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wip power point

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CrazyRedMachine 2023-09-18 00:33:45 +02:00
parent f6610a55f1
commit 2be43727a4
1 changed files with 88 additions and 0 deletions
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88
popnhax/dllmain.cc
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@ -1824,20 +1824,77 @@ static bool force_show_details_result() {
uint8_t g_pfree_song_offset = 0x54;
uint16_t g_pfree_song_offset_2 = 0x558;
int32_t g_power_point_value = -1;
void (*popn22_get_powerpoints)();
void (*popn22_get_chart_level)();
/* hook is installed in stage increment function */
void (*real_pfree_cleanup)();
void hook_pfree_cleanup()
{
__asm("push esi\n");
__asm("push edi\n");
__asm("push eax\n");
__asm("push edx\n");
__asm("movsx eax, byte ptr [%0]\n"::"m"(g_pfree_song_offset));
__asm("movsx ebx, word ptr [%0]\n"::"m"(g_pfree_song_offset_2));
__asm("lea edi, dword ptr [esi+eax]\n");
__asm("lea esi, dword ptr [esi+ebx]\n");
__asm("push esi\n");
__asm("push edi\n");
/* compute powerpoints before cleanup */
__asm("mov eax, dword ptr [edi-0x38]\n"); //music id (TODO: check offset dans usaneko->kaimei)
__asm("push 0\n");
__asm("push eax\n");
__asm("mov al, byte ptr [edi-0x36]\n"); //sheet id (TODO: check que c'est bien 0x36 et pas 0x35)
__asm("call %0\n"::"b"(popn22_get_chart_level));
__asm("add esp, 8\n");
__asm("mov bl, byte ptr [edi+0x24]\n"); //medal (TODO: check offset dans usaneko->kaimei)
/* push "is full combo" */
__asm("cmp bl, 8\n");
__asm("setae dl\n");
__asm("movzx ecx, dl\n");
__asm("push ecx\n");
/* push "is clear" */
__asm("cmp bl, 4\n");
__asm("setae dl\n");
__asm("movzx ecx, dl\n");
__asm("push ecx\n");
__asm("mov ecx, eax\n"); //diff level
__asm("mov eax, dword ptr [edi]\n"); //score
__asm("call %0\n"::"b"(popn22_get_powerpoints));
__asm("mov %0, eax\n":"=a"(g_power_point_value):);
//__asm("call %0\n"::"r"(update_pplist));
/* can finally cleanup score */
__asm("pop edi\n");
__asm("pop esi\n");
__asm("mov ecx, 0x98");
__asm("rep movsd");
__asm("pop edx");
__asm("pop eax");
__asm("pop edi");
__asm("pop esi");
}
/* hook without the power point fixes (eclale best effort) */
void hook_pfree_cleanup_simple()
{
__asm("push esi\n");
__asm("push edi\n");
__asm("push eax\n");
__asm("push ebx\n");
__asm("push edx\n");
__asm("movsx eax, byte ptr [%0]\n"::"m"(g_pfree_song_offset));
__asm("movsx ebx, word ptr [%0]\n"::"m"(g_pfree_song_offset_2));
__asm("lea edi, dword ptr [esi+eax]\n");
__asm("lea esi, dword ptr [esi+ebx]\n");
__asm("mov ecx, 0x98");
__asm("rep movsd");
__asm("pop edx");
__asm("pop ebx");
__asm("pop eax");
__asm("pop edi");
@ -1848,6 +1905,7 @@ void hook_pfree_cleanup()
static bool patch_pfree() {
DWORD dllSize = 0;
char *data = getDllData(g_game_dll_fn, &dllSize);
bool simple = false;
/* stop stage counter (2 matches, 1st one is the good one) */
{
@ -1880,6 +1938,7 @@ static bool patch_pfree() {
offset_from_base = 0x54;
offset_from_stage1[0] = 0x04;
offset_from_stage1[1] = 0x05;
simple = true;
goto pfree_apply;
}
uint32_t child_fun_rel = *(uint32_t *) ((int64_t)data + offset - 0x04);
@ -1929,10 +1988,39 @@ pfree_apply:
uint64_t patch_addr = (int64_t)data + pattern_offset;
/* replace stage number increment with a score cleanup function */
if ( simple )
{
MH_CreateHook((LPVOID)patch_addr, (LPVOID)hook_pfree_cleanup_simple,
(void **)&real_pfree_cleanup);
LOG("popnhax: premium free enabled (WARN: no power points fix)\n");
return true;
}
MH_CreateHook((LPVOID)patch_addr, (LPVOID)hook_pfree_cleanup,
(void **)&real_pfree_cleanup);
}
/* fix power points */
{
int64_t pattern_offset = search(data, dllSize, "\x8A\xD8\x8B\x44\x24\x0C\xE8", 7, 0);
if (pattern_offset == -1) {
LOG("popnhax: pfree: cannot find get_power_points function\n");
return false;
}
popn22_get_chart_level = (void(*)()) (data + pattern_offset - 0x07);
}
{
int64_t pattern_offset = search(data, dllSize, "\x3D\x50\xC3\x00\x00\x7D\x05", 7, 0);
if (pattern_offset == -1) {
LOG("popnhax: pfree: cannot find get_power_points function\n");
return false;
}
popn22_get_powerpoints = (void(*)()) (data + pattern_offset);
}
//
LOG("popnhax: premium free enabled\n");
return true;