value-changed-node

Sources/armory/logicnode/ValueChangedNode.hx

@@ -0,0 +1,25 @@
+package armory.logicnode;
+
+class ValueChangedNode extends LogicNode {
+
+	var initial: Dynamic;
+	var value: Dynamic;
+
+	public function new(tree: LogicTree) {
+		super(tree);
+	}
+
+	override function run(from: Int) {
+		if (initial == null) {
+			initial = inputs[1].get();
+			value = initial;
+		}
+
+		else if (value != inputs[1].get()) {
+			value = inputs[1].get();
+			value != initial ? runOutput(0) : runOutput(1);
+		}
+
+	}
+
+}

blender/arm/logicnode/logic/LN_value_changed.py

@@ -0,0 +1,16 @@
+from arm.logicnode.arm_nodes import *
+
+class ValueChangedNode(ArmLogicTreeNode):
+    """Sends a signal to `Changed` output whether the connected value is changed and a signal to `Unchanged` if the connected value returns to initial. Does not works with `null` value."""
+    bl_idname = 'LNValueChangedNode'
+    bl_label = 'Value Changed'
+    arm_version = 1
+
+    def init(self, context):
+        super(ValueChangedNode, self).init(context)
+        self.add_input('ArmNodeSocketAction', 'In')
+        self.add_input('NodeSocketShader', 'Value')
+        self.add_output('ArmNodeSocketAction', 'Changed')
+        self.add_output('ArmNodeSocketAction', 'Unchanged')
+
+add_node(ValueChangedNode, category=PKG_AS_CATEGORY)