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WorldEditor.py
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WorldEditor.py
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"""
This file defines the TK GUI for editing Karel worlds.
Original Author: Nicholas Bowman
Credits: Kylie Jue
License: MIT
Version: 1.0.0
Email: nbowman@stanford.edu
Date of Creation: 10/1/2019
Last Modified: 3/31/2020
"""
import tkinter as tk
from karel.KarelWorld import KarelWorld
from karel.Karel import Karel
from karel.kareldefinitions import *
from karel.KarelCanvas import KarelCanvas
from tkinter.filedialog import askopenfilename, asksaveasfilename
from tkinter import simpledialog, messagebox
class WorldBuilderApplication(tk.Frame):
def __init__(self, master=None, window_width=800, window_height=400, canvas_width=600, canvas_height=400):
# set window background to contrast white Karel canvas
master.configure(background=LIGHT_GREY)
# configure location of canvas to expand to fit window resizing
master.rowconfigure(0, weight=1)
master.columnconfigure(1, weight=1)
super().__init__(master, width=window_width, height=window_height, background=LIGHT_GREY)
self.icon = DEFAULT_ICON
self.window_width = window_width
self.window_height = window_height
self.canvas_width = canvas_width
self.canvas_height = canvas_height
self.last_action_event_loc = (None, None)
self.master = master
self.master.title("Karel World Builder")
self.set_dock_icon()
self.grid(row=0, column=0)
self.master.update()
self.setup_world()
self.create_canvas()
self.create_buttons()
def set_dock_icon(self):
# make Karel dock icon image
img = tk.Image("photo", file="./karel/icon.png")
self.master.tk.call('wm', 'iconphoto', self.master._w, img)
def setup_world(self):
load_existing = messagebox.askyesno("World Selection",
"Would you like to load an existing world? \n\nSelecting 'No' will allow you to start with a blank slate.",
parent=self.master)
if load_existing:
self.load_world(init=True)
else:
self.create_new_world(init=True, default=True)
def create_new_world(self, init=False, default=False):
num_avenues = simpledialog.askinteger("New World Size", "How many avenues should the new world have?",
parent=self.master,
minvalue=MIN_DIMENSIONS, maxvalue=MAX_DIMENSIONS)
if not num_avenues:
if default:
num_avenues = DEFAULT_SIZE
else:
# In this case, we can just cancel execution and return to existing world
return
num_streets = simpledialog.askinteger("New World Size", "How many streets should the new world have?",
parent=self.master,
minvalue=MIN_DIMENSIONS, maxvalue=MAX_DIMENSIONS)
if not num_streets:
if default:
num_streets = DEFAULT_SIZE
else:
# In this case, we can just cancel execution and return to existing world
return
if init:
self.world = KarelWorld()
self.karel = Karel(self.world)
else:
self.world.reload_world()
self.karel.reset_state()
self.world.num_avenues = num_avenues
self.world.num_streets = num_streets
if not init:
self.canvas.redraw_all()
def load_world(self, init=False):
filename = askopenfilename(initialdir="./worlds", title="Select Karel World",
filetypes=[("Karel Worlds", "*.w")], parent=self.master)
# User hit cancel and did not select file, so leave world as-is
if filename == "":
if init:
self.setup_world()
return
if init:
self.world = KarelWorld()
self.world.reload_world(filename=filename)
self.karel = Karel(self.world)
else:
self.world.reload_world(filename=filename)
self.karel.reset_state()
if not init:
self.canvas.redraw_all()
self.reset_direction_radio_buttons()
self.reset_beeper_bag_radio_buttons()
def create_canvas(self):
"""
This method creates the canvas on which Karel and Karel's
world are drawn.
"""
self.canvas = KarelCanvas(self.canvas_width, self.canvas_height, self.master, world=self.world,
karel=self.karel)
self.canvas.grid(column=1, row=0, sticky="NESW")
self.canvas.bind("<Configure>", lambda t: self.canvas.redraw_all())
self.canvas.bind("<Button-1>", self.handle_mouse_event)
self.canvas.bind("<B1-Motion>", self.handle_mouse_event)
def create_buttons(self):
"""
This method creates the three buttons that appear on the left
side of the screen. These buttons control the start of Karel
execution, resetting Karel's state, and loading new worlds.
"""
self.program_control_button = tk.Button(self, highlightthickness=0, highlightbackground='white')
self.program_control_button["text"] = "New World"
self.program_control_button["command"] = self.create_new_world
self.program_control_button.grid(column=0, row=0, padx=PAD_X, pady=PAD_Y)
self.load_world_button = tk.Button(self, highlightthickness=0, text="Load World", command=self.load_world)
self.load_world_button.grid(column=0, row=1, padx=PAD_X, pady=PAD_Y)
self.save_world_button = tk.Button(self, highlightthickness=0, text="Save World", command=self.save_world)
self.save_world_button.grid(column=0, row=2, padx=PAD_X, pady=PAD_Y)
self.create_direction_radio_buttons()
self.create_beeper_bag_radio_buttons()
self.create_action_radio_buttons()
def create_direction_radio_buttons(self):
self.dir_radio_frame = tk.Frame(self, bg=LIGHT_GREY)
self.dir_radio_frame.grid(row=3, column=0, padx=PAD_X, pady=PAD_Y, sticky="ew")
self.karel_direction_var = tk.StringVar()
self.karel_direction_var.set(DIRECTIONS_MAP_INVERSE[self.karel.direction])
self.karel_direction_var.trace("w", self.update_karel_direction)
dir_label = tk.Label(self.dir_radio_frame, text="Karel Direction: ", bg=LIGHT_GREY)
dir_label.pack(side="left")
tk.Radiobutton(self.dir_radio_frame, text="E", variable=self.karel_direction_var, value="east",
bg=LIGHT_GREY).pack(side="left")
tk.Radiobutton(self.dir_radio_frame, text="W", variable=self.karel_direction_var, value="west",
bg=LIGHT_GREY).pack(side="left")
tk.Radiobutton(self.dir_radio_frame, text="N", variable=self.karel_direction_var, value="north",
bg=LIGHT_GREY).pack(side="left")
tk.Radiobutton(self.dir_radio_frame, text="S", variable=self.karel_direction_var, value="south",
bg=LIGHT_GREY).pack(side="left")
def create_beeper_bag_radio_buttons(self):
self.beeper_bag_radio_frame = tk.Frame(self, bg=LIGHT_GREY)
self.beeper_bag_radio_frame.grid(row=4, column=0, padx=PAD_X, pady=PAD_Y, sticky="ew")
self.beeper_bag_var = tk.IntVar()
self.beeper_bag_var.set(self.karel.num_beepers)
self.beeper_bag_var.trace("w", self.update_karel_num_beepers)
beeper_bag_label = tk.Label(self.beeper_bag_radio_frame, text="Beeper Bag: ", bg=LIGHT_GREY)
beeper_bag_label.pack(side="left")
tk.Radiobutton(self.beeper_bag_radio_frame, text="Empty", variable=self.beeper_bag_var, value=0,
bg=LIGHT_GREY).pack(side="left")
tk.Radiobutton(self.beeper_bag_radio_frame, text="INFINITY", variable=self.beeper_bag_var, value=INFINITY,
bg=LIGHT_GREY).pack(side="left")
def create_action_radio_buttons(self):
self.action_radio_frame = tk.Frame(self, bg=LIGHT_GREY)
self.action_radio_frame.grid(row=5, column=0, padx=PAD_X, pady=PAD_Y, sticky="ew")
self.action_var = tk.StringVar()
self.action_var.set("move_karel")
action_label = tk.Label(self.action_radio_frame, text="Action: ", bg=LIGHT_GREY)
action_label.pack(side="left")
tk.Radiobutton(self.action_radio_frame, text="Move Karel", variable=self.action_var, value="move_karel",
bg=LIGHT_GREY).pack(anchor='w')
tk.Radiobutton(self.action_radio_frame, text="Add Wall", variable=self.action_var, value="add_wall",
bg=LIGHT_GREY).pack(anchor='w')
tk.Radiobutton(self.action_radio_frame, text="Remove Wall", variable=self.action_var, value="remove_wall",
bg=LIGHT_GREY).pack(anchor='w')
tk.Radiobutton(self.action_radio_frame, text="Add Beeper", variable=self.action_var, value="add_beeper",
bg=LIGHT_GREY).pack(anchor='w')
tk.Radiobutton(self.action_radio_frame, text="Remove Beeper", variable=self.action_var, value="remove_beeper",
bg=LIGHT_GREY).pack(anchor='w')
color_selection_frame = tk.Frame(self.action_radio_frame, bg=LIGHT_GREY)
color_selection_frame.pack(anchor="w")
self.color_var = tk.StringVar()
self.color_var.set(DEFAULT_COLOR)
tk.Radiobutton(color_selection_frame, text="Paint Corner", variable=self.action_var, value="paint_corner",
bg=LIGHT_GREY).pack(side='left')
self.color_dropdown = tk.OptionMenu(color_selection_frame, self.color_var, *COLOR_OPTIONS)
self.color_dropdown["bg"] = LIGHT_GREY
self.color_dropdown.pack(side="left")
tk.Radiobutton(self.action_radio_frame, text="Reset Corner", variable=self.action_var, value="reset_corner",
bg=LIGHT_GREY).pack(anchor='w')
def reset_direction_radio_buttons(self):
self.karel_direction_var.set(DIRECTIONS_MAP_INVERSE[self.karel.direction])
def reset_beeper_bag_radio_buttons(self):
self.beeper_bag_var.set(self.karel.num_beepers)
def update_karel_direction(self, *args):
new_dir = self.karel_direction_var.get()
self.karel.direction = DIRECTIONS_MAP[new_dir]
self.canvas.redraw_karel()
def update_karel_num_beepers(self, *args):
new_num_beepers = self.beeper_bag_var.get()
self.karel.num_beepers = new_num_beepers
def handle_mouse_event(self, event):
def apply_function(fn, *args):
if event_type == tk.EventType.ButtonPress:
self.last_action_event_loc = (avenue, street)
fn(avenue, street, *args)
self.canvas.redraw_corners(update=False)
self.canvas.redraw_beepers(update=False)
self.canvas.redraw_walls(update=False)
self.canvas.redraw_karel()
elif event_type == tk.EventType.Motion:
if (avenue, street) != self.last_action_event_loc:
self.last_action_event_loc = (avenue, street)
fn(avenue, street, *args)
self.canvas.redraw_corners(update=False)
self.canvas.redraw_beepers(update=False)
self.canvas.redraw_walls(update=False)
self.canvas.redraw_karel()
event_type = event.type
# only handle click events that happen in the world
if not self.canvas.click_in_world(event.x, event.y): return
avenue, street = self.canvas.calculate_location(event.x, event.y)
action = self.action_var.get()
if action == "move_karel":
if avenue != self.karel.avenue or street != self.karel.street:
self.karel.avenue = avenue
self.karel.street = street
self.canvas.redraw_karel()
elif action == "add_beeper":
apply_function(self.world.add_beeper)
elif action == "remove_beeper":
apply_function(self.world.remove_beeper)
elif action == "reset_corner":
apply_function(self.world.reset_corner)
elif action == "paint_corner":
apply_function(self.world.paint_corner, COLOR_MAP[self.color_var.get()])
elif action == "add_wall":
wall = self.canvas.find_nearest_wall(event.x, event.y, avenue, street)
if wall:
self.world.add_wall(wall)
self.canvas.redraw_walls()
elif action == "remove_wall":
wall = self.canvas.find_nearest_wall(event.x, event.y, avenue, street)
if wall:
self.world.remove_wall(wall)
self.canvas.redraw_walls()
def save_world(self):
filename = asksaveasfilename(initialdir="./worlds", title="Save Karel World",
filetypes=[("Karel Worlds", "*.w")], parent=self.master)
if filename == "": return
if not filename.endswith(".w"): filename = filename + ".w"
self.world.save_to_file(filename, self.karel)
if __name__ == "__main__":
root = tk.Tk()
world_builder = WorldBuilderApplication(master=root)
world_builder.mainloop()