feat: buildCondition

packages/behavior/builders.js

@@ -34,3 +34,13 @@ export function buildValue(value) {
     value,
   };
 }
+
+export function buildCondition(operator, operands) {
+  return {
+    type: 'condition',
+    operator,
+    operands: operands.map((operand) => {
+      return buildValue(operand);
+    }),
+  };
+}

packages/behavior/index.js

@@ -8,4 +8,9 @@ export {
   fromJSON as behaviorItemFromJSON,
   register as registerBehaviorItem
 } from './item/registry';
-export {buildInvoke, buildTraversal} from './builders';
+export {
+  buildCondition,
+  buildInvoke,
+  buildTraversal,
+  buildValue,
+} from './builders';