aego/modules/gameplay/res/docs/LifetimePoolOriginal.aes

package demo

import (
    "aego/debug"
    "aego/scene"
)

// Spawner drops a ball every 0.3 s; each ball goes back to the pool two seconds later and is reused.
script Spawner {
    @export var Ball AssetRef<Prefab>

    var t float
    var k int

    func Update(dt float) {
        t += dt
        if t >= 0.3 {
            t = 0
            k++
            x := float(k % 7) - 3
            scene.Spawn(Ball, node.WorldPosition() + Vec2{x * 0.6, 0})
        }
    }
}

// Drift sinks a ball faster the longer it lives.
script Drift {
    func Update(dt float) {
        age := 2 - node.Get<Lifetime>().Remaining
        tr := node.Transform2D()
        tr.Position.Y += 6 * age * dt
        node.SetTransform2D(tr)
    }
}

// Fuse shows the seconds left before its node is destroyed.
script Fuse {
    func Update(dt float) {
        p := node.WorldPosition()
        debug.Text(Vec2{p.X - 1, p.Y - 0.8}, "destroyed in " + string(int(node.Get<Lifetime>().Remaining)) + " s", Color{1, 1, 1, 1})
    }
}