import tkinter as tk
from PIL import Image,ImageTk
import random
import threading
import time
from world import World

RENDER_WIDTH, RENDER_HEIGHT = 640 // 32 + 1, 480 // 32 + 1
FPS = 20

class Camera:
    def __init__(self, x: int, y: int):
        self.x: int = x
        self.y: int = y

class Renderer:
    def render(self):
        offset_x, offset_y = self.camera.x % 32, self.camera.y % 32
        index = 0
        self.world.update_chunks(self.camera.x // 32, self.camera.y // 32)
        for tile in self.tiles:
            self.canvas.moveto(tile, 32 * (index % RENDER_WIDTH)- offset_x, 32 * (index // RENDER_WIDTH) - offset_y)
            self.canvas.itemconfig(tile, image=self.sprites[self.world.get_block(
                self.camera.x // 32 + index % RENDER_WIDTH,
                self.camera.y // 32 + index // RENDER_WIDTH
            ).id])
            index += 1
        pass

    def update_thread(self):
        while self.running:
            self.render()
            self.camera.x += 8
            time.sleep(1 / FPS)
        pass

    def __init__(self):
        self.running = True
        self.window = tk.Tk()
        self.window.title("MC 2D")
        self.window.geometry("640x480")

        self.camera = Camera(90 * 32, 90 * 32)
        self.world = World(self.camera.x // 32, self.camera.y // 32)

        self.sprites = [
            "sprites/air.png",
            "sprites/stone.png",
            "sprites/dirt.png",
            "sprites/grass.png"
        ]

        self.sprites = [
            ImageTk.PhotoImage(Image.open(sprite)) for sprite in self.sprites
        ]

        self.canvas = tk.Canvas(self.window, width=640, height=480, background="white")
        self.canvas.pack()

        self.tiles = [
            self.canvas.create_image(32 * (i % RENDER_WIDTH) - 16, 32 * (i // RENDER_WIDTH) - 16, anchor="nw", image=self.sprites[random.randint(0, len(self.sprites) - 1)])
            for i in range(RENDER_WIDTH * RENDER_HEIGHT)
        ]

        self.tupdate = threading.Thread(target=self.update_thread)
        self.tupdate.start()

        self.window.mainloop()
        self.running = False