scratch programming simple crab game

Develop the game so that at the beginning the crabs are lined up on the first square at Start, and the board shows the Roll dice button and the two dice. Develop the part of the game so that when a crab is clicked by a player, it moves one square on the game board. Develop the dice so that each can display the colours of each of the crabs. Develop the part of the game so that when the roll dice button is clicked, the dice display one colour, chosen by the program at random. Each of the dice may display a different colour, or both may display the same colour. Develop the game so that crabs can be moved on the board during a turn only if their colour is displayed on the dice. If the dice both show the same colour, the game should allow that crab to be moved twice. If a crab is already at the finish line, it cannot be moved. Develop the game so that the roll dice button is disabled until all valid crab moves have been made. Develop the game so that when a crab reaches the finish it displays a message that says which position it has come (e.g. “I’m first”).