Python写的MC

（有ursina库）

from ursina import *

from ursina import Ursina

from ursina.prefabs.first_person_controller import FirstPersonController

import ursina


def update():
    if (held_keys["left mouse"]):
        sword.position = (0.4, -0.5)
    elif (held_keys["right mouse"]):
        sword.position = (0.4, -0.5)
    else:
        sword.position = (0.5, -0.6)


def input(key):
    global block
    if key == '1':
        block = 'block_img/diamond_block.png';
    if key == '2':
        block = 'block_img/gold_block.png';
    if key == '3':
        block = 'block_img/green_block.png';
    if key == '4':
        block = 'block_img/grass.png';
    if key == '5':
        block = 'block_img/shazi.png';
    if key == '6':
        block = 'block_img/a_block.png';
    if (key == '7'):
        block = 'block_img/stone.png'
    if key == '8':
        block = 'block_img/bedrock.png'
    if key == '9':
        block = 'image/blockworld-ico.tiff'
    if (key == "escape"):
        quit()
    for box in boxes:
        if box.hovered:
            if (key == "left mouse down"):
                new = Button(
                    model="cube",
                    color=color.white,
                    position=box.position + mouse.normal,
                    parent=scene,
                    texture=block,
                    origin_y=0.5
                )
                boxes.append(new)
            if (key == "right mouse down"):
                boxes.remove(box)
                destroy(box)
    for br in brs:
        if br.hovered:
            if key == "right mouse down":
                brs.remove(br)
                destroy(br)
            if key == "left mouse down":
                new = Button(
                    model="cube",
                    color=color.white,
                    position=br.position + mouse.normal,
                    texture=block,
                    parent=scene,
                    origin_y=1.5
                )
                brs.append(new)


app: Ursina = ursina.Ursina()
Sky()
player = FirstPersonController()
boxes = []
brs = []
bars = []
for n in range(25):
    for k in range(25):
        box = Button(model="cube",
                    color=color.white,
                    position=(k, 0, n),
                    texture='block_img/grass.png',
                    parent=scene,
                    origin_y=0.5)
        boxes.append(box)

for n in range(25):
    for k in range(25):
        br = Button(model="cube",
                    color=color.white,
                    position=(k, 0, n),
                    texture='block_img/stone.png',
                    parent=scene,
                    origin_y=1.5)
        brs.append(br)
for n in range(-2, 27, 1):
    for k in range(-2, 27, 1):
        br = Button(model="cube",
                    color=color.white,
                    position=(k, 0, n),
                    texture='block_img/bedrock.png',
                    parent=scene,
                    origin_y=5.5)
        brs.append(br)
sword = Entity(model="cube",
            color=color.white,
            texture="image/hand.jpg",
            parent=camera.ui,
            rotation=(-35, -30, -5),
            position=(0.5, -0.6),
            scale=(0.1, 0.2))
block = 'image/blockworld-ico.tiff'
app.run()