pgl

Calvin (Deutschbein)

W5Fri: 27 Sep

Announcements

• By next Monday 11:59 PM: "Project 1: Wordle"
  • By Fri: Random word
  • By Sat: Change rows
  • By Sun: Color keys.
• Midterm next Friday.
  • Practice Exams Posted

Today

• Aside on Wordle
• More graphics
• More on functions

redact

def redact(word:str, secret:str) -> str: for i in range(len(word)): if word[i] == secret[i]: word = word[:i] + '*' + word[i+1:] # or ' ' etc DEBUG and print('Redact '+secret[i]+' at '+str(i)) return word
• Imagine, e.g. "sassy" and "glass" >>> DEBUG = True >>> redact('glass','sassy') Redact s at 3 'gla*s'

censor

• May also want to keep secret whether letters are in the secret at all! def censor_letter(letter:str, word:str) -> str: # remove ONLY THE FIRST case of letter in word for index in range(len(word)): if word[index] == letter: return word[:index] + '-' + word[index+1:] return word # if letter isn't present
• Imagine, e.g. "s" and "sas*y" >>> censor_letter('s', 'sas*y') '-as*y'

censor

• Perhaps we want to censor every letter in some secret word. def censor(word:str, secret:str) -> str: for letter in secret: word = censor_letter(letter, word) return word
• Imagine, e.g. "sas*y" and "claps" >>> censor("sas*y", "claps") '--s*y'

censor

• If we want to debug, we need to use local variables... def censor(word:str, secret:str) -> str: for letter in secret: censored = censor_letter(letter, word) if censored != word: DEBUG and print("Censored " + letter) word = censored return word
• Imagine, e.g. "sas*y" and "claps" Censored a Censored s '--s*y'

Blue Rectangle!

from pgl import *
gw = GWindow(500, 200) # like WordleGWindow
rect = GRect(150,50,0,0) #  answer = "blimp"
rect.set_color("Blue") # answer.upper()
rect.set_filled(True) 
gw.add(rect) # like word_to_row(answer)

The Coordinate System

• Positions and distances on the screen are measured in terms of pixels
• Origin is in the upper left instead of lower left
• Vertical values increase as you move downwards

Other Simple Objects

Functions to create simple geometric objects:

• Rectangles/Squares + Circles/Ovals!
  • GRect( x, y, width, height )
  • GOval( x, y, width, height )
  • Creates a rectangle whose upper left corner is at (x,y) of the specified size
• Lines!
  • GLine( x1, y1, x2, y2 )
  • Creates a line extending from (x1,y1) to (x2,y2)

For Wordle

• Lower numbered rows are above higher numbered rows.
• Lower numbered columns are leftward of higher numbered columns.
  
  

  (0,0)	(0,1)	(0,2)	(0,3)	(0,4)
  (1,0)	(1,1)	(1,2)	(1,3)	(1,4)
  (2,0)	(2,1)	(2,2)	(2,3)	(2,4)
  (3,0)	(3,1)	(3,2)	(3,3)	(3,4)
  (4,0)	(4,1)	(4,2)	(4,3)	(4,4)
  (5,0)	(5,1)	(5,2)	(5,3)	(5,4)

• gw.set_square_letter(1, 3, '$') # example

  			$

GWindow

• Akin to Wordle: gw = GWindow(width, height)
• You have several more operations:

  gw.add(object)	Adds an object to the window
  gw.add(object, x, y)	Adds an object to the window after moving it to (x,y)
  gw.remove(object)	Removes an object from the window
  gw.get_width()	Returns the width of the graphics window in pixels
  gw.get_height()	Returns the height of the graphics window in pixels

GObject

• The following are used on things like rectangles, imagine:' object = GRect(150,50,0,0) # like saying answer = "blimp"

object.get_x()	Returns the x coordinate of this object
object.get_y()	Returns the y coordinate of this object
object.get_width()	Returns the width of this object
object.get_height()	Returns the height of this object
object.set_color(color)	Sets the color of the object to the specified color

• All coordinates and distances are measured in pixels

GFillableObject

• Some things, like Wordle letterboxes, can be filled in with a color. gw.set_square_color(row, col, color)
• Wordle squares are a lot like GRects... object = GRect(150,50,0,0)

object.set_filled(bool)	Sets the fill state of the object
object.set_fill_color(color)	Sets the color to be used to fill the interior, otherwise same as the outer line
object.get_fill_color()	Gets the current color used to display the object interior
object.is_filled()	Returns True or False depending on whether the object is currently filled

Announcements

• By next Monday 11:59 PM: "Project 1: Wordle"
  • By Tue: Display a word
  • By Wed: Check a guess
  • By Thr: Color letters
  • By Fri: Random word
  • By Sat: Change rows
  • By Sun: Color keys.