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/*
wearechat - generic multiplayer game with voip
Copyright (C) 2025 metamuffin
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, version 3 of the License only.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
use crate::{
packets::{Object, Packet, Resource},
resources::Prefab,
};
use glam::Vec3A;
use std::collections::HashMap;
pub struct SceneTree {
pub objects: HashMap<Object, ObjectData>,
}
pub struct ObjectData {
pub pos: Vec3A,
pub rot: Vec3A,
pub parent: Object,
pub pose: Vec<f32>,
pub res: Resource<Prefab>,
}
impl Default for SceneTree {
fn default() -> Self {
Self {
objects: Default::default(),
}
}
}
impl SceneTree {
pub fn packet(&mut self, p: &Packet) {
match p {
Packet::Add(object, res) => {
self.objects.insert(*object, ObjectData {
parent: Object(0),
pos: Vec3A::ZERO,
rot: Vec3A::ZERO,
pose: Vec::new(),
res: res.clone(),
});
}
Packet::Remove(object) => {
self.objects.remove(&object);
}
Packet::Position(object, pos, rot) => {
if let Some(o) = self.objects.get_mut(&object) {
o.pos = *pos;
o.rot = *rot;
}
}
Packet::Pose(object, pose) => {
if let Some(o) = self.objects.get_mut(&object) {
o.pose = pose.to_vec();
}
}
Packet::Parent(parent, child) => {
if let Some(o) = self.objects.get_mut(&parent) {
o.parent = *child
}
}
_ => (),
}
}
pub fn prime_client(&self) -> impl Iterator<Item = Packet> {
self.objects
.iter()
.map(|(object, data)| {
[
Packet::Add(*object, data.res.clone()),
Packet::Parent(*object, data.parent),
Packet::Position(*object, data.pos, data.rot),
]
.into_iter()
.chain(if data.pose.is_empty() {
None
} else {
Some(Packet::Pose(*object, data.pose.clone()))
})
})
.flatten()
}
}
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