use specs::Component;
use specs_idvs::IDVStorage;
use vek::*;

// Floats over entity that has had a health change, rising up over time until it vanishes
#[derive(Copy, Clone, Debug)]
pub struct HpFloater {
    pub timer: f32,
    // Numbers of times significant damage has been dealt
    pub hp_change: i32,
    // Used for randomly offseting
    pub rand: f32,
}
#[derive(Clone, Debug, Default)]
pub struct HpFloaterList {
    // Order oldest to newest
    pub floaters: Vec<HpFloater>,
    // Keep from spawning more floaters from same hp change
    // Note: this can't detect a change if equivalent healing and damage take place simultaneously
    pub last_hp: u32,
}
impl Component for HpFloaterList {
    type Storage = IDVStorage<Self>;
}

// Used for smooth interpolation of visual elements that are tied to entity position
#[derive(Copy, Clone, Debug)]
pub struct Interpolated {
    pub pos: Vec3<f32>,
    pub ori: Vec3<f32>,
}
impl Component for Interpolated {
    type Storage = IDVStorage<Self>;
}