python - cmd console game; reduction of blinking -
i'm writing arcanoid game in python on windows console , bothers me annoying blinking after every iteration of "displaying" loop. have idea how reduce it? part of code:
#-*- coding: utf-8 -*- import time import os clear = lambda: os.system('cls') def gra(): koniec='0' while koniec!='1': in range(4): j in range(10): print '[___]', print '\n', in range(10): print '\n' in range(10): print ' ', print '~~~~~~~~~~' time.sleep(0.1) clear() gra()
there limit can do, gathering 1 big string , printing once between screen clears better number of small prints in loop. run following code , how better second half of program runs first half:
import time, os, random def display1(chars): os.system('cls') row in chars: print(''.join(row)) def display2(chars): os.system('cls') print('\n'.join(''.join(row) row in chars)) chars = [] in range(40): chars.append(["-"]*40) in range(100): r = random.randint(0,39) c = random.randint(0,39) chars[r][c] = "x" time.sleep(0.1) display1(chars) os.system('cls') time.sleep(1) chars = [] in range(40): chars.append(["-"]*40) in range(100): r = random.randint(0,39) c = random.randint(0,39) chars[r][c] = "x" time.sleep(0.1) display2(chars) on edit: can combine these ideas excellent idea of @gingerplusplus avoid cls. trick print large number of backspaces.
first -- write own version of cls:
def cls(n = 0): if n == 0: os.system('cls') else: print('\b'*n) the first time called -- pass 0 , clear screen.
the following function pushes character array command window in 1 big print , returns number of characters printed (since number of backspaces needed reposition cursor):
def display(chars): s = '\n'.join(''.join(row) row in chars) print(s) return len(s) used thus:
chars = [] in range(40): chars.append(["-"]*40) in range(100): n = 0 r = random.randint(0,39) c = random.randint(0,39) chars[r][c] = "x" time.sleep(0.1) cls(n) n = display(chars) when above code run, display changes smoothly virtually no flicker.
Comments
Post a Comment