Creating a radar sweep animation using arcade in Python

Creating a radar sweep animation using arcade in Python

Creating a radar sweep animation in Python using the Arcade library can be an interesting project. The idea is to draw a line or a beam that sweeps around a central point, resembling a radar screen. Below, I'll provide a simple example of how to implement this.

Step 1: Install Arcade

First, make sure you have the Arcade library installed. You can install it via pip if you haven't already:

pip install arcade

Step 2: Create the Radar Sweep Animation

Here��s how you can create a basic radar sweep animation:

import arcade import math SCREEN_WIDTH = 600 SCREEN_HEIGHT = 600 SCREEN_TITLE = "Radar Sweep Example" class RadarSweepWindow(arcade.Window): def __init__(self): super().__init__(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE) # Set the background color arcade.set_background_color(arcade.color.BLACK) # Initialize the angle for the sweep self.angle = 0 def on_draw(self): """ Render the screen. """ # Clear the screen and start rendering arcade.start_render() # Draw radar center_x = SCREEN_WIDTH // 2 center_y = SCREEN_HEIGHT // 2 radius = 200 # Draw a circle for the radar arcade.draw_circle_outline(center_x, center_y, radius, arcade.color.GREEN, 2) # Calculate the end point of our radar sweep end_x = center_x + radius * math.sin(math.radians(self.angle)) end_y = center_y + radius * math.cos(math.radians(self.angle)) # Draw the radar sweep line arcade.draw_line(center_x, center_y, end_x, end_y, arcade.color.GREEN, 2) def on_update(self, delta_time): """ Movement and game logic """ # Increase the angle by 1 degree self.angle += 1 self.angle %= 360 def main(): """ Main method """ window = RadarSweepWindow() arcade.run() if __name__ == "__main__": main()

In this example:

  • A window is created with a title "Radar Sweep Example".
  • The on_draw method is overridden to render the radar sweep. It draws a circle representing the radar and a line that moves around the circle to create the sweep effect.
  • The on_update method updates the angle of the sweep line, making it rotate around the center.
  • The rotation angle is incremented each time on_update is called, and it wraps around at 360 degrees to create a continuous sweep effect.

Run this script, and you will see a window displaying a radar with a sweeping green line.

Customizing the Radar

You can customize this example by changing the radar's size, sweep speed, colors, and adding more details like radar spokes or range markers. The Arcade library provides a lot of flexibility for further enhancements and creativity.

More Tags

executorservice spring-4 cloudinary teradata cloudera react-state-management swagger-ui jquery-animate partial commit

More Programming Guides

Other Guides

More Programming Examples