Casual mahjong eliminationGame

Casual mahjong elimination game -------Ver 1.0--------

(1) randomly select 40 pieces from a set of mahjong tiles, and then copy the same piece, a total of 80 pieces
(2) there are 80 CARDS in each game in the normal mode and the challenge mode. The normal mode is clear card display, while the challenge mode is reverse card display
(3) the normal mode and the challenge mode both have a 3-second preparation time before the official start of the game, and the game lasts for 60 seconds, at which time the settlement will be made or the challenge settlement will be completed within the specified time
(4) in normal mode, the user clicks a card, and the card is highlighted around it. After clicking the same card, the card is paired together and eliminated, otherwise the highlighting is canceled
(5) in the challenge mode, the user clicks a card, which is flipped to the front and displayed with highlights. Then another card is clicked. If the card clicked is the same, the matching will be eliminated