57 lines
1.5 KiB
Rust
57 lines
1.5 KiB
Rust
use na::Point2;
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use rapier2d::dynamics::{JointSet, RigidBodyBuilder, RigidBodySet};
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use rapier2d::geometry::{ColliderBuilder, ColliderSet};
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use rapier_testbed2d::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 joints = JointSet::new();
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/*
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* Ground
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*/
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let ground_size = 20.;
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let ground_height = 1.0;
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let rigid_body = RigidBodyBuilder::new_static()
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.translation(0.0, -ground_height)
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.build();
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let handle = bodies.insert(rigid_body);
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let collider = ColliderBuilder::cuboid(ground_size, ground_height)
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.restitution(1.0)
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.build();
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colliders.insert(collider, handle, &mut bodies);
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let num = 10;
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let rad = 0.5;
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for j in 0..2 {
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for i in 0..=num {
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let x = (i as f32) - num as f32 / 2.0;
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let rigid_body = RigidBodyBuilder::new_dynamic()
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.translation(x * 2.0, 10.0 * (j as f32 + 1.0))
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.build();
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let handle = bodies.insert(rigid_body);
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let collider = ColliderBuilder::ball(rad)
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.restitution((i as f32) / (num as f32))
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.build();
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colliders.insert(collider, handle, &mut bodies);
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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, joints);
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testbed.look_at(Point2::new(0.0, 1.0), 25.0);
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}
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fn main() {
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let testbed = Testbed::from_builders(0, vec![("Boxes", init_world)]);
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testbed.run()
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}
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