add new patch file

This commit is contained in:
Martin Michelsen
2025-10-28 10:00:43 -07:00
parent adf1db92c7
commit 648da83aa1
2 changed files with 99 additions and 63 deletions
@@ -1,63 +0,0 @@
# This patch changes the 6xDD command to support fractional multipliers.
.meta name="Fractional EXP multiplier"
.meta description=""
.meta hide_from_patches_menu
entry_ptr:
reloc0:
.offsetof start
start:
call install_hook
call apply_static_patches
fild st0, dword [0x009F9EE0]
fstp dword [0x009F9EE0], st0
ret
install_hook:
pop ecx
push 7
push 0x0078747E
call get_code_size
.deltaof hook_start, hook_end
get_code_size:
pop eax
push dword [eax]
call hook_end
hook_start: # [eax, ebx]() -> void
push edx
fild st0, dword [esp]
fld st0, dword [0x009F9EE0]
fmulp st1, st0
fistp dword [esp], st0
pop edx
ret
hook_end:
push ecx
.include WriteCallToCode-59NL
apply_static_patches:
.include WriteCodeBlocksBB
.data 0x00787998
.deltaof handle_6xDD_start, handle_6xDD_end
handle_6xDD_start: # [std](G_6xDD* cmd @ [esp + 4]) -> void
mov eax, [esp + 4]
test eax, eax
je handle_6xDD_ret
cmp byte [eax + 1], 1
jg handle_6xDD_use_float
fild st0, word [eax + 2]
jmp handle_6xDD_write_float
handle_6xDD_use_float:
fld st0, dword [eax + 4]
handle_6xDD_write_float:
fstp dword [0x009F9EE0], st0
handle_6xDD_ret:
ret
handle_6xDD_end:
.data 0x00000000
.data 0x00000000
@@ -0,0 +1,99 @@
# This patch causes the client not to generate its own EXP text and instead use
# the EXP values generated by the server when showing the purple text for enemy
# deaths. This makes EXP gained via EXP share visible, as well as makes
# fractional EXP multiplers (in config.json) display properly.
.meta name="Server EXP display"
.meta description=""
.meta hide_from_patches_menu
entry_ptr:
reloc0:
.offsetof start
start:
call install_hook
call apply_static_patches
ret
install_hook:
pop ecx
push 0 # Write address instead of a call/jmp opcode
push 0x00A0FC54
call get_code_size
.deltaof handle_6xBF_start, handle_6xBF_end
get_code_size:
pop eax
push dword [eax]
call handle_6xBF_end
handle_6xBF_start: # [std](G_6xBF* cmd @ [esp + 4]) -> void
mov edx, [esp + 4]
cmp byte [edx + 1], 3
jl skip_text
movzx eax, word [edx + 8] # cmd.from_enemy_id
cmp eax, 0x1000
jl skip_text
cmp eax, 0x1B50
jge skip_text
call get_enemy_entity
test eax, eax
jnz enemy_entity_ok
# Use player entity if enemy entity is already gone
mov ecx, 0x0068D5AC
mov eax, [0x00A9C4F4]
call ecx # eax = TObjPlayer::for_client_id(local_client_id)
enemy_entity_ok:
push 0x0000FFFF # entity_id; ignored by TFontSmallTask if not a player
push dword [edx + 4] # amount = cmd.amount
push 0x009783A0 # prefix = L"EXP"
push 0x14
push 0x14
push 0xFFFF00FF # color (ARGB)
add eax, 0x300
push eax # position
mov eax, 0x0078AABC
call eax # TFontSmallTask___new__(...)
add esp, 0x1C
skip_text:
mov eax, 0x006928C0 # Original handle_6xBF
jmp eax # original_handle_6xBF(cmd)
get_enemy_entity:
.include GetEnemyEntity-59NL
ret
handle_6xBF_end:
push ecx
.include WriteCallToCode-59NL
apply_static_patches:
.include WriteCodeBlocksBB
.data 0x0078749D
.deltaof disable_kill_enemy_callsite_start, disable_kill_enemy_callsite_end
disable_kill_enemy_callsite_start:
nop
nop
nop
nop
nop
disable_kill_enemy_callsite_end:
.data 0x007765A5
.deltaof disable_exp_steal_callsite_start, disable_exp_steal_callsite_end
disable_exp_steal_callsite_start:
add esp, 0x0C # Original function has `ret 0x0C`
nop
nop
disable_exp_steal_callsite_end:
.data 0x00000000
.data 0x00000000