From cc6d1b973002b4d366bc81ec6bf9e8240ad7b404 Mon Sep 17 00:00:00 2001 From: Crozet Sébastien Date: Mon, 14 Dec 2020 15:51:43 +0100 Subject: Outsource the Shape trait, wquadtree, and shape types. --- src/dynamics/mass_properties_cone.rs | 29 ----------------------------- 1 file changed, 29 deletions(-) delete mode 100644 src/dynamics/mass_properties_cone.rs (limited to 'src/dynamics/mass_properties_cone.rs') diff --git a/src/dynamics/mass_properties_cone.rs b/src/dynamics/mass_properties_cone.rs deleted file mode 100644 index 12f831f..0000000 --- a/src/dynamics/mass_properties_cone.rs +++ /dev/null @@ -1,29 +0,0 @@ -use crate::dynamics::MassProperties; -use crate::math::{Point, PrincipalAngularInertia, Rotation, Vector}; - -impl MassProperties { - pub(crate) fn cone_y_volume_unit_inertia( - half_height: f32, - radius: f32, - ) -> (f32, PrincipalAngularInertia) { - let volume = radius * radius * std::f32::consts::PI * half_height * 2.0 / 3.0; - let sq_radius = radius * radius; - let sq_height = half_height * half_height * 4.0; - let off_principal = sq_radius * 3.0 / 20.0 + sq_height * 3.0 / 5.0; - let principal = sq_radius * 3.0 / 10.0; - - (volume, Vector::new(off_principal, principal, off_principal)) - } - - pub(crate) fn from_cone(density: f32, half_height: f32, radius: f32) -> Self { - let (cyl_vol, cyl_unit_i) = Self::cone_y_volume_unit_inertia(half_height, radius); - let cyl_mass = cyl_vol * density; - - Self::with_principal_inertia_frame( - Point::new(0.0, -half_height / 2.0, 0.0), - cyl_mass, - cyl_unit_i * cyl_mass, - Rotation::identity(), - ) - } -} -- cgit