Update Files

leenkx/blender/lnx/logicnode/logic/LN_value_changed.py

@@ -0,0 +1,38 @@
+from lnx.logicnode.lnx_nodes import *
+
+
+class ValueChangedNode(LnxLogicTreeNode):
+    """Upon activation through the `In` input, this node checks whether
+    the given value is different than the value from the last execution
+    of this node.
+
+    @output Changed: Activates if the value has changed compared to the
+        last time the node was executed or if the node is executed for
+        the first time and there is no value for comparison yet.
+    @output Unchanged: Activates if the value is the same as it was when
+        the node was executed the last time.
+    @output Is Initial: Activates if the value is equal to the value at
+        the first time the node was executed or if the node is executed
+        for the first time. This output works independently of the
+        `Changed` or `Unchanged` outputs.
+    """
+    bl_idname = 'LNValueChangedNode'
+    bl_label = 'Value Changed'
+    lnx_version = 2
+
+    def lnx_init(self, context):
+        self.add_input('LnxNodeSocketAction', 'In')
+        self.add_input('LnxDynamicSocket', 'Value')
+
+        self.add_output('LnxNodeSocketAction', 'Changed')
+        self.add_output('LnxNodeSocketAction', 'Unchanged')
+        self.add_output('LnxNodeSocketAction', 'Is Initial')
+
+    def get_replacement_node(self, node_tree: bpy.types.NodeTree):
+        if self.lnx_version not in (0, 1):
+            raise LookupError()
+
+        return NodeReplacement(
+            'LNValueChangedNode', self.lnx_version, 'LNValueChangedNode', 2,
+            in_socket_mapping={0: 0, 1: 1}, out_socket_mapping={0: 0, 1: 2}
+        )