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unused_heuristics.py
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unused_heuristics.py
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# Heuristics that I tested early on. Some appear in the charts of heuristic_analysis.pdf, so I keep them here for reference.
# I don't recommend using any.
from heuristics import check_future_steps
#These are early heuristics that were not successful
def dist_diff_score(game, player):
#Use DIST for the first half of the game, DIFF for the end
if game.is_loser(player):
return float("-inf")
if game.is_winner(player):
return float("inf")
if len(game.get_blank_spaces())>30:
w, h = (game.width-1) / 2., (game.height-1) / 2.
y, x = game.get_player_location(player)
return float(abs(h - y) + abs(w - x))
else:
own_moves = game.get_legal_moves(player)
opp_moves = game.get_legal_moves(game.get_opponent(player))
return float(len(own_moves)-len(opp_moves))
def diff_dist_score(game, player):
#USE DIFF for the first half of the game, DIST for the end
if game.is_loser(player):
return float("-inf")
if game.is_winner(player):
return float("inf")
# print("In stages_score: num_spaces is ", num_spaces, " dist is ", dist," and diff is ",diff)
if len(game.get_blank_spaces())>30:
own_moves = game.get_legal_moves(player)
opp_moves = game.get_legal_moves(game.get_opponent(player))
return float(len(own_moves)-len(opp_moves))
else:
w, h = (game.width-1) / 2., (game.height-1) / 2.
y, x = game.get_player_location(player)
return float(abs(h - y) + abs(w - x))
def adv_stages_score(game, player):
if game.is_loser(player):
return float("-inf")
if game.is_winner(player):
return float("inf")
blank_spaces = game.get_blank_spaces()
num_spaces = len(blank_spaces)
if num_spaces>44:
return 1
w, h = (game.width-1) / 2., (game.height-1) / 2.
y, x = game.get_player_location(player)
dist = float(abs(h - y) + abs(w - x))
own_moves = game.get_legal_moves(player)
opp_moves = game.get_legal_moves(game.get_opponent(player))
diff = len(own_moves)-len(opp_moves)
if num_spaces>16:
return diff - dist/2.
if num_spaces<2:
return 1
MAX_STEPS = 5
own_max_steps = 1
opp_max_steps = 1
for m in own_moves:
blank_spaces.remove(m)
num_steps = check_future_steps(m, 1, MAX_STEPS, player, blank_spaces)
if num_steps==MAX_STEPS:
own_max_steps = MAX_STEPS
blank_spaces.append(m)
break
blank_spaces.append(m)
if num_steps>own_max_steps:
own_max_steps = num_steps
if len(blank_spaces)>8:
return own_max_steps+diff/5.
for mo in opp_moves:
blank_spaces.remove(mo)
num_steps = check_future_steps(mo, 1, MAX_STEPS, player, blank_spaces)
if num_steps==MAX_STEPS:
opp_max_steps = MAX_STEPS
blank_spaces.append(mo)
break
blank_spaces.append(mo)
if num_steps>opp_max_steps:
opp_max_steps = num_steps
return own_max_steps-opp_max_steps+diff/5.
def next_step_score(game, player):
if game.is_loser(player):
return float("-inf")
if game.is_winner(player):
return float("inf")
blank_spaces = game.get_blank_spaces()
w, h = (game.width-1) / 2., (game.height-1) / 2.
y, x = game.get_player_location(player)
dist = float(abs(h - y) + abs(w - x))
num_spaces = len(blank_spaces)
if num_spaces<2:
return 1
MAX_STEPS = 5
own_max_steps = 1
opp_max_steps = 1
own_moves = game.get_legal_moves(player)
opp_moves = game.get_legal_moves(game.get_opponent(player))
for m in own_moves:
blank_spaces.remove(m)
num_steps = check_future_steps(m, 1, MAX_STEPS, player, blank_spaces)
if num_steps==MAX_STEPS:
own_max_steps = MAX_STEPS
blank_spaces.append(m)
break
blank_spaces.append(m)
if num_steps>own_max_steps:
own_max_steps = num_steps
if len(blank_spaces)>20:
return own_max_steps+dist/5.
for mo in opp_moves:
blank_spaces.remove(mo)
num_steps = check_future_steps(mo, 1, MAX_STEPS, player, blank_spaces)
if num_steps==MAX_STEPS:
opp_max_steps = MAX_STEPS
blank_spaces.append(mo)
break
blank_spaces.append(mo)
if num_steps>opp_max_steps:
opp_max_steps = num_steps
return own_max_steps-opp_max_steps-dist/5
def mod_stages_score(game, player):
if game.is_loser(player):
return float("-inf")
if game.is_winner(player):
return float("inf")
blank_spaces = game.get_blank_spaces()
w, h = (game.width-1) / 2., (game.height-1) / 2.
y, x = game.get_player_location(player)
dist = float(abs(h - y) + abs(w - x))
num_spaces = len(blank_spaces)
if num_spaces>40:
return float(dist)
own_moves = game.get_legal_moves(player)
opp_moves = game.get_legal_moves(game.get_opponent(player))
diff = len(own_moves)-len(opp_moves)
if num_spaces>30:
return diff + dist/2.
if num_spaces>17:
return diff
if num_spaces<2:
return 1
MAX_STEPS = 6
own_max_steps = 1
opp_max_steps = 1
for m in own_moves:
blank_spaces.remove(m)
num_steps = check_future_steps(m, 1, MAX_STEPS, player, blank_spaces)
if num_steps==MAX_STEPS:
own_max_steps = MAX_STEPS
blank_spaces.append(m)
break
blank_spaces.append(m)
if num_steps>own_max_steps:
own_max_steps = num_steps
if len(blank_spaces)>16:
return own_max_steps+diff/5.
for mo in opp_moves:
blank_spaces.remove(mo)
num_steps = check_future_steps(mo, 1, MAX_STEPS, player, blank_spaces)
if num_steps==MAX_STEPS:
opp_max_steps = MAX_STEPS
blank_spaces.append(mo)
break
blank_spaces.append(mo)
if num_steps>opp_max_steps:
opp_max_steps = num_steps
return own_max_steps-opp_max_steps+diff/5.
def diff_late_game(game, player):
if game.is_loser(player):
return float("-inf")
if game.is_winner(player):
return float("inf")
blank_spaces = game.get_blank_spaces()
num_spaces = len(blank_spaces)
if num_spaces>44:
return 1
w, h = (game.width-1) / 2., (game.height-1) / 2.
y, x = game.get_player_location(player)
dist = float(abs(h - y) + abs(w - x))
own_moves = game.get_legal_moves(player)
opp_moves = game.get_legal_moves(game.get_opponent(player))
diff = len(own_moves)-len(opp_moves)
if num_spaces>24:
return diff - dist/2.
if num_spaces<12:
return diff
MAX_STEPS = 5
own_max_steps = 1
opp_max_steps = 1
for m in own_moves:
blank_spaces.remove(m)
num_steps = check_future_steps(m, 1, MAX_STEPS, player, blank_spaces)
if num_steps==MAX_STEPS:
own_max_steps = MAX_STEPS
blank_spaces.append(m)
break
blank_spaces.append(m)
if num_steps>own_max_steps:
own_max_steps = num_steps
for mo in opp_moves:
blank_spaces.remove(mo)
num_steps = check_future_steps(mo, 1, MAX_STEPS, player, blank_spaces)
if num_steps==MAX_STEPS:
opp_max_steps = MAX_STEPS
blank_spaces.append(mo)
break
blank_spaces.append(mo)
if num_steps>opp_max_steps:
opp_max_steps = num_steps
return own_max_steps-opp_max_steps+diff/5.
def stages_score(game, player):
if game.is_loser(player):
return float("-inf")
if game.is_winner(player):
return float("inf")
blank_spaces = game.get_blank_spaces()
own_moves = game.get_legal_moves(player)
opp_moves = game.get_legal_moves(game.get_opponent(player))
diff = len(own_moves)-len(opp_moves)
w, h = (game.width-1) / 2., (game.height-1) / 2.
y, x = game.get_player_location(player)
dist = float(abs(h - y) + abs(w - x))
num_spaces = len(blank_spaces)
player.isTimeout()
if num_spaces>40:
return dist + diff/2.
if num_spaces>30:
return diff + dist/4.
if num_spaces>20:
return diff+dist/8.
if num_spaces<2:
return 1
if num_spaces>16:
MAX_STEPS = 3
else:
MAX_STEPS = 7
own_max_steps = 1
opp_max_steps = 1
for m in own_moves:
blank_spaces.remove(m)
num_steps = check_future_steps(m, 1, MAX_STEPS, player, blank_spaces)
if num_steps==MAX_STEPS:
own_max_steps = MAX_STEPS
blank_spaces.append(m)
break
blank_spaces.append(m)
if num_steps>own_max_steps:
own_max_steps = num_steps
if len(blank_spaces)>16:
return own_max_steps+diff/5.
for mo in opp_moves:
blank_spaces.remove(mo)
num_steps = check_future_steps(mo, 1, MAX_STEPS, player, blank_spaces)
if num_steps==MAX_STEPS:
opp_max_steps = MAX_STEPS
blank_spaces.append(mo)
break
blank_spaces.append(mo)
if num_steps>opp_max_steps:
opp_max_steps = num_steps
return own_max_steps-opp_max_steps+diff/5.