Files
rapier/examples3d/newton_cradle3.rs
Sébastien Crozet 0b7c3b34ec feat: migrate to glam whenever relevant + migrate testbed to kiss3d instead of bevy + release v0.32.0 (#909)
* feat: migrate to glam whenever relevant + migrate testbed to kiss3d instead of bevy

* chore: update changelog

* Fix warnings and tests

* Release v0.32.0
2026-01-09 17:26:36 +01:00

46 lines
1.3 KiB
Rust

use rapier_testbed3d::Testbed;
use rapier3d::prelude::*;
pub fn init_world(testbed: &mut Testbed) {
/*
* World
*/
let mut bodies = RigidBodySet::new();
let mut colliders = ColliderSet::new();
let mut impulse_joints = ImpulseJointSet::new();
let multibody_joints = MultibodyJointSet::new();
let radius = 0.5;
let length = 10.0 * radius;
let rb = RigidBodyBuilder::dynamic();
let co = ColliderBuilder::ball(radius).restitution(1.0);
let n = 5;
for i in 0..n {
let (ball_pos, attach) = (
Vector::new(i as Real * 2.2 * radius, 0.0, 0.0),
Vector::Y * length,
);
let vel = if i >= n - 1 {
Vector::new(7.0, 0.0, 0.0)
} else {
Vector::ZERO
};
let ground = bodies.insert(RigidBodyBuilder::fixed().translation(ball_pos + attach));
let rb = rb.clone().translation(ball_pos).linvel(vel);
let handle = bodies.insert(rb);
colliders.insert_with_parent(co.clone(), handle, &mut bodies);
let joint = SphericalJointBuilder::new().local_anchor2(attach);
impulse_joints.insert(ground, handle, joint, true);
}
/*
* Set up the testbed.
*/
testbed.set_world(bodies, colliders, impulse_joints, multibody_joints);
testbed.look_at(Vec3::new(10.0, 10.0, 10.0), Vec3::ZERO);
}