File src/pool.rs artifact b2e38e41e3 part of check-in 1c4f2f89eb

//! The `GroundPool` entity — a stationary, behavior-carrying field (acid, slow, ...). A pool
//! is NOT an enum of kinds; it's a stationary projectile carrying the same composable behavior
//! list, so "acid pool" and "slow field" are configured *instances*. The `PoolBehavior` trait
//! and dispatch live in `crate::behavior::pool`; concrete ticks live in `crate::pools`.

use macroquad::math::Vec2;

use crate::{
    behavior::pool::PoolBehavior,
    pools::{acid::AcidTick, slow::SlowTick},
    types::Source,
};

#[derive(Clone)]
pub struct GroundPool {
    pub pos: Vec2,
    pub radius: f32,
    pub ttl: f32,
    pub source: Source,
    pub behaviors: Vec<Box<dyn PoolBehavior>>,
}
impl GroundPool {
    pub fn acid(pos: Vec2, potency: f32, source: Source) -> GroundPool {
        GroundPool {
            pos,
            radius: 1.5,
            ttl: 5.0,
            source,
            behaviors: vec![Box::new(AcidTick { potency })],
        }
    }
    pub fn slow(pos: Vec2, radius: f32, factor: f32, source: Source) -> GroundPool {
        GroundPool {
            pos,
            radius,
            ttl: 4.0,
            source,
            behaviors: vec![Box::new(SlowTick { factor })],
        }
    }
}