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Level.py
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import os
import copy
class Matrix(list):
"""
A Matrix represents a game state.
It contains not only the grid information but also
utility methods
"""
size = None
target_found = False
_string = None
moves = None
actions = ""
def getSize(self):
"""
Gets the size of the matrix (The maximum width/height)
"""
return self.size
def getPlayerPosition(self):
"""
Gets the position of the player in the current state
"""
# Iterate all Rows
for i in range(0, len(self)):
# Iterate all columns
for k in range(0, len(self[i]) - 1):
if self[i][k] == "@":
return [k, i]
def getBoxes(self):
"""
Gets the position of all the boxes on screen
"""
# Iterate all Rows
boxes = []
for i in range(0, len(self)):
# Iterate all columns
for k in range(0, len(self[i]) - 1):
if self[i][k] == "$":
boxes.append([k, i])
return boxes
def getTargets(self):
"""
Gets the position of all the targets on screen
"""
# Iterate all Rows
boxes = []
for i in range(0, len(self)):
# Iterate all columns
for k in range(0, len(self[i]) - 1):
if self[i][k] == ".":
boxes.append([k, i])
return boxes
def isSuccess(self):
"""
Checks if the current state is the end state of the game.
"""
return len(self.getBoxes()) == 0
def isFailure(self):
return False
def getPossibleActions(self):
x = self.getPlayerPosition()[0]
y = self.getPlayerPosition()[1]
def update_valid(item, move, get_two_step):
if item not in "*#$":
return (move, 'Move')
if item in "$*" and get_two_step() not in "*#$":
# We really prefer pushing the blocks over just roaming around
# We do not like moving blocks out of their respective targets
return (move, "Push") if item is '$' else (move, "PushOut")
return None
moves = []
action_cost = update_valid(self[y][x - 1], 'L', lambda: self[y][x - 2])
if action_cost is not None:
moves.append(action_cost)
action_cost = update_valid(self[y][x + 1], 'R', lambda: self[y][x + 2])
if action_cost is not None:
moves.append(action_cost)
action_cost = update_valid(self[y - 1][x], 'U', lambda: self[y - 2][x])
if action_cost is not None:
moves.append(action_cost)
action_cost = update_valid(self[y + 1][x], 'D', lambda: self[y + 2][x])
if action_cost is not None:
moves.append(action_cost)
return moves
def successor(self, direction, performOnSelf=False):
if performOnSelf:
return self.successorInternal(self, direction)
matrix = copy.deepcopy(self)
self.successorInternal(matrix, direction)
matrix._string = None
return matrix
def toString(self, clear=False):
"""
Gives a string version of self that is cached with the assumption that
the object has not been mutated. The value can be stale if clear is not true
"""
if self._string is not None and clear is False:
return self._string
self._string = "\n".join(["".join(x) for x in self])
return self._string
def __hash__(self):
return hash(self.toString())
def __str__(self):
return self.toString()
def successorInternal(self, matrix, direction):
x = matrix.getPlayerPosition()[0]
y = matrix.getPlayerPosition()[1]
# print boxes
# print matrix.getBoxes()
if direction == "L":
# print "######### Moving Left #########"
# if is_space
if matrix[y][x - 1] == " ":
# print "OK Space Found"
matrix[y][x - 1] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
matrix.target_found = False
else:
matrix[y][x] = " "
# if is_box
elif matrix[y][x - 1] == "$":
# print "Box Found"
if matrix[y][x - 2] == " ":
matrix[y][x - 2] = "$"
matrix[y][x - 1] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
matrix.target_found = False
else:
matrix[y][x] = " "
elif matrix[y][x - 2] == ".":
matrix[y][x - 2] = "*"
matrix[y][x - 1] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
matrix.target_found = False
else:
matrix[y][x] = " "
# if is_box_on_target
elif matrix[y][x - 1] == "*":
# print "Box on target Found"
if matrix[y][x - 2] == " ":
matrix[y][x - 2] = "$"
matrix[y][x - 1] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
else:
matrix[y][x] = " "
matrix.target_found = True
elif matrix[y][x - 2] == ".":
matrix[y][x - 2] = "*"
matrix[y][x - 1] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
else:
matrix[y][x] = " "
matrix.target_found = True
# if is_target
elif matrix[y][x - 1] == ".":
# print "Target Found"
matrix[y][x - 1] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
else:
matrix[y][x] = " "
matrix.target_found = True
# else
else:
pass
#print "There is a wall here"
elif direction == "R":
# print "######### Moving Right #########"
# if is_space
if matrix[y][x + 1] == " ":
# print "OK Space Found"
matrix[y][x + 1] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
matrix.target_found = False
else:
matrix[y][x] = " "
# if is_box
elif matrix[y][x + 1] == "$":
# print "Box Found"
if matrix[y][x + 2] == " ":
matrix[y][x + 2] = "$"
matrix[y][x + 1] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
matrix.target_found = False
else:
matrix[y][x] = " "
elif matrix[y][x + 2] == ".":
matrix[y][x + 2] = "*"
matrix[y][x + 1] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
matrix.target_found = False
else:
matrix[y][x] = " "
# if is_box_on_target
elif matrix[y][x + 1] == "*":
# print "Box on target Found"
if matrix[y][x + 2] == " ":
matrix[y][x + 2] = "$"
matrix[y][x + 1] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
else:
matrix[y][x] = " "
matrix.target_found = True
elif matrix[y][x + 2] == ".":
matrix[y][x + 2] = "*"
matrix[y][x + 1] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
else:
matrix[y][x] = " "
matrix.target_found = True
# if is_target
elif matrix[y][x + 1] == ".":
# print "Target Found"
matrix[y][x + 1] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
else:
matrix[y][x] = " "
matrix.target_found = True
# else
else:
pass
# print "There is a wall here"
elif direction == "D":
# print "######### Moving Down #########"
# if is_space
if matrix[y + 1][x] == " ":
# print "OK Space Found"
matrix[y + 1][x] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
matrix.target_found = False
else:
matrix[y][x] = " "
# if is_box
elif matrix[y + 1][x] == "$":
# print "Box Found"
if matrix[y + 2][x] == " ":
matrix[y + 2][x] = "$"
matrix[y + 1][x] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
matrix.target_found = False
else:
matrix[y][x] = " "
elif matrix[y + 2][x] == ".":
matrix[y + 2][x] = "*"
matrix[y + 1][x] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
matrix.target_found = False
else:
matrix[y][x] = " "
# if is_box_on_target
elif matrix[y + 1][x] == "*":
# print "Box on target Found"
if matrix[y + 2][x] == " ":
matrix[y + 2][x] = "$"
matrix[y + 1][x] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
else:
matrix[y][x] = " "
matrix.target_found = True
elif matrix[y + 2][x] == ".":
matrix[y + 2][x] = "*"
matrix[y + 1][x] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
else:
matrix[y][x] = " "
matrix.target_found = True
# if is_target
elif matrix[y + 1][x] == ".":
# print "Target Found"
matrix[y + 1][x] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
else:
matrix[y][x] = " "
matrix.target_found = True
# else
else:
pass
# print "There is a wall here"
elif direction == "U":
# print "######### Moving Up #########"
# if is_space
if matrix[y - 1][x] == " ":
# print "OK Space Found"
matrix[y - 1][x] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
matrix.target_found = False
else:
matrix[y][x] = " "
# if is_box
elif matrix[y - 1][x] == "$":
# print "Box Found"
if matrix[y - 2][x] == " ":
matrix[y - 2][x] = "$"
matrix[y - 1][x] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
matrix.target_found = False
else:
matrix[y][x] = " "
elif matrix[y - 2][x] == ".":
matrix[y - 2][x] = "*"
matrix[y - 1][x] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
matrix.target_found = False
else:
matrix[y][x] = " "
# if is_box_on_target
elif matrix[y - 1][x] == "*":
# print "Box on target Found"
if matrix[y - 2][x] == " ":
matrix[y - 2][x] = "$"
matrix[y - 1][x] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
else:
matrix[y][x] = " "
matrix.target_found = True
elif matrix[y - 2][x] == ".":
matrix[y - 2][x] = "*"
matrix[y - 1][x] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
else:
matrix[y][x] = " "
matrix.target_found = True
# if is_target
elif matrix[y - 1][x] == ".":
# print "Target Found"
matrix[y - 1][x] = "@"
if matrix.target_found == True:
matrix[y][x] = "."
else:
matrix[y][x] = " "
matrix.target_found = True
# else
else:
pass
# print "There is a wall here"
class Level:
matrix = Matrix()
matrix_history = []
def __init__(self,set,level_num):
del self.matrix[:]
del self.matrix_history[:]
# Create level
with open(os.path.dirname(os.path.abspath(__file__)) + '/levels/' + set + '/level' + str(level_num), 'r') as f:
for row in f.read().splitlines():
self.matrix.append(list(row))
max_row_length = 0
# Iterate all Rows
for i in range(0, len(self.matrix)):
# Iterate all columns
row_length = len(self.matrix[i])
if row_length > max_row_length:
max_row_length = row_length
self.matrix.size = [max_row_length, len(self.matrix)]
self.matrix.width = max_row_length
self.matrix.height = len(self.matrix)
def __del__(self):
"Destructor to make sure object shuts down, etc."
def getMatrix(self):
return self.matrix
def addToHistory(self,matrix):
self.matrix_history.append(copy.deepcopy(matrix))
def undo(self):
if len(self.matrix_history) > 0:
lastMatrix = self.matrix_history.pop()
self.matrix = lastMatrix
return lastMatrix
else:
return self.matrix