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use std::collections::HashMap;
use serde_json::Value;
use specs::{
Component,
HashMapStorage
};
use crate::{
Sprite
};
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum Slot {
Hand,
Body
}
impl Slot {
pub fn from_str(txt: &str) -> Option<Self> {
match txt {
"hand" => Some(Self::Hand),
"body" => Some(Self::Body),
_ => None
}
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum Stat {
Strength,
Defence,
Mining
}
impl Stat {
pub fn from_str(txt: &str) -> Option<Self> {
match txt {
"strength" => Some(Self::Strength),
"defence" => Some(Self::Defence),
"mining" => Some(Self::Mining),
_ => None
}
}
}
#[derive(Debug, Clone, PartialEq)]
pub struct Equippable {
pub slot: Slot,
pub stats: HashMap<Stat, i64>,
pub sprite: Option<Sprite>
}
impl Equippable {
pub fn from_json(val: &Value) -> Option<Self> {
Some(Equippable{
slot: Slot::from_str(val.get("slot")?.as_str()?)?,
stats: val
.get("stats")?
.as_object()?
.into_iter()
.map(|(k, v)|
Some((Stat::from_str(k.as_str())?, v.as_i64()?))
)
.collect::<Option<HashMap<Stat, i64>>>()?,
sprite: if let Some(spr) = val.get("sprite") {
Some(Sprite{name: spr.as_str()?.to_string()})
} else {None}
})
}
}
#[derive(Component, Debug, Clone)]
#[storage(HashMapStorage)]
pub struct Equipment {
pub slots: Vec<Slot>
}
#[cfg(test)]
mod tests {
use super::*;
use crate::hashmap;
use serde_json::json;
#[test]
fn slots() {
assert_eq!(Slot::from_str("hand"), Some(Slot::Hand));
assert_eq!(Slot::from_str("body"), Some(Slot::Body));
assert_eq!(Slot::from_str("hands"), None);
assert_eq!(Slot::from_str("head"), None);
}
#[test]
fn stats() {
assert_eq!(Stat::from_str("strength"), Some(Stat::Strength));
assert_eq!(Stat::from_str("defence"), Some(Stat::Defence));
assert_eq!(Stat::from_str("hand"), None);
assert_eq!(Stat::from_str("body"), None);
assert_eq!(Stat::from_str("attack"), None);
}
#[test]
fn equippable_from_json() {
assert_eq!(
Equippable::from_json(&json!({"slot": "hand", "stats": {"strength": 10}})),
Some(Equippable {slot: Slot::Hand, stats: hashmap!(Stat::Strength => 10), sprite: None})
);
}
}
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