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AIMove.m
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AIMove.m
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% Connect 4 Project Notre Dame Spring 2019
% Brian Donahoe, Jack Masciopinto, Thomas Fisher, Kenan Lumantas, Jason Brown
% EG 10112 Final Project
% Prof. McWilliams
% Updated: 4/10/2019
function move=AIMove(difficulty, board, player, aggregateMoves, moveNum)
winMove=immediateWin(board, player);
val = 0;
if(player==1)
opponent=2;
else
opponent=1;
end
opponentWin=immediateWin(board, opponent);
if(difficulty==1)
if(winMove~=-1)
move=winMove;
return;
elseif(opponentWin~=-1)
move=opponentWin;
else % maybe modify to look ahead 1 move and not move under win conditions
while(true)
move=randi(7);
if(canPlayHere(move, board)~=-1)
break;
end
end
end
end
if(difficulty==2)
if(winMove~=-1)
move=winMove;
return;
elseif(opponentWin~=-1)
move=opponentWin;
return;
else
for i=1:20
move=aggregateMoves(moveNum, randi(size(aggregateMoves,2)));
if(canPlayHere(move, board)~=-1)
boardPoss = board;
boardPoss(canPlayHere(move,board),move) = 2;
if immediateWin(boardPoss,opponent)==-1
break;
end
end
end
end
end
if(difficulty == 3)
[move , val] = minimax(board, 5, -Inf, Inf, true, player);
end
end