LN_compare.py

from arm.logicnode.arm_nodes import *

def remove_extra_inputs(self, context):
    if not any(p == self.property0 for p in ['Or', 'And']):
        while len(self.inputs) > self.min_inputs:
            self.inputs.remove(self.inputs[-1])
    if self.property0 == 'Between':
        self.add_input('ArmDynamicSocket', 'Input 3')

class CompareNode(ArmLogicTreeNode):
    """Compares values."""
    bl_idname = 'LNCompareNode'
    bl_label = 'Compare'
    arm_version = 3
    property0: HaxeEnumProperty(
        'property0',
        items = [('Equal', 'Equal', 'Equal'),
                 ('Not Equal', 'Not Equal', 'Not Equal'),        
                 ('Almost Equal', 'Almost Equal', 'Almost Equal'),
                 ('Greater', 'Greater', 'Greater'),
                 ('Greater Equal', 'Greater Equal', 'Greater Equal'),
                 ('Less', 'Less', 'Less'),
                 ('Less Equal', 'Less Equal', 'Less Equal'),
                 ('Between', 'Between', 'Input 1 Between Input 2 and Input 3 inclusive'),
                 ('Or', 'Or', 'Or'),
                 ('And', 'And', 'And')],
        name='', default='Equal',
        update=remove_extra_inputs)
    min_inputs = 2
    property1: HaxeFloatProperty('property1', name='Tolerance', description='Precision for float compare', default=0.0001)

    def __init__(self):
        super(CompareNode, self).__init__()
        array_nodes[str(id(self))] = self

    def arm_init(self, context):
        self.add_input('ArmDynamicSocket', 'Value')
        self.add_input('ArmDynamicSocket', 'Value')

        self.add_output('ArmBoolSocket', 'Bool')

    def draw_buttons(self, context, layout):
        layout.prop(self, 'property0')

        if self.property0 == 'Almost Equal':
            layout.prop(self, 'property1')

        if any(p == self.property0 for p in ['Or', 'And']):
            row = layout.row(align=True)
            op = row.operator('arm.node_add_input', text='New', icon='PLUS', emboss=True)
            op.node_index = str(id(self))
            op.socket_type = 'ArmDynamicSocket'
            column = row.column(align=True)
            op = column.operator('arm.node_remove_input', text='', icon='X', emboss=True)
            op.node_index = str(id(self))
            if len(self.inputs) == self.min_inputs:
                column.enabled = False
            
    def get_replacement_node(self, node_tree: bpy.types.NodeTree):
        if self.arm_version not in (0, 2):
            raise LookupError()

        if self.arm_version == 1 or self.arm_version == 2:
            return NodeReplacement(
                'LNGateNode', self.arm_version, 'LNGateNode', 2,
                in_socket_mapping={0:0, 1:1, 2:2}, out_socket_mapping={0:0, 1:1}
            )