lots of skeleton stuff. lots of hacking. mostly hacking

src/components.rs

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+use wgpu::{TextureView, Buffer, BindGroup};
+use std::sync::Arc;
+use rapier3d::dynamics::{RigidBody, RigidBodyHandle};
+use rapier3d::geometry::ColliderHandle;
+use rapier3d::geometry::Collider as r3dCollider;
+
+// a component is any type that is 'static, sized, send and sync
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub struct Position {
+    pub x: f32,
+    pub y: f32,
+    pub z: f32,
+    pub rot: cgmath::Quaternion<f32>,
+}
+
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub struct Color {
+    pub r: f32,
+    pub g: f32,
+    pub b: f32,
+    pub a: f32,
+}
+
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub struct Velocity {
+    pub dx: f32,
+    pub dy: f32,
+    pub rs: f32,
+}
+
+#[derive(Clone, Default, PartialEq, Eq, Hash, Copy, Debug)]
+pub struct RangeCopy<Idx> {
+    pub start: Idx,
+    pub end: Idx,
+}
+
+#[derive(Clone, Debug)]
+pub struct DirectionalLight {
+    pub color: wgpu::Color,
+    pub fov: f32,
+    pub depth: RangeCopy<f32>,
+    pub target_view: Arc<TextureView>,
+}
+
+#[derive(Clone, Debug)]
+pub struct Mesh {
+    pub index_buffer: Arc<Buffer>,
+    pub index_count: usize,
+    pub vertex_buffer: Arc<Buffer>,
+    pub uniform_buffer: Arc<Buffer>,
+    pub bind_group: Arc<BindGroup>,
+}
+
+#[derive(Clone, Debug)]
+pub struct Physics {
+    pub rigid_body: RigidBody,
+    pub rigid_body_handle: Option<RigidBodyHandle>,
+}
+
+#[derive(Clone)]
+pub struct Collider {
+    pub collider: r3dCollider,
+    pub collider_handle: Option<ColliderHandle>,
+}