143 lines
4.6 KiB
Python
143 lines
4.6 KiB
Python
"""
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This program shows how to have a pause screen without resetting the game.
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Make a separate class for each view (screen) in your game.
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The class will inherit from arcade.View. The structure will
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look like an arcade.Window as each View will need to have its own draw,
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update and window event methods. To switch a View, simply create a view
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with `view = MyView()` and then use the "self.window.set_view(view)" method.
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If Python and Arcade are installed, this example can be run from the command line with:
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python -m arcade.examples.view_pause_screen
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"""
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import arcade
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import random
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import os
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file_path = os.path.dirname(os.path.abspath(__file__))
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os.chdir(file_path)
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WIDTH = 800
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HEIGHT = 600
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SPRITE_SCALING = 0.5
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class MenuView(arcade.View):
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def on_show(self):
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arcade.set_background_color(arcade.color.WHITE)
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def on_draw(self):
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arcade.start_render()
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arcade.draw_text("Menu Screen", WIDTH/2, HEIGHT/2,
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arcade.color.BLACK, font_size=50, anchor_x="center")
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arcade.draw_text("Click to advance.", WIDTH/2, HEIGHT/2-75,
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arcade.color.GRAY, font_size=20, anchor_x="center")
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def on_mouse_press(self, x, y, button, modifiers):
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game = GameView()
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self.window.show_view(game)
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class GameView(arcade.View):
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def __init__(self):
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super().__init__()
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self.player_sprite = arcade.Sprite("images/character.png", SPRITE_SCALING)
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self.player_sprite.center_x = 50
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self.player_sprite.center_y = 50
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self.player_sprite.velocity = [3, 3]
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def on_show(self):
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arcade.set_background_color(arcade.color.AMAZON)
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def on_draw(self):
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arcade.start_render()
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# Draw all the sprites.
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self.player_sprite.draw()
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# Show tip to pause screen
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arcade.draw_text("Press Esc. to pause",
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WIDTH/2,
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HEIGHT-100,
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arcade.color.BLACK,
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font_size=20,
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anchor_x="center")
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def update(self, delta_time):
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# Call update on all sprites
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self.player_sprite.update()
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# Bounce off the edges
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if self.player_sprite.left < 0 or self.player_sprite.right > WIDTH:
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self.player_sprite.change_x *= -1
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if self.player_sprite.bottom < 0 or self.player_sprite.top > HEIGHT:
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self.player_sprite.change_y *= -1
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def on_key_press(self, key, modifiers):
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if key == arcade.key.ESCAPE:
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# pass self, the current view, to preserve this view's state
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pause = PauseView(self)
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self.window.show_view(pause)
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class PauseView(arcade.View):
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def __init__(self, game_view):
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super().__init__()
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self.game_view = game_view
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def on_show(self):
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arcade.set_background_color(arcade.color.ORANGE)
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def on_draw(self):
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arcade.start_render()
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# Draw player, for effect, on pause screen.
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# The previous View (GameView) was passed in
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# and saved in self.game_view.
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player_sprite = self.game_view.player_sprite
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player_sprite.draw()
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# draw an orange filter over him
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arcade.draw_lrtb_rectangle_filled(left=player_sprite.left,
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right=player_sprite.right,
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top=player_sprite.top,
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bottom=player_sprite.bottom,
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color=(*arcade.color.ORANGE, 200))
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arcade.draw_text("PAUSED", WIDTH/2, HEIGHT/2+50,
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arcade.color.BLACK, font_size=50, anchor_x="center")
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# Show tip to return or reset
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arcade.draw_text("Press Esc. to return",
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WIDTH/2,
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HEIGHT/2,
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arcade.color.BLACK,
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font_size=20,
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anchor_x="center")
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arcade.draw_text("Press Enter to reset",
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WIDTH/2,
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HEIGHT/2-30,
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arcade.color.BLACK,
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font_size=20,
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anchor_x="center")
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def on_key_press(self, key, modifiers):
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if key == arcade.key.ESCAPE: # resume game
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self.window.show_view(self.game_view)
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elif key == arcade.key.ENTER: # reset game
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game = GameView()
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self.window.show_view(game)
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def main():
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window = arcade.Window(WIDTH, HEIGHT, "Instruction and Game Over Views Example")
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menu = MenuView()
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window.show_view(menu)
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arcade.run()
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if __name__ == "__main__":
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main()
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