jelq

public

an http based roguelike rpg about jelqing

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use std::{fmt::Write as _, ops::ControlFlow, time::Instant};

use axum::http::{StatusCode, header};
use rand::Rng;
use serde_json::json;

use super::{
    Floor, Grip, LUBRICANTS, Lube, Outcome, Payload, Run, Story, Technique,
    balance::{
        ARRIVAL_BONUS, BAND_BONUS, BRANCH_TURN, CAT_TAKES_TOWEL, CHANGING_ROOM_CHILL, DANGER_EQ,
        EQ_BAND, EQ_WOBBLE, EXTENDER_GAIN, FRICTION_BURN, FRICTION_BURN_AT, FRICTION_DRY,
        FRICTION_GRIP, FRICTION_HOLD, FRICTION_MAX, FRICTION_MEDITATE, FRICTION_SPIT, GREED_HOT,
        GREED_WARM, HOLD_EQ, HOT_EQ, MEDITATION_EQ, OBSERVED, PRIAPISM_EQ, PRIAPISM_TURNS,
        PULLED_MUSCLE, PULLED_MUSCLE_INTENSITY, REFLECTION, RING_PRIAPISM, RING_RUPTURE_LINE,
        RUPTURE_HOLD, RUPTURE_LINE, STORAGE_GIRTH, SUSPICION_LIMIT,
    },
    not_extended, round3,
    state::{MumVisit, Observer, Pending},
    techniques::{LubeRule, Profile, Training, Utility},
};
use crate::{headers::SERVER_TIMING, problem::Problem};

impl Run {
    pub fn jelq(
        &mut self,
        techniques: &[Technique],
        intensity: i32,
        lube: Option<Lube>,
        now: Instant,
    ) -> Result<Outcome, Problem> {
        self.check_refractory(now)?;
        if self.story == Story::Pending {
            return Ok(self.branch_offer());
        }
        if self.floor == Floor::Forum {
            return Ok(Outcome::json(
                StatusCode::SEE_OTHER,
                json!({ "detail": "Refer to the forum." }),
            )
            .header(header::LOCATION, super::FORUM_THREAD));
        }
        if self.items.cage {
            return Err(Problem::new(
                StatusCode::LOCKED,
                "caged",
                "The cage is locked. The key is not in the box.",
            ));
        }
        self.here.shopping = false;
        match *techniques {
            [Technique::Utility(utility)] => self.utility(utility, lube, now),
            [Technique::Training(training)] => self.single(training, intensity, lube, now),
            [Technique::Training(a), Technique::Training(b)] => {
                self.combo(a, b, intensity, lube, now)
            }
            [_, _] => Err(Problem::new(
                StatusCode::BAD_REQUEST,
                "combo-invalid",
                "Only training techniques can be combined.",
            )),
            _ => Err(Problem::new(
                StatusCode::BAD_REQUEST,
                "too-many-techniques",
                "Two techniques at most. The server has limits even if you do not.",
            )),
        }
    }

    fn utility(
        &mut self,
        utility: Utility,
        lube: Option<Lube>,
        now: Instant,
    ) -> Result<Outcome, Problem> {
        match utility {
            Utility::Warmup => return self.warm_up(),
            Utility::Ice => return self.ice(),
            Utility::Supplement => return self.supplement(),
            Utility::Meditate => return self.meditate(),
            Utility::Energy => return self.energy(),
            Utility::Edge | Utility::Pump => {}
        }
        if utility == Utility::Pump {
            self.here.edges = 0;
        }
        self.ready(Technique::Utility(utility), lube)?;
        self.check_storage()?;
        self.floor_enemy()?;
        match utility {
            Utility::Edge => self.edge(now),
            _ => self.pump(now),
        }
    }

    fn single(
        &mut self,
        training: Training,
        intensity: i32,
        lube: Option<Lube>,
        now: Instant,
    ) -> Result<Outcome, Problem> {
        self.here.edges = 0;
        self.ready(Technique::Training(training), lube)?;
        self.check_storage()?;
        self.lube_available(lube)?;
        self.floor_enemy()?;
        self.take_lube(lube)?;
        self.chafe(lube);
        self.commit(intensity, lube, now, 1);
        if let ControlFlow::Break(interrupted) = self.mishaps(training, intensity)? {
            return Ok(interrupted);
        }
        if let ControlFlow::Break(interrupted) = self.hazards(intensity)? {
            return Ok(interrupted);
        }
        let outcome = self.roll(training, intensity, lube)?;
        Ok(self.gossip(outcome))
    }

    fn combo(
        &mut self,
        a: Training,
        b: Training,
        intensity: i32,
        lube: Option<Lube>,
        now: Instant,
    ) -> Result<Outcome, Problem> {
        if a == b {
            return Err(Problem::new(
                StatusCode::BAD_REQUEST,
                "combo-invalid",
                "A technique cannot be combined with itself. The server has checked.",
            ));
        }
        self.here.edges = 0;
        self.ready(Technique::Training(a), lube)?;
        self.ready(Technique::Training(b), lube)?;
        self.check_storage()?;
        self.lube_available(lube)?;
        self.floor_enemy()?;
        self.take_lube(lube)?;
        self.chafe(lube);
        self.commit(intensity, lube, now, 2);
        for training in [a, b] {
            if let ControlFlow::Break(interrupted) = self.mishaps(training, intensity)? {
                return Ok(interrupted);
            }
        }
        if let ControlFlow::Break(interrupted) = self.hazards(intensity)? {
            return Ok(interrupted);
        }

        let mut statuses = Vec::new();
        for training in [a, b] {
            let result = self.roll(training, intensity, lube);
            if self.ended.is_some() {
                return result;
            }
            let status = match result {
                Ok(outcome) => self.gossip(outcome).status,
                Err(problem) => problem.status(),
            };
            statuses.push((training, status));
        }

        let mut xml = String::from(
            "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<D:multistatus xmlns:D=\"DAV:\">\n",
        );
        for (training, status) in statuses {
            let _ = write!(
                xml,
                "  <D:response>\n    <D:href>{}?technique={}</D:href>\n    <D:status>HTTP/1.1 {} {}</D:status>\n  </D:response>\n",
                self.path(""),
                training.name(),
                status.as_u16(),
                crate::problem::reason(status),
            );
        }
        xml.push_str(
            "  <D:responsedescription>Each technique has been reported separately.</D:responsedescription>\n</D:multistatus>\n",
        );
        Ok(Outcome::raw(
            StatusCode::MULTI_STATUS,
            "application/xml; charset=utf-8",
            xml,
        ))
    }

    fn ready(&self, technique: Technique, lube: Option<Lube>) -> Result<(), Problem> {
        self.access(technique)?;
        match technique {
            Technique::Training(training) => Self::check_lube(training, lube),
            Technique::Utility(_) => Ok(()),
        }
    }

    /// Whether the run could attempt the technique now, ignoring the lubricant.
    fn access(&self, technique: Technique) -> Result<(), Problem> {
        if technique == Technique::Training(Training::Uli) && !self.uli_taught {
            return Err(Problem::new(
                StatusCode::FORBIDDEN,
                "technique-locked",
                "uli is discussed on the forum, in a thread from 2009, by a man who never posted again. You have not found the reply.",
            ));
        }
        if !self.warmed_up {
            return Err(Problem::new(
                StatusCode::PRECONDITION_FAILED,
                "cold-start",
                "Warm-up was skipped. The server has noted this.",
            )
            .with("technique", Utility::Warmup.name()));
        }
        match technique {
            Technique::Utility(Utility::Pump) if !self.items.pump_pro => Err(Problem::new(
                StatusCode::FAILED_DEPENDENCY,
                "no-pump",
                "The pump technique depends on a pump.",
            )),
            Technique::Utility(_) => Ok(()),
            Technique::Training(training) => match training.profile().foreskin {
                Some((min, max)) => self.check_foreskin(min, max),
                None => Ok(()),
            },
        }
    }

    fn check_lube(training: Training, lube: Option<Lube>) -> Result<(), Problem> {
        match (training.profile().lube, lube) {
            (LubeRule::Required, None) => Err(Problem::new(
                StatusCode::UNSUPPORTED_MEDIA_TYPE,
                "lubricant-required",
                format!(
                    "The {} technique requires a lubricant. None was declared.",
                    training.name()
                ),
            )
            .with("lubricants", json!(LUBRICANTS))),
            (LubeRule::Forbidden, Some(_)) => Err(Problem::new(
                StatusCode::UNSUPPORTED_MEDIA_TYPE,
                "lubricant-declared",
                format!(
                    "The {} technique was requested. A lubricant was declared.",
                    training.name()
                ),
            )),
            _ => Ok(()),
        }
    }

    /// One unit of whatever was declared. Spit is free and the tap is always on.
    fn lube_available(&self, lube: Option<Lube>) -> Result<(), Problem> {
        let (held, name) = match lube {
            None | Some(Lube::Spit) => return Ok(()),
            Some(Lube::BabyOil) => (&self.items.baby_oil, "baby-oil"),
            Some(Lube::CoconutOil) => (&self.items.coconut_oil, "coconut-oil"),
            Some(Lube::Lotion) => (&self.items.lotion, "lotion"),
            Some(Lube::Vaseline) => (&self.items.vaseline, "vaseline"),
        };
        if *held == 0 {
            return Err(Problem::new(
                StatusCode::UNSUPPORTED_MEDIA_TYPE,
                "lubricant-exhausted",
                format!("{name} was declared, but the bottle is empty."),
            ));
        }
        Ok(())
    }

    fn take_lube(&mut self, lube: Option<Lube>) -> Result<(), Problem> {
        self.lube_available(lube)?;
        let held = match lube {
            None | Some(Lube::Spit) => return Ok(()),
            Some(Lube::BabyOil) => &mut self.items.baby_oil,
            Some(Lube::CoconutOil) => &mut self.items.coconut_oil,
            Some(Lube::Lotion) => &mut self.items.lotion,
            Some(Lube::Vaseline) => &mut self.items.vaseline,
        };
        *held -= 1;
        Ok(())
    }

    /// The techniques a JELQ could use right now without being refused before the roll.
    pub fn techniques_now(&self, now: Instant) -> Vec<Technique> {
        let blocked = !self.floor.timed()
            || self.items.cage
            || self.refractory_until.is_some_and(|until| now < until);
        if blocked {
            return Vec::new();
        }
        Technique::ALL
            .into_iter()
            .filter(|&technique| match technique {
                Technique::Utility(Utility::Warmup) => true,
                Technique::Utility(Utility::Ice) => self.items.ice_packs > 0,
                Technique::Utility(Utility::Supplement) => self.items.supplements > 0,
                Technique::Utility(Utility::Meditate) => !self.here.meditated,
                Technique::Utility(Utility::Energy) => self.items.energy_drinks > 0,
                _ => self.access(technique).is_ok() && self.check_storage().is_ok(),
            })
            .collect()
    }

    fn check_foreskin(&self, min: f64, max: f64) -> Result<(), Problem> {
        let Some(f) = self.foreskin else {
            if min <= 0.0 {
                return Ok(());
            }
            return Err(Problem::new(
                StatusCode::GONE,
                "foreskin-gone",
                "This technique requires a foreskin. The foreskin is gone.",
            )
            .header(header::CONTENT_LOCATION, self.path("/foreskin")));
        };
        if f < min {
            return Err(Problem::new(
                StatusCode::LENGTH_REQUIRED,
                "foreskin-insufficient",
                format!(
                    "The selected technique requires {min:.1} units of foreskin. {f:.2} units are available. The server has noted the shortfall."
                ),
            )
            .with("required", min));
        }
        if f > max {
            return Err(Problem::new(
                StatusCode::PAYLOAD_TOO_LARGE,
                "foreskin-excessive",
                format!(
                    "The selected technique tolerates at most {max:.1} units of foreskin. {f:.2} units are present."
                ),
            )
            .with("maximum", max));
        }
        Ok(())
    }

    fn check_storage(&self) -> Result<(), Problem> {
        if self.items.extender && self.girth > STORAGE_GIRTH {
            return Err(Problem::new(
                StatusCode::INSUFFICIENT_STORAGE,
                "jeans-full",
                "The jeans are full. The extender is occupying the remaining storage.",
            )
            .with("extender", self.path("/inventory/extender")));
        }
        Ok(())
    }

    fn chafe(&mut self, lube: Option<Lube>) {
        let mut friction = match lube {
            None => FRICTION_DRY,
            Some(Lube::Spit) => FRICTION_SPIT,
            Some(_) => 0,
        };
        if friction > 0 && self.jelq_grip.is_some_and(|grip| grip != self.grip) {
            friction -= FRICTION_GRIP;
        }
        self.jelq_grip = Some(self.grip);
        self.friction = (self.friction + friction).min(FRICTION_MAX);
        if self.friction >= FRICTION_BURN_AT
            && !self.conditions.friction_burn
            && self.chance(FRICTION_BURN)
        {
            self.conditions.friction_burn = true;
        }
    }

    pub(super) fn commit(&mut self, intensity: i32, lube: Option<Lube>, now: Instant, cost: i32) {
        self.touch();
        self.turn += 1;
        self.here.turns += 1;
        self.realise();
        if self.items.extender {
            self.length += EXTENDER_GAIN;
        }
        self.stamina -= cost + i32::from(lube == Some(Lube::Lotion));
        if self.stamina <= 0 {
            self.exhaust(now);
        }
        let chill = if self.floor == Floor::ChangingRoom {
            CHANGING_ROOM_CHILL
        } else {
            0
        };
        let wobble = self.rng.random_range(-EQ_WOBBLE..=EQ_WOBBLE);
        self.eq = (self.eq + intensity * 2 - 6 - chill + wobble).clamp(0, 100);

        let mut suspicion = intensity / 5 + i32::from(lube == Some(Lube::Vaseline));
        if matches!(self.floor, Floor::ChangingRoom | Floor::Nans) {
            suspicion *= 2;
        }
        if self.floor == Floor::Nans && lube == Some(Lube::CoconutOil) {
            suspicion += 2;
        }
        let was_below = self.suspicion < SUSPICION_LIMIT;
        self.suspicion =
            u8::try_from((i32::from(self.suspicion) + suspicion).min(i32::from(SUSPICION_LIMIT)))
                .unwrap_or(SUSPICION_LIMIT);

        if intensity >= PULLED_MUSCLE_INTENSITY
            && !self.conditions.pulled_muscle
            && self.chance(PULLED_MUSCLE)
        {
            self.conditions.pulled_muscle = true;
            self.stamina = self.stamina.min(self.max_stamina());
        }
        self.settle(was_below);
    }

    /// The part of a turn the house takes part in, whatever the action was.
    pub(super) fn settle(&mut self, was_below: bool) {
        self.maybe_summon_mum(was_below);
        if let Some(observer) = self.floor.observer()
            && self.chance(OBSERVED)
        {
            self.observed = Some(observer);
            self.shame += 1;
            if observer == Observer::Cat && self.chance(CAT_TAKES_TOWEL) {
                self.here.towel_stolen = true;
            }
        }
        if self.items.ring && self.eq > HOT_EQ && self.chance(RING_PRIAPISM) {
            self.conditions.priapism_turns = PRIAPISM_TURNS;
        }
        if self.conditions.priapism_turns > 0 {
            self.conditions.priapism_turns -= 1;
            self.eq = self.eq.max(PRIAPISM_EQ);
        }
        if self.turn == BRANCH_TURN && self.story == Story::Unopened {
            self.story = Story::Pending;
            self.notices
                .push("Somewhere, a forum thread from 2009 still has replies.");
        }
    }

    /// HOLD. A pause between strokes, offered when the band has been left or the stamina is gone.
    pub fn can_hold(&self) -> bool {
        self.eq > DANGER_EQ || self.stamina <= 2
    }

    pub fn hold(&mut self, now: Instant) -> Result<Outcome, Problem> {
        self.check_refractory(now)?;
        if self.story == Story::Pending {
            return Ok(self.branch_offer());
        }
        if self.items.cage {
            return Err(Problem::new(
                StatusCode::LOCKED,
                "caged",
                "The cage is locked. The key is not in the box.",
            ));
        }
        if self.chance(RUPTURE_HOLD) {
            return Err(self.rupture());
        }
        self.touch();
        self.turn += 1;
        self.here.turns += 1;
        self.realise();
        let was_below = self.suspicion < SUSPICION_LIMIT;
        if self.chance(REFLECTION) {
            self.eq = 0;
            self.shame += 1;
            self.notices
                .push("the count reached ten, and then the reflection started");
        } else {
            self.eq = (self.eq - HOLD_EQ).clamp(0, 100);
        }
        self.stamina = (self.stamina + 1).min(self.max_stamina());
        self.shed(FRICTION_HOLD);
        self.settle(was_below);
        Ok(Outcome::empty(StatusCode::NO_CONTENT))
    }

    /// The breathing technique from the forum's replies. It spends no stamina and the turn is
    /// not the floor's, but each floor allows it once.
    fn meditate(&mut self) -> Result<Outcome, Problem> {
        if self.here.meditated {
            return Err(Problem::new(
                StatusCode::CONFLICT,
                "already-meditated",
                "This floor has had its meditation.",
            ));
        }
        self.here.meditated = true;
        self.reset_eq(self.eq - MEDITATION_EQ);
        self.shed(FRICTION_MEDITATE);
        self.touch();
        Ok(Outcome::json(
            StatusCode::OK,
            json!({
                "detail": "In through the nose, out through the mouth. EQ falls by ten.",
            }),
        ))
    }

    pub(super) fn maybe_summon_mum(&mut self, was_below: bool) {
        if !self.floor.has_mum() || self.mum.is_some() {
            return;
        }
        let summoned = was_below && self.suspicion == SUSPICION_LIMIT;
        let mut visits = u32::from(self.suspicion) + 1;
        if self.here.brother_told {
            visits *= 2;
        }
        if summoned || self.rng.random_ratio(visits, super::balance::MUM_VISIT) {
            let errand = self.errand(summoned);
            let nonce = self.fresh_nonce();
            self.mum = Some(MumVisit {
                errand,
                nonce,
                strikes: 0,
                knocked: false,
            });
        }
    }

    fn roll(
        &mut self,
        training: Training,
        intensity: i32,
        lube: Option<Lube>,
    ) -> Result<Outcome, Problem> {
        let profile = training.profile();
        let natural: i32 = self.rng.random_range(1..=20);
        let band = if EQ_BAND.contains(&self.eq) {
            BAND_BONUS
        } else {
            0
        };
        let grip = match (self.grip, training) {
            (Grip::Underhand, Training::Stretch) => 2,
            (Grip::Underhand, Training::Wet) => -1,
            _ => 0,
        };
        let arrival = if self.here.warm_arrival {
            self.here.warm_arrival = false;
            ARRIVAL_BONUS
        } else {
            0
        };
        let modifier = lube.map_or(0, Lube::modifier) + band + grip + arrival;
        let dc = profile.dc + intensity / 3;
        let total = natural + modifier;
        let timing = format!("roll;desc=\"d20{modifier:+} vs {dc}\";dur={natural}");
        let timed = |p: Problem| p.header(SERVER_TIMING, &timing);

        let (length, girth) = self.scaled_gains(&profile, intensity);
        let burn = self.burn();
        let rupture_line = if self.items.ring {
            RING_RUPTURE_LINE
        } else {
            RUPTURE_LINE
        };

        if natural == 1 {
            return Err(timed(self.critical_failure(training, &profile)));
        }
        if natural == 2 && self.eq > DANGER_EQ - burn {
            return Err(timed(self.rupture()));
        }
        if self.eq > rupture_line - burn && total < dc {
            return Err(timed(self.rupture()));
        }
        if natural == 20 {
            self.gain(length * 2.0, girth * 2.0, profile.foreskin_growth);
            return Ok(Outcome::json(
                StatusCode::PERMANENT_REDIRECT,
                json!({
                    "detail": "Your length has moved permanently.",
                    "length": round3(length * 2.0),
                    "girth": round3(girth * 2.0),
                }),
            )
            .header(header::LOCATION, self.path("/length"))
            .header(SERVER_TIMING, timing));
        }
        if total < dc - 3 {
            return Err(timed(not_extended()));
        }
        if total < dc {
            return Ok(Outcome::empty(StatusCode::NO_CONTENT).header(SERVER_TIMING, timing));
        }

        let outcome = if self.eq < *EQ_BAND.start() {
            self.gain(length / 2.0, girth / 2.0, profile.foreskin_growth);
            Outcome::json(
                StatusCode::PARTIAL_CONTENT,
                json!({
                    "detail": "Partial gains were applied. EQ was below the band.",
                    "length": round3(length / 2.0),
                    "girth": round3(girth / 2.0),
                }),
            )
        } else if total >= dc + 5 {
            self.gain(length, girth, profile.foreskin_growth);
            Outcome::json(
                StatusCode::OK,
                json!({
                    "detail": "Gains were applied.",
                    "length": round3(length),
                    "girth": round3(girth),
                }),
            )
        } else {
            let eta = self.rng.random_range(1..=4);
            self.pending.push(Pending {
                due: self.turn + eta,
                length,
                girth,
            });
            self.gain(0.0, 0.0, profile.foreskin_growth);
            Outcome::json(
                StatusCode::ACCEPTED,
                json!({
                    "detail": "Gains have been queued. They may arrive.",
                    "eta_turns": eta,
                }),
            )
        };
        Ok(outcome.header(SERVER_TIMING, timing))
    }

    fn scaled_gains(&self, profile: &Profile, intensity: i32) -> (f64, f64) {
        let scale = f64::from(intensity);
        let (mut length, mut girth) = (profile.length * scale, profile.girth * scale);
        let greed = if self.eq > HOT_EQ {
            GREED_HOT
        } else if self.eq > DANGER_EQ {
            GREED_WARM
        } else {
            1.0
        };
        length *= greed;
        girth *= greed;
        if self.here.teapot {
            length *= 0.5;
            girth *= 1.5;
        }
        if self.items.ring {
            girth *= 2.0;
        }
        if self.conditions.friction_burn {
            length *= 0.5;
            girth *= 0.5;
        }
        (length, girth)
    }

    fn critical_failure(&mut self, training: Training, profile: &Profile) -> Problem {
        let uses_foreskin = profile.foreskin.is_some_and(|(min, _)| min > 0.0);
        if uses_foreskin && self.foreskin.is_some() {
            self.foreskin = None;
            self.shame += 25;
            return Problem::new(
                StatusCode::GONE,
                "foreskin-lost",
                "The technique has removed the foreskin. It will not be returning.",
            )
            .header(header::CONTENT_LOCATION, self.path("/foreskin"));
        }
        if self.eq > DANGER_EQ - self.burn() {
            return self.rupture();
        }
        if training == Training::Stretch && !self.here.teapot {
            self.here.teapot = true;
            self.items.teapot_spout = true;
            self.shame += 5;
            return Problem::new(
                StatusCode::IM_A_TEAPOT,
                "teapot",
                "The subject is now short and stout. Length gains are halved for the rest of the floor.",
            );
        }
        if training == Training::Uli && !self.conditions.peyronie {
            self.conditions.peyronie = true;
            self.shame += 5;
            return Problem::new(
                StatusCode::MISDIRECTED_REQUEST,
                "curvature",
                "A curvature has developed. Techniques will land slightly to the left until a professional is consulted.",
            );
        }
        not_extended()
    }

    fn gossip(&mut self, mut outcome: Outcome) -> Outcome {
        let reportable = matches!(outcome.status.as_u16(), 200 | 202 | 206);
        if !self.here.brother_told || !reportable {
            return outcome;
        }
        self.here.brother_told = false;
        outcome.status = StatusCode::ALREADY_REPORTED;
        if let Payload::Json(body) = &mut outcome.payload {
            body["detail"] = json!("Your brother has already told Mum.");
        }
        outcome
    }
}

1	use std::{fmt::Write as _, ops::ControlFlow, time::Instant};
2
3	use axum::http::{StatusCode, header};
4	use rand::Rng;
5	use serde_json::json;
6
7	use super::{
8	Floor, Grip, LUBRICANTS, Lube, Outcome, Payload, Run, Story, Technique,
9	balance::{
10	ARRIVAL_BONUS, BAND_BONUS, BRANCH_TURN, CAT_TAKES_TOWEL, CHANGING_ROOM_CHILL, DANGER_EQ,
11	EQ_BAND, EQ_WOBBLE, EXTENDER_GAIN, FRICTION_BURN, FRICTION_BURN_AT, FRICTION_DRY,
12	FRICTION_GRIP, FRICTION_HOLD, FRICTION_MAX, FRICTION_MEDITATE, FRICTION_SPIT, GREED_HOT,
13	GREED_WARM, HOLD_EQ, HOT_EQ, MEDITATION_EQ, OBSERVED, PRIAPISM_EQ, PRIAPISM_TURNS,
14	PULLED_MUSCLE, PULLED_MUSCLE_INTENSITY, REFLECTION, RING_PRIAPISM, RING_RUPTURE_LINE,
15	RUPTURE_HOLD, RUPTURE_LINE, STORAGE_GIRTH, SUSPICION_LIMIT,
16	},
17	not_extended, round3,
18	state::{MumVisit, Observer, Pending},
19	techniques::{LubeRule, Profile, Training, Utility},
20	};
21	use crate::{headers::SERVER_TIMING, problem::Problem};
22
23	impl Run {
24	pub fn jelq(
25	&mut self,
26	techniques: &[Technique],
27	intensity: i32,
28	lube: Option<Lube>,
29	now: Instant,
30	) -> Result<Outcome, Problem> {
31	self.check_refractory(now)?;
32	if self.story == Story::Pending {
33	return Ok(self.branch_offer());
34	}
35	if self.floor == Floor::Forum {
36	return Ok(Outcome::json(
37	StatusCode::SEE_OTHER,
38	json!({ "detail": "Refer to the forum." }),
39	)
40	.header(header::LOCATION, super::FORUM_THREAD));
41	}
42	if self.items.cage {
43	return Err(Problem::new(
44	StatusCode::LOCKED,
45	"caged",
46	"The cage is locked. The key is not in the box.",
47	));
48	}
49	self.here.shopping = false;
50	match *techniques {
51	[Technique::Utility(utility)] => self.utility(utility, lube, now),
52	[Technique::Training(training)] => self.single(training, intensity, lube, now),
53	[Technique::Training(a), Technique::Training(b)] => {
54	self.combo(a, b, intensity, lube, now)
55	}
56	[_, _] => Err(Problem::new(
57	StatusCode::BAD_REQUEST,
58	"combo-invalid",
59	"Only training techniques can be combined.",
60	)),
61	_ => Err(Problem::new(
62	StatusCode::BAD_REQUEST,
63	"too-many-techniques",
64	"Two techniques at most. The server has limits even if you do not.",
65	)),
66	}
67	}
68
69	fn utility(
70	&mut self,
71	utility: Utility,
72	lube: Option<Lube>,
73	now: Instant,
74	) -> Result<Outcome, Problem> {
75	match utility {
76	Utility::Warmup => return self.warm_up(),
77	Utility::Ice => return self.ice(),
78	Utility::Supplement => return self.supplement(),
79	Utility::Meditate => return self.meditate(),
80	Utility::Energy => return self.energy(),
81	Utility::Edge \| Utility::Pump => {}
82	}
83	if utility == Utility::Pump {
84	self.here.edges = 0;
85	}
86	self.ready(Technique::Utility(utility), lube)?;
87	self.check_storage()?;
88	self.floor_enemy()?;
89	match utility {
90	Utility::Edge => self.edge(now),
91	_ => self.pump(now),
92	}
93	}
94
95	fn single(
96	&mut self,
97	training: Training,
98	intensity: i32,
99	lube: Option<Lube>,
100	now: Instant,
101	) -> Result<Outcome, Problem> {
102	self.here.edges = 0;
103	self.ready(Technique::Training(training), lube)?;
104	self.check_storage()?;
105	self.lube_available(lube)?;
106	self.floor_enemy()?;
107	self.take_lube(lube)?;
108	self.chafe(lube);
109	self.commit(intensity, lube, now, 1);
110	if let ControlFlow::Break(interrupted) = self.mishaps(training, intensity)? {
111	return Ok(interrupted);
112	}
113	if let ControlFlow::Break(interrupted) = self.hazards(intensity)? {
114	return Ok(interrupted);
115	}
116	let outcome = self.roll(training, intensity, lube)?;
117	Ok(self.gossip(outcome))
118	}
119
120	fn combo(
121	&mut self,
122	a: Training,
123	b: Training,
124	intensity: i32,
125	lube: Option<Lube>,
126	now: Instant,
127	) -> Result<Outcome, Problem> {
128	if a == b {
129	return Err(Problem::new(
130	StatusCode::BAD_REQUEST,
131	"combo-invalid",
132	"A technique cannot be combined with itself. The server has checked.",
133	));
134	}
135	self.here.edges = 0;
136	self.ready(Technique::Training(a), lube)?;
137	self.ready(Technique::Training(b), lube)?;
138	self.check_storage()?;
139	self.lube_available(lube)?;
140	self.floor_enemy()?;
141	self.take_lube(lube)?;
142	self.chafe(lube);
143	self.commit(intensity, lube, now, 2);
144	for training in [a, b] {
145	if let ControlFlow::Break(interrupted) = self.mishaps(training, intensity)? {
146	return Ok(interrupted);
147	}
148	}
149	if let ControlFlow::Break(interrupted) = self.hazards(intensity)? {
150	return Ok(interrupted);
151	}
152
153	let mut statuses = Vec::new();
154	for training in [a, b] {
155	let result = self.roll(training, intensity, lube);
156	if self.ended.is_some() {
157	return result;
158	}
159	let status = match result {
160	Ok(outcome) => self.gossip(outcome).status,
161	Err(problem) => problem.status(),
162	};
163	statuses.push((training, status));
164	}
165
166	let mut xml = String::from(
167	"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<D:multistatus xmlns:D=\"DAV:\">\n",
168	);
169	for (training, status) in statuses {
170	let _ = write!(
171	xml,
172	" <D:response>\n <D:href>{}?technique={}</D:href>\n <D:status>HTTP/1.1 {} {}</D:status>\n </D:response>\n",
173	self.path(""),
174	training.name(),
175	status.as_u16(),
176	crate::problem::reason(status),
177	);
178	}
179	xml.push_str(
180	" <D:responsedescription>Each technique has been reported separately.</D:responsedescription>\n</D:multistatus>\n",
181	);
182	Ok(Outcome::raw(
183	StatusCode::MULTI_STATUS,
184	"application/xml; charset=utf-8",
185	xml,
186	))
187	}
188
189	fn ready(&self, technique: Technique, lube: Option<Lube>) -> Result<(), Problem> {
190	self.access(technique)?;
191	match technique {
192	Technique::Training(training) => Self::check_lube(training, lube),
193	Technique::Utility(_) => Ok(()),
194	}
195	}
196
197	/// Whether the run could attempt the technique now, ignoring the lubricant.
198	fn access(&self, technique: Technique) -> Result<(), Problem> {
199	if technique == Technique::Training(Training::Uli) && !self.uli_taught {
200	return Err(Problem::new(
201	StatusCode::FORBIDDEN,
202	"technique-locked",
203	"uli is discussed on the forum, in a thread from 2009, by a man who never posted again. You have not found the reply.",
204	));
205	}
206	if !self.warmed_up {
207	return Err(Problem::new(
208	StatusCode::PRECONDITION_FAILED,
209	"cold-start",
210	"Warm-up was skipped. The server has noted this.",
211	)
212	.with("technique", Utility::Warmup.name()));
213	}
214	match technique {
215	Technique::Utility(Utility::Pump) if !self.items.pump_pro => Err(Problem::new(
216	StatusCode::FAILED_DEPENDENCY,
217	"no-pump",
218	"The pump technique depends on a pump.",
219	)),
220	Technique::Utility(_) => Ok(()),
221	Technique::Training(training) => match training.profile().foreskin {
222	Some((min, max)) => self.check_foreskin(min, max),
223	None => Ok(()),
224	},
225	}
226	}
227
228	fn check_lube(training: Training, lube: Option<Lube>) -> Result<(), Problem> {
229	match (training.profile().lube, lube) {
230	(LubeRule::Required, None) => Err(Problem::new(
231	StatusCode::UNSUPPORTED_MEDIA_TYPE,
232	"lubricant-required",
233	format!(
234	"The {} technique requires a lubricant. None was declared.",
235	training.name()
236	),
237	)
238	.with("lubricants", json!(LUBRICANTS))),
239	(LubeRule::Forbidden, Some(_)) => Err(Problem::new(
240	StatusCode::UNSUPPORTED_MEDIA_TYPE,
241	"lubricant-declared",
242	format!(
243	"The {} technique was requested. A lubricant was declared.",
244	training.name()
245	),
246	)),
247	_ => Ok(()),
248	}
249	}
250
251	/// One unit of whatever was declared. Spit is free and the tap is always on.
252	fn lube_available(&self, lube: Option<Lube>) -> Result<(), Problem> {
253	let (held, name) = match lube {
254	None \| Some(Lube::Spit) => return Ok(()),
255	Some(Lube::BabyOil) => (&self.items.baby_oil, "baby-oil"),
256	Some(Lube::CoconutOil) => (&self.items.coconut_oil, "coconut-oil"),
257	Some(Lube::Lotion) => (&self.items.lotion, "lotion"),
258	Some(Lube::Vaseline) => (&self.items.vaseline, "vaseline"),
259	};
260	if *held == 0 {
261	return Err(Problem::new(
262	StatusCode::UNSUPPORTED_MEDIA_TYPE,
263	"lubricant-exhausted",
264	format!("{name} was declared, but the bottle is empty."),
265	));
266	}
267	Ok(())
268	}
269
270	fn take_lube(&mut self, lube: Option<Lube>) -> Result<(), Problem> {
271	self.lube_available(lube)?;
272	let held = match lube {
273	None \| Some(Lube::Spit) => return Ok(()),
274	Some(Lube::BabyOil) => &mut self.items.baby_oil,
275	Some(Lube::CoconutOil) => &mut self.items.coconut_oil,
276	Some(Lube::Lotion) => &mut self.items.lotion,
277	Some(Lube::Vaseline) => &mut self.items.vaseline,
278	};
279	*held -= 1;
280	Ok(())
281	}
282
283	/// The techniques a JELQ could use right now without being refused before the roll.
284	pub fn techniques_now(&self, now: Instant) -> Vec<Technique> {
285	let blocked = !self.floor.timed()
286	\|\| self.items.cage
287	\|\| self.refractory_until.is_some_and(\|until\| now < until);
288	if blocked {
289	return Vec::new();
290	}
291	Technique::ALL
292	.into_iter()
293	.filter(\|&technique\| match technique {
294	Technique::Utility(Utility::Warmup) => true,
295	Technique::Utility(Utility::Ice) => self.items.ice_packs > 0,
296	Technique::Utility(Utility::Supplement) => self.items.supplements > 0,
297	Technique::Utility(Utility::Meditate) => !self.here.meditated,
298	Technique::Utility(Utility::Energy) => self.items.energy_drinks > 0,
299	_ => self.access(technique).is_ok() && self.check_storage().is_ok(),
300	})
301	.collect()
302	}
303
304	fn check_foreskin(&self, min: f64, max: f64) -> Result<(), Problem> {
305	let Some(f) = self.foreskin else {
306	if min <= 0.0 {
307	return Ok(());
308	}
309	return Err(Problem::new(
310	StatusCode::GONE,
311	"foreskin-gone",
312	"This technique requires a foreskin. The foreskin is gone.",
313	)
314	.header(header::CONTENT_LOCATION, self.path("/foreskin")));
315	};
316	if f < min {
317	return Err(Problem::new(
318	StatusCode::LENGTH_REQUIRED,
319	"foreskin-insufficient",
320	format!(
321	"The selected technique requires {min:.1} units of foreskin. {f:.2} units are available. The server has noted the shortfall."
322	),
323	)
324	.with("required", min));
325	}
326	if f > max {
327	return Err(Problem::new(
328	StatusCode::PAYLOAD_TOO_LARGE,
329	"foreskin-excessive",
330	format!(
331	"The selected technique tolerates at most {max:.1} units of foreskin. {f:.2} units are present."
332	),
333	)
334	.with("maximum", max));
335	}
336	Ok(())
337	}
338
339	fn check_storage(&self) -> Result<(), Problem> {
340	if self.items.extender && self.girth > STORAGE_GIRTH {
341	return Err(Problem::new(
342	StatusCode::INSUFFICIENT_STORAGE,
343	"jeans-full",
344	"The jeans are full. The extender is occupying the remaining storage.",
345	)
346	.with("extender", self.path("/inventory/extender")));
347	}
348	Ok(())
349	}
350
351	fn chafe(&mut self, lube: Option<Lube>) {
352	let mut friction = match lube {
353	None => FRICTION_DRY,
354	Some(Lube::Spit) => FRICTION_SPIT,
355	Some(_) => 0,
356	};
357	if friction > 0 && self.jelq_grip.is_some_and(\|grip\| grip != self.grip) {
358	friction -= FRICTION_GRIP;
359	}
360	self.jelq_grip = Some(self.grip);
361	self.friction = (self.friction + friction).min(FRICTION_MAX);
362	if self.friction >= FRICTION_BURN_AT
363	&& !self.conditions.friction_burn
364	&& self.chance(FRICTION_BURN)
365	{
366	self.conditions.friction_burn = true;
367	}
368	}
369
370	pub(super) fn commit(&mut self, intensity: i32, lube: Option<Lube>, now: Instant, cost: i32) {
371	self.touch();
372	self.turn += 1;
373	self.here.turns += 1;
374	self.realise();
375	if self.items.extender {
376	self.length += EXTENDER_GAIN;
377	}
378	self.stamina -= cost + i32::from(lube == Some(Lube::Lotion));
379	if self.stamina <= 0 {
380	self.exhaust(now);
381	}
382	let chill = if self.floor == Floor::ChangingRoom {
383	CHANGING_ROOM_CHILL
384	} else {
385	0
386	};
387	let wobble = self.rng.random_range(-EQ_WOBBLE..=EQ_WOBBLE);
388	self.eq = (self.eq + intensity * 2 - 6 - chill + wobble).clamp(0, 100);
389
390	let mut suspicion = intensity / 5 + i32::from(lube == Some(Lube::Vaseline));
391	if matches!(self.floor, Floor::ChangingRoom \| Floor::Nans) {
392	suspicion *= 2;
393	}
394	if self.floor == Floor::Nans && lube == Some(Lube::CoconutOil) {
395	suspicion += 2;
396	}
397	let was_below = self.suspicion < SUSPICION_LIMIT;
398	self.suspicion =
399	u8::try_from((i32::from(self.suspicion) + suspicion).min(i32::from(SUSPICION_LIMIT)))
400	.unwrap_or(SUSPICION_LIMIT);
401
402	if intensity >= PULLED_MUSCLE_INTENSITY
403	&& !self.conditions.pulled_muscle
404	&& self.chance(PULLED_MUSCLE)
405	{
406	self.conditions.pulled_muscle = true;
407	self.stamina = self.stamina.min(self.max_stamina());
408	}
409	self.settle(was_below);
410	}
411
412	/// The part of a turn the house takes part in, whatever the action was.
413	pub(super) fn settle(&mut self, was_below: bool) {
414	self.maybe_summon_mum(was_below);
415	if let Some(observer) = self.floor.observer()
416	&& self.chance(OBSERVED)
417	{
418	self.observed = Some(observer);
419	self.shame += 1;
420	if observer == Observer::Cat && self.chance(CAT_TAKES_TOWEL) {
421	self.here.towel_stolen = true;
422	}
423	}
424	if self.items.ring && self.eq > HOT_EQ && self.chance(RING_PRIAPISM) {
425	self.conditions.priapism_turns = PRIAPISM_TURNS;
426	}
427	if self.conditions.priapism_turns > 0 {
428	self.conditions.priapism_turns -= 1;
429	self.eq = self.eq.max(PRIAPISM_EQ);
430	}
431	if self.turn == BRANCH_TURN && self.story == Story::Unopened {
432	self.story = Story::Pending;
433	self.notices
434	.push("Somewhere, a forum thread from 2009 still has replies.");
435	}
436	}
437
438	/// HOLD. A pause between strokes, offered when the band has been left or the stamina is gone.
439	pub fn can_hold(&self) -> bool {
440	self.eq > DANGER_EQ \|\| self.stamina <= 2
441	}
442
443	pub fn hold(&mut self, now: Instant) -> Result<Outcome, Problem> {
444	self.check_refractory(now)?;
445	if self.story == Story::Pending {
446	return Ok(self.branch_offer());
447	}
448	if self.items.cage {
449	return Err(Problem::new(
450	StatusCode::LOCKED,
451	"caged",
452	"The cage is locked. The key is not in the box.",
453	));
454	}
455	if self.chance(RUPTURE_HOLD) {
456	return Err(self.rupture());
457	}
458	self.touch();
459	self.turn += 1;
460	self.here.turns += 1;
461	self.realise();
462	let was_below = self.suspicion < SUSPICION_LIMIT;
463	if self.chance(REFLECTION) {
464	self.eq = 0;
465	self.shame += 1;
466	self.notices
467	.push("the count reached ten, and then the reflection started");
468	} else {
469	self.eq = (self.eq - HOLD_EQ).clamp(0, 100);
470	}
471	self.stamina = (self.stamina + 1).min(self.max_stamina());
472	self.shed(FRICTION_HOLD);
473	self.settle(was_below);
474	Ok(Outcome::empty(StatusCode::NO_CONTENT))
475	}
476
477	/// The breathing technique from the forum's replies. It spends no stamina and the turn is
478	/// not the floor's, but each floor allows it once.
479	fn meditate(&mut self) -> Result<Outcome, Problem> {
480	if self.here.meditated {
481	return Err(Problem::new(
482	StatusCode::CONFLICT,
483	"already-meditated",
484	"This floor has had its meditation.",
485	));
486	}
487	self.here.meditated = true;
488	self.reset_eq(self.eq - MEDITATION_EQ);
489	self.shed(FRICTION_MEDITATE);
490	self.touch();
491	Ok(Outcome::json(
492	StatusCode::OK,
493	json!({
494	"detail": "In through the nose, out through the mouth. EQ falls by ten.",
495	}),
496	))
497	}
498
499	pub(super) fn maybe_summon_mum(&mut self, was_below: bool) {
500	if !self.floor.has_mum() \|\| self.mum.is_some() {
501	return;
502	}
503	let summoned = was_below && self.suspicion == SUSPICION_LIMIT;
504	let mut visits = u32::from(self.suspicion) + 1;
505	if self.here.brother_told {
506	visits *= 2;
507	}
508	if summoned \|\| self.rng.random_ratio(visits, super::balance::MUM_VISIT) {
509	let errand = self.errand(summoned);
510	let nonce = self.fresh_nonce();
511	self.mum = Some(MumVisit {
512	errand,
513	nonce,
514	strikes: 0,
515	knocked: false,
516	});
517	}
518	}
519
520	fn roll(
521	&mut self,
522	training: Training,
523	intensity: i32,
524	lube: Option<Lube>,
525	) -> Result<Outcome, Problem> {
526	let profile = training.profile();
527	let natural: i32 = self.rng.random_range(1..=20);
528	let band = if EQ_BAND.contains(&self.eq) {
529	BAND_BONUS
530	} else {
531	0
532	};
533	let grip = match (self.grip, training) {
534	(Grip::Underhand, Training::Stretch) => 2,
535	(Grip::Underhand, Training::Wet) => -1,
536	_ => 0,
537	};
538	let arrival = if self.here.warm_arrival {
539	self.here.warm_arrival = false;
540	ARRIVAL_BONUS
541	} else {
542	0
543	};
544	let modifier = lube.map_or(0, Lube::modifier) + band + grip + arrival;
545	let dc = profile.dc + intensity / 3;
546	let total = natural + modifier;
547	let timing = format!("roll;desc=\"d20{modifier:+} vs {dc}\";dur={natural}");
548	let timed = \|p: Problem\| p.header(SERVER_TIMING, &timing);
549
550	let (length, girth) = self.scaled_gains(&profile, intensity);
551	let burn = self.burn();
552	let rupture_line = if self.items.ring {
553	RING_RUPTURE_LINE
554	} else {
555	RUPTURE_LINE
556	};
557
558	if natural == 1 {
559	return Err(timed(self.critical_failure(training, &profile)));
560	}
561	if natural == 2 && self.eq > DANGER_EQ - burn {
562	return Err(timed(self.rupture()));
563	}
564	if self.eq > rupture_line - burn && total < dc {
565	return Err(timed(self.rupture()));
566	}
567	if natural == 20 {
568	self.gain(length * 2.0, girth * 2.0, profile.foreskin_growth);
569	return Ok(Outcome::json(
570	StatusCode::PERMANENT_REDIRECT,
571	json!({
572	"detail": "Your length has moved permanently.",
573	"length": round3(length * 2.0),
574	"girth": round3(girth * 2.0),
575	}),
576	)
577	.header(header::LOCATION, self.path("/length"))
578	.header(SERVER_TIMING, timing));
579	}
580	if total < dc - 3 {
581	return Err(timed(not_extended()));
582	}
583	if total < dc {
584	return Ok(Outcome::empty(StatusCode::NO_CONTENT).header(SERVER_TIMING, timing));
585	}
586
587	let outcome = if self.eq < *EQ_BAND.start() {
588	self.gain(length / 2.0, girth / 2.0, profile.foreskin_growth);
589	Outcome::json(
590	StatusCode::PARTIAL_CONTENT,
591	json!({
592	"detail": "Partial gains were applied. EQ was below the band.",
593	"length": round3(length / 2.0),
594	"girth": round3(girth / 2.0),
595	}),
596	)
597	} else if total >= dc + 5 {
598	self.gain(length, girth, profile.foreskin_growth);
599	Outcome::json(
600	StatusCode::OK,
601	json!({
602	"detail": "Gains were applied.",
603	"length": round3(length),
604	"girth": round3(girth),
605	}),
606	)
607	} else {
608	let eta = self.rng.random_range(1..=4);
609	self.pending.push(Pending {
610	due: self.turn + eta,
611	length,
612	girth,
613	});
614	self.gain(0.0, 0.0, profile.foreskin_growth);
615	Outcome::json(
616	StatusCode::ACCEPTED,
617	json!({
618	"detail": "Gains have been queued. They may arrive.",
619	"eta_turns": eta,
620	}),
621	)
622	};
623	Ok(outcome.header(SERVER_TIMING, timing))
624	}
625
626	fn scaled_gains(&self, profile: &Profile, intensity: i32) -> (f64, f64) {
627	let scale = f64::from(intensity);
628	let (mut length, mut girth) = (profile.length * scale, profile.girth * scale);
629	let greed = if self.eq > HOT_EQ {
630	GREED_HOT
631	} else if self.eq > DANGER_EQ {
632	GREED_WARM
633	} else {
634	1.0
635	};
636	length *= greed;
637	girth *= greed;
638	if self.here.teapot {
639	length *= 0.5;
640	girth *= 1.5;
641	}
642	if self.items.ring {
643	girth *= 2.0;
644	}
645	if self.conditions.friction_burn {
646	length *= 0.5;
647	girth *= 0.5;
648	}
649	(length, girth)
650	}
651
652	fn critical_failure(&mut self, training: Training, profile: &Profile) -> Problem {
653	let uses_foreskin = profile.foreskin.is_some_and(\|(min, _)\| min > 0.0);
654	if uses_foreskin && self.foreskin.is_some() {
655	self.foreskin = None;
656	self.shame += 25;
657	return Problem::new(
658	StatusCode::GONE,
659	"foreskin-lost",
660	"The technique has removed the foreskin. It will not be returning.",
661	)
662	.header(header::CONTENT_LOCATION, self.path("/foreskin"));
663	}
664	if self.eq > DANGER_EQ - self.burn() {
665	return self.rupture();
666	}
667	if training == Training::Stretch && !self.here.teapot {
668	self.here.teapot = true;
669	self.items.teapot_spout = true;
670	self.shame += 5;
671	return Problem::new(
672	StatusCode::IM_A_TEAPOT,
673	"teapot",
674	"The subject is now short and stout. Length gains are halved for the rest of the floor.",
675	);
676	}
677	if training == Training::Uli && !self.conditions.peyronie {
678	self.conditions.peyronie = true;
679	self.shame += 5;
680	return Problem::new(
681	StatusCode::MISDIRECTED_REQUEST,
682	"curvature",
683	"A curvature has developed. Techniques will land slightly to the left until a professional is consulted.",
684	);
685	}
686	not_extended()
687	}
688
689	fn gossip(&mut self, mut outcome: Outcome) -> Outcome {
690	let reportable = matches!(outcome.status.as_u16(), 200 \| 202 \| 206);
691	if !self.here.brother_told \|\| !reportable {
692	return outcome;
693	}
694	self.here.brother_told = false;
695	outcome.status = StatusCode::ALREADY_REPORTED;
696	if let Payload::Json(body) = &mut outcome.payload {
697	body["detail"] = json!("Your brother has already told Mum.");
698	}
699	outcome
700	}
701	}