Static Body Physics

You can enable physics collisions for a scene object by adding the static-body component.

This makes the scene object a fixed-position or animated object. Other objects may collide with static bodies, but static bodies themselves are unaffected by gravity and collisions.

More properties at A-Frame Physics System.

Additional Python properties are available in the StaticBody API Reference.

from arena import *

scene = Scene(host="arenaxr.org", scene="example")

static_body = StaticBody(
    type="static",
)

@scene.run_once
def make_drop_box():
    # First, enable physics in the scene.
    opt_obj = Object(
        object_id="scene-options",
        persist=True,
    )
    opt_obj.type = "scene-options"
    opt_obj.data["scene-options"] = {"physics": True}
    scene.add_object(opt_obj)

    # Now, create an static ground Plane for a Box to collide with under gravity.
    ground_plane = Box(
        object_id="groundPlane",
        persist=True,
        position=(0, -0.01, 0),
        depth=1000,
        width=1000,
        height=0.01,
        material=Material(opacity=0.01, transparent=True),
        static_body=static_body,
    )
    scene.add_object(ground_plane)

scene.run_tasks()