seppedl
ecbc857d80
- ball - bricks - paddle Update documentation and readme. [fix] Game over: update player score.
55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
from random import randint
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from screen import Screen, WHITE
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from paddle import Paddle
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BALL_SPEED = 3
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class Ball:
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def __init__(self, screen: Screen, paddle: Paddle, radius: int, color: int = WHITE, brick_padding: int = 0, speed: int = BALL_SPEED):
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self.screen_width = screen.width
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self.screen_height = screen.height
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self.radius = radius
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self.color = color
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self.speed = speed
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self.x_speed = self.speed if randint(0, 1) == 0 else -self.speed
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self.y_speed = -self.speed
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self.brick_padding = brick_padding
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self.reset_pos(paddle)
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def reset_pos(self, paddle: Paddle):
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"""Reset ball position to the center of the paddle."""
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self.x = self.screen_width // 2
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self.y = self.screen_height // 2 - self.radius - 2
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self.x_speed = self.speed if randint(0, 1) == 0 else -self.speed
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self.y_speed = -self.speed
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def update_pos(self):
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"""Update ball position."""
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self.x += self.x_speed
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self.y += self.y_speed
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# Bounce off left or right screen edge
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if self.x < 0:
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self.x = 0
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self.x_speed = -self.x_speed
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elif self.x > self.screen_width - self.radius:
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self.x = self.screen_width - self.radius
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self.x_speed = -self.x_speed
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# Bounce off top screen edge
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if self.y < self.brick_padding + self.radius:
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self.y = self.brick_padding + self.radius
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self.y_speed = -self.y_speed
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# Drop through bottom screen edge & return True to indicate we lose a life
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if self.y > self.screen_height:
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self.y = self.screen_height
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self.y_speed = -self.y_speed
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return True
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def draw(self, screen: Screen):
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"""Draw ball."""
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screen.fbuf.ellipse(self.x, self.y, self.radius, self.radius, self.color, True)
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