refactor together experience counter DynamicValue

Mage/src/main/java/mage/abilities/dynamicvalue/common/SourceControllerCountersCount.java

@@ -0,0 +1,48 @@
+package mage.abilities.dynamicvalue.common;
+
+import mage.abilities.Ability;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.effects.Effect;
+import mage.counters.CounterType;
+import mage.game.Game;
+import mage.players.Player;
+
+/**
+ * @author Susucr
+ */
+public enum SourceControllerCountersCount implements DynamicValue {
+    EXPERIENCE(CounterType.EXPERIENCE),
+    RAD(CounterType.RAD);
+
+    private final CounterType counterType;
+
+
+    SourceControllerCountersCount(CounterType counterType) {
+        this.counterType = counterType;
+    }
+
+    @Override
+    public SourceControllerCountersCount copy() {
+        return this;
+    }
+
+    @Override
+    public int calculate(Game game, Ability sourceAbility, Effect effect) {
+        int amount = 0;
+        Player player = game.getPlayer(sourceAbility.getControllerId());
+        if (player != null) {
+            amount = player.getCounters().getCount(counterType);
+        }
+        return amount;
+    }
+
+    @Override
+    public String toString() {
+        return "1";
+    }
+
+    @Override
+    public String getMessage() {
+        return counterType.getName() + " you have";
+    }
+}