51 lines
No EOL
1.1 KiB
Rust
51 lines
No EOL
1.1 KiB
Rust
use bevy::{prelude::*, window::PresentMode, render::camera::CameraProjectionPlugin};
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// use offaxis::{offaxis_camera_setup, OffAxisProjection};
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#[derive(Component,Default)]
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pub struct Viewer {
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pub position: Vec3,
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pub orientation: Quat,
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pub alpha: f32,
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}
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impl Viewer {
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pub fn new(position: Vec3) ->Self {
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Self {
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position,
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orientation: Quat::IDENTITY,
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alpha: 0.0,
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}
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}
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pub fn default() -> Self {
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Self {
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position: Vec3::ZERO,
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orientation: Quat::IDENTITY,
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alpha: 0.0
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}
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}
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}
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pub fn simulate_viewer(mut query: Query<&mut Viewer>)
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{
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for mut v in query.iter_mut() {
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//v.position += Vec3::Y * 0.005;
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v.alpha += 0.01;
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let radius = 1.5;
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v.position = Vec3::new(v.alpha.sin()*radius,v.alpha.cos()*radius + 1.0_f32,15.0);
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let vm = Mat4::look_at_rh(v.position, Vec3::ZERO, Vec3::Y);
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println!("{:?}",vm);
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// view matrices should be orientation only
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let dir = Quat::from_mat4(&vm);
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v.orientation = dir;
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}
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} |