Update Day-22

Author: abhijeetpandit7

Day-22-PongGame/README.md

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+# Pong-Game
+
+### An implementation of PongGame.  
+
+<img src= 'https://user-images.githubusercontent.com/65078610/105690319-d8c0b700-5f21-11eb-8401-df2c88c7348d.gif' width="500">

Day-22-PongGame/ball.py

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+from turtle import Turtle
+import time
+
+class Ball(Turtle):
+
+    def __init__(self):
+        super().__init__()
+        self.shape('circle')
+        self.penup()
+        self.color('azure')
+        self.move_x = 10
+        self.move_y = 10
+        self.pace = 0.1
+
+    def move(self):
+        new_x = self.xcor() + self.move_x
+        new_y = self.ycor() + self.move_y
+        self.goto(new_x, new_y)
+
+    def wall_bounce(self):
+        self.move_y *= -1
+
+    def paddle_bounce(self):
+        self.move_x *= -1
+        if self.pace > 0.02:
+            self.pace -= 0.01
+
+    def home(self):
+        time.sleep(1)
+        self.move_x *= -1
+        self.goto(0,0)
+        self.pace = 0.1

Day-22-PongGame/main.py

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+from turtle import Screen
+from scoreboard import Scoreboard
+from paddle import Paddle
+from ball import Ball
+import time
+
+screen = Screen()
+screen.title("Pong Game")
+screen.setup(width=800, height=600)
+screen.bgcolor('darkslategray')
+screen.tracer(0)
+
+lhs_scoreboard = Scoreboard(-50)
+rhs_scoreboard = Scoreboard(50)
+rhs_paddle = Paddle((350,0))
+lhs_paddle = Paddle((-350,0))
+ball = Ball()
+screen.tracer(0)
+
+screen.listen()
+screen.onkey(lhs_paddle.up, 'w')
+screen.onkey(lhs_paddle.down, 's')
+screen.onkey(rhs_paddle.up, 'Up')
+screen.onkey(rhs_paddle.down, 'Down')
+
+game_on = True
+while game_on:
+    time.sleep(ball.pace)
+    ball.move()
+    screen.update()
+
+    # Detect collision with top & bottom wall
+    if (ball.ycor() > 280 or ball.ycor() < -280):
+        ball.wall_bounce()
+
+    # Detect collision with paddle
+    if (ball.distance(lhs_paddle) < 50 or ball.distance(rhs_paddle) < 50) and (ball.xcor() == 330 or ball.xcor() == -330):
+        ball.paddle_bounce()
+    
+    # Detect collision with left & right wall
+    if ball.xcor() > 330:
+        lhs_scoreboard.increment()
+        ball.home()
+    elif ball.xcor() < -330:
+        rhs_scoreboard.increment()
+        ball.home()
+
+screen.exitonclick()

Day-22-PongGame/paddle.py

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+from turtle import Turtle
+BOUNDARY_LIMIT = 220
+
+class Paddle(Turtle):
+
+    def __init__(self,position):
+        super().__init__()
+        self.shape('square')
+        self.penup()
+        self.color('aquamarine')
+        self.shapesize(stretch_wid=5, stretch_len=1)
+        self.goto(position)
+    
+    def up(self):
+        if self.ycor() <= BOUNDARY_LIMIT:
+            new_y = self.ycor() + 20
+            self.goto(self.xcor(), new_y)
+
+    def down(self):
+        if self.ycor() >= -BOUNDARY_LIMIT:
+            new_y = self.ycor() - 20
+            self.goto(self.xcor(), new_y)

Day-22-PongGame/scoreboard.py

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+from turtle import Turtle
+ALIGNMENT = 'center'
+FONT = ("Courier", 24, "normal")
+Y = 250
+
+class Scoreboard(Turtle):
+
+    def __init__(self,x):
+        super().__init__()
+        self.center_line()
+        self.score = 0
+        self.penup()
+        self.hideturtle()
+        self.color('cadetblue')
+        self.goto(x,Y)
+        self.write(f'{self.score}', align=ALIGNMENT, font=FONT)
+
+    def increment(self):
+        self.score += 1
+        self.clear()
+        self.write(f'{self.score}', align=ALIGNMENT, font=FONT)
+
+    def center_line(self):
+        line = Turtle()
+        line.hideturtle()
+        line.speed('fastest')
+        line.color('aquamarine')
+        line.pensize(3)
+        line.setheading(270)
+        for y in range(300,-300,-20):
+            line.penup()
+            line.goto(0,y)
+            line.pendown()
+            line.forward(10)