private static void WsServer_NewMessageReceived(WebSocketSession session, string requestJson)
{
Console.WriteLine("NewMessageReceived: " + requestJson);
// convert JSON request string from client to Request_Payload object
RequestPayload request = new RequestPayload();
request = JsonConvert.DeserializeObject <RequestPayload>(requestJson);
// process Request_Payload object in Game class and return Response_Payload object
ResponsePayload response = new ResponsePayload();
response = Game.HandleRequest(request);
// convert Response_Payload object to JSON response string and send to client
string responseJson = JsonConvert.SerializeObject(response);
session.Send(responseJson);
Console.WriteLine("NewMessageSent: " + responseJson);
}
public static ResponsePayload HandleRequest(RequestPayload request)
{
ResponsePayload response = new ResponsePayload();
response.id = request.id;
response.body = new ResponsePayload.Body();
// initialize request
if (request.msg == "INITIALIZE")
{
validStartNodes.Clear();
lines.Clear();
currentPlayerIsOne = true;
gameOver = false;
startNode.x = -1;
response.msg = "INITIALIZE";
response.body.heading = "Player 1";
response.body.message = "Awaiting Player 1's Move";
}
// node click request
if (request.msg == "NODE_CLICKED")
{
// after game is over, additional node clicks do not affect the display
if (gameOver == true)
{
response.msg = "INVALID_START_NODE";
response.body.heading = "Game Over";
response.body.message = currentPlayer(currentPlayerIsOne) + " Wins!";
}
// first move
else if (validStartNodes.Count == 0)
{
// start node
if (startNode.x == -1)
{
startNode.x = request.body.x;
startNode.y = request.body.y;
response.msg = "VALID_START_NODE";
response.body.heading = currentPlayer(currentPlayerIsOne);
response.body.message = "Select a second node to complete the line";
}
// end node
else
{
Point endNode = new Point(request.body.x, request.body.y);
bool octilinear = GameRules.Isoclines(startNode, endNode);
// end node valid
if (octilinear)
{
Point firstStartNode = new Point(startNode.x, startNode.y);
Line newLine = new Line(firstStartNode, endNode);
lines.Add(newLine);
validStartNodes.Add(firstStartNode);
validStartNodes.Add(endNode);
currentPlayerIsOne = !currentPlayerIsOne;
response.body.newLine = new ResponsePayload.Body.NewLine();
response.body.newLine.start = new ResponsePayload.Body.NewLine.Start();
response.body.newLine.end = new ResponsePayload.Body.NewLine.End();
response.msg = "VALID_END_NODE";
response.body.newLine.start.x = startNode.x;
response.body.newLine.start.y = startNode.y;
response.body.newLine.end.x = endNode.x;
response.body.newLine.end.y = endNode.y;
response.body.heading = currentPlayer(currentPlayerIsOne);
response.body.message = "Awaiting " + currentPlayer(currentPlayerIsOne) + " 's Move";
startNode.x = -1;
}
// end node invalid
else
{
response.msg = "INVALID_END_NODE";
response.body.heading = currentPlayer(currentPlayerIsOne);
response.body.message = "Invalid move!";
startNode.x = -1;
}
}
}
// all subsequent moves
else
{
// start node
if (startNode.x == -1)
{
startNode.x = request.body.x;
startNode.y = request.body.y;
// start node valid
if ((startNode.x == validStartNodes[0].x && startNode.y == validStartNodes[0].y) || (startNode.x == validStartNodes[1].x && startNode.y == validStartNodes[1].y))
{
response.msg = "VALID_START_NODE";
response.body.heading = currentPlayer(currentPlayerIsOne);
response.body.message = "Select a second node to complete the line";
}
// start node invalid
else
{
response.msg = "INVALID_START_NODE";
response.body.heading = currentPlayer(currentPlayerIsOne);
response.body.message = "Not a valid starting position";
startNode.x = -1;
}
}
// end node
else
{
Point endNode = new Point(request.body.x, request.body.y);
Line tryLine = new Line(startNode, endNode);
bool octilinear = GameRules.Isoclines(startNode, endNode);
bool noInvalidIntersect = GameRules.NoInvalidIntersect(tryLine, lines);
// end node valid
if (octilinear && noInvalidIntersect)
{
Point currentStartNode = new Point(startNode.x, startNode.y);
Line newLine = new Line(currentStartNode, endNode);
lines.Add(newLine);
for (int i = 1; i > -1; i--)
{
if (validStartNodes[i].x == currentStartNode.x && validStartNodes[i].y == currentStartNode.y)
{
validStartNodes.RemoveAt(i);
}
}
validStartNodes.Add(endNode);
currentPlayerIsOne = !currentPlayerIsOne;
response.body.newLine = new ResponsePayload.Body.NewLine();
response.body.newLine.start = new ResponsePayload.Body.NewLine.Start();
response.body.newLine.end = new ResponsePayload.Body.NewLine.End();
// check if board still has valid moves
bool boardComplete = GameRules.BoardComplete(board, lines, validStartNodes);
// game continues if board still has valid moves
if (!boardComplete)
{
response.msg = "VALID_END_NODE";
response.body.newLine.start.x = startNode.x;
response.body.newLine.start.y = startNode.y;
response.body.newLine.end.x = endNode.x;
response.body.newLine.end.y = endNode.y;
response.body.heading = currentPlayer(currentPlayerIsOne);
response.body.message = "Awaiting " + currentPlayer(currentPlayerIsOne) + " 's Move";
startNode.x = -1;
}
// game over if board no longer has valid moves
else
{
gameOver = true;
response.msg = "GAME_OVER";
response.body.newLine.start.x = startNode.x;
response.body.newLine.start.y = startNode.y;
response.body.newLine.end.x = endNode.x;
response.body.newLine.end.y = endNode.y;
response.body.heading = "Game Over";
response.body.message = currentPlayer(currentPlayerIsOne) + " Wins!";
}
}
// end node invalid
else
{
response.msg = "INVALID_END_NODE";
response.body.heading = currentPlayer(currentPlayerIsOne);
response.body.message = "Invalid move!";
startNode.x = -1;
}
}
}
}
return(response);
}