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sfall/sfall/Inventory.cpp
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/*
* sfall
* Copyright (C) 2011 Timeslip
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "main.h"
#include <stdio.h>
#include "Define.h"
#include "FalloutEngine.h"
#include "input.h"
#include "Inventory.h"
#include "LoadGameHook.h"
static DWORD sizeLimitMode;
static DWORD invSizeMaxLimit;
static DWORD reloadWeaponKey = 0;
static DWORD itemFastMoveKey = 0;
static DWORD skipFromContainer = 0;
struct sMessage {
long number;
long flags;
char* audio;
char* message;
};
static const char* MsgSearch(long msgno, DWORD file) {
if(!file) return 0;
sMessage msg = { msgno, 0, 0, 0 };
__asm {
lea edx, msg;
mov eax, file;
call message_search_;
}
return msg.message;
}
DWORD& GetActiveItemMode() {
return ptr_itemButtonItems[(*ptr_itemCurrentItem * 6) + 4];
}
TGameObj* GetActiveItem() {
return (TGameObj*)ptr_itemButtonItems[*ptr_itemCurrentItem * 6];
}
void InventoryKeyPressedHook(DWORD dxKey, bool pressed, DWORD vKey) {
if (pressed && reloadWeaponKey && dxKey == reloadWeaponKey && IsMapLoaded() && (GetLoopFlags() & ~(COMBAT | PCOMBAT)) == 0) {
DWORD maxAmmo, curAmmo;
TGameObj* item = GetActiveItem();
__asm {
mov eax, item;
call item_w_max_ammo_;
mov maxAmmo, eax;
mov eax, item;
call item_w_curr_ammo_;
mov curAmmo, eax;
}
if (maxAmmo != curAmmo) {
DWORD &currentMode = GetActiveItemMode();
DWORD previusMode = currentMode;
currentMode = 5; // reload mode
__asm {
call intface_use_item_;
}
if (previusMode != 5) {
// return to previous active item mode (if it wasn't "reload")
currentMode = previusMode - 1;
if (currentMode < 0)
currentMode = 4;
__asm {
call intface_toggle_item_state_;
}
}
}
}
}
/////////////////////////////////////////////////////////////////
DWORD __stdcall sf_item_total_size(TGameObj* critter) {
int totalSize;
__asm {
mov eax, critter;
call item_c_curr_size_;
mov totalSize, eax;
}
if (((critter->artFid >> 24) & 0x0F) == OBJ_TYPE_CRITTER) {
TGameObj* item = InvenRightHand(critter);
if (item && !(item->flags & 0x2000000)) { // ObjectFlag Right_Hand
totalSize += ItemSize(item);
}
TGameObj* itemL = InvenLeftHand(critter);
if (itemL && item != itemL && !(itemL->flags & 0x1000000)) { // ObjectFlag Left_Hand
totalSize += ItemSize(itemL);
}
item = InvenWorn(critter);
if (item && !(item->flags & 0x4000000)) { // ObjectFlag Worn
totalSize += ItemSize(item);
}
}
return totalSize;
}
static int __stdcall CritterGetMaxSize(TGameObj* critter) {
if (critter == *ptr_obj_dude) return invSizeMaxLimit;
if (sizeLimitMode != 3) { // selected mode 1 or 2
if (!(sizeLimitMode & 2) || !(IsPartyMember(critter))) return 0; // if mode 2 is selected, check this party member, otherwise 0
}
int statSize = 0;
char* proto = GetProtoPtr(critter->pid);
if (proto != nullptr) {
statSize = *(int*)(proto + 76) + *(int*)(proto + 216); // The unused stat in the base + extra block
}
return (statSize > 0) ? statSize : 100; // 100 - default value, for all critters if not set stats
}
static __declspec(naked) void critterIsOverloaded_hack() {
__asm {
and eax, 0xFF;
jnz end;
push ecx;
push ebx; // critter
call CritterGetMaxSize;
test eax, eax;
jz skip;
push ebx;
mov ebx, eax; // ebx = MaxSize
call sf_item_total_size;
cmp eax, ebx;
setg al; // if CurrSize > MaxSize
and eax, 0xFF;
skip:
pop ecx;
end:
retn;
}
}
static int __fastcall CanAddedItems(TGameObj* critter, TGameObj* item, int count) {
int sizeMax = CritterGetMaxSize(critter);
if (sizeMax > 0) {
int itemsSize = ItemSize(item) * count;
if (itemsSize + (int)sf_item_total_size(critter) > sizeMax) return -6; // TODO: Switch this to a lower number, and add custom error messages.
}
return 0;
}
static const DWORD ItemAddMultRet = 0x4772A6;
static const DWORD ItemAddMultFail = 0x4771C7;
static __declspec(naked) void item_add_mult_hack() {
__asm {
push ecx;
push ebx; // items count
mov edx, esi; // item
call CanAddedItems; // ecx - source;
pop ecx;
test eax, eax;
jnz fail;
jmp ItemAddMultRet;
fail:
jmp ItemAddMultFail;
}
}
static __declspec(naked) void item_add_mult_hack_container() {
__asm {
/* cmp eax, edi */
mov eax, -6;
jl fail;
//-------
push ecx;
push ebx; // items count
mov edx, esi; // item
call CanAddedItems; // ecx - source;
pop ecx;
test eax, eax;
jnz fail;
jmp ItemAddMultRet;
fail:
jmp ItemAddMultFail;
}
}
static int __fastcall BarterAttemptTransaction(TGameObj* critter, TGameObj* table) {
int size = CritterGetMaxSize(critter);
if (size == 0) return 1;
int sizeTable = sf_item_total_size(table);
if (sizeTable == 0) return 1;
size -= sf_item_total_size(critter);
return (sizeTable <= size) ? 1 : 0;
}
static const DWORD BarterAttemptTransactionPCFail = 0x474C81;
static const DWORD BarterAttemptTransactionPCRet = 0x474CA8;
static __declspec(naked) void barter_attempt_transaction_hack_pc() {
__asm {
/* cmp eax, edx */
jg fail; // if there's no available weight
//------
mov ecx, edi; // source (pc)
mov edx, ebp; // npc table
call BarterAttemptTransaction;
test eax, eax;
jz fail;
jmp BarterAttemptTransactionPCRet;
fail:
mov esi, 31;
jmp BarterAttemptTransactionPCFail;
}
}
static const DWORD BarterAttemptTransactionPMFail = 0x474CD8;
static const DWORD BarterAttemptTransactionPMRet = 0x474D01;
static __declspec(naked) void barter_attempt_transaction_hack_pm() {
__asm {
/* cmp eax, edx */
jg fail; // if there's no available weight
//------
mov ecx, ebx; // target (npc)
mov edx, esi; // pc table
call BarterAttemptTransaction;
test eax, eax;
jz fail;
jmp BarterAttemptTransactionPMRet;
fail:
mov ecx, 32;
jmp BarterAttemptTransactionPMFail;
}
}
static __declspec(naked) void loot_container_hook_btn() {
__asm {
push ecx;
push edx; // source current weight
mov edx, eax; // target
mov ecx, [esp + 0x150 - 0x1C + 12]; // source
call BarterAttemptTransaction;
pop edx;
pop ecx;
test eax, eax;
jz fail;
mov eax, ebp; // target
jmp item_total_weight_;
fail:
mov eax, edx;
inc eax; // weight + 1
retn;
}
}
static char InvenFmt[32];
static const char* InvenFmt1 = "%s %d/%d %s %d/%d";
static const char* InvenFmt2 = "%s %d/%d";
static const char* InvenFmt3 = "%d/%d | %d/%d";
static void __cdecl DisplaySizeStats(TGameObj* critter, const char* &message, DWORD &size, DWORD &sizeMax) {
int limitMax = CritterGetMaxSize(critter);
if (limitMax == 0) {
strcpy(InvenFmt, InvenFmt2); // default fmt
return;
}
sizeMax = limitMax;
size = sf_item_total_size(critter);
const char* msg = MsgSearch(35, _inventry_message_file);
message = (msg != nullptr) ? msg : "";
strcpy(InvenFmt, InvenFmt1);
}
static const DWORD DisplayStatsRet = 0x4725E5;
static __declspec(naked) void display_stats_hack() {
__asm {
mov ecx, esp;
sub ecx, 4;
push ecx; // sizeMax
sub ecx, 4;
push ecx; // size
sub ecx, 4;
push ecx; // size message
push eax; // critter
call DisplaySizeStats;
pop eax;
mov edx, STAT_carry_amt;
jmp DisplayStatsRet;
}
}
static char SizeMsgBuf[32];
static const char* _stdcall SizeInfoMessage(TGameObj* item) {
int size = ItemSize(item);
if (size == 1) {
const char* message = MsgSearch(543, _proto_main_msg_file);
if (message == nullptr)
strncpy_s(SizeMsgBuf, "It occupies 1 unit.", _TRUNCATE);
else
_snprintf_s(SizeMsgBuf, _TRUNCATE, message, size);
} else {
const char* message = MsgSearch(542, _proto_main_msg_file);
if (message == nullptr)
_snprintf_s(SizeMsgBuf, _TRUNCATE, "It occupies %d units.", size);
else
_snprintf_s(SizeMsgBuf, _TRUNCATE, message, size);
}
return SizeMsgBuf;
}
static __declspec(naked) void inven_obj_examine_func_hook() {
__asm {
call inven_display_msg_;
push edx;
push ecx;
push esi;
call SizeInfoMessage;
pop ecx;
pop edx;
jmp inven_display_msg_;
}
}
static const DWORD ControlUpdateInfoRet = 0x44912A;
static void __declspec(naked) gdControlUpdateInfo_hack() {
__asm {
mov ebx, eax;
push eax; // critter
call CritterGetMaxSize;
push eax; // sizeMax
push ebx;
call sf_item_total_size;
push eax; // size
mov eax, ebx;
mov edx, STAT_carry_amt;
jmp ControlUpdateInfoRet;
}
}
/////////////////////////////////////////////////////////////////
static char SuperStimMsg[128];
static int __fastcall SuperStimFix(TGameObj* item, TGameObj* target) {
if (item->pid != PID_SUPER_STIMPAK || !target || (target->pid & 0xFF000000) != (OBJ_TYPE_CRITTER << 24)) { // 0x01000000
return 0;
}
long curr_hp = StatLevel(target, STAT_current_hp);
long max_hp = StatLevel(target, STAT_max_hit_points);
if (curr_hp < max_hp) return 0;
DisplayConsoleMessage(SuperStimMsg);
return -1;
}
static const DWORD protinst_use_item_on_Ret = 0x49C5F4;
static void __declspec(naked) protinst_use_item_on_hack() {
__asm {
push ecx;
mov ecx, ebx; // ecx - item
call SuperStimFix; // edx - target
pop ecx;
test eax, eax;
jnz end;
mov ebp, -1; // overwritten engine code
retn;
end:
add esp, 4; // destroy ret
jmp protinst_use_item_on_Ret; // exit
}
}
static void __declspec(naked) SetDefaultAmmo() {
__asm {
push ecx;
mov ecx, edx; // ecx = item
mov eax, edx;
call item_get_type_;
cmp eax, item_type_weapon; // is it item_type_weapon?
jne end; // no
cmp dword ptr [ecx + 0x3C], 0; // is there any ammo in the weapon?
jne end; // yes
sub esp, 4;
mov edx, esp;
mov eax, [ecx + 0x64]; // eax = weapon pid
call proto_ptr_;
mov edx, [esp];
mov eax, [edx + 0x5C]; // eax = default ammo pid
mov [ecx + 0x40], eax; // set current ammo proto
add esp, 4;
end:
pop ecx;
retn;
}
}
static void __declspec(naked) inven_action_cursor_hack() {
__asm {
mov edx, [esp + 0x6C - 0x50 + 4]; // source_item
call SetDefaultAmmo;
cmp dword ptr [esp + 0x6C - 0x54 + 4], 0; // overwritten engine code
retn;
}
}
static void __declspec(naked) item_add_mult_hook() {
__asm {
push edx;
call SetDefaultAmmo;
pop edx;
mov eax, ecx; // restore
jmp item_add_force_;
}
}
static void __declspec(naked) inven_pickup_hack() {
__asm {
mov eax, ds:[_i_wid];
call GNW_find_;
mov ebx, [eax + 8 + 0]; // ebx = _i_wid.rect.x
mov ecx, [eax + 8 + 4]; // ecx = _i_wid.rect.y
lea eax, [ebx + 176]; // x_start
add ebx, 176 + 60; // x_end
lea edx, [ecx + 37]; // y_start
add ecx, 37 + 100; // y_end
retn;
}
}
static void __declspec(naked) loot_container_hack_scroll() {
__asm {
cmp esi, 0x150; // source_down
je scroll;
cmp esi, 0x148; // source_up
jne end;
scroll:
mov eax, ds:[_i_wid];
call GNW_find_;
push edx;
push ecx;
push ebx;
mov ebx, [eax + 8 + 0]; // ebx = _i_wid.rect.x
mov ecx, [eax + 8 + 4]; // ecx = _i_wid.rect.y
lea eax, [ebx + 297]; // x_start
add ebx, 297 + 64; // x_end
lea edx, [ecx + 37]; // y_start
add ecx, 37 + 6 * 48; // y_end
call mouse_click_in_;
pop ebx;
pop ecx;
pop edx;
test eax, eax;
jz end;
cmp esi, 0x150; // source_down
je targetDown;
mov esi, 0x18D; // target_up
jmp end;
targetDown:
mov esi, 0x191; // target_down
end:
mov eax, ds:[_curr_stack];
retn;
}
}
static void __declspec(naked) barter_inventory_hack_scroll() {
__asm {
mov esi, eax;
cmp esi, 0x150; // source_down
je scroll;
cmp esi, 0x148; // source_up
jne skip;
scroll:
mov eax, ds:[_i_wid];
call GNW_find_;
push edx;
push ecx;
push ebx;
push ebp;
push edi;
mov ebp, [eax + 8 + 0];
mov edi, [eax + 8 + 4];
mov ebx, ebp; // ebx = _i_wid.rect.x
mov ecx, edi; // ecx = _i_wid.rect.y
lea eax, [ebp + 395]; // x_start
add ebx, 395 + 64; // x_end
lea edx, [edi + 35]; // y_start
add ecx, 35 + 3 * 48; // y_end
call mouse_click_in_;
test eax, eax;
jz notTargetScroll;
cmp esi, 0x150; // source_down
je targetDown;
mov esi, 0x18D; // target_up
jmp end;
targetDown:
mov esi, 0x191; // target_down
jmp end;
notTargetScroll:
mov ebx, ebp;
mov ecx, edi;
lea eax, [ebp + 250]; // x_start
add ebx, 250 + 64; // x_end
lea edx, [edi + 20]; // y_start
add ecx, 20 + 3 * 48; // y_end
call mouse_click_in_;
test eax, eax;
jz notTargetBarter;
cmp esi, 0x150; // source_down
je barterTargetDown;
mov esi, 0x184; // target_barter_up
jmp end;
barterTargetDown:
mov esi, 0x176; // target_barter_down
jmp end;
notTargetBarter:
mov ebx, ebp;
mov ecx, edi;
lea eax, [ebp + 165]; // x_start
add ebx, 165 + 64; // x_end
lea edx, [edi + 20]; // y_start
add ecx, 20 + 3 * 48; // y_end
call mouse_click_in_;
test eax, eax;
jz end;
cmp esi, 0x150; // source_down
je barterSourceDown;
mov esi, 0x149; // source_barter_up
jmp end;
barterSourceDown:
mov esi, 0x151; // source_barter_down
end:
pop edi;
pop ebp;
pop ebx;
pop ecx;
pop edx;
mov eax, esi;
skip:
cmp eax, 0x11;
retn;
}
}
static void __declspec(naked) op_inven_unwield_hook() {
__asm {
mov ecx, [eax + 0x64];
and ecx, 0x0F000000;
cmp ecx, OBJ_TYPE_CRITTER << 24;
jne skip;
test byte ptr [eax + 0x44], DAM_KNOCKED_OUT;
jz skip;
push 0x505AFC; // "But is already Inactive (Dead/Stunned/Invisible)"
call debug_printf_;
add esp, 4;
end:
retn;
skip:
call inven_unwield_;
// update interface slot
cmp ebx, ds:[_obj_dude];
jne end;
xor eax, eax; // no animate
mov ebx, eax;
dec ebx; // modeRight (-1)
mov edx, ebx; // modeLeft (-1)
jmp intface_update_items_;
}
}
static void __declspec(naked) op_wield_obj_critter_hook() {
__asm {
test byte ptr [eax + 0x44], DAM_KNOCKED_OUT;
jz skip;
mov eax, -1;
retn;
skip:
jmp inven_wield_;
}
}
static const DWORD DoMoveTimer_Ret = 0x476920;
static void __declspec(naked) do_move_timer_hook() {
__asm {
cmp eax, 4;
jnz end;
pushadc;
}
KeyDown(itemFastMoveKey); // check pressed
__asm {
cmp skipFromContainer, 0;
jz noSkip;
cmp dword ptr [esp + 0x14 + 16], 0x474A43;
jnz noSkip;
test eax, eax;
setz al;
noSkip:
test eax, eax; // set if pressed
popadc;
jz end;
add esp, 4; // destroy ret
jmp DoMoveTimer_Ret;
end:
jmp setup_move_timer_win_;
}
}
static void __declspec(naked) do_move_timer_hack() {
__asm {
mov ebx, 1;
call GetLoopFlags;
test eax, BARTER;
cmovz ebx, ebp; // set max when not in barter
retn;
}
}
static int invenApCost, invenApCostDef;
static char invenApQPReduction;
static const DWORD inven_ap_cost_Ret = 0x46E812;
static void __declspec(naked) inven_ap_cost_hack() {
_asm {
mul byte ptr invenApQPReduction;
mov edx, invenApCost;
jmp inven_ap_cost_Ret;
}
}
static bool onlyOnceAP = false;
inline static void ApplyInvenApCostPatch() {
MakeJump(0x46E80B, inven_ap_cost_hack);
onlyOnceAP = true;
}
void _stdcall SetInvenApCost(int cost) {
invenApCost = cost;
if (!onlyOnceAP) ApplyInvenApCostPatch();
}
// TODO: Make GetInvenApCost() function
/*long GetInvenApCost() {
long plevel = PerkLevel(*ptr_obj_dude, PERK_quick_pockets);
return invenApCost - (invenApQPReduction * plevel);
}*/
void InventoryReset() {
invenApCost = invenApCostDef;
}
void InventoryInit() {
sizeLimitMode = GetConfigInt("Misc", "CritterInvSizeLimitMode", 0);
if (sizeLimitMode > 0 && sizeLimitMode <= 7) {
if (sizeLimitMode >= 4) {
sizeLimitMode -= 4;
// item_total_weight_ patch
SafeWrite8(0x477EB3, 0xEB);
SafeWrite8(0x477EF5, 0);
SafeWrite8(0x477F11, 0);
SafeWrite8(0x477F29, 0);
}
invSizeMaxLimit = GetConfigInt("Misc", "CritterInvSizeLimit", 100);
// Check item_add_multi (picking stuff from the floor, etc.)
HookCall(0x4771BD, item_add_mult_hack); // jle addr
SafeWrite16(0x47726F, 0x9090);
MakeJump(0x477271, item_add_mult_hack_container);
MakeCall(0x42E688, critterIsOverloaded_hack);
// Check player's capacity when bartering
SafeWrite16(0x474C7A, 0x9090);
MakeJump(0x474C7C, barter_attempt_transaction_hack_pc);
// Check player's capacity when using "Take All" button
HookCall(0x47410B, loot_container_hook_btn);
// Display total weight/size on the inventory screen
MakeJump(0x4725E0, display_stats_hack);
SafeWrite32(0x4725FF, (DWORD)&InvenFmt);
SafeWrite8(0x47260F, 0x20);
SafeWrite32(0x4725F9, 0x9C + 0x0C);
SafeWrite8(0x472606, 0x10 + 0x0C);
SafeWrite32(0x472632, 150); // width
SafeWrite8(0x472638, 0); // x offset position
// Display item size when examining
HookCall(0x472FFE, inven_obj_examine_func_hook);
if (sizeLimitMode > 1) {
// Check party member's capacity when bartering
SafeWrite16(0x474CD1, 0x9090);
MakeJump(0x474CD3, barter_attempt_transaction_hack_pm);
// Display party member's current/max inventory size on the combat control panel
MakeJump(0x449125, gdControlUpdateInfo_hack);
SafeWrite32(0x44913E, (DWORD)InvenFmt3);
SafeWrite8(0x449145, 0x0C + 0x08);
SafeWrite8(0x449150, 0x10 + 0x08);
}
}
if (GetConfigInt("Misc", "SuperStimExploitFix", 0)) {
Translate("sfall", "SuperStimExploitMsg", "You cannot use a super stim on someone who is not injured!", SuperStimMsg);
MakeCall(0x49C3D9, protinst_use_item_on_hack);
}
reloadWeaponKey = GetConfigInt("Input", "ReloadWeaponKey", 0);
invenApCost = invenApCostDef = GetConfigInt("Misc", "InventoryApCost", 4);
invenApQPReduction = GetConfigInt("Misc", "QuickPocketsApCostReduction", 2);
if (invenApCostDef != 4 || invenApQPReduction != 2) {
ApplyInvenApCostPatch();
}
if (GetConfigInt("Misc", "StackEmptyWeapons", 0)) {
MakeCall(0x4736C6, inven_action_cursor_hack);
HookCall(0x4772AA, item_add_mult_hook);
}
// Do not call the 'Move Items' window when using drag and drop to reload weapons in the inventory
int ReloadReserve = GetConfigInt("Misc", "ReloadReserve", -1);
if (ReloadReserve >= 0) {
SafeWrite32(0x47655F, ReloadReserve); // mov eax, ReloadReserve
SafeWrite32(0x476563, 0x097EC139); // cmp ecx, eax; jle 0x476570
SafeWrite16(0x476567, 0xC129); // sub ecx, eax
SafeWrite8(0x476569, 0x91); // xchg ecx, eax
};
itemFastMoveKey = GetConfigInt("Input", "ItemFastMoveKey", DIK_LCONTROL);
if (itemFastMoveKey > 0) {
HookCall(0x476897, do_move_timer_hook);
// Do not call the 'Move Items' window when taking items from containers or corpses
skipFromContainer = GetConfigInt("Input", "FastMoveFromContainer", 0);
}
if (GetConfigInt("Misc", "ItemCounterDefaultMax", 0)) {
MakeCall(0x4768A3, do_move_timer_hack);
}
// Move items from bag/backpack to the main inventory list by dragging them on the character portrait (similar to Fallout 1 behavior)
MakeCall(0x471452, inven_pickup_hack);
// Move items to player's main inventory instead of the opened bag/backpack when confirming a trade
SafeWrite32(0x475CF2, _stack);
// Enable mouse scroll control in barter and loot screens when the cursor is hovering over other lists
if (UseScrollWheel) {
MakeCall(0x473E66, loot_container_hack_scroll);
MakeCall(0x4759F1, barter_inventory_hack_scroll);
*ptr_max = 100;
};
// Check the DAM_KNOCKED_OUT flag for wield_obj_critter/inven_unwield script functions
// Note: the flag is not checked for the metarule(METARULE_INVEN_UNWIELD_WHO, x) function
HookCall(0x45B0CE, op_inven_unwield_hook); // with fix to update interface slot after unwielding
HookCall(0x45693C, op_wield_obj_critter_hook);
}
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