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 --[[User:Thiebaut|D. Thiebaut]] ([[User talk:Thiebaut|talk]]) 12:56, 29 April 2014 (EDT)
 ----
+<onlydft>
+<br />
+=Source=
+<br />
 <source lang="python">
 #----------------------------------------------------------------------
@@ Line 321: / Line 327: @@
 </source>
 <br />
+==Output==
 <br />
+<center>[[Image:CSC111UnhappyEaster.png|500px]]</center>
 <br />
 <br />
+=Program 2=
 <br />
+This program uses inheritance to define the car classes.
+<br />
+<source lang="python">
+# hw11b.py
+# Thuy Nguyen (ce)
+# This program prints out an example of a wrapping paper print
+# where the theme is cars, the background color is light pink,
+# and displays "Happy Easter" as the message. The uses two
+# different types of cars where the program, generates rows of cars
+# alternating between the two types of cars. The message is
+# displayed in the middle of the wrapping paper inside a light
+# blue rectangle.
+#
+# -------------------------------------------------------------------
+from graphics import GraphicsWindow
+from random import seed
+from random import randrange
+MAXWIDTH = 800
+MAXHEIGHT = 600
+class Circle:
+    # a class containing 4 private member variables:
+    # - center x position of circle (integer)
+    # - center y position of circle (integer)
+    # - diameter of circle (integer)
+    # - color of circle (list of 3 integers between 0 and 255)
+    # methods:
+    # draw( canvas ): the circle draws itself
+    # constructor: initializes a circle with all fields
+    def __init__( self, x, y, diameter, color ):
+        self._x       = x
+        self._y       = y
+        self._diameter= diameter
+        self._color  = color
+    # draws a circle at defined (x,y) coordinates with specified color
+    def draw( self, canvas ):
+        canvas.setFill( self._color[0], self._color[1], self._color[2] )
+        canvas.drawOval( self._x-self._diameter//2,
+                         self._y-self._diameter//2,
+                         self._diameter,
+                         self._diameter )
+class Wheel:
+    # a class containing 3 private member variables:
+    # - center x position of wheel (integer)
+    # - center y position of wheel (integer)
+    # - diameter of wheel (integer)
+    # methods:
+    # draw( canvas ): the wheel draws itself
+    # constructor: initializes two wheels using Circle class
+    def __init__( self, x, y, diameter ):
+        self._c1 = Circle( x, y, diameter, ( 0,0,0 ) )
+        self._c2 = Circle( x, y, diameter/2, ( 200, 200, 200 ) )
+    # draws two wheels
+    def draw( self, canvas ):
+        self._c1.draw( canvas )
+        self._c2.draw( canvas )
+class Car:
+    # a class containing 5 private member variables:
+    # - x position of car (integer)
+    # - y position of car (integer)
+    # - width of car (integer)
+    # - height of car (integer)
+    # - color of car (list of 3 integers between 0 and 255)
+    # methods:
+    # draw( canvas ): the car draws itself
+    # constructor: initializes a car with all fields
+    def __init__( self, x, y, width, height, color ):
+        self._x       = x
+        self._y       = y
+        self._width   = width
+        self._height  = height
+        self._color   = color
+        # build the body
+        self._body = Rectangle( x, y, width, height, color )
+        # build the wheels
+        self._w1 = Wheel( x + width//4, y + height, width//5 )
+        self._w2 = Wheel( x + 3*width//4, y + height, width//5 )
+    # draws a car with its body and wheels
+    def draw( self, canvas ):
+        self._body.draw( canvas )
+        self._w1.draw( canvas )
+        self._w2.draw( canvas )
+class CarTop( Car ):
+    # a class inherited from Car class with one additional private member variable
+    # - the top hood of a car
+    # methods:
+    # draw( canvas ): the car with top draws itself
+    def __init__( self, x, y, width, height, color, topColor ):
+        super().__init__( x, y, width, height, color )
+        self._top = Rectangle( x+width//4, y-height//2, width//2, height//2, topColor )
+    # draws a car with a top hood
+    def draw( self, canvas ):
+        super().draw( canvas )
+        self._top.draw( canvas )
+class CarTop2( Car ):
+    # a class inherited from Car class with two additional private member variables
+    # - the top hood of a car
+    # - the window of a car
+    # methods:
+    # draw( canvas ): the car with top and window draws itself
+    def __init__( self, x, y, width, height, color, topColor ):
+        super().__init__( x, y, width, height, color )
+        self._top = Rectangle( x+width//2, y-height//2, width//2, height//2, topColor )
+        self._window = Rectangle( x+width//3, y+height//4, width//3, height//3, ( 0,0,0 ) )
+    # draws a car with a top hood and window
+    def draw( self, canvas ):
+        super().draw( canvas )
+        self._top.draw( canvas )
+        self._window.draw( canvas )
+class Rectangle:
+    # a class containing 5 private member variables
+    # - x position of rectangle (integer)
+    # - y position of rectanle (integer)
+    # - width of rectangle (integer)
+    # - height of rectangle (integer)
+    # - color of rectangle (list of 3 integers between 0 and 255)
+    # methods:
+    # draw( canvas ): the rectangle draws itself
+    # constructor: initializes rectangle with all fields
+    def __init__( self, x, y, width, height, color ):
+        self._x      = x
+        self._y      = y
+        self._width  = width
+        self._height = height
+        self._color  = color
+    # draws a rectangle
+    def draw( self, canvas ):
+        canvas.setFill( self._color[0], self._color[1], self._color[2] )
+        canvas.drawRectangle( self._x, self._y, self._width, self._height )
+# --------------------------------------------------------------------------------
+# setRandomColor(): sets a random color to a car's body and hood
+# --------------------------------------------------------------------------------
+def setRandomColor():
+    r = randrange( 255 )
+    g = randrange( 255 )
+    b = randrange( 255 )
+    return r, g, b
+# --------------------------------------------------------------------------------
+# multipleCars( canvas ): displays the cars such that they are organized into
+# rows, one above the other, and alternating each type of car in separate rows
+# --------------------------------------------------------------------------------
+def multipleCars( canvas ):
+    width = 100
+    height = 25
+    for x in range( 0, MAXWIDTH, 11*width//10 ):
+        for y in range( 0, MAXHEIGHT, 4*height ):
+            color = setRandomColor()
+            topColor = setRandomColor()
+            c = CarTop( x, y, width, height, color, topColor )
+            c.draw( canvas )
+        for y in range( 2*height, MAXHEIGHT, 4*height ):
+            color = setRandomColor()
+            topColor = setRandomColor()
+            c2 = CarTop2( x, y, width, height, color, topColor )
+            c2.draw( canvas )
+# ================================================
+#                   Main Program
+# ================================================
+def main():
+    seed()
+    win = GraphicsWindow(MAXWIDTH, MAXHEIGHT)
+    canvas = win.canvas()
+    multipleCars( canvas )
+    canvas.setBackground( 'thistle1' )
+    canvas.setFill( 'azure' )
+    canvas.drawRectangle( MAXWIDTH // 3, 2*MAXHEIGHT // 5, 325, 60 )
+    canvas.setTextFont( "times", 40, "bold" )
+    canvas.drawText( MAXWIDTH // 3, 2*MAXHEIGHT // 5, "Happy Easter" )
+    win.wait()
+    win.close()
+main()
+</source>
 <br />
 <br />
+</onlydft>
 <br />
 <br />

Difference between revisions of "CSC111 Homework 11 Solution Program 2014"

Latest revision as of 21:45, 9 January 2015

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