button.py

import pygame.font


class Button:

    def __init__(self, ai_game, msg):
        """Initialize button attributes"""

        self.screen = ai_game.screen
        self.screen_rect = self.screen.get_rect()

        # Set the dimension and properties of the button

        self.width,self.height = 200,50
        self.button_color = (0,255,0)
        self.text_color= (255,255,255)
        self.font = pygame.font.SysFont(None, 48)

        # Build the button's rect object and center it

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

        #The button message needs to be prepped only once

        self._prep_msg(msg)


    def _prep_msg(self,msg):
        """Turn msg into a rendered image and center text on the 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 blank button and then draw message

        self.screen.fill(self.button_color,self.rect)
        self.screen.blit(self.msg_image,self.msg_image_rect)