daggerheart/module/data/adversary.mjs

const resourceField = () =>
    new foundry.data.fields.SchemaField({
        value: new foundry.data.fields.NumberField({ initial: 0, integer: true }),
        max: new foundry.data.fields.NumberField({ initial: 0, integer: true })
    });

export default class DhpAdversary extends foundry.abstract.TypeDataModel {
    static LOCALIZATION_PREFIXES = ['DAGGERHEART.Sheets.Adversary'];

    static defineSchema() {
        const fields = foundry.data.fields;
        return {
            tier: new fields.StringField({
                required: true,
                choices: SYSTEM.GENERAL.tiers,
                initial: SYSTEM.GENERAL.tiers.tier1.id
            }),
            type: new fields.StringField({
                required: true,
                choices: SYSTEM.ACTOR.adversaryTypes,
                initial: SYSTEM.ACTOR.adversaryTypes.standard.id
            }),
            description: new fields.HTMLField(),
            motivesAndTactics: new fields.HTMLField(),
            difficulty: new fields.NumberField({ required: true, initial: 1, integer: true }),
            damageThresholds: new fields.SchemaField({
                major: new fields.NumberField({ required: true, initial: 0, integer: true }),
                severe: new fields.NumberField({ required: true, initial: 0, integer: true })
            }),
            resources: new fields.SchemaField({
                hitPoints: resourceField(),
                stress: resourceField()
            }),
            attack: new fields.SchemaField({
                name: new fields.StringField({}),
                modifier: new fields.NumberField({ required: true, integer: true, initial: 0 }),
                range: new fields.StringField({
                    required: true,
                    choices: SYSTEM.GENERAL.range,
                    initial: SYSTEM.GENERAL.range.melee.id
                }),
                damage: new fields.SchemaField({
                    value: new fields.StringField(),
                    type: new fields.StringField({
                        required: true,
                        choices: SYSTEM.GENERAL.damageTypes,
                        initial: SYSTEM.GENERAL.damageTypes.physical.id
                    })
                })
            }),
            experiences: new fields.TypedObjectField(
                new fields.SchemaField({
                    name: new fields.StringField(),
                    value: new fields.NumberField({ required: true, integer: true, initial: 1 })
                })
            )
            /* Features waiting on pseudo-document data model addition */
        };
    }
}