From 93cf929f29dea490ed60e5300cacdd99886c988e Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Sat, 9 Sep 2023 20:09:50 -0400
Subject: Add the standalone portion of mapman.

---
 mapman/src/mapdump.cpp | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 mapman/src/mapdump.cpp

(limited to 'mapman/src/mapdump.cpp')

diff --git a/mapman/src/mapdump.cpp b/mapman/src/mapdump.cpp
new file mode 100644
index 0000000..6d8fbcc
--- /dev/null
+++ b/mapman/src/mapdump.cpp
@@ -0,0 +1,52 @@
+#include "mapdump.hpp"
+
+#include <zlib.h>
+
+bool load_dump(gzFile f, map_t &d)
+{
+    map_t ret;
+    if (gzread(f, &d.id, 4) < 4) return false;
+    int name_len;
+    if (gzread(f, &name_len, 4) < 4) return false;
+    if (name_len)
+    {
+        char *name = new char[name_len];
+        if (gzread(f, name, name_len) != name_len)
+        {
+            delete[] name;
+            return false;
+        }
+        d.custom_name = std::string(name);
+        delete[] name;
+    } else d.custom_name = std::string();
+    if (gzread(f, d.map_data.data(), 128 * 128) < 128 * 128)
+        return false;
+    return true;
+}
+
+bool load_dumps(const char *fn, std::vector<map_t> &dumps)
+{
+    gzFile f = gzopen(fn, "rb");
+    dumps.clear();
+    while (!gzeof(f))
+    {
+        map_t d;
+        if (load_dump(f, d))
+            dumps.emplace_back(std::move(d));
+    }
+    gzclose(f);
+    return dumps.size() != 0;
+}
+
+std::vector<int> load_tally(const char *fn)
+{
+    std::vector<int> ret;
+    gzFile f = gzopen(fn, "rb");
+    while (!gzeof(f))
+    {
+        int t;
+        gzread(f, &t, 4);
+        ret.push_back(t);
+    }
+    return ret;
+}
-- 
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