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correct sun distance display

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This commit is contained in:
yuni 2024-04-08 01:13:31 +02:00
parent 9f15e78e07
commit 55f0c6c607
2 changed files with 16 additions and 9 deletions
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1
src/nature.rs
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@ -8,6 +8,7 @@ pub const OXY_M: f32 = OXYGEN_USE_KG_PER_S * 60.0;
pub const OXY_H: f32 = OXYGEN_USE_KG_PER_S * 60.0 * 60.0;
pub const OXY_D: f32 = OXYGEN_USE_KG_PER_S * 60.0 * 60.0 * 24.0;
pub const PARSEC2METER: f64 = 3.0857e16;
pub const DIST_JUPTER_SUN: f64 = 778479.0e6;
pub fn star_color_index_to_rgb(color_index: f32) -> (f32, f32, f32) {
let temperature = 4600.0 * ((1.0 / (0.92 * color_index + 1.7)) + (1.0 / (0.92 * color_index + 0.62)));

24
src/world.rs
View file

@ -125,19 +125,20 @@ pub fn setup(
let mut starcount = 0;
for star in stars::STARS {
let mag = star.3;
let is_sun = mag < -20.0;
if mag > STARS_MAX_MAGNITUDE {
continue;
}
let scale_color = {|color: f32|
if mag < -20.0 {
color * 13.0f32 // Sun
if is_sun {
color * 13.0f32
} else {
color * (0.0659663 * mag * mag - 1.09862 * mag + 4.3)
}
};
let scale_size = {|mag: f32|
if mag < -20.0 {
40000.0f32 // Sun
if is_sun {
40000.0f32
} else {
1000.0 * (0.230299 * mag * mag - 3.09013 * mag + 15.1782)
} * 100.0
@ -148,7 +149,12 @@ pub fn setup(
unlit: true,
..default()
});
let dist = 1e9;
let mesh_distance = 1e9;
let starchart_distance = if is_sun {
nature::DIST_JUPTER_SUN
} else {
nature::PARSEC2METER * star.5 as f64
};
let name = if star.6.is_empty() {
"Uncharted Star".to_string()
} else {
@ -158,15 +164,15 @@ pub fn setup(
Star,
hud::IsClickable {
name: Some(name),
distance: Some(nature::PARSEC2METER * star.5 as f64),
distance: Some(starchart_distance),
},
PbrBundle {
mesh: sphere_handle.clone(),
material: star_color_handle,
transform: Transform::from_xyz(
dist * star.0,
dist * star.1,
dist * star.2,
mesh_distance * star.0,
mesh_distance * star.1,
mesh_distance * star.2,
)
.with_scale(Vec3::splat(scale_size(mag))),
..default()