Nomoku.cpp

#include "pisqpipe.h"
#include <windows.h>

const char *infotext = "name=\"Nomuku\", author=\"Nathaniel Lin & Howard Liu\", version=\"0.1 pre alpha\", country=\"China\", www=\"http://blog.nathaniel-lin.me";

#define MAX_BOARD 100
int board[MAX_BOARD][MAX_BOARD];
static unsigned seed;


void brain_init()
{
	if (width<5 || height<5){
		pipeOut("ERROR size of the board");
		return;
	}
	if (width>MAX_BOARD || height>MAX_BOARD){
		pipeOut("ERROR Maximal board size is %d", MAX_BOARD);
		return;
	}
	seed = start_time;
	pipeOut("OK");
}

void brain_restart()
{
	int x, y;
	for (x = 0; x<width; x++){
		for (y = 0; y<height; y++){
			board[x][y] = 0;
		}
	}
	pipeOut("OK");
}

int isFree(int x, int y)
{
	return x >= 0 && y >= 0 && x<width && y<height && board[x][y] == 0;
}

void brain_my(int x, int y)
{
	if (isFree(x, y)){
		board[x][y] = 1;
	}
	else{
		pipeOut("ERROR my move [%d,%d]", x, y);
	}
}

void brain_opponents(int x, int y)
{
	if (isFree(x, y)){
		board[x][y] = 2;
	}
	else{
		pipeOut("ERROR opponents's move [%d,%d]", x, y);
	}
}

void brain_block(int x, int y)
{
	if (isFree(x, y)){
		board[x][y] = 3;
	}
	else{
		pipeOut("ERROR winning move [%d,%d]", x, y);
	}
}

int brain_takeback(int x, int y)
{
	if (x >= 0 && y >= 0 && x<width && y<height && board[x][y] != 0){
		board[x][y] = 0;
		return 0;
	}
	return 2;
}

unsigned rnd(unsigned n)
{
	seed = seed * 367413989 + 174680251;
	return (unsigned)(UInt32x32To64(n, seed) >> 32);
}

void brain_turn()
{
	int x, y, i;

	i = -1;
	do{
		x = rnd(width);
		y = rnd(height);
		i++;
		if (terminateAI) return;
	} while (!isFree(x, y));

	if (i>1) pipeOut("DEBUG %d coordinates didn't hit an empty field", i);
	do_mymove(x, y);
}

void brain_end()
{
}

#ifdef DEBUG_EVAL
#include <windows.h>

void brain_eval(int x, int y)
{
	HDC dc;
	HWND wnd;
	RECT rc;
	char c;
	wnd = GetForegroundWindow();
	dc = GetDC(wnd);
	GetClientRect(wnd, &rc);
	c = (char)(board[x][y] + '0');
	TextOut(dc, rc.right - 15, 3, &c, 1);
	ReleaseDC(wnd, dc);
}

#endif