foundryvtt-reve-de-dragon/module/rdd-possession.js

import { RdDRoll } from "./rdd-roll.js";
import { Targets } from "./targets.js";
import { ITEM_TYPES } from "./constants.js";
import { RdDRollResult } from "./rdd-roll-result.js";
import { CARACS } from "./rdd-carac.js";

/* -------------------------------------------- */
/* On part du principe qu'une entité démarre tjs 
une possession via le MJ (ie un joueur ne controle pas une entité)
Donc la compétence Possession ne peut être démarrée que par le MJ.
*/

/* -------------------------------------------- */
export class RdDPossession {

  /* -------------------------------------------- */
  static init() {
  }

  /* -------------------------------------------- */
  static searchPossessionFromEntite(attacker, defender) {
    let poss = attacker.itemTypes[ITEM_TYPES.possession].find(poss => poss.system.victime.actorid == defender.id);
    if (!poss) {
      poss = defender.itemTypes[ITEM_TYPES.possession].find(poss => poss.system.victime.actorid == defender.id);
    }
    return poss && foundry.utils.duplicate(poss) || undefined;
  }

  /* -------------------------------------------- */
  static async onAttaquePossession(target, attacker, competence, suitePossession = undefined) {
    const defender = target.actor;
    const fromEntite = RdDPossession.searchPossessionFromEntite(attacker, defender);
    const isNouvelle = !suitePossession && !fromEntite;
    const possession = (suitePossession ?? fromEntite ?? (await RdDPossession.createPossession(attacker, defender)));

    RdDPossession.$updateEtatPossession(possession)

    let rollData = {
      mode: "attaque",
      isECNIDefender: false,
      competence: competence,
      possession: possession,
      attacker: attacker,
      defender: defender,
      targetToken: Targets.extractTokenData(target)
    };
    RdDPossession.selectCompetenceDraconicOuPossession(rollData, attacker)

    await RdDPossession.$rollAttaquePossession(attacker, rollData, isNouvelle);
  }

  /* -------------------------------------------- */
  static async onConjurerPossession(attacker, possession) {
    possession = foundry.utils.duplicate(possession);
    RdDPossession.$updateEtatPossession(possession)

    const defender = game.actors.get(possession.system.entite.actorid);
    let rollData = {
      mode: "attaque",
      isECNIDefender: true,
      possession: possession,
      attacker: attacker,
      defender: defender,
    };
    RdDPossession.selectCompetenceDraconicOuPossession(rollData, attacker)

    await RdDPossession.$rollAttaquePossession(attacker, rollData);
  }

  /* -------------------------------------------- */
  static async onDefensePossession(attackerId, defenderId, possessionId) {
    let attacker = game.actors.get(attackerId)
    let possession = attacker?.getPossession(possessionId)
    defenderId = defenderId ?? possession?.system.entite.actorid ?? undefined
    let defender = game.actors.get(defenderId)
    possession = possession ?? defender?.getPossession(possessionId) ?? undefined;

    if (!possession) {
      ui.notifications.warn("Une erreur s'est produite : Aucune possession trouvée !!")
      return
    }
    possession = foundry.utils.duplicate(possession)
    // Update for draconic roll
    let rollData = {
      mode: "defense",
      isECNIDefender: defender.type == "entite",
      possession: possession,
      attacker: attacker,
      defender: defender,
    }
    RdDPossession.selectCompetenceDraconicOuPossession(rollData, defender)
    rollData.diffLibre = RdDPossession.getInfoAttaque(rollData).diffLibre

    await RdDPossession.$rollDefensePossession(defender, rollData);
  }

  static selectCompetenceDraconicOuPossession(rollData, rollingActor) {
    rollData.competence = rollingActor.getBestDraconic({possession: true})
    if (rollingActor.isCreatureOuEntite()) {
      rollData.carac = rollingActor.system.carac
      rollData.competence.system.defaut_carac = CARACS.REVE
      rollData.selectedCarac = rollingActor.system.carac.reve
    }
    else {
      rollData.forceCarac = rollingActor.getCaracReveActuel()
      rollData.selectedCarac = rollData.forceCarac[CARACS.REVE_ACTUEL]
      rollData.competence.system.defaut_carac = CARACS.REVE_ACTUEL
    }
  }

  /* -------------------------------------------- */
  static async $rollAttaquePossession(attacker, rollData, isNouvelle = false) {
    const dialog = await RdDRoll.create(attacker, rollData,
      { html: 'systems/foundryvtt-reve-de-dragon/templates/dialog-roll-competence.hbs' },
      {
        name: 'jet-possession',
        label: rollData.isECNIDefender ? 'Conjurer la possession' : 'Possession',
        callbacks: [
          { action: async (r) => await RdDPossession.$onRollPossession(r, isNouvelle) },
        ]
      });
    dialog.render(true);
  }

  /* -------------------------------------------- */
  static async $onRollPossession(rollData, isNouvelle = false) {
    rollData.possession.isSuccess = rollData.rolled.isSuccess;
    RdDPossession.$updateEtatPossession(rollData.possession, rollData);
    if (isNouvelle) {
      // Creer la possession sur le defenseur
      await rollData.defender.createEmbeddedDocuments('Item', [rollData.possession.toObject()])
    }
    const possession = (rollData.isECNIDefender ? rollData.attacker : rollData.defender).getPossession(rollData.possession.system.possessionid)
    RdDPossession.storePossessionAttaque(possession, rollData)
    await RdDRollResult.displayRollData(rollData, rollData.defender, 'chat-resultat-possession-v1.hbs');
  }

  /* -------------------------------------------- */
  static async $rollDefensePossession(defender, rollData) {
    const dialog = await RdDRoll.create(defender, rollData,
      { html: 'systems/foundryvtt-reve-de-dragon/templates/dialog-roll-defense-possession.hbs' },
      {
        name: 'possession',
        label: 'Conjurer une Possession',
        callbacks: [
          { action: async (r) => await RdDPossession.$onRollConjuration(r) }
        ]
      }
    );
    dialog.render(true);
  }

  /* -------------------------------------------- */
  static async $onRollConjuration(rollData) {
    let victime = game.actors.get(rollData.possession.system.victime.actorid)
    let compteur = rollData.possession.system.compteur
    if (!rollData.rolled.isSuccess) {
      if (rollData.isECNIDefender) {
        compteur--
      } else {
        compteur++
      }
    }
    const possession = victime.getPossession(rollData.possession.system.possessionid)
    await possession.update({
      system: {
        compteur: compteur,
        entite: { diffLibre: 0, finesse: false },
        victime: { diffLibre: 0, finesse: false }
      }
    })
    rollData.possession = possession
    RdDPossession.$updateEtatPossession(rollData.possession)

    await RdDRollResult.displayRollData(rollData, rollData.attacker, 'chat-resultat-possession-v1.hbs')
    if (rollData.possession.isPosseder || rollData.possession.isConjurer) {
      // conjuration
      await victime.deleteEmbeddedDocuments("Item", [rollData.possession._id])
    }
  }

  /* -------------------------------------------- */
  static $updateEtatPossession(possession) {
    possession.ptsConjuration = 0
    possession.ptsPossession = 0
    console.log("Possession", possession)
    if (possession.system.compteur > 0) {
      possession.ptsPossession = possession.system.compteur
    }
    if (possession.system.compteur < 0) {
      possession.ptsConjuration = Math.abs(possession.system.compteur)
    }
    possession.isPosseder = false
    possession.isConjurer = false
    if (possession.ptsPossession >= 2) {
      possession.isPosseder = true
    }
    if (possession.ptsConjuration >= 2) {
      possession.isConjurer = true
    }
  }

  /* -------------------------------------------- */
  static isPossessionFinesse(rollData) {
    return RdDPossession.getInfoAttaque(rollData).finesse
  }
  /* -------------------------------------------- */
  static getInfoAttaque(rollData) {
    return rollData.possession.system[rollData.isECNIDefender ? 'victime' : 'entite'];
  }
  /* -------------------------------------------- */
  static isDefensePossession(rollData) {
    return rollData.possession && rollData.mode == "defense"
  }
  /* -------------------------------------------- */
  static storePossessionAttaque(possession, rollData = undefined) {
    const attaquant = rollData?.isECNIDefender ? 'victime' : 'entite'
    possession.update({
      [`system.${attaquant}`]: {
        diffLibre: rollData?.diffLibre ?? 0,
        finesse: rollData?.rolled.isPart ?? false
      }
    })
  }

  /* -------------------------------------------- */
  static async createPossession(attacker, defender) {
    return await Item.create({
      name: `Possession de ${entite.name}`,
      type: ITEM_TYPES.possession,
      img: RDD_CONFIG.icons.possession,
      system: {
        typepossession: attacker.name,
        possede: false,
        possessionid: foundry.utils.randomID(16),
        entiteid: attacker.id,
        victimeid: defender.id,
        compteur: 0,
        entite: { actorid: attacker.id },
        victime: { actorid: defender.id }
      }
    },
      {
        temporary: true
      })
  }

}