims []int, table []State, addr []int) {
 		return
 	}
 	base_price := data.Commodities[commodity].BasePrice
-	absolute_price := relative_price * base_price
+	absolute_price := int(float64(base_price) * float64(relative_price) / 100.0)
 	quantity := *hold - addr[UnusedCargo]
 	total_price := quantity * absolute_price
 	other[Hold] = 0
@@ -430,7 +430,7 @@ func FillStateTable1(data planet_data, dims []int, table []State) {
 				<-barrier
 			}
 			work_done++
-			fmt.Printf("\r%3.0f%%", 100*work_done/work_units)
+			print(fmt.Sprintf("\r%3.0f%%", 100*work_done/work_units))
 		}
 	}
 	print("\n")
@@ -456,6 +456,51 @@ func FindBestState(data planet_data, dims []int, table []State) int {
 	return max_index
 }
 
+func Commas(n int) (s string) {
+	r := n % 1000
+	n /= 1000
+	for n > 0 {
+		s = fmt.Sprintf(",%03d", r) + s
+		r = n % 1000
+		n /= 1000
+	}
+	s = fmt.Sprint(r) + s
+	return
+}
+
+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("%13v", Commas(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 +536,8 @@ 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-- {
+		fmt.Println(description[i])
+	}
 }