165 lines
6.3 KiB
Python
165 lines
6.3 KiB
Python
from typing import Optional
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import pygame
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from level.Level import Level
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from level.LevelManager import LevelManager
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from level.selection.LevelScreenManager import LevelScreenManager
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from level.selection.LevelSelectionScreenManager import LevelSelectionScreenManager
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from level.selection.MainMenuScreenManager import MainMenuScreenManager
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from level.selection.ScreenManager import ScreenManager
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from physics import ConstantsParser
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from physics.SpriteManager import SpriteManager
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from physics.TickData import TickData
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from sprite.PositionScale import PositionScale
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from sprite.SpritesheetManager import SpritesheetManager
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from ui_elements.ClickEvent import ClickEvent
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from ui_elements.KeyManager import KeyManager
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BACKGROUND_IMAGES_UNSCALED = {
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'tutorial': pygame.image.load('data/sprites/tutorial_bg.png'),
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'castle': pygame.image.load('data/sprites/castle_bg.png'),
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'cave': pygame.image.load('data/sprites/cave_bg.png'),
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}
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BACKGROUND_IMAGES_SCALED = {
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'tutorial': pygame.transform.scale(BACKGROUND_IMAGES_UNSCALED['tutorial'], (1, 1)),
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'castle': pygame.transform.scale(BACKGROUND_IMAGES_UNSCALED['castle'], (1, 1)),
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'cave': pygame.transform.scale(BACKGROUND_IMAGES_UNSCALED['cave'], (1, 1)),
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}
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def apply_frame_rate(number: float, frame_rate: float = 30):
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"""
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this function calculates a factor that will be multiplied with the
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physics of the game to provide a constant speed
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:param frame_rate: the frame rate of the game
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:param number: The number to scale by the factor
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:return: The scaled number
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"""
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return number / (frame_rate / 30)
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class MainLoop:
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def __init__(self):
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self.GAME_STATE_MENU = 'main_menu'
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self.GAME_STATE_LEVEL_SELECTION = 'level_selection'
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self.GAME_STATE_LEVEL = 'level'
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self.screen_transform: PositionScale = PositionScale((0, 0), (1.5, 1.5))
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self.window_size: tuple[float, float] = (1, 1)
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pygame.init()
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pygame.display.set_caption("PM GAME")
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self.update_position_scale(self.screen_transform)
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self.screen = self.screen
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self.clock = pygame.time.Clock()
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self.frame_rate = 30
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self.spritesheet_manager = SpritesheetManager("data/sprites", "data/sprites/sprites.json")
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self.sprite_manager = SpriteManager()
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self.key_manager = KeyManager()
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self.parsed_levels_manager = LevelManager('data/levels')
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self.parsed_levels_manager.load_from_config('data/levels/levels.json')
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self.screen_manager: Optional[ScreenManager] = None
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self.game_state = self.GAME_STATE_MENU
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self.set_game_state(self.GAME_STATE_MENU)
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self.level: Optional[Level] = None
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def update_position_scale(self, position_scale: PositionScale):
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self.screen_transform = position_scale
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self.window_size = (
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self.screen_transform.scale[0] * ConstantsParser.CONFIG.block_size[0] *
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ConstantsParser.CONFIG.level_size[0],
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self.screen_transform.scale[1] * ConstantsParser.CONFIG.block_size[1] *
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ConstantsParser.CONFIG.level_size[1]
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)
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self.screen = pygame.display.set_mode((self.window_size[0], self.window_size[1]))
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for key in BACKGROUND_IMAGES_UNSCALED:
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BACKGROUND_IMAGES_SCALED[key] = pygame.transform.scale(
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BACKGROUND_IMAGES_UNSCALED[key], self.window_size
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)
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def select_level(self, level: Level):
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print('Loading level', level.name)
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self.level = level
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self.set_game_state(self.GAME_STATE_LEVEL)
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def select_level_selection(self, theme: str = 'tutorial'):
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self.set_game_state(self.GAME_STATE_LEVEL_SELECTION)
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if self.screen_manager is not None and isinstance(self.screen_manager, LevelSelectionScreenManager):
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self.screen_manager.select_theme(theme)
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def select_main_menu(self):
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self.set_game_state(self.GAME_STATE_MENU)
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def set_game_state(self, game_state: str):
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self.game_state = game_state
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if self.screen_manager is not None:
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self.screen_manager.destroy()
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if self.game_state == self.GAME_STATE_MENU:
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self.screen_manager = MainMenuScreenManager(
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self.sprite_manager, self.spritesheet_manager, self
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)
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elif self.game_state == self.GAME_STATE_LEVEL:
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self.screen_manager = LevelScreenManager(
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self.sprite_manager, self.spritesheet_manager, self, self.level
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)
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elif self.game_state == self.GAME_STATE_LEVEL_SELECTION:
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self.screen_manager = LevelSelectionScreenManager(
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self.sprite_manager, self.spritesheet_manager, self, self.parsed_levels_manager
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)
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else:
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print('Invalid game state', self.game_state)
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if self.screen_manager is not None:
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self.screen_manager.initialize()
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def main_loop(self):
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while True:
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self.clock.tick(self.frame_rate)
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pygame_events: list[pygame.event.Event] = pygame.event.get()
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self.key_manager.update_key_events(pygame_events)
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click_events: list[ClickEvent] = ClickEvent.create_events(pygame_events, self.screen_transform)
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for event in click_events:
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for layer in self.sprite_manager.layers:
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for sprite in self.sprite_manager.layers[layer]:
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if sprite.get_bounding_box().contains_point(event.world_position):
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sprite.click(event)
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for event in pygame_events:
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if event.type == pygame.QUIT:
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pygame.quit()
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exit()
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self.screen.fill((0, 0, 0))
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tick_data = TickData(apply_frame_rate(1, self.frame_rate),
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pygame_events,
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self.key_manager,
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click_events,
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self.screen_transform)
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self.screen_manager.tick(tick_data)
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self.sprite_manager.tick(tick_data)
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if self.level is not None and self.game_state == self.GAME_STATE_LEVEL:
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self.screen.blit(BACKGROUND_IMAGES_SCALED[self.level.theme], (0, 0))
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self.sprite_manager.draw(self.screen, self.screen_transform)
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pygame.display.update()
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main_loop: MainLoop = MainLoop()
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main_loop.main_loop()
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