import pygame

class NPC:
    def __init__(self, x, y, dx, dy):
        self.x = x
        self.y = y
        self.dx = dx
        self.dy = dy
        self.bounces = 0
        self.rect = pygame.Rect(0, 0, 0, 0)

    def update(self, player):
        self.x += self.dx * (self.bounces+1)
        self.y += self.dy * (self.bounces+1)

        if self.rect.colliderect(player.rect):
          	self.dy = -self.dy
            self.dx = -self.dx

        if self.y > 400 or self.y < 0:
            self.dy = -self.dy
            self.bounces += 1

        if self.x > 600 or self.x < 0:
            self.dx = -self.dx
            self.bounces += 1

        if self.bounces > 10:
            self.bounces = 0

    def draw(self, surface):
        self.rect = pygame.draw.rect(surface, (255,0,0), (self.x, self.y, 20, 20))

#=================================================

class Paddle:
	def __init__(self, x,y, speed, window):
      	self.x = x
      	self.y = y
    	self.speed = speed
    	self.window = window
    	self.right = False
    	self.left = False
    	self.points = 0
    	self.rect = pygame.Rect(0, 0, 0, 0)

	def draw(self, surface):
      	self.rect = pygame.draw.rect(surface, (0,0,255), (self.x, self.y, 100, 20))

    def update(self):
    	if self.right and self.x < self.window[0] - 100:
    		self.x += self.speed
        elif self.left and self.x > 0:
          	self.x -= self.speed


#===============================================

  def main():
    pygame.init()
    FPSCLOCK = pygame.time.Clock()
    DISPLAYSURF = pygame.display.set_mode((WINWIDTH, WINHEIGHT))
    pygame.display.set_caption('Juego 1')

    BFONT = pygame.font.Font('freesansbold.ttf', 24)
    SFONT = pygame.font.Font('freesansbold.ttf', 12)

    npcs = [NPC(0, 0, 5, 10), NPC(20, 0, 5, 10), NPC(0, 20, 1, 10), NPC(190, 0, 8, 2)]
    player = Paddle(300, 380, 15, (WINWIDTH, WINHEIGHT))

    while True:
        DISPLAYSURF.fill(WHITE)

        player.update()
        player.draw(DISPLAYSURF)

        for npc in npcs:
            npc.draw(DISPLAYSURF)
            npc.update(player)

        for event in pygame.event.get():  # event handling loop
            if event.type == QUIT:
                terminate()
            elif event.type == KEYDOWN:
                if event.key == K_RIGHT:
                    player.right = True
                elif event.key == K_LEFT:
                    player.left = True
            elif event.type == KEYUP:
                if event.key == K_RIGHT:
                    player.right = False
                elif event.key == K_LEFT:
                    player.left = False

        pygame.display.update()
        FPSCLOCK.tick(FPS)