diff options
Diffstat (limited to 'Tools/demo/life.py')
| -rwxr-xr-x | Tools/demo/life.py | 89 |
1 files changed, 50 insertions, 39 deletions
diff --git a/Tools/demo/life.py b/Tools/demo/life.py index dfb9ab87c2..fc4cb4952d 100755 --- a/Tools/demo/life.py +++ b/Tools/demo/life.py @@ -46,38 +46,38 @@ class LifeBoard: self.state = {} self.scr = scr Y, X = self.scr.getmaxyx() - self.X, self.Y = X-2, Y-2-1 + self.X, self.Y = X - 2, Y - 2 - 1 self.char = char self.scr.clear() # Draw a border around the board - border_line = '+'+(self.X*'-')+'+' + border_line = '+' + (self.X * '-') + '+' self.scr.addstr(0, 0, border_line) - self.scr.addstr(self.Y+1, 0, border_line) + self.scr.addstr(self.Y + 1, 0, border_line) for y in range(0, self.Y): - self.scr.addstr(1+y, 0, '|') - self.scr.addstr(1+y, self.X+1, '|') + self.scr.addstr(1 + y, 0, '|') + self.scr.addstr(1 + y, self.X + 1, '|') self.scr.refresh() def set(self, y, x): """Set a cell to the live state""" - if x<0 or self.X<=x or y<0 or self.Y<=y: - raise ValueError("Coordinates out of range %i,%i"% (y, x)) - self.state[x,y] = 1 + if x < 0 or self.X <= x or y < 0 or self.Y <= y: + raise ValueError("Coordinates out of range %i,%i" % (y, x)) + self.state[x, y] = 1 def toggle(self, y, x): """Toggle a cell's state between live and dead""" if x < 0 or self.X <= x or y < 0 or self.Y <= y: - raise ValueError("Coordinates out of range %i,%i"% (y, x)) + raise ValueError("Coordinates out of range %i,%i" % (y, x)) if (x, y) in self.state: del self.state[x, y] - self.scr.addch(y+1, x+1, ' ') + self.scr.addch(y + 1, x + 1, ' ') else: self.state[x, y] = 1 if curses.has_colors(): # Let's pick a random color! self.scr.attrset(curses.color_pair(random.randrange(1, 7))) - self.scr.addch(y+1, x+1, self.char) + self.scr.addch(y + 1, x + 1, self.char) self.scr.attrset(0) self.scr.refresh() @@ -88,43 +88,46 @@ class LifeBoard: def display(self, update_board=True): """Display the whole board, optionally computing one generation""" - M,N = self.X, self.Y + M, N = self.X, self.Y if not update_board: for i in range(0, M): for j in range(0, N): - if (i,j) in self.state: - self.scr.addch(j+1, i+1, self.char) + if (i, j) in self.state: + self.scr.addch(j + 1, i + 1, self.char) else: - self.scr.addch(j+1, i+1, ' ') + self.scr.addch(j + 1, i + 1, ' ') self.scr.refresh() return d = {} self.boring = 1 for i in range(0, M): - L = range( max(0, i-1), min(M, i+2) ) + L = range(max(0, i - 1), min(M, i + 2)) for j in range(0, N): s = 0 - live = (i,j) in self.state - for k in range( max(0, j-1), min(N, j+2) ): + live = (i, j) in self.state + for k in range(max(0, j - 1), min(N, j + 2)): for l in L: - if (l,k) in self.state: + if (l, k) in self.state: s += 1 s -= live if s == 3: # Birth - d[i,j] = 1 + d[i, j] = 1 if curses.has_colors(): # Let's pick a random color! self.scr.attrset(curses.color_pair( random.randrange(1, 7))) - self.scr.addch(j+1, i+1, self.char) + self.scr.addch(j + 1, i + 1, self.char) self.scr.attrset(0) - if not live: self.boring = 0 - elif s == 2 and live: d[i,j] = 1 # Survival + if not live: + self.boring = 0 + elif s == 2 and live: + # Survival + d[i, j] = 1 elif live: # Death - self.scr.addch(j+1, i+1, ' ') + self.scr.addch(j + 1, i + 1, ' ') self.boring = 0 self.state = d self.scr.refresh() @@ -135,16 +138,17 @@ class LifeBoard: for i in range(0, self.X): for j in range(0, self.Y): if random.random() > 0.5: - self.set(j,i) + self.set(j, i) def erase_menu(stdscr, menu_y): "Clear the space where the menu resides" stdscr.move(menu_y, 0) stdscr.clrtoeol() - stdscr.move(menu_y+1, 0) + stdscr.move(menu_y + 1, 0) stdscr.clrtoeol() + def display_menu(stdscr, menu_y): "Display the menu of possible keystroke commands" erase_menu(stdscr, menu_y) @@ -154,15 +158,16 @@ def display_menu(stdscr, menu_y): stdscr.attrset(curses.color_pair(1)) stdscr.addstr(menu_y, 4, 'Use the cursor keys to move, and space or Enter to toggle a cell.') - stdscr.addstr(menu_y+1, 4, + stdscr.addstr(menu_y + 1, 4, 'E)rase the board, R)andom fill, S)tep once or C)ontinuously, Q)uit') stdscr.attrset(0) + def keyloop(stdscr): # Clear the screen and display the menu of keys stdscr.clear() stdscr_y, stdscr_x = stdscr.getmaxyx() - menu_y = (stdscr_y-3)-1 + menu_y = (stdscr_y - 3) - 1 display_menu(stdscr, menu_y) # If color, then initialize the color pairs @@ -179,16 +184,16 @@ def keyloop(stdscr): curses.mousemask(curses.BUTTON1_CLICKED) # Allocate a subwindow for the Life board and create the board object - subwin = stdscr.subwin(stdscr_y-3, stdscr_x, 0, 0) + subwin = stdscr.subwin(stdscr_y - 3, stdscr_x, 0, 0) board = LifeBoard(subwin, char=ord('*')) board.display(update_board=False) # xpos, ypos are the cursor's position - xpos, ypos = board.X//2, board.Y//2 + xpos, ypos = board.X // 2, board.Y // 2 # Main loop: while True: - stdscr.move(1+ypos, 1+xpos) # Move the cursor + stdscr.move(1 + ypos, 1 + xpos) # Move the cursor c = stdscr.getch() # Get a keystroke if 0 < c < 256: c = chr(c) @@ -224,15 +229,21 @@ def keyloop(stdscr): board.display(update_board=False) elif c in 'Ss': board.display() - else: pass # Ignore incorrect keys - elif c == curses.KEY_UP and ypos > 0: ypos -= 1 - elif c == curses.KEY_DOWN and ypos < board.Y-1: ypos += 1 - elif c == curses.KEY_LEFT and xpos > 0: xpos -= 1 - elif c == curses.KEY_RIGHT and xpos < board.X-1: xpos += 1 + else: + # Ignore incorrect keys + pass + elif c == curses.KEY_UP and ypos > 0: + ypos -= 1 + elif c == curses.KEY_DOWN and ypos + 1 < board.Y: + ypos += 1 + elif c == curses.KEY_LEFT and xpos > 0: + xpos -= 1 + elif c == curses.KEY_RIGHT and xpos + 1 < board.X: + xpos += 1 elif c == curses.KEY_MOUSE: mouse_id, mouse_x, mouse_y, mouse_z, button_state = curses.getmouse() - if (mouse_x > 0 and mouse_x < board.X+1 and - mouse_y > 0 and mouse_y < board.Y+1): + if (mouse_x > 0 and mouse_x < board.X + 1 and + mouse_y > 0 and mouse_y < board.Y + 1): xpos = mouse_x - 1 ypos = mouse_y - 1 board.toggle(ypos, xpos) @@ -245,7 +256,7 @@ def keyloop(stdscr): def main(stdscr): - keyloop(stdscr) # Enter the main loop + keyloop(stdscr) # Enter the main loop if __name__ == '__main__': curses.wrapper(main) |