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use std::collections::HashMap;
use serde::{Deserialize, Deserializer, de, Serialize};
use crate::{
Pos,
Template,
resources::RoomPermissions
};
#[derive(Debug, Clone)]
pub struct RoomTemplate {
pub size: (i64, i64),
pub spawn: Pos,
pub field: Vec<Vec<Template>>,
pub places: HashMap<String, Pos>,
pub permissions: RoomPermissions
}
#[derive(Debug, Clone, Serialize, Deserialize)]
struct RoomTemplateSave {
pub width: i64,
pub height: i64,
pub spawn: Pos,
pub field: Vec<String>,
pub mapping: HashMap<char, TemplateList>,
#[serde(default)]
pub places: HashMap<String, Pos>,
#[serde(default)]
pub permissions: RoomPermissions
}
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
#[serde(untagged)]
enum TemplateList {
Single(Template),
List(Vec<Template>)
}
impl<'de> Deserialize<'de> for RoomTemplate {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where D: Deserializer<'de>,
{
let rts = RoomTemplateSave::deserialize(deserializer)?;
let mut field = Vec::new();
let width = rts.width as usize;
let height = rts.height as usize;
field.resize_with(width * height, Vec::new);
for (y, row) in rts.field.iter().take(height).enumerate() {
for (x, ch) in row.chars().take(width).enumerate() {
let templates = rts.mapping.get(&ch).ok_or(de::Error::custom(format!("char {}not found in mapping", ch)))?.clone();
field[x + y * width] = match templates {
TemplateList::Single(temp) => vec![temp],
TemplateList::List(temps) => temps
}
}
}
Ok(Self {
size: (rts.width, rts.height),
spawn: rts.spawn,
field,
places: rts.places,
permissions: rts.permissions
})
}
}
#[cfg(test)]
mod tests {
use super::*;
use serde_json::json;
#[test]
fn simple_deserialize() {
RoomTemplate::deserialize(&json!({
"width": 6,
"height": 5,
"spawn": [1, 1],
"field": [
"######",
"#,,,,#",
"#,,,,#",
"#....#",
"######"
],
"mapping": {
"#": ["wall"],
",": "grass",
".": {"type": "grass", "args": [], "kwargs": {}}
}
})).unwrap();
}
}
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