v1 Release

.gitignore

@@ -4,6 +4,7 @@
 *.dll
 *.so
 *.dylib
+roll
 
 # Test binary, build with `go test -c`
 *.test

main.go

@@ -0,0 +1,73 @@
+package main
+
+import (
+	"fmt"
+	"math/rand"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+)
+
+var r *rand.Rand
+
+func main() {
+	parm := "1d20"
+	if len(os.Args) > 0 {
+		if len(os.Args) == 2 {
+			parm = os.Args[1]
+		} else if len(os.Args) == 3 {
+			parm = os.Args[1] + "d" + os.Args[2]
+		}
+	}
+
+	r = rand.New(rand.NewSource(time.Now().UnixNano()))
+	num, sides, times := parseParm(parm)
+	for i := times; i > 0; i-- {
+		if times > 1 {
+			fmt.Printf("%d: ", times-i+1)
+		}
+		fmt.Println(roll(num, sides))
+	}
+}
+
+func parseParm(p string) (int, int, int) {
+	var pts []string
+	if strings.Contains(p, "d") {
+		pts = strings.Split(p, "d")
+	}
+	var num, sides int
+	if len(pts) > 0 {
+		num = atoi(pts[0])
+	}
+	times := 1
+	if len(pts) > 1 {
+		if strings.Contains(pts[1], "x") {
+			thesepts := strings.Split(pts[1], "x")
+			if len(thesepts) > 1 {
+				sides = atoi(thesepts[0])
+				times = atoi(thesepts[1])
+			}
+		} else {
+			sides = atoi(pts[1])
+		}
+	}
+	return num, sides, times
+}
+
+func roll(num, sides int) int {
+	ret := 0
+	for ; num > 0; num-- {
+		ret += r.Intn(sides)
+	}
+	return ret
+}
+
+func atoi(a string) int {
+	ret, err := strconv.Atoi(a)
+	if err != nil {
+		fmt.Println("Error parsing value:", a)
+		os.Exit(1)
+	}
+	return ret
+}