feast/src/game/combat/conditions.ts

import { Condition, Vigor } from "../combat"
import { Creature } from "../entity"
import { Container } from '../vore'

export class InverseCondition implements Condition {
  allowed (user: Creature, target: Creature): boolean {
    return !this.condition.allowed(user, target)
  }

  constructor (private condition: Condition) {

  }
}

export class CapableCondition implements Condition {
  allowed (user: Creature, target: Creature): boolean {
    return !user.disabled
  }
}

export class UserDrainedVigorCondition implements Condition {
  allowed (user: Creature, target: Creature): boolean {
    return user.vigors[this.vigor] <= 0
  }

  constructor (private vigor: Vigor) {

  }
}

export class TargetDrainedVigorCondition implements Condition {
  allowed (user: Creature, target: Creature): boolean {
    return target.vigors[this.vigor] <= 0
  }

  constructor (private vigor: Vigor) {

  }
}

export class SoloCondition implements Condition {
  allowed (user: Creature, target: Creature): boolean {
    return user === target
  }
}

export class PairCondition implements Condition {
  allowed (user: Creature, target: Creature): boolean {
    return user !== target
  }
}

export class TogetherCondition implements Condition {
  allowed (user: Creature, target: Creature): boolean {
    return user.containedIn === target.containedIn && user !== target
  }
}

export class ContainerCondition implements Condition {
  allowed (user: Creature, target: Creature): boolean {
    return target.containedIn === this.container
  }

  constructor (private container: Container) {

  }
}

export class AllyCondition implements Condition {
  allowed (user: Creature, target: Creature): boolean {
    return user.side === target.side
  }
}

export class EnemyCondition implements Condition {
  allowed (user: Creature, target: Creature): boolean {
    return user.side !== target.side
  }
}