test.py

from ursina import *
app = Ursina()


class Player(Entity):

    def update(self):
        self.direction = Vec3(
            self.forward * (held_keys['w'] - held_keys['s'])
            + self.right * (held_keys['d'] - held_keys['a'])
        ).normalized()  # get the direction we're trying to walk in.

        # the ray should start slightly up from the ground so we can walk up slopes or walk over small objects.
        origin = self.world_position + (self.up*.5)
        hit_info = raycast(origin, self.direction, ignore=(
            self,), distance=.5, debug=False)
        if not hit_info.hit:
            self.position += self.direction * 5 * time.dt


Player(model='cube', origin_y=-.5, color=color.orange)
wall_left = Entity(model='cube', collider='box', scale_y=3,
                   origin_y=-.5, color=color.azure, x=-4)
wall_right = duplicate(wall_left, x=4)
camera.y = 2

app.run()