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spacetac/src/core/effects/AttributeEffect.ts
2019-11-21 23:14:27 +01:00

52 lines
1.3 KiB
TypeScript

import { BaseBattleDiff } from "../diffs/BaseBattleDiff";
import { ShipAttributeDiff } from "../diffs/ShipAttributeDiff";
import { Drone } from "../Drone";
import { Ship } from "../Ship";
import { ShipAttributes, SHIP_VALUES_NAMES } from "../ShipValue";
import { BaseEffect } from "./BaseEffect";
/**
* Effect to modify an attribute.
*
* Attribute effects are stacking, and the value of an attribute is in fact the sum of all active attribute effects.
*/
export class AttributeEffect extends BaseEffect {
// Affected attribute
attrcode: keyof ShipAttributes
// Base value
value: number
constructor(attrcode: keyof ShipAttributes, value = 0) {
super("attr");
this.attrcode = attrcode;
this.value = value;
}
getOnDiffs(ship: Ship, source: Ship | Drone): BaseBattleDiff[] {
return [
new ShipAttributeDiff(ship, this.attrcode, { cumulative: this.value }, {}),
];
}
getOffDiffs(ship: Ship): BaseBattleDiff[] {
return [
new ShipAttributeDiff(ship, this.attrcode, {}, { cumulative: this.value }),
];
}
isBeneficial(): boolean {
return this.value >= 0;
}
getFullCode(): string {
return this.code + "-" + this.attrcode;
}
getDescription(): string {
let attrname = SHIP_VALUES_NAMES[this.attrcode];
return `${attrname} ${this.value > 0 ? "+" : "-"}${Math.abs(this.value)}`;
}
}