add drain power points

src/module/powers/banish.js

@@ -65,7 +65,6 @@ export class BanishEffect extends PowerEffect {
     const rollOpts = {
       title: 'Spirit roll to resist banishment',
       flavor: 'Roll Spirit to resist banishment!',
-      modCallback: getPowerModifiers,
       targetNumber: this.data.tn,
     };
     await requestRollFromTokens(this.targets, 'ability', 'spirit', rollOpts);

src/module/powers/drainPowerPoints.js

@@ -0,0 +1,83 @@
+import { requestRollFromTokens } from '../helpers.js';
+import { PowerEffect } from './basePowers.js';
+
+export class DrainPowerPointsEffect extends PowerEffect {
+  get name() {
+    return 'Drain Power Points';
+  }
+
+  get icon() {
+    return 'icons/magic/control/debuff-energy-hold-teal-blue.webp';
+  }
+
+  get duration() {
+    return 0;
+  }
+
+  get basePowerPoints() {
+    return 2;
+  }
+
+  get usePrimaryEffect() {
+    return false;
+  }
+
+  get isTargeted() {
+    return true;
+  }
+
+  get isRaisable() {
+    return false;
+  }
+
+  get oneTarget() {
+    return true;
+  }
+
+  get modifiers() {
+    return [
+      ...super.modifiers,
+      {
+        type: 'checkbox',
+        name: 'Power',
+        id: 'power',
+        epic: false,
+        effect: false,
+        value: 2,
+      },
+      {
+        type: 'number',
+        default: 4,
+        name: 'Opposed Target Number',
+        id: 'tn',
+        epic: false,
+        effect: false,
+        value: 0,
+      },
+    ];
+  }
+
+  async sideEffects() {
+    await super.sideEffects();
+    const rollOpts = {
+      title: 'Resist Drain Power Points',
+      flavor: 'Resist the energy drain!',
+      mods: [{ label: 'Different Arcane Background', value: 2, ignore: true }],
+      targetNumber: this.data.tn,
+    };
+    await requestRollFromTokens(this.targets, 'ability', 'spirit', rollOpts);
+  }
+
+  get description() {
+    return (
+      super.description +
+      `
+      <p>An opposed roll of the caster's arcane activation roll vs the target's
+      Spirit. Caster's success means the victim loses
+      [[/r ${this.data.power ? '2' : '1'}d6]] power points. If the caster gets
+      a raise over the opponent, the stolen power points augment the caster's
+      own total.</p>
+      `
+    );
+  }
+}

src/module/powers/powers.js

@@ -19,6 +19,7 @@ import { DetectConcealArcanaEffect } from './detectConcealArcana.js';
 import { DisguiseEffect } from './disguise.js';
 import { DispelEffect } from './dispel.js';
 import { DivinationEffect } from './divination.js';
+import { DrainPowerPointsEffect } from './drainPowerPoints.js';
 
 const PowerClasses = {
   'arcane-protection': ArcaneProtectionEffect,
@@ -45,6 +46,7 @@ const PowerClasses = {
   disguise: DisguiseEffect,
   dispel: DispelEffect,
   divination: DivinationEffect,
+  'drain-power-points': DrainPowerPointsEffect,
   'lower-trait': BoostLowerTraitEffect,
 };
 

src/module/rollHelpers.js

@@ -95,6 +95,9 @@ export async function preDamageRollModifiers(actor, item, roll, modifiers, optio
 export async function getPowerModifiers(token) {
   const modifiers = [];
   _addArcaneModifiers(token, modifiers);
+  for (const modifier of modifiers) {
+    modifier.value *= -1;
+  }
   return modifiers;
 }
 
@@ -119,9 +122,9 @@ function _addRangeModifiers(token, target, options, modifiers) {
 
 function _addArcaneModifiers(target, modifiers) {
   if (_findItem(target.actor, 'edge', 'improved-arcane-resistance')) {
-    modifiers.push({ label: 'Arcane Resistance', value: '-4', ignore: true });
+    modifiers.push({ label: 'Arcane Resistance', value: -4, ignore: true });
   } else if (_findItem(target.actor, 'edge', 'arcane-resistance')) {
-    modifiers.push({ label: 'Arcane Resistance', value: '-2', ignore: true });
+    modifiers.push({ label: 'Arcane Resistance', value: -2, ignore: true });
   }
   const effect = target.actor.effects.find((e) => !e.disabled && e.name.toLowerCase().includes('arcane protection'));
   if (effect) {