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Commit 823f0aa

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add planet simulator tutorial
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‎README.md‎

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@@ -218,5 +218,6 @@ This is a repository of all the tutorials of [The Python Code](https://www.thepy
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- [How to Make a File Explorer using Tkinter in Python](https://www.thepythoncode.com/article/create-a-simple-file-explorer-using-tkinter-in-python). ([code](gui-programming/file-explorer))
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- [How to Make a Calculator with Tkinter in Python](https://www.thepythoncode.com/article/make-a-calculator-app-using-tkinter-in-python). ([code](gui-programming/calculator-app))
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- [How to Make a Typing Speed Tester with Tkinter in Python](https://www.thepythoncode.com/article/how-to-make-typing-speed-tester-in-python-using-tkinter). ([code](gui-programming/type-speed-tester))
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- [How to Make a Planet Simulator with PyGame in Python](https://www.thepythoncode.com/article/make-a-planet-simulator-using-pygame-in-python). ([code](gui-programming/planet-simulator))
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For any feedback, please consider pulling requests.
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‎gui-programming/planet-simulator/README.md‎

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# [How to Make a Planet Simulator with PyGame in Python](https://www.thepythoncode.com/article/make-a-planet-simulator-using-pygame-in-python)
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‎gui-programming/planet-simulator/planet_simulator.py‎

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# Imports
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import sys
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import pygame
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# We will work with the Vector2 because it has some useful functions.
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from pygame.math import Vector2
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from random import randrange
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import ctypes
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# Enable High Dots Per Inch so the image displayed on the window is sharper.
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ctypes.windll.shcore.SetProcessDpiAwareness(1)
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# Configuration
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pygame.init()
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fps = 60
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fpsClock = pygame.time.Clock()
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# Window Size
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windowdim = Vector2(800, 800)
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screen = pygame.display.set_mode((int(windowdim.x), int(windowdim.y)))
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# all the Planets are stored here
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# They will append themselves.
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planets = []
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# The Planet Class which will handle drawing and calculating planets.
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class Planet():
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def __init__(self, position, delta=Vector2(0, 0), radius=10, imovable=False):
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# Where the planet is at the moment
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self.position = position
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# The Radius determines how much this planet effects others
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self.radius = radius
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# The Velocity
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self.delta = delta
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# If this planet is moving
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self.imovable = imovable
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# If this planet can be eaten by others.
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self.eatable = False
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# Appending itself to the list so its process
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# function will later be called in a loop.
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planets.append(self)
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def process(self):
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# This function will be called once every frame
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# and it is responsible for calculating where the planet will go.
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# No Movement Calculations will happen if the planet doesnt move at all.
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# it also wont be eaten.
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if not self.imovable:
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for i in planets:
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if not i is self:
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try:
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if self.eatable:
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if self.position.distance_to(i.position) < self.radius + i.radius:
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print('Eaten')
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i.radius += self.radius
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planets.remove(self)
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dir_from_obj = (i.position - self.position).normalize() * 0.01 * (i.radius / 10)
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self.delta += dir_from_obj
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except:
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print('In the same spot')
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self.position += self.delta
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# Drawing the planet at the current position.
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pygame.draw.circle(
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screen,
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[255, 255, 255],
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self.position,
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self.radius,
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)
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# Sun and two opposing Planets
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""" Planet(Vector2(400, 400), radius=50, imovable=True)
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Planet(Vector2(400, 200), delta=Vector2(3, 0), radius=10)
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Planet(Vector2(400, 600), delta=Vector2(-3, 0), radius=10) """
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# Sun and four opposing Planets
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Planet(Vector2(400, 400), radius=50, imovable=True)
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Planet(Vector2(400, 200), delta=Vector2(3, 0), radius=10)
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Planet(Vector2(400, 600), delta=Vector2(-3, 0), radius=10)
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Planet(Vector2(600, 400), delta=Vector2(0, 3), radius=10)
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Planet(Vector2(200, 400), delta=Vector2(0, -3), radius=10)
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# Two Suns and two planets
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""" Planet(Vector2(600, 400), radius=20, imovable=True)
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Planet(Vector2(200, 400), radius=20, imovable=True)
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Planet(Vector2(400, 200), delta=Vector2(0, 0), radius=10)
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Planet(Vector2(400, 210), delta=Vector2(1, 2), radius=5) """
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# Grid
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# gridDimension = 10
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# gridgap = 80
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# for x in range(gridDimension):
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# for y in range(gridDimension):
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# Planet(Vector2(gridgap * x + 40, gridgap * y + 40), radius=3, imovable=True)
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# Planet(Vector2(200, 200), delta=Vector2(randrange(-3, 3), 2), radius=5)
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# Game loop.
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while True:
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screen.fill((0, 0, 0))
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for event in pygame.event.get():
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if event.type == pygame.QUIT:
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pygame.quit()
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sys.exit()
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for p in planets:
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p.process()
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pygame.display.flip()
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fpsClock.tick(fps)
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‎gui-programming/planet-simulator/requirements.txt‎

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pygame

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