47 lines
1.5 KiB
Rust
47 lines
1.5 KiB
Rust
use rapier2d::prelude::*;
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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 mut impulse_joints = ImpulseJointSet::new();
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let multibody_joints = MultibodyJointSet::new();
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/*
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* The ground
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*/
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let ground_size = 5.0;
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let ground_height = 0.1;
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let rigid_body = RigidBodyBuilder::fixed().translation(vector![0.0, -ground_height]);
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let ground_handle = bodies.insert(rigid_body);
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let collider = ColliderBuilder::cuboid(ground_size, ground_height);
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colliders.insert_with_parent(collider, ground_handle, &mut bodies);
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/*
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* A rectangle on a motor
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*/
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for num in 0..9 {
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let x_pos = -6.0 + 1.5 * num as f32;
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let rigid_body = RigidBodyBuilder::dynamic().translation(vector![x_pos, 2.0]);
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let handle = bodies.insert(rigid_body);
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let collider = ColliderBuilder::cuboid(0.1, 0.5);
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colliders.insert_with_parent(collider, handle, &mut bodies);
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let joint = RevoluteJointBuilder::new()
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.local_anchor2(point![x_pos, 1.5])
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.local_anchor1(point![0.0, -0.5])
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.motor_position(std::f32::consts::PI/4.0*num as f32, 100.0, 15.0);
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impulse_joints.insert(handle,ground_handle, joint, true);
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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_with_params(bodies, colliders, impulse_joints, multibody_joints,vector![0.0,0.0],());
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testbed.look_at(point![0.0, 0.0], 40.0);
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}
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