├── jupiter.png
├── background.jpg
├── README.md
└── main.py


/jupiter.png:
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https://raw.githubusercontent.com/techwithtim/Slingshot-Effect-Simulation/HEAD/jupiter.png


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/background.jpg:
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https://raw.githubusercontent.com/techwithtim/Slingshot-Effect-Simulation/HEAD/background.jpg


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/README.md:
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 1 | # Slingshot-Effect-Simulation
 2 | 
 3 | # 💻 Launch Your Software Development Career Today!  
 4 | 
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 6 | 
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11 | - 🎯 **45,000+ job openings** in the market  
12 | 
13 | 👉 **[Start your journey today!](https://techwithtim.net/dev)**  
14 | No experience needed—just your determination. Future-proof your career and unlock six-figure potential like many of our students have!  
15 | 


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/main.py:
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  1 | import pygame
  2 | import math
  3 | 
  4 | pygame.init()
  5 | 
  6 | WIDTH, HEIGHT = 800, 600
  7 | win = pygame.display.set_mode((WIDTH, HEIGHT))
  8 | pygame.display.set_caption("Gravitational Slingshot Effect")
  9 | 
 10 | PLANET_MASS = 100
 11 | SHIP_MASS = 5
 12 | G = 5
 13 | FPS = 60
 14 | PLANET_SIZE = 50
 15 | OBJ_SIZE = 5
 16 | VEL_SCALE = 100
 17 | 
 18 | BG = pygame.transform.scale(pygame.image.load("background.jpg"), (WIDTH, HEIGHT))
 19 | PLANET = pygame.transform.scale(pygame.image.load("jupiter.png"), (PLANET_SIZE * 2, PLANET_SIZE * 2))
 20 | 
 21 | WHITE = (255, 255, 255)
 22 | RED = (255, 0, 0)
 23 | BLUE = (0, 0, 255)
 24 | 
 25 | class Planet:
 26 |     def __init__(self, x, y, mass):
 27 |         self.x = x
 28 |         self.y = y
 29 |         self.mass = mass
 30 |     
 31 |     def draw(self):
 32 |         win.blit(PLANET, (self.x - PLANET_SIZE, self.y - PLANET_SIZE))
 33 | 
 34 | class Spacecraft:
 35 |     def __init__(self, x, y, vel_x, vel_y, mass):
 36 |         self.x = x
 37 |         self.y = y
 38 |         self.vel_x = vel_x
 39 |         self.vel_y = vel_y
 40 |         self.mass = mass
 41 | 
 42 |     def move(self, planet=None):
 43 |         distance = math.sqrt((self.x - planet.x)**2 + (self.y - planet.y)**2)
 44 |         force = (G * self.mass * planet.mass) / distance ** 2
 45 |         
 46 |         acceleration = force / self.mass
 47 |         angle = math.atan2(planet.y - self.y, planet.x - self.x)
 48 | 
 49 |         acceleration_x = acceleration * math.cos(angle)
 50 |         acceleration_y = acceleration * math.sin(angle)
 51 | 
 52 |         self.vel_x += acceleration_x
 53 |         self.vel_y += acceleration_y
 54 | 
 55 |         self.x += self.vel_x
 56 |         self.y += self.vel_y
 57 |     
 58 |     def draw(self):
 59 |         pygame.draw.circle(win, RED, (int(self.x), int(self.y)), OBJ_SIZE)
 60 | 
 61 | def create_ship(location, mouse):
 62 |     t_x, t_y = location
 63 |     m_x, m_y = mouse
 64 |     vel_x = (m_x - t_x) / VEL_SCALE
 65 |     vel_y = (m_y - t_y) / VEL_SCALE
 66 |     obj = Spacecraft(t_x, t_y, vel_x, vel_y, SHIP_MASS)
 67 |     return obj
 68 | 
 69 | def main():
 70 |     running = True
 71 |     clock = pygame.time.Clock()
 72 | 
 73 |     planet = Planet(WIDTH // 2, HEIGHT // 2, PLANET_MASS)
 74 |     objects = []
 75 |     temp_obj_pos = None
 76 | 
 77 |     while running:
 78 |         clock.tick(FPS)
 79 | 
 80 |         mouse_pos = pygame.mouse.get_pos()
 81 |         for event in pygame.event.get():
 82 |             if event.type == pygame.QUIT:
 83 |                 running = False
 84 |             
 85 |             if event.type == pygame.MOUSEBUTTONDOWN:
 86 |                 if temp_obj_pos:
 87 |                     obj = create_ship(temp_obj_pos, mouse_pos)
 88 |                     objects.append(obj)
 89 |                     temp_obj_pos = None
 90 |                 else:
 91 |                     temp_obj_pos = mouse_pos
 92 | 
 93 |         win.blit(BG, (0, 0))
 94 | 
 95 |         if temp_obj_pos:
 96 |             pygame.draw.line(win, WHITE, temp_obj_pos, mouse_pos, 2)
 97 |             pygame.draw.circle(win, RED, temp_obj_pos, OBJ_SIZE)
 98 |         
 99 |         for obj in objects[:]:
100 |             obj.draw()
101 |             obj.move(planet)
102 |             off_screen = obj.x < 0 or obj.x > WIDTH or obj.y < 0 or obj.y > HEIGHT
103 |             collided = math.sqrt((obj.x - planet.x)**2 + (obj.y - planet.y)**2) <= PLANET_SIZE
104 |             if off_screen or collided:
105 |                 objects.remove(obj)
106 | 
107 |         planet.draw()
108 | 
109 |         pygame.display.update()
110 |     
111 |     pygame.quit()
112 | 
113 | if __name__ == "__main__":
114 |     main()


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