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Prototype for acessing arrays from code.

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This commit is contained in:
JezuzLizard 2023-05-01 12:29:43 -07:00
parent 879fed10df
commit bffd8f65b3
5 changed files with 214 additions and 3 deletions
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18
src/component/test.cpp
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@ -2,6 +2,7 @@
#include "loader/component_loader.hpp"
#include "scheduler.hpp"
#include "gsc.hpp"
#include <utils/io.hpp>
#include <utils/hook.hpp>
@ -186,6 +187,23 @@ namespace test
//printf("Biggie Spam McCheese\n");
});
gsc::function::add("getarraytest", []()
{
auto parent_id = game::Scr_GetObject(0, game::SCRIPTINSTANCE_SERVER).pointerValue;
auto script_array_size = GetArraySize(game::SCRIPTINSTANCE_SERVER, parent_id);
for (auto i = 0u; i < script_array_size; ++i)
{
auto id = game::GetArrayVariable(game::SCRIPTINSTANCE_SERVER, parent_id, i);
auto entry_value = &game::gScrVarGlob[0].childVariables[id];
if ((entry_value->w.type & 0x1F) != game::VAR_STRING)
{
game::Scr_Error(utils::string::va("index %d in array is not a string", i), game::SCRIPTINSTANCE_SERVER, false);
}
printf("%s\n", game::SL_ConvertToString(game::SCRIPTINSTANCE_SERVER, entry_value->u.u.stringValue));
}
});
gscr_spawn_hook.create(0x517630, gscr_spawn_stub);
//Disable AI print spam

51
src/game/game.cpp
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@ -3,6 +3,7 @@
#include <utils/hook.hpp>
#include <utils/memory.hpp>
#include <utils/string.hpp>
namespace game
{
@ -460,6 +461,23 @@ namespace game
}
}
unsigned int GetArrayVariableIndex(unsigned int unsignedValue, scriptInstance_t inst, unsigned int parentId, void* call_addr)
{
unsigned int answer;
__asm
{
push parentId;
push inst;
mov eax, unsignedValue;
call call_addr;
mov answer, eax;
add esp, 0x8;
}
return answer;
}
unsigned int Scr_GetNumParam(scriptInstance_t inst)
{
return gScrVmPub[inst].outparamcount;
@ -786,6 +804,39 @@ namespace game
return dist;
}
VariableUnion Scr_GetObject(unsigned int index, scriptInstance_t inst)
{
const char* v3; // eax
const char* v4; // eax
VariableValue* value; // [esp+0h] [ebp-4h]
if (index < gScrVmPub[inst].outparamcount)
{
value = &gScrVmPub[inst].top[-index];
if (value->type == VAR_BEGIN_REF)
return value->u;
gScrVarPub[inst].error_index = index + 1;
v3 = utils::string::va("type %s is not an object", var_typename[value->type]);
Scr_Error(v3, inst, 0);
}
v4 = utils::string::va("parameter %d does not exist", index + 1);
Scr_Error(v4, inst, 0);
return value->u;
}
unsigned int GetArraySize(scriptInstance_t inst, unsigned int id)
{
VariableValueInternal* entryValue; // [esp+0h] [ebp-4h]
entryValue = &gScrVarGlob[inst].parentVariables[id + 1];
return entryValue->u.o.u.size;
}
unsigned int GetArrayVariable(scriptInstance_t inst, unsigned int parentId, unsigned int unsignedValue)
{
return gScrVarGlob[inst].childVariables[GetArrayVariableIndex(unsignedValue, inst, parentId)].hash.id;
}
void Sentient_GetVelocity(sentient_s* self, float* vVelOut)
{
static const auto call_addr = SELECT(0x0, 0x5662A0);

6
src/game/game.hpp
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@ -68,6 +68,9 @@ namespace game
__inline void* Scr_NotifyNum() { return CALL_ADDR(0x0, 0x698CC0); }
void Scr_NotifyNum(scriptInstance_t inst, int entNum, int entClass, unsigned int notifStr, int numParams, void* call_addr = Scr_NotifyNum());
__inline void* GetArrayVariableIndex() { return CALL_ADDR(0x0, 0x6902A0); }
unsigned int GetArrayVariableIndex(unsigned int unsignedValue, scriptInstance_t inst, unsigned int parentId, void* call_addr = GetArrayVariableIndex());
unsigned int Scr_GetNumParam(scriptInstance_t inst);
VariableType Scr_GetType(scriptInstance_t inst, unsigned int index);
void Scr_Error(const char* err, scriptInstance_t inst, bool is_terminal);
@ -93,6 +96,9 @@ namespace game
float Path_GetPathDir(float* delta, const float* vFrom, const float* vTo);
float Vec3DistanceSq(const float* p1, const float* p2);
float EvaluateHeuristic(CustomSearchInfo_FindPath* searchInfo, pathnode_t* pSuccessor, const float* vGoalPos);
VariableUnion Scr_GetObject(unsigned int index, scriptInstance_t inst);
unsigned int GetArraySize(scriptInstance_t inst, unsigned int id);
unsigned int GetArrayVariable(scriptInstance_t inst, unsigned int parentId, unsigned int unsignedValue);
void Sentient_GetVelocity(sentient_s* self, float* vVelOut);

137
src/game/structs.hpp
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@ -2122,6 +2122,18 @@ namespace game
VAR_TOTAL_COUNT = 0x1B,
};
/* 977 */
struct VariableStackBuffer
{
char* pos;
unsigned __int16 size;
unsigned __int16 bufLen;
unsigned __int16 localId;
unsigned __int8 time;
char buf[1];
};
/* 234 */
union VariableUnion
{
int intValue;
@ -2130,7 +2142,7 @@ namespace game
const float* vectorValue;
const char* codePosValue;
unsigned int pointerValue;
char* stackValue;
VariableStackBuffer* stackValue;
unsigned int entityOffset;
};
@ -2172,6 +2184,129 @@ namespace game
VariableValue stack[2048];
};
/* 1143 */
union Variable_u
{
unsigned __int16 prev;
unsigned __int16 prevSibling;
};
/* 1144 */
struct Variable
{
unsigned __int16 id;
Variable_u u;
};
/* 1145 */
union ObjectInfo_u
{
unsigned __int16 entnum;
unsigned __int16 size;
unsigned __int16 nextEntId;
unsigned __int16 self;
};
/* 1146 */
struct ObjectInfo
{
unsigned __int16 refCount;
ObjectInfo_u u;
};
/* 1147 */
union VariableValueInternal_u
{
unsigned int next;
VariableUnion u;
ObjectInfo o;
};
/* 1148 */
union VariableValueInternal_w
{
unsigned int status;
unsigned int type;
unsigned int name;
unsigned int classnum;
unsigned int notifyName;
unsigned int waitTime;
unsigned int parentLocalId;
};
/* 1149 */
union VariableValueInternal_v
{
unsigned __int16 next;
unsigned __int16 index;
};
/* 240 */
struct VariableValueInternal
{
Variable hash;
VariableValueInternal_u u;
VariableValueInternal_w w;
VariableValueInternal_v v;
unsigned __int16 nextSibling;
};
/* 241 */
struct __declspec(align(4)) scrVarGlob_t
{
VariableValueInternal parentVariables[24576];
VariableValueInternal childVariables[65536];
};
/* 986 */
struct __declspec(align(4)) HunkUser
{
HunkUser* current;
HunkUser* next;
int maxSize;
int end;
int pos;
int locked;
char* name;
bool fixed;
bool tempMem;
bool debugMem;
int type;
unsigned __int8 buf[1];
};
/* 222 */
struct __declspec(align(4)) scrVarPub_t
{
char* fieldBuffer;
unsigned __int16 canonicalStrCount;
bool developer;
bool developer_script;
bool evaluate;
char* error_message;
int error_index;
unsigned int time;
unsigned int timeArrayId;
unsigned int pauseArrayId;
unsigned int levelId;
unsigned int gameId;
unsigned int animId;
unsigned int freeEntList;
unsigned int tempVariable;
bool bInited;
unsigned __int16 savecount;
unsigned int checksum;
unsigned int entId;
unsigned int entFieldName;
HunkUser* programHunkUser;
char* programBuffer;
char* endScriptBuffer;
__int16 saveIdMap;
__int16 saveIdMapRev;
char field_54[98291];
char field_18047;
};
struct __declspec(align(2)) scr_const_t
{
unsigned __int16 _;

5
src/game/symbols.hpp
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@ -22,15 +22,16 @@ namespace game
WEAK symbol<pathlocal_t> g_path{ 0x0, 0x1F2F700 };
WEAK symbol<gentity_s> g_entities{ 0x0, 0x176C6F0 };
WEAK symbol<game_hudelem_s> g_hudelems{ 0x0, 0x173C6F0 };
//WEAK symbol<scrVarPub_t> scrVarPub{ 0x0, 0x3882B70 };
WEAK symbol<scrVarPub_t> gScrVarPub{ 0x0, 0x3882B70 };
WEAK symbol<scrVmPub_t> gScrVmPub{ 0x0, 0x3BD4700 };
WEAK symbol<level_locals_s> level{ 0x0, 0x18F5D88 };
WEAK symbol<float*> g_pathAttemptGoalPos{ 0x0, 0x16CFD6C };
//WEAK symbol<scrParserPub_t> scrParserPub{ 0x0, 0x3882B00 };
//WEAK symbol<scrVarGlob_t> gScrVarGlob{ 0x0, 0x3914700 };
WEAK symbol<scrVarGlob_t> gScrVarGlob{ 0x0, 0x3914700 };
WEAK symbol<function_stack_t> function_stack{ 0x0, 0x3BDDDD0 };
WEAK symbol<scr_const_t> scr_const{0x0, 0x1F33B90};
WEAK symbol<char*> var_typename{ 0x0, 0x8CF4B0 };
WEAK symbol<WeaponDef*> BG_WeaponNames{ 0x0, 0x8F6770 };