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give objects orbiting jupiter an orbital velocity on startup

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This commit is contained in:
yuni 2024-06-08 04:17:54 +02:00
parent e16a650b22
commit d9af542d54
1 changed files with 13 additions and 1 deletions
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14
src/cmd.rs
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@ -617,6 +617,12 @@ fn spawn_entities(
settings: Res<var::Settings>, settings: Res<var::Settings>,
) { ) {
for state_wrapper in er_spawn.read() { for state_wrapper in er_spawn.read() {
let jupiter_pos: DVec3 = if let Some(jupiter_pos) = id2pos.0.get(ID_JUPITER) {
*jupiter_pos
} else {
warn!("Could not determine Jupiter's position");
DVec3::ZERO
};
let state = &state_wrapper.0; let state = &state_wrapper.0;
let mut rotation = state.rotation; let mut rotation = state.rotation;
if state.class == DefClass::Actor { if state.class == DefClass::Actor {
@ -669,6 +675,12 @@ fn spawn_entities(
} * state.model_scale, } * state.model_scale,
); );
let orbits_jupiter = state.id != ID_JUPITER; let orbits_jupiter = state.id != ID_JUPITER;
let velocity = if orbits_jupiter {
let coords = absolute_pos - jupiter_pos;
state.velocity + nature::orbital_velocity(coords, nature::JUPITER_MASS)
} else {
state.velocity
};
// Spawn the actor // Spawn the actor
let actor_entity; let actor_entity;
@ -719,7 +731,7 @@ fn spawn_entities(
// Physics Parameters // Physics Parameters
if state.has_physics { if state.has_physics {
actor.insert(RigidBody::Dynamic); actor.insert(RigidBody::Dynamic);
actor.insert(LinearVelocity(state.velocity)); actor.insert(LinearVelocity(velocity));
actor.insert(AngularVelocity(state.angular_momentum)); actor.insert(AngularVelocity(state.angular_momentum));
actor.insert(ColliderDensity(state.density)); actor.insert(ColliderDensity(state.density));
if state.collider_is_mesh { if state.collider_is_mesh {