如何在面向对象的PyOpenGL中进行回击？

from OpenGL.GL import *
from OpenGL.GLUT import *

class OpenGLApp:
    def __init__(self):
        self.init_glut()

    def init_glut(self):
        glutInit()
        glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB)
        glutInitWindowSize(800, 600)
        glutCreateWindow(b"OpenGL App")
        
        glutDisplayFunc(self.display)
        glutMouseFunc(self.mouse_callback)
        glutMainLoop()

    def display(self):
        glClear(GL_COLOR_BUFFER_BIT)
        # 绘制图形...
        glutSwapBuffers()

    def mouse_callback(self, button, state, x, y):
        if button == GLUT_LEFT_BUTTON and state == GLUT_DOWN:
            print(f"Left mouse button clicked at ({x}, {y})")
            # 在这里添加回击逻辑...

if __name__ == "__main__":
    app = OpenGLApp()