Fix bin_comp and factor out Patch struct to base lib.

enemize/src/lib.rs

@@ -0,0 +1,42 @@
+use std::io::Read;
+use std::path::{Path, PathBuf};
+
+use serde::Serialize;
+
+pub mod rom;
+
+#[derive(Serialize)]
+pub struct Patch {
+    pub address: usize,
+    pub patch_data: Vec<u8>,
+}
+
+#[derive(Serialize)]
+pub struct PatchSet {
+    filename: PathBuf,
+    patches: Vec<Patch>
+}
+
+impl PatchSet {
+    pub fn load(filename: Path) -> Result<PatchSet, anyhow::Error> {
+        let patches = {
+            let mut file = File::open(filename)?;
+            let mut buffer = std::io::BufReader::new(file);
+            serde_json::from_reader(buffer)?
+        };
+        PatchSet {
+            filename: filename.into(),
+            patches: patches
+        }
+    }
+
+    pub fn filename(&self) -> Path {
+        self.filename.as_path()
+    }
+
+    pub fn patchRom(&self, &mut rom: RomData) {
+        for patch in self.patches {
+            rom.patch_data(patch);
+        }
+    }
+}

enemize/src/rom.rs

@@ -0,0 +1,7 @@
+const ENEMIZER_INFO_SEED_OFFSET: usize = 0;
+const ENEMIZER_INFO_SEED_LENGTH: usize = 12;
+const ENEMIZER_INFO_VERSION_OFFSET: usize = ENEMIZER_INFO_SEED_OFFSET + ENEMIZER_INFO_SEED_LENGTH;
+const ENEMIZER_INFO_VERSION_LENGTH: usize = 8;
+const ENEMIZER_INFO_FLAGS_OFFSET: usize = ENEMIZER_INFO_VERSION_OFFSET + ENEMIZER_INFO_VERSION_LENGTH;
+const ENEMIZER_INFO_FLAGS_LENGTH: usize = 0x50;
+