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403 lines
12 KiB
403 lines
12 KiB
# graphicsUtils.py
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# ----------------
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# Licensing Information: You are free to use or extend these projects for
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# educational purposes provided that (1) you do not distribute or publish
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# solutions, (2) you retain this notice, and (3) you provide clear
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# attribution to UC Berkeley, including a link to http://ai.berkeley.edu.
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#
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# Attribution Information: The Pacman AI projects were developed at UC Berkeley.
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# The core projects and autograders were primarily created by John DeNero
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# (denero@cs.berkeley.edu) and Dan Klein (klein@cs.berkeley.edu).
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# Student side autograding was added by Brad Miller, Nick Hay, and
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# Pieter Abbeel (pabbeel@cs.berkeley.edu).
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import sys
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import math
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import random
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import string
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import time
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import types
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import Tkinter
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import os.path
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_Windows = sys.platform == 'win32' # True if on Win95/98/NT
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_root_window = None # The root window for graphics output
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_canvas = None # The canvas which holds graphics
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_canvas_xs = None # Size of canvas object
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_canvas_ys = None
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_canvas_x = None # Current position on canvas
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_canvas_y = None
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_canvas_col = None # Current colour (set to black below)
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_canvas_tsize = 12
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_canvas_tserifs = 0
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def formatColor(r, g, b):
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return '#%02x%02x%02x' % (int(r * 255), int(g * 255), int(b * 255))
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def colorToVector(color):
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return map(lambda x: int(x, 16) / 256.0, [color[1:3], color[3:5], color[5:7]])
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if _Windows:
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_canvas_tfonts = ['times new roman', 'lucida console']
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else:
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_canvas_tfonts = ['times', 'lucidasans-24']
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pass # XXX need defaults here
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def sleep(secs):
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global _root_window
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if _root_window == None:
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time.sleep(secs)
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else:
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_root_window.update_idletasks()
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_root_window.after(int(1000 * secs), _root_window.quit)
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_root_window.mainloop()
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def begin_graphics(width=640, height=480, color=formatColor(0, 0, 0), title=None):
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global _root_window, _canvas, _canvas_x, _canvas_y, _canvas_xs, _canvas_ys, _bg_color
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# Check for duplicate call
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if _root_window is not None:
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# Lose the window.
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_root_window.destroy()
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# Save the canvas size parameters
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_canvas_xs, _canvas_ys = width - 1, height - 1
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_canvas_x, _canvas_y = 0, _canvas_ys
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_bg_color = color
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# Create the root window
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_root_window = Tkinter.Tk()
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_root_window.protocol('WM_DELETE_WINDOW', _destroy_window)
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_root_window.title(title or 'Graphics Window')
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_root_window.resizable(0, 0)
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# Create the canvas object
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try:
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_canvas = Tkinter.Canvas(_root_window, width=width, height=height)
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_canvas.pack()
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draw_background()
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_canvas.update()
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except:
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_root_window = None
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raise
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# Bind to key-down and key-up events
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_root_window.bind( "<KeyPress>", _keypress )
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_root_window.bind( "<KeyRelease>", _keyrelease )
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_root_window.bind( "<FocusIn>", _clear_keys )
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_root_window.bind( "<FocusOut>", _clear_keys )
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_root_window.bind( "<Button-1>", _leftclick )
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_root_window.bind( "<Button-2>", _rightclick )
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_root_window.bind( "<Button-3>", _rightclick )
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_root_window.bind( "<Control-Button-1>", _ctrl_leftclick)
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_clear_keys()
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_leftclick_loc = None
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_rightclick_loc = None
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_ctrl_leftclick_loc = None
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def _leftclick(event):
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global _leftclick_loc
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_leftclick_loc = (event.x, event.y)
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def _rightclick(event):
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global _rightclick_loc
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_rightclick_loc = (event.x, event.y)
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def _ctrl_leftclick(event):
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global _ctrl_leftclick_loc
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_ctrl_leftclick_loc = (event.x, event.y)
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def wait_for_click():
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while True:
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global _leftclick_loc
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global _rightclick_loc
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global _ctrl_leftclick_loc
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if _leftclick_loc != None:
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val = _leftclick_loc
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_leftclick_loc = None
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return val, 'left'
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if _rightclick_loc != None:
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val = _rightclick_loc
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_rightclick_loc = None
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return val, 'right'
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if _ctrl_leftclick_loc != None:
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val = _ctrl_leftclick_loc
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_ctrl_leftclick_loc = None
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return val, 'ctrl_left'
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sleep(0.05)
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def draw_background():
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corners = [(0,0), (0, _canvas_ys), (_canvas_xs, _canvas_ys), (_canvas_xs, 0)]
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polygon(corners, _bg_color, fillColor=_bg_color, filled=True, smoothed=False)
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def _destroy_window(event=None):
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sys.exit(0)
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# global _root_window
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# _root_window.destroy()
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# _root_window = None
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#print "DESTROY"
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def end_graphics():
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global _root_window, _canvas, _mouse_enabled
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try:
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try:
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sleep(1)
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if _root_window != None:
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_root_window.destroy()
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except SystemExit, e:
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print 'Ending graphics raised an exception:', e
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finally:
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_root_window = None
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_canvas = None
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_mouse_enabled = 0
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_clear_keys()
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def clear_screen(background=None):
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global _canvas_x, _canvas_y
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_canvas.delete('all')
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draw_background()
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_canvas_x, _canvas_y = 0, _canvas_ys
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def polygon(coords, outlineColor, fillColor=None, filled=1, smoothed=1, behind=0, width=1):
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c = []
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for coord in coords:
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c.append(coord[0])
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c.append(coord[1])
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if fillColor == None: fillColor = outlineColor
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if filled == 0: fillColor = ""
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poly = _canvas.create_polygon(c, outline=outlineColor, fill=fillColor, smooth=smoothed, width=width)
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if behind > 0:
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_canvas.tag_lower(poly, behind) # Higher should be more visible
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return poly
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def square(pos, r, color, filled=1, behind=0):
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x, y = pos
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coords = [(x - r, y - r), (x + r, y - r), (x + r, y + r), (x - r, y + r)]
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return polygon(coords, color, color, filled, 0, behind=behind)
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def circle(pos, r, outlineColor, fillColor, endpoints=None, style='pieslice', width=2):
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x, y = pos
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x0, x1 = x - r - 1, x + r
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y0, y1 = y - r - 1, y + r
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if endpoints == None:
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e = [0, 359]
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else:
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e = list(endpoints)
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while e[0] > e[1]: e[1] = e[1] + 360
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return _canvas.create_arc(x0, y0, x1, y1, outline=outlineColor, fill=fillColor,
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extent=e[1] - e[0], start=e[0], style=style, width=width)
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def image(pos, file="../../blueghost.gif"):
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x, y = pos
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# img = PhotoImage(file=file)
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return _canvas.create_image(x, y, image = Tkinter.PhotoImage(file=file), anchor = Tkinter.NW)
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def refresh():
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_canvas.update_idletasks()
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def moveCircle(id, pos, r, endpoints=None):
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global _canvas_x, _canvas_y
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x, y = pos
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# x0, x1 = x - r, x + r + 1
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# y0, y1 = y - r, y + r + 1
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x0, x1 = x - r - 1, x + r
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y0, y1 = y - r - 1, y + r
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if endpoints == None:
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e = [0, 359]
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else:
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e = list(endpoints)
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while e[0] > e[1]: e[1] = e[1] + 360
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if os.path.isfile('flag'):
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edit(id, ('extent', e[1] - e[0]))
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else:
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edit(id, ('start', e[0]), ('extent', e[1] - e[0]))
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move_to(id, x0, y0)
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def edit(id, *args):
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_canvas.itemconfigure(id, **dict(args))
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def text(pos, color, contents, font='Helvetica', size=12, style='normal', anchor="nw"):
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global _canvas_x, _canvas_y
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x, y = pos
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font = (font, str(size), style)
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return _canvas.create_text(x, y, fill=color, text=contents, font=font, anchor=anchor)
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def changeText(id, newText, font=None, size=12, style='normal'):
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_canvas.itemconfigure(id, text=newText)
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if font != None:
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_canvas.itemconfigure(id, font=(font, '-%d' % size, style))
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def changeColor(id, newColor):
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_canvas.itemconfigure(id, fill=newColor)
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def line(here, there, color=formatColor(0, 0, 0), width=2):
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x0, y0 = here[0], here[1]
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x1, y1 = there[0], there[1]
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return _canvas.create_line(x0, y0, x1, y1, fill=color, width=width)
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##############################################################################
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### Keypress handling ########################################################
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##############################################################################
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# We bind to key-down and key-up events.
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_keysdown = {}
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_keyswaiting = {}
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# This holds an unprocessed key release. We delay key releases by up to
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# one call to keys_pressed() to get round a problem with auto repeat.
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_got_release = None
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def _keypress(event):
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global _got_release
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#remap_arrows(event)
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_keysdown[event.keysym] = 1
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_keyswaiting[event.keysym] = 1
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# print event.char, event.keycode
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_got_release = None
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def _keyrelease(event):
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global _got_release
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#remap_arrows(event)
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try:
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del _keysdown[event.keysym]
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except:
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pass
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_got_release = 1
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def remap_arrows(event):
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# TURN ARROW PRESSES INTO LETTERS (SHOULD BE IN KEYBOARD AGENT)
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if event.char in ['a', 's', 'd', 'w']:
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return
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if event.keycode in [37, 101]: # LEFT ARROW (win / x)
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event.char = 'a'
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if event.keycode in [38, 99]: # UP ARROW
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event.char = 'w'
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if event.keycode in [39, 102]: # RIGHT ARROW
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event.char = 'd'
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if event.keycode in [40, 104]: # DOWN ARROW
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event.char = 's'
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def _clear_keys(event=None):
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global _keysdown, _got_release, _keyswaiting
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_keysdown = {}
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_keyswaiting = {}
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_got_release = None
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def keys_pressed(d_o_e=Tkinter.tkinter.dooneevent,
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d_w=Tkinter.tkinter.DONT_WAIT):
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d_o_e(d_w)
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if _got_release:
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d_o_e(d_w)
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return _keysdown.keys()
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def keys_waiting():
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global _keyswaiting
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keys = _keyswaiting.keys()
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_keyswaiting = {}
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return keys
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# Block for a list of keys...
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def wait_for_keys():
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keys = []
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while keys == []:
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keys = keys_pressed()
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sleep(0.05)
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return keys
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def remove_from_screen(x,
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d_o_e=Tkinter.tkinter.dooneevent,
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d_w=Tkinter.tkinter.DONT_WAIT):
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_canvas.delete(x)
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d_o_e(d_w)
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def _adjust_coords(coord_list, x, y):
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for i in range(0, len(coord_list), 2):
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coord_list[i] = coord_list[i] + x
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coord_list[i + 1] = coord_list[i + 1] + y
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return coord_list
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def move_to(object, x, y=None,
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d_o_e=Tkinter.tkinter.dooneevent,
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d_w=Tkinter.tkinter.DONT_WAIT):
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if y is None:
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try: x, y = x
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except: raise 'incomprehensible coordinates'
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horiz = True
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newCoords = []
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current_x, current_y = _canvas.coords(object)[0:2] # first point
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for coord in _canvas.coords(object):
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if horiz:
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inc = x - current_x
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else:
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inc = y - current_y
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horiz = not horiz
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newCoords.append(coord + inc)
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_canvas.coords(object, *newCoords)
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d_o_e(d_w)
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def move_by(object, x, y=None,
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d_o_e=Tkinter.tkinter.dooneevent,
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d_w=Tkinter.tkinter.DONT_WAIT, lift=False):
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if y is None:
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try: x, y = x
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except: raise Exception, 'incomprehensible coordinates'
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horiz = True
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newCoords = []
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for coord in _canvas.coords(object):
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if horiz:
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inc = x
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else:
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inc = y
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horiz = not horiz
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newCoords.append(coord + inc)
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_canvas.coords(object, *newCoords)
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d_o_e(d_w)
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if lift:
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_canvas.tag_raise(object)
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def writePostscript(filename):
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"Writes the current canvas to a postscript file."
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psfile = file(filename, 'w')
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psfile.write(_canvas.postscript(pageanchor='sw',
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y='0.c',
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x='0.c'))
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psfile.close()
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ghost_shape = [
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(0, - 0.5),
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(0.25, - 0.75),
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(0.5, - 0.5),
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(0.75, - 0.75),
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(0.75, 0.5),
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(0.5, 0.75),
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(- 0.5, 0.75),
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(- 0.75, 0.5),
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(- 0.75, - 0.75),
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(- 0.5, - 0.5),
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(- 0.25, - 0.75)
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]
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if __name__ == '__main__':
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begin_graphics()
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clear_screen()
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ghost_shape = [(x * 10 + 20, y * 10 + 20) for x, y in ghost_shape]
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g = polygon(ghost_shape, formatColor(1, 1, 1))
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move_to(g, (50, 50))
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circle((150, 150), 20, formatColor(0.7, 0.3, 0.0), endpoints=[15, - 15])
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sleep(2)
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