## what can they use?
## 1) number of players at table
## 2) their cards
## 3) board
## 4) betting round
## 5) current bet (amount to them)
## 6) chips they have left at the moment
## 7) pot
## 8) history of total betting for each player in each round
## 9) big blind
## 10) tablechips
## 11) which seat they're in
## 12) who's the dealer
## 13) how many tables are left in the tournament

## 1) numattable1.   integer.
##    number of players at the table
##
## 2) cards1.    2x2 matrix.
## cards1[1,1] = the number of card 1 (between 2 and 14). cards[1,2] = suit of card 1 (a number between 1 and 4).
## cards1[2,1] = the number (2-14) of card 2. cards[2,2] = suit of card 2 (1-4).  Ace = 14.
##		
## 3) board1.    5x2 matrix.  
## board1[1,1] = number of first card (2-14).
## board1[1,2] = suit (1-4) of first card. 
## Both are zero if the card hasn't been seen yet. 
## For instance, if bettinground1 < 3, then board[4,1] = board1[4,2] = 0.
##
## 4) round1.  integer.
## 1 = preflop, 2 = after flop, 3 = after turn, 4 = after river.
##
## 5) currentbet.    integer.
##   how much MORE it is to you to stay in, right now.
##		
## 6) mychips1.     integer.
## how many chips you have left at the moment.
##	
## 7) pot1.    integer.
## how much is in the pot at the moment.
##		
## 8) roundbets.   numattable1 x 4 matrix.
## roundbets[i,j] = total amount the player in seat i put in, in betting round j.
##
## 9) blinds1.    integer.
## big blind amount. (regardless of whether the player in the big blind can afford it).
##		
## 10) chips1.  vector of length numattable1.
## chips1[i] = how many chips the player in seat i has left.
##		
## 11) ind1.    integer.
## Which seat you're in.  (So, mychips1 = chips1[ind1]).
##		
## 12) dealer1.  integer.
## Which seat the dealer is in. 
## (If only 2 players are left, then I use the convention that the "dealer" is the big blind.)
##
## 13) tablesleft.  integer.
## How many tables are left in the tournament (including yours). 







yosef = function(numattable1, crds1, board1,  round1, currentbet,  mychips1, pot1, 
    roundbets, blinds1, chips1, ind1, dealer1, tablesleft){
    ## if pair of at least 9, then all in  
    ## if nobody's bet (or raised the blinds) yet, then bet (or raise the blinds) the minimum amount possible.
    ## note: if you're big blind, or if you've already called, then
    ## those cases have to be handled separately, since for instance if 
    ## someone's raised you exactly one more big blind, then you should fold, but it will look like 
    ## nobody's raised yet since it'll again be one big blind to you.
    a1 = 0
    bigb = dealer1 + 2
    if(bigb > numattable1) bigb = bigb - numattable1
    if(round1 == 1){
	if((roundbets[ind1,1] < blinds1 - .5) && (currentbet < blinds1+.5)){
	    a1 = min(2*blinds1, mychips1)
	} else if ((ind1 == bigb) && (currentbet < blinds1 - .5)) a1 = min(blinds1, mychips1)
    }
    if((round1 > 1.5) && (currentbet < .5)) a1 = min(blinds1, mychips1)
    if((crds1[1,1] == crds1[2,1]) && (crds1[2,1] > 8.5)) a1 = mychips1
    a1
} ## end of yosef




zelda = function(numattable1, crds1, board1,  round1, currentbet,  mychips1, pot1, 
    roundbets, blinds1, chips1, ind1, dealer1, tablesleft){
    a1 = 0 ## how much I'm gonna end up betting. Note that the default is zero.
    a2 = min(mychips1, currentbet) ## how much it costs to call
    
    if(round1 == 1){ ## pre-flop:
	## AK: Make a big raise if nobody has yet. Otherwise call.
	## AQ: call a small raise, or make one if nobody has yet.
	## AJ, AT, KQ, KJ, QJ: call a tiny raise.
	## A9, KT, K9, QT, JT, T9: call a tiny raise if in late position (within 2 of the dealer).
	## Suited A2-AJ: call a small raise.
	## 22-99: call a small raise.
	## TT-KK: make a huge raise. If someone's raised huge already, then go all in.
	## AA: make a small raise. If there's been a raise already, then double how much it is to you.
	
	a3 = 2*blinds1+1 ## how much a tiny raise would be
	a4 = 4*blinds1+1 ## how much a small raise would be
	a5 = max(8*blinds1,mychips1/4)+1 ## how much a big raise would be
	a6 = max(12*blinds1,mychips1/2)+1 ## how much a huge raise would be
	a7 = dealer1 - ind1
	if(a7 < -.5) a7 = a7 + numattable1 ## your position: a7 = how many hands til you're dealer
	
	if((crds1[1,1] == 14) && (crds1[2,1] == 13)){
	    a1 = max(a2,a5)
	}
	if((crds1[1,1] == 14) && (crds1[2,1] == 12)){
	    if(a2 < a4){
		a1 = a4
	    } else if(a2 > a5){
		a1 = 0
	    } else a1 = a2
	}
	if(((crds1[1,1] == 14) && ((crds1[2,1] < 11.5) && (crds1[2,1] > 9.5))) || 
	    ((crds1[1,1] == 13) && (crds1[2,1] > 10.5)) ||
	    ((crds1[1,1] == 12) && (crds1[2,1] == 11))){
	    if(a2 < a3) a1 = a2
	}
	if(((crds1[1,1] == 14) && (crds1[2,1] == 9)) || 
	    ((crds1[1,1] == 13) && ((crds1[2,1] == 10) || (crds1[2,1] == 9))) ||
	    ((crds1[1,1] == 12) && (crds1[2,1] == 10)) ||
	    ((crds1[1,1] == 11) && (crds1[2,1] == 10)) ||
	    ((crds1[1,1] == 10) && (crds1[2,2] == 9))){
	    if((a2 < a3) && (a7<2.5)) a1 = a2
	}
	if((crds1[1,2] == crds1[2,2]) && (crds1[1,1] == 14) && (crds1[2,1] < 11.5)){
	    if(a2<a4) a1 = a2
	    ## Note: this trumps the previous section, since it comes later in the code.
	}
	if((crds1[1,1] == crds1[2,1])){ ## pairs:
	    if(crds1[1,1] < 9.5){
		if(a2 < a4) a1 = a2
	    } else if(crds1[1,1] < 13.5){
		if(a2<a5) a1 = a5 else a1 = mychips1
	    } else {
		if(a2 < blinds1 + .5) a1 = a4 else a1 = min(2*a2,mychips1)
	    }
	}
    }
    if(round1 == 2){ ## post-flop: 
	## If there's a pair on the board and you don't have a set, then check/call up to small bet.
	## Same thing if there's 3-of-a-kind on the board and you don't have a full house or more.
	## If you have top pair or an overpair or two pairs or a set, make a big bet (call any bigger bet). 
	## Otherwise, if nobody's made even a small bet yet, then with prob. 20% make a big bluff bet.
	## If you're the last to decide and nobody's bet yet, then increase this prob. to 50%.
	## If you have an inside straight draw or flush draw then make a small bet (call any bigger bet).
	## If you have a straight or better, then just call.
	## Otherwise fold.
	
	a5 = min(sum(roundbets[,1]),mychips1) ## how much a big bet would be (prev round's pot size)
	a6 = min(.5*sum(roundbets[,1]),mychips1) ## how much a small bet would be	
	x = handeval(c(crds1[1:2,1], board1[1:3,1]), c(crds1[1:2,2], board1[1:3,2])) ## what you have
	x1 = handeval(c(board1[1:3,1]),c(board1[1:3,2])) ## what's on the board
	y = straightdraw1(c(crds1[1:2,1], board1[1:3,1]))
	z = flushdraw1(c(crds1[1:2,2], board1[1:3,2]))
	topcard1 = max(board1[1:3,1])
	a7 = runif(1) ## random number uniformly distributed between 0 and 1
	a8 = (1:numattable1)[roundbets[,1] == roundbets[ind1,1]] ## others who can still bet with you
	## The next 5 lines may seem weird, but the purpose is explained in the next comment:
	a9 = a8 - dealer1
	for(i in 1:length(a9)) if(a9[i]<.5) a9[i] = a9[i] + numattable1
	a10 = ind1 - dealer1
	if(a10 < .5) a10 = a10 + numattable1
	a11 = 2*(a10 == max(a9))   ## So a11 = 2 if you're last to decide; otherwise a11 = 0.
	
	if((x1 > 1000000) && (x < 3000000)){
	    if(a2 < a6) a1 = a2
	} else if((x1 > 3000000) && (x < 6000000)){
	    if(a2 < a6) a1 = a2
	} else if(x > 1000000 + 15^3*topcard1){
	    a1 = max(a5,a2)
	} else if((a2 < a6) && ((a7 < .20) || ((a7 < .50) && (a11>1)))){
	    a1 = a6
	}
	if((y == 4) || (z == 4)) a1 = max(a6, a2)
	if(x > 4000000) a1 = a2
    }
    if(round1 == 3){ ## after turn: 
	## If there's a pair on the board and you don't have a set, then check/call up to small bet.
	## Same thing if there's 3-of-a-kind on the board and you don't have a full house or more.
	## Otherwise, if you have top pair or better, go all in.
	## If you had top pair or overpair but now don't, then check/call a medium bet but fold to more.
	## If you have an inside straight draw or flush draw then check/call a medium bet as well.
	## Otherwise check/fold.
	a6 = min(1/3*sum(roundbets[,1:2]),mychips1) ## small bet (1/3 of prev round's pot size)
	a5 = min(.75*sum(roundbets[,1:2]),mychips1) ## medium bet (3/4 of prev round's pot size)
	x = handeval(c(crds1[1:2,1], board1[1:4,1]), c(crds1[1:2,2], board1[1:4,2])) ## what you have
	x1 = handeval(c(board1[1:4,1]),c(board1[1:4,2])) ## what's on the board
	y = straightdraw1(c(crds1[1:2,1], board1[1:4,1]))
	z = flushdraw1(c(crds1[1:2,2], board1[1:4,2]))
	topcard1 = max(board1[1:4,1])
	oldtopcard1 = max(board1[1:3,1])
	if((x1 > 1000000) && (x < 3000000)){
	    if(a2 < a6) a1 = a2
	} else if((x1 > 3000000) && (x < 6000000)){
	    if(a2 < a6) a1 = a2
	} else if(x > 1000000 + 15^3*topcard1){
	    a1 = mychips1
	} else if(x > 1000000 + 15^3*oldtopcard1){
	    if(a2 < a5) a1 = a2
	} else if((y == 4) || (z == 4)){
	    if(a2 < a5) a1 = a2
	}
    }
    if(round1 == 4){ ## after river: 
	## If there's a pair on the board and you don't have a set, then check/call up to small bet.
	## Same thing if there's 3-of-a-kind on the board and you don't have a full house or more.
	## Otherwise, if you have two pairs or better, go all in.
	## If you have one pair, then check/call a small bet.
	## With nothing, go all-in with probability 10%; otherwise check/fold.
	a6 = .45+runif(1)/10  ## random number between .45 and .55
	a5 = min(a6*sum(roundbets[,1:3]),mychips1) ## small bet: around 1/2 of pot size; VARIES RANDOMLY
	x = handeval(c(crds1[1:2,1], board1[1:5,1]), c(crds1[1:2,2], board1[1:5,2]))
	x1 = handeval(c(board1[1:5,1]),c(board1[1:5,2])) ## what's on the board
	if((x1 > 1000000) && (x < 3000000)){
	    if(a2 < a5) a1 = a2
	} else if((x1 > 3000000) && (x < 6000000)){
	    if(a2 < a5) a1 = a2
	} else if(x > 2000000){
	    a1 = mychips1
	} else if(x > 1000000){
	    if(a2 < a5) a1 = a2
	} else if(runif(1)<.10){
	    a1 = mychips1
	}
    }
    round(a1)
} ## end of zelda











switch2 = function(x){
    ## takes a number 1-52, and turns it into a card: 
    ## returns a list, where the 1st is the number (2-14), and 2nd is suit (1-4).
    n = length(x)
    y = list(num=x, st=rep(1,n))
    for(i in c(1:n)){
	a = 1
	while(a>0){
	    if(y$num[i]<14) a = -1 else{y$st[i] = y$st[i]+1
		y$num[i] = y$num[i]-13
	    }
	}
    }
    y$num = y$num+1
    y
} ## end of switch2


deal1 = function(numpl){
    ## numpl is the number of players at the table
    numcards = 2*numpl+5
    crds1 = order(runif(52))[1:numcards]
    crds2 = switch2(crds1)
    num1 = crds2$num
    suit1 = crds2$st 
    brdnum1 = num1[(numcards-4):numcards]
    brdsuit1 = suit1[(numcards-4):numcards]
    plnum1 = matrix(num1[1:(2*numpl)],ncol=2)
    plsuit1 = matrix(suit1[1:(2*numpl)],ncol=2)
    ## order them
    for(i in c(1:numpl)){
	if(plnum1[i,1]<plnum1[i,2]){
	    a = plnum1[i,1]
	    plnum1[i,1] = plnum1[i,2]
	    plnum1[i,2] = a
	    a = plsuit1[i,1]
	    plsuit1[i,1] = plsuit1[i,2]
	    plsuit1[i,2] = a
	}
    }
    b9 = list(plnum1=plnum1, plsuit1=plsuit1,
	brdnum1=brdnum1, brdsuit1=brdsuit1)
    b9
}	## end of deal1


tester1 = function(x,k){
    t1 = Sys.time()
    for(i in 1:k){
	## First the easy stuff: numattable1, round1, ind1, dealer1, chips1, mychips1, blinds1, tablesleft
	numattable1 = sample(9,1)+1  ## random integer between 2 and 10 (inclusive).
	round1 = sample(4,1)  ## random integer between 1 and 4 (inclusive).
	ind1 = sample(numattable1,1) ## random integer between 1 and numattable1.
	dealer1 = sample(numattable1,1) ## random integer between 1 and numattable1.
	chips1 = sample(20000,numattable1, rep=T) ## a vector of random numbers between 1 and 20000.
	chips1 = chips1 * (runif(numattable1)<.8) ## make these zero (which means all in) 20% of the time.
	chips1[ind1] = sample(20000,1) ## but not you -- you have chips left.
	mychips1 = chips1[ind1]
	blinds1 = sample(4001,1) + 19 ## random integer between 20 and 4020.
	tablesleft = sample(3,1) ## random integer between 1 and 3
	
	## Now the harder ones: currentbet, roundbets, pot1, crds1, and board1
	currentbet = sample(5000,1) ## random integer between 1 and 5000.
	x1 = runif(1) ## random number between 0 and 1
	if(x1 < .40) currentbet = 0 ## 40% of the time I'll make currentbet 0, since that is common
	if(x1 > .80) currentbet = blinds1 ## 20% of the time I'll make currentbet equal to the big blind.
	
	roundbets = matrix(rep(0,(4*numattable1)),ncol=4)
	for(j2 in 1:numattable1){
	    roundbets[j2,1:round1] = sample(5,round1,rep=T)*blinds1
	    if(runif(1) < .5) roundbets[j2,1] = 0
	}
	## make sure small blind and big blind paid their blinds
	smb1 = dealer1 + 1
	if(smb1 > numattable1) smb1 = smb1 - numattable1
	bigb = dealer1+2
	if(bigb > numattable1) bigb = bigb - numattable1
	if(roundbets[smb1,1] < .5) roundbets[smb1,1] = round(blinds1/2)
	if(roundbets[bigb,1] < .5) roundbets[bigb,1] = blinds1
	currentbet = max(roundbets[,round1]) - roundbets[ind1,round1]
	## Be careful: if you're not the big blind and if the big blind doesn't have enough chips, then it still may be blinds1 to you:
	if(round1 == 1){
	    bmax1 = max((roundbets[-ind1,1] + chips1[-ind1]))
	    if(bmax1 < currentbet) currentbet = bmax1
	}
	## Note: this was sloppy, and things could happen here that couldn't really happen. 
	## For instance, an opponent could have bet zero (i.e. folded) in round 1 but bet big in round 2.
	## So, if you DON'T have a problem here, then you're sure to be good to go.
	## But if you DO have a problem here sometimes, that could possibly be because of these artificial scenarios, and
	## maybe you're actually good to go.
	## Still, this might be useful in detecting syntax errors and other obvious problems.
	pot1 = sum(roundbets[,1:round1])
	b3 = deal1(numattable1)
	crds1 = matrix(c(b3$plnum1[ind1,],b3$plsuit1[ind1,]),ncol=2,byrow=F)
	v1 = c(0,3,4,5)[round1] 
	board1 = matrix(rep(0,10),ncol=2)
	board1[1:v1,1] = b3$brdnum1[1:v1]
	board1[1:v1,2] = b3$brdsuit1[1:v1]
	x2 = x(numattable1, crds1, board1,  round1, currentbet,  mychips1, pot1, 
	    roundbets, blinds1, chips1, ind1, dealer1, tablesleft)
	# cat("\n On trial ",i,", current bet to you is ",currentbet,", and you have ",mychips1," chips, and you bet ",x2,".")
    }
    t2 = Sys.time()
    t3 = as.numeric(t2-t1)/k
    print(t1)
    print(t2)
    cat("\n It took an average of ",t3," seconds to run the function.\n")
}


## source(hands101.s)
## tester1(xena,1000)
## tester1(ursula,1000)