mirror of https://github.com/OpenRCT2/OpenRCT2.git
930 lines
28 KiB
C
930 lines
28 KiB
C
#pragma region Copyright (c) 2014-2016 OpenRCT2 Developers
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/*****************************************************************************
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* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
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*
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* OpenRCT2 is the work of many authors, a full list can be found in contributors.md
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* For more information, visit https://github.com/OpenRCT2/OpenRCT2
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*
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* OpenRCT2 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* A full copy of the GNU General Public License can be found in licence.txt
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*****************************************************************************/
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#pragma endregion
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#include "addresses.h"
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#include "config.h"
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#include "game.h"
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#include "localisation/localisation.h"
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#include "object.h"
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#include "object_list.h"
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#include "platform/platform.h"
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#include "rct1.h"
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#include "ride/track.h"
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#include "ride/track_design.h"
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#include "util/sawyercoding.h"
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#include "world/entrance.h"
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#include "world/footpath.h"
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#include "world/scenery.h"
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#include "world/water.h"
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#define FILTER_VERSION 1
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#pragma pack(push, 1)
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typedef struct rct_plugin_header {
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uint32 total_files;
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uint32 total_file_size;
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uint32 date_modified_checksum;
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uint32 object_list_size;
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uint32 object_list_no_items;
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} rct_plugin_header;
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assert_struct_size(rct_plugin_header, 20);
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#pragma pack(pop)
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// 98DA00
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int object_entry_group_counts[] = {
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128, // rides
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252, // small scenery
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128, // large scenery
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128, // walls
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32, // banners
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16, // paths
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15, // path bits
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19, // scenery sets
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1, // park entrance
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1, // water
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1 // scenario text
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};
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// 98DA2C
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int object_entry_group_encoding[] = {
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CHUNK_ENCODING_RLE,
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CHUNK_ENCODING_RLE,
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CHUNK_ENCODING_RLE,
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CHUNK_ENCODING_RLE,
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CHUNK_ENCODING_RLE,
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CHUNK_ENCODING_RLE,
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CHUNK_ENCODING_RLE,
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CHUNK_ENCODING_RLE,
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CHUNK_ENCODING_RLE,
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CHUNK_ENCODING_RLE,
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CHUNK_ENCODING_ROTATE
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};
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#if NO_RCT2
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rct_ride_entry *gRideEntries[128];
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rct_small_scenery_entry *gSmallSceneryEntries[252];
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rct_large_scenery_entry *gLargeSceneryEntries[128];
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rct_wall_scenery_entry *gWallSceneryEntries[128];
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rct_banner *gBannerSceneryEntries[32];
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rct_footpath_entry *gFootpathEntries[16];
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rct_path_bit_scenery_entry *gFootpathAdditionEntries[15];
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rct_scenery_set_entry *gSceneryGroupEntries[19];
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rct_entrance_type *gParkEntranceEntries[1];
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rct_water_type *gWaterEntries[1];
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rct_stex_entry *gStexEntries[1];
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#endif
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// 0x98D97C chunk address', 0x98D980 object_entries
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const rct_object_entry_group object_entry_groups[] = {
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(void**)(gRideEntries ), (rct_object_entry_extended*)(0x00F3F03C ), // rides
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(void**)(gSmallSceneryEntries ), (rct_object_entry_extended*)(0x00F3F03C + (128 * 20)), // small scenery 0x009AD1A4, 0xF2FA3C
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(void**)(gLargeSceneryEntries ), (rct_object_entry_extended*)(0x00F3F03C + (380 * 20)), // large scenery 0x009AD594, 0xF40DEC
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(void**)(gWallSceneryEntries ), (rct_object_entry_extended*)(0x00F3F03C + (508 * 20)), // walls 0x009AD794, 0xF417EC
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(void**)(gBannerSceneryEntries ), (rct_object_entry_extended*)(0x00F3F03C + (636 * 20)), // banners 0x009AD994, 0xF421EC
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(void**)(gFootpathEntries ), (rct_object_entry_extended*)(0x00F3F03C + (668 * 20)), // paths 0x009ADA14, 0xF4246C
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(void**)(gFootpathAdditionEntries ), (rct_object_entry_extended*)(0x00F3F03C + (684 * 20)), // path bits 0x009ADA54, 0xF425AC
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(void**)(gSceneryGroupEntries ), (rct_object_entry_extended*)(0x00F3F03C + (699 * 20)), // scenery sets 0x009ADA90, 0xF426D8
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(void**)(gParkEntranceEntries ), (rct_object_entry_extended*)(0x00F3F03C + (718 * 20)), // park entrance 0x009ADADC, 0xF42854
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(void**)(gWaterEntries ), (rct_object_entry_extended*)(0x00F3F03C + (719 * 20)), // water 0x009ADAE0, 0xF42868
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(void**)(gStexEntries ), (rct_object_entry_extended*)(0x00F3F03C + (720 * 20)) // scenario text 0x009ADAE4, 0xF4287C
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};
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static int object_list_cache_load(int totalFiles, uint64 totalFileSize, int fileDateModifiedChecksum);
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static int object_list_cache_save(int fileCount, uint64 totalFileSize, int fileDateModifiedChecksum, int currentItemOffset);
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void object_list_create_hash_table();
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static uint32 install_object_entry(rct_object_entry* entry, rct_object_entry* installed_entry, const char* path, rct_object_filters* filter);
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static void load_object_filter(rct_object_entry* entry, uint8* chunk, rct_object_filters* filter);
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static rct_object_filters *_installedObjectFilters = NULL;
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rct_stex_entry *gStexTempChunk;
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uint32 gInstalledObjectsCount;
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rct_object_entry *gInstalledObjects;
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uint32 gNumInstalledRCT2Objects;
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uint32 gNumInstalledCustomObjects;
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void *gLastLoadedObjectChunkData;
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static void get_plugin_path(utf8 *outPath)
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{
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platform_get_user_directory(outPath, NULL);
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strcat(outPath, "plugin.dat");
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}
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static uintptr_t object_get_length_cached(const rct_object_entry **entryCache, const size_t index)
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{
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return (uintptr_t)entryCache[index + 1] - (uintptr_t)entryCache[index];
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}
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static rct_object_entry **_entryCache = NULL;
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static int object_comparator(const void *left, const void *right)
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{
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const size_t leftIndex = *(const size_t *)left;
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const size_t rightIndex = *(const size_t *)right;
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const char *leftName = object_get_name(_entryCache[leftIndex]);
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const char *rightName = object_get_name(_entryCache[rightIndex]);
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return strcmp(leftName, rightName);
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}
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static void object_list_sort()
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{
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rct_object_entry **objectBuffer, *newBuffer, *entry, *destEntry;
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rct_object_filters *newFilters = NULL, *destFilter = NULL;
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int numObjects, bufferSize;
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size_t entrySize;
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objectBuffer = &gInstalledObjects;
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numObjects = gInstalledObjectsCount;
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_entryCache = malloc((numObjects + 1)* sizeof(rct_object_entry*));
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size_t *sortLUT = malloc((numObjects + 1) * sizeof(size_t));
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entry = *objectBuffer;
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// This loop initialises entry cache, so it doesn't have to be called 17M
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// times, but only a few thousand.
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int i = 0;
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do {
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_entryCache[i] = entry;
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sortLUT[i] = i;
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} while (i++ < numObjects && (entry = object_get_next(entry)));
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qsort(sortLUT, numObjects, sizeof(size_t), object_comparator);
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// Get buffer size
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bufferSize = (uintptr_t)entry - (uintptr_t)*objectBuffer;
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// Create new buffer
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newBuffer = (rct_object_entry*)malloc(bufferSize);
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destEntry = newBuffer;
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if (_installedObjectFilters) {
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newFilters = malloc(numObjects * sizeof(rct_object_filters));
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destFilter = newFilters;
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}
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// Copy over sorted objects
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for (int i = 0; i < numObjects; i++) {
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entrySize = object_get_length_cached((const rct_object_entry **)_entryCache, sortLUT[i]);
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memcpy(destEntry, _entryCache[sortLUT[i]], entrySize);
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destEntry = (rct_object_entry*)((uintptr_t)destEntry + entrySize);
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if (_installedObjectFilters)
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destFilter[i] = _installedObjectFilters[sortLUT[i]];
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}
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free(_entryCache);
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free(sortLUT);
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// Replace old buffer
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free(*objectBuffer);
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*objectBuffer = newBuffer;
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if (_installedObjectFilters) {
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free(_installedObjectFilters);
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_installedObjectFilters = newFilters;
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}
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}
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static uint32 object_list_count_custom_objects()
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{
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uint32 numCustomObjects = 0;
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rct_object_entry *object = gInstalledObjects;
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for (uint32 i = 0; i < gInstalledObjectsCount; i++) {
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if ((object->flags & 0xF0) == 0) {
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numCustomObjects++;
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}
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object = object_get_next(object);
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}
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gNumInstalledCustomObjects = numCustomObjects;
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return numCustomObjects;
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}
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/**
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*
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* rct2: 0x006A93CD
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*/
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static void object_list_examine()
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{
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object_list_count_custom_objects();
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object_list_sort();
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object_list_create_hash_table();
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}
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/**
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*
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* rct2: 0x006A9FC0
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*/
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void reset_loaded_objects()
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{
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reset_type_to_ride_entry_index_map();
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RCT2_GLOBAL(RCT2_ADDRESS_TOTAL_NO_IMAGES, uint32) = 0xF26E;
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for (int type = 0; type < 11; ++type){
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for (int j = 0; j < object_entry_group_counts[type]; j++){
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uint8* chunk = object_entry_groups[type].chunks[j];
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if (chunk != (uint8*)-1)
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object_load(type, chunk, j);
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}
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}
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}
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static int object_list_query_directory(int *outTotalFiles, uint64 *outTotalFileSize, int *outFileDateModifiedChecksum)
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{
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int enumFileHandle, totalFiles, fileDateModifiedChecksum;
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uint64 totalFileSize;
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file_info enumFileInfo;
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totalFiles = 0;
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totalFileSize = 0;
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fileDateModifiedChecksum = 0;
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// Enumerate through each object in the directory
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enumFileHandle = platform_enumerate_files_begin(RCT2_ADDRESS(RCT2_ADDRESS_OBJECT_DATA_PATH, char));
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if (enumFileHandle == INVALID_HANDLE)
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return 0;
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while (platform_enumerate_files_next(enumFileHandle, &enumFileInfo)) {
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totalFiles++;
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totalFileSize += enumFileInfo.size;
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fileDateModifiedChecksum ^=
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(uint32)(enumFileInfo.last_modified >> 32) ^
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(uint32)(enumFileInfo.last_modified & 0xFFFFFFFF);
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fileDateModifiedChecksum = ror32(fileDateModifiedChecksum, 5);
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}
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platform_enumerate_files_end(enumFileHandle);
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*outTotalFiles = totalFiles;
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*outTotalFileSize = totalFileSize;
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*outFileDateModifiedChecksum = fileDateModifiedChecksum;
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return 1;
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}
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/**
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*
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* rct2: 0x006A8B40
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*/
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void object_list_load()
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{
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int enumFileHandle, totalFiles, fileDateModifiedChecksum;
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uint64 totalFileSize;
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file_info enumFileInfo;
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int ok = object_list_query_directory(&totalFiles, &totalFileSize, &fileDateModifiedChecksum);
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if (ok != 1) {
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return;
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}
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// Would move this into cache load, but its used further on
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totalFiles = ror32(totalFiles, 24);
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totalFiles = (totalFiles & ~0xFF) | 1;
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totalFiles = rol32(totalFiles, 24);
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if (object_list_cache_load(totalFiles, totalFileSize, fileDateModifiedChecksum)) {
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return;
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}
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// Dispose installed object list
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reset_loaded_objects();
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SafeFree(gInstalledObjects);
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gInstalledObjectsCount = 0;
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gInstalledObjects = (rct_object_entry*)malloc(4096);
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if (gInstalledObjects == NULL) {
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log_error("Failed to allocate memory for object list");
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rct2_exit_reason(835, 3162);
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return;
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}
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uint32 fileCount = 0;
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uint32 objectCount = 0;
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size_t currentEntryOffset = 0;
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gNumInstalledRCT2Objects = 0;
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log_verbose("building cache of available objects...");
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if (_installedObjectFilters) {
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free(_installedObjectFilters);
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_installedObjectFilters = NULL;
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}
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enumFileHandle = platform_enumerate_files_begin(RCT2_ADDRESS(RCT2_ADDRESS_OBJECT_DATA_PATH, char));
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if (enumFileHandle != INVALID_HANDLE) {
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size_t installedObjectsCapacity = 4096;
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while (platform_enumerate_files_next(enumFileHandle, &enumFileInfo)) {
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fileCount++;
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if ((installedObjectsCapacity - currentEntryOffset) <= 2842){
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installedObjectsCapacity += 4096;
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gInstalledObjects = (rct_object_entry*)realloc(gInstalledObjects, installedObjectsCapacity);
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if (gInstalledObjects == NULL) {
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log_error("Failed to allocate memory for object list");
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rct2_exit_reason(835, 3162);
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return;
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}
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}
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char path[MAX_PATH];
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substitute_path(path, RCT2_ADDRESS(RCT2_ADDRESS_OBJECT_DATA_PATH, char), enumFileInfo.path);
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rct_object_entry entry;
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if (object_load_entry(path, &entry)) {
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_installedObjectFilters = realloc(_installedObjectFilters, sizeof(rct_object_filters) * (objectCount + 1));
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rct_object_entry *installedEntry = (rct_object_entry*)((size_t)gInstalledObjects + currentEntryOffset);
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rct_object_filters filter;
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size_t newEntrySize = install_object_entry(&entry, installedEntry, enumFileInfo.path, &filter);
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if (newEntrySize != 0) {
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_installedObjectFilters[objectCount] = filter;
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objectCount++;
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currentEntryOffset += newEntrySize;
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}
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}
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}
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platform_enumerate_files_end(enumFileHandle);
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}
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reset_loaded_objects();
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object_list_cache_save(fileCount, totalFileSize, fileDateModifiedChecksum, currentEntryOffset);
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// Reload track list
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ride_list_item ride_list;
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ride_list.entry_index = 0xFC;
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ride_list.type = 0xFC;
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// track_load_list(ride_list);
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object_list_examine();
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}
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static int object_list_cache_load(int totalFiles, uint64 totalFileSize, int fileDateModifiedChecksum)
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{
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char path[MAX_PATH];
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SDL_RWops *file;
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rct_plugin_header pluginHeader;
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uint32 filterVersion = 0;
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log_verbose("loading object list cache (plugin.dat)");
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get_plugin_path(path);
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file = SDL_RWFromFile(path, "rb");
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if (file == NULL) {
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log_verbose("Unable to load %s", path);
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return 0;
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}
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if (SDL_RWread(file, &pluginHeader, sizeof(rct_plugin_header), 1) == 1) {
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// Check if object repository has changed in anyway
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if (
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pluginHeader.total_files == totalFiles &&
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pluginHeader.total_file_size == totalFileSize &&
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pluginHeader.date_modified_checksum == fileDateModifiedChecksum
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) {
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// Dispose installed object list
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SafeFree(gInstalledObjects);
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// Read installed object list
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gInstalledObjects = (rct_object_entry*)malloc(pluginHeader.object_list_size);
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if (SDL_RWread(file, gInstalledObjects, pluginHeader.object_list_size, 1) == 1) {
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gInstalledObjectsCount = pluginHeader.object_list_no_items;
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if (pluginHeader.object_list_no_items != (pluginHeader.total_files & 0xFFFFFF))
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log_error("Potential mismatch in file numbers. Possible corrupt file. Consider deleting plugin.dat.");
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if (SDL_RWread(file, &filterVersion, sizeof(filterVersion), 1) == 1) {
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if (filterVersion == FILTER_VERSION) {
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if (_installedObjectFilters != NULL) {
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free(_installedObjectFilters);
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}
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_installedObjectFilters = malloc(sizeof(rct_object_filters) * pluginHeader.object_list_no_items);
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if (SDL_RWread(file, _installedObjectFilters, sizeof(rct_object_filters) * pluginHeader.object_list_no_items, 1) == 1) {
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SDL_RWclose(file);
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reset_loaded_objects();
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object_list_examine();
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return 1;
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}
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}
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}
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log_info("Filter version updated... updating object list cache");
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}
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}
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else if (pluginHeader.total_files != totalFiles) {
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int fileCount = totalFiles - pluginHeader.total_files;
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if (fileCount < 0) {
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log_info("%d object removed... updating object list cache", abs(fileCount));
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} else {
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log_info("%d object added... updating object list cache", fileCount);
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}
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} else if (pluginHeader.total_file_size != totalFileSize) {
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log_info("Objects files size changed... updating object list cache");
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} else if (pluginHeader.date_modified_checksum != fileDateModifiedChecksum) {
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log_info("Objects files have been updated... updating object list cache");
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}
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SDL_RWclose(file);
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return 0;
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}
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SDL_RWclose(file);
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log_error("loading object list cache failed");
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return 0;
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}
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static int object_list_cache_save(int fileCount, uint64 totalFileSize, int fileDateModifiedChecksum, int currentItemOffset)
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{
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utf8 path[MAX_PATH];
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SDL_RWops *file;
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rct_plugin_header pluginHeader;
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uint32 filterVersion = FILTER_VERSION;
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log_verbose("saving object list cache (plugin.dat)");
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pluginHeader.total_files = fileCount | 0x01000000;
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pluginHeader.total_file_size = (uint32)totalFileSize;
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pluginHeader.date_modified_checksum = fileDateModifiedChecksum;
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pluginHeader.object_list_size = currentItemOffset;
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pluginHeader.object_list_no_items = gInstalledObjectsCount;
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get_plugin_path(path);
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file = SDL_RWFromFile(path,"wb");
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if (file == NULL) {
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log_error("Failed to save %s", path);
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return 0;
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}
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SDL_RWwrite(file, &pluginHeader, sizeof(rct_plugin_header), 1);
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SDL_RWwrite(file, gInstalledObjects, pluginHeader.object_list_size, 1);
|
|
SDL_RWwrite(file, &filterVersion, sizeof(filterVersion), 1);
|
|
SDL_RWwrite(file, _installedObjectFilters, sizeof(rct_object_filters) * gInstalledObjectsCount, 1);
|
|
SDL_RWclose(file);
|
|
return 1;
|
|
}
|
|
|
|
int check_object_entry(rct_object_entry *entry)
|
|
{
|
|
uint32 *dwords = (uint32*)entry;
|
|
return (0xFFFFFFFF & dwords[0] & dwords[1] & dwords[2] & dwords[3]) + 1 != 0;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* rct2: 0x006AB344
|
|
*/
|
|
void object_create_identifier_name(char* string_buffer, const rct_object_entry* object)
|
|
{
|
|
for (uint8 i = 0; i < 8; ++i){
|
|
if (object->name[i] != ' '){
|
|
*string_buffer++ = object->name[i];
|
|
}
|
|
}
|
|
|
|
*string_buffer++ = '/';
|
|
|
|
for (uint8 i = 0; i < 4; ++i){
|
|
uint8 flag_part = (object->flags >> (i * 8)) & 0xFF;
|
|
*string_buffer++ = RCT2_ADDRESS(0x0098DA64, char)[flag_part >> 4];
|
|
*string_buffer++ = RCT2_ADDRESS(0x0098DA64, char)[flag_part & 0xF];
|
|
}
|
|
|
|
for (uint8 i = 0; i < 4; ++i){
|
|
uint8 checksum_part = (object->checksum >> (i * 8)) & 0xFF;
|
|
*string_buffer++ = RCT2_ADDRESS(0x0098DA64, char)[checksum_part >> 4];
|
|
*string_buffer++ = RCT2_ADDRESS(0x0098DA64, char)[checksum_part & 0xF];
|
|
}
|
|
*string_buffer++ = '\0';
|
|
}
|
|
|
|
/**
|
|
*
|
|
* rct2: 0x675827
|
|
*/
|
|
void set_load_objects_fail_reason()
|
|
{
|
|
rct_object_entry *object;
|
|
memcpy(&object, gCommonFormatArgs, sizeof(rct_object_entry*));
|
|
|
|
int expansion = (object->flags & 0xFF) >> 4;
|
|
if (expansion == 0 ||
|
|
expansion == 8 ||
|
|
RCT2_GLOBAL(RCT2_ADDRESS_EXPANSION_FLAGS, uint16) & (1 << expansion)
|
|
) {
|
|
char* string_buffer = RCT2_ADDRESS(0x9BC677, char);
|
|
|
|
format_string(string_buffer, STR_MISSING_OBJECT_DATA_ID, 0);
|
|
|
|
object_create_identifier_name(string_buffer, object);
|
|
gErrorType = ERROR_TYPE_FILE_LOAD;
|
|
gErrorStringId = STR_PLACEHOLDER;
|
|
return;
|
|
}
|
|
|
|
rct_string_id expansionNameId;
|
|
switch(expansion) {
|
|
case 1: // Wacky Worlds
|
|
expansionNameId = STR_OBJECT_FILTER_WW;
|
|
break;
|
|
case 2: // Time Twister
|
|
expansionNameId = STR_OBJECT_FILTER_TT;
|
|
break;
|
|
default:
|
|
gErrorType = ERROR_TYPE_FILE_LOAD;
|
|
gErrorStringId = STR_REQUIRES_AN_ADDON_PACK;
|
|
return;
|
|
}
|
|
|
|
char* string_buffer = RCT2_ADDRESS(0x9BC677, char);
|
|
|
|
format_string(string_buffer, STR_REQUIRES_THE_FOLLOWING_ADDON_PACK, &expansionNameId);
|
|
|
|
gErrorType = ERROR_TYPE_FILE_LOAD;
|
|
gErrorStringId = STR_PLACEHOLDER;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* rct2: 0x006AA0C6
|
|
*/
|
|
bool object_read_and_load_entries(SDL_RWops* rw)
|
|
{
|
|
// Read all the object entries
|
|
rct_object_entry *entries = malloc(OBJECT_ENTRY_COUNT * sizeof(rct_object_entry));
|
|
sawyercoding_read_chunk(rw, (uint8*)entries);
|
|
bool result = object_load_entries(entries);
|
|
free(entries);
|
|
return result;
|
|
}
|
|
|
|
bool object_load_entries(rct_object_entry* entries)
|
|
{
|
|
log_verbose("loading required objects");
|
|
|
|
object_unload_all();
|
|
|
|
bool loadFailed = false;
|
|
// Load each object
|
|
for (int i = 0; i < OBJECT_ENTRY_COUNT; i++) {
|
|
if (!check_object_entry(&entries[i])) {
|
|
continue;
|
|
}
|
|
|
|
// Get entry group index
|
|
int entryGroupIndex = i;
|
|
for (int j = 0; j < countof(object_entry_group_counts); j++) {
|
|
if (entryGroupIndex < object_entry_group_counts[j])
|
|
break;
|
|
entryGroupIndex -= object_entry_group_counts[j];
|
|
}
|
|
|
|
// Load the obect
|
|
if (!object_load_chunk(entryGroupIndex, &entries[i], NULL)) {
|
|
log_error("failed to load entry: %.8s", entries[i].name);
|
|
memcpy(gCommonFormatArgs, &entries[i], sizeof(rct_object_entry));
|
|
loadFailed = true;
|
|
}
|
|
}
|
|
|
|
if (loadFailed) {
|
|
object_unload_all();
|
|
return false;
|
|
}
|
|
|
|
log_verbose("finished loading required objects");
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
*
|
|
* rct2: 0x006A9CE8
|
|
*/
|
|
void object_unload_all()
|
|
{
|
|
int i, j;
|
|
|
|
for (i = 0; i < OBJECT_ENTRY_GROUP_COUNT; i++)
|
|
for (j = 0; j < object_entry_group_counts[i]; j++)
|
|
if (object_entry_groups[i].chunks[j] != (uint8*)0xFFFFFFFF)
|
|
object_unload_chunk((rct_object_entry*)&object_entry_groups[i].entries[j]);
|
|
|
|
reset_loaded_objects();
|
|
}
|
|
|
|
|
|
|
|
uint32 _installedObjectHashTableSize;
|
|
rct_object_entry ** _installedObjectHashTable = NULL;
|
|
|
|
uint32 _installedObjectHashTableCollisions;
|
|
|
|
uint32 object_get_hash_code(rct_object_entry *object)
|
|
{
|
|
uint32 hash = 5381;
|
|
for (int i = 0; i < 8; i++)
|
|
hash = ((hash << 5) + hash) + object->name[i];
|
|
|
|
return hash;
|
|
}
|
|
|
|
void object_list_create_hash_table()
|
|
{
|
|
rct_object_entry *installedObject;
|
|
int numInstalledObjects = gInstalledObjectsCount;
|
|
|
|
if (_installedObjectHashTable != NULL)
|
|
free(_installedObjectHashTable);
|
|
|
|
_installedObjectHashTableSize = max(8192, numInstalledObjects * 4);
|
|
_installedObjectHashTable = calloc(_installedObjectHashTableSize, sizeof(rct_object_entry*));
|
|
_installedObjectHashTableCollisions = 0;
|
|
|
|
installedObject = gInstalledObjects;
|
|
for (int i = 0; i < numInstalledObjects; i++) {
|
|
uint32 hash = object_get_hash_code(installedObject);
|
|
uint32 index = hash % _installedObjectHashTableSize;
|
|
|
|
// Find empty slot
|
|
while (_installedObjectHashTable[index] != NULL) {
|
|
_installedObjectHashTableCollisions++;
|
|
index++;
|
|
if (index >= _installedObjectHashTableSize) index = 0;
|
|
}
|
|
|
|
// Set hash table slot
|
|
_installedObjectHashTable[index] = installedObject;
|
|
|
|
// Next installed object
|
|
installedObject = object_get_next(installedObject);
|
|
}
|
|
}
|
|
|
|
/**
|
|
*
|
|
* rct2: 0x006A9DA2
|
|
* bl = entry_index
|
|
* ecx = entry_type
|
|
*/
|
|
int find_object_in_entry_group(rct_object_entry* entry, uint8* entry_type, uint8* entry_index){
|
|
*entry_type = entry->flags & 0xF;
|
|
|
|
rct_object_entry_group entry_group = object_entry_groups[*entry_type];
|
|
for (*entry_index = 0;
|
|
*entry_index < object_entry_group_counts[*entry_type];
|
|
++(*entry_index),
|
|
entry_group.chunks++,
|
|
entry_group.entries++){
|
|
|
|
if (*entry_group.chunks == (uint8*)-1) continue;
|
|
|
|
if (object_entry_compare((rct_object_entry*)entry_group.entries, entry))break;
|
|
}
|
|
|
|
if (*entry_index == object_entry_group_counts[*entry_type])return 0;
|
|
return 1;
|
|
}
|
|
|
|
rct_object_entry *object_list_find_by_name(const char * name)
|
|
{
|
|
rct_object_entry entry;
|
|
memcpy(entry.name, name, 8);
|
|
|
|
uint32 hash = object_get_hash_code(&entry);
|
|
uint32 index = hash % _installedObjectHashTableSize;
|
|
|
|
while (_installedObjectHashTable[index] != NULL) {
|
|
if (memcmp(_installedObjectHashTable[index]->name, entry.name, 8) == 0)
|
|
return _installedObjectHashTable[index];
|
|
|
|
index++;
|
|
if (index >= _installedObjectHashTableSize) index = 0;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
rct_object_entry *object_list_find(rct_object_entry *entry)
|
|
{
|
|
uint32 hash = object_get_hash_code(entry);
|
|
uint32 index = hash % _installedObjectHashTableSize;
|
|
|
|
while (_installedObjectHashTable[index] != NULL) {
|
|
if (object_entry_compare( _installedObjectHashTable[index], entry))
|
|
return _installedObjectHashTable[index];
|
|
|
|
index++;
|
|
if (index >= _installedObjectHashTableSize) index = 0;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
rct_string_id object_get_name_string_id(rct_object_entry *entry, const void *chunk)
|
|
{
|
|
int objectType = entry->flags & 0x0F;
|
|
switch (objectType) {
|
|
case OBJECT_TYPE_RIDE:
|
|
return ((rct_ride_entry*)chunk)->name;
|
|
case OBJECT_TYPE_SMALL_SCENERY:
|
|
case OBJECT_TYPE_LARGE_SCENERY:
|
|
case OBJECT_TYPE_WALLS:
|
|
case OBJECT_TYPE_BANNERS:
|
|
case OBJECT_TYPE_PATH_BITS:
|
|
return ((rct_scenery_entry*)chunk)->name;
|
|
case OBJECT_TYPE_PATHS:
|
|
return ((rct_footpath_entry*)chunk)->string_idx;
|
|
case OBJECT_TYPE_SCENERY_SETS:
|
|
return ((rct_scenery_set_entry*)chunk)->name;
|
|
case OBJECT_TYPE_PARK_ENTRANCE:
|
|
return ((rct_entrance_type*)chunk)->string_idx;
|
|
case OBJECT_TYPE_WATER:
|
|
return ((rct_water_type*)chunk)->string_idx;
|
|
case OBJECT_TYPE_SCENARIO_TEXT:
|
|
return ((rct_stex_entry*)chunk)->scenario_name;
|
|
default:
|
|
return STR_NONE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Installs an object_entry at the desired installed_entry address
|
|
* Returns the size of the new entry. Will return 0 on failure.
|
|
*/
|
|
static uint32 install_object_entry(rct_object_entry* entry, rct_object_entry* installed_entry, const char* path, rct_object_filters* filter){
|
|
uint8* installed_entry_pointer = (uint8*) installed_entry;
|
|
|
|
/** Copy all known information into the install entry **/
|
|
memcpy(installed_entry_pointer, entry, sizeof(rct_object_entry));
|
|
installed_entry_pointer += sizeof(rct_object_entry);
|
|
|
|
strcpy((char *)installed_entry_pointer, path);
|
|
while (*installed_entry_pointer++);
|
|
|
|
// Chunk size is set to unknown
|
|
*((sint32*)installed_entry_pointer) = -1;
|
|
// No unknown objects set to 0
|
|
*(installed_entry_pointer + 4) = 0;
|
|
// No theme objects set to 0
|
|
*((sint32*)(installed_entry_pointer + 5)) = 0;
|
|
*((uint16*)(installed_entry_pointer + 9)) = 0;
|
|
*((uint32*)(installed_entry_pointer + 11)) = 0;
|
|
|
|
RCT2_GLOBAL(RCT2_ADDRESS_TOTAL_NO_IMAGES, uint32) = 0xF26E;
|
|
|
|
gInstalledObjectsCount++;
|
|
|
|
// This is a variable used by object_load to decide if it should
|
|
// use object_paint on the entry.
|
|
RCT2_GLOBAL(0x009ADAFD, uint8) = 1;
|
|
|
|
// Probably used by object paint.
|
|
RCT2_GLOBAL(0x009ADAF4, uint32) = 0xF42BDB;
|
|
|
|
/** Use object_load_file to fill in missing chunk information **/
|
|
int chunk_size;
|
|
if (!object_load_file(-1, entry, &chunk_size, installed_entry)){
|
|
log_error("Object Load File failed. Potentially corrupt file: %.8s", entry->name);
|
|
RCT2_GLOBAL(0x009ADAF4, sint32) = -1;
|
|
RCT2_GLOBAL(0x009ADAFD, uint8) = 0;
|
|
gInstalledObjectsCount--;
|
|
return 0;
|
|
}
|
|
|
|
// See above note
|
|
RCT2_GLOBAL(0x009ADAF4, sint32) = -1;
|
|
RCT2_GLOBAL(0x009ADAFD, uint8) = 0;
|
|
|
|
if ((entry->flags & 0xF0) == 0x80) {
|
|
gNumInstalledRCT2Objects++;
|
|
if (gNumInstalledRCT2Objects > 772){
|
|
log_error("Incorrect number of vanilla RCT2 objects.");
|
|
gNumInstalledRCT2Objects--;
|
|
gInstalledObjectsCount--;
|
|
object_unload_chunk(entry);
|
|
return 0;
|
|
}
|
|
}
|
|
*((sint32*)installed_entry_pointer) = chunk_size;
|
|
installed_entry_pointer += 4;
|
|
|
|
uint8* chunk = (uint8*)gLastLoadedObjectChunkData; // Loaded in object_load
|
|
|
|
load_object_filter(entry, chunk, filter);
|
|
|
|
// Always extract only the vehicle type, since the track type is always displayed in the left column, to prevent duplicate track names.
|
|
rct_string_id nameStringId = object_get_name_string_id(entry, chunk);
|
|
if (nameStringId == STR_NONE) {
|
|
nameStringId = (rct_string_id)RCT2_GLOBAL(RCT2_ADDRESS_CURR_OBJECT_BASE_STRING_ID, uint32);
|
|
}
|
|
|
|
strcpy((char *)installed_entry_pointer, language_get_string(nameStringId));
|
|
while (*installed_entry_pointer++);
|
|
|
|
// This is deceptive. Due to setting the total no images earlier to 0xF26E
|
|
// this is actually the no_images in this entry.
|
|
*((uint32*)installed_entry_pointer) = RCT2_GLOBAL(RCT2_ADDRESS_TOTAL_NO_IMAGES, uint32) - 0xF26E;
|
|
installed_entry_pointer += 4;
|
|
|
|
uint8* esi = RCT2_ADDRESS(0x00F42BDB, uint8);
|
|
uint8 num_unk_objects = *esi++;
|
|
*installed_entry_pointer++ = num_unk_objects;
|
|
if (num_unk_objects > 0) {
|
|
memcpy(installed_entry_pointer, esi, num_unk_objects * sizeof(rct_object_entry));
|
|
installed_entry_pointer += num_unk_objects * sizeof(rct_object_entry);
|
|
esi += num_unk_objects * sizeof(rct_object_entry);
|
|
}
|
|
|
|
uint8 no_theme_objects = *esi++;
|
|
*installed_entry_pointer++ = no_theme_objects;
|
|
if (no_theme_objects > 0) {
|
|
memcpy(installed_entry_pointer, esi, no_theme_objects * sizeof(rct_object_entry));
|
|
installed_entry_pointer += no_theme_objects * sizeof(rct_object_entry);
|
|
}
|
|
|
|
*((uint32*)installed_entry_pointer) = RCT2_GLOBAL(0x00F433DD, uint32);
|
|
installed_entry_pointer += 4;
|
|
|
|
uint32 size_of_object = installed_entry_pointer - (uint8*)installed_entry;
|
|
|
|
object_unload_chunk(entry);
|
|
|
|
return size_of_object;
|
|
}
|
|
|
|
static void load_object_filter(rct_object_entry* entry, uint8* chunk, rct_object_filters* filter)
|
|
{
|
|
rct_ride_entry *rideType;
|
|
rct_ride_filters *rideFilter;
|
|
|
|
switch (entry->flags & 0xF) {
|
|
case OBJECT_TYPE_RIDE:
|
|
rideType = ((rct_ride_entry*)chunk);
|
|
rideFilter = &(filter->ride);
|
|
|
|
rideFilter->category[0] = rideType->category[0];
|
|
rideFilter->category[1] = rideType->category[1];
|
|
|
|
for (int i = 0; i < 3; i++) {
|
|
rideFilter->ride_type = rideType->ride_type[i];
|
|
if (rideFilter->ride_type != 255)
|
|
break;
|
|
}
|
|
break;
|
|
case OBJECT_TYPE_SMALL_SCENERY:
|
|
case OBJECT_TYPE_LARGE_SCENERY:
|
|
case OBJECT_TYPE_WALLS:
|
|
case OBJECT_TYPE_BANNERS:
|
|
case OBJECT_TYPE_PATHS:
|
|
case OBJECT_TYPE_PATH_BITS:
|
|
case OBJECT_TYPE_SCENERY_SETS:
|
|
case OBJECT_TYPE_PARK_ENTRANCE:
|
|
case OBJECT_TYPE_WATER:
|
|
case OBJECT_TYPE_SCENARIO_TEXT:
|
|
break;
|
|
}
|
|
}
|
|
|
|
rct_object_filters *get_object_filter(int index)
|
|
{
|
|
return &_installedObjectFilters[index];
|
|
}
|
|
|
|
void object_list_init()
|
|
{
|
|
for (uint8 objectType = 0; objectType < OBJECT_ENTRY_GROUP_COUNT; objectType++) {
|
|
for (size_t i = 0; i < (size_t)object_entry_group_counts[objectType]; i++) {
|
|
object_entry_groups[objectType].chunks[i] = (void*)-1;
|
|
}
|
|
}
|
|
}
|
|
|
|
void *get_loaded_object_entry(size_t index)
|
|
{
|
|
uint8 objectType = OBJECT_TYPE_RIDE;
|
|
for (size_t i = 0; i < OBJECT_ENTRY_GROUP_COUNT; i++) {
|
|
size_t groupCount = object_entry_group_counts[i];
|
|
if (index >= groupCount) {
|
|
index -= object_entry_group_counts[i];
|
|
objectType++;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
void *entry = object_entry_groups[objectType].chunks[index];
|
|
return entry;
|
|
}
|