solitaire_03.py Full Listing

solitaire_03.py
  1"""
  2Solitaire clone.
  3"""
  4import arcade
  5
  6# Screen title and size
  7SCREEN_WIDTH = 1024
  8SCREEN_HEIGHT = 768
  9SCREEN_TITLE = "Drag and Drop Cards"
 10
 11# Constants for sizing
 12CARD_SCALE = 0.6
 13
 14# How big are the cards?
 15CARD_WIDTH = 140 * CARD_SCALE
 16CARD_HEIGHT = 190 * CARD_SCALE
 17
 18# How big is the mat we'll place the card on?
 19MAT_PERCENT_OVERSIZE = 1.25
 20MAT_HEIGHT = int(CARD_HEIGHT * MAT_PERCENT_OVERSIZE)
 21MAT_WIDTH = int(CARD_WIDTH * MAT_PERCENT_OVERSIZE)
 22
 23# How much space do we leave as a gap between the mats?
 24# Done as a percent of the mat size.
 25VERTICAL_MARGIN_PERCENT = 0.10
 26HORIZONTAL_MARGIN_PERCENT = 0.10
 27
 28# The Y of the bottom row (2 piles)
 29BOTTOM_Y = MAT_HEIGHT / 2 + MAT_HEIGHT * VERTICAL_MARGIN_PERCENT
 30
 31# The X of where to start putting things on the left side
 32START_X = MAT_WIDTH / 2 + MAT_WIDTH * HORIZONTAL_MARGIN_PERCENT
 33
 34# Card constants
 35CARD_VALUES = ["A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"]
 36CARD_SUITS = ["Clubs", "Hearts", "Spades", "Diamonds"]
 37
 38class Card(arcade.Sprite):
 39    """ Card sprite """
 40
 41    def __init__(self, suit, value, scale=1):
 42        """ Card constructor """
 43
 44        # Attributes for suit and value
 45        self.suit = suit
 46        self.value = value
 47
 48        # Image to use for the sprite when face up
 49        self.image_file_name = f":resources:images/cards/card{self.suit}{self.value}.png"
 50
 51        # Call the parent
 52        super().__init__(self.image_file_name, scale, hit_box_algorithm="None")
 53
 54class MyGame(arcade.Window):
 55    """ Main application class. """
 56
 57    def __init__(self):
 58        super().__init__(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
 59
 60        # Sprite list with all the cards, no matter what pile they are in.
 61        self.card_list = None
 62
 63        arcade.set_background_color(arcade.color.AMAZON)
 64
 65        # List of cards we are dragging with the mouse
 66        self.held_cards = None
 67
 68        # Original location of cards we are dragging with the mouse in case
 69        # they have to go back.
 70        self.held_cards_original_position = None
 71
 72    def setup(self):
 73        """ Set up the game here. Call this function to restart the game. """
 74
 75        # List of cards we are dragging with the mouse
 76        self.held_cards = []
 77
 78        # Original location of cards we are dragging with the mouse in case
 79        # they have to go back.
 80        self.held_cards_original_position = []
 81
 82        # Sprite list with all the cards, no matter what pile they are in.
 83        self.card_list = arcade.SpriteList()
 84
 85        # Create every card
 86        for card_suit in CARD_SUITS:
 87            for card_value in CARD_VALUES:
 88                card = Card(card_suit, card_value, CARD_SCALE)
 89                card.position = START_X, BOTTOM_Y
 90                self.card_list.append(card)
 91
 92    def on_draw(self):
 93        """ Render the screen. """
 94        # Clear the screen
 95        arcade.start_render()
 96
 97        # Draw the cards
 98        self.card_list.draw()
 99
100    def pull_to_top(self, card):
101        """ Pull card to top of rendering order (last to render, looks on-top) """
102        # Find the index of the card
103        index = self.card_list.index(card)
104        # Loop and pull all the other cards down towards the zero end
105        for i in range(index, len(self.card_list) - 1):
106            self.card_list[i] = self.card_list[i + 1]
107        # Put this card at the right-side/top/size of list
108        self.card_list[len(self.card_list) - 1] = card
109
110    def on_mouse_press(self, x, y, button, key_modifiers):
111        """ Called when the user presses a mouse button. """
112
113        # Get list of cards we've clicked on
114        cards = arcade.get_sprites_at_point((x, y), self.card_list)
115
116        # Have we clicked on a card?
117        if len(cards) > 0:
118
119            # Might be a stack of cards, get the top one
120            primary_card = cards[-1]
121
122            # All other cases, grab the face-up card we are clicking on
123            self.held_cards = [primary_card]
124            # Save the position
125            self.held_cards_original_position = [self.held_cards[0].position]
126            # Put on top in drawing order
127            self.pull_to_top(self.held_cards[0])
128
129    def on_mouse_release(self, x: float, y: float, button: int,
130                         modifiers: int):
131        """ Called when the user presses a mouse button. """
132
133        # If we don't have any cards, who cares
134        if len(self.held_cards) == 0:
135            return
136
137        # We are no longer holding cards
138        self.held_cards = []
139
140    def on_mouse_motion(self, x: float, y: float, dx: float, dy: float):
141        """ User moves mouse """
142
143        # If we are holding cards, move them with the mouse
144        for card in self.held_cards:
145            card.center_x += dx
146            card.center_y += dy
147
148
149def main():
150    """ Main method """
151    window = MyGame()
152    window.setup()
153    arcade.run()
154
155
156if __name__ == "__main__":
157    main()