Draw a happy face using Arcade Library in Python

Difficulty Level : Expert
Last Updated : 01 Oct, 2020

Arcade is a Python module used for developing 2D games. For drawing a happy face, steps are as follows:

Import arcade library.

import arcade

Open the window.

arcade.open_window(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)

The function used with arcade is open_window. This command opens a window with a given size i.e width and height along with screen title.

Specify the values of parameters defined using open_window.

SCREEN_WIDTH = 600
SCREEN_HEIGHT = 600
SCREEN_TITLE = "Happy Face GfG "

Choose a colour for background screen of your output.

arcade.set_background_color(arcade.color.BLACK)

This command will tell the Arcade library that you start drawing.

arcade.start_render()

Write a function to draw the circle for the base of the face using the in-built function draw_circle_filled() function.

x = 300
y = 300
radius = 200
arcade.draw_circle_filled(x, y, radius, arcade.color.YELLOW)

Similarly, write function for drawing the right and left eye of the face using the draw_circle_filled() function.

# Draw the right eye
x = 370
y = 350
radius = 20
arcade.draw_circle_filled(x, y, radius, arcade.color.BLACK)
# Draw the left eye
x = 230
y = 350
radius = 20
arcade.draw_circle_filled(x, y, radius, arcade.color.BLACK)

For the happy face, smile is the most important part. Use draw_arc_outline() function to draw smile .

# Draw the smile
x = 300
y = 280
width = 120
height = 100
start_angle = 190
end_angle = 350
arcade.draw_arc_outline(x, y, width, height,
                       arcade.color.BLACK, 
                       start_angle, end_angle, 10)

This command will tell the arcade library that you are done with drawing.

# Finish drawing
arcade.finish_render()

This command is to keep the window open.

# Keep the window open until the user
# hits the 'close' button
arcade.run()

Complete Source Code:

Python3

import arcade 
  
  
# specify the parameters 
SCREEN_WIDTH = 600
SCREEN_HEIGHT = 600
SCREEN_TITLE = "Happy Face GfG "
  
# Open the window. Set the window title and dimensions 
arcade.open_window(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE) 
  
# Set the background color 
arcade.set_background_color(arcade.color.BLACK) 
  
# start render process 
arcade.start_render() 
  
# Draw the face 
x = 300
y = 300
radius = 200
arcade.draw_circle_filled(x, y, radius, arcade.color.YELLOW) 
  
# Draw the right eye 
x = 370
y = 350
radius = 20
arcade.draw_circle_filled(x, y, radius, arcade.color.BLACK) 
  
# Draw the left eye 
x = 230
y = 350
radius = 20
arcade.draw_circle_filled(x, y, radius, arcade.color.BLACK) 
  
# Draw the smile 
x = 300
y = 280
width = 120
height = 100
start_angle = 190
end_angle = 350
arcade.draw_arc_outline(x, y, width, height, arcade.color.BLACK, 
                        start_angle, end_angle, 10) 
  
# Finish drawing 
arcade.finish_render() 
  
# Keep the window open until the user hits  
# the 'close' button 
arcade.run()

Output:

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