add scenery group object loading

2026-01-16 03:23:15 +01:00 · 2016-06-26 00:06:55 +01:00
parent a07bbc6bce
commit 6912c537bb
4 changed files with 160 additions and 0 deletions
--- a/src/object/SceneryGroupObject.cpp
+++ b/src/object/SceneryGroupObject.cpp
@@ -0,0 +1,107 @@
+#pragma region Copyright (c) 2014-2016 OpenRCT2 Developers
+/*****************************************************************************
+ * OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
+ *
+ * OpenRCT2 is the work of many authors, a full list can be found in contributors.md
+ * For more information, visit https://github.com/OpenRCT2/OpenRCT2
+ *
+ * OpenRCT2 is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * A full copy of the GNU General Public License can be found in licence.txt
+ *****************************************************************************/
+#pragma endregion
+
+#include "../core/IStream.hpp"
+#include "../core/Memory.hpp"
+#include "SceneryGroupObject.h"
+
+extern "C"
+{
+    #include "../drawing/drawing.h"
+    #include "../localisation/localisation.h"
+}
+
+enum OBJ_STRING_ID
+{
+    OBJ_STRING_ID_NAME,
+};
+
+SceneryGroupObject::~SceneryGroupObject()
+{
+    Memory::Free(_items);
+}
+
+void SceneryGroupObject::ReadLegacy(IStream * stream)
+{
+    _legacyType.name = stream->ReadValue<rct_string_id>();
+    _legacyType.image = stream->ReadValue<uint32>();
+    stream->Seek(0x80 * 2, STREAM_SEEK_CURRENT);
+    _legacyType.entry_count = stream->ReadValue<uint8>();
+    _legacyType.var_107 = stream->ReadValue<uint8>();
+    _legacyType.var_108 = stream->ReadValue<uint8>();
+    _legacyType.pad_109 = stream->ReadValue<uint8>();
+    _legacyType.var_10A = stream->ReadValue<uint32>();
+
+    StringTable.Read(stream, OBJ_STRING_ID_NAME);
+    ReadItems(stream);
+    ImageTable.Read(stream);
+
+    _legacyType.var_107 = _numItems;
+}
+
+void SceneryGroupObject::Load()
+{
+    _legacyType.name = language_allocate_object_string(GetName());
+    _legacyType.image = gfx_object_allocate_images(ImageTable.GetImages(), ImageTable.GetCount());
+
+    _legacyType.entry_count = 0;
+    for (uint32 i = 0; i < _numItems; i++)
+    {
+        uint8 entryType;
+        uint8 entryIndex;
+        if (find_object_in_entry_group(&_items[i], &entryType, &entryIndex))
+        {
+            uint16 sceneryEntry = entryIndex;
+            switch (entryType) {
+            case OBJECT_TYPE_SMALL_SCENERY:                        break;
+            case OBJECT_TYPE_LARGE_SCENERY: sceneryEntry |= 0x300; break;
+            case OBJECT_TYPE_WALLS:         sceneryEntry |= 0x200; break;
+            case OBJECT_TYPE_PATH_BITS:     sceneryEntry |= 0x100; break;
+            default:                        sceneryEntry |= 0x400; break;
+            }
+
+            _legacyType.scenery_entries[_legacyType.entry_count] = sceneryEntry;
+            _legacyType.entry_count++;
+        }
+    }
+}
+
+void SceneryGroupObject::Unload()
+{
+    language_free_object_string(_legacyType.name);
+    gfx_object_free_images(_legacyType.image, ImageTable.GetCount());
+}
+
+const utf8 * SceneryGroupObject::GetName()
+{
+    return StringTable.GetString(OBJ_STRING_ID_NAME);
+}
+
+void SceneryGroupObject::ReadItems(IStream * stream)
+{
+    auto items = std::vector<rct_object_entry>();
+
+    uint8 endMarker;
+    while ((endMarker = stream->ReadValue<uint8>()) != 0xFF)
+    {
+        stream->Seek(-1, STREAM_SEEK_CURRENT);
+        rct_object_entry entry = stream->ReadValue<rct_object_entry>();
+        items.push_back(entry);
+    }
+
+    _numItems = items.size();
+    _items = Memory::DuplicateArray(items.data(), items.size());
+}