import pygame
import sys
from pygame.locals import *

pygame.init()

screen = pygame.display.set_mode((700,700)) #Window Size
screen.fill((100,100,0))
pygame.display.update()
background = pygame.image.load("space.gif") # Background

class Character(pygame.sprite.Sprite):
    def __init__(self,position):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load('Tanks.png')
        self.rect = self.image.get_rect()
        self.right = False
        self.left = False
        self.mass = 60 #kg
        self.velocity = 0
        self.rect.center = position
        self.lives = 3

    def update(self,velocity,width):
        if self.right:
            velocity += 1
        if self.left:
            velocity -= 1
        self.rect.center+=velocity
        if self.rect.center >= width-24:
            self.rect.center=width-24
        if self.rect.center <=-24:
            self.rect.center=-24

def player_input():
    for event in pygame.event.get():
        if event.type == QUIT or event.type == KEYDOWN and event.key == K_ESCAPE:
            pygame.quit()
        if event.type == KEYDOWN and event.key == K_a:
            character.left=True
        if event.type == KEYDOWN and event.key == K_d:
            print 'd'
            character.right=True
        if event.type == KEYUP and event.key == K_a:
            character.left=False
        if event.type == KEYUP and event.key == K_d:
            character.right=False
        if event.type == MOUSEBUTTONDOWN and event.button == 1: #left
            print 'check'
        if event.type == MOUSEBUTTONDOWN and event.button == 3: #right
            print 'rcheck'

character = Character((450,450))

while True:
    player_input()
    screen.blit(character.image,character.rect.center)
    pygame.display.update()
    pygame.time.delay(15)