def get(self):
user = users.get_current_user()
if not user:
self.redirect('/')
return
# get the most recent game the user has been playing
q = db.GqlQuery(""" SELECT * FROM Gamestate
WHERE player = :1
ORDER BY date DESC
LIMIT 1""", user)
games = q.fetch(1)
# redirect to the main page if we didn't find any games for this user
if len(games)==0 or games[0].game_over:
game = Gamestate()
game.player = user
trail_length = 30
num_chips = 20
# generate all the random numbers at once using choice() for efficiency
choices = [0, 1, 2, 3, 4, 5]
nums = [choice(choices) for _ in range(trail_length + num_chips)]
# make the trail from the first set of numbers
trail = nums[:trail_length]
# the remaining numbers identify chips
num_colors = 7
chips = num_colors * [0]
for i in nums[trail_length:]:
chips[i] += 1
game.trail = trail
game.chips = chips
game.iteration = 0
game.location = -1
game.score = 0
game.game_over = False
game.trade1 = num_colors * [0]
game.trade2 = num_colors * [0]
game.round1_choices = 0
game.round1_rational = 0
game.round2_choices = 0
game.round2_rational = 0
game.chips_to_finish = False
game.finalized = False
# 50% of games will be the standard game, the other 50% will be evenly
# divided between 50%, 75%, and 90%
if ALLOW_FRAUD:
game.trade_honesty = choice([0.5, 0.75, 0.9, 1.0, 1.0, 1.0])
else:
game.trade_honesty = 1.0
game.trade_honoured = True
put_safe(game)
self.redirect('/gameplay')
def add_high_score(game):
"""Adds this game to the list of high scoring games and bumps the lowest
game from the high score list."""
# add the new high score
newhs = HighScore()
newhs.name = str(game.player)
newhs.score = game.score
put_safe(newhs)
# remove the lowest score
q = db.GqlQuery(GQL_HIGH_SCORES)
hscores = q.fetch(1, NUM_HIGH_SCORES)
if len(hscores) > 0:
db.delete(hscores)
def post(self):
user = users.get_current_user()
if user:
q = db.GqlQuery(""" SELECT * FROM Gamestate
WHERE player = :1
ORDER BY date DESC
LIMIT 1 """, user)
games = q.fetch(1)
# redirect to the main page if we didn't find any games for this user
if (len(games) == 0):
self.redirect('/')
return
game = games[0]
chips = game.chips
# update the number of choices made
is_round1 = (game.iteration <= HALFWAY_POINT)
if is_round1:
game.round1_choices = game.round1_choices + 1
else:
game.round2_choices = game.round2_choices + 1
# get which trade was taken
choiceh = self.request.get("choiceh", '')
if choiceh == '':
# only works if javascript is off (which is when choiceh fails)
took_trade1 = (self.request.get("Choice_1", '') != '')
else:
took_trade1 = (choiceh == 'Accept Trade 1')
# get the trade objects
if took_trade1:
trade_taken = game.trade1
trade_not_taken = game.trade2
else:
trade_taken = game.trade2
trade_not_taken = game.trade1
# determine whether it was rational
rational = (trade_taken[VALUE_INDEX] >= trade_not_taken[VALUE_INDEX])
if rational:
if is_round1:
game.round1_rational = game.round1_rational + 1
else:
game.round2_rational = game.round2_rational + 1
# apply the trade?
values_differ = (trade_taken[VALUE_INDEX] != trade_not_taken[VALUE_INDEX])
game.trade_honoured = (is_round1 or not values_differ or random.random() <= game.trade_honesty)
if game.trade_honoured:
for i in range(len(chips)):
chips[i] = chips[i] + trade_taken[i]
game.iteration = game.iteration + 1
#If the player is not in the last spot, update their position
if (game.location < (len(game.trail) - 1 )):
next_color = game.trail[game.location + 1]
if (chips[next_color] > 0):
chips[next_color] = chips[next_color] - 1
game.location = game.location + 1
game.chips = chips
#Generate a list of chip-requirements for the trail
trail_reqs = [0, 0, 0, 0, 0, 0]
for i in range(game.location+1, len(game.trail)):
trail_reqs[game.trail[i]] = trail_reqs[game.trail[i]] + 1
#Subtract current chips from trail requirements
#Assume player has all the chips they need - if a positive number appears in need, set flag to false
needs = [trail_reqs - chips for trail_reqs, chips in zip(trail_reqs, chips)]
game.chips_to_finish = True
for x in needs:
if (x > 0):
game.chips_to_finish = False
redir_to = '/gameplay'
if (game.location == len(game.trail)-1):
game.game_over = True
redir_to = '/endgame.html'
if (game.location + 1 == game.iteration - 7):
game.game_over = True
redir_to = '/endgame.html'
# this put() occasionally times out, so retry it a few times on failure
put_safe(game)
self.redirect(redir_to)
def get(self):
user = users.get_current_user()
if user:
q = db.GqlQuery(""" SELECT * FROM Gamestate
WHERE player = :1
ORDER BY date DESC
LIMIT 1 """, user)
games = q.fetch(1)
# redirect to the main page if we didn't find any games for this user
if (len(games) == 0):
self.redirect('/')
return
game = games[0]
# redirect back to the game if it isn't over yet!
if not game.game_over:
self.redirect('/gameplay')
return
# redirect back to the main page if this game has already been finalized
if game.finalized:
self.redirect('/')
return
finish = False
if (game.location + 1 >= len(game.trail)):
finish = True
excess_chips = 0
for i in range(0,6):
excess_chips = excess_chips + game.chips[i]
write_header(self, pb=20)
score = 5*game.location
if finish:
score = score + 50
score = score + excess_chips + game.chips[6]
self.response.out.write("""
<center>
<h1> <font color="#AA4422"><b>You Made it!!</b></font></h1>""")
else:
self.response.out.write("""
<center>
<h1> <font color="#AA4422"><b>GAME OVER</b></font></h1>""")
game.finalized = True
game.score = score
put_safe(game)
self.response.out.write("""
<h2> <font color="#445566"> Your Final Score is: %s </font></h2></center>""" % game.score)
# high score?
self.response.out.write('<p>')
self.response.out.write(check_completed_game_for_high_score(game))
self.response.out.write('</p>')
write_footer(self)
def get(self):
write_header(self, 0, 0)
user = users.get_current_user()
if user:
# get the most recent game the user has been playing
q = db.GqlQuery(""" SELECT * FROM Gamestate
WHERE player = :1
ORDER BY date DESC
LIMIT 1""", user)
games = q.fetch(1)
# redirect to the main page if we didn't find any games for this user
if (len(games) == 0):
self.redirect('/')
return
game = games[0]
# choose a unique, deterministc random seed for each iteration so the
# randomness isn't affected by simply reloading the page!
random.seed(hash(str(game.key())) + game.iteration)
if (game.game_over):
self.redirect('/endgame.html')
else:
chips = game.chips
trade1 = [0,0,0,0,0,0,0,0]
trade2 = [0,0,0,0,0,0,0,0]
#Generate Trades if they don't have the chips they need to finish
if (not game.chips_to_finish):
trail_temp = []
#Only send remaining trail
for i in range(game.location+1, len(game.trail)):
c = game.trail[i]
trail_temp.append(COLORS[c])
order_var = random.random()
#Testing base rationality - See if they can identify fair vs. unfair, good vs. bad trades
if (game.iteration <= 15):
if (order_var < 0.5):
#Good trade on Left
trade1 = createProposal(chips, trail_temp, False, 1) #Good
trade2 = createProposal(chips, trail_temp, False, -1) #Unfair/Bad
else:
#Good trade on Right
trade1 = createProposal(chips, trail_temp, False, -1)#Unfair
trade2 = createProposal(chips, trail_temp, False, 1) #Fair
else:
if (order_var < 0.5):
#Good trade on Left
trade1 = createProposal(chips, trail_temp, False, 1) #Good trade!
trade2 = createProposal(chips, trail_temp, True, -1) #zero phenomena
else:
#Good trade on Right
trade1 = createProposal(chips, trail_temp, True, -1) #zero phenomena
trade2 = createProposal(chips, trail_temp, False, 1) #Good trade!
#Save trade in data structure
game.trade1 = trade1
game.trade2 = trade2
put_safe(game)
# Print out the table displaying the game state data
write = self.response.out.write
write('<div id="game">')
write('<div id="pathname"><h2>The Path</h2></div>')
# Print out the trail, colour in the trail as appropriate
write('<div id="trail"><table><tr>')
for i in (range(31)):
if i == game.location + 1:
idf = 'id="player"'
elif i <= game.iteration - 7:
idf = 'id="fire"'
else:
idf = ''
color_num = game.trail[i-1]
color = '#FFFFFF' if color_num == -1 else HTML_COLORS[color_num]
self.response.out.write("""<td %s bgcolor="%s"> </td>""" % (idf, color))
write('</tr></table></div>')
#Output the chip counts of each colour
write('<div id="chips"><table width="100%"><tr>')
write('<td style="background-color:#FFDDAA; font: bold 24px Arial; width:200px">Your Chips</td>');
for i in range(NUM_COLORS):
write('<td style="background-color:%s; color:%s;">%u</td>' % (HTML_COLORS[i], HTML_COLORS_FG[i], chips[i]))
write('</tr></table></div>')
# Let the user know if the last trade failed (fraud!)
if not game.trade_honoured:
write('<div id="scam">You were scammed! The trade you tried to accept was fraudulent -- better luck next time.</div>')
#Print out the two choices
write('<div id="chips">')
write('<div style="padding-bottom:10px;"><h2>Choose between these two trades:</h2></div>')
write('<table width="100%">')
trade_row_start = '''<tr>
<td style="width:200px">
<FORM METHOD="POST" ACTION="/gameplay" style=" padding:0; margin:0">
<input type="hidden" id="choiceh" name="choiceh" value="nil"/>
<INPUT type="submit" id="Choice_%u" name="Choice_%u" value="Accept Trade %u" style="height:%upx"
onclick="document.getElementById('choiceh').value = this.value;
document.getElementById('Choice_1').disabled=true;
document.getElementById('Choice_2').disabled=true;">%s
</FORM>
</td>'''
warning = '''
<div id="warning">
WARNING: There is a <u>%.0f%%</u> chance this
offer is a <u>fraud</u> and won\'t have any impact!
</div>'''
for t in range(1, 3):
if t == 2:
write('<tr style="height:20px"><td colspan="%u" style="background-color:#444444;"></td></tr>' % (NUM_COLORS+1))
trade = trade1 if t == 1 else trade2
# show a warning about a dishonest trader in the second half for the rational choice
rh = 50
extra = ''
if game.iteration > HALFWAY_POINT and game.trade_honesty < 1.0:
other_trade = trade1 if t != 1 else trade2
if trade[VALUE_INDEX] > other_trade[VALUE_INDEX]:
rh = 50
extra = warning % (100.0 - 100.0*game.trade_honesty)
write(trade_row_start % (t, t, t, rh, extra))
for i in range(NUM_COLORS):
if HIDE_UNNEEDED_TRADE_CELLS and trade[i]==0:
write('<td style="background-color:#CCCCCC"></td>')
else:
write('<td style="background-color:%s; color:%s;">%u</td>' % (HTML_COLORS[i], HTML_COLORS_FG[i], trade[i]))
write('</tr>')
write('</table></div>')
if DEBUG_SHOW_VALUES:
write('Trade 1 = %u<br/>Trade 2 = %u' % (trade1[VALUE_INDEX], trade2[VALUE_INDEX]))
# all done
write_footer(self)
#Save all changes in the datastore
put_safe(game)
