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example from dimforge#328 Co-authored-by: Anthony Tornetta <25857049+AnthonyTornetta@users.noreply.github.com>
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Original file line number | Diff line number | Diff line change |
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use bevy::prelude::*; | ||
use bevy_rapier3d::prelude::*; | ||
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const N_WORLDS: usize = 2; | ||
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fn main() { | ||
App::new() | ||
.insert_resource(ClearColor(Color::rgb( | ||
0xF9 as f32 / 255.0, | ||
0xF9 as f32 / 255.0, | ||
0xFF as f32 / 255.0, | ||
))) | ||
.add_plugins(( | ||
DefaultPlugins, | ||
RapierPhysicsPlugin::<NoUserData>::default().with_default_world(None), | ||
RapierDebugRenderPlugin::default(), | ||
)) | ||
.add_systems( | ||
Startup, | ||
((create_worlds, setup_physics).chain(), setup_graphics), | ||
) | ||
.add_systems(Update, move_platforms) | ||
// .add_systems(Update, change_world) | ||
// .add_systems(Update, despawn_last) | ||
.run(); | ||
} | ||
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fn create_worlds(mut commands: Commands) { | ||
for i in 0..N_WORLDS { | ||
commands.spawn((RapierContext::default(), WorldId(i))); | ||
} | ||
} | ||
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fn setup_graphics(mut commands: Commands) { | ||
commands.spawn(Camera3dBundle { | ||
transform: Transform::from_xyz(0.0, 3.0, -10.0) | ||
.looking_at(Vec3::new(0.0, 0.0, 0.0), Vec3::Y), | ||
..Default::default() | ||
}); | ||
} | ||
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#[derive(Component)] | ||
pub struct WorldId(pub usize); | ||
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#[derive(Component)] | ||
struct Platform { | ||
starting_y: f32, | ||
} | ||
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fn move_platforms(time: Res<Time>, mut query: Query<(&mut Transform, &Platform)>) { | ||
for (mut transform, platform) in query.iter_mut() { | ||
transform.translation.y = platform.starting_y + -time.elapsed_seconds().sin(); | ||
} | ||
} | ||
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/// Demonstrates despawning an entity removing it from its world | ||
// fn despawn_last(query: Query<(&PhysicsWorld, Entity)>, mut commands: Commands) { | ||
// for (bw, entity) in query.iter() { | ||
// if bw.world_id == N_WORLDS - 1 { | ||
// commands.entity(entity).despawn_recursive(); | ||
// } | ||
// } | ||
// } | ||
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/// Demonstrates how easy it is to move one entity to another world. | ||
// fn change_world(mut query: Query<&mut PhysicsWorld>) { | ||
// for mut bw in query.iter_mut() { | ||
// if bw.world_id == 1 { | ||
// bw.world_id = 0; | ||
// } | ||
// } | ||
// } | ||
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pub fn setup_physics( | ||
context: Query<(Entity, &WorldId), With<RapierContext>>, | ||
mut commands: Commands, | ||
) { | ||
for (context_entity, id) in context.iter() { | ||
let id = id.0; | ||
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let color = [ | ||
Hsla::hsl(220.0, 1.0, 0.3), | ||
Hsla::hsl(180.0, 1.0, 0.3), | ||
Hsla::hsl(260.0, 1.0, 0.7), | ||
][id % 3]; | ||
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/* | ||
* Ground | ||
*/ | ||
let ground_size = 5.1; | ||
let ground_height = 0.1; | ||
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let starting_y = (id as f32) * -0.5 - ground_height; | ||
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let mut platforms = commands.spawn(( | ||
TransformBundle::from(Transform::from_xyz(0.0, starting_y, 0.0)), | ||
Collider::cuboid(ground_size, ground_height, ground_size), | ||
ColliderDebugColor(color), | ||
RapierContextEntityLink(context_entity), | ||
)); | ||
if id == 1 { | ||
platforms.insert(Platform { starting_y }); | ||
} | ||
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/* | ||
* Create the cube | ||
*/ | ||
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commands.spawn(( | ||
TransformBundle::from(Transform::from_xyz(0.0, 1.0 + id as f32 * 5.0, 0.0)), | ||
RigidBody::Dynamic, | ||
Collider::cuboid(0.5, 0.5, 0.5), | ||
ColliderDebugColor(color), | ||
RapierContextEntityLink(context_entity), | ||
)); | ||
} | ||
} |
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mod rapier_context_access; | ||
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use bevy::{ecs::query::QueryData, prelude::Entity}; | ||
pub use rapier_context_access::*; | ||
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use super::RapierContextEntityLink; | ||
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#[derive(QueryData)] | ||
pub struct RapierEntity { | ||
pub entity: Entity, | ||
pub rapier_context_link: &'static RapierContextEntityLink, | ||
} |
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