import pygame, sys
from pygame.locals import *

pygame.init()
vec = pygame.math.Vector2

Height = 450
Width = 400
ACC = 0.5
FRIC = -0.12
FPS = 60

FramePerSec = pygame.time.Clock()


displaysurface = pygame.display.set_mode((Width, Height))
pygame.display.set_caption("Game")

class Player(pygame.sprite.Sprite):
    def __init__ (self):
        super(). __init__()
        self.surf = pygame.Surface((30,30))
        self.surf.fill((128,255,40))
        self.rect = self.surf.get_rect(center = (10,420))

        self.pos = vec((10,285))
        self.vel = vec(0,0)
        self.acc = vec(0,0)
    
    def move(self):
        self.acc = vec(0,0)

        pressed_keys = pygame.key.get_pressed()

        if pressed_keys[K_LEFT]:
            self.acc.x = -ACC
        if pressed_keys[K_RIGHT]:
            self.acc.x = ACC


        self.acc.x += self.vel.x * FRIC
        self.vel += self.acc
        self.pos += self.vel + 0.5 * self.acc

        if self.pos.x > Width:
            self.pos.x = 0
        if self.pos.x < 0:
            self.pos.x = Width

        self.rect.midbottom = self.pos




class platform(pygame.sprite.Sprite):
    def __init__(self):
        super().__init__()
        self.surf = pygame.Surface((Width, 20))
        self.surf.fill((255,0,0))
        self.rect= self.surf.get_rect(center = (Width/2, Height))


PT1 = platform()
P1 = Player()

all_sprites = pygame.sprite.Group()
all_sprites.add(PT1)
all_sprites.add(P1)


while True:
    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
            sys.exit()

    displaysurface.fill((0,0,0))

    P1.move()
    for entitiy in all_sprites:
        displaysurface.blit(entitiy.surf, entitiy.rect)

    for entity in all_sprites:
        displaysurface.blit(entity.surf, entity.rect)

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