def on_on_chat():
    blocks.fill(SNOW, world(-11, -61, -31), world(11, -55, 6), FillOperation.HOLLOW)
    blocks.fill(PACKED_ICE, world(-10, -61, -30), world(10, -55, 5), FillOperation.HOLLOW)
    blocks.fill(AIR, world(-11, -55, -31), world(11, -55, 6), FillOperation.REPLACE)
    blocks.fill(SEA_LANTERN, world(-9, -56, -10), world(9, -56, 4), FillOperation.REPLACE)
    blocks.fill(GLASS, world(-9, -60, -10), world(9, -57, -10), FillOperation.REPLACE)
    blocks.fill(SNOW, world(-10, -60, -11), world(10, -56, -11), FillOperation.REPLACE)
    blocks.fill(WHITE_TERRACOTTA, world(-9, -61, -9),world(9, -61, -7), FillOperation.REPLACE)
    blocks.fill(OBSIDIAN, world(-9, -62, -15), world(9, -61, -13), FillOperation.REPLACE)
    blocks.fill(BRICKS, world(-9, -61, -20), world(9, -61, -22), FillOperation.REPLACE)
    blocks.fill(LAVA, world(-9, -62, -19), world(9, -61, -16), FillOperation.REPLACE)

    ustawienia()
    moby()

player.on_chat("start", on_on_chat)

def ekwipunek():
    player.execute("/clear")
    mobs.give(mobs.target(NEAREST_PLAYER), DIAMOND_SWORD, 1)
    mobs.give(mobs.target(NEAREST_PLAYER), DIAMOND_CHESTPLATE, 1)
    mobs.give(mobs.target(NEAREST_PLAYER), DIAMOND_HELMET, 1)
    mobs.give(mobs.target(NEAREST_PLAYER), DIAMOND_LEGGINGS, 1)
    
player.on_chat("eq", ekwipunek)

def ustawienia():
    player.teleport(world(0, -60, 3))
    gameplay.time_set(gameplay.time(DAY))
    gameplay.set_difficulty(NORMAL)
    gameplay.set_game_mode(SURVIVAL, mobs.target(NEAREST_PLAYER))
    agent.teleport_to_player()

    gameplay.title(mobs.target(NEAREST_PLAYER), "Gra rozpoczęta!", "pomóż nam ocalić lodową krainę przed złą wiedźmą")

def moby():
    for i in range(5):
        mobs.spawn(POLAR_BEAR, world(0, -60, -5))
    for i in range(3):
        mobs.spawn(SKELETON, world(0, -60, -5))

def zniszczonoSzklo():
    agent.teleport(world(0, -60, -15), NORTH)
blocks.on_block_broken(GLASS, zniszczonoSzklo)

def most():
    agent.teleport(world(0, -60, -15), NORTH)
    agent.set_slot(1)
    agent.set_item(POLISHED_ANDESITE, 64, 1)
    for i in range(4):
        agent.move(FORWARD, 1)
        agent.place(DOWN)
player.on_chat("buduj", most)

def wygrana():
    gameplay.title(mobs.target(NEAREST_PLAYER), "Udało Ci się", "Ocaliłeś mroźną krainę")
    gameplay.set_game_mode(CREATIVE, mobs.target(NEAREST_PLAYER))
    gameplay.set_weather(CLEAR)
    gameplay.set_difficulty(PEACEFUL)
    gameplay.time_set(gameplay.time(DAY))
mobs.on_mob_killed(WITCH, wygrana)

while True:
    if blocks.test_for_block(WHITE_TERRACOTTA, pos(0, -1, 0)):
        mobs.give(mobs.target(NEAREST_PLAYER), DIAMOND_PICKAXE, 1)
        blocks.fill(PACKED_ICE, world(-9, -61, -9),world(9, -61, -7), FillOperation.REPLACE)
        gameplay.title(mobs.target(NEAREST_PLAYER), "Zniszcz szklaną ścianę", "wydostań się z jaskini")
    elif blocks.test_for_block(OBSIDIAN, pos(0, -1, 0)):
        gameplay.title(mobs.target(NEAREST_PLAYER), "Wybuduj most", "użyj do tego agenta")
        blocks.fill(PACKED_ICE, world(-9, -62, -15), world(9, -61, -13), FillOperation.HOLLOW)
    elif blocks.test_for_block(BRICKS, pos(0, -1, 0)):
        gameplay.title(mobs.target(NEAREST_PLAYER),"Pokonaj Wiedźmę", "odkryj tajemnicę śniegu")
        gameplay.time_set(gameplay.time(NIGHT))
        mobs.spawn(WITCH, world(0, -60, -25))
        for i in range(10):
            mobs.spawn(SKELETON, world(0, -60, -25))
        blocks.fill(PACKED_ICE, world(-9, -61, -20), world(9, -61, -22), FillOperation.REPLACE)