// CANDY STACK — bounce-pile mode: every beat the whole stack of fat
// pastel bars drops from above and lands staggered ON the kick, each
// touchdown flashing white (the choreography's landing flash channel).
// Pattern taught: the bar material HOOK — the default copper gradient is
// replaced by a soft candy ramp hue-rotated per bar (attr.w = bar01), so
// one gradient fn recolors the whole stack. Tiltshift sells the
// miniature-toy read.
{
    name: "Candy Stack"
    engine: "copperbars"
    seed: 42

    bars: 14
    mode: "pile"
    width: 13.0
    span: 5.5
    thickness: 0.62
    depth: 1.6
    amplitude: 1.4
    weave: 0.9
    metal: 1.6
    drop: 8.0

    beat_pulse: 0.6
    p0: "0.3 + 0.7*bass + 0.4*pulse"
    p1: "0.35 + 0.8*env(phase)"

    // PERFORMANCE DIALS — DANCE/THICK are the engine's own p0/p1 levers;
    // GLOW routes p2 through the glow key.
    p2: 0.5
    dials: [
        {name: "DANCE", bind: "p0", default: 0.5},
        {name: "THICK", bind: "p1", default: 0.5},
        {name: "GLOW", bind: "p2", default: 0.5}
    ]

    color_bg: #x14101c
    color_a: #xffb3d9      // strawberry cream
    color_b: #x7fd4ff      // sky mint
    color_c: #xfffbe8      // sugar-white flash

    cam_orbit: 0.09
    cam_fov: 52.0
    fog: 0.016
    glow: "1.15 * (0.25 + 1.5*p2)"

    // Candy ramp hook: pastel hue per bar, soft band, no hard metal.
    shader: draw.DrawVjFxCopper {
        fx_color: fn(t: float, attr: vec4, normal: vec3, wpos: vec3) -> vec4 {
            let h = attr.w * 5.0 + t * 0.6
            let candy = vec4(
                0.62 + 0.38 * sin(h),
                0.62 + 0.38 * sin(h + 2.094),
                0.62 + 0.38 * sin(h + 4.188),
                1.0
            )
            let band = pow(clamp(sin(t * 3.14159265), 0.0, 1.0), 1.6)
            let sline = 1.0 - clamp(abs(t - 0.7) * 10.0, 0.0, 1.0)
            let spec = pow(sline, 3.0) * (0.4 + self.time_beat.w * 0.7)
            return vec4(candy.xyz * (0.45 + 0.55 * band) + self.col_c.xyz * spec, 1.0)
        }
    }

    stages: [
        {kind: "bloom", threshold: 0.55, strength: 1.2, levels: 3},
        {kind: "tiltshift", focus: 0.52, width: 0.3, levels: 3}
    ]
}