obstacle

# After starting the program get the player's coordinates which will be used in the entire project
# We will only update the Z coordinate of the player to be able to correctly add stages
position=player.position()
x=position.get_value(Axis.X)
y=position.get_value(Axis.Y)
z=position.get_value(Axis.Z)

#function creating the first fragment of the course
def course():

    #create the shape of the course from bedrock
    blocks.fill(BEDROCK, world(x-10,y-1,z-2),world(x+10,y+10,z+35),FillOperation.HOLLOW)
    #the line lauching stage 1
    blocks.fill(SEA_LANTERN, world(x-9,y-1,z+3),world(x+9,y-1,z+5))
    #gameplay.set_game_mode(SURVIVAL, mobs.target(NEAREST_PLAYER))

player.on_chat("start", course)

def stage1(z):
    player.say("STAGE 1")

    #clearing the horizontal block line to protect player from loading the level multiple times
    blocks.fill(BEDROCK, world(x-10,y-1,z-5),world(x+10,y-1,z+5))
    #adding a barrier behind the player
    blocks.fill(BEDROCK, world(x-10,y,z-3),world(x+10,y+10,z-1))

    #the line loading the next level
    blocks.fill(GOLD_BLOCK, world(x-9,y-1,z+25),world(x+9,y-1,z+27))
    #obstacles of the first stage
    blocks.fill(IRON_BARS, world(x-9,y-1,z+3),world(x+9,y-1,z+20))
    blocks.fill(LAVA, world(x-9,y-2,z+3),world(x+9,y-2,z+20))
    while True:
        if blocks.test_for_block(IRON_BARS, pos(0, -1, 0)):

            mobs.give(mobs.target(NEAREST_PLAYER), DIAMOND_AXE, 1)
            for i in range(6):

                mobs.spawn(CREEPER, randpos(world(x-8,y+1,z+3), world(x+8,y+1,z+20)))
            #break finishes the loop that contains it.
            #the program moves to the statement right after the loop

            break

def stage2(z):
    player.say("STAGE 2")
    #adding the next course segment

    blocks.fill(BEDROCK, world(x-10,y-1,z-2),world(x+10,y+10,z+30),FillOperation.HOLLOW)
    blocks.fill(BEDROCK, world(x-10,y-1,z-5),world(x+10,y-1,z+5))
    blocks.fill(BEDROCK, world(x-10,y,z-3),world(x+10,y+10,z-1))

    blocks.fill(GLASS, world(x-9,y-1,z+25),world(x+9,y-1,z+27))


    for i in range(11):

        mobs.spawn(ZOMBIE, randpos(world(x-8,y+3,z+3), world(x+8,y+3,z+20)))

def stage3(z):
    player.say("STAGE 3")
    #adding another segment
    blocks.fill(BEDROCK, world(x-10,y-1,z-2),world(x+10,y+10,z+30),FillOperation.HOLLOW)

    #clearing the horizontal line
    blocks.fill(BEDROCK, world(x-10,y-1,z-5),world(x+10,y-1,z+5))
    #adding a barrier behind the player
    blocks.fill(BEDROCK, world(x-10,y,z-3),world(x+10,y+10,z-1))
    #adding the line that will load the next stage
    blocks.fill(COBBLESTONE, world(x-9,y-1,z+25),world(x+9,y-1,z+27))
    #stage 3 obstacles
    blocks.fill(DIAMOND_BLOCK, world(x-9,y-1,z+3),world(x+9,y-1,z+20))
    while True:
        if blocks.test_for_block(DIAMOND_BLOCK, pos(0, -1, 0)):
            for i in range(11):

                mobs.spawn(PRIMED_TNT, randpos(world(x-8,y+3,z+3), world(x+8,y+3,z+20)))
            break

def stage4(z):
    player.say("STAGE 4")
    blocks.fill(BEDROCK, world(x-10,y-1,z-2),world(x+10,y+10,z+30),FillOperation.HOLLOW)


    blocks.fill(BEDROCK, world(x-10,y-1,z-5),world(x+10,y-1,z+5))
    blocks.fill(BEDROCK, world(x-10,y,z-3),world(x+10,y+10,z-1))

    blocks.fill(GRANITE, world(x-9,y-1,z+25),world(x+9,y-1,z+27))

    for i in range(11):

        blocks.place(LAVA, randpos(world(x-9,y+1,z+5), world(x+9,y+1,z+20)))

def stage5(z):

    player.say("STAGE 5")
    blocks.fill(BEDROCK, world(x-10,y-1,z-2),world(x+10,y+10,z+30),FillOperation.HOLLOW)
    blocks.fill(BEDROCK, world(x-10,y-1,z-5),world(x+10,y-1,z+5))
    blocks.fill(BEDROCK, world(x-10,y,z-3),world(x+10,y+10,z-1))

    blocks.fill(REDSTONE_BLOCK, world(x-9,y-1,z+25),world(x+9,y-1,z+27))

    blocks.fill(AIR, world(x-9,y,z+3),world(x+9,y-4,z+20))

    blocks.fill(LAPIS_LAZULI_BLOCK, world(x-9,y-1,z+2),world(x+9,y-1,z+2))

    blocks.fill(LAPIS_LAZULI_BLOCK, world(x-9,y-1,z+7),world(x+9,y-1,z+7))

    blocks.fill(LAPIS_LAZULI_BLOCK, world(x-9,y-1,z+15),world(x+9,y-1,z+15))
    #adding a glowstone block at the end, when the player destroys it they will be moved to a safe spot
    blocks.place(GLOWSTONE, world(x, y, z+28))

    while blocks.test_for_block(REDSTONE_BLOCK, pos(0, -1, 0))==False:
        if blocks.test_for_block(LAPIS_LAZULI_BLOCK, pos(0, -1, 0)):

            mobs.apply_effect(LEVITATION, mobs.target(NEAREST_PLAYER), 2, 1)

def afterDestroying():

    player.teleport(pos(0, 0, 10))

blocks.on_block_broken(GLOWSTONE, afterDestroying)

#the code responsible to loading next levels
while True:
    #Checking the block under the player
    if blocks.test_for_block(SEA_LANTERN, pos(0, -1, 0)):
        #getting the current position and passing it to the function
        position=player.position()
        z=position.get_value(Axis.Z)
        stage1(z)
        loops.pause(3000)
    elif blocks.test_for_block(GOLD_BLOCK, pos(0, -1, 0)):
        position=player.position()
        z=position.get_value(Axis.Z)
        stage2(z)
        loops.pause(3000)
    elif blocks.test_for_block(GLASS, pos(0, -1, 0)):
        position=player.position()
        z=position.get_value(Axis.Z)
        stage3(z)
        loops.pause(3000)
    elif blocks.test_for_block(COBBLESTONE, pos(0, -1, 0)):
        position=player.position()
        z=position.get_value(Axis.Z)
        stage4(z)
        loops.pause(3000)
    elif blocks.test_for_block(GRANITE, pos(0, -1, 0)):
        position=player.position()
        z=position.get_value(Axis.Z)
        stage5(z)
        loops.pause(3000)