51 lines
1.5 KiB
Rust
51 lines
1.5 KiB
Rust
use na::{Point3, Vector3};
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use rapier3d::dynamics::{JointSet, RigidBodyBuilder, RigidBodySet};
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use rapier3d::geometry::{ColliderBuilder, ColliderSet, HalfSpace, SharedShape};
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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 joints = JointSet::new();
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/*
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* Ground
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*/
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let rigid_body = RigidBodyBuilder::new_static().build();
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let handle = bodies.insert(rigid_body);
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let halfspace = SharedShape::new(HalfSpace::new(Vector3::y_axis()));
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let collider = ColliderBuilder::new(halfspace).build();
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colliders.insert(collider, handle, &mut bodies);
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let mut curr_y = 0.0;
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let mut curr_width = 10_000.0;
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for _ in 0..12 {
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let curr_height = 0.1f32.min(curr_width);
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curr_y += curr_height * 4.0;
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let rigid_body = RigidBodyBuilder::new_dynamic()
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.translation(0.0, curr_y, 0.0)
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.build();
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let handle = bodies.insert(rigid_body);
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let collider = ColliderBuilder::cuboid(curr_width, curr_height, curr_width).build();
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colliders.insert(collider, handle, &mut bodies);
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curr_width /= 5.0;
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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(Point3::new(10.0, 10.0, 10.0), Point3::origin());
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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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