PracticalPython-PyGame/main.py at main · practical-python-org/PracticalPython-PyGame · GitHub

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importpygameaspg
importpygame_gui

fromcommonimportCOLORS, HEIGHT, WIDTH, FPS


classRunGame:
def__init__(self):
self.clock=pg.time.Clock()
self.screen_size= (WIDTH, HEIGHT)
self.buttons=list()
self.init_ui()
self.game_loop()


definit_ui(self):
pg.init()
pg.display.set_caption('Quick Start')
self.window_surface=pg.display.set_mode(self.screen_size)
self.background=pg.Surface(self.screen_size)
self.background.fill(COLORS["black"])

self.manager=pygame_gui.UIManager(self.screen_size)

self.set_buttons()


defset_buttons(self):
defoffset_button(top_left):
padding=80
top_left[1] +=padding
returntop_left

btn_width, btn_height=100, 50
top_left= [WIDTH//2-btn_width//2, btn_height]
dimensions= (btn_width, btn_height)

self.button=pg.Rect(top_left, dimensions)
self.btn_names= ['START', 'SETTINGS', 'OTHER']
forbtn_nameinself.btn_names:
btn=pygame_gui.elements.UIButton(relative_rect=self.button,
text=btn_name,
manager=self.manager)
self.buttons.append(btn)
self.button=pg.Rect(offset_button(top_left), dimensions)


defget_events(self):
"""
 Returns necessary events for application. Packed in a dictionary.
 """
events=pg.event.get()
mouse_press=pg.mouse.get_pressed()
keys=pg.key.get_pressed()
mouse_pos=pg.mouse.get_pos()
raw_dt=self.clock.get_time()
dt=raw_dt*FPS

return {
"events": events,
"mouse press": mouse_press,
"keys": keys,
"mouse pos": mouse_pos,
"raw dt": raw_dt,
"dt": dt,
 }


defgame_loop(self):

is_running=True

whileis_running:

#time_delta = clock.tick(FPS) / 1000.0

self.clock.tick(FPS)

events=self.get_events()

time_delta=events["dt"]

foreventinevents["events"]:
ifevent.type==pg.QUIT:
is_running=False

ifevent.type==pygame_gui.UI_BUTTON_PRESSED:
forbtninself.buttons:
ifevent.ui_element==btn:
print('Hello World!')

self.manager.process_events(event)

self.manager.update(time_delta)

self.window_surface.blit(self.background, (0, 0))
self.manager.draw_ui(self.window_surface)

pg.display.update()


RunGame()
# Close pygame
pg.quit()