feat: chusanApp.exe patching

rust/src/modules/mempatcher.rs

@@ -0,0 +1,59 @@
+use std::path::Path;
+use anyhow::Result;
+use crate::model::patch::{Patch, PatchData, PatchFileVec, PatchSelection, PatchSelectionData};
+
+impl PatchSelection {
+    pub async fn render_to_file(
+        &self,
+        filename: &str,
+        patches: &PatchFileVec,
+        path: impl AsRef<Path>
+    ) -> Result<()> {
+        let mut res = "".to_owned();
+
+        for file in &patches.0 {
+            for list in &file.0 {
+                if list.filename != filename {
+                    continue;
+                }
+                for patch in &list.patches {
+                    if let Some(selection) = self.0.get(&patch.id) {
+                        res += &Self::render(filename, patch, selection);
+                    }
+                }
+            }
+        }
+
+        tokio::fs::write(path, res).await?;
+
+        Ok(())
+    }
+
+    fn render(filename: &str, patch: &Patch, sel: &PatchSelectionData) -> String {
+        let mut res = "".to_owned();
+        match &patch.data {
+            PatchData::Normal(data) => {
+                for p in &data.patches {
+                    res += &format!("{} F+{:X} ", filename, p.offset);
+                    for on in &p.on {
+                        res += &format!("{:02X}", on);
+                    }
+                    res += " ";
+                    for off in &p.off {
+                        res += &format!("{:02X}", off);
+                    }
+                    res += "\n";
+                }
+            },
+            PatchData::Number(data) => {
+                if let PatchSelectionData::Number(val) = sel {
+                    let width = (data.size as usize) * 2usize;
+                    res += &format!("{} F+{:X} {:0width$X} {:0width$X}", filename, data.offset, val, data.default, width = width);
+                } else {
+                    log::error!("invalid number patch {:?}", patch);
+                }
+            }
+        }
+        format!("{}\n", res)
+    }
+}