Restructured project and implemented virtual python environments to isolate application. Added launch scripts too.

Data/Nodes/General Purpose/math_operation_node.py

@@ -0,0 +1,109 @@
+#!/usr/bin/env python3
+
+"""
+Standardized Math Operation Node:
+  - Performs mathematical operations (+, -, *, /, avg) on two inputs.
+  - Outputs the computed result.
+  - Uses a global update timer for processing (defined in borealis.py).
+  - Ensures it always has a "value" property that the Comparison Node can read.
+"""
+
+from OdenGraphQt import BaseNode
+from Qt import QtCore
+
+class MathOperationNode(BaseNode):
+    __identifier__ = 'bunny-lab.io.math_node'
+    NODE_NAME = 'Math Operation'
+
+    def __init__(self):
+        super(MathOperationNode, self).__init__()
+        self.add_input('A')
+        self.add_input('B')
+        self.add_output('Result')
+        
+        # Drop-down to choose which operation we do:
+        self.add_combo_menu('operator', 'Operator', items=[
+            'Add', 'Subtract', 'Multiply', 'Divide', 'Average'
+        ])
+
+        # A text field for showing the result to the user:
+        self.add_text_input('calc_result', 'Result', text='0')
+
+        # IMPORTANT: define a "value" property that the Comparison Node can read
+        # We do not necessarily need a text input for it, but adding it ensures
+        # it becomes an official property recognized by OdenGraphQt.
+        self.add_text_input('value', 'Internal Value', text='0')
+
+        # Keep a Python-side float of the current computed result:
+        self.value = 0
+
+        # Give the node a nice name:
+        self.set_name("Math Operation")
+
+        # Removed self-contained timer; global timer calls process_input().
+
+    def process_input(self):
+        # Attempt to read "value" from both inputs:
+        input_a = self.input(0)
+        input_b = self.input(1)
+        a_raw = input_a.connected_ports()[0].node().get_property('value') if input_a.connected_ports() else "0"
+        b_raw = input_b.connected_ports()[0].node().get_property('value') if input_b.connected_ports() else "0"
+
+        try:
+            a_val = float(a_raw)
+        except (ValueError, TypeError):
+            a_val = 0.0
+        try:
+            b_val = float(b_raw)
+        except (ValueError, TypeError):
+            b_val = 0.0
+
+        operator = self.get_property('operator')
+        if operator == 'Add':
+            result = a_val + b_val
+        elif operator == 'Subtract':
+            result = a_val - b_val
+        elif operator == 'Multiply':
+            result = a_val * b_val
+        elif operator == 'Divide':
+            result = a_val / b_val if b_val != 0 else 0.0
+        elif operator == 'Average':
+            result = (a_val + b_val) / 2.0
+        else:
+            result = 0.0
+
+        # If the computed result changed, update our internal properties and transmit
+        if self.value != result:
+            self.value = result
+
+            # Update the two text fields so the user sees the numeric result:
+            self.set_property('calc_result', str(result))
+            self.set_property('value', str(result))  # <= This is the critical step
+
+            # Let downstream nodes know there's new data:
+            self.transmit_data(result)
+
+    def on_input_connected(self, input_port, output_port):
+        pass
+
+    def on_input_disconnected(self, input_port, output_port):
+        pass
+
+    def property_changed(self, property_name):
+        pass
+
+    def receive_data(self, data, source_port_name=None):
+        pass
+
+    def transmit_data(self, data):
+        output_port = self.output(0)
+        if output_port and output_port.connected_ports():
+            for connected_port in output_port.connected_ports():
+                connected_node = connected_port.node()
+                if hasattr(connected_node, 'receive_data'):
+                    try:
+                        # Attempt to convert to int if possible, else float
+                        data_int = int(data)
+                        connected_node.receive_data(data_int, source_port_name='Result')
+                    except ValueError:
+                        connected_node.receive_data(data, source_port_name='Result')