移动平台#
sprite_moving_platforms.py#
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 | """ Sprite with Moving Platforms Artwork from https://kenney.nl If Python and Arcade are installed, this example can be run from the command line with: python -m arcade.examples.sprite_moving_platforms """ import arcade from pyglet.math import Vec2 SPRITE_SCALING = 0.5 SCREEN_WIDTH = 1000 SCREEN_HEIGHT = 600 SCREEN_TITLE = "Sprite with Moving Platforms Example" SPRITE_PIXEL_SIZE = 128 GRID_PIXEL_SIZE = (SPRITE_PIXEL_SIZE * SPRITE_SCALING) # How many pixels to keep as a minimum margin between the character # and the edge of the screen. VIEWPORT_MARGIN = SPRITE_PIXEL_SIZE * SPRITE_SCALING RIGHT_MARGIN = 4 * SPRITE_PIXEL_SIZE * SPRITE_SCALING # Physics MOVEMENT_SPEED = 10 * SPRITE_SCALING JUMP_SPEED = 28 * SPRITE_SCALING GRAVITY = .9 * SPRITE_SCALING # How fast the camera pans to the player. 1.0 is instant. CAMERA_SPEED = 0.1 class MyGame(arcade.Window): """ Main application class. """ def __init__(self, width, height, title): """ Initializer """ # Call the parent init super().__init__(width, height, title) # Sprite lists # Drawing non-moving walls separate from moving walls improves performance. self.static_wall_list = None self.moving_wall_list = None self.player_list = None # Set up the player self.player_sprite = None self.physics_engine = None self.game_over = False # Create the cameras. One for the GUI, one for the sprites. # We scroll the 'sprite world' but not the GUI. self.camera_sprites = arcade.Camera(SCREEN_WIDTH, SCREEN_HEIGHT) self.camera_gui = arcade.Camera(SCREEN_WIDTH, SCREEN_HEIGHT) self.left_down = False self.right_down = False def setup(self): """ Set up the game and initialize the variables. """ # Sprite lists self.static_wall_list = arcade.SpriteList() self.moving_wall_list = arcade.SpriteList() self.player_list = arcade.SpriteList() # Set up the player self.player_sprite = arcade.Sprite(":resources:images/animated_characters/female_person/" "femalePerson_idle.png", SPRITE_SCALING) self.player_sprite.center_x = 2 * GRID_PIXEL_SIZE self.player_sprite.center_y = 3 * GRID_PIXEL_SIZE self.player_list.append(self.player_sprite) # Create floor for i in range(30): wall = arcade.Sprite(":resources:images/tiles/grassMid.png", SPRITE_SCALING) wall.bottom = 0 wall.center_x = i * GRID_PIXEL_SIZE self.static_wall_list.append(wall) # Create platform side to side wall = arcade.Sprite(":resources:images/tiles/grassMid.png", SPRITE_SCALING) wall.center_y = 3 * GRID_PIXEL_SIZE wall.center_x = 3 * GRID_PIXEL_SIZE wall.boundary_left = 2 * GRID_PIXEL_SIZE wall.boundary_right = 5 * GRID_PIXEL_SIZE wall.change_x = 2 * SPRITE_SCALING self.moving_wall_list.append(wall) # Create platform side to side wall = arcade.Sprite(":resources:images/tiles/grassMid.png", SPRITE_SCALING) wall.center_y = 3 * GRID_PIXEL_SIZE wall.center_x = 7 * GRID_PIXEL_SIZE wall.boundary_left = 5 * GRID_PIXEL_SIZE wall.boundary_right = 9 * GRID_PIXEL_SIZE wall.change_x = -2 * SPRITE_SCALING self.moving_wall_list.append(wall) # Create platform moving up and down wall = arcade.Sprite(":resources:images/tiles/grassMid.png", SPRITE_SCALING) wall.center_y = 5 * GRID_PIXEL_SIZE wall.center_x = 5 * GRID_PIXEL_SIZE wall.boundary_top = 8 * GRID_PIXEL_SIZE wall.boundary_bottom = 4 * GRID_PIXEL_SIZE wall.change_y = 2 * SPRITE_SCALING self.moving_wall_list.append(wall) # Create platform moving diagonally wall = arcade.Sprite(":resources:images/tiles/grassMid.png", SPRITE_SCALING) wall.center_y = 5 * GRID_PIXEL_SIZE wall.center_x = 8 * GRID_PIXEL_SIZE wall.boundary_left = 7 * GRID_PIXEL_SIZE wall.boundary_right = 9 * GRID_PIXEL_SIZE wall.boundary_top = 8 * GRID_PIXEL_SIZE wall.boundary_bottom = 4 * GRID_PIXEL_SIZE wall.change_x = 2 * SPRITE_SCALING wall.change_y = 2 * SPRITE_SCALING self.moving_wall_list.append(wall) # Create our physics engine self.physics_engine = \ arcade.PhysicsEnginePlatformer(self.player_sprite, [self.static_wall_list, self.moving_wall_list], gravity_constant=GRAVITY) # Set the background color arcade.set_background_color(arcade.color.AMAZON) self.game_over = False def on_draw(self): """ Render the screen. """ # This command has to happen before we start drawing self.clear() # Select the camera we'll use to draw all our sprites self.camera_sprites.use() # Draw the sprites. self.static_wall_list.draw() self.moving_wall_list.draw() self.player_list.draw() self.camera_gui.use() # Put the text on the screen. distance = self.player_sprite.right output = f"Distance: {distance}" arcade.draw_text(output, 10, 20, arcade.color.WHITE, 14) def set_x_speed(self): if self.left_down and not self.right_down: self.player_sprite.change_x = -MOVEMENT_SPEED elif self.right_down and not self.left_down: self.player_sprite.change_x = MOVEMENT_SPEED else: self.player_sprite.change_x = 0 def on_key_press(self, key, modifiers): """ Called whenever the mouse moves. """ if key == arcade.key.UP: if self.physics_engine.can_jump(): self.player_sprite.change_y = JUMP_SPEED elif key == arcade.key.LEFT: self.left_down = True self.set_x_speed() elif key == arcade.key.RIGHT: self.right_down = True self.set_x_speed() def on_key_release(self, key, modifiers): """ Called when the user presses a mouse button. """ if key == arcade.key.LEFT: self.left_down = False self.set_x_speed() elif key == arcade.key.RIGHT: self.right_down = False self.set_x_speed() def on_update(self, delta_time): """ Movement and game logic """ # Call update on all sprites self.physics_engine.update() # Scroll the screen to the player self.scroll_to_player() def scroll_to_player(self): """ Scroll the window to the player. if CAMERA_SPEED is 1, the camera will immediately move to the desired position. Anything between 0 and 1 will have the camera move to the location with a smoother pan. """ position = Vec2(self.player_sprite.center_x - self.width / 2, self.player_sprite.center_y - self.height / 2) self.camera_sprites.move_to(position, CAMERA_SPEED) def main(): """ Main function """ window = MyGame(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE) window.setup() arcade.run() if __name__ == "__main__": main() |