hw2a.py

hw2a.py

import canvas
from random import random

canvas.set_size(1000, 600)
canvas.draw_image('_backround', 0, 0, 1000, 600)

def draw_tree(rootx, rooty, trunk_height, leaf_height, leaf_width, trunk_width):
  canvas.begin_path()
  canvas.move_to(rootx-leaf_width/2, rooty+trunk_height)
  canvas.add_line(rootx+leaf_width/2, rooty+trunk_height)
  canvas.add_line(rootx, rooty+leaf_height+trunk_height)
  canvas.close_path()
  canvas.set_fill_color(0.00, 0.50, 0.00)
  canvas.fill_path()
  canvas.set_line_width(trunk_width)
  canvas.set_stroke_color(0.50, 0.25, 0.15)
  canvas.draw_line(rootx, rooty, rootx, rooty+trunk_height)

def draw_mushroom(center_x, center_y, radius):
  import math
  canvas.move_to(center_x-radius, center_y)
  n = 64
  for i in range(n):
    canvas.add_quad_curve(center_x - math.cos(math.pi*i/n)*radius, 
                          math.sin(math.pi*i/n)*radius + center_y,
                          center_x - math.cos(math.pi*(i+1)/n)*radius, 
                          math.sin(math.pi*(i+1)/n)*radius + center_y)
  canvas.close_path()
  canvas.fill_path()
  canvas.set_fill_color(1, 1, 1)
  canvas.fill_ellipse(center_x, center_y+radius/6, radius/4, radius/3)
  canvas.fill_ellipse(center_x-radius*0.7, center_y+radius*0.07, radius/2, radius/4)  
  canvas.fill_ellipse(center_x-radius*0.4, center_y+radius/2, radius/3, radius/3)
  canvas.fill_ellipse(center_x+radius*0.5, center_y+radius*0.1, radius/4, radius/4)
  canvas.fill_ellipse(center_x+radius*0.3, center_y+radius*0.5, radius/3, radius/4)
  
  canvas.set_stroke_color(1.00, 1.00, 0.925)
  canvas.set_line_width(radius/1.5)
  canvas.draw_line(center_x, center_y-radius, center_x, center_y)

  canvas.set_size(1000,600)
  canvas.set_fill_color(random(), random(), random())

draw_mushroom(500, 200, 77)