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Compact PC Brutal Peeps memory patch payload

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Incentive
2026-06-07 03:32:00 -04:00
parent 1ef2a7e1e2
commit e3c7f77440
2 changed files with 34 additions and 27 deletions
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src/SendCommands.cc
+12 -17
View File
@@ -1115,6 +1115,14 @@ static std::vector<std::pair<std::string, std::shared_ptr<AsyncPromise<C_Execute
return static_cast<uint32_t>(scaled_f);
};
auto append_patch_entry = [&](std::string& out, uint32_t offset, uint32_t value, uint8_t size) {
append_u32l(out, offset);
out.push_back(static_cast<char>(size));
for (uint8_t x = 0; x < size; x++) {
out.push_back(static_cast<char>((value >> (x * 8)) & 0xFF));
}
};
constexpr uint32_t last_needed_offset =
ultimate_block_offset + ((num_bp_rows - 1) * stats_row_size) + ultimate_exp_row_offset + 4;
if (vanilla_data.size() < last_needed_offset) {
@@ -1140,12 +1148,7 @@ static std::vector<std::pair<std::string, std::shared_ptr<AsyncPromise<C_Execute
uint16_t old_atp = read_u16l(vanilla_data, atp_file_offset);
uint16_t new_atp = scale_u16(old_atp, atp_mult);
append_u32l(suffix, atp_patch_offset);
suffix.push_back(static_cast<char>(new_atp & 0xFF));
patch_entry_count++;
append_u32l(suffix, atp_patch_offset + 1);
suffix.push_back(static_cast<char>((new_atp >> 8) & 0xFF));
append_patch_entry(suffix, atp_patch_offset, new_atp, 2);
patch_entry_count++;
const uint32_t hp_file_offset = row_file_offset + ultimate_hp_row_offset;
@@ -1153,12 +1156,7 @@ static std::vector<std::pair<std::string, std::shared_ptr<AsyncPromise<C_Execute
uint16_t old_hp = read_u16l(vanilla_data, hp_file_offset);
uint16_t new_hp = scale_u16(old_hp, hp_mult);
append_u32l(suffix, hp_patch_offset);
suffix.push_back(static_cast<char>(new_hp & 0xFF));
patch_entry_count++;
append_u32l(suffix, hp_patch_offset + 1);
suffix.push_back(static_cast<char>((new_hp >> 8) & 0xFF));
append_patch_entry(suffix, hp_patch_offset, new_hp, 2);
patch_entry_count++;
const uint32_t exp_file_offset = row_file_offset + ultimate_exp_row_offset;
@@ -1166,11 +1164,8 @@ static std::vector<std::pair<std::string, std::shared_ptr<AsyncPromise<C_Execute
uint32_t old_exp = read_u32l(vanilla_data, exp_file_offset);
uint32_t new_exp = scale_u32(old_exp, exp_mult);
for (uint32_t x = 0; x < 4; x++) {
append_u32l(suffix, exp_patch_offset + x);
suffix.push_back(static_cast<char>((new_exp >> (x * 8)) & 0xFF));
patch_entry_count++;
}
append_patch_entry(suffix, exp_patch_offset, new_exp, 4);
patch_entry_count++;
}
suffix[12] = static_cast<char>(patch_entry_count & 0xFF);
system/client-functions/PsoPeepsBrutalPeepsPC.s
+22 -10
View File
@@ -48,7 +48,7 @@ next_candidate:
jmp scan_again
found_table:
# esi = BattleParamEntry_on.dat base
# esi = matched Ultimate BattleParam block base
mov ecx, [ebx + 12] # patch entry count
mov edi, [ebx + 8] # signature_size
lea edi, [ebx + edi + 16] # patch entries after header+signature
@@ -57,16 +57,27 @@ patch_again:
test ecx, ecx
jz done
mov edx, [edi] # offset from table base
mov al, [edi + 4] # byte value
mov [esi + edx], al
mov edx, [edi] # offset from matched block base
movzx ebp, byte [edi + 4] # byte count
add edi, 5 # edi = source bytes
add edi, 5
copy_patch_bytes_again:
test ebp, ebp
jz patch_entry_done
mov al, [edi]
mov [esi + edx], al
inc edi
inc edx
dec ebp
jmp copy_patch_bytes_again
patch_entry_done:
dec ecx
jmp patch_again
done:
mov eax, esi # return found table base
mov eax, esi # return found block base
jmp return
not_found:
@@ -82,12 +93,13 @@ return:
get_data_ptr:
call get_data_ptr_ret
# Server suffix starts here:
# Server suffix:
# uint32_t scan_start
# uint32_t scan_end
# uint32_t signature_size
# uint32_t patch_entry_count
# signature bytes from table start
# repeated patch entries:
# signature bytes
# repeated compact patch entries:
# uint32_t offset
# uint8_t value
# uint8_t size
# uint8_t data[size]