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from tkinter import *
import random
import sys
import os.path
sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
from agents import *
loc_A, loc_B = (0, 0), (1, 0) # The two locations for the Vacuum world
class Gui(Environment):
"""This GUI environment has two locations, A and B. Each can be Dirty
or Clean. The agent perceives its location and the location's
status."""
def __init__(self, root, height=300, width=380):
super().__init__()
self.status = {loc_A: 'Clean',
loc_B: 'Clean'}
self.root = root
self.height = height
self.width = width
self.canvas = None
self.buttons = []
self.create_canvas()
self.create_buttons()
def thing_classes(self):
"""The list of things which can be used in the environment."""
return [Wall, Dirt, ReflexVacuumAgent, RandomVacuumAgent,
TableDrivenVacuumAgent, ModelBasedVacuumAgent]
def percept(self, agent):
"""Returns the agent's location, and the location status (Dirty/Clean)."""
return (agent.location, self.status[agent.location])
def execute_action(self, agent, action):
"""Change the location status (Dirty/Clean); track performance.
Score 10 for each dirt cleaned; -1 for each move."""
if action == 'Right':
agent.location = loc_B
agent.performance -= 1
elif action == 'Left':
agent.location = loc_A
agent.performance -= 1
elif action == 'Suck':
if self.status[agent.location] == 'Dirty':
if agent.location == loc_A:
self.buttons[0].config(bg='white', activebackground='light grey')
else:
self.buttons[1].config(bg='white', activebackground='light grey')
agent.performance += 10
self.status[agent.location] = 'Clean'
def default_location(self, thing):
"""Agents start in either location at random."""
return random.choice([loc_A, loc_B])
def create_canvas(self):
"""Creates Canvas element in the GUI."""
self.canvas = Canvas(
self.root,
width=self.width,
height=self.height,
background='powder blue')
self.canvas.pack(side='bottom')
def create_buttons(self):
"""Creates the buttons required in the GUI."""
button_left = Button(self.root, height=4, width=12, padx=2, pady=2, bg='white')
button_left.config(command=lambda btn=button_left: self.dirt_switch(btn))
self.buttons.append(button_left)
button_left_window = self.canvas.create_window(130, 200, anchor=N, window=button_left)
button_right = Button(self.root, height=4, width=12, padx=2, pady=2, bg='white')
button_right.config(command=lambda btn=button_right: self.dirt_switch(btn))
self.buttons.append(button_right)
button_right_window = self.canvas.create_window(250, 200, anchor=N, window=button_right)
def dirt_switch(self, button):
"""Gives user the option to put dirt in any tile."""
bg_color = button['bg']
if bg_color == 'saddle brown':
button.config(bg='white', activebackground='light grey')
elif bg_color == 'white':
button.config(bg='saddle brown', activebackground='light goldenrod')
def read_env(self):
"""Reads the current state of the GUI."""
for i, btn in enumerate(self.buttons):
if i == 0:
if btn['bg'] == 'white':
self.status[loc_A] = 'Clean'
else:
self.status[loc_A] = 'Dirty'
else:
if btn['bg'] == 'white':
self.status[loc_B] = 'Clean'
else:
self.status[loc_B] = 'Dirty'
def update_env(self, agent):
"""Updates the GUI according to the agent's action."""
self.read_env()
# print(self.status)
before_step = agent.location
self.step()
# print(self.status)
# print(agent.location)
move_agent(self, agent, before_step)
def create_agent(env, agent):
"""Creates the agent in the GUI and is kept independent of the environment."""
env.add_thing(agent)
# print(agent.location)
if agent.location == (0, 0):
env.agent_rect = env.canvas.create_rectangle(80, 100, 175, 180, fill='lime green')
env.text = env.canvas.create_text(128, 140, font="Helvetica 10 bold italic", text="Agent")
else:
env.agent_rect = env.canvas.create_rectangle(200, 100, 295, 180, fill='lime green')
env.text = env.canvas.create_text(248, 140, font="Helvetica 10 bold italic", text="Agent")
def move_agent(env, agent, before_step):
"""Moves the agent in the GUI when 'next' button is pressed."""
if agent.location == before_step:
pass
else:
if agent.location == (1, 0):
env.canvas.move(env.text, 120, 0)
env.canvas.move(env.agent_rect, 120, 0)
elif agent.location == (0, 0):
env.canvas.move(env.text, -120, 0)
env.canvas.move(env.agent_rect, -120, 0)
# TODO: Add more agents to the environment.
# TODO: Expand the environment to XYEnvironment.
def main():
"""The main function of the program."""
root = Tk()
root.title("Vacuum Environment")
root.geometry("420x380")
root.resizable(0, 0)
frame = Frame(root, bg='black')
# reset_button = Button(frame, text='Reset', height=2, width=6, padx=2, pady=2, command=None)
# reset_button.pack(side='left')
next_button = Button(frame, text='Next', height=2, width=6, padx=2, pady=2)
next_button.pack(side='left')
frame.pack(side='bottom')
env = Gui(root)
agent = ReflexVacuumAgent()
create_agent(env, agent)
next_button.config(command=lambda: env.update_env(agent))
root.mainloop()
if __name__ == "__main__":
main()