From 170042753196cfd99765c90809a3622f788d6089 Mon Sep 17 00:00:00 2001
From: zmarlon <marlon.klaus@icloud.com>
Date: Sun, 6 Apr 2025 14:45:25 +0200
Subject: [PATCH] Started working on world

---
 Content/Levels/InGame.umap           |  2 +-
 Source/land_of_barl/Cargo.toml       |  4 ++
 Source/land_of_barl/src/lib.rs       |  2 +
 Source/land_of_barl/src/world/mod.rs | 67 ++++++++++++++++++++++++++++
 4 files changed, 74 insertions(+), 1 deletion(-)
 create mode 100644 Source/land_of_barl/src/world/mod.rs

diff --git a/Content/Levels/InGame.umap b/Content/Levels/InGame.umap
index 616ef29..4793322 100644
--- a/Content/Levels/InGame.umap
+++ b/Content/Levels/InGame.umap
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:858daeb14b01631aec5d0a4050a0879c4bb5b961d6f3f5d99f4138874c4bdab6
+oid sha256:65c4a8cf39f10f101f0b2756ca5f14d9ac9ff3f4858bb8071f33785350456c81
 size 76477
diff --git a/Source/land_of_barl/Cargo.toml b/Source/land_of_barl/Cargo.toml
index 2dd3850..8f9dd71 100644
--- a/Source/land_of_barl/Cargo.toml
+++ b/Source/land_of_barl/Cargo.toml
@@ -4,6 +4,10 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+dirs = "6.0.0"
+rmp-serde = "1.3.0"
+serde = { version = "1.0.217", features = ["derive"] }
+thiserror = "2.0.11"
 
 [build-dependencies]
 bindgen = "0.71.1"
diff --git a/Source/land_of_barl/src/lib.rs b/Source/land_of_barl/src/lib.rs
index b93cf3f..5421431 100644
--- a/Source/land_of_barl/src/lib.rs
+++ b/Source/land_of_barl/src/lib.rs
@@ -1,3 +1,5 @@
+mod world;
+
 pub fn add(left: u64, right: u64) -> u64 {
     left + right
 }
diff --git a/Source/land_of_barl/src/world/mod.rs b/Source/land_of_barl/src/world/mod.rs
new file mode 100644
index 0000000..bde43f2
--- /dev/null
+++ b/Source/land_of_barl/src/world/mod.rs
@@ -0,0 +1,67 @@
+use serde::{Deserialize, Serialize};
+use std::fs;
+use std::path::PathBuf;
+use thiserror::Error;
+
+#[derive(Debug, Error)]
+pub enum Error {
+    #[error("{0}")]
+    Custom(String),
+    #[error("{0}")]
+    Io(#[from] std::io::Error),
+    #[error("{0}")]
+    RmpEncode(#[from] rmp_serde::encode::Error),
+    #[error("{0}")]
+    RmpDecode(#[from] rmp_serde::decode::Error),
+}
+
+fn get_save_dir() -> Result<PathBuf, Error> {
+    let path = dirs::home_dir()
+        .ok_or(Error::Custom("Failed to get home dir".into()))?
+        .join("land_of_barl");
+    if !path.exists() {
+        std::fs::create_dir_all(&path)?;
+    }
+    Ok(path)
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct SerializedWorld {
+    name: String,
+    day: u32,
+    time: f32,
+}
+
+impl SerializedWorld {
+    pub fn new(name: String) -> Self {
+        Self {
+            name,
+            day: 0,
+            time: 7.0,
+        }
+    }
+
+    pub fn save(&self) -> Result<(), Error> {
+        let path = Self::dir(&self.name)?;
+        if !path.exists() {
+            fs::create_dir_all(&path)?;
+        }
+
+        let content = rmp_serde::to_vec(self)?;
+        fs::write(path.join("world.dat"), content)?;
+
+        Ok(())
+    }
+
+    pub fn load(name: &str) -> Result<Self, Error> {
+        let path = Self::dir(name)?;
+
+        let content = fs::read(path.join("world.dat"))?;
+
+        Ok(rmp_serde::from_slice(&content)?)
+    }
+
+    fn dir(name: &str) -> Result<PathBuf, Error> {
+        Ok(get_save_dir()?.join(name))
+    }
+}