lua: inventory library

src/items/Inventories.cpp

@@ -0,0 +1,42 @@
+#include "Inventories.h"
+#include "../world/Level.h"
+#include "../world/World.h"
+
+Inventories::Inventories(Level& level) : level(level) {
+}
+
+Inventories::~Inventories() {
+}
+
+std::shared_ptr<Inventory> Inventories::create(size_t size) {
+    int64_t id = level.getWorld()->getNextInventoryId();
+    auto inv = std::make_shared<Inventory>(id, size);
+    store(inv);
+    return inv;
+}
+
+std::shared_ptr<Inventory> Inventories::createVirtual(size_t size) {
+    int64_t id;
+    do {
+        id = -std::max(1L, std::abs(random.rand64()));
+    } while (map.find(id) != map.end());
+
+    auto inv = std::make_shared<Inventory>(id, size);
+    store(inv);
+    return inv;
+}
+
+void Inventories::store(std::shared_ptr<Inventory> inv) {
+    map[inv->getId()] = inv;
+}
+
+std::shared_ptr<Inventory> Inventories::get(int64_t id) {
+    auto found = map.find(id);
+    if (found == map.end())
+        return nullptr;
+    return found->second;
+}
+
+const inventories_map& Inventories::getMap() const {
+    return map;
+}