bevy_mod_physx 0.9.0

PhysX plugin for Bevy
Documentation 
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//! Defines characteristics of collision shapes (geometry, material).
use bevy::prelude::*;
use physx::prelude::*;
use physx::traits::Class;
use physx_sys::PxPhysics_createShape_mut;

use crate::core::geometry::GeometryInner;
use crate::core::scene::SceneRwLock;
use crate::prelude as bpx;
use crate::types::*;

#[derive(Component, Clone)]
pub struct Shape {
    pub geometry: Handle<bpx::Geometry>,
    pub material: Handle<bpx::Material>,
    pub flags: ShapeFlags,
}

impl Default for Shape {
    fn default() -> Self {
        Self {
            geometry: default(),
            material: default(),
            flags: ShapeFlags::SceneQueryShape
                | ShapeFlags::SimulationShape
                | ShapeFlags::Visualization,
        }
    }
}

#[derive(Component, Deref, DerefMut)]
pub struct ShapeHandle {
    #[deref]
    handle: SceneRwLock<Owner<PxShape>>,
    // we want to specify outward normal for PxPlane specifically, so need to return transform for this
    pub custom_xform: Transform,
}

impl ShapeHandle {
    pub fn new(px_shape: Owner<PxShape>, custom_xform: Transform) -> Self {
        Self { handle: SceneRwLock::new(px_shape), custom_xform }
    }

    pub fn create_shape(
        physics: &mut bpx::Physics,
        geometry: &mut bpx::Geometry,
        material: &bpx::Material,
        flags: ShapeFlags,
        user_data: Entity,
    ) -> Self {
        // we want to specify outward normal for PxPlane specifically, so need to return transform for this
        let mut transform = Transform::IDENTITY;

        let geometry_ptr = match &mut geometry.obj {
            GeometryInner::Sphere(geom)  => { geom.as_ptr() },
            GeometryInner::Plane { plane, normal } => {
                transform.rotate(Quat::from_rotation_arc(Vec3::X, **normal));
                plane.as_ptr()
            },
            GeometryInner::Capsule(geom) => { geom.as_ptr() },
            GeometryInner::Box(geom)     => { geom.as_ptr() },
            GeometryInner::ConvexMesh { mesh, scale, flags } => {
                PxConvexMeshGeometry::new(
                    mesh.lock().unwrap().as_mut(),
                    scale,
                    *flags,
                ).as_ptr()
            },
            GeometryInner::TriangleMesh { mesh, scale, flags } => {
                PxTriangleMeshGeometry::new(
                    mesh.lock().unwrap().as_mut(),
                    scale,
                    *flags,
                ).as_ptr()
            },
            GeometryInner::HeightField { mesh, scale, flags } => {
                PxHeightFieldGeometry::new(
                    mesh.lock().unwrap().as_mut(),
                    *flags,
                    scale.scale.y,
                    scale.scale.x,
                    scale.scale.z,
                ).as_ptr()
            },
        };

        //let shape = physics.create_shape(geometry, materials, is_exclusive, shape_flags, user_data)
        let shape : Owner<PxShape> = unsafe {
            physx::shape::Shape::from_raw(
                PxPhysics_createShape_mut(
                    physics.physics_mut().as_mut_ptr(),
                    geometry_ptr,
                    material.as_ptr(),
                    true,
                    flags,
                ),
                user_data
            ).unwrap()
        };

        Self::new(shape, transform)
    }
}