53 lines
1.5 KiB
Rust
53 lines
1.5 KiB
Rust
use rapier3d::prelude::*;
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use rapier_testbed3d::Testbed;
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pub fn init_world(testbed: &mut Testbed) {
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/*
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* World
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*/
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let mut bodies = RigidBodySet::new();
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let mut colliders = ColliderSet::new();
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let impulse_joints = ImpulseJointSet::new();
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let multibody_joints = MultibodyJointSet::new();
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/*
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* Create the balls
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*/
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let num = 20;
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let rad = 1.0;
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let shift = rad * 2.0 + 1.0;
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let centerx = shift * (num as f32) / 2.0;
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let centery = shift / 2.0;
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let centerz = shift * (num as f32) / 2.0;
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for i in 0..num {
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for j in 0usize..num {
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for k in 0..num {
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let x = i as f32 * shift - centerx;
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let y = j as f32 * shift + centery;
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let z = k as f32 * shift - centerz;
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let status = if j == 0 {
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RigidBodyType::Fixed
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} else {
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RigidBodyType::Dynamic
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};
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let density = 0.477;
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// Build the rigid body.
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let rigid_body = RigidBodyBuilder::new(status).translation(vector![x, y, z]);
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let handle = bodies.insert(rigid_body);
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let collider = ColliderBuilder::ball(rad).density(density);
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colliders.insert_with_parent(collider, handle, &mut bodies);
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}
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}
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}
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/*
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* Set up the testbed.
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*/
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testbed.set_world(bodies, colliders, impulse_joints, multibody_joints);
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testbed.look_at(point![100.0, 100.0, 100.0], Point::origin());
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}
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