59 lines
1.7 KiB
Rust
59 lines
1.7 KiB
Rust
use na::Point3;
|
|
use rapier3d::dynamics::{JointSet, RigidBodyBuilder, RigidBodySet, RigidBodyType};
|
|
use rapier3d::geometry::{ColliderBuilder, ColliderSet};
|
|
use rapier_testbed3d::Testbed;
|
|
|
|
pub fn init_world(testbed: &mut Testbed) {
|
|
/*
|
|
* World
|
|
*/
|
|
let mut bodies = RigidBodySet::new();
|
|
let mut colliders = ColliderSet::new();
|
|
let joints = JointSet::new();
|
|
|
|
/*
|
|
* Create the balls
|
|
*/
|
|
let num = 20;
|
|
let rad = 1.0;
|
|
|
|
let shift = rad * 2.0 + 1.0;
|
|
let centerx = shift * (num as f32) / 2.0;
|
|
let centery = shift / 2.0;
|
|
let centerz = shift * (num as f32) / 2.0;
|
|
|
|
for i in 0..num {
|
|
for j in 0usize..num {
|
|
for k in 0..num {
|
|
let x = i as f32 * shift - centerx;
|
|
let y = j as f32 * shift + centery;
|
|
let z = k as f32 * shift - centerz;
|
|
|
|
let status = if j == 0 {
|
|
RigidBodyType::Static
|
|
} else {
|
|
RigidBodyType::Dynamic
|
|
};
|
|
let density = 0.477;
|
|
|
|
// Build the rigid body.
|
|
let rigid_body = RigidBodyBuilder::new(status).translation(x, y, z).build();
|
|
let handle = bodies.insert(rigid_body);
|
|
let collider = ColliderBuilder::ball(rad).density(density).build();
|
|
colliders.insert(collider, handle, &mut bodies);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Set up the testbed.
|
|
*/
|
|
testbed.set_world(bodies, colliders, joints);
|
|
testbed.look_at(Point3::new(100.0, 100.0, 100.0), Point3::origin());
|
|
}
|
|
|
|
fn main() {
|
|
let testbed = Testbed::from_builders(0, vec![("Balls", init_world)]);
|
|
testbed.run()
|
|
}
|