✨🎯 𝘿𝙖𝙮16 -100-𝘿𝙖𝙮𝙨 𝘾𝙤𝙙𝙚 𝘾𝙝𝙖𝙡𝙡𝙚𝙣𝙜𝙚 🚀🎨

import maya.cmds as mc
def replaceObjects(replacement):
    """
    Replaces selected objects with the replacement object.
    
    :param replacement: <str> The name of the replacement object.
    """
    if not mc.objExists(replacement):
        mc.warning("Replacement object '{}' does not exist.".format(replacement))
        return
    selected_objects = mc.ls(selection=True)
    if not selected_objects:
        mc.warning("No objects selected for replacement.")
        return
    selected_objects = [obj for obj in selected_objects if obj != replacement]
    for obj in selected_objects:
        # Get transformation data
        translation = mc.xform(obj, query=True, translation=True, worldSpace=True)
        rotation = mc.xform(obj, query=True, rotation=True, worldSpace=True)
        scale = mc.xform(obj, query=True, scale=True, relative=True)
        # Duplicate replacement object
        new_obj = mc.duplicate(replacement, name="{}_replaced".format(obj))[0]
        # Apply transformations
        mc.xform(new_obj, translation=translation, worldSpace=True)
        mc.xform(new_obj, rotation=rotation, worldSpace=True)
        mc.xform(new_obj, scale=scale, relative=True)
        # Parent to the original object's parent
        parent = mc.listRelatives(obj, parent=True)
        if parent:
            mc.parent(new_obj, parent[0])
        # Delete original object
        mc.delete(obj)
        print("Replaced '{}' with '{}'.".format(obj, new_obj))
# Usage example:
# Select the objects to be replaced, then run:
# replaceObjects('replacementObjectName')

# Test function is provided to test main function replaceObjects
def test_replaceObjects():
    # Create replacement object
    replacement_object = mc.polyCube(name='replacementObjectName')[0]
    
    # Set replacement object's attributes
    mc.xform(replacement_object, translation=(5, 5, 5), rotation=(30, 45, 60), scale=(1, 2, 1))
    
    # Create objects to replace
    obj1 = mc.polySphere(name='object1')[0]
    obj2 = mc.polyCylinder(name='object2')[0]
    
    # Set original objects' attributes
    mc.xform(obj1, translation=(10, 0, 0), rotation=(0, 45, 0), scale=(1, 1, 1))
    mc.xform(obj2, translation=(0, 10, 0), rotation=(0, 0, 90), scale=(2, 2, 2))
    
    # Parent original objects to a group
    group = mc.group(obj1, obj2, name='originalGroup')
    
    # Select objects to replace
    mc.select(obj1, obj2)
    
    # Run the replaceObjects function
    replaceObjects('replacementObjectName')
    
    # Define a helper function for approximate comparison
    def is_close(vec1, vec2, tol=0.01):
        return all(abs(a - b) < tol for a, b in zip(vec1, vec2))
    
    # Check if original objects are deleted
    assert not mc.objExists(obj1), "Original object1 was not deleted."
    assert not mc.objExists(obj2), "Original object2 was not deleted."
    
    # Check if new objects are created with correct names
    new_obj1 = 'object1_replaced'
    new_obj2 = 'object2_replaced'
    assert mc.objExists(new_obj1), "Replacement object1_replaced was not created."
    assert mc.objExists(new_obj2), "Replacement object2_replaced was not created."
    
    # Check transformations
    new_obj1_translate = mc.xform(new_obj1, query=True, translation=True, worldSpace=True)
    new_obj2_translate = mc.xform(new_obj2, query=True, translation=True, worldSpace=True)
    assert new_obj1_translate == [10, 0, 0], "Translation of object1_replaced does not match the original."
    assert new_obj2_translate == [0, 10, 0], "Translation of object2_replaced does not match the original."
    
    new_obj1_rotate = mc.xform(new_obj1, query=True, rotation=True, worldSpace=True)
    new_obj2_rotate = mc.xform(new_obj2, query=True, rotation=True, worldSpace=True)
    target_rotate = mc.xform('replacementObjectName', query=True, rotation=True, worldSpace=True)
    
    # Use approximate comparison for rotations
    assert is_close(new_obj1_rotate, [0, 45, 0]), "Rotation of object1_replaced does not match the original."
    assert is_close(new_obj2_rotate, [0, 0, 90]), "Rotation of object2_replaced does not match the original."
       
    # Check parenting
    new_obj1_parent = mc.listRelatives(new_obj1, parent=True)[0]
    new_obj2_parent = mc.listRelatives(new_obj2, parent=True)[0]
    assert new_obj1_parent == 'originalGroup', "object1_replaced is not parented correctly."
    assert new_obj2_parent == 'originalGroup', "object2_replaced is not parented correctly."
    
    print("All tests for replaceObjects passed successfully.")

test_replaceObjects()

[Today’s Challenge is to take this simple code to next level.. I am sharing images of these advanced codes...]