我的球员是下降和移动的y轴，当我添加了一个相机到球员在熊

Question

好的，在我的代码中，我试图让相机跟随我的播放器，我正在遵循我发现的关于堆栈溢出的教程。但当我这么做的时候；跌倒"；它在y轴上旋转，这是怎么发生的，我也试图产生地面类，但我认为我没有。看了所有关于熊的文档，看了如何制作视频，我仍然不明白为什么。我做错了什么？

from ursina import *
from ursina.prefabs.first_person_controller import FirstPersonController

app = Ursina()
EditorCamera()
cam = FirstPersonController()

class Player(Entity):
def __init__(self, **kwargs):
super().__init__(model='cube', color=color.orange, collider='box', origin = (0, 0, -2), parent = cam)
self.health_bar = Entity(parent=self, model='quad', color=color.red, scale_y=.1, y=1.2)
self.max_health = 100
self.health = self.max_health






class Beings(Entity):
def __init__(self, **kwargs):
super().__init__(model='cube', color=color.gray, scale=2, collider='box', position=Vec3(1,0,2), origin_y=-.5)
self.health_bar = Entity(parent=self, model='quad', color=color.red, scale_y=.1, y=1.2)
self.max_health = 100
self.health = self.max_health

class Ground(Entity):
def __init__(self, **kwargs):
super().__init__(model='plane', color=color.gray, scale=2, collider='mesh', position=Vec3(1,0,2), origin_y=-.4)
self.health_bar = Entity(parent=self, model='quad', color=color.red, scale_y=.1, y=1.2)
self.max_health = 100
self.health = self.max_health
class Buildings(Entity):
def __init__(self, **kwargs):
super().__init__(model='cube', color=color.gray, scale=2, collider='box', position=Vec3(1,0,2), origin_y=-.5)
self.health_bar = Entity(parent=self, model='quad', color=color.red, scale_y=.1, y=1.2)
self.max_health = 100
self.health = self.max_health

class plants(Entity):
def __init__(self, **kwargs):
super().__init__(model='cube', color=color.gray, scale=2, collider='box', position=Vec3(1,0,2), origin_y=-.5)
self.health_bar = Entity(parent=self, model='quad', color=color.red, scale_y=.1, y=1.2)
self.max_health = 100
self.health = self.max_health
class Earth(Entity):
def __init__(self, **kwargs):
super().__init__(model='cube', color=color.gray, scale=2, collider='box', position=Vec3(1,0,2), origin_y=-.5)
self.health_bar = Entity(parent=self, model='quad', color=color.red, scale_y=.1, y=1.2)
self.max_health = 100
self.health = self.max_health





b = Beings()
p = Player()

def update():

Ground()
p.z += (held_keys['w'] - held_keys['s']) * time.dt * 6
p.x += (held_keys['d'] - held_keys['a']) * time.dt * 6

if p.intersects(b).hit:
b.color = color.lime
print('player is inside trigger box')
else:
b.color = color.gray
app.run()

Answer 1

因为地面在玩家底部上方，所以它正在下落。这可以通过向下移动地面来解决，例如y=-1。此外，将origin_y设置为负值，就像您所做的那样，将向上移动模型和碰撞器。

Answer 2

我认为这将对您有所帮助。你必须更改地面和玩家的y坐标：

from ursina import *
from ursina.prefabs.first_person_controller import FirstPersonController

app = Ursina()
# EditorCamera()
# cam = FirstPersonController(y=5)

class Player(FirstPersonController):
def __init__(self, **kwargs):
super().__init__(model='cube', color=color.orange, collider='box')
self.y=5
self.health_bar = Entity(parent=self, model='quad', color=color.red, scale_y=.1, y=1.2)
self.max_health = 100
self.health = self.max_health
self.origin = (0, 0, -1)
# camera.position=(0, 1, -3)

class Beings(Entity):
def __init__(self, **kwargs):
super().__init__(model='cube', color=color.gray, scale=2, collider='box', position=Vec3(1,0,2), origin_y=-.5)
self.health_bar = Entity(parent=self, model='quad', color=color.red, scale_y=.1, y=1.2)
self.max_health = 100
self.health = self.max_health

class Ground(Entity):
def __init__(self, **kwargs):
super().__init__(model='plane', texture_scale=(50, 50), texture='white_cube', scale=50, collider='mesh', position=Vec3(1,0,2))
self.health_bar = Entity(parent=self, model='quad', color=color.red, scale_y=.1, y=1.2)
self.max_health = 100
self.health = self.max_health
self.y = -1 #change this as per your requirment
self.texture='white_cube'
class Buildings(Entity):
def __init__(self, **kwargs):
super().__init__(model='cube', color=color.gray, scale=2, collider='box', position=Vec3(1,0,2), origin_y=-.5)
self.health_bar = Entity(parent=self, model='quad', color=color.red, scale_y=.1, y=1.2)
self.max_health = 100
self.health = self.max_health

class plants(Entity):
def __init__(self, **kwargs):
super().__init__(model='cube', color=color.gray, scale=2, collider='box', position=Vec3(1,0,2), origin_y=-.5)
self.health_bar = Entity(parent=self, model='quad', color=color.red, scale_y=.1, y=1.2)
self.max_health = 100
self.health = self.max_health
class Earth(Entity):
def __init__(self, **kwargs):
super().__init__(model='cube', color=color.gray, scale=2, collider='box', position=Vec3(1,0,2), origin_y=-.5)
self.health_bar = Entity(parent=self, model='quad', color=color.red, scale_y=.1, y=1.2)
self.max_health = 100
self.health = self.max_health





b = Beings()
p = Player()
g = Ground()
def update():



if p.intersects(b).hit:
b.color = color.lime
print('player is inside trigger box')
else:
b.color = color.gray
app.run()