tic tac toe game in golang

Go/tictactoe.go

@@ -0,0 +1,231 @@
+package main
+
+import (
+  "strings"
+  "bufio"
+  "fmt"
+  "os"
+)
+
+func mapper(letter string) int{
+  if strings.TrimRight(letter, "\n") == "1" { return 0 }
+  if strings.TrimRight(letter, "\n") == "2" { return 1 }
+  if strings.TrimRight(letter, "\n") == "3" { return 2 }
+  if strings.TrimRight(letter, "\n") == "4" { return 3 }
+  if strings.TrimRight(letter, "\n") == "5" { return 4 }
+  if strings.TrimRight(letter, "\n") == "6" { return 5 }
+  if strings.TrimRight(letter, "\n") == "7" { return 6 }
+  if strings.TrimRight(letter, "\n") == "8" { return 7 }
+  if strings.TrimRight(letter, "\n") == "9" { return 8 }
+  return 99
+}
+
+func bprinter (board [9]string) {
+  fmt.Println("The board now looks like this:")
+  fmt.Println("-------")
+  fmt.Println("|" + board[0] + "|" + board[1] + "|" + board[2] + "|")
+  fmt.Println("|" + board[3] + "|" + board[4] + "|" + board[5] + "|")
+  fmt.Println("|" + board[6] + "|" + board[7] + "|" + board[8] + "|")
+  fmt.Println("-------")
+  fmt.Println("")
+ }
+
+func legendprinter () {
+  fmt.Println("Here is the legend for you to make a mark:")
+  fmt.Println("_______")
+  fmt.Println("|1|2|3|")
+  fmt.Println("|4|5|6|")
+  fmt.Println("|7|8|9|")
+  fmt.Println("-------")
+}
+
+
+func step1(board [9]string, player string) [9]string {
+  boardpos := requestor(player)
+  newboard := marker(board, player, boardpos)
+  tflag := islistsame(board, newboard)
+  if (tflag) {
+     fmt.Println("No change was made. The same player must make a valid selection. Player " + player + " please try again.")
+     newboard = step1(board, player)
+  }
+  return newboard
+}
+
+
+func boardwinchecker(board [9]string) string {
+  lastmessage := "nowinner"
+  if board[0] == board[4] { // check the diagonal from left top to right bottom corner
+    if board[4] == board[8] {
+      if board[4] != " " {
+        lastmessage = "Player " + board[0] + " wins!"
+        }
+    }
+  }
+  if board[2] == board[4] { // check the diagonal from right top to left bottom corner
+    if board[4] == board[6] {
+      if board[6] != " " {
+        lastmessage = "Player " + board[2] + " wins!"
+      }
+    }
+  }
+  if board[0] == board[3] { // check the left column
+    if board[3] == board[6] {
+      if board[6] != " " {
+        lastmessage = "Player " + board[0] + " wins!"
+      }
+    }
+  }
+  if board[0] == board[1] { // check the top row
+    if board[1] == board[2] {
+      if board[0] != " " {
+        lastmessage = "Player " + board[0] + " wins!"
+      }
+    }
+  }
+  if board[2] == board[5] { // check right column
+    if board[5] == board[8] {
+      if board[2] != " " {
+        lastmessage = "Player " + board[2] + " wins!"
+      }
+    }
+  }
+  if board[6] == board[7] { // check bottom row
+    if board[7] == board[8] {
+      if board[8] != " " {
+        lastmessage = "Player " + board[6] + " wins!"
+      }
+    }
+  }
+  if board[1] == board[4] { // check middle column
+    if board[4] == board[7] {
+      if board[1] != " " {
+        lastmessage = "Player " + board[1] + " wins!"
+      }
+    }
+  }
+  if board[3] == board[4] { // check middle row
+    if board[4] == board[5] {
+      if board[3] != " " {
+        lastmessage = "Player " + board[3] + " wins!"
+      }
+    }
+  }
+return lastmessage
+}
+
+func marker(board [9]string, player string, position string) [9]string {
+  x := mapper(position)
+  if (board[x] != " ") {
+    fmt.Println("That square has already been marked.  Please try again.")
+  } else {
+    board[x] = player
+  }
+  return board
+ }
+
+func requestor(player string) string {
+
+fmt.Println("Player", player, "it is your turn.")
+fmt.Println("Please enter a letter for the square you want to mark (1 through 9):")
+reader := bufio.NewReader(os.Stdin)
+text, _ := reader.ReadString('\n')
+if strings.TrimRight(text, "\n") != "1" {
+  if strings.TrimRight(text, "\n") != "2" {
+    if strings.TrimRight(text, "\n") != "3" {
+      if strings.TrimRight(text, "\n") != "4" {
+        if strings.TrimRight(text, "\n") != "5" {
+          if strings.TrimRight(text, "\n") != "6" {
+            if strings.TrimRight(text, "\n") != "7" {
+              if strings.TrimRight(text, "\n") != "8" {
+                if strings.TrimRight(text, "\n") != "9" {
+                  fmt.Println("*** WARNING ***")
+                  fmt.Println("That was an invalid entry. Please try again player " + player)
+                  fmt.Println(" ")
+                  text = requestor(player)
+                  }
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+return text
+}
+
+func islistsame(board1 [9]string, board2 [9]string) bool {
+  var j = true
+  for i := 0; i < 9; i++ {
+    if board1[i] == board2[i] {
+    } else {
+      j = false
+    }
+ }
+  return j
+}
+
+func main() {
+
+  var tttb [9]string
+  tttb[0] = " "
+  tttb[1] = " "
+  tttb[2] = " "
+  tttb[3] = " "
+  tttb[4] = " "
+  tttb[5] = " "
+  tttb[6] = " "
+  tttb[7] = " "
+  tttb[8] = " "
+
+legendprinter()
+
+a := step1(tttb, "X")
+bprinter(a)
+b := step1(a, "O")
+bprinter(b)
+c := step1(b, "X")
+bprinter(c)
+d := step1(c, "O")
+bprinter(d)
+e := step1(d, "X")
+bprinter(e)
+legendprinter()
+be := boardwinchecker(e)
+if be == "nowinner" {
+  f := step1(e, "O")
+  bprinter(f)
+  bf := boardwinchecker(f)
+  if bf == "nowinner" {
+    bprinter(f)
+    g := step1(f, "X")
+    bg := boardwinchecker(g)
+    if bg == "nowinner" {
+      bprinter(g)
+      h := step1(g, "O")
+      bh := boardwinchecker(h)
+      if bh == "nowinner" {
+        bprinter(h)
+        i := step1(h, "X")
+        bi := boardwinchecker(i)
+        if bi == "nowinner" {
+            legendprinter()
+            lastmessage := "CAT's GAME. (It was a draw aka a tie game.)"
+            bprinter(i)
+            fmt.Println(lastmessage)
+        } else {
+            bprinter(i)
+            fmt.Println(bi) }
+      } else {
+           bprinter(h)
+           fmt.Println(bh) }
+     } else {
+          bprinter(g)
+          fmt.Println(bg) }
+   }  else {
+          bprinter(f)
+          fmt.Println(bf) }
+  } else {
+       bprinter(e)
+       fmt.Println(be) }
+ }