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use rapier3d::prelude::*;
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(vector![x, y, z])
.build();
let handle = bodies.insert(rigid_body);
let collider = ColliderBuilder::ball(rad).density(density).build();
colliders.insert_with_parent(collider, handle, &mut bodies);
}
}
}
/*
* Set up the testbed.
*/
testbed.set_world(bodies, colliders, joints);
testbed.look_at(point![100.0, 100.0, 100.0], Point::origin());
}
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