Keeping an int value the same
Hey,
I am fairly new to java, and I take it at school. I am working on an AI for a tictactoe board. My problem is that I need to somehow initalize an integer based on certain conditions, and then I need to keep that integer the same throughout the game. The integer is named "me" its in the code posted below.
Thanks in advance!
class Kuivilaextends Player
{
public Kuivila(String name)
{
super(name);//call superclass constructor
}
publicint getMove(int[] board,int whoami)
{
int s;
int whoareyou;
if (whoami==1)
whoareyou=2;
//if (whoami==2)
else
whoareyou=1;
finalint oCorner = 0;
finalint oEdge = 1;
finalint oCenter = 2;
int me==99;
if (whoami==2)
return Defence(board,whoami,whoareyou);
/// otherwise
if (me!=oCorner && me!=oEdge && me!=oCenter)
{if (board[0]==whoareyou || board[2]==whoareyou || board[6]==whoareyou || board[8]==whoareyou)
me = oCorner;
if (board[1]==whoareyou || board[3]==whoareyou || board[5]==whoareyou || board[7]==whoareyou)
me = oEdge;
else
me = oCenter;
}
/// then
if (whoami==1)
return Offence(board,whoami,whoareyou, oCorner, oEdge, oCenter, me);
return 0;
///End Basic Maneuvers//////////////////////////
}
///Defence//////////////////////////////////////
publicint Defence(int[] board,int whoami,int whoareyou)
{
/// More Code Here
}
publicint Offence(int[] board,int whoami,int whoareyou,int oCorner,int oEdge,int oCenter,int me)
{
//int m1=oCorner;
if (board[6]==OPEN)
return 6;
/// If PLAYER2 Goes Corner ///
if (me==oCorner)
{
/// More Code Here
}
/// If PLAYER2 Goes Edge ///
if (me==oEdge && board[4]==OPEN)
{
/// More Code Here
}
if (me==oEdge)
{
/// More Code Here
}
}
}
[4472 byte] By [
Parke-a] at [2007-11-26 13:19:41]
I guess you want something like this in C++,
public int Offence(int[] board, int whoami, int whoareyou,int oCorner,int oEdge,int oCenter,int me = 2)
I can tell you you need to overload the mothod,
Your actual method:
public int Offence(int[] board, int whoami, int whoareyou,int oCorner,int oEdge,int oCenter,int me)
Your other method:
public int Offence(int[] board, int whoami, int whoareyou,int oCorner,int oEdge,int oCenter) {
return Offence(board, whoami, whoareyou,oCorner,oEdge,oCenter,2);
}
Please let me know If this is not what you wanted.
Oops!make 'me' a static variable
What I'm trying to get is:
I want the code to check the first move of the opponent. THis is done through 'me' . 'me' starts at 99, just as a random number. The first time the class is invoked it will go to
if (me!=oCorner && me!=oEdge && me!=oCenter)
{ if (board[0]==whoareyou || board[2]==whoareyou || board[6]==whoareyou || board[8]==whoareyou)
me = oCorner;
if (board[1]==whoareyou || board[3]==whoareyou || board[5]==whoareyou || board[7]==whoareyou)
me = oEdge;
else
me = oCenter;
}
and change 'me' to either 0,1 or 2. The problem is, when the class is called on again it redefines 'me' as 99. I need a way to keep it at 0,1 or 2 once it has been changed from 99.
Keep the variable static,
static {
public int me = Something.someRandomFunction();
}
The above should be at the class scope.
The static blocks gets executed only once. :-)
sorry, but im new at java and im not sure what a class scope is could you please explain?
> sorry, but im new at java and im not sure what a
> class scope is could you please explain?
Scoping in java means boundaries... like this:
public class MyClass{ // <<-- start of class scope
public static void main(String args[]){ // <<-- start of Main() method scope
for(int i=0; i<5; i++){ // <<-- start of for loop scope
// do something here...
}// end of for loop scope
} // end of main method scope
} // end of class scope
Ok i did the following, but it says its an illegal start of expression when I compile?
class Kuivila extends Player
{
static {
public int me=99;
}
public Kuivila(String name)
{
super(name); //call superclass constructor
}
public int getMove(int[] board, int whoami)
{
int s;
int whoareyou;
if (whoami==1)
whoareyou=2;
//if (whoami==2)
else......blah blah blah
http://java.sun.com/docs/books/tutorial/java/index.html
John60-Thanks for the guide, but I have no idea where to look for an answer in it.
you should start on the tutorial first.your error might be a missing '{', '}' but study the tutorial first.
ill check the tutorial, but just to let you know, the error is on line 4 and its mad about me using 'public'
> static {
>public int me=99;
> }
There's a syntax error in the above code.
public class Xxxx {
// You can use public or private here
private int i;
public int p;
public static int s;
static {
// You can't use public or private here,
}
public void Mmmm() {
// you can't use public or private here either.
}
}
Message was edited by:
John60
> your error might be a missing '{', '}'
The error is that he's trying do declare an attribute in the static initializer block. A non-static one with that, too.
@ OP: instead of that static block, put in there:
static private int me = 99;
static private int me = 99; worked.Thanks everyone for your help!-Parker
