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211use bevy::ecs::system::SystemParam;
use std::collections::BTreeMap;
use std::hash::{Hash, Hasher};
use std::ops::DerefMut;
use bevy::prelude::*;
use bevy::utils::AHasher;
use crate::index::{CompositeIndex2, CompositeIndex2Plugin};
use crate::op::{OpCategory, OpRef};
use crate::script::update;
use crate::Sets;
pub struct ParamPlugin;
impl Plugin for ParamPlugin {
fn build(&self, app: &mut App) {
app
.init_resource::<ParamsHash>()
.add_systems(Update, validate.after(update).in_set(Sets::Params))
.add_plugins(CompositeIndex2Plugin::<OpRef, ParamName>::new());
}
}
#[derive(Bundle, Default, Clone)]
pub struct ParamBundle {
pub name: ParamName,
pub value: ParamValue,
pub order: ParamOrder,
pub page: ParamPage,
}
#[derive(Component, Clone, Default, Debug)]
pub struct ParamPage(pub String);
#[derive(Component, Clone, Default, Debug, Eq, Ord, PartialOrd, PartialEq)]
pub struct ParamOrder(pub u32);
#[derive(Component, Clone, Default, Debug)]
pub struct Param;
#[derive(
Component, Deref, DerefMut, Default, Clone, PartialEq, Eq, Hash, Debug, Ord, PartialOrd,
)]
pub struct ParamName(pub String);
trait ParamType: Default {}
#[derive(Component, PartialEq, Clone, Debug, Default)]
pub enum ParamValue {
#[default]
None,
F32(f32),
U32(u32),
UVec2(UVec2),
Vec2(Vec2),
Vec3(Vec3),
Quat(Quat),
Color(Vec4),
Bool(bool),
TextureOp(Option<Entity>),
MeshOp(Option<Entity>),
}
impl Hash for ParamValue {
fn hash<H: Hasher>(&self, state: &mut H) {
match self {
ParamValue::None => 0.hash(state),
ParamValue::F32(v) => v.to_bits().hash(state),
ParamValue::U32(v) => v.hash(state),
ParamValue::UVec2(v) => v.hash(state),
ParamValue::Vec2(v) => {
v.x.to_bits().hash(state);
v.y.to_bits().hash(state);
},
ParamValue::Vec3(v) => {
v.x.to_bits().hash(state);
v.y.to_bits().hash(state);
v.z.to_bits().hash(state);
},
ParamValue::Quat(v) => {
v.x.to_bits().hash(state);
v.y.to_bits().hash(state);
v.z.to_bits().hash(state);
v.w.to_bits().hash(state);
},
ParamValue::Color(v) => {
v.x.to_bits().hash(state);
v.y.to_bits().hash(state);
v.z.to_bits().hash(state);
v.w.to_bits().hash(state);
},
ParamValue::Bool(v) => v.hash(state),
ParamValue::TextureOp(v) => v.hash(state),
ParamValue::MeshOp(v) => v.hash(state),
}
}
}
#[derive(Resource, Default, Debug)]
pub struct ParamsHash {
pub hashes: BTreeMap<Entity, u64>,
}
#[derive(Component, Deref, DerefMut, Default, Debug)]
pub struct ParamHash(pub u64);
#[derive(Component, Default, Debug)]
pub struct ScriptedParam;
#[derive(Component, Default, Debug)]
pub struct ScriptedParamError(pub String);
fn validate(
mut commands: Commands,
mut params_q: Query<(Entity, &mut ParamValue), Changed<ParamValue>>,
category_q: Query<&OpCategory>,
) {
for (entity, mut param_value) in params_q.iter_mut() {
match param_value.deref_mut() {
ParamValue::TextureOp(Some(e)) => {
let category = category_q.get(*e).unwrap();
if !category.is_texture() {
commands
.entity(entity)
.insert(ScriptedParamError("Invalid texture".to_string()));
*param_value = ParamValue::TextureOp(None);
}
}
ParamValue::MeshOp(Some(e)) => {
let category = category_q.get(*e).unwrap();
if !category.is_mesh() {
commands
.entity(entity)
.insert(ScriptedParamError("Invalid mesh".to_string()));
*param_value = ParamValue::MeshOp(None);
}
}
_ => {}
}
}
}
#[derive(SystemParam)]
pub struct Params<'w, 's> {
parent_q: Query<'w, 's, &'static Children>,
params_q: Query<'w, 's, &'static mut ParamValue>,
param_idx: Res<'w, CompositeIndex2<OpRef, ParamName>>,
}
impl<'w, 's> Params<'w, 's> {
// Get the hash of all the parameters for an entity
pub fn hash(&self, entity: Entity) -> u64 {
self.parent_q.get(entity)
.iter()
.flat_map(|c| c.iter().map(|e| self.params_q.get(*e)))
.filter_map(|p| p.ok())
.fold(AHasher::default(), |mut h, p| {
p.hash(&mut h);
h
})
.finish()
}
pub fn get_all(&self, entity: Entity) -> Vec<&ParamValue> {
self.parent_q.get(entity)
.iter()
.flat_map(|c| c.iter().map(|e| self.params_q.get(*e)))
.filter_map(|p| p.ok())
.collect()
}
pub fn get(&self, entity: Entity, name: impl Into<String>) -> Option<&ParamValue> {
self.param_idx
.get(&(OpRef(entity), ParamName(name.into())))
.map(|e| self.params_q.get(*e).unwrap())
}
pub fn get_mut(&mut self, entity: Entity, name: impl Into<String>) -> Option<Mut<ParamValue>> {
self.param_idx
.get(&(OpRef(entity), ParamName(name.into())))
.map(|e| self.params_q.get_mut(*e).unwrap())
}
}
pub trait IntoParams {
fn as_params(&self) -> Vec<ParamBundle>;
}
/// IntoParams for Transform
impl IntoParams for Transform {
fn as_params(&self) -> Vec<ParamBundle> {
vec![
ParamBundle {
name: ParamName("Translation".to_string()),
value: ParamValue::Vec3(self.translation),
order: ParamOrder(0),
..default()
},
ParamBundle {
name: ParamName("Rotation".to_string()),
value: ParamValue::Quat(self.rotation),
order: ParamOrder(1),
..default()
},
ParamBundle {
name: ParamName("Scale".to_string()),
value: ParamValue::Vec3(self.scale),
order: ParamOrder(2),
..default()
},
]
}
}