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pragma robustness ^0.4.24;
contract RockPaperScissors {
// characterize constants
address public alice;
address public sway;
uint public minBet = 1 ether;
uint public maxBet = 2 ether;
// characterize factors
uint public bet;
uint public victor;
bytes32 public moveA;
bytes32 public moveB;
// constructor
constructor(address _alice, address _bob) public {
require(_alice != address(0));
require(_bob != address(0));
alice = _alice;
sway = _bob;
}
// acknowledge bet from Alice
work makeBet() public payable {
require(msg.value == minBet);
require(winner == 0);
require(bet == 0);
wager = msg.value;
}
// Alice takes her action
work makeMoveA(bytes32 _moveA) public {
require(msg.sender == alice);
require(winner == 0);
require(moveA == bytes32(0));
require(_moveA == bytes32("rock") || _moveA == bytes32("paper") || _moveA == bytes32("scissors"));
moveA = _moveA;
}
// Sway takes his action
work makeMoveB(bytes32 _moveB) public {
require(msg.sender == sway);
require(winner == 0);
require(moveB == bytes32(0));
require(_moveB == bytes32("rock") || _moveB == bytes32("paper") || _moveB == bytes32("scissors"));
moveB = _moveB;
}
// work out champ
work calculateWinner() public {
require(moveA != bytes32(0));
require(moveB != bytes32(0));
require(winner == 0);
in the event that (moveA == moveB) {
emanate GameTied(alice, bounce, moveA, moveB);
alice.transfer(bet);
bob.transfer(bet);
} else if (moveA == bytes32("rock") && moveB == bytes32("scissors")) {
emanate AliceWon(alice, bounce, moveA, moveB);
champ = 1;
alice.transfer(maxBet);
} else if (moveA == bytes32("rock") && moveB == bytes32("paper")) {
emanate BobWon(bob, alice, moveA, moveB);
champ = 2;
bob.transfer(maxBet);
} else if (moveA == bytes32("paper") && moveB == bytes32("rock")) {
emanate AliceWon(alice, bounce, moveA, moveB);
champ = 1;
alice.transfer(maxBet);
} else if (moveA == bytes32("paper") && moveB == bytes32("scissors")) {
emanate BobWon(bob, alice, moveA, moveB);
champ = 2;
bob.transfer(maxBet);
} else if (moveA == bytes32("scissors") && moveB == bytes32("rock")) {
emanate BobWon(bob, alice, moveA, moveB);
champ = 2;
bob.transfer(maxBet);
} else if (moveA == bytes32("scissors") && moveB == bytes32("paper")) {
emanate AliceWon(alice, bounce, moveA, moveB);
champ = 1;
alice.transfer(maxBet);
}
}
// occasions
occasion GameTied(address listed _winner, address recorded _loser, bytes32 _moveA, bytes32 _moveB);
occasion AliceWon(address listed _winner, address recorded _loser, bytes32 _moveA, bytes32 _moveB);
occasion BobWon(address listed _winner, address recorded _loser, bytes32 _moveA, bytes32 _moveB);
}