button.py

"""Add a start button to the game."""
import pygame.font


class Button:
    """Create the button."""

    def __init__(self, ai_game, msg):
        """Initialize button attributes."""
        self.screen = ai_game.screen
        self.screen_rect = self.screen.get_rect()

        # Set dimensions and properties of the button.
        self.width, self.height = 200, 50
        self.button_color = (0, 220, 0)
        self.text_color = (255, 255, 255)
        self.font = pygame.font.SysFont("Pixeboy", 42)

        self.rect = pygame.Rect(0, 0, self.width, self.height)
        self.rect.center = self.screen_rect.center

        self._prep_msg(msg)

    def _prep_msg(self, msg):
        """Render `msg` and center text on button."""
        self.msg_image = self.font.render(msg, True, self.text_color, self.button_color)
        self.msg_image_rect = self.msg_image.get_rect()
        self.msg_image_rect.center = self.rect.center

    def draw_button(self):
        """Draw a blank button, then draw the message."""
        self.screen.fill(self.button_color, self.rect)
        self.screen.blit(self.msg_image, self.msg_image_rect)