CompoundAbility

Mage/src/mage/abilities/CompoundAbility.java

@@ -0,0 +1,55 @@
+package mage.abilities;
+
+import java.util.List;
+
+/**
+ * @author noxx
+ */
+public class CompoundAbility extends AbilitiesImpl<Ability> {
+    
+    private String ruleText;
+    
+    public CompoundAbility(Ability... abilities) {
+        this(null, abilities);
+    }
+
+    public CompoundAbility(String ruleText, Ability... abilities) {
+        for (Ability ability : abilities) {
+            add(ability);
+        }
+    }
+
+    public CompoundAbility(final CompoundAbility compoundAbility) {
+        for (Ability ability : compoundAbility) {
+            add(ability);
+        }
+        this.ruleText = compoundAbility.ruleText;
+    }
+
+    public String getRule() {
+        if (ruleText != null) {
+            return ruleText;
+        }
+
+        StringBuilder sb = new StringBuilder();
+        List<String> rules = super.getRules(null);
+        for (int index = 0; index < rules.size(); index++) {
+            if (index > 0) {
+                if (index < rules.size() - 1) {
+                    sb.append(", ");
+                } else {
+                    sb.append(" and ");
+                }
+            }
+            sb.append(rules.get(index));
+        }
+
+        // we can't simply cache it to this.ruleText as some cards may change abilities dynamically
+        return sb.toString();
+    }
+
+    @Override
+    public CompoundAbility copy() {
+        return new CompoundAbility(this);
+    }
+}