mirror of https://github.com/OpenRCT2/OpenRCT2.git
implement object_get_scenario_text
This commit is contained in:
IntelOrca
parent
c783898b36
commit
7190e4c3f6
190
src/object.c
190
src/object.c
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@ -18,8 +18,11 @@
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*****************************************************************************/
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#include <memory.h>
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#include <stdio.h>
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#include "addresses.h"
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#include "object.h"
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#include "sawyercoding.h"
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/**
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*
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@ -47,19 +50,188 @@ void object_unload(int groupIndex, rct_object_entry_extended *entry)
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RCT2_CALLPROC_X(0x006A9CAF, 0, groupIndex, 0, 0, 0, 0, (int)entry);
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}
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static int object_entry_compare(rct_object_entry *a, rct_object_entry *b)
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{
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if (a->flags & 0xF0) {
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if ((a->flags & 0x0F) != (b->flags & 0x0F))
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return 0;
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if (*((uint32*)a->name) != *((uint32*)b->name))
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return 0;
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if (*((uint32*)(&a->name[4])) != *((uint32*)(&b->name[4])))
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return 0;
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} else {
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if (a->flags != b->flags)
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return 0;
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if (*((uint32*)a->name) != *((uint32*)b->name))
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return 0;
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if (*((uint32*)(&a->name[4])) != *((uint32*)(&b->name[4])))
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return 0;
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if (a->checksum != b->checksum)
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return 0;
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}
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return 1;
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}
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static int object_calculate_checksum(rct_object_entry *entry, char *data, int dataLength)
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{
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int i;
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char *eee = (char*)entry;
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int checksum = 0xF369A75B;
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char *ccc = (char*)&checksum;
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*ccc ^= eee[0];
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checksum = rol32(checksum, 11);
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for (i = 4; i < 12; i++) {
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*ccc ^= eee[i];
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checksum = rol32(checksum, 11);
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}
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for (i = 0; i < dataLength; i++) {
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*ccc ^= data[i];
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checksum = rol32(checksum, 11);
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}
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return checksum;
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}
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int object_paint(int type, int eax, int ebx, int ecx, int edx, int esi, int edi, int ebp)
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{
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RCT2_CALLPROC_X(RCT2_ADDRESS(0x0098D9D4, uint32)[type], eax, ebx, ecx, edx, esi, edi, ebp);
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#ifdef _MSC_VER
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__asm jb success
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#else
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__asm__ goto ( "jb %l0" : : : : success );
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#endif
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return 0;
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success:
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return 1;
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}
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/**
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*
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* rct2: 0x006A9428
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*/
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int sub_6A9428(rct_object_entry* entry)
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int object_get_scenario_text(rct_object_entry *entry)
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{
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RCT2_CALLPROC_X(0x006A9428, 0, 0, 0, 0, 0, 0, (int)entry);
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#ifdef _MSC_VER
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__asm jb fail
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#else
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__asm__ goto ( "jb %l0" : : : : fail );
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#endif
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return 1;
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fail:
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// RCT2_CALLPROC_X(0x006A9428, 0, 0, 0, 0, 0, 0, (int)entry); return;
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int i;
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rct_object_entry *installedObject = RCT2_GLOBAL(0x009ADAE8, rct_object_entry*);
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for (i = 0; i < RCT2_GLOBAL(0x00F42B6C, sint32); i++) {
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if (object_entry_compare(installedObject, entry)) {
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char path[260];
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char *objectPath = (char*)installedObject + 16;
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subsitute_path(path, RCT2_ADDRESS(RCT2_ADDRESS_OBJECT_DATA_PATH, char), objectPath);
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rct_object_entry openedEntry;
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FILE *file = fopen(path, "rb");
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if (file != NULL) {
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fread(&openedEntry, sizeof(rct_object_entry), 1, file);
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if (object_entry_compare(&openedEntry, entry)) {
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// Get chunk size
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char *pos = (char*)installedObject + 16;
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do {
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pos++;
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} while (*(pos - 1) != 0);
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// Read chunk
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int chunkSize = *((uint32*)pos);
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char *chunk;
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if (chunkSize == 0xFFFFFFFF) {
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chunk = malloc(0x600000);
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chunkSize = sawyercoding_read_chunk(file, chunk);
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chunk = realloc(chunk, chunkSize);
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} else {
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chunk = malloc(chunkSize);
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sawyercoding_read_chunk(file, chunk);
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}
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fclose(file);
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// Calculate and check checksum
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if (object_calculate_checksum(&openedEntry, chunk, chunkSize) != openedEntry.checksum) {
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RCT2_GLOBAL(0x00F42BD9, uint8) = 2;
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free(chunk);
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return 0;
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}
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if (object_paint(openedEntry.flags & 0x0F, 2, 0, 0, 0, (int)chunk, 0, 0)) {
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RCT2_GLOBAL(0x00F42BD9, uint8) = 3;
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free(chunk);
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return 0;
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}
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int yyy = RCT2_GLOBAL(0x009ADAF0, uint32);
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RCT2_GLOBAL(0x009ADAF0, uint32) = 0x726E;
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RCT2_GLOBAL(0x009ADAF8, uint32) = (int)chunk;
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*((rct_object_entry*)0x00F42BC8) = openedEntry;
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RCT2_GLOBAL(0x009ADAFC, uint8) = 255;
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RCT2_GLOBAL(0x009ADAFD, uint8) = 1;
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object_paint(openedEntry.flags & 0x0F, 0, 0, 0, 0, (int)chunk, 0, 0);
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RCT2_GLOBAL(0x009ADAFC, uint8) = 0;
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RCT2_GLOBAL(0x009ADAFD, uint8) = 0;
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RCT2_GLOBAL(0x009ADAF0, uint32) = yyy;
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return 1;
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}
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fclose(file);
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}
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}
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installedObject = object_get_next(installedObject);
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}
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RCT2_GLOBAL(0x00F42BD9, uint8) = 0;
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return 0;
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}
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/**
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*
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* rct2: 0x006A982D
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*/
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void object_free_scenario_text()
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{
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if (RCT2_GLOBAL(0x009ADAF8, void*) != NULL) {
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free(RCT2_GLOBAL(0x009ADAF8, void*));
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RCT2_GLOBAL(0x009ADAF8, void*) = NULL;
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}
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}
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int object_get_length(rct_object_entry *entry)
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{
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return (int)object_get_next(entry) - (int)entry;
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}
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rct_object_entry *object_get_next(rct_object_entry *entry)
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{
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char *pos = (char*)entry;
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// Skip
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pos += 16;
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// Skip filename
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do {
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pos++;
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} while (*(pos - 1) != 0);
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// Skip
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pos += 4;
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// Skip name
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do {
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pos++;
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} while (*(pos - 1) != 0);
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// Skip
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pos += 4;
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// Skip
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pos += *pos++ * 16;
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// Skip theme objects
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pos += *pos++ * 16;
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// Skip
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pos += 4;
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return (rct_object_entry*)pos;
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}
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@ -52,6 +52,9 @@ void object_unload_all();
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int object_load(int groupIndex, rct_object_entry *entry);
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void object_unload(int groupIndex, rct_object_entry_extended *entry);
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int sub_6A9428(rct_object_entry* entry);
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int object_get_scenario_text(rct_object_entry *entry);
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void object_free_scenario_text();
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int object_get_length(rct_object_entry *entry);
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rct_object_entry *object_get_next(rct_object_entry *entry);
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#endif
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@ -69,42 +69,14 @@ struct { void **data; rct_object_entry_extended *entries; } object_entry_groups[
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static void object_list_examine()
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{
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int i;
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char *object;
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rct_object_entry *object;
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object = RCT2_GLOBAL(RCT2_ADDRESS_INSTALLED_OBJECT_LIST, char*);
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object = RCT2_GLOBAL(RCT2_ADDRESS_INSTALLED_OBJECT_LIST, rct_object_entry*);
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for (i = 0; i < RCT2_GLOBAL(0x00F42B6C, sint32); i++) {
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if (*object & 0xF0)
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if (object->flags & 0xF0)
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RCT2_GLOBAL(0x00F42BDA, uint8) |= 1;
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// Skip
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object += 16;
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// Skip filename
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// printf("%d %s : ", i, object);
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do {
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object++;
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} while (*(object - 1) != 0);
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// Skip
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object += 4;
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// Skip name
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// printf("%s\n", object);
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do {
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object++;
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} while (*(object - 1) != 0);
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// Skip
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object += 4;
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// Skip
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object += *object++ * 16;
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// Skip theme objects
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object += *object++ * 16;
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// Skip
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object += 4;
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object = object_get_next(object);
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}
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}
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@ -59,14 +59,12 @@ int scenario_load_basic(const char *path)
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// Checks for a scenario string object (possibly for localisation)
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if ((s6Info->entry.flags & 0xFF) != 255) {
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if (sub_6A9428(&s6Info->entry)) {
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if (object_get_scenario_text(&s6Info->entry)) {
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int ebp = RCT2_GLOBAL(0x009ADAF8, uint32);
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format_string(s6Info->name, RCT2_GLOBAL(ebp, sint16), NULL);
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format_string(s6Info->details, RCT2_GLOBAL(ebp + 4, sint16), NULL);
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RCT2_GLOBAL(0x009AA00C, uint8) = RCT2_GLOBAL(ebp + 6, uint8);
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// Disposes the scenario string object (0x009ADAF8)
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RCT2_CALLPROC_EBPSAFE(0x006A982D);
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object_free_scenario_text();
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}
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}
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return 1;
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