import type { Item } from "@/data/items";
import type { TypeName } from "@/types";
export interface ItemEffectResult {
attackMultiplier: { numerator: number; denominator: number };
specialAttackMultiplier: { numerator: number; denominator: number };
defenseMultiplier: { numerator: number; denominator: number };
specialDefenseMultiplier: { numerator: number; denominator: number };
moveTypeMultiplier: { numerator: number; denominator: number };
moveRestricted: boolean;
}
export const calculateItemEffects = (
item: Item | undefined,
pokemonName: string | undefined,
moveType: TypeName,
isPhysical: boolean,
): ItemEffectResult => {
const defaultResult: ItemEffectResult = {
attackMultiplier: { numerator: 1, denominator: 1 },
specialAttackMultiplier: { numerator: 1, denominator: 1 },
defenseMultiplier: { numerator: 1, denominator: 1 },
specialDefenseMultiplier: { numerator: 1, denominator: 1 },
moveTypeMultiplier: { numerator: 1, denominator: 1 },
moveRestricted: false,
};
if (!item) {
return defaultResult;
}
const typeEnhancingItems: Record<string, TypeName> = {
もくたん: "ほのお",
しんぴのしずく: "みず",
きせきのタネ: "くさ",
じしゃく: "でんき",
とけないこおり: "こおり",
どくバリ: "どく",
やわらかいすな: "じめん",
かたいいし: "いわ",
ぎんのこな: "むし",
のろいのおふだ: "ゴースト",
りゅうのキバ: "ドラゴン",
くろいメガネ: "あく",
メタルコート: "はがね",
シルクのスカーフ: "ノーマル",
くろおび: "かくとう",
するどいくちばし: "ひこう",
まがったスプーン: "エスパー",
};
const enhancedType = item.name ? typeEnhancingItems[item.name] : undefined;
if (enhancedType && enhancedType === moveType) {
if (isPhysical) {
return {
...defaultResult,
attackMultiplier: { numerator: 11, denominator: 10 },
};
} else {
return {
...defaultResult,
specialAttackMultiplier: { numerator: 11, denominator: 10 },
};
}
}
switch (item.name) {
case "こだわりハチマキ":
return {
...defaultResult,
attackMultiplier: { numerator: 3, denominator: 2 },
moveRestricted: true,
};
case "でんきだま":
if (pokemonName === "ピカチュウ") {
return {
...defaultResult,
specialAttackMultiplier: { numerator: 2, denominator: 1 },
};
}
break;
case "メタルパウダー":
if (pokemonName === "メタモン") {
return {
...defaultResult,
defenseMultiplier: { numerator: 2, denominator: 1 },
};
}
break;
case "ふといホネ":
if (pokemonName === "カラカラ" || pokemonName === "ガラガラ") {
return {
...defaultResult,
attackMultiplier: { numerator: 2, denominator: 1 },
};
}
break;
case "しんかいのキバ":
if (pokemonName === "パールル") {
return {
...defaultResult,
specialAttackMultiplier: { numerator: 2, denominator: 1 },
};
}
break;
case "しんかいのウロコ":
if (pokemonName === "パールル") {
return {
...defaultResult,
specialDefenseMultiplier: { numerator: 2, denominator: 1 },
};
}
break;
case "こころのしずく":
if (pokemonName === "ラティオス" || pokemonName === "ラティアス") {
return {
...defaultResult,
specialAttackMultiplier: { numerator: 3, denominator: 2 },
specialDefenseMultiplier: { numerator: 3, denominator: 2 },
};
}
break;
}
return defaultResult;
};
