from block import Block, BlockAir, BlockStone
import perlin
from chunk import Chunk, CHUNK_HEIGHT, CHUNK_WIDTH

class World:
    def __init__(self, x: int, y: int):
        self.chunks = {}
        self.old_x = -1
        self.old_y = -1
        self.update_chunks(x, y)
        pass

    def update_chunks(self, x: int, y: int):
        x //= CHUNK_WIDTH
        y //= CHUNK_HEIGHT
        if self.old_x == x and self.old_y == y: return
        print("Refresh chunks")

        self.chunks = {}
        
        for i in range(x - 1, x + 2):
            for j in range(y - 1, y + 2):
                self.chunks[f"{i}:{j}"] = Chunk(i, j)
        
        self.old_x = x
        self.old_y = y
    
    def get_block(self, x: int, y: int) -> Block:
        return self.chunks[f"{x // CHUNK_WIDTH}:{y // CHUNK_HEIGHT}"].get(x % CHUNK_WIDTH, y % CHUNK_HEIGHT)