proof-engine 0.2.3

Real-time graphics from math: glyphs and particles moved by ODEs, strange attractors and force fields, drawn with HDR bloom on OpenGL.
Documentation 
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// ── Particle Effect Summary ───────────────────────────────────────────────────

pub struct ParticleEffectSummary {
    pub name: String,
    pub emitter_count: u32,
    pub max_particles: u32,
    pub duration: f32,
    pub looping: bool,
    pub has_trails: bool,
    pub has_sub_emitters: bool,
    pub texture_count: u32,
    pub blend_mode: String,
    pub lod_levels: u32,
    pub estimated_cost: f32,
}

impl ParticleEffectSummary {
    pub fn estimate_cost(particles: u32, has_trails: bool, has_sub_emitters: bool) -> f32 {
        let base = particles as f32 * 0.001;
        let trail_mult = if has_trails { 2.0 } else { 1.0 };
        let sub_mult = if has_sub_emitters { 1.5 } else { 1.0 };
        base * trail_mult * sub_mult
    }
    pub fn is_expensive(&self) -> bool { self.estimated_cost > 10.0 }
    pub fn is_cheap(&self) -> bool { self.estimated_cost < 1.0 }
    pub fn performance_grade(&self) -> &'static str {
        if self.is_cheap() { "Light" } else if self.is_expensive() { "Heavy" } else { "Medium" }
    }
}

pub fn particle_system_ready() -> bool { true }
pub fn particle_version() -> &'static str { "ParticleSystemEditor v2.0" }
pub fn max_safe_particles_for_target_fps(target_fps: f32, ms_budget: f32) -> u32 { ((ms_budget / (1000.0 / target_fps)) * 50000.0) as u32 }
pub fn particles_60fps_budget() -> u32 { max_safe_particles_for_target_fps(60.0, 3.0) }
pub fn describe_attractor_type(t: &AttractorType) -> &'static str {
    match t {
        AttractorType::Attract => "Pulls particles toward center",
        AttractorType::Repel => "Pushes particles away from center",
        AttractorType::Vortex => "Spins particles in a spiral",
        AttractorType::Drag => "Slows particle movement",
        AttractorType::Gravity => "Directional gravity pull",
        AttractorType::Wind => "Steady wind force",
    }
}