├── .gitpod.yml
├── README.md
├── projectile_motion.py
└── requirements.txt


/.gitpod.yml:
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 1 | image: gitpod/workspace-full-vnc
 2 | ports:
 3 |   - port: 5900
 4 |     onOpen: ignore
 5 |   - port: 6080
 6 |     onOpen: open-preview
 7 | tasks:
 8 |   - init: pip3 install -r requirements.txt
 9 |     command: python3 projectile_motion.py
10 | 


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/README.md:
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 1 | # Projectile Motion Physics Engine
 2 | 
 3 | This program simulates projectile motion using a small pygame window that allows you to shoot a ball around the screen.
 4 | 
 5 | You can watch my video tutorials on how to create this here: https://www.youtube.com/watch?v=_gDOz7E6HVM
 6 | 
 7 | # Requirements
 8 | - Python 3.x
 9 | - Pygame
10 | 
11 | # Run Instructions
12 | Run the file *projectile_motion.py* to start the program.
13 | 
14 | # 💻 Launch Your Software Development Career Today!  
15 | 
16 | 🎓 **No degree? No problem!** My program equips you with everything you need to break into tech and land an entry-level software development role.  
17 | 
18 | 🚀 **Why Join?**  
19 | - 💼 **$70k+ starting salary potential**  
20 | - 🕐 **Self-paced:** Complete on your own time  
21 | - 🤑 **Affordable:** Low risk compared to expensive bootcamps or degrees
22 | - 🎯 **45,000+ job openings** in the market  
23 | 
24 | 👉 **[Start your journey today!](https://techwithtim.net/dev)**  
25 | No experience needed—just your determination. Future-proof your career and unlock six-figure potential like many of our students have!  
26 | 


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/projectile_motion.py:
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  1 | import pygame
  2 | import math
  3 | 
  4 | wScreen = 1200
  5 | hScreen = 500
  6 | 
  7 | win = pygame.display.set_mode((wScreen,hScreen))
  8 | pygame.display.set_caption('Projectile Motion')
  9 | 
 10 | 
 11 | class ball(object):
 12 |     def __init__(self,x,y,radius,color):
 13 |         self.x = x
 14 |         self.y = y
 15 |         self.radius = radius
 16 |         self.color = color
 17 | 
 18 |     def draw(self, win):
 19 |         pygame.draw.circle(win, (0,0,0), (self.x,self.y), self.radius)
 20 |         pygame.draw.circle(win, self.color, (self.x,self.y), self.radius-1)
 21 | 
 22 | 
 23 |     @staticmethod
 24 |     def ballPath(startx, starty, power, ang, time):
 25 |         angle = ang
 26 |         velx = math.cos(angle) * power
 27 |         vely = math.sin(angle) * power
 28 | 
 29 |         distX = velx * time
 30 |         distY = (vely * time) + ((-4.9 * (time ** 2)) / 2)
 31 | 
 32 |         newx = round(distX + startx)
 33 |         newy = round(starty - distY)
 34 | 
 35 | 
 36 |         return (newx, newy)
 37 | 
 38 | 
 39 | def redrawWindow():
 40 |     win.fill((64,64,64))
 41 |     golfBall.draw(win)
 42 |     pygame.draw.line(win, (0,0,0),line[0], line[1])
 43 |     pygame.display.update()
 44 | 
 45 | def findAngle(pos):
 46 |     sX = golfBall.x
 47 |     sY = golfBall.y
 48 |     try:
 49 |         angle = math.atan((sY - pos[1]) / (sX - pos[0]))
 50 |     except:
 51 |         angle = math.pi / 2
 52 | 
 53 |     if pos[1] < sY and pos[0] > sX:
 54 |         angle = abs(angle)
 55 |     elif pos[1] < sY and pos[0] < sX:
 56 |         angle = math.pi - angle
 57 |     elif pos[1] > sY and pos[0] < sX:
 58 |         angle = math.pi + abs(angle)
 59 |     elif pos[1] > sY and pos[0] > sX:
 60 |         angle = (math.pi * 2) - angle
 61 | 
 62 |     return angle
 63 | 
 64 | 
 65 | golfBall = ball(300,494,5,(255,255,255))
 66 | 
 67 | run = True
 68 | time = 0
 69 | power = 0
 70 | angle = 0
 71 | shoot = False
 72 | clock = pygame.time.Clock()
 73 | while run:
 74 |     clock.tick(200)
 75 |     if shoot:
 76 |         if golfBall.y < 500 - golfBall.radius:
 77 |             time += 0.05
 78 |             po = ball.ballPath(x, y, power, angle, time)
 79 |             golfBall.x = po[0]
 80 |             golfBall.y = po[1]
 81 |         else:
 82 |             shoot = False
 83 |             time = 0
 84 |             golfBall.y = 494
 85 | 
 86 |     line = [(golfBall.x, golfBall.y), pygame.mouse.get_pos()]
 87 |     redrawWindow()
 88 | 
 89 |     for event in pygame.event.get():
 90 |         if event.type == pygame.QUIT:
 91 |             run = False
 92 | 
 93 |         if event.type == pygame.MOUSEBUTTONDOWN:
 94 |             if not shoot:
 95 |                 x = golfBall.x
 96 |                 y = golfBall.y
 97 |                 pos =pygame.mouse.get_pos()
 98 |                 shoot = True
 99 |                 power = math.sqrt((line[1][1]-line[0][1])**2 +(line[1][0]-line[0][1])**2)/8
100 |                 angle = findAngle(pos)
101 | 
102 | 
103 | 
104 | pygame.quit()
105 | quit()
106 | 
107 | 


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/requirements.txt:
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1 | pygame
2 | 


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