78 lines
2.6 KiB
JavaScript
78 lines
2.6 KiB
JavaScript
import { ValidatedMethod } from 'meteor/mdg:validated-method';
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import { RateLimiterMixin } from 'ddp-rate-limiter-mixin';
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import SimpleSchema from 'simpl-schema';
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import CreatureProperties from '/imports/api/creature/creatureProperties/CreatureProperties.js';
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import getRootCreatureAncestor from '/imports/api/creature/creatureProperties/getRootCreatureAncestor.js';
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import { assertEditPermission } from '/imports/api/sharing/sharingPermissions.js';
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const damageProperty = new ValidatedMethod({
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name: 'creatureProperties.damage',
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validate: new SimpleSchema({
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_id: SimpleSchema.RegEx.Id,
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operation: {
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type: String,
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allowedValues: ['set', 'increment']
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},
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value: Number,
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}).validator(),
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mixins: [RateLimiterMixin],
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rateLimit: {
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numRequests: 20,
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timeInterval: 5000,
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},
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run({_id, operation, value}) {
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// Check permissions
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let property = CreatureProperties.findOne(_id);
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if (!property) throw new Meteor.Error(
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'Damage property failed', 'Property doesn\'t exist'
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);
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let rootCreature = getRootCreatureAncestor(property);
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assertEditPermission(rootCreature, this.userId);
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// Check if property can take damage
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let schema = CreatureProperties.simpleSchema(property);
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if (!schema.allowsKey('damage')){
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throw new Meteor.Error(
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'Damage property failed',
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`Property of type "${property.type}" can't be damaged`
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);
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}
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let result = damagePropertyWork({ property, operation, value });
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return result;
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},
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});
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export function damagePropertyWork({property, operation, value}){
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let damage, newValue;
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if (operation === 'set'){
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const total = property.total || 0;
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// Set represents what we want the value to be after damage
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// So we need the actual damage to get to that value
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damage = total - value;
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// Damage can't exceed total value
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if (damage > total) damage = total;
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// Damage must be positive
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if (damage < 0) damage = 0;
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newValue = property.total - damage;
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} else if (operation === 'increment'){
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let currentValue = property.value || 0;
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let currentDamage = property.damage || 0;
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let increment = value;
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// Can't increase damage above the remaining value
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if (increment > currentValue) increment = currentValue;
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// Can't decrease damage below zero
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if (-increment > currentDamage) increment = -currentDamage;
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damage = currentDamage + increment;
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newValue = property.total - damage;
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}
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// Write the results
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CreatureProperties.update(property._id, {
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$set: {damage, value: newValue, dirty: true}
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}, {
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selector: property
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});
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return damage;
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}
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export default damageProperty;
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