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minimax_fixed_only5.py
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minimax_fixed_only5.py
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import time
import sys
def factorial(n): #計算搜索量
if n==1 or n==0:
return 1
return factorial(n-1)*n
def printBoard(board):
for row in board:
print("\t".join(row))
print()
def setSpeed():
print("plz enter speed of AI.(1~100)")
while True:
a=input()
try:
a=int(a)
except ValueError:
print("not num!")
continue
if a>100:
print("too BIG!!!")
continue
elif a<1:
print("too SMALL!!!")
continue
return a
def setSize():
print("plz enter the size of board.(n in size(nxn))(allowed size=5 to 20)")
while True:
a=input()
try:
a=int(a)
except ValueError:
print("not num!")
continue
if a>20:
print("too BIG!!!")
continue
elif a<5:
print("too SMALL!!!")
continue
return a
def clear():
for i in range(100):
print()
def player():
print("plz enter ur pos.")
while True:
a=input()
if a.find(" ")==-1 or len(a) > 20:
print("wrong!!")
continue
try:
x,y = [int(i)-1 for i in a.split()]
#print(x,y)
except ValueError:
print("not num!")
continue
#x,y=====0~size-1
if x<0 or y<0 or x>size-1 or y>size-1:
print("UR WEIRD NUM NOT ALLOWED!!!")
continue
#print(122)
if not checkNoPiece(y,x):
print("There is already a piece.")
continue
break
board[y][x]="O"
def checkNoPiece(y,x):
return board[y][x]=="."
def checkBoardFull(board):
isFull = True
for row in board:
for piece in row:
if piece==".":
isFull=False
return isFull
def DeepCheck(checkDepth,onlyCheck):
#check if full:
if checkBoardFull(board):
gameover("tie")
#no longer continue
positionsss=dict()
depth=0
newBoard=[[i for i in row] for row in board]
positionsss=AllCheck("AI",depth,newBoard,checkDepth,onlyCheck,0,False)
return positionsss
def AllCheck(who,depth,newBoard,checkDepth,onlyCheck,alpha,checkAplhaBeta):
#print(depth,who)
#printBoard(newBoard)
cut=False
beta="no"
positions=dict()
for y in range(size):
for x in range(size):
if newBoard[y][x]==".":
score=check(x,y,positions,who,depth,checkDepth,newBoard,onlyCheck,beta,beta!="no")
positions[score]=(y,x)
#print("*"+str(depth)+"*")
if who=="AI":
beta=max(positions.keys())
elif who=="playerAI":
beta=min(positions.keys())
if checkAplhaBeta:
if who=="AI" and beta>alpha and checkAplhaBeta:
cut=True
#print("cut",depth)
break
elif who=="playerAI" and beta<alpha and checkAplhaBeta:
cut=True
#print("cut",depth)
break
else:
pass
#print("no cut")
if cut:
break
if depth==0:
print(positions)
return positions
else:
#print(positions)
if positions!=dict():
if who=="playerAI":
#print(min(positions.keys()))
return min(positions.keys())
if who=="AI":
#print(max(positions.keys()))
return max(positions.keys())
print("what!?",depth)
return 0
def check(x,y,positions,who,depth,checkDepth,newBoard,onlyCheck,beta,checkAplhaBeta):
end=False
#試著下一顆棋
aWholeNewBoard=[[i for i in row]for row in newBoard]
if not onlyCheck:#要再改,怪怪的
if who=="playerAI":
aWholeNewBoard[y][x]="O"
elif who=="AI":
aWholeNewBoard[y][x]="X"
#if not onlyCheck:
#printBoard(aWholeNewBoard)
pos=0
pos,end1=vertical(aWholeNewBoard,pos,who,depth,onlyCheck)
pos,end2=horizontal(aWholeNewBoard,pos,who,depth,onlyCheck)
pos,end3=slideUP(aWholeNewBoard,pos,who,depth,onlyCheck)
pos,end4=slideDOWN(aWholeNewBoard,pos,who,depth,onlyCheck)
if end1 or end2 or end3 or end4:
end=True
if who=="playerAI":
#newBoard[y][x]="."#還原棋盤
if end or checkBoardFull(aWholeNewBoard) or depth+1>=checkDepth:
#print("small checking ends",pos)
return pos
else:
return AllCheck("AI",depth+1,aWholeNewBoard,checkDepth,onlyCheck,beta,checkAplhaBeta)
elif who=="AI":
if end or checkBoardFull(aWholeNewBoard) or depth+1>=checkDepth:
#print("small checking ends",pos)
return pos
else:
return AllCheck("playerAI",depth+1,aWholeNewBoard,checkDepth,onlyCheck,beta,checkAplhaBeta)
def vertical(b,pos,who,depth,onlyCheck):
for x in range(size):
line = [b[y][x] for y in range(size)]
piecePos=[(y,x) for y in range(size)]
try:
line = "".join(line)
except:
print("sdszdsd")
#print(line)
pos,end=analyze(line,b,piecePos,pos,who,depth,onlyCheck)
return pos,end
def horizontal(b,pos,who,depth,onlyCheck):
for y in range(size):
line = [b[y][x] for x in range(size)]
piecePos=[(y,x) for x in range(size)]
try:
line = "".join(line)
except:
print("sdszdsd")
#print(line)
pos,end=analyze(line,b,piecePos,pos,who,depth,onlyCheck)
return pos,end
def slideUP(b,pos,who,depth,onlyCheck):
for k in range(0+4,(size*2-1)-4):
line = [b[y][x] for x in range(size) for y in range(size) if x+y==k]
piecePos=[(y,x) for x in range(size) for y in range(size) if x+y==k]
try:
line = "".join(line)
except:
print("sdszdsd")
#print(line)
pos,end=analyze(line,b,piecePos,pos,who,depth,onlyCheck)
return pos,end
def slideDOWN(b,pos,who,depth,onlyCheck):
for k in range((-(size-1))+4,(size)-4):
line = [b[y][x] for x in range(size) for y in range(size) if x-y==k]
piecePos=[(y,x) for x in range(size) for y in range(size) if x-y==k]
try:
line = "".join(line)
except:
print("sdszdsd")
#print(line)
pos,end=analyze(line,b,piecePos,pos,who,depth,onlyCheck)
return pos,end
def analyze(line,b,piecePos,pos,who,depth,onlyCheck):
#playerAI = O AI = X
s,e="X","O"
how=(1/20)**depth
checkend=False
if e*3 in line:#剛剛下的是自己的棋,此處已經檢查過了
if depth==0 and onlyCheck:
gameover("win")
pos-=1000000000000 * how
#print("too bad")
checkend=True
if e*2 in line:#need improving
start=line.find(e*2)-1
end=start+3
if start>=0:
startPos=piecePos[start]
startPiece=b[startPos[0]][startPos[1]]
else:
startPiece="N"
if end<=len(line)-1:
endPos=piecePos[end]
endPiece=b[endPos[0]][endPos[1]]
else:
endPiece="N"
if startPiece==".":
pos-=100000000 * how
elif endPiece==".":
pos-=100000000 * how
if e*1 in line:
start=line.find(e*1)-1
end=start+2
if start>=0:
startPos=piecePos[start]
startPiece=b[startPos[0]][startPos[1]]
else:
startPiece="N"
if end<=len(line)-1:
endPos=piecePos[end]
endPiece=b[endPos[0]][endPos[1]]
else:
endPiece="N"
if startPiece=="." and endPiece==".":
pos-=1000000 * how
elif startPiece==".":
pos-=10000 * how
elif endPiece==".":
pos-=10000 * how
if s*3 in line:#need improving #贏了也照下
if depth==0 and onlyCheck:
gameover("lose")
pos+=1000000000000 * how
#print("too good")
checkend=True
if s*2 in line:
start=line.find(s*2)-1
end=start+3
if start>=0:
startPos=piecePos[start]
startPiece=b[startPos[0]][startPos[1]]
else:
startPiece="N"
if end<=len(line)-1:
endPos=piecePos[end]
endPiece=b[endPos[0]][endPos[1]]
else:
endPiece="N"
if startPiece=="." and endPiece==".":
pos+=2000 * how
elif startPiece==".":
pos+=500 * how
elif endPiece==".":
pos+=500 * how
if s*1 in line:
start=line.find(s*1)-1
end=start+2
if start>=0:
startPos=piecePos[start]
startPiece=b[startPos[0]][startPos[1]]
else:
startPiece="N"
if end<=len(line)-1:
endPos=piecePos[end]
endPiece=b[endPos[0]][endPos[1]]
else:
endPiece="N"
if startPiece=="." and endPiece==".":
pos+=1000 * how
elif startPiece==".":
pos+=10 * how
elif endPiece==".":
pos+=10 * how
if e+"."+e in line:
pos-=1000000000 * how
#up#########################################################################
return pos,checkend
def ai(positions,who,board):
if positions!=dict():
besty,bestx=positions[max(positions.keys())]
#print(positions)
#whose turn
if who=="AI":
board[besty][bestx]="X"
elif who=="playerAI":
board[besty][bestx]="O"
else:
print("the AI of this game is too stupid to decide where to place its pawn.")
print("So it's time for u to defeat it.")
return board
def gameover(text):
if text=="win":
print("U win!!!")
elif text=="lose":
print("haha u lose!!!")
elif text=="tie":
print("the board is full!!!")
print("LOOK WHAT U'VE DONE!!!")
time.sleep(5)
print("end!")
sys.exit()
#size=9
size=5
CheckDepth=1
CheckDataAmount=10000000
board=[["." for i in range(size)] for i in range(size)]
boardSpaceAmount=size**2
print(f"boardSpaceAmount:{boardSpaceAmount}")
printBoard(board)
while 1:
#player
player()
boardSpaceAmount-=1
printBoard(board)
#test board full check code:
#board=[["滿" for i in range(size)] for i in range(size)]
positions=DeepCheck(1,True)
#AI
#getTheProperCheckDepth
CheckDepth=int(-0.5 * boardSpaceAmount +16)
print(f"CheckDepth : {CheckDepth}")
positions=DeepCheck(CheckDepth,False)
#time.sleep(3)
clear()
board=ai(positions,"AI",board)
boardSpaceAmount-=1
printBoard(board)
positions=DeepCheck(1,True)