feast-classic/vore.js

function pick(list) {
  if (list.length == 0)
    return null;
  else
    return list[Math.floor(Math.random()*list.length)];
}

function Creature(name = "Creature") {
  this.name = name;
  this.health = 100;
  this.maxHealth = 100;
  this.mass = 80;
  this.bowels = new Bowels();
  this.stomach = new Stomach(this.bowels);
  this.butt = new Butt(this.bowels,this.stomach);
  this.attacks = [];

  this.str = 10;
  this.dex = 10;
  this.con = 10;
}

function Player(name = "Player") {
  Creature.call(this, name);

  this.fullness = function() {
    return this.stomach.fullness();
  };

  this.attacks.push(new punchAttack(this));
  this.attacks.push(new flankAttack(this));

  this.str = 15;
  this.dex = 15;
  this.con = 15;
}

function Anthro() {
  Creature.call(this, name);

  this.mass = 80 * (Math.random()/2 - 0.25 + 1);
  this.build = "ordinary";
  if (this.mass < 70) {
    this.build = "skinny";
  } else if (this.mass > 90) {
    this.build = "fat";
  }

  this.species = pick(["dog","cat","lizard","deer","wolf","fox"]);
  this.description = function() {
    return this.build + " " + this.species;
  };

  this.attacks.push(new punchAttack(this));
  this.attacks.push(new flankAttack(this));

  this.struggles = [];

  this.struggles.push(new plead(this));
  this.struggles.push(new struggle(this));
}

function Fen() {
  Anthro.call(this, name);

  this.build = "loomy";
  this.species = "crux";

  this.attacks = [];

  this.attacks.push(new devourPlayer(this));
  this.attacks.push(new leer(this));
  this.backupAttack = new poke(this);

  this.struggles = [];

  this.struggles.push(new rub(this));
}

function Micro() {
  Creature.call(this, name);

  this.health = 5;
  this.mass = 0.1 * (Math.random()/2 - 0.25 + 1);

  this.species = pick(["dog","cat","lizard","deer","wolf","fox"]);
  this.description = function() {
    return "micro " + this.species;
  };
}

// vore stuff here

class Container {
  constructor(name) {
    this.name = name;

    this.contents = [];
    // health/sec
    this.damageRate = 15*100/86400;

    // kg/sec
    this.digestRate = 80/8640;
  }

  digest(time) {
    let lines = [];
    this.contents.forEach(function(prey) {
      if (prey.health > 0) {
        let damage = Math.min(prey.health, this.damageRate * time);
        prey.health -= damage;
        time -= damage / this.damageRate;

        if (prey.health <= 0) {
          lines.push(this.describeKill(prey));
        }
      }

      if (prey.health <= 0) {
        let digested = Math.min(prey.mass, this.digestRate * time);

        prey.mass -= digested;

        this.fill(digested);
      }

      if (prey.mass <= 0) {
        lines.push(this.describeFinish(prey));
        this.finish(prey);
      }

    }, this);

    this.contents = this.contents.filter(function(prey) {
      return prey.mass > 0;
    });

    return lines;
  }

  feed(prey) {
    this.contents.push(prey);
  }

  fullness() {
    return this.contents.reduce((total, prey) => total + prey.mass, 0);
  }
}

class Stomach extends Container {
  constructor(bowels) {
    super();
    this.bowels = bowels;
  }

  describeKill(prey) {
    return "The " + prey.description() + "'s struggles wane as your stomach overpowers them.";
  }

  describeFinish(prey) {
    return "Your churning guts have reduced a " + prey.description() + " to meaty chyme.";
  }

  fill(amount) {
    this.bowels.add(amount);
  }

  finish(prey) {
    this.bowels.finish(prey);
  }
}

class Butt extends Container {
  constructor(bowels, stomach) {
    super();
    this.bowels = bowels;
    this.stomach = stomach;
  }

  digest(time) {
    this.contents.forEach(function (x) {
      x.timeInButt += time;
    });

    let lines = super.digest(time);

    let pushed = this.contents.filter(prey => prey.timeInButt >= 60 * 30);

    pushed.forEach(function(x) {
      this.stomach.feed(x);
      lines.push("Your winding guts squeeze the " + x.description() + " into your stomach.");
    },this);

    this.contents = this.contents.filter(prey => prey.timeInButt < 60 * 30);

    return lines;
  }

  describeKill(prey) {
    return "The " + prey.description() + " abruptly stops struggling, overpowered by your winding intestines.";
  }

  describeFinish(prey) {
    return "That delicious " + prey.description() + " didn't even make it to your stomach...now they're gone.";
  }

  feed(prey) {
    prey.timeInButt = 0;
    super.feed(prey);
  }

  fill(amount) {
    this.bowels.add(amount);
  }

  finish(prey) {
    this.bowels.finish(prey);
  }
}

function WasteContainer(name) {
  this.name = name;

  this.fullness = 0;

  this.contents = [];

  this.add = function(amount) {
    this.fullness += amount;
  };

  this.finish = function(prey) {
    this.contents.push(prey);
  };
}

function Bowels() {
  WasteContainer.call(this, "Bowels");
}

// PLAYER PREY

function plead(predator) {
  return {
    name: "Plead",
    desc: "Ask very, very nicely for the predator to let you go. More effective if you haven't hurt your predator.",
    struggle: function(player) {
      let escape = Math.random() < predator.health / predator.maxHealth;

      if (escape) {
        return {
          "escape": escape,
          "lines": ["You plead for the " + predator.description() + " to let you free, and they begrudingly agree, horking you up and leaving you shivering on the ground"]
        };
      } else {
        return {
          "escape": escape,
          "lines": ["You plead with the " + predator.description() + " to let you go, but they refuse."]
        };
      }
    }
  };
}

function struggle(predator) {
  return {
    name: "Struggle",
    desc: "Try to squirm free. More effective if you've hurt your predator.",
    struggle: function(player) {
      let escape = Math.random() > predator.health / predator.maxHealth;

      if (escape) {
        return {
          "escape": escape,
          "lines": ["You struggle and squirm, forcing the " + predator.description() + " to hork you up. They groan and stumble away, exhausted by your efforts."]
        };
      } else {
        return {
          "escape": escape,
          "lines": ["You squirm and writhe within the " + predator.description() + " to no avail."]
        };
      }
    }
  };
}

function rub(predator) {
  return {
    name: "Rub",
    desc: "Rub rub rub",
    struggle: function(player) {
      return {
        "escape": false,
        "lines": ["You rub the walls of your predator's belly. At least the " + predator.description() + " is getting something out of this."]
      };
    }
  };
}