Merge pull request #628 from altrisi/formatted-add

Add FormattedText addition

src/main/java/carpet/script/value/FormattedTextValue.java

@@ -3,6 +3,7 @@ package carpet.script.value;
 import net.minecraft.nbt.StringTag;
 import net.minecraft.nbt.Tag;
 import net.minecraft.text.BaseText;
+import net.minecraft.text.LiteralText;
 import net.minecraft.text.Text;
 
 public class FormattedTextValue extends StringValue
@@ -14,6 +15,33 @@ public class FormattedTextValue extends StringValue
         this.text = text;
     }
 
+    public static Value combine(Value left, Value right) {
+        BaseText text;
+        if (left instanceof FormattedTextValue)
+        {
+            text = (BaseText) ((FormattedTextValue) left).getText().shallowCopy();
+        }
+        else
+        {
+            if (left instanceof NullValue)
+                return right;
+            text = new LiteralText(left.getString());
+        }
+        
+        if (right instanceof FormattedTextValue)
+        {
+            text.append(((FormattedTextValue) right).getText().shallowCopy());
+            return new FormattedTextValue(text);
+        }
+        else
+        {
+            if (right instanceof NullValue)
+                return left;
+            text.append(right.getString());
+            return new FormattedTextValue(text);
+        }
+    }
+
     @Override
     public String getString() {
         return text.getString();
@@ -48,10 +76,16 @@ public class FormattedTextValue extends StringValue
         return StringTag.of(Text.Serializer.toJson(text));
     }
 
+    @Override
+    public Value add(Value o) {
+        return combine(this, o);
+    }
+
     public String serialize()
     {
         return Text.Serializer.toJson(text);
     }
+
     public static FormattedTextValue deserialize(String serialized)
     {
         return new FormattedTextValue(Text.Serializer.fromJson(serialized));

src/main/java/carpet/script/value/Value.java

@@ -79,6 +79,10 @@ public abstract class Value implements Comparable<Value>, Cloneable
 
     public Value add(Value o) {
         String lstr = this.getString();
+        if (o instanceof FormattedTextValue)
+        {
+            return FormattedTextValue.combine(this, o);
+        }
         if (lstr == null) // null
             return new StringValue(o.getString());
         String rstr = o.getString();