Add partial exercise 10

.gitignore

@@ -1,3 +1,4 @@
 __pycache__
 
-.vscode
+.vscode
+.vim

Exercise 10/1.py

@@ -0,0 +1,17 @@
+from math import floor
+
+recursive_sum = lambda n: 1 if n == 1 else n + recursive_sum(n - 1)
+
+merge_sum = lambda lst: lst[0] if len(lst) == 1 else merge_sum(lst[0:floor(len(
+  lst) / 2)]) + merge_sum(lst[floor(len(lst) / 2):len(lst)])
+
+
+def find_smallest_element(lst):
+  if len(lst) == 1: return lst[0]
+  smallest_element = find_smallest_element(lst[1:])
+  return lst[0] if lst[0] < smallest_element else smallest_element
+
+
+def binary_search(numbers, element):
+
+  return -float('inf')

Exercise 10/2.py

@@ -0,0 +1,7 @@
+from math import sin
+import matplotlib.pyplot as plt
+
+x_verdier = [x/10 for x in range(301)]
+y_verdier = [sin(x) for x in x_verdier]
+plt.plot(x_verdier, y_verdier, c='r')
+plt.show()

Exercise 10/chess/board.py

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+from os import system
+
+from piece import Piece
+
+
+class Board:
+
+  def __init__(self):
+    self.boardArray = [
+    # [],
+      [Piece('p', 'black') for _ in range(8)],
+      [Piece('p', 'black') for _ in range(8)],
+      *[[None for _ in range(8)] for _ in range(4)],
+      [Piece('p', 'white') for _ in range(8)],
+      [Piece('p', 'white') for _ in range(8)],
+    # [],
+    ]
+
+  def draw(
+    self,
+    config={
+      'highlightedContent': [],
+      'highlightEscapeCodes': ('\033[32;5;7m', '\033[0m'),
+      'highlightedBoxes': [],
+      'center': False
+    }
+  ) -> str:
+    """Returns a string representing the board
+
+    config options:
+      highlightedContent: [(x,y)] - Pieces to color
+      highlightEscapeCodes: (str, str) - Terminal escape codes to color highlightedContent with
+      highlightedBoxes: [(x,y)] - Boxes to make bold
+      center: Bool - Whether or not to indent the board into the center
+    """
+
+    def fillConfigDefaultValue(key, defaultValue):
+      if key not in config:
+        config[key] = defaultValue
+
+    fillConfigDefaultValue('highlightedContent', [])
+    fillConfigDefaultValue('highlightedBoxes', [])
+    fillConfigDefaultValue('highlightEscapeCodes', ('\033[32;5;7m', '\033[0m'))
+    fillConfigDefaultValue('center', False)
+
+    # Draw general outline
+    stringArray = [list('┼' + '───┼' * 8)] + [[None] for _ in range(8 * 2)]
+    for y, row in enumerate(self.boardArray):
+      for x, column in enumerate(row):
+        stringArray[2 * y + 1][4 * x] = '│'
+        stringArray[2 * y + 2][4 * x] = '┼'
+
+        stringArray[2 * y + 1] += list(
+          ' {} │'.format(str(self.boardArray[y][x]) if self.boardArray[y][x] != None else ' '))
+        stringArray[2 * y + 2] += list('───┼')
+
+    # Overwrite corners
+    stringArray[0][0] = '╭'
+    stringArray[0][-1] = '╮'
+    stringArray[-1][0] = '╰'
+    stringArray[-1][-1] = '╯'
+
+    # Overwrite T-junctions
+    for i in range(int(len(stringArray[0]) / 4) - 1):
+      stringArray[0][i * 4 + 4] = '┬'
+      stringArray[-1][i * 4 + 4] = '┴'
+    for i in range(int(len(stringArray) / 2) - 1):
+      stringArray[i * 2 + 2][0] = '├'
+      stringArray[i * 2 + 2][-1] = '┤'
+
+    def highlightContent(x, y):
+      """highlight contents of a piece with xterm-256colors modifiers"""
+      stringArray[y * 2 +
+                  1][x * 4 +
+                     1] = config['highlightEscapeCodes'][0] + stringArray[y * 2 + 1][x * 4 + 1]
+      stringArray[y * 2 + 1][x * 4 + 3] += config['highlightEscapeCodes'][1]
+
+    def highlightBox(x, y):
+      """Make box around a piece bold"""
+
+      characterMap = {
+        '─': '═',
+        '│': '║',
+        '┼': '╬',
+        '╰': '╚',
+        '╯': '╝',
+        '╭': '╔',
+        '╮': '╗',
+        '├': '╠',
+        '┴': '╩',
+        '┤': '╣',
+        '┬': '╦',
+      }
+
+      pointsToChange = \
+      [(x * 4 + 0, y * 2 + i) for i in range(3)] + \
+      [(x * 4 + 4, y * 2 + i) for i in range(3)] + \
+      [(x * 4 + i, y * 2 + 0) for i in range(1,4)] + \
+      [(x * 4 + i, y * 2 + 2) for i in range(1,4)]
+
+      for x, y in pointsToChange:
+        stringArray[y][x] = characterMap[
+          stringArray[y][x]] if stringArray[y][x] in characterMap else stringArray[y][x]
+
+    for x, y in config['highlightedBoxes']:
+      highlightBox(x, y)
+    for x, y in config['highlightedContent']:
+      highlightContent(x, y)
+
+    # TODO: Center board
+
+    return '\n'.join([''.join(line) for line in stringArray])
+
+  def selectPiece(self, player) -> tuple:
+    """Lets the user select a piece from a graphic board"""
+
+    x, y = 0, 0
+    while True:
+      system('clear')
+      print(player.name, '\n')
+      print(self.draw({'highlightedBoxes': [(x, y)]}), '\n')
+
+      key = input(f"      W E\n    A S D  <- Enter : ")[0]
+      if key in ['s', 'j'] and y != 7: y += 1
+      elif key in ['w', 'k'] and y != 0: y -= 1
+      elif key in ['d', 'l'] and x != 7: x += 1
+      elif key in ['a', 'h'] and x != 0: x -= 1
+      elif key == 'e': return (x, y)
+
+  def getPieceAt(self, x, y) -> Piece:
+    return self.boardArray[y][x]

Exercise 10/chess/chess.py

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+from board import Board
+from os import system
+from dataclasses import dataclass
+
+@dataclass
+class Player:
+  name: str
+  color: str
+
+class Chess:
+
+  def __init__(self, players):
+    self.players = players
+
+  def update(self):
+    system('clear')
+
+  def loop(self):
+    while True:
+      self.update()
+
+
+if __name__ == "__main__":
+
+  players = (
+    Player('Spiller 1', 'white'),
+    Player('Spiller 2', 'black'),
+  )
+
+  # game = Chess(('Spiller 1', 'Spiller 2'))
+  # game.loop()
+  board = Board()
+  print(board.selectPiece(players[0]))

Exercise 10/chess/piece.py

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+from typing import Iterable, Callable
+from itertools import product
+
+
+class Piece:
+
+  def __init__(self, type, color):
+    self.type = type
+    self.color = color
+
+  def __str__(self):
+    return self.type.upper() if self.color == 'white' else self.type
+
+  @staticmethod
+  def possibleMoves(x, y, board) -> Callable[[int, int], Iterable[tuple]]:
+    piece = board.getPieceAt(x, y)
+    moves = []
+
+    pieceIsEnemyColor = lambda pieceToCheck: pieceToCheck != None and pieceToCheck.color != piece.color
+    pieceIsEmpty = lambda pieceToCheck: pieceToCheck == None
+    pieceIsEmptyOrEnemyColor = lambda pieceToCheck: pieceToCheck == None or pieceToCheck.color != piece.color
+
+    def addMoveIfTrue(xOffset, yOffset, condition):
+      if condition(board.getPieceAt(x + xOffset, y + yOffset)):
+        moves.append((x + xOffset, y + yOffset))
+        return True
+      return False
+
+    def addWhileInsideBoard(direction):
+      localX = x
+      localY = y
+      while localX not in [0, 7] and localY not in [0, 7]:
+        localX += direction[0]
+        localY += direction[1]
+        if board.getPieceAt(localX, localY) == None:
+          moves.append((localX, localY))
+        else:
+          if board.getPieceAt(localX, localY).color != piece.color:
+            moves.append((localX, localY))
+          return
+
+    if piece.type == 'p':
+      addMoveIfTrue(1, 1, pieceIsEnemyColor)
+      addMoveIfTrue(-1, 1, pieceIsEnemyColor)
+      if addMoveIfTrue(0, 1, pieceIsEmpty):
+        addMoveIfTrue(0, 2, lambda pieceToCheck: pieceToCheck == None and piece.moves == 0)
+
+    elif piece.type == 'n':
+      positions = [(-2, -1), (-2, 1), (-1, -2), (-1, 2), (1, -2), (1, 2), (2, -1), (2, 1)]
+      for position in positions:
+        addMoveIfTrue(*position, pieceIsEmptyOrEnemyColor)
+
+    elif piece.type == 'k':
+      positions = list(product([-1, 0, 1], repeat=2))
+      positions.remove((0, 0))
+      for position in positions:
+        addMoveIfTrue(*position, pieceIsEmptyOrEnemyColor)
+      # TODO: Check moves for check and remove the bad ones
+
+    elif piece.type == 'r':
+      for direction in product([0, 1], repeat=2):
+        addWhileInsideBoard(direction)
+
+    elif piece.type == 'b':
+      for direction in product([-1, 1], repeat=2):
+        addWhileInsideBoard(direction)
+
+    elif piece.type == 'q':
+      directions = list(product([-1, 0, 1], repeat=2))
+      directions.remove((0, 0))
+      for direction in directions:
+        addWhileInsideBoard(direction)
+
+    return moves