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ai.cpp
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ai.cpp
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#include "ai.h"
#include <QDebug>
#include <QVector>
AI::AI()
{
}
/*
* According to the current situation,calculate and search the best point
* 1-AI,2-player,0-unoccupied
*/
QString AI::action(int checkb[15][15], int depth)
{
QVector<BestPos> points;//particalpoints container
QVector<BestPos> bestpoints;//bestpoints container
int tbest;//temporary best value
int best = MIN;
int deep = depth;//search deepth
ABcuts = total = 0;//reset 0
points = Generate(checkb,deep);//get the possible points
for(int i = 0; i < points.size(); i++)
{
BestPos bp;
bp.best_x = points.at(i).best_x;
bp.best_y = points.at(i).best_y;
qDebug()<<"particalPos:"<<bp.best_x<<bp.best_y;
checkb[bp.best_x][bp.best_y] = 1;//try it
tbest = Min(checkb,deep-1,MAX,best>MIN?best:MIN);
if(tbest == best)
{
bestpoints.push_back(bp);
}
if(tbest > best)
{
best = tbest;
bestpoints.clear();
bestpoints.push_back(bp);
}
qDebug()<<"particalValue"<<tbest;
checkb[bp.best_x][bp.best_y] = 0;//renew it
}
//choose one randomly
QTime time;
time = QTime::currentTime();
qsrand(time.msec() + time.second()*1000);
int size = qrand()%bestpoints.size();
checkb[bestpoints.at(size).best_x][bestpoints.at(size).best_y] = 1;
qDebug()<<"The best choice Pos: ("<<bestpoints.at(size).best_x<<","<<bestpoints.at(size).best_y<<")";
qDebug()<<"The best choice value: <"<<best<<">";
qDebug()<<"total searching points: "<<total;
qDebug()<<"alpha-beta cutting points: "<<ABcuts;
return QString::number(bestpoints.at(size).best_x) + " " + QString::number(bestpoints.at(size).best_y);
}
/*
* search for max value
* imitate AI's action
*/
int AI::Max(int checkb[15][15], int deep, int alpha, int beta)
{
total++;//total nodes
int tbest = evaluate(checkb);
if(deep<=0 || IsWin(checkb))
return tbest;
int best = MIN;
QVector<BestPos> points = Generate(checkb,deep);
for(int k = 0; k < points.size(); k++)
{
int x = points.at(k).best_x;
int y = points.at(k).best_y;
checkb[x][y] = 1;//try it
tbest = Min(checkb,deep-1,alpha,best>beta?best:beta);
checkb[x][y] = 0;//renew it
if(tbest > best)
best = tbest;
if(tbest > alpha)//AB cutting
{
ABcuts++;
break;
}
}
return best;
}
/*
* search for min value
* imitate player's action
*/
int AI::Min(int checkb[15][15], int deep, int alpha, int beta)
{
total++;
int tbest = evaluate(checkb);
if(deep<=0 || IsWin(checkb))
return tbest;
int best = MAX;
QVector<BestPos> points = Generate(checkb,deep);
for(int k = 0; k < points.size(); k++)
{
int x = points.at(k).best_x;
int y = points.at(k).best_y;
checkb[x][y] = 2;
tbest = Max(checkb,deep-1,best<alpha?best:alpha,beta);
checkb[x][y] = 0;
if(tbest < best)
best = tbest;
if(tbest<beta)//AB cutting
{
ABcuts++;
break;
}
}
return best;
}
/*
* evaluate current situation
* add up every point's value
*/
int AI::evaluate(int checkb[15][15])
{
int value = 0;
for(int i = 0; i < 15; i++)
{
for(int j = 0; j < 15; j++)
{
if(checkb[i][j])
{
for(int k = 1; k <= 8; k++)
{
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,3,checkb)==1&&
GetLine(i,j,k,4,checkb)==1)//*1111
{
value += combofive;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,3,checkb)==1&&
GetLine(i,j,k,-1,checkb)==1)//1*111
{
value += combofive;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,-1,checkb)==1&&
GetLine(i,j,k,-2,checkb)==1)//11*11
{
value += combofive;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,3,checkb)==1&&
GetLine(i,j,k,4,checkb)==0&&GetLine(i,j,k,-1,checkb)==0)//0*1110
{
value += alivefour;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,3,checkb)==0&&
GetLine(i,j,k,-1,checkb)==1&&GetLine(i,j,k,-2,checkb)==0)//01*110
{
value += alivefour;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,3,checkb)==1&&
GetLine(i,j,k,4,checkb)==0&&(GetLine(i,j,k,-1,checkb)==2||GetLine(i,j,k,-1,checkb)==-1))//2*1110 or -1*1110
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,3,checkb)==0&&
GetLine(i,j,k,-1,checkb)==1&&(GetLine(i,j,k,-2,checkb)==2||GetLine(i,j,k,-2,checkb)==-1))//21*110 or -11*110
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,-1,checkb)==1&&
GetLine(i,j,k,-2,checkb)==1&&(GetLine(i,j,k,-3,checkb)==2||GetLine(i,j,k,-3,checkb)==-1))//211*10 or -111*10
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,-1,checkb)==1&&GetLine(i,j,k,-2,checkb)==1&&
GetLine(i,j,k,-3,checkb)==1&&(GetLine(i,j,k,-4,checkb)==2||GetLine(i,j,k,-4,checkb)==-1))//2111*0 or -1111*0
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,3,checkb)==0&&
GetLine(i,j,k,4,checkb)==1)//*1101
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,3,checkb)==1&&
GetLine(i,j,k,-1,checkb)==1)//1*101
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,-1,checkb)==1&&
GetLine(i,j,k,-2,checkb)==1)//11*01
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,2,checkb)==1&&
GetLine(i,j,k,3,checkb)==1)//1110*
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,3,checkb)==1&&
GetLine(i,j,k,4,checkb)==1)//*1011
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,3,checkb)==1&&
GetLine(i,j,k,-1,checkb)==1)//1*011
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,3,checkb)==0&&
GetLine(i,j,k,-1,checkb)==0)//0*110
{
value += alivethree;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,-1,checkb)==1&&
GetLine(i,j,k,-2,checkb)==0)//01*10
{
value += alivethree;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,3,checkb)==1&&
GetLine(i,j,k,4,checkb)==0&&GetLine(i,j,k,-1,checkb)==0)//0*1010
{
value += alivethree;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,3,checkb)==0&&
GetLine(i,j,k,-1,checkb)==1&&GetLine(i,j,k,-2,checkb)==0)//01*010
{
value += alivethree;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,3,checkb)==1&&
GetLine(i,j,k,4,checkb)==0&&GetLine(i,j,k,-1,checkb)==0)//0*0110
{
value += alivethree;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,3,checkb)==0&&
(GetLine(i,j,k,-1,checkb)==2&&GetLine(i,j,k,-1,checkb)==-1))//2*110 or -11110
{
value += rushthree;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,-1,checkb)==1&&
(GetLine(i,j,k,-2,checkb)==2&&GetLine(i,j,k,-2,checkb)==-1))//21*10 or -11110
{
value += rushthree;
continue;
}
if(GetLine(i,j,k,-1,checkb)==0&&GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==1&&
(GetLine(i,j,k,3,checkb)==2&&GetLine(i,j,k,3,checkb)==-1))//211*0 or -11110
{
value += rushthree;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,3,checkb)==1&&
(GetLine(i,j,k,4,checkb)==0||GetLine(i,j,k,-1,checkb)==0))//*101
{
value += rushthree;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,-1,checkb)==1&&
(GetLine(i,j,k,3,checkb)==0||GetLine(i,j,k,-2,checkb)==0))//1*01
{
value += rushthree;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==1&&GetLine(i,j,k,3,checkb)==1&&
(GetLine(i,j,k,4,checkb)==0||GetLine(i,j,k,-1,checkb)==0))//110*
{
value += rushthree;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,-1,checkb)==0)//0*10
{
value += alivetwo;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,2,checkb)==0&&(GetLine(i,j,k,-1,checkb)==2
||GetLine(i,j,k,-1,checkb)==-1))//2*10 or -1110
{
value += rushtwo;
continue;
}
if(GetLine(i,j,k,1,checkb)==1&&GetLine(i,j,k,-1,checkb)==0&&(GetLine(i,j,k,2,checkb)==2
||GetLine(i,j,k,2,checkb)==-1))//21*0 or -1110
{
value += rushtwo;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==1&&(GetLine(i,j,k,3,checkb)==0
||GetLine(i,j,k,-1,checkb)==0))//*01
{
value += rushtwo;
continue;
}
}
for(int k = 1; k <= 8; k++)
{
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==2&&GetLine(i,j,k,3,checkb)==2&&
GetLine(i,j,k,4,checkb)==2)//*1111
{
value -= combofive;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==2&&GetLine(i,j,k,3,checkb)==2&&
GetLine(i,j,k,-1,checkb)==2)//1*111
{
value -= combofive;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==2&&GetLine(i,j,k,-1,checkb)==2&&
GetLine(i,j,k,-2,checkb)==2)//11*11
{
value -= combofive;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==2&&GetLine(i,j,k,3,checkb)==2&&
GetLine(i,j,k,4,checkb)==0&&GetLine(i,j,k,-1,checkb)==0)//0*1110
{
value -= alivefour;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==2&&GetLine(i,j,k,3,checkb)==0&&
GetLine(i,j,k,-1,checkb)==2&&GetLine(i,j,k,-2,checkb)==0)//01*110
{
value -= alivefour;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==2&&GetLine(i,j,k,3,checkb)==2&&
GetLine(i,j,k,4,checkb)==0&&(GetLine(i,j,k,-1,checkb)==1||GetLine(i,j,k,-1,checkb)==-1))//2*1110 or -1*1110
{
value -= rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==2&&GetLine(i,j,k,3,checkb)==0&&
GetLine(i,j,k,-1,checkb)==2&&(GetLine(i,j,k,-2,checkb)==1||GetLine(i,j,k,-2,checkb)==-1))//21*110 or -11*110
{
value -= rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,-1,checkb)==2&&
GetLine(i,j,k,-2,checkb)==2&&(GetLine(i,j,k,-3,checkb)==1||GetLine(i,j,k,-3,checkb)==-1))//211*10 or -111*10
{
value -= rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,-1,checkb)==2&&GetLine(i,j,k,-2,checkb)==2&&
GetLine(i,j,k,-3,checkb)==2&&(GetLine(i,j,k,-4,checkb)==1||GetLine(i,j,k,-4,checkb)==-1))//2111*0 or -1111*0
{
value -= rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==2&&GetLine(i,j,k,3,checkb)==0&&
GetLine(i,j,k,4,checkb)==2)//*1101
{
value -= rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,3,checkb)==2&&
GetLine(i,j,k,-1,checkb)==2)//1*101
{
value -= rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==2&&GetLine(i,j,k,-1,checkb)==2&&
GetLine(i,j,k,-2,checkb)==2)//11*01
{
value -= rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==2&&GetLine(i,j,k,2,checkb)==2&&
GetLine(i,j,k,3,checkb)==2)//1110*
{
value -= rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,3,checkb)==2&&
GetLine(i,j,k,4,checkb)==2)//*1011
{
value -= rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==2&&GetLine(i,j,k,3,checkb)==2&&
GetLine(i,j,k,-1,checkb)==2)//1*011
{
value -= rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==2&&GetLine(i,j,k,3,checkb)==0&&
GetLine(i,j,k,-1,checkb)==0)//0*110
{
value -= alivethree;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,-1,checkb)==2&&
GetLine(i,j,k,-2,checkb)==0)//01*10
{
value -= alivethree;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==2&&GetLine(i,j,k,3,checkb)==0&&
(GetLine(i,j,k,-1,checkb)==1&&GetLine(i,j,k,-1,checkb)==-1))//2*110 or -11110
{
value -= rushthree;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,-1,checkb)==2&&
(GetLine(i,j,k,-2,checkb)==1&&GetLine(i,j,k,-2,checkb)==-1))//21*10 or -11110
{
value -= rushthree;
continue;
}
if(GetLine(i,j,k,-1,checkb)==0&&GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==2&&
(GetLine(i,j,k,3,checkb)==1&&GetLine(i,j,k,3,checkb)==-1))//211*0 or -11110
{
value -= rushthree;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,3,checkb)==2&&
(GetLine(i,j,k,4,checkb)==0||GetLine(i,j,k,-1,checkb)==0))//*101
{
value -= rushthree;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==2&&GetLine(i,j,k,-1,checkb)==2&&
(GetLine(i,j,k,3,checkb)==0||GetLine(i,j,k,-2,checkb)==0))//1*01
{
value -= rushthree;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==2&&GetLine(i,j,k,3,checkb)==2&&
(GetLine(i,j,k,4,checkb)==0||GetLine(i,j,k,-1,checkb)==0))//110*
{
value -= rushthree;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,-1,checkb)==0)//0*10
{
value -= alivetwo;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,2,checkb)==0&&(GetLine(i,j,k,-1,checkb)==1
||GetLine(i,j,k,-1,checkb)==-1))//2*10 or -1110
{
value -= rushtwo;
continue;
}
if(GetLine(i,j,k,1,checkb)==2&&GetLine(i,j,k,-1,checkb)==0&&(GetLine(i,j,k,2,checkb)==1
||GetLine(i,j,k,2,checkb)==-1))//21*0 or -1110
{
value -= rushtwo;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==2&&(GetLine(i,j,k,3,checkb)==0
||GetLine(i,j,k,-1,checkb)==0))//*01
{
value -= rushtwo;
continue;
}
}
}
}
}
return value;
}
/*
* 2d array to 1d array
*/
int AI::GetLine(int i, int j, int dir, int relapos, int checkb[15][15])
{
switch(dir)
{
case 1://up
i = i - relapos;
break;
case 2://down
i = i +relapos;
break;
case 3://right
j = j - relapos;
break;
case 4://left
j = j + relapos;
break;
case 5://leftupbevel
i = i - relapos;
j = j - relapos;
break;
case 6://rightupbevel
i = i - relapos;
j = j + relapos;
break;
case 7://leftdownbevel
i = i + relapos;
j = j - relapos;
break;
case 8://rightdownbevel
i = i + relapos;
j = j + relapos;
break;
default:
break;
}
if(i<0||j<0||i>14||j>14)
return -1;//-1 presents out of boundary
return checkb[i][j];
}
/*
* get the possible points
*/
QVector<BestPos> AI::Generate(int checkb[15][15], int deep)
{
QVector<BestPos> points;
QVector<BestPos> tpoints;
QVector<BestPos> five,fourthree,four,twofour,twothree,three,two;
for(int i = 0; i < 15; i++)
{
for(int j = 0; j < 15; j++)
{//search unoccupied position
if(checkb[i][j])
continue;
BestPos bp;
bp.best_x = i;
bp.best_y = j;
//must have neighbor
if(HasNeighbor(checkb,i,j,1))
{
int AIscore = PointValue(checkb,i,j,1);//evaluate current point's value of AI
int Playerscore = PointValue(checkb,i,j,2);//the same
if(AIscore >= combofive)
{
five.push_front(bp);
return five;
}
else if(Playerscore >= combofive)
{
five.push_back(bp);
}
else if(AIscore >= 2*alivefour)
{
twofour.push_front(bp);
}
else if(Playerscore >= 2*alivefour)
{
twofour.push_back(bp);
}
else if(AIscore >= alivethree+rushfour)
{
fourthree.push_front(bp);
}
else if(Playerscore >= alivethree+rushfour)
{
fourthree.push_back(bp);
}
else if(AIscore >= 2*alivethree)
{
twothree.push_front(bp);
}
else if(Playerscore >= 2*alivethree)
{
twothree.push_back(bp);
}
else if(AIscore >= alivefour)
{
four.push_front(bp);
}
else if(Playerscore >= alivefour)
{
four.push_back(bp);
}
else if(AIscore >= alivethree)
{
three.push_front(bp);
}
else if(Playerscore >= alivethree)
{
three.push_back(bp);
}
else if(AIscore >= alivetwo)
{
two.push_front(bp);
}
else if(Playerscore >= alivetwo)
{
two.push_back(bp);
}
else
{
points.push_back(bp);
}
}
else if(deep>=2 && HasNeighbor(checkb,i,j,2))
{
tpoints.push_back(bp);
}
}
}
if(!five.isEmpty())
{
BestPos bp = five.at(0);
five.clear();
five.push_back(bp);
return five;
}
if(!twofour.isEmpty())
return twofour;
if(!fourthree.isEmpty())
return fourthree;
if(!twothree.isEmpty())
return twothree;
if(!four.isEmpty())
return four;
return three + two + points + tpoints;
}
/*
* get a point's value of AI
* 1-AI,2-player,*-next step
*/
int AI::PointValue(int checkb[15][15], int i, int j, int side)
{
int value = 0;
for(int k = 1; k <= 8; k++)
{
if(GetLine(i,j,k,1,checkb)==side&&GetLine(i,j,k,2,checkb)==side&&GetLine(i,j,k,3,checkb)==side&&
GetLine(i,j,k,4,checkb)==side)//*1111
{
value += combofive;
continue;
}
if(GetLine(i,j,k,1,checkb)==side&&GetLine(i,j,k,2,checkb)==side&&GetLine(i,j,k,3,checkb)==side&&
GetLine(i,j,k,-1,checkb)==side)//1*111
{
value += combofive;
continue;
}
if(GetLine(i,j,k,1,checkb)==side&&GetLine(i,j,k,2,checkb)==side&&GetLine(i,j,k,-1,checkb)==side&&
GetLine(i,j,k,-2,checkb)==side)//11*11
{
value += combofive;
continue;
}
if(GetLine(i,j,k,1,checkb)==side&&GetLine(i,j,k,2,checkb)==side&&GetLine(i,j,k,3,checkb)==side&&
GetLine(i,j,k,4,checkb)==0&&GetLine(i,j,k,-1,checkb)==0)//0*1110
{
value += alivefour;
continue;
}
if(GetLine(i,j,k,1,checkb)==side&&GetLine(i,j,k,2,checkb)==side&&GetLine(i,j,k,-1,checkb)==side&&
GetLine(i,j,k,3,checkb)==0&&GetLine(i,j,k,-2,checkb)==0)//01*110
{
value += alivefour;
continue;
}
if(GetLine(i,j,k,1,checkb)==side&&GetLine(i,j,k,2,checkb)==side&&GetLine(i,j,k,3,checkb)==side&&
(GetLine(i,j,k,-1,checkb)==0||GetLine(i,j,k,4,checkb)==0))//0*111 or *1110
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==side&&GetLine(i,j,k,2,checkb)==side&&GetLine(i,j,k,-1,checkb)==side&&
(GetLine(i,j,k,3,checkb)==0||GetLine(i,j,k,-2,checkb)==0))//01*11 or 1*110
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==side&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,-1,checkb)==side&&
GetLine(i,j,k,4,checkb)==side)//*1011
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==side&&GetLine(i,j,k,3,checkb)==side&&
GetLine(i,j,k,-1,checkb)==side)//1*011
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==side&&GetLine(i,j,k,3,checkb)==side&&
GetLine(i,j,k,-1,checkb)==side)//1*011
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==side&&GetLine(i,j,k,3,checkb)==side&&
GetLine(i,j,k,-1,checkb)==side)//*0111
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==side&&GetLine(i,j,k,-1,checkb)==side&&
GetLine(i,j,k,-2,checkb)==side)//10*11
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==side&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,3,checkb)==side&&
GetLine(i,j,k,-1,checkb)==side)//101*1
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==side&&GetLine(i,j,k,2,checkb)==side&&GetLine(i,j,k,3,checkb)==0&&
GetLine(i,j,k,4,checkb)==side)//1011*
{
value += rushfour;
continue;
}
if(GetLine(i,j,k,1,checkb)==side&&GetLine(i,j,k,-1,checkb)==side&&GetLine(i,j,k,2,checkb)==0&&
GetLine(i,j,k,-2,checkb)==0)//01*10
{
value += alivethree;
continue;
}
if(GetLine(i,j,k,1,checkb)==side&&GetLine(i,j,k,2,checkb)==side&&GetLine(i,j,k,3,checkb)==0&&
GetLine(i,j,k,-1,checkb)==0)//0*110
{
value += alivethree;
continue;
}
if(GetLine(i,j,k,1,checkb)==side&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,-1,checkb)==0&&
GetLine(i,j,k,-2,checkb)==side&&GetLine(i,j,k,-3,checkb)==0)//01*010
{
value += alivethree;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==side&&GetLine(i,j,k,3,checkb)==side&&
GetLine(i,j,k,4,checkb)==0&&GetLine(i,j,k,-1,checkb)==0)//0*0110
{
value += alivethree;
continue;
}
if(GetLine(i,j,k,1,checkb)==0&&GetLine(i,j,k,2,checkb)==side&&GetLine(i,j,k,3,checkb)==0&&
GetLine(i,j,k,-1,checkb)==side&&GetLine(i,j,k,-2,checkb)==0)//01*010
{
value += alivethree;
continue;
}
if(GetLine(i,j,k,1,checkb)==side&&GetLine(i,j,k,-1,checkb)==side&&(GetLine(i,j,k,2,checkb)==0||
GetLine(i,j,k,-2,checkb)==0))//01*1 or 1*10
{
value += rushthree;
continue;
}
if(GetLine(i,j,k,1,checkb)==side&&GetLine(i,j,k,2,checkb)==side&&(GetLine(i,j,k,3,checkb)==0||
GetLine(i,j,k,-1,checkb)==0))//0*11 or *110
{
value += rushthree;
continue;
}
if(GetLine(i,j,k,1,checkb)==side&&GetLine(i,j,k,2,checkb)==0&&GetLine(i,j,k,-1,checkb)==0)//0*10
{
value += alivetwo;
continue;
}
if(GetLine(i,j,k,1,checkb)==side&&(GetLine(i,j,k,2,checkb)==0||GetLine(i,j,k,-1,checkb)==0))//0*1 or *10
{
value += rushtwo;
continue;
}
}
return value;
}
/*
* check winning from four direction
*/
bool AI::IsWin(int checkb[15][15])
{
for(int i = 0; i < 15; i++)
{
for(int j = 0; j < 15; j++)
{
int side = checkb[i][j];
if(side == 0)
continue;
for(int k = 0; k < 5; k++)
{
//check from vertical
if((i-k>=0 && i+4-k<15) &&
(checkb[i-k][j] == side &&
checkb[i+1-k][j] == side &&
checkb[i+2-k][j] == side &&
checkb[i+3-k][j] == side &&
checkb[i+4-k][j] == side))
{
return true;
}
//check from horizontal
if((j-k>=0 && j+4-k<15) &&
(checkb[i][j-k] == side &&
checkb[i][j+1-k] == side &&
checkb[i][j+2-k] == side &&
checkb[i][j+3-k] == side &&
checkb[i][j+4-k] == side))
{
return true;
}
//check from leftbevel
if((i-k>=0 && j-k>=0 && i+4-k<15 && j+4-k<15) &&
(checkb[i-k][j-k] == side &&
checkb[i+1-k][j+1-k] == side &&
checkb[i+2-k][j+2-k] == side &&
checkb[i+3-k][j+3-k] == side &&
checkb[i+4-k][j+4-k] == side))
{
return true;
}
//check from rightbevel
if((i-k>=0 && j+k<15 && i+4-k<15 && j-4+k>=0) &&
(checkb[i-k][j+k] == side &&
checkb[i+1-k][j-1+k] == side &&
checkb[i+2-k][j-2+k] == side &&
checkb[i+3-k][j-3+k] == side &&
checkb[i+4-k][j-4+k] == side))
{
return true;
}
}
}
}
return false;
}
/*
* to check whether a point has its neighbors
*/
bool AI::HasNeighbor(int checkb[15][15], int i, int j, int d)
{
if(checkb[i-d][j] && i-d>=0 && i-d<15)
return true;
if(checkb[i+d][j] && i+d>=0 && i+d<15)
return true;
if(checkb[i][j-d] && j-d>=0 && j-d<15)
return true;
if(checkb[i][j+d] && j+d>=0 && j+d<15)
return true;
if(checkb[i-d][j-d] && i-d>=0 && i-d<15 && j-d>=0 && j-d<15)
return true;
if(checkb[i-d][j+d] && i-d>=0 && i-d<15 && j+d>=0 && j+d<15)
return true;
if(checkb[i+d][j-d] && i+d>=0 && i+d<15 && j-d>=0 && j-d<15)
return true;
if(checkb[i+d][j+d] && i+d>=0 && i+d<15 && j+d>=0 && j+d<15)
return true;
return false;
}
//unfinished
/*
* create the 64-random number
*/
__int64 AI::rand64()
{
return rand()^((__int64)rand()<<15)^((__int64)rand()<<30)^
((__int64)rand()<<45)^((__int64)rand()<<60);
}
void AI::InitZobrist()
{
for(int i = 0; i < 2; i++)
{
for(int j = 0; j < 225; j++)
{
zobrist[i][j] = rand64();
}
}
}
__int64 AI::ZobristKey()
{
int zobristkey = 0;
for(int i = 0; i < 2; i++)
{
for(int j = 0; j < 225; j++)
{
zobristkey = zobristkey^zobrist[i][j];
}
}
return zobristkey;
}
int AI::ProbeHash(int depth, int alpha, int beta)
{
HASHE *phashe = &hash_table[ZobristKey() % (TableSize-1)];
if (phashe->key == ZobristKey())
{
if (phashe->depth >= depth)
{
if (phashe->flags == hashfEXACT)
{
return phashe->value;
}
if ((phashe->flags == hashfALPHA) && (phashe->value <= alpha))
{
return alpha;
}
if ((phashe->flags == hashfBETA) && (phashe->value >= beta))
{
return beta;
}
}
//RememberBestMove();
}
return -666666;
}
void AI::RecordHash(int depth, int value, int hashf,BestPos bp)
{
HASHE *phashe = &hash_table[ZobristKey() % (TableSize-1)];
if (phashe->flags != Empty && phashe->depth > depth)
{
return;
}
phashe->key = ZobristKey();
phashe->bp = bp;
phashe->value = value;
phashe->flags = hashf;
phashe->depth = depth;
}
void AI::RememberBestMove()
{
}