added a game5 example and made some general improvemnts to games 1-4

Author: calebsmith

examples/board.dat

@@ -1,23 +1,15 @@
-******************************************
-*                            *           *
-*                            *           *
-*                            *           *
-*                            *************
-*                            *           *
-*                            *           *
-*                            *           *
-*                    ^       *           *
-*                            *           *
-******************************************
-*                                        *
-*                                        *
-*                                        *
-*                                        *
-*                                        *
-*                                        *
-*                                        *
-*                                        *
-*                                        *
-*                                        *
-*                                        *
-******************************************
+******************************
+*                *           *
+*                *           *
+*                *           *
+*                *    o      *
+*                *           *
+*         ^      *           *
+*                *           *
+*************-**********-*****
+*                            *
+*                  $         *
+*                            *
+*                            *
+*                            *
+******************************

examples/game1.py

@@ -26,6 +26,15 @@ def print_char(char):
     print(char, end='')
 
 
+def get_input():
+    try:
+        move = raw_input("Choose a direction (Type `quit` to quit): ")
+    except NameError:
+        # Python3
+        move = input("Choose a direction (Type `quit` to quit): ")
+    return move
+
+
 def load_board(filename):
     """
     Given a filename of a text file, load the characters therein and return as
@@ -79,7 +88,7 @@ def main():
         # Display the board and player
         display(board, player_x, player_y)
         # Obtain and handle user input
-        move = raw_input("Choose a direction (Type `quit` to quit): ")
+        move = get_input()
         # FIXME: Insert code here to handle the 'move' the player has made.
         # (Hint: should manipulate player_x and player_y)
         if move == 'quit':

examples/game2.py

@@ -27,6 +27,15 @@ def print_char(char):
     print(char, end='')
 
 
+def get_input():
+    try:
+        move = raw_input("Choose a direction (Type `quit` to quit): ")
+    except NameError:
+        # Python3
+        move = input("Choose a direction (Type `quit` to quit): ")
+    return move
+
+
 def load_board(filename):
     """
     Given a filename of a text file, load the characters therein and return as
@@ -79,7 +88,7 @@ def main():
     player_y = PLAYER_Y_START
     while True:
         display(board, player_x, player_y)
-        move = raw_input("Choose a direction (Type `quit` to quit): ")
+        move = get_input()
         if move == 'quit':
             return True
         # FIXME: Make it so the player cannot walk through walls

examples/game3.py

@@ -23,12 +23,23 @@
 PLAYER_X_START = 5
 PLAYER_Y_START = 5
 
+NON_SOLIDS = ['^', '$', 'o', ' ']
+
 
 def print_char(char):
     """Print only the given `char` without a newline"""
     print(char, end='')
 
 
+def get_input():
+    try:
+        move = raw_input("Choose a direction (Type `quit` to quit): ")
+    except NameError:
+        # Python3
+        move = input("Choose a direction (Type `quit` to quit): ")
+    return move
+
+
 def load_board(filename):
     """
     Given a filename of a text file, load the characters therein and return as
@@ -84,20 +95,20 @@ def main():
         display(board, player_x, player_y, player_inventory)
         print('Player inventory:')
         # FIXME: Print out the player's inventory here
-        move = raw_input("Choose a direction (Type `quit` to quit): ")
+        move = get_input()
         if move == 'quit':
             return True
         if move == 'up':
-            if get_tile(board, player_x, player_y - 1) != '*':
+            if get_tile(board, player_x, player_y - 1) in NON_SOLIDS:
                 player_y -= 1
         if move == 'down':
-            if get_tile(board, player_x, player_y + 1) != '*':
+            if get_tile(board, player_x, player_y + 1) in NON_SOLIDS:
                 player_y += 1
         if move == 'left':
-            if get_tile(board, player_x - 1, player_y) != '*':
+            if get_tile(board, player_x - 1, player_y) in NON_SOLIDS:
                 player_x -= 1
         if move == 'right':
-            if get_tile(board, player_x + 1, player_y) != '*':
+            if get_tile(board, player_x + 1, player_y) in NON_SOLIDS:
                 player_x += 1
         # FIXME: Check if the user has obtained the item (A ^ on the board)
         # Remove the item from the board if the user picks it up

examples/game4.py

@@ -11,6 +11,9 @@
     * Moves the player on the board when the user types input such as "up"
     * Prevents the player from walking through walls
     * Makes it so the player can pick up the item (Item looks like ^)
+
+Implement the following:
+    * Make it so the player can use the key to open the door.
 """
 from __future__ import print_function
 
@@ -19,12 +22,23 @@
 PLAYER_X_START = 5
 PLAYER_Y_START = 5
 
+NON_SOLIDS = ['^', '$', 'o', ' ']
+
 
 def print_char(char):
     """Print only the given `char` without a newline"""
     print(char, end='')
 
 
+def get_input():
+    try:
+        move = raw_input("Choose a direction (Type `quit` to quit): ")
+    except NameError:
+        # Python3
+        move = input("Choose a direction (Type `quit` to quit): ")
+    return move
+
+
 def load_board(filename):
     """
     Given a filename of a text file, load the characters therein and return as
@@ -81,20 +95,24 @@ def main():
         print('Player inventory:')
         for item in player_inventory:
             print(item)
-        move = raw_input("Choose a direction (Type `quit` to quit): ")
+        move = get_input()
         if move == 'quit':
             return True
         if move == 'up':
-            if get_tile(board, player_x, player_y - 1) != '*':
+            # FIXME: Add a check that allows the player to pass through a door
+            # if they have a key.
+            if get_tile(board, player_x, player_y - 1) in NON_SOLIDS:
                 player_y -= 1
         if move == 'down':
-            if get_tile(board, player_x, player_y + 1) != '*':
+            # FIXME: Add a check that allows the player to pass through a door
+            # if they have a key.
+            if get_tile(board, player_x, player_y + 1) in NON_SOLIDS:
                 player_y += 1
         if move == 'left':
-            if get_tile(board, player_x - 1, player_y) != '*':
+            if get_tile(board, player_x - 1, player_y) in NON_SOLIDS:
                 player_x -= 1
         if move == 'right':
-            if get_tile(board, player_x + 1, player_y) != '*':
+            if get_tile(board, player_x + 1, player_y) in NON_SOLIDS:
                 player_x += 1
         if get_tile(board, player_x, player_y) == '^' and '^' not in player_inventory:
             board[player_y][player_x] = ' '

examples/game5.py

@@ -0,0 +1,127 @@
+#!/usr/bin/python
+"""
+This is a simple text based game that displays a board and obtains input from
+the command line.
+
+
+In this stage, the following is already implemented:
+    * Loads a text file as the playing board
+    * Displays the board and obtains input in a loop until a user types `quit`
+    * Displays the player on the board
+    * Moves the player on the board when the user types input such as "up"
+    * Prevents the player from walking through walls
+    * Makes it so the player can pick up the item (Item looks like ^)
+
+Implement the following:
+    * Make it so the player can use the key to open the door.
+"""
+from __future__ import print_function
+
+
+DEFAULT_BOARD = 'board.dat'
+PLAYER_X_START = 5
+PLAYER_Y_START = 5
+
+NON_SOLIDS = ['^', '$', 'o', ' ']
+
+
+def print_char(char):
+    """Print only the given `char` without a newline"""
+    print(char, end='')
+
+
+def get_input():
+    try:
+        move = raw_input("Choose a direction (Type `quit` to quit): ")
+    except NameError:
+        # Python3
+        move = input("Choose a direction (Type `quit` to quit): ")
+    return move
+
+
+def load_board(filename):
+    """
+    Given a filename of a text file, load the characters therein and return as
+    a list of character lists. E.g.:
+
+    A file containing:
+        xox
+        oxx
+        oxo
+
+    would return:
+        [
+            ['x', 'o', 'x'],
+            ['o', 'x', 'x'],
+            ['o', 'x', 'o'],
+        ]
+    """
+    board_file = open(filename)
+    board_tiles = []
+    for line in board_file.readlines():
+        board_tiles.append([char for char in line.strip()])
+    board_file.close()
+    return board_tiles
+
+
+def get_tile(board, x, y):
+    """
+    Returns the character for a give, `x` and `y` position of the given `board`
+    """
+    return board[y][x]
+
+
+def display(board, player_x, player_y, player_inventory):
+    """
+    Display the given `board` and the player at the position `player_x` and
+    `player_y`
+    """
+    for y, row in enumerate(board):
+        for x, tile in enumerate(row):
+            if x == player_x and y == player_y:
+                print_char('@')
+            else:
+                print_char(tile)
+        print_char('\n')
+
+
+def main():
+    board = load_board(DEFAULT_BOARD)
+    player_x = PLAYER_X_START
+    player_y = PLAYER_Y_START
+    player_inventory = []
+    while True:
+        display(board, player_x, player_y, player_inventory)
+        print('Player inventory:')
+        for item in player_inventory:
+            print(item)
+        move = get_input()
+        if move == 'quit':
+            return True
+        if move == 'up':
+            next_tile = get_tile(board, player_x, player_y - 1)
+            if next_tile in NON_SOLIDS or '^' in player_inventory:
+                player_y -= 1
+        if move == 'down':
+            next_tile = get_tile(board, player_x, player_y + 1)
+            if next_tile in NON_SOLIDS or '^' in player_inventory:
+                player_y += 1
+        if move == 'left':
+            next_tile = get_tile(board, player_x - 1, player_y)
+            if next_tile in NON_SOLIDS or '^' in player_inventory:
+                player_x -= 1
+        if move == 'right':
+            next_tile = get_tile(board, player_x + 1, player_y)
+            if next_tile in NON_SOLIDS or '^' in player_inventory:
+                player_x += 1
+        current_tile = get_tile(board, player_x, player_y)
+        if current_tile == '^' and '^' not in player_inventory:
+            board[player_y][player_x] = ' '
+            player_inventory.append('^')
+        if current_tile == '-' and '^' in player_inventory:
+            board[player_y][player_x] = ' '
+            player_inventory.remove('^')
+
+
+if __name__ == '__main__':
+    main()