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ArrayOutOfBoundsIndexException

[9 Replies]
- 26-Mar-2012 02:23 PM
- Forum: Core Library Questions
Hi,
I am creating an RTS game involving a server and a client. I have recently been getting an ArrayOutOfBoundsIndexException error that I cant seem to solve. Any help would be appreciated.

this is the server
2. import processing.net.*; //Imports processing.net.* Library -- for server
4. Server gameServer; //Server -- This program is the server
5. Client gameClient; //Client -- The partner program is the Client
6. String input; //Stores data recieved from Client
7. int data[]; //Separates data stored in input
9. void ServerSetup(){
10. if(NumberOfUnits > 0){ //If you have any units
11. //Send the array indexes and Team Coordinates to the client
12. gameServer.write(0 + " " + xCoordinate + " " + yCoordinate + "\n");
13. }
15. //Receive data from client
16. gameClient = gameServer.available();
18. //If the Client is sending information
19. if (gameClient != null){
21. //Put the input into a string
22. input = gameClient.readString();
24. //Separate the elements of the string
25. if(input.indexOf("\n") != -1){
26. input = input.substring(0, input.indexOf("\n")); // Only up to the newline
27. }
29. //Split values into an array
30. data = int(split(input, ' '));
32. //Use the values to generate the positions and images of the opposing team
33. println(data[0]); //The ArrayOutOfBoundsIndexException occurs between 0 and 5 minutes randomly on any of these println lines
34. println(data[1]);
35. println(data[2]);
36. }
37. }
this is the client
2. import processing.net.*; //Imports processing.net.* Library -- for server
5. Client gameClient; //Client -- The partner program is the Client
6. String input; //Stores data recieved from Client
7. int data[]; //Separates data stored in input
9. void ClientSetup() {
11. if(NumberOfUnits > 0){
12. //Send the array indexes and Team Coordinates to the client
13. gameClient.write(0 + " " + xCoordinate + " " + yCoordinate + "\n");
14. }
16. //If the Server is sending information
17. if (gameClient.available() > 0) {
19. //Put the input into a string
20. input = gameClient.readString();
22. //Separate the elements of the string
23. if(input.indexOf("\n") != -1){
24. input = input.substring(0, input.indexOf("\n"));
25. }
27. //Split values into an array
28. data = int(split(input, ' '));
30. //Use the values to generate the positions and images of the opposing team
31. println(data[0]);
32. println(data[1]);
33. println(data[2]);
34. }
35. }

Servers and Clients

[2 Replies]
- 02-Feb-2012 06:59 PM
- Forum: Core Library Questions
I am trying to create an Real-Time-Strategy game with processing and to do this i am trying to program a server and client. Both my server and the client that I have created keeps getting the error: "StringOutOfBoundsException: String index out of range: -1".

Here is the relevant code:

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

This is the code for the server

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
1. import processing.net.*; //Imports processing.net.* Library -- for server
  
  
  
  Server gameServer; //Server -- This program is the server
  
  Client gameClient; //Client
  
  String input; //Stores data recieved from Client
  
  int[] data = new int[3]; //Separates data stored in input
  
  void setup(){
  
  gameServer = new Server(this, 12345); //Starts server
  
  }
  
  void ServerSetup(){
  
  //This loops and sends coordinate information for each of your teams units to the Client
  
  for(int i = 0; i < NumberOfUnits; i++){
  
  
  
  //Send Team Coordinates -- i = array index, TeamOne[i] = and array of a class called Units
  
  //UnitXCoordinate and UnitYCoordinate = the unit's X and Y coordinates
  
  gameServer.write(i + " " + TeamOne[i].UnitXCoordinate + " " + TeamOne[i].UnitYCoordinate + "\n");
  
  }
  
  
  
  //Receive data from client
  
  gameClient = gameServer.available();
  
  if (gameClient != null) {
  
  
  
  //input is a string -- stores the information recieved from client
  
  input = gameClient.readString();
  
  //This is where the error in the program is, from what I understand, input.substring separates the value in input into //an array of strings
  
  input = input.substring(0, input.indexOf("\n")); //Only up to the newline
  
  
  
  //data is an integer array
  
  data = int(split(input, ' ')); // Split array index and X and Y values into an array
  
  //TeamTwoXY[ ][ ] is an array used for displaying the X and Y coordinates
  
  TeamTwoXY[data[0]][0] = data[1]; //data[0] is the array index sent from the client
  
  TeamTwoXY[data[0]][1] = data[2]; //data[1] is the X coordinate, data[2] is the Y coordinate
  
  
  
  //Function for creating the image "picture"
  
  image(picture,TeamTwoXY[data[0]][0],TeamTwoXY[data[0]][1],40,80); // Unit
  
  }
  
  }
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

This code exists in separate program -- this is the client for the server

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
1. import processing.net.*;
  
  Client gameClient;
  
  String input;
  
  int[] data = new int[3];
  
  void setup(){
  
  gameClient = new Client(this, "000.0.0.0",12345); //The number 000.0.0.0 is where the server's IP address goes
  
  }
  
  void ClientSetup(){
  
  for(int i = 0; i < NumberOfUnits; i++){
  
  gameClient.write(i + " " + TeamOne[i].UnitXCoordinate + " " + TeamOne[i].UnitYCoordinate + "\n");
  
  }
  
  // Receive data from server
  
  if (gameClient.available() > 0) {
  
  
  
  input = gameClient.readString();
  
  
  
  //This is the line where the error occurs
  
  input = input.substring(0, input.indexOf("\n")); // Only up to the newline
  
  data = int(split(input, ' ')); // Split values into an array
  
  
  
  TeamTwoXY[data[0]][0] = data[1];
  
  TeamTwoXY[data[0]][1] = data[2];
  
  image(picture,TeamTwoXY[data[0]][0],TeamTwoXY[data[0]][1],40,80); // Unit
  
  }
  
  }
If anyone has a solution I would be very grateful.

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