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od parameter
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@Ciremun
Ciremun committed Jul 9, 2022
1 parent 9e0eef4 commit 7f7be7e
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Showing 4 changed files with 88 additions and 40 deletions.
14 changes: 10 additions & 4 deletions freedom/config.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -39,23 +39,29 @@ static void FreedomHandler_WriteAll(ImGuiContext *ctx, ImGuiSettingsHandler *han
buf->appendf("ar_value=%.1f\n", ar_parameter.value);
buf->appendf("cs_lock=%d\n", (int)cs_parameter.lock);
buf->appendf("cs_value=%.1f\n", cs_parameter.value);
buf->appendf("od_lock=%d\n", (int)od_parameter.lock);
buf->appendf("od_value=%.1f\n", od_parameter.value);
buf->appendf("visible=%d\n", cfg_mod_menu_visible);
buf->appendf("font_size=%d\n", cfg_font_size);
buf->append("\n");
}

static void FreedomHandler_ReadLine(ImGuiContext *, ImGuiSettingsHandler *, void *, const char *line)
{
int ar_lock_i, cs_lock_i, mod_menu_visible_i, font_size_i;
float ar_value_f, cs_value_f;
int ar_lock_i, cs_lock_i, od_lock_i, mod_menu_visible_i, font_size_i;
float ar_value_f, cs_value_f, od_value_f;
if (sscanf(line, "ar_lock=%d", &ar_lock_i) == 1)
ar_parameter.lock = ar_lock_i;
else if (sscanf(line, "cs_lock=%d", &cs_lock_i) == 1)
cs_parameter.lock = cs_lock_i;
else if (sscanf(line, "ar_value=%f", &ar_value_f) == 1)
ar_parameter.value = ar_value_f;
else if (sscanf(line, "cs_lock=%d", &cs_lock_i) == 1)
cs_parameter.lock = cs_lock_i;
else if (sscanf(line, "cs_value=%f", &cs_value_f) == 1)
cs_parameter.value = cs_value_f;
else if (sscanf(line, "od_lock=%d", &od_lock_i) == 1)
od_parameter.lock = od_lock_i;
else if (sscanf(line, "od_value=%f", &od_value_f) == 1)
od_parameter.value = od_value_f;
else if (sscanf(line, "visible=%d", &mod_menu_visible_i) == 1)
cfg_mod_menu_visible = mod_menu_visible_i;
else if (sscanf(line, "font_size=%d", &font_size_i) == 1)
Expand Down
106 changes: 72 additions & 34 deletions freedom/detours.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@ Parameter ar_parameter = {
10.0f, // value
0x2C, // offset
"AR: %.1f", // slider_fmt
"Failed to find AR offsets", // error_message
"AR Offsets Not Found", // error_message
enable_ar_hooks, // enable
disable_ar_hooks, // disable
// bool found = false
Expand All @@ -16,24 +16,37 @@ Parameter cs_parameter = {
4.0f, // value
0x30, // offset
"CS: %.1f", // slider_fmt
"Failed to find CS offsets", // error_message
"CS Offsets Not Found", // error_message
enable_cs_hooks, // enable
disable_cs_hooks, // disable
// bool found = false
};

Parameter od_parameter = {
false, // lock
8.0f, // value
0x38, // offset
"OD: %.1f", // slider_fmt
"OD Offsets Not Found", // error_message
enable_od_hooks, // enable
disable_od_hooks, // disable
// bool found = false
};

twglSwapBuffers wglSwapBuffersGateway;
void_trampoline empty_trampoline;

uintptr_t parse_beatmap_metadata_code_start = 0;

uintptr_t approach_rate_offset_1 = 0;
uintptr_t approach_rate_offset_2 = 0;
uintptr_t approach_rate_offsets[2] = {0};
uintptr_t ar_hook_jump_back = 0;

uintptr_t circle_size_offsets[3] = {0};
uintptr_t cs_hook_jump_back = 0;

uintptr_t overall_difficulty_offsets[2] = {0};
uintptr_t od_hook_jump_back = 0;

Hook SwapBuffersHook;

Hook ApproachRateHook1;
Expand All @@ -43,47 +56,51 @@ Hook CircleSizeHook_1;
Hook CircleSizeHook_2;
Hook CircleSizeHook_3;

Hook OverallDifficultyHook_1;
Hook OverallDifficultyHook_2;

void try_find_hook_offsets()
{
parse_beatmap_metadata_code_start = code_start_for_parse_beatmap_metadata();
if (!parse_beatmap_metadata_code_start)
return;
const uint8_t approach_rate_1_signature[] = { 0x8B, 0x85, 0xB0, 0xFE, 0xFF, 0xFF, 0xD9, 0x58, 0x2C, 0xEB };
const uint8_t approach_rate_2_signature[] = { 0x8B, 0x85, 0xB0, 0xFE, 0xFF, 0xFF, 0xD9, 0x58, 0x2C, 0xC7, 0x45, 0xB0, 0x01, 0x00, 0x00, 0x00 };
const uint8_t circle_size_signature[] = { 0x8B, 0x85, 0xB0, 0xFE, 0xFF, 0xFF, 0xD9, 0x58, 0x30, 0xE9 };
const uint8_t approach_rate_signature[] = { 0x8B, 0x85, 0xB0, 0xFE, 0xFF, 0xFF, 0xD9, 0x58, 0x2C };
const uint8_t circle_size_signature[] = { 0x8B, 0x85, 0xB0, 0xFE, 0xFF, 0xFF, 0xD9, 0x58, 0x30 };
const uint8_t overall_difficulty_signature[] = { 0x8B, 0x85, 0xB0, 0xFE, 0xFF, 0xFF, 0xD9, 0x58, 0x38 };
int approach_rate_offsets_idx = 0;
int circle_size_offsets_idx = 0;

int overall_difficulty_offsets_idx = 0;
for (uintptr_t start = parse_beatmap_metadata_code_start + 0x1000; start - parse_beatmap_metadata_code_start <= 0x1CFF; ++start)
{
if (!approach_rate_offset_1 &&
memcmp((uint8_t *)start, approach_rate_1_signature, sizeof(approach_rate_1_signature)) == 0)
approach_rate_offset_1 = start - parse_beatmap_metadata_code_start + 0x6;
if (!approach_rate_offset_2 &&
memcmp((uint8_t *)start, approach_rate_2_signature, sizeof(approach_rate_2_signature)) == 0)
approach_rate_offset_2 = start - parse_beatmap_metadata_code_start;
if (circle_size_offsets_idx != 3 &&
if (approach_rate_offsets_idx < 2 &&
memcmp((uint8_t *)start, approach_rate_signature, sizeof(approach_rate_signature)) == 0)
approach_rate_offsets[approach_rate_offsets_idx++] = start - parse_beatmap_metadata_code_start;
if (circle_size_offsets_idx < 3 &&
memcmp((uint8_t *)start, circle_size_signature, sizeof(circle_size_signature)) == 0)
circle_size_offsets[circle_size_offsets_idx++] = start - parse_beatmap_metadata_code_start;
if (overall_difficulty_offsets_idx < 2 &&
memcmp((uint8_t *)start, overall_difficulty_signature, sizeof(overall_difficulty_signature)) == 0)
overall_difficulty_offsets[overall_difficulty_offsets_idx++] = start - parse_beatmap_metadata_code_start;
}
ar_hook_jump_back = parse_beatmap_metadata_code_start + approach_rate_offset_2 + 0x9;
ar_hook_jump_back = parse_beatmap_metadata_code_start + approach_rate_offsets[1] + 0x9;
cs_hook_jump_back = parse_beatmap_metadata_code_start + circle_size_offsets[0] + 0x9;
ar_parameter.found = approach_rate_offset_1 && approach_rate_offset_2;
cs_parameter.found = (bool)circle_size_offsets[2];
od_hook_jump_back = parse_beatmap_metadata_code_start + overall_difficulty_offsets[1] + 0x9;
ar_parameter.found = approach_rate_offsets[1] > 0;
cs_parameter.found = circle_size_offsets[2] > 0;
od_parameter.found = overall_difficulty_offsets[1] > 0;
}

void init_hooks()
{
if (ar_parameter.found)
{
ApproachRateHook1 = Hook((BYTE *)parse_beatmap_metadata_code_start + approach_rate_offset_1, (BYTE *)set_approach_rate_1, (BYTE *)&empty_trampoline, 5);
ApproachRateHook2 = Hook((BYTE *)parse_beatmap_metadata_code_start + approach_rate_offset_2, (BYTE *)set_approach_rate_2, (BYTE *)&empty_trampoline, 9);
ApproachRateHook1 = Hook((BYTE *)parse_beatmap_metadata_code_start + approach_rate_offsets[0], (BYTE *)set_approach_rate, (BYTE *)&empty_trampoline, 9);
ApproachRateHook2 = Hook((BYTE *)parse_beatmap_metadata_code_start + approach_rate_offsets[1], (BYTE *)set_approach_rate, (BYTE *)&empty_trampoline, 9);
if (ar_parameter.lock)
enable_ar_hooks();
}
else
{
ar_parameter.lock = false;
}

if (cs_parameter.found)
{
Expand All @@ -94,9 +111,29 @@ void init_hooks()
enable_cs_hooks();
}
else
{
cs_parameter.lock = false;

if (od_parameter.found)
{
OverallDifficultyHook_1 = Hook((BYTE *)parse_beatmap_metadata_code_start + overall_difficulty_offsets[0], (BYTE *)set_overall_difficulty, (BYTE *)&empty_trampoline, 9);
OverallDifficultyHook_2 = Hook((BYTE *)parse_beatmap_metadata_code_start + overall_difficulty_offsets[1], (BYTE *)set_overall_difficulty, (BYTE *)&empty_trampoline, 9);
if (od_parameter.lock)
enable_od_hooks();
}
else
od_parameter.lock = false;
}

void enable_od_hooks()
{
OverallDifficultyHook_1.Enable();
OverallDifficultyHook_2.Enable();
}

void disable_od_hooks()
{
OverallDifficultyHook_1.Disable();
OverallDifficultyHook_2.Disable();
}

void enable_cs_hooks()
Expand Down Expand Up @@ -125,17 +162,7 @@ void disable_ar_hooks()
ApproachRateHook2.Disable();
}

__declspec(naked) void set_approach_rate_1()
{
__asm {
fstp dword ptr [eax+0x2C]
mov ebx, ar_parameter.value
mov dword ptr [eax+0x2C], ebx
jmp [ar_hook_jump_back]
}
}

__declspec(naked) void set_approach_rate_2()
__declspec(naked) void set_approach_rate()
{
__asm {
mov eax, dword ptr [ebp-0x00000150]
Expand All @@ -156,3 +183,14 @@ __declspec(naked) void set_circle_size()
jmp [cs_hook_jump_back]
}
}

__declspec(naked) void set_overall_difficulty()
{
__asm {
mov eax, dword ptr [ebp-0x00000150]
fstp dword ptr [eax+0x38]
mov ebx, od_parameter.value
mov dword ptr [eax+0x38], ebx
jmp [od_hook_jump_back]
}
}
1 change: 1 addition & 0 deletions freedom/freedom.cpp
View file
Original file line number Diff line number Diff line change
Expand Up @@ -231,6 +231,7 @@ BOOL __stdcall freedom_update(HDC hDc)
{
parameter_slider(current_song_ptr, &ar_parameter);
parameter_slider(current_song_ptr, &cs_parameter);
parameter_slider(current_song_ptr, &od_parameter);

ImGuiContext &g = *ImGui::GetCurrentContext();
static char preview_font_size[16] = {0};
Expand Down
7 changes: 5 additions & 2 deletions include/detours.h
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ struct Parameter

extern Parameter ar_parameter;
extern Parameter cs_parameter;
extern Parameter od_parameter;

extern twglSwapBuffers wglSwapBuffersGateway;
extern void_trampoline empty_trampoline;
Expand All @@ -40,7 +41,9 @@ void disable_ar_hooks();
void enable_cs_hooks();
void disable_cs_hooks();

void set_approach_rate_1();
void set_approach_rate_2();
void enable_od_hooks();
void disable_od_hooks();

void set_approach_rate();
void set_circle_size();
void set_overall_difficulty();

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