tdgame test branch by gemini.

2026-02-18 12:28:18 -05:00
parent 14b4d06495
commit 2ad5f13596
14 changed files with 2038 additions and 0 deletions
--- a/util/grid/mesh.hpp
+++ b/util/grid/mesh.hpp
@@ -335,6 +335,129 @@ public:
        else os << "  Polys (Cleared)   : " << 0 << "\n"; 
        os << "  colors            : " << _colors.size() << "\n";
    }
+
+    
+    void writeTo(FILE* f) const {
+        if (!f) return;
+        
+        fwrite(&id, sizeof(int), 1, f);
+        fwrite(&_subId, sizeof(int), 1, f);
+
+        size_t vCount = _vertices.size();
+        fwrite(&vCount, sizeof(size_t), 1, f);
+        if (vCount > 0) {
+            fwrite(_vertices.data(), sizeof(Vector3f), vCount, f);
+        }
+
+        size_t cCount = _colors.size();
+        fwrite(&cCount, sizeof(size_t), 1, f);
+        if (cCount > 0) {
+            fwrite(_colors.data(), sizeof(Color), cCount, f);
+        }
+
+        size_t pCount = _polys.size();
+        fwrite(&pCount, sizeof(size_t), 1, f);
+        for (const auto& p : _polys) {
+            size_t idxCount = p.size();
+            fwrite(&idxCount, sizeof(size_t), 1, f);
+            if (idxCount > 0) {
+                fwrite(p.data(), sizeof(int), idxCount, f);
+            }
+        }
+    }
+
+    static std::shared_ptr<Mesh> readFrom(FILE* f) {
+        if (!f) return nullptr;
+        
+        int r_id, r_subId;
+        if (fread(&r_id, sizeof(int), 1, f) != 1) return nullptr;
+        if (fread(&r_subId, sizeof(int), 1, f) != 1) return nullptr;
+
+        // Read Vertices
+        size_t vCount;
+        if (fread(&vCount, sizeof(size_t), 1, f) != 1) return nullptr;
+        std::vector<Vector3f> verts(vCount);
+        if (vCount > 0) {
+            fread(verts.data(), sizeof(Vector3f), vCount, f);
+        }
+
+        // Read Colors
+        size_t cCount;
+        if (fread(&cCount, sizeof(size_t), 1, f) != 1) return nullptr;
+        std::vector<Color> cols(cCount);
+        if (cCount > 0) {
+            fread(cols.data(), sizeof(Color), cCount, f);
+        }
+
+        // Read Polys
+        size_t pCount;
+        if (fread(&pCount, sizeof(size_t), 1, f) != 1) return nullptr;
+        std::vector<std::vector<int>> polys(pCount);
+        for (size_t i = 0; i < pCount; ++i) {
+            size_t idxCount;
+            if (fread(&idxCount, sizeof(size_t), 1, f) != 1) return nullptr;
+            polys[i].resize(idxCount);
+            if (idxCount > 0) {
+                fread(polys[i].data(), sizeof(int), idxCount, f);
+            }
+        }
+
+        return std::make_shared<Mesh>(r_id, verts, polys, cols, r_subId);
+    }
+
+    // Public API to save to a filename
+    bool save(const std::string& filename) const {
+        FILE* f = fopen(filename.c_str(), "wb");
+        if (!f) {
+            std::cerr << "Mesh::save failed to open: " << filename << std::endl;
+            return false;
+        }
+        writeTo(f);
+        fclose(f);
+        return true;
+    }
+
+    // Public API to load from a filename into this object
+    bool load(const std::string& filename) {
+        FILE* f = fopen(filename.c_str(), "rb");
+        if (!f) {
+            std::cerr << "Mesh::load failed to open: " << filename << std::endl;
+            return false;
+        }
+        
+        // Read into temporary variables first to ensure integrity
+        int r_id, r_subId;
+        if (fread(&r_id, sizeof(int), 1, f) != 1) { fclose(f); return false; }
+        if (fread(&r_subId, sizeof(int), 1, f) != 1) { fclose(f); return false; }
+
+        size_t vCount;
+        if (fread(&vCount, sizeof(size_t), 1, f) != 1) { fclose(f); return false; }
+        std::vector<Vector3f> verts(vCount);
+        if (vCount > 0) fread(verts.data(), sizeof(Vector3f), vCount, f);
+
+        size_t cCount;
+        if (fread(&cCount, sizeof(size_t), 1, f) != 1) { fclose(f); return false; }
+        std::vector<Color> cols(cCount);
+        if (cCount > 0) fread(cols.data(), sizeof(Color), cCount, f);
+
+        size_t pCount;
+        if (fread(&pCount, sizeof(size_t), 1, f) != 1) { fclose(f); return false; }
+        std::vector<std::vector<int>> polys(pCount);
+        for (size_t i = 0; i < pCount; ++i) {
+            size_t idxCount;
+            if (fread(&idxCount, sizeof(size_t), 1, f) != 1) { fclose(f); return false; }
+            polys[i].resize(idxCount);
+            if (idxCount > 0) fread(polys[i].data(), sizeof(int), idxCount, f);
+        }
+        
+        fclose(f);
+
+        // Apply to current object
+        this->id = r_id;
+        this->_subId = r_subId;
+        this->replace(verts, polys, cols);
+        return true;
+    }
 };

 class Scene {