added cmd playing mode

Backend/schafkopf-client/src/main/kotlin/de/heiserer/CmdPlayer.kt

@@ -0,0 +1,60 @@
+package de.heiserer
+
+import de.heiserer.cards.*
+import de.heiserer.player.Player
+import java.util.*
+
+
+class CmdPlayer(name: String) : Player(name) {
+    private val scanner = Scanner(System.`in`)
+
+    override fun playCard(tableCards: UnsortedCardList, gameType: GameType): Card {
+        val cardsCopy = cards.getCopyOfCards()
+
+        println("Available cards:")
+        CmdSchafkopfMessager.CmdCard.printCards(cardsCopy)
+
+        // Print cards with their respective index
+        cardsCopy.forEachIndexed { index, card ->
+            println("(${index + 1}) ${card.name}") // Prints card with index starting from 1
+        }
+
+        // Prompt the user to enter a card number
+        println("Please enter the number of the card you want to play:")
+
+        val userInput = scanner.nextLine()
+        val cardToPlay = getCardByUserInput(userInput, tableCards, gameType)
+
+        return cards.remove(cardToPlay)
+    }
+
+    private fun getCardByUserInput(
+        userInput: String,
+        tableCards: UnsortedCardList,
+        gameType: GameType
+    ): Card {
+        val cardsCopy = cards.getCopyOfCards()
+        return try {
+            // Convert user input to an integer and adjust for zero-based index
+            val cardIndex = userInput.toInt() - 1
+
+            // Ensure the index is within bounds
+            if (cardIndex in cardsCopy.indices) {
+                cardsCopy[cardIndex] // Return the selected card
+                if(validateCard(cardsCopy[cardIndex], tableCards, gameType)){
+                    cardsCopy[cardIndex]
+                } else {
+                    println("Invalid card. Please try again.")
+                    playCard(tableCards, gameType) // Retry if the card is invalid
+                }
+            } else {
+                println("Invalid card number. Please try again.")
+                playCard(tableCards, gameType) // Retry if the input was invalid
+            }
+        } catch (e: NumberFormatException) {
+            println("Invalid input. Please enter a number.")
+            playCard(tableCards, gameType) // Retry on invalid input
+        }
+    }
+
+}

Backend/schafkopf-client/src/main/kotlin/de/heiserer/SchafkopfClient.kt

@@ -1,12 +1,14 @@
 package de.heiserer
 
+import CmdSchafkopfMessager
+import de.heiserer.player.NPCPlayer
 import de.heiserer.plugins.*
 import io.ktor.server.application.*
 import io.ktor.server.engine.*
 import io.ktor.server.netty.*
 
 fun main() {
-    val test = SchafkopfGameController()
+    val test = SchafkopfGameController(listOf(NPCPlayer("NPC 1"), NPCPlayer("NPC 2"), CmdPlayer("Dev"), NPCPlayer("NPC 4")), CmdSchafkopfMessager())
 
     test.playRound()