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import random
from ursina import *
from ursina.shaders import lit_with_shadows_shader
from ursina.prefabs.first_person_controller import FirstPersonController
app = Ursina()
a = 0
c = True
s = ['grass','brick','wood.png','jiyan.png']
camera = EditorCamera(enabled = False)
def input(key):
    global a,c
    if key == 'tab':
        camera.enabled = not camera.enabled
        mouse.locked = not camera.enabled
        parent = player
        c = not camera.enabled
        
    if key == 'escape':quit()
    if key == '1':a=0
    if key == '2':a=1
    if key == '3':a=2
    if key == '4':a=3
    for box in boxes:
        if box.hovered:
            if key == "left mouse down" and c:    
                
                new = Button(model = 'cube',
                    color = color.white,
                    position = box.position+mouse.normal,
                    texture = s[a],
                    parent = scene,
                    origin_y = 0.5)
                boxes.append(new)
            if key == "right mouse down" and c:
                    boxes.remove(box)
                    destroy(box)
    if key == 'm':
        player.position=(0,18,0)
def update():
    if player.position.y < -20:
        player.position=(0,18,0)


player = FirstPersonController()
boxes = []
for i in range(32):
    for j in range(32):
        box=Button(model = 'cube',
                    color = color.white,
                    position = (j,0,i),
                    texture = s[3],
                    parent = scene,
                    origin_y = 0.5)
        boxes.append(box)
for i in range(32):
    for j in range(32):
        for y in range(1,2):
            box1=Button(model = 'cube',
                        color = color.white,
                        position = (j,y,i),
                        texture = s[0],
                        parent = scene,
                        origin_y = 0.5)
            boxes.append(box1)
Entity.boxes = lit_with_shadows_shader  # 光影default_shader
app.run()

jiyan.png

wood.png