Merge pull request #333 from rondutta/master

Adding a new file : Snake.py

Author: geekcomputers

snake.py

@@ -0,0 +1,80 @@
+# SNAKES GAME
+# Use ARROW KEYS to play, SPACE BAR for pausing/resuming and Esc Key for exiting
+# Original Author : Sanchit Gangwar
+# Modified by : Rayan Dutta
+# Minor changes made to keep the game working.
+
+import curses
+from curses import KEY_RIGHT, KEY_LEFT, KEY_UP, KEY_DOWN
+from random import randint
+
+
+curses.initscr()
+win = curses.newwin(20, 60, 0, 0)
+win.keypad(1)
+curses.noecho()
+curses.curs_set(0)
+win.border(0)
+win.nodelay(1)
+
+key = KEY_RIGHT                                                    # Initializing values
+score = 0
+
+snake = [[4,10], [4,9], [4,8]]                                     # Initial snake co-ordinates
+food = [10,20]                                                     # First food co-ordinates
+
+win.addch(food[0], food[1], '*')                                   # Prints or shows the food
+
+while key != 27:                                                   # While Esc key is not pressed
+    win.border(0)
+    win.addstr(0, 2, 'Score : ' + str(score) + ' ')                # Printing 'Score' and
+    win.addstr(0, 27, ' SNAKE ')                                   # 'SNAKE' strings
+    win.timeout(int(150 - (len(snake)/5 + len(snake)/10)%120))          # Increases the speed of Snake as its length increases
+
+    prevKey = key                                                  # Previous key pressed
+    event = win.getch()
+    key = key if event == -1 else event
+
+
+    if key == ord(' '):                                            # If SPACE BAR is pressed, wait for another
+        key = -1                                                   # one (Pause/Resume)
+        while key != ord(' '):
+            key = win.getch()
+        key = prevKey
+        continue
+
+    if key not in [KEY_LEFT, KEY_RIGHT, KEY_UP, KEY_DOWN, 27]:     # If an invalid key is pressed
+        key = prevKey
+
+    # Calculates the new coordinates of the head of the snake. NOTE: len(snake) increases.
+    # This is taken care of later at [1].
+    snake.insert(0, [snake[0][0] + (key == KEY_DOWN and 1) + (key == KEY_UP and -1), snake[0][1] + (key == KEY_LEFT and -1) + (key == KEY_RIGHT and 1)])
+
+    # If snake crosses the boundaries, make it enter from the other side
+    if snake[0][0] == 0: snake[0][0] = 18
+    if snake[0][1] == 0: snake[0][1] = 58
+    if snake[0][0] == 19: snake[0][0] = 1
+    if snake[0][1] == 59: snake[0][1] = 1
+
+    # Exit if snake crosses the boundaries (Uncomment to enable)
+    #if snake[0][0] == 0 or snake[0][0] == 19 or snake[0][1] == 0 or snake[0][1] == 59: break
+
+    # If snake runs over itself
+    if snake[0] in snake[1:]:
+        print('Game Over')
+        break;
+
+    if snake[0] == food:                                            # When snake eats the food
+        food = []
+        score += 1
+        while food == []:
+            food = [randint(1, 18), randint(1, 58)]                 # Calculating next food's coordinates
+            if food in snake: food = []
+        win.addch(food[0], food[1], '*')
+    else:
+        last = snake.pop()                                          # [1] If it does not eat the food, length decreases
+        win.addch(last[0], last[1], ' ')
+    win.addch(snake[0][0], snake[0][1], '#')
+
+curses.endwin()
+print("\nScore - " + str(score))