import pygame as pg
import pygame_gui
from constants import Config

class Game():
    def __init__(self, screen, clock, manager):
        self.screen = screen
        self.clock = clock
        self.manager = manager
        self.fps_label = pygame_gui.elements.UILabel(
        relative_rect=pg.Rect((10, 10), (120, 40)),
        text="FPS: 0",
        manager=self.manager
        )

    def run(self):
        self.running = True
        while self.running:
            self.clock.tick(Config.FPS)
            self.update()
            self.draw()
        return self.running

    def update(self):
        fps = str(int(self.clock.get_fps()))
        self.fps_label.set_text('fps: ' + fps)

        for event in pg.event.get():
            if event.type == pg.QUIT:
                self.running = False

            self.manager.process_events(event)

        time_delta = self.clock.tick(Config.FPS)/1000.0
        self.manager.update(time_delta)

    def draw(self):
        self.screen.fill(self.manager.get_theme().get_colour('normal_bg'))
        self.manager.draw_ui(self.screen)
        pg.display.update()