1 files changed, 44 insertions, 0 deletions
diff --git a/NET/worlds/scape/CallbackPropertyOperator.java b/NET/worlds/scape/CallbackPropertyOperator.java
new file mode 100644
index 0000000..55c2418
--- /dev/null
+++ b/NET/worlds/scape/CallbackPropertyOperator.java
@@ -0,0 +1,44 @@
+package NET.worlds.scape;
+
+import NET.worlds.console.Main;
+import NET.worlds.console.MainCallback;
+
+public class CallbackPropertyOperator implements MainCallback {
+   private Property prop;
+   private int func;
+   private Object value;
+   private boolean done;
+
+   CallbackPropertyOperator(Property prop, int func, Object value) {
+      this.prop = prop;
+      this.func = func;
+      this.value = value;
+
+      assert !Main.isMainThread();
+
+      Main.register(this);
+   }
+
+   synchronized Object getValue() {
+      while (!this.done) {
+         try {
+            this.wait();
+         } catch (InterruptedException var2) {
+         }
+      }
+
+      return this.value;
+   }
+
+   @Override
+   public synchronized void mainCallback() {
+      this.modify();
+      Main.unregister(this);
+      this.notify();
+   }
+
+   private void modify() {
+      this.value = this.prop.safeOperate(this.func, this.value);
+      this.done = true;
+   }
+}