feat: système d'expérience et transferts de dés d'expérience

- phase d'expérience (récompenses collectives et individuelles, objectifs, traumatisme)
- jets d'apprentissage (compétences, spécialités, caractéristiques, réserves, évolution)
- bonus de réserve acquis par apprentissage intégré au max dérivé
- transferts de dés individuels <-> groupe dans le dialogue de jet
- onglet expérience sur la fiche personnage
- guide utilisateur combat (docs/user/COMBAT.md)

module/applications/sheets/character-sheet.mjs

@@ -7,18 +7,21 @@ export default class VermineCharacterSheetV2 extends VermineBaseActorSheet {
     position: { width: 860, height: 720 },
     window: { contentClasses: ["character-content"] },
     actions: {
-      addSpecialty: VermineCharacterSheetV2.#onAddSpecialty
+      addSpecialty: VermineCharacterSheetV2.#onAddSpecialty,
+      openExperiencePhase: VermineCharacterSheetV2.#onOpenExperiencePhase,
+      openLearning: VermineCharacterSheetV2.#onOpenLearning
     }
   }
 
   static PARTS = {
-    main: { template: "systems/vermine2047/templates/actor/appv2/character-main.hbs" },
+    main: { template: "systems/vermine2047/templates/actor/appv2/character-main.hbs", scrollable: [""] },
     tabs: { template: "templates/generic/tab-navigation.hbs" },
-    abilities: { template: "systems/vermine2047/templates/actor/appv2/character-abilities.hbs" },
-    totem: { template: "systems/vermine2047/templates/actor/appv2/character-totem.hbs" },
-    equipment: { template: "systems/vermine2047/templates/actor/appv2/character-equipment.hbs" },
-    stories: { template: "systems/vermine2047/templates/actor/appv2/character-stories.hbs" },
-    combat: { template: "systems/vermine2047/templates/actor/appv2/character-combat.hbs" }
+    abilities: { template: "systems/vermine2047/templates/actor/appv2/character-abilities.hbs", scrollable: [""] },
+    totem: { template: "systems/vermine2047/templates/actor/appv2/character-totem.hbs", scrollable: [""] },
+    equipment: { template: "systems/vermine2047/templates/actor/appv2/character-equipment.hbs", scrollable: [""] },
+    stories: { template: "systems/vermine2047/templates/actor/appv2/character-stories.hbs", scrollable: [""] },
+    combat: { template: "systems/vermine2047/templates/actor/appv2/character-combat.hbs", scrollable: [""] },
+    experience: { template: "systems/vermine2047/templates/actor/appv2/character-experience.hbs", scrollable: [""] }
   }
 
   tabGroups = { sheet: "abilities" }
@@ -29,7 +32,8 @@ export default class VermineCharacterSheetV2 extends VermineBaseActorSheet {
       totem: { id: "totem", group: "sheet", icon: "fas fa-star", label: "VERMINE.tabs.totem" },
       equipment: { id: "equipment", group: "sheet", icon: "fas fa-hammer", label: "VERMINE.tabs.equipment" },
       stories: { id: "stories", group: "sheet", icon: "fas fa-book-open-reader", label: "VERMINE.tabs.stories" },
-      combat: { id: "combat", group: "sheet", icon: "fas fa-medal", label: "VERMINE.tabs.combat" }
+      combat: { id: "combat", group: "sheet", icon: "fas fa-medal", label: "VERMINE.tabs.combat" },
+      experience: { id: "experience", group: "sheet", icon: "fas fa-graduation-cap", label: "VERMINE.tabs.experience" }
     }
     for (const v of Object.values(tabs)) {
       v.active = this.tabGroups[v.group] === v.id
@@ -74,9 +78,21 @@ export default class VermineCharacterSheetV2 extends VermineBaseActorSheet {
         break
       case "combat":
         context.tab = context.tabs.combat
+        context.equippedWeapons = doc.itemTypes.weapon.filter(i => i.system.equipped)
+        context.equippedDefenses = doc.itemTypes.defense.filter(i => i.system.equipped)
         const { prepareActiveEffectCategories } = await import("../../system/effects.mjs")
         context.effects = prepareActiveEffectCategories(doc.effects)
         break
+      case "experience":
+        context.tab = context.tabs.experience
+        context.specialtyCount = doc.itemTypes.specialty.length
+        const ex = doc.system.experience
+        context.experience = ex
+        context.collectiveTotal = (ex.collective.danger + ex.collective.discoveries + ex.collective.duration)
+        context.individualTotal = (ex.individual.implication + ex.individual.influence + ex.individual.interpretation)
+        context.currentPhase = ex.phase
+        context.learnedCurrent = ex.learned.phase === ex.phase
+        break
     }
     return context
   }
@@ -96,4 +112,16 @@ export default class VermineCharacterSheetV2 extends VermineBaseActorSheet {
     if (skillKey) itemData.system = { skill: skillKey }
     await this.document.createEmbeddedDocuments("Item", [itemData])
   }
+
+  static async #onOpenExperiencePhase(event, target) {
+    const { default: ExperiencePhaseDialog } = await import("../../system/dialogs/experiencePhaseDialog.mjs")
+    const dialog = await ExperiencePhaseDialog.create()
+    if (dialog) dialog.render(true)
+  }
+
+  static async #onOpenLearning(event, target) {
+    const { default: LearningDialog } = await import("../../system/dialogs/learningDialog.mjs")
+    const dialog = await LearningDialog.create({ actorId: this.document.id })
+    if (dialog) dialog.render(true)
+  }
 }

module/models/character.mjs

@@ -72,8 +72,40 @@ export default class VermineCharacterData extends foundry.abstract.TypeDataModel
       attributes: new fields.SchemaField({
         xp: attributeSchema(0, 0, 10),
         reputation: attributeSchema(0, 0, 10),
-        self_control: attributeSchema(0, 0, 5),
-        effort: attributeSchema(0, 0, 5)
+        self_control: attributeSchema(0, 0, 10),
+        effort: attributeSchema(0, 0, 10)
+      }),
+
+      // Expérience (dés, récompenses, évolution, apprentissage)
+      experience: new fields.SchemaField({
+        dice: new fields.NumberField({ required: true, nullable: false, integer: true, initial: 0, min: 0 }),
+        phase: new fields.NumberField({ required: true, nullable: false, integer: true, initial: 0, min: 0 }),
+        collective: new fields.SchemaField({
+          danger: new fields.NumberField({ required: true, nullable: false, integer: true, initial: 0, min: 0, max: 3 }),
+          discoveries: new fields.NumberField({ required: true, nullable: false, integer: true, initial: 0, min: 0, max: 3 }),
+          duration: new fields.NumberField({ required: true, nullable: false, integer: true, initial: 0, min: 0, max: 3 })
+        }),
+        individual: new fields.SchemaField({
+          implication: new fields.NumberField({ required: true, nullable: false, integer: true, initial: 0, min: 0, max: 3 }),
+          influence: new fields.NumberField({ required: true, nullable: false, integer: true, initial: 0, min: 0, max: 3 }),
+          interpretation: new fields.NumberField({ required: true, nullable: false, integer: true, initial: 0, min: 0, max: 3 })
+        }),
+        evolution: new fields.NumberField({ required: true, nullable: false, integer: true, initial: 0, min: 0 }),
+        traumaReward: new fields.BooleanField({ required: true, initial: false }),
+        // Bonus de Réserve acquis par apprentissage (s'ajoute au max dérivé)
+        reserveBonus: new fields.SchemaField({
+          self_control: new fields.NumberField({ required: true, nullable: false, integer: true, initial: 0, min: 0 }),
+          effort: new fields.NumberField({ required: true, nullable: false, integer: true, initial: 0, min: 0 })
+        }),
+        // Limites d'apprentissage par phase
+        learned: new fields.SchemaField({
+          phase: new fields.NumberField({ required: true, nullable: false, integer: true, initial: 0, min: 0 }),
+          skill: new fields.BooleanField({ required: true, initial: false }),
+          specialty: new fields.BooleanField({ required: true, initial: false }),
+          reserve: new fields.BooleanField({ required: true, initial: false }),
+          characteristic: new fields.BooleanField({ required: true, initial: false }),
+          evolution: new fields.BooleanField({ required: true, initial: false })
+        })
       }),
 
       // Rencontres
@@ -127,7 +159,8 @@ export default class VermineCharacterData extends foundry.abstract.TypeDataModel
     const sum = abilities
       .filter(a => a.category === "mental" || a.category === "social")
       .reduce((acc, a) => acc + a.value, 0)
-    this.attributes.self_control.max = sum + modFromAge
+    const bonus = this.experience?.reserveBonus?.self_control || 0
+    this.attributes.self_control.max = Math.min(10, sum + modFromAge + bonus)
   }
 
   /**
@@ -140,7 +173,8 @@ export default class VermineCharacterData extends foundry.abstract.TypeDataModel
     const sum = abilities
       .filter(a => a.category === "physical" || a.category === "manual")
       .reduce((acc, a) => acc + a.value, 0)
-    this.attributes.effort.max = sum + modFromAge
+    const bonus = this.experience?.reserveBonus?.effort || 0
+    this.attributes.effort.max = Math.min(10, sum + modFromAge + bonus)
   }
 
   /**

module/models/group.mjs

@@ -75,6 +75,11 @@ export default class VermineGroupData extends foundry.abstract.TypeDataModel {
       // Membres (IDs d'acteurs)
       members: new fields.ArrayField(new fields.StringField({ required: true, nullable: false, initial: "" })),
 
+      // Dés d'Expérience collectifs (réserve de Groupe)
+      experience: new fields.SchemaField({
+        dice: new fields.NumberField({ required: true, nullable: false, integer: true, initial: 0, min: 0 })
+      }),
+
       // Rencontres
       encounters: new fields.ArrayField(new fields.StringField({ required: true, nullable: false, initial: "" }))
     }

module/system/dialogs/experiencePhaseDialog.mjs

@@ -0,0 +1,150 @@
+const { HandlebarsApplicationMixin } = foundry.applications.api;
+
+/**
+ * Dialogue du meneur pour ouvrir une phase d'Expérience.
+ * Permet d'attribuer les Dés d'Expérience collectifs (Danger, Découvertes,
+ * Durée) au Groupe et aux personnages, ainsi que les Dés individuels
+ * (Implication, Influence, Interprétation), les récompenses d'Objectifs et
+ * la récompense de Traumatisme choisi.
+ */
+export default class ExperiencePhaseDialog extends HandlebarsApplicationMixin(foundry.applications.api.ApplicationV2) {
+
+  static DEFAULT_OPTIONS = {
+    classes: ["vermine-roll"],
+    tag: "form",
+    window: {
+      icon: "fas fa-star",
+      resizable: true
+    },
+    position: {
+      width: 620,
+      height: 700
+    },
+    actions: {
+      apply: ExperiencePhaseDialog.#onApply,
+      cancel: ExperiencePhaseDialog.#onCancel
+    }
+  };
+
+  static PARTS = {
+    main: { template: "systems/vermine2047/templates/dialogs/experience-phase-dialog.hbs", scrollable: [""] }
+  };
+
+  static async create() {
+    return new ExperiencePhaseDialog();
+  }
+
+  get title() {
+    return game.i18n.localize("VERMINE.experience_phase");
+  }
+
+  async _prepareContext() {
+    const characters = game.actors.filter(a => a.type === "character");
+    const groups = game.actors.filter(a => a.type === "group");
+    return {
+      characters: characters.map(a => ({
+        id: a.id,
+        name: a.name,
+        dice: a.system?.experience?.dice || 0
+      })),
+      groups: groups.map(a => ({
+        id: a.id,
+        name: a.name,
+        dice: a.system?.experience?.dice || 0
+      })),
+      rewards: [
+        { value: 0, label: game.i18n.localize("VERMINE.reward_anecdotic") },
+        { value: 1, label: game.i18n.localize("VERMINE.reward_minor") },
+        { value: 2, label: game.i18n.localize("VERMINE.reward_major") },
+        { value: 3, label: game.i18n.localize("VERMINE.reward_exceptionnal") }
+      ]
+    };
+  }
+
+  async _onRender(context, options) {
+    this.element.querySelectorAll("[data-roll]").forEach(inp => inp.addEventListener("change", () => this.#updateUI()));
+    this.#updateUI();
+  }
+
+  #updateUI() {
+    const danger = parseInt(this.element.querySelector("#collective-danger")?.value, 10) || 0;
+    const discoveries = parseInt(this.element.querySelector("#collective-discoveries")?.value, 10) || 0;
+    const duration = parseInt(this.element.querySelector("#collective-duration")?.value, 10) || 0;
+    const el = this.element.querySelector("#collective-total");
+    if (el) el.textContent = `${danger + discoveries + duration}D`;
+  }
+
+  static async #onCancel(event, target) {
+    this.close();
+  }
+
+  static async #onApply(event, target) {
+    const collective = (parseInt(this.element.querySelector("#collective-danger")?.value, 10) || 0)
+      + (parseInt(this.element.querySelector("#collective-discoveries")?.value, 10) || 0)
+      + (parseInt(this.element.querySelector("#collective-duration")?.value, 10) || 0);
+
+    const groupId = this.element.querySelector("#group-select")?.value || null;
+    if (groupId) {
+      const group = game.actors.get(groupId);
+      if (group && collective > 0) {
+        const current = group.system?.experience?.dice || 0;
+        await group.update({ "system.experience.dice": current + collective });
+      }
+    }
+
+    const results = [];
+    for (const row of this.element.querySelectorAll("[data-character-id]")) {
+      const id = row.dataset.characterId;
+      const actor = game.actors.get(id);
+      if (!actor) continue;
+      const implication = parseInt(row.querySelector(`[name="implication-${id}"]`)?.value, 10) || 0;
+      const influence = parseInt(row.querySelector(`[name="influence-${id}"]`)?.value, 10) || 0;
+      const interpretation = parseInt(row.querySelector(`[name="interpretation-${id}"]`)?.value, 10) || 0;
+      const objectiveMinor = row.querySelector(`[name="objective-minor-${id}"]`)?.checked ? 3 : 0;
+      const objectiveMajor = row.querySelector(`[name="objective-major-${id}"]`)?.checked ? 5 : 0;
+      const trauma = row.querySelector(`[name="trauma-${id}"]`)?.checked ? 5 : 0;
+
+      const individual = implication + influence + interpretation;
+      const bonus = objectiveMinor + objectiveMajor + trauma;
+      const gained = collective + individual + bonus;
+
+      const ex = actor.system?.experience;
+      const nextPhase = (ex?.phase || 0) + 1;
+      const update = {
+        "system.experience.phase": nextPhase,
+        "system.experience.dice": (ex?.dice || 0) + gained,
+        "system.experience.collective.danger": parseInt(this.element.querySelector("#collective-danger")?.value, 10) || 0,
+        "system.experience.collective.discoveries": parseInt(this.element.querySelector("#collective-discoveries")?.value, 10) || 0,
+        "system.experience.collective.duration": parseInt(this.element.querySelector("#collective-duration")?.value, 10) || 0,
+        "system.experience.individual.implication": implication,
+        "system.experience.individual.influence": influence,
+        "system.experience.individual.interpretation": interpretation,
+        "system.experience.traumaReward": trauma > 0,
+        "system.experience.learned.phase": nextPhase,
+        "system.experience.learned.skill": false,
+        "system.experience.learned.specialty": false,
+        "system.experience.learned.reserve": false,
+        "system.experience.learned.characteristic": false,
+        "system.experience.learned.evolution": false
+      };
+      await actor.update(update);
+      results.push({ name: actor.name, gained });
+    }
+
+    const lines = [`${game.i18n.localize("VERMINE.experience_phase")} +1`];
+    if (groupId) {
+      const group = game.actors.get(groupId);
+      lines.push(`${group?.name ?? ""} (${game.i18n.localize("VERMINE.collective")}): +${collective}D`);
+    }
+    for (const r of results) {
+      lines.push(`${r.name}: +${r.gained}D`);
+    }
+    await ChatMessage.create({
+      user: game.user?._id,
+      speaker: ChatMessage.getSpeaker(),
+      content: `<div class="vermine-roll-message"><h3>${game.i18n.localize("VERMINE.experience_rewards")}</h3><div class="roll-context flexrow flex-wrap">${lines.map(l => `<span class="context-item">${l}</span>`).join("")}</div></div>`
+    });
+
+    this.close();
+  }
+}

module/system/dialogs/learningDialog.mjs

@@ -0,0 +1,327 @@
+import { VermineUtils } from "../roll.mjs";
+import { VermineExperience } from "../experience.mjs";
+
+const { HandlebarsApplicationMixin } = foundry.applications.api;
+
+/**
+ * Dialogue d'apprentissage (phase d'Expérience).
+ * Permet de dépenser des Dés d'Expérience pour tenter de développer une
+ * Compétence, une Spécialité, une Caractéristique, une Réserve ou un
+ * Dé d'Évolution. La progression est appliquée automatiquement en cas de
+ * réussite.
+ */
+export default class LearningDialog extends HandlebarsApplicationMixin(foundry.applications.api.ApplicationV2) {
+
+  #actor;
+
+  static DEFAULT_OPTIONS = {
+    classes: ["vermine-roll"],
+    tag: "form",
+    window: {
+      icon: "fas fa-graduation-cap",
+      resizable: false
+    },
+    position: {
+      width: 560,
+      height: 640
+    },
+    actions: {
+      roll: LearningDialog.#onRoll,
+      cancel: LearningDialog.#onCancel
+    }
+  };
+
+  static PARTS = {
+    main: { template: "systems/vermine2047/templates/dialogs/learning-dialog.hbs", scrollable: [""] }
+  };
+
+  static async create({ actorId }) {
+    const actor = await game.actors.get(actorId);
+    if (!actor) {
+      ui.notifications.warn(game.i18n.localize("VERMINE.error_no_actor_selected"));
+      return null;
+    }
+    return new LearningDialog({ actor });
+  }
+
+  constructor(options = {}) {
+    super(options);
+    this.#actor = options.actor;
+  }
+
+  get title() {
+    return game.i18n.localize("VERMINE.open_learning");
+  }
+
+  async _prepareContext() {
+    const actor = this.#actor;
+    const skills = Object.entries(CONFIG.VERMINE.skills).map(([key, cfg]) => ({
+      key,
+      name: game.i18n.localize("SKILLS." + key + ".name"),
+      category: cfg.category,
+      value: actor.system?.skills?.[key]?.value || 0,
+      target: Math.min(5, (actor.system?.skills?.[key]?.value || 0) + 1),
+      rarity: actor.system?.skills?.[key]?.rarity || 0,
+      isDomain: VermineExperience.isPreferredDomain(actor, key)
+    }));
+    return {
+      actor,
+      system: actor.system,
+      config: CONFIG.VERMINE,
+      dice: actor.system?.experience?.dice || 0,
+      ageType: actor.system?.identity?.ageType || 2,
+      abilities: Object.entries(CONFIG.VERMINE.abilities).map(([key, label]) => ({
+        key,
+        label: game.i18n.localize(label),
+        value: actor.system?.abilities?.[key]?.value || 0
+      })),
+      reserves: [
+        { key: "self_control", label: game.i18n.localize("VERMINE.self_control"), value: actor.system?.attributes?.self_control?.value || 0, max: actor.system?.attributes?.self_control?.max || 0 },
+        { key: "effort", label: game.i18n.localize("VERMINE.effort"), value: actor.system?.attributes?.effort?.value || 0, max: actor.system?.attributes?.effort?.max || 0 }
+      ],
+      specialties: actor.itemTypes?.specialty || [],
+      skills,
+      specialtyCount: (actor.itemTypes?.specialty || []).length
+    };
+  }
+
+  async _onRender(context, options) {
+    this.element.dataset.actorId = this.#actor.id;
+    for (const inp of this.element.querySelectorAll("[data-roll]")) {
+      inp.addEventListener("change", () => this.#updateUI());
+    }
+    this.element.querySelector("#learning-dice")?.addEventListener("input", () => this.#updateUI());
+    this.#updateUI();
+  }
+
+  get #el() { return this.element; }
+
+  #getType() {
+    return this.#el.querySelector('input[name="learning-type"]:checked')?.value ?? "skill";
+  }
+
+  #getTargetKey() {
+    const type = this.#getType();
+    if (type === "characteristic") return this.#el.querySelector("#learning-ability")?.value ?? "";
+    if (type === "reserve") return this.#el.querySelector("#learning-reserve")?.value ?? "";
+    return this.#el.querySelector("#learning-target")?.value ?? "";
+  }
+
+  #getDiceSpent() {
+    return Math.max(1, parseInt(this.#el.querySelector("#learning-dice")?.value, 10) || 1);
+  }
+
+  #getSpecialtyName() {
+    return this.#el.querySelector("#specialty-name")?.value?.trim() || game.i18n.localize("ITEMS.new_specialty");
+  }
+
+  #compute() {
+    const actor = this.#actor;
+    const type = this.#getType();
+    const key = this.#getTargetKey();
+    const difficulty = 7;
+    let handicap = 0;
+    let poolModifier = 0;
+    let label = "";
+    let targetLevel = null;
+
+    if (type === "skill") {
+      const current = key ? actor.system?.skills?.[key]?.value || 0 : 0;
+      targetLevel = Math.min(5, current + 1);
+      const rarity = key ? actor.system?.skills?.[key]?.rarity || 0 : 0;
+      label = game.i18n.localize(VermineExperience.skillLevelLabelKey(targetLevel));
+      const diff = VermineExperience.skillLearningDifficulty(targetLevel);
+      const domain = key ? VermineExperience.isPreferredDomain(actor, key) : false;
+      return {
+        type,
+        key,
+        targetLevel,
+        difficulty: domain ? Math.max(3, diff - 2) : diff,
+        handicap: VermineExperience.skillLearningHandicap(targetLevel, rarity),
+        poolModifier: 0,
+        label,
+        targetLabel: key ? game.i18n.localize("SKILLS." + key + ".name") : ""
+      };
+    }
+    if (type === "specialty") {
+      const current = key ? actor.system?.skills?.[key]?.value || 0 : 0;
+      const domain = key ? VermineExperience.isPreferredDomain(actor, key) : false;
+      label = game.i18n.localize("VERMINE.specialty");
+      return {
+        type,
+        key,
+        targetLevel: current,
+        difficulty: VermineExperience.specialtyLearningDifficulty(current, domain),
+        handicap: VermineExperience.specialtyLearningHandicap(actor.itemTypes?.specialty?.length || 0),
+        poolModifier: 0,
+        label,
+        targetLabel: key ? game.i18n.localize("SKILLS." + key + ".name") : ""
+      };
+    }
+    if (type === "characteristic") {
+      const current = key ? actor.system?.abilities?.[key]?.value || 0 : 0;
+      label = game.i18n.localize("VERMINE.characteristic");
+      return {
+        type,
+        key,
+        targetLevel: current,
+        difficulty: VermineExperience.characteristicLearningDifficulty(),
+        handicap: current,
+        poolModifier: 0,
+        label,
+        targetLabel: key ? game.i18n.localize(CONFIG.VERMINE.abilities[key]) : ""
+      };
+    }
+    if (type === "reserve") {
+      const current = key ? actor.system?.attributes?.[key]?.value || 0 : 0;
+      label = game.i18n.localize("VERMINE.reserve");
+      return {
+        type,
+        key,
+        targetLevel: current,
+        difficulty: VermineExperience.reserveLearningDifficulty(current),
+        handicap: VermineExperience.ageHandicap(actor.system?.identity?.ageType || 2),
+        poolModifier: 0,
+        label,
+        targetLabel: key ? game.i18n.localize(key === "self_control" ? "VERMINE.self_control" : "VERMINE.effort") : ""
+      };
+    }
+    // evolution
+    const human = actor.system?.adaptation?.totems?.human?.value || 0;
+    const adapted = actor.system?.adaptation?.totems?.adapted?.value || 0;
+    label = game.i18n.localize("VERMINE.evolution_dice");
+    return {
+      type,
+      key,
+      targetLevel: actor.system?.experience?.evolution || 0,
+      difficulty: VermineExperience.evolutionDifficulty(actor.system?.identity?.ageType || 2),
+      handicap: actor.system?.experience?.evolution || 0,
+      poolModifier: VermineExperience.evolutionTotemModifier(human, adapted),
+      label,
+      targetLabel: ""
+    };
+  }
+
+  #updateUI() {
+    const type = this.#getType();
+    const show = (id, visible) => {
+      const el = this.#el.querySelector(id);
+      if (el) el.style.display = visible ? "" : "none";
+    };
+    show("#learning-skill-section", type === "skill" || type === "specialty");
+    show("#learning-specialty-section", type === "specialty");
+    show("#learning-ability-section", type === "characteristic");
+    show("#learning-reserve-section", type === "reserve");
+    show("#learning-evolution-section", type === "evolution");
+
+    // Pour une Spécialité, seule une compétence au moins Confirmée (≥2) est valable.
+    const skillSelect = this.#el.querySelector("#learning-target");
+    if (skillSelect) {
+      for (const opt of skillSelect.options) {
+        const value = parseInt(opt.dataset.value, 10) || 0;
+        opt.hidden = (type === "specialty") ? value < 2 : false;
+      }
+    }
+
+    const c = this.#compute();
+    const set = (sel, txt) => { const el = this.#el.querySelector(sel); if (el) el.textContent = txt; };
+    set("#diff-value", c.difficulty);
+    set("#handicap-value", c.handicap);
+    set("#required-value", 1 + c.handicap);
+    const pool = Math.max(0, this.#getDiceSpent() + c.poolModifier);
+    set("#pool-value", `${pool}D${c.poolModifier ? ` (${c.poolModifier >= 0 ? "+" : ""}${c.poolModifier}D)` : ""}`);
+    const poolInput = this.#el.querySelector("#learning-dice");
+    if (poolInput) poolInput.max = this.#actor.system?.experience?.dice || 0;
+  }
+
+  static async #onCancel(event, target) {
+    this.close();
+  }
+
+  static async #onRoll(event, target) {
+    const actor = this.#actor;
+    const ex = actor.system?.experience;
+    const dice = ex?.dice || 0;
+    const spent = Math.min(this.#getDiceSpent(), dice);
+    if (spent < 1) {
+      ui.notifications.warn(game.i18n.localize("VERMINE.error_no_experience_dice"));
+      return;
+    }
+
+    const c = this.#compute();
+
+    // Limite : une seule compétence, spécialité, réserve, caractéristique et
+    // un seul Dé d'Évolution par phase.
+    if (ex?.learned?.phase === ex?.phase) {
+      const flagMap = { skill: "skill", specialty: "specialty", reserve: "reserve", characteristic: "characteristic", evolution: "evolution" };
+      if (ex.learned[flagMap[c.type]]) {
+        ui.notifications.warn(game.i18n.localize("VERMINE.error_learning_limit"));
+        return;
+      }
+    }
+    if (c.type === "skill" && c.targetLevel !== null && (actor.system?.skills?.[c.key]?.value || 0) >= 5) {
+      ui.notifications.warn(game.i18n.localize("VERMINE.error_skill_max"));
+      return;
+    }
+    if (c.type === "characteristic" && c.targetLevel !== null && (actor.system?.abilities?.[c.key]?.value || 0) >= 3) {
+      ui.notifications.warn(game.i18n.localize("VERMINE.error_characteristic_max"));
+      return;
+    }
+    if (c.type === "specialty" && c.targetLevel !== null && c.targetLevel < 2) {
+      ui.notifications.warn(game.i18n.localize("VERMINE.error_specialty_requirement"));
+      return;
+    }
+    if (c.type === "reserve" && c.targetLevel !== null && (actor.system?.attributes?.[c.key]?.max || 0) >= 10) {
+      ui.notifications.warn(game.i18n.localize("VERMINE.error_reserve_max"));
+      return;
+    }
+
+    const pool = Math.max(0, spent + c.poolModifier);
+    const rollLabel = `${game.i18n.localize("VERMINE.open_learning")} — ${c.label}${c.targetLabel ? " (" + c.targetLabel + ")" : ""}`;
+
+    const roll = await VermineUtils.roll({
+      actor,
+      NoD: pool,
+      Reroll: 0,
+      difficulty: c.difficulty,
+      handicap: c.handicap,
+      rollLabel,
+      poolBreakdown: { ability: 0, skill: 0, selfControl: 0, specialty: 0, help: 0, tooling: 0, group: 0, total: pool },
+      messageFlags: { "vermine-learning": { type: c.type, key: c.key, spent, success: false } }
+    });
+
+    const required = 1 + c.handicap;
+    const specialtyName = this.#getSpecialtyName();
+    if ((roll._total ?? 0) >= required) {
+      await this.#applySuccess(c, spent, specialtyName);
+    }
+    this.close();
+  }
+
+  async #applySuccess(c, spent, specialtyName) {
+    const actor = this.#actor;
+    const updates = { "system.experience.dice": (actor.system.experience.dice || 0) - spent };
+    if (c.type === "skill") {
+      const current = actor.system.skills[c.key].value || 0;
+      updates["system.skills." + c.key + ".value"] = Math.min(5, current + 1);
+      updates["system.experience.learned.skill"] = true;
+    } else if (c.type === "specialty") {
+      await actor.createEmbeddedDocuments("Item", [{ name: specialtyName, type: "specialty", system: { skill: c.key } }]);
+      updates["system.experience.learned.specialty"] = true;
+    } else if (c.type === "characteristic") {
+      const current = actor.system.abilities[c.key].value || 0;
+      updates["system.abilities." + c.key + ".value"] = Math.min(3, current + 1);
+      updates["system.experience.learned.characteristic"] = true;
+    } else if (c.type === "reserve") {
+      const bonus = actor.system.experience.reserveBonus?.[c.key] || 0;
+      updates["system.experience.reserveBonus." + c.key] = bonus + 1;
+      updates["system.experience.learned.reserve"] = true;
+    } else {
+      updates["system.experience.evolution"] = (actor.system.experience.evolution || 0) + 1;
+      updates["system.experience.learned.evolution"] = true;
+    }
+    updates["system.experience.learned.phase"] = actor.system.experience.phase;
+    await actor.update(updates);
+    ui.notifications.info(game.i18n.localize("VERMINE.learning_success"));
+  }
+}

module/system/dialogs/rollDialog.mjs

@@ -23,7 +23,8 @@ export default class RollDialog extends HandlebarsApplicationMixin(foundry.appli
     },
     actions: {
       roll: RollDialog.#onRoll,
-      cancel: RollDialog.#onCancel
+      cancel: RollDialog.#onCancel,
+      giveToGroup: RollDialog.#onGiveToGroup
     }
   };
 
@@ -32,6 +33,9 @@ export default class RollDialog extends HandlebarsApplicationMixin(foundry.appli
   };
 
   static async create(data = {}) {
+    if (data.actor instanceof Actor) {
+      return new RollDialog({ actor: data.actor, label: data.label, rolltype: data.rolltype, weapon: data.weapon, locks: data.locks, defense: data.defense });
+    }
     const actorId = data.actorId ?? game.user.character?.id ?? canvas.tokens.controlled[0]?.actor?.id;
     if (!actorId || typeof actorId !== "string") {
       ui.notifications.warn(game.i18n.localize("VERMINE.error_no_actor_selected"));
@@ -42,7 +46,7 @@ export default class RollDialog extends HandlebarsApplicationMixin(foundry.appli
       ui.notifications.warn(game.i18n.localize("VERMINE.error_no_actor_selected"));
       return null;
     }
-    return new RollDialog({ actor, label: data.label, rolltype: data.rolltype });
+    return new RollDialog({ actor, label: data.label, rolltype: data.rolltype, weapon: data.weapon, locks: data.locks, defense: data.defense });
   }
 
   constructor(options = {}) {
@@ -50,10 +54,16 @@ export default class RollDialog extends HandlebarsApplicationMixin(foundry.appli
     this.#actor = options.actor;
     this.label = options.label ?? null;
     this.rolltype = options.rolltype ?? null;
+    this.weapon = options.weapon ?? null;
+    this.locks = options.locks ?? null;
+    this.defense = options.defense ?? null;
   }
 
   async _prepareContext() {
     const actor = this.#actor;
+    const isCharacter = actor.type === "character";
+    const group = isCharacter ? RollDialog.#findGroup(actor) : null;
+    const groupPool = group?.system?.experience?.dice || 0;
     return {
       actor,
       system: actor.system,
@@ -66,13 +76,28 @@ export default class RollDialog extends HandlebarsApplicationMixin(foundry.appli
       help: false,
       specialty: false,
       availableSpecialties: actor.items.filter(i => i.type === "specialty"),
-      availableItems: actor.items.filter(i => i.type === "item")
+      availableItems: actor.items.filter(i => i.type === "item"),
+      locks: this.locks,
+      experience: {
+        hasExperience: isCharacter,
+        individual: isCharacter ? actor.system?.experience?.dice || 0 : 0,
+        groupPool,
+        pullOptions: [0, 1, 2].filter(v => v <= Math.min(2, groupPool)),
+        canPull: Boolean(group) && (game.user.isGM || group.isOwner),
+        canGive: isCharacter && (game.user.isGM || actor.isOwner)
+      }
     };
   }
 
   async _onRender(context, options) {
     this.element.dataset.actorId = this.#actor.id;
 
+    // Mode verrouillé (défense en échange de coups) : présélectionne et bloque
+    // caractéristique + difficulté, présélectionne la compétence.
+    if (this.locks) {
+      this.#applyLocks(this.locks);
+    }
+
     for (const inp of this.element.querySelectorAll("[data-roll]")) {
       inp.addEventListener("change", this.#onInputChange.bind(this));
     }
@@ -95,6 +120,7 @@ export default class RollDialog extends HandlebarsApplicationMixin(foundry.appli
     this.element.querySelector("#adapted-totem")?.addEventListener("change", () => this.#updateUI());
 
     this.#displaySpecialties();
+    this.#refreshExperienceUI();
     this.#updateUI();
 
     if (ability?.value !== "0") {
@@ -111,6 +137,16 @@ export default class RollDialog extends HandlebarsApplicationMixin(foundry.appli
   #getDifficulty() { return this.#el.querySelector("#difficulty"); }
   #getHandicap() { return this.#el.querySelector("#handicap"); }
   #getSelfCtrl() { return this.#el.querySelector("#self_control"); }
+  #getExperiencePull() { return parseInt(this.#el.querySelector("#experience-pull")?.value, 10) || 0; }
+
+  /**
+   * Trouve le premier Groupe dont le personnage est membre.
+   * @param {Actor} actor
+   * @returns {Actor|null}
+   */
+  static #findGroup(actor) {
+    return game.actors.filter(a => a.type === "group" && (a.system?.members ?? []).includes(actor.id))[0] ?? null;
+  }
 
   /** Décomposition du pool de dés pour affichage dans le message. */
   getPoolBreakdown() {
@@ -124,11 +160,12 @@ export default class RollDialog extends HandlebarsApplicationMixin(foundry.appli
     const toolsChecked = this.#el.querySelector("input[name='usingTools']:checked");
     const tools = toolsChecked && toolsChecked.value !== "0";
     const group = parseInt(this.#el.querySelector("#group")?.value, 10) || 0;
+    const experience = this.#getExperiencePull();
     const specialty = specChecked ? 1 : 0;
     const help = helped ? 1 : 0;
     const tooling = tools ? 1 : 0;
-    const total = ability + skillPool + selfControl + specialty + help + tooling + group;
-    return { ability, skill: skillPool, selfControl, specialty, help, tooling, group, total };
+    const total = ability + skillPool + selfControl + specialty + help + tooling + group + experience;
+    return { ability, skill: skillPool, selfControl, specialty, help, tooling, group, experience, total };
   }
 
   getDicePool() {
@@ -214,6 +251,40 @@ export default class RollDialog extends HandlebarsApplicationMixin(foundry.appli
 
   // ── UI ───────────────────────────────────────────────────────────────
 
+  #applyLocks(locks) {
+    const ability = this.#getAbility();
+    if (ability && locks.ability) {
+      const opt = [...ability.options].find(o => o.dataset.label === locks.ability);
+      if (opt) {
+        opt.selected = true;
+        ability.disabled = true;
+        const scoreEl = this.#el.querySelector("#abilityScore");
+        if (scoreEl) scoreEl.value = opt.value;
+        const sc = this.#getSelfCtrl();
+        if (sc) sc.max = opt.value;
+      }
+    }
+    const skill = this.#getSkill();
+    if (skill && locks.skill) {
+      const opt = [...skill.options].find(o => o.dataset.label === locks.skill);
+      if (opt) opt.selected = true;
+    }
+    const difficulty = this.#getDifficulty();
+    if (difficulty && locks.difficulty !== undefined && locks.difficulty !== null) {
+      const locked = parseInt(locks.difficulty, 10);
+      let opt = [...difficulty.options].find(o => parseInt(o.value, 10) === locked);
+      if (!opt) {
+        // Difficulté hors des options (ex: 9 + 2) : ajoute une option dédiée.
+        opt = document.createElement("option");
+        opt.value = String(locked);
+        opt.textContent = `${game.i18n.localize("VERMINE.difficulty")} (${locked})`;
+        difficulty.appendChild(opt);
+      }
+      opt.selected = true;
+      difficulty.disabled = true;
+    }
+  }
+
   #displaySpecialties() {
     for (const el of this.#el.querySelectorAll("[data-spec-skill]")) {
       el.style.display = "inline";
@@ -222,7 +293,31 @@ export default class RollDialog extends HandlebarsApplicationMixin(foundry.appli
 
   #calculateBonusCount() {
     const b = this.getPoolBreakdown();
-    return b.specialty + b.help + b.tooling + b.group + b.selfControl;
+    return b.specialty + b.help + b.tooling + b.group + b.selfControl + b.experience;
+  }
+
+  #refreshExperienceUI() {
+    const actor = this.#actor;
+    const group = RollDialog.#findGroup(actor);
+    const individual = actor.system?.experience?.dice || 0;
+    const groupPool = group?.system?.experience?.dice || 0;
+    const indEl = this.#el.querySelector("#exp-individual");
+    if (indEl) indEl.textContent = individual;
+    const grpEl = this.#el.querySelector("#exp-group");
+    if (grpEl) grpEl.textContent = groupPool;
+    const pull = this.#el.querySelector("#experience-pull");
+    if (pull) {
+      const max = Math.min(2, groupPool);
+      const current = Math.min(parseInt(pull.value, 10) || 0, max);
+      pull.innerHTML = "";
+      for (let i = 0; i <= max; i++) {
+        const opt = document.createElement("option");
+        opt.value = String(i);
+        opt.textContent = `${i}D`;
+        if (i === current) opt.selected = true;
+        pull.appendChild(opt);
+      }
+    }
   }
 
   #updateUI() {
@@ -289,6 +384,29 @@ export default class RollDialog extends HandlebarsApplicationMixin(foundry.appli
     this.close();
   }
 
+  static async #onGiveToGroup(event, target) {
+    const actor = this.#actor;
+    if (actor.type !== "character") return;
+    const individual = actor.system?.experience?.dice || 0;
+    if (individual < 1) {
+      ui.notifications.warn(game.i18n.localize("VERMINE.error_no_experience_dice"));
+      return;
+    }
+    if (!game.user.isGM && !actor.isOwner) {
+      ui.notifications.warn(game.i18n.localize("VERMINE.error_no_permission"));
+      return;
+    }
+    const group = RollDialog.#findGroup(actor);
+    if (!group) {
+      ui.notifications.warn(game.i18n.localize("VERMINE.error_no_group"));
+      return;
+    }
+    const groupPool = group.system?.experience?.dice || 0;
+    await actor.update({ "system.experience.dice": individual - 1 });
+    await group.update({ "system.experience.dice": groupPool + 1 });
+    this.#refreshExperienceUI();
+  }
+
   static async #onRoll(event, target) {
     const selfCtrl = this.getSelfControl();
     if (selfCtrl > 0) {
@@ -310,6 +428,26 @@ export default class RollDialog extends HandlebarsApplicationMixin(foundry.appli
       await this.#actor.update({ "system.attributes.self_control.value": newVal });
     }
 
+    // Transfert d'Expérience : puiser dans la Réserve de Groupe (1-2D).
+    const pulled = this.#getExperiencePull();
+    if (pulled > 0) {
+      const group = RollDialog.#findGroup(this.#actor);
+      if (!group) {
+        ui.notifications.warn(game.i18n.localize("VERMINE.error_no_group"));
+        return;
+      }
+      if (!game.user.isGM && !group.isOwner) {
+        ui.notifications.warn(game.i18n.localize("VERMINE.error_no_permission"));
+        return;
+      }
+      const groupPool = group.system?.experience?.dice || 0;
+      if (groupPool < pulled) {
+        ui.notifications.warn(game.i18n.localize("VERMINE.error_no_group_dice"));
+        return;
+      }
+      await group.update({ "system.experience.dice": groupPool - pulled });
+    }
+
     await VermineUtils.roll({
       actor: this.#actor,
       NoD: this.getDicePool(),
@@ -325,7 +463,10 @@ export default class RollDialog extends HandlebarsApplicationMixin(foundry.appli
       skillLevel: this.getSkillLevel(),
       hasSpecialty: this.hasSpecialtySelected(),
       poolBreakdown: this.getPoolBreakdown(),
-      specialtyName: this.getSpecialtyName()
+      specialtyName: this.getSpecialtyName(),
+      weapon: this.weapon?.toObject() ?? null,
+      targets: [...game.user.targets].map(t => t.name),
+      messageFlags: this.defense ? { "vermine-defense": this.defense } : null
     });
 
     this.close();

module/system/experience.mjs

@@ -0,0 +1,146 @@
+/**
+ * Règles d'apprentissage (phase d'Expérience).
+ * Helpers purs de difficultés, handicaps et calculs de jets d'Expérience.
+ */
+
+export class VermineExperience {
+
+  /**
+   * Difficulté d'un jet d'apprentissage de Compétence selon le niveau visé.
+   * @param {number} targetLevel niveau visé (1-5)
+   * @returns {number}
+   */
+  static skillLearningDifficulty(targetLevel) {
+    switch (parseInt(targetLevel, 10)) {
+      case 1: return 5  // Débutant
+      case 2: return 7  // Confirmé
+      case 3: return 9  // Expert
+      case 4: return 10 // Maître
+      case 5: return 10 // Légende
+      default: return 7
+    }
+  }
+
+  /**
+   * Handicap d'un jet d'apprentissage de Compétence.
+   * Rareté (1-3) + handicap (I) supplémentaire pour le niveau Légende.
+   * @param {number} targetLevel niveau visé (1-5)
+   * @param {number} rarity rareté de la compétence (0-3)
+   * @returns {number}
+   */
+  static skillLearningHandicap(targetLevel, rarity) {
+    let handicap = parseInt(rarity, 10) || 0
+    if (parseInt(targetLevel, 10) === 5) handicap += 1 // Légende : (I)
+    return handicap
+  }
+
+  /**
+   * Difficulté d'un jet d'apprentissage de Spécialité selon le niveau actuel
+   * de la compétence associée. Domaine de prédilection : -2.
+   * @param {number} skillLevel niveau actuel de la compétence (2-5)
+   * @param {boolean} isDomain la compétence est dans le domaine de prédilection
+   * @returns {number}
+   */
+  static specialtyLearningDifficulty(skillLevel, isDomain) {
+    let difficulty
+    switch (parseInt(skillLevel, 10)) {
+      case 2: difficulty = 9  // Confirmé
+        break
+      case 3: difficulty = 7  // Expert
+        break
+      case 4: difficulty = 5  // Maître
+        break
+      case 5: difficulty = 5  // Légende (relance automatique)
+        break
+      default: difficulty = 9
+    }
+    return isDomain ? difficulty - 2 : difficulty
+  }
+
+  /**
+   * Handicap d'un jet d'apprentissage de Spécialité : nombre de spécialités
+   * déjà possédées (requiert au moins Confirmé dans la compétence associée).
+   * @param {number} specialtyCount
+   * @returns {number}
+   */
+  static specialtyLearningHandicap(specialtyCount) {
+    return Math.max(0, parseInt(specialtyCount, 10) || 0)
+  }
+
+  /**
+   * Difficulté d'un jet d'apprentissage de Caractéristique.
+   * @returns {number}
+   */
+  static characteristicLearningDifficulty() {
+    return 9
+  }
+
+  /**
+   * Difficulté d'un jet d'apprentissage de Réserve : valeur actuelle.
+   * @param {number} currentValue
+   * @returns {number}
+   */
+  static reserveLearningDifficulty(currentValue) {
+    return Math.max(0, parseInt(currentValue, 10) || 0)
+  }
+
+  /**
+   * Handicap d'âge pour l'apprentissage des Réserves et autres jets liés à l'âge.
+   * @param {number} ageType 1=Jeune, 2=Adulte, 3=Ancien
+   * @returns {number}
+   */
+  static ageHandicap(ageType) {
+    switch (parseInt(ageType, 10)) {
+      case 1: return 1 // Jeune (I)
+      case 3: return 3 // Ancien (III)
+      default: return 2 // Adulte (II)
+    }
+  }
+
+  /**
+   * Difficulté d'un jet d'acquisition d'un Dé d'Évolution selon l'âge.
+   * @param {number} ageType 1=Jeune, 2=Adulte, 3=Ancien
+   * @returns {number}
+   */
+  static evolutionDifficulty(ageType) {
+    switch (parseInt(ageType, 10)) {
+      case 1: return 5
+      case 3: return 9
+      default: return 7
+    }
+  }
+
+  /**
+   * Bonus/Malus de Totem sur le jet de Dé d'Évolution.
+   * Plus de Dés Adaptés que Humains : +1D. Inversement : -1D.
+   * @param {number} human human totem dice
+   * @param {number} adapted adapted totem dice
+   * @returns {number}
+   */
+  static evolutionTotemModifier(human, adapted) {
+    if (adapted > human) return 1
+    if (human > adapted) return -1
+    return 0
+  }
+
+  /**
+   * Clé i18n du libellé du niveau de compétence visé.
+   * @param {number} level
+   * @returns {string}
+   */
+  static skillLevelLabelKey(level) {
+    return CONFIG.VERMINE.SkillLevels?.[level]?.label ?? "SKILL_LEVELS.incompetent"
+  }
+
+  /**
+   * Détermine si une compétence appartient au domaine de prédilection.
+   * @param {Actor} actor
+   * @param {string} skillKey
+   * @returns {boolean}
+   */
+  static isPreferredDomain(actor, skillKey) {
+    const category = actor.system?.skills?.[skillKey]?.category
+    const preferred = actor.system?.skill_categories?.preferred
+    return Boolean(category && preferred && category === preferred)
+  }
+}