Files
foundryvtt-reve-de-dragon/module/combat/distance.mjs

122 lines
4.7 KiB
JavaScript

import { ITEM_TYPES } from "../constants.js"
import { Grammar } from "../grammar.js"
import { ATTAQUE_TYPE } from "../item/arme.js"
import { Misc } from "../misc.js"
export class Distance {
static typeAttaqueDistance(attaque) {
function mapTypeAttaque(value) {
switch (value) {
case ATTAQUE_TYPE.LANCER: case 'lancer': return ATTAQUE_TYPE.LANCER
case ATTAQUE_TYPE.TIR: case 'tir': return ATTAQUE_TYPE.TIR
}
return undefined
}
switch (attaque.comp?.type) {
case ITEM_TYPES.competence: return mapTypeAttaque(attaque.main)
case ITEM_TYPES.competencecreature: return mapTypeAttaque(attaque.arme.system.categorie)
}
return undefined
}
static ajustements(token, defenderToken, attaque) {
const typeAttaque = Distance.typeAttaqueDistance(attaque)
if (typeAttaque) {
const distance = Distance.distance(token, defenderToken)
const isVisible = Distance.isVisible(token, defenderToken)
const portee = Distance.ajustementPortee(distance, attaque.arme)
const taille = Distance.ajustementTaille(defenderToken?.actor)
const activite = Distance.ajustementMouvement(defenderToken)
const total = Distance.diff(portee, taille, activite)
const diffDefense = Distance.ajustementDefense(attaque)
return { typeAttaque, isVisible, distance, portee, taille, activite, total, diffDefense }
}
return undefined
}
static distance(token, defenderToken) {
if (Distance.$isToken(token) && Distance.$isToken(defenderToken)) {
const source = token.getCenterPoint()
const target = defenderToken.getCenterPoint()
const measure = canvas.grid.measurePath([ source, target])
return measure.distance
}
return -1 /* distance indéterminée */
}
static isVisible(token, defenderToken) {
// TODO: regarder les StatusEffect aveuglé?
if (Distance.$isToken(token) && Distance.$isToken(defenderToken)) {
return canvas.visibility.testVisibility(defenderToken.getCenterPoint(), { object: token })
}
return true
}
static ajustementPortee(distance, arme) {
if (distance < 0 || !arme) {
return { msg: "non déterminée", diff: 0 };
}
if (arme.system.portee_courte && distance <= arme.system.portee_courte) return { msg: "courte", diff: 0 };
if (arme.system.portee_moyenne && distance <= arme.system.portee_moyenne) return { msg: "moyenne", diff: -3 };
if (arme.system.portee_extreme && distance <= arme.system.portee_extreme) return { msg: "extrême", diff: -5 };
return { msg: "inatteignable", diff: -10 };
}
static ajustementTaille(actor) {
if (!actor) {
return { msg: "non déterminée", diff: 0 };
}
if (actor.isVehicule()) return { msg: "véhicule", diff: 0 }
const taille = actor.getCaracByName('TAILLE')?.value ?? 1;
if (taille <= 1) return { msg: "souris", diff: -8 };
if (taille <= 3) return { msg: "chat", diff: -4 };
if (taille <= 5) return { msg: "chien", diff: -2 };
if (taille <= 15) return { msg: "humanoïde", diff: 0 };
if (taille <= 20) return { msg: "ogre", diff: 2 };
return { msg: "gigantesque", diff: 4 };
}
static ajustementMouvement(defenderToken) {
if (Distance.$isToken(defenderToken)) {
if (defenderToken.actor?.getSurprise(true) != '') return { msg: "immobile (surprise)", diff: 0 };
if (defenderToken.inCombat) return { msg: "en combat", diff: -4 };
}
return { msg: "à déterminer", diff: -3 };
}
static diff(...ajustements) {
return ajustements.map(it => it.diff).filter(d => !Number.isNaN(d)).reduce(Misc.sum(), 0)
}
static ajustementDefense(attaque) {
switch (Grammar.toLowerCaseNoAccentNoSpace(attaque.comp.name)) {
case 'arbalete': return { label: 'Parade carreau', value: -5 }
case 'arc': return { label: 'Parade flêche', value: -5 }
case 'fronde': return { label: 'Parade bille de fronde', value: -4 }
case 'daguedejet': return { label: 'Parade/Esquive dague lancée', value: -2 }
case 'javelot': return { label: 'Parade/Esquive javelot lancé', value: -2 }
case 'fouet': return { label: 'Parade/Esquive fouet', value: 0 }
}
return { label: 'Parade/esquive projectile', value: 0 }
}
static ajustementBouclier(bouclier) {
if (bouclier?.system.categorie_parade == 'boucliers') {
if (bouclier.system.force < 10) {
return { label: 'Bouclier léger', value: -3 }
}
if (bouclier.system.force < 12) {
return { label: 'Bouclier moyen', value: 0 }
}
return { label: 'Bouclier lourd', value: 3 }
}
/* esquive */
return undefined
}
static $isToken(token) {
return token instanceof Token || token instanceof TokenDocument
}
}