Basic AI

4 files changed, 56 insertions, 30 deletions

diff --git a/src/main/scala/me/robbyzambito/othello/game/AIPlayer.scala b/src/main/scala/me/robbyzambito/othello/game/AIPlayer.scala
new file mode 100644
index 0000000..5c3efc6
--- /dev/null
+++ b/src/main/scala/me/robbyzambito/othello/game/AIPlayer.scala
@@ -0,0 +1,12 @@
+package me.robbyzambito.othello.game
+
+case class AIPlayer(override val color: Position) extends Player(color) {
+
+  override def nextMove(board: Board): Move = {
+    println(s"$this moving...")
+    Thread.sleep(500L)
+    println()
+    possibleMoves(board).head
+  }
+
+}
diff --git a/src/main/scala/me/robbyzambito/othello/game/Game.scala b/src/main/scala/me/robbyzambito/othello/game/Game.scala
index ea8c382..4c0e7a2 100644
--- a/src/main/scala/me/robbyzambito/othello/game/Game.scala
+++ b/src/main/scala/me/robbyzambito/othello/game/Game.scala
@@ -1,8 +1,6 @@
 package me.robbyzambito.othello.game
 
 import scala.annotation.tailrec
-import scala.io.StdIn
-import scala.util.Try
 
 /**
  * Represents the state of the game.
@@ -66,23 +64,8 @@ case class Game(board: Board,
   def takeTurn: Game = {
     println(s"${this}\n")
 
-    def getPos: (Int, Int) = {
-      val rowCount = Iterator.continually(
-        Try(StdIn.readLine(s"Enter the row to move for ${currentPlayer}: ").toInt)
-      ).dropWhile(_.isFailure).next().get
-      val colCount = Iterator.continually(
-        Try(StdIn.readLine(s"Enter the col to move for ${currentPlayer}: ").toInt)
-      ).dropWhile(_.isFailure).next().get
+    val move = currentPlayer.nextMove(board)
 
-      (rowCount, colCount)
-    }
-
-    val possibleMoves = currentPlayer.possibleMoves(board)
-    val pos = Iterator.continually(getPos)
-      .dropWhile(!possibleMoves.map(m => (m.rowCount, m.colCount)).contains(_))
-      .next()
-
-    val move = possibleMoves.find(m => m.rowCount == pos._1 && m.colCount == pos._2).get
     this.copy(board = move(board, currentPlayer), turnCount = turnCount + 1)
   }
 
@@ -93,5 +76,7 @@ case class Game(board: Board,
 }
 
 object Game {
-  def apply(): Game = new Game(Board.init(), List(Player(Position.WHITE), Player(Position.BLACK)))
+  def apply(players: List[Player]): Game = new Game(Board.init(), players)
+
+  def apply(): Game = Game( List(UserPlayer(Position.WHITE), AIPlayer(Position.BLACK)) )
 }
\ No newline at end of file
diff --git a/src/main/scala/me/robbyzambito/othello/game/Player.scala b/src/main/scala/me/robbyzambito/othello/game/Player.scala
index 581d2df..7abf3d2 100644
--- a/src/main/scala/me/robbyzambito/othello/game/Player.scala
+++ b/src/main/scala/me/robbyzambito/othello/game/Player.scala
@@ -1,18 +1,10 @@
 package me.robbyzambito.othello.game
 
-import me.robbyzambito.othello.game.Position.Position
-
 import scala.util.Try
 
-/**
- * Represents a party which is partaking in the game.
- * Both the AI and the end user are instances of Player.
- *
- * Written by Robby Zambito
- * Written on 11/20/2019
- * Targeting Scala 2.13.1
- */
-case class Player(color: Position) {
+abstract class Player(val color: Position) {
+  def nextMove(board: Board): Move
+
   def canMove(board: Board): Boolean =
     possibleMoves(board).nonEmpty
 
@@ -97,4 +89,5 @@ case class Player(color: Position) {
     case Position.BLACK => "Black"
     case _ => "Default"
   }
+
 }
diff --git a/src/main/scala/me/robbyzambito/othello/game/UserPlayer.scala b/src/main/scala/me/robbyzambito/othello/game/UserPlayer.scala
new file mode 100644
index 0000000..dc1c84c
--- /dev/null
+++ b/src/main/scala/me/robbyzambito/othello/game/UserPlayer.scala
@@ -0,0 +1,36 @@
+package me.robbyzambito.othello.game
+
+import scala.io.StdIn
+import scala.util.Try
+
+/**
+ * Represents a party which is partaking in the game.
+ * Both the AI and the end user are instances of Player.
+ *
+ * Written by Robby Zambito
+ * Written on 11/20/2019
+ * Targeting Scala 2.13.1
+ */
+case class UserPlayer(override val color: Position) extends Player(color) {
+
+  def nextMove(board: Board): Move = {
+    def getPos: (Int, Int) = {
+      val rowCount = Iterator.continually(
+        Try(StdIn.readLine(s"Enter the row to move for ${this}: ").toInt)
+      ).dropWhile(_.isFailure).next().get
+      val colCount = Iterator.continually(
+        Try(StdIn.readLine(s"Enter the col to move for ${this}: ").toInt)
+      ).dropWhile(_.isFailure).next().get
+
+      (rowCount, colCount)
+    }
+
+    val mvs = possibleMoves(board)
+    val pos = Iterator.continually(getPos)
+      .dropWhile(!mvs.map(m => (m.rowCount, m.colCount)).contains(_))
+      .next()
+
+    mvs.find(m => m.rowCount == pos._1 && m.colCount == pos._2).get
+  }
+
+}