from typing import Dict
import pygame, random
#import pygame.mixer
pygame.init()
#all the variables
displaysize, playersize = (1000,750), (100,100)
level = 1
defaultborders = True
playerX, playerY = 250, 250
oldX, oldY = playerX, playerY
playerXc, playerYc = 0, 0
randomblock = pygame.Surface((100, 100))
randomblock.fill((0, 0, 255))
blocks = [ #(x, y, w, h)
    (420, 400, 100, 100)
]
#all the pygame setups and shit
screen = pygame.display.set_mode(displaysize)
player = pygame.image.load('player.png')
player = pygame.transform.scale(player, playersize)
player_rect = player.get_rect()
#defines borders
def def_borders(x,y, b1, b2, b3, b4):
    if x < b1:
        x = 1
    elif y > b2:
        y = 649
    if x > b3:
        x = 899
    elif y < b4:
        y = 1
    return x, y

def check_collision(x1, y1, w1, h1, x2, y2, w2, h2):
    """
    Returns True if the two rectangles overlap.
    Works like pygame.Rect.colliderect.
    
    x1, y1 = top-left of first rectangle
    w1, h1 = width/height of first rectangle
    x2, y2 = top-left of second rectangle
    w2, h2 = width/height of second rectangle
    """
    return (x1 < x2 + w2 and
            x1 + w1 > x2 and
            y1 < y2 + h2 and
            y1 + h1 > y2)
     
pygame.display.set_caption("UNDERTALE", icontitle="Inspired by Toby Fox <3")
pygame.display.set_icon("icon.png")
paused = False
running = True
while running == True:
    oldX, oldY = playerX, playerY
    screen.fill((0, 0, 0))
    playerY += playerYc
    playerX += playerXc
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_ESCAPE:
                pygame.quit()
            if event.key == pygame.K_SPACE:
                print("playerX="+str(playerX)+", playerY="+str(playerY))
            if event.key == pygame.K_LEFT or event.key == pygame.K_a:
                #if randomblock not in player.colliderect():
                playerXc = -1
            if event.key == pygame.K_RIGHT or event.key == pygame.K_d:
                playerXc = 1
            if event.key == pygame.K_UP or event.key == pygame.K_w:
                playerYc = -1
            if event.key == pygame.K_DOWN or event.key == pygame.K_s:
                playerYc = 1
        if event.type == pygame.KEYUP:
            if event.key == pygame.K_LEFT or event.key == pygame.K_a:
                playerXc = 0
            if event.key == pygame.K_RIGHT or event.key == pygame.K_d:
                playerXc = 0
            if event.key == pygame.K_UP or event.key == pygame.K_w:
                playerYc = 0
            if event.key == pygame.K_DOWN or event.key == pygame.K_s:
                playerYc = 0
    if defaultborders:
        playerX, playerY = def_borders(playerX, playerY, 0, 650, 900, 0)
    for bx, by, bw, bh in blocks:
        if check_collision(playerX, playerY, 100, 100, bx, by, bw, bh):
            playerX, playerY = oldX, oldY
            break  # stop checking after first collision

    screen.blit(randomblock, (420, 400)) 
    screen.blit(player, (playerX, playerY))
    #print()
    clock = pygame.time.Clock()
    pygame.display.update()