def demo():
game = Nash()
game.fill_payoff()
game.show_payoff()
game.find_nash()
if game.nash.__len__() == 0:
print("game has no nash equilibrium")
return
else:
for n in game.nash:
print("({},{})".format(n.x, n.y))
player1 = []
player2 = []
i_0 = random.randint(0, 4)
j_0 = random.randint(0, 4)
player1.append(game.payoff[i_0][j_0].x)
player2.append(game.payoff[i_0][j_0].y)
count = 0
while game.is_nash(i_0, j_0) == False and count < 20:
i = Player.B_1(j_0, game.payoff)
j = Player.B_2(i_0, game.payoff)
i_0 = i
j_0 = j
player1.append(game.payoff[i_0][j_0].x)
player2.append(game.payoff[i_0][j_0].y)
count += 1
player1.append(game.payoff[i_0][j_0].x)
player2.append(game.payoff[i_0][j_0].y)
count += 1
x = range(count + 1)
player1_curve, = plt.plot(x, player1, label="player 1")
player2_curve, = plt.plot(x, player2, label="player 2")
plt.legend([player1_curve, player2_curve], ['player 1', 'player 2'])
plt.xlabel('attempt of game')
plt.ylabel('payoff')
plt.grid()
plt.show()
