RPS v4

 Author tzoidis Submission date 2016-07-16 18:17:17.735663 Rating 7443 Matches played 391 Win rate 72.63

Use rpsrunner.py to play unranked matches on your computer.

Source code:

``````import random

def mdl(N):
N%=3
if N<0:
N+=3
return N

if not input:
com={'RR':'1','RP':'2','RS':'3','PR':'4','PP':'5','PS':'6','SR':'7','SP':'8','SS':'9'}
ego={'1':0,'2':1,'3':2,'4':0,'5':1,'6':2,'7':0,'8':1,'9':2}
idt={'1':0,'2':0,'3':0,'4':1,'5':1,'6':1,'7':2,'8':2,'9':2}
k2i={'R':0,'P':1,'S':2}
i2k={0:'R',1:'P',2:'S'}
hist=[[0]*3]*2
eval=[[0]*3]*2
subs=[0]*6
prin=[[0]*6]*4
meta=[0]*4
DNA=""
flag=False
output=random.choice("RPS")
else:
DNA+=com[output+input]
if flag:
for i in range(4):
j=prin[i].index(max(prin[i]))
re=mdl(subs[j]-k2i[input])
if re==2:
meta[j]-=1
else:
meta[j]+=re
for j in range(6):
prin[1][j]*=0.9
prin[3][j]*=0.9
re=mdl(subs[j]-k2i[input])
if re==0:
for i in range(2,4):
prin[i][j]-=0.1
elif re==1:
for i in range(4):
prin[i][j]+=1
elif re==2:
for i in range(4):
if i<2 or prin[i][j]<2:
prin[i][j]-=1
else:
prin[i][j]*=0.5
for i in range(2):
for j in range(3):
hist[i][j]=0
i=-1
j=min(5,len(DNA))
while i<0 and j>1:
j-=1
RNA=DNA[-j:]
i=DNA.find(RNA,0,-1)
while i>=0:
hist[0][ego[DNA[i+j]]]+=1
hist[1][idt[DNA[i+j]]]+=1
i=DNA.find(RNA,i+1,-1)
output=random.choice("RPS")
flag=((hist[0][0]<>hist[0][1] or hist[0][1]<>hist[0][2]) and
(hist[1][0]<>hist[1][1] or hist[1][1]<>hist[1][2]))
if flag:
for i in range(2):
for j in range(3):
eval[i][j]=hist[i][mdl(j-1)]-hist[i][mdl(j+1)]
j=eval[0].index(max(eval[0]))
for i in range(3):
subs[i]=mdl(j-i)
j=eval[1].index(max(eval[1]))
for i in range(3):
subs[i+3]=mdl(j-i)
i=meta.index(max(meta))
if max(meta)>0:
j=prin[i].index(max(prin[i]))
if max(prin[i])>0:
output=i2k[subs[j]]``````