remake - v2

src/detour.cpp

@@ -36,6 +36,7 @@ static uint64_t g_packChanged = 0;
 static uint64_t g_packEntityCalls = 0;
 static uint64_t g_packEntitySpoofs = 0;
 static uint64_t g_packEntityScopedWrites = 0;
+static uint64_t g_packEntityGenericSpoofs = 0;
 static uint64_t g_packEntitySelfSkips = 0;
 static uint64_t g_packEntityNoRecipient = 0;
 static uint64_t g_fullUpdateWrites = 0;
@@ -162,51 +163,51 @@ static void Detour_PackEntity(void* self, void* arg1, int entityIndex, void* ent
 {
 	++g_packEntityCalls;
 
-	if (!g_enabled || !g_armed || !entityData)
+	if (!g_enabled || !g_armed || !entityData || !g_overrides.HasPackedOverrides())
-	{
-		g_packEntity(self, arg1, entityIndex, entityData, arg4, arg5, arg6, arg7, arg8, arg9);
-		return;
-	}
-
-	CEntityIdentity* identity = PlayerIdentityFromInstance(entityData);
-	if (!identity)
 	{
 		g_packEntity(self, arg1, entityIndex, entityData, arg4, arg5, arg6, arg7, arg8, arg9);
 		return;
 	}
 
 	CPlayerSlot recipient = g_currentRecipient;
-	int spoofHealth = 42;
+	auto applied = g_overrides.ApplyForPackedEntity(recipient, entityIndex, entityData);
-	if (!g_overrides.TryGetHealth42Value(recipient, spoofHealth))
+	g_packEntityGenericSpoofs += applied.size();
-	{
-		g_packEntity(self, arg1, entityIndex, entityData, arg4, arg5, arg6, arg7, arg8, arg9);
-		return;
-	}
 
+	bool spoofedHealth = false;
+	int savedHealth = 0;
+	int* healthAddress = nullptr;
+	int spoofHealth = 42;
+	if (g_overrides.TryGetHealth42Value(recipient, spoofHealth))
+	{
+		CEntityIdentity* identity = PlayerIdentityFromInstance(entityData);
+		if (identity)
+		{
 			if (recipient.Get() < 0)
 				++g_packEntityNoRecipient;
 			else if (OwnerSlotForPawn(identity) == recipient.Get())
 			{
 				++g_packEntitySelfSkips;
-		g_packEntity(self, arg1, entityIndex, entityData, arg4, arg5, arg6, arg7, arg8, arg9);
-		return;
 			}
-
+			else
-	auto healthField = schema::FindField("CBaseEntity", "m_iHealth");
-	if (!healthField.found || healthField.offset < 0)
 			{
-		g_packEntity(self, arg1, entityIndex, entityData, arg4, arg5, arg6, arg7, arg8, arg9);
+				auto healthField = schema::FindField("CBaseEntity", "m_iHealth");
-		return;
+				if (healthField.found && healthField.offset >= 0)
-	}
+				{
-
+					healthAddress = reinterpret_cast<int*>(reinterpret_cast<uint8_t*>(entityData) + healthField.offset);
-	auto* healthAddress = reinterpret_cast<int*>(reinterpret_cast<uint8_t*>(entityData) + healthField.offset);
+					savedHealth = *healthAddress;
-	int savedHealth = *healthAddress;
 					*healthAddress = spoofHealth;
-
+					spoofedHealth = true;
 					++g_packEntitySpoofs;
 					++g_packEntityScopedWrites;
+				}
+			}
+		}
+	}
+
 	g_packEntity(self, arg1, entityIndex, entityData, arg4, arg5, arg6, arg7, arg8, arg9);
+	if (spoofedHealth)
 		*healthAddress = savedHealth;
+	g_overrides.Restore(applied);
 }
 
 static bool InitPackEntityDetour(CGameConfig* config)
@@ -303,7 +304,7 @@ void ShutdownSnapshotDetour()
 
 void DumpDetourStats()
 {
-	SPMessage("hooks: snapshot calls=%llu applied=%llu changed=%llu; pack calls=%llu applied=%llu changed=%llu; pack_entity calls=%llu spoofs=%llu scoped_writes=%llu self_skips=%llu no_recipient=%llu; fullupdate writes=%llu budget=%d\n",
+	SPMessage("hooks: snapshot calls=%llu applied=%llu changed=%llu; pack calls=%llu applied=%llu changed=%llu; pack_entity calls=%llu health_spoofs=%llu generic_spoofs=%llu scoped_writes=%llu self_skips=%llu no_recipient=%llu; fullupdate writes=%llu budget=%d\n",
 		static_cast<unsigned long long>(g_snapshotCalls),
 		static_cast<unsigned long long>(g_snapshotApplied),
 		static_cast<unsigned long long>(g_snapshotChanged),
@@ -312,6 +313,7 @@ void DumpDetourStats()
 		static_cast<unsigned long long>(g_packChanged),
 		static_cast<unsigned long long>(g_packEntityCalls),
 		static_cast<unsigned long long>(g_packEntitySpoofs),
+		static_cast<unsigned long long>(g_packEntityGenericSpoofs),
 		static_cast<unsigned long long>(g_packEntityScopedWrites),
 		static_cast<unsigned long long>(g_packEntitySelfSkips),
 		static_cast<unsigned long long>(g_packEntityNoRecipient),

src/overrides.cpp

@@ -8,6 +8,7 @@
 
 #include <cstdlib>
 #include <cstring>
+#include <sstream>
 
 extern CGameEntitySystem* g_entitySystem;
 extern CGameEntitySystem* GameEntitySystem();
@@ -26,6 +27,10 @@ static bool ParseType(const char* s, FieldType& out)
 	if (!V_stricmp(s, "int64")) { out = FieldType::Int64; return true; }
 	if (!V_stricmp(s, "uint64")) { out = FieldType::UInt64; return true; }
 	if (!V_stricmp(s, "float")) { out = FieldType::Float; return true; }
+	if (!V_stricmp(s, "handle") || !V_stricmp(s, "ehandle")) { out = FieldType::UInt32; return true; }
+	if (!V_stricmp(s, "color") || !V_stricmp(s, "rgba")) { out = FieldType::Bytes; return true; }
+	if (!V_stricmp(s, "bytes") || !V_stricmp(s, "raw")) { out = FieldType::Bytes; return true; }
+	if (!V_stricmp(s, "string") || !V_stricmp(s, "charptr")) { out = FieldType::StringPtr; return true; }
 	return false;
 }
 
@@ -61,6 +66,9 @@ static uint64_t ReadBits(uint8_t* address, FieldType type)
 			memcpy(&bits, address, sizeof(bits));
 			return bits;
 		}
+		case FieldType::Bytes:
+		case FieldType::StringPtr:
+			return 0;
 	}
 	return 0;
 }
@@ -83,6 +91,9 @@ static void WriteBits(uint8_t* address, FieldType type, uint64_t bits)
 			memcpy(address, &narrowed, sizeof(narrowed));
 			break;
 		}
+		case FieldType::Bytes:
+		case FieldType::StringPtr:
+			break;
 	}
 }
 
@@ -100,10 +111,87 @@ static const char* TypeName(FieldType type)
 		case FieldType::Int64: return "int64";
 		case FieldType::UInt64: return "uint64";
 		case FieldType::Float: return "float";
+		case FieldType::Bytes: return "bytes";
+		case FieldType::StringPtr: return "string";
 	}
 	return "unknown";
 }
 
+static std::vector<std::string> SplitString(const char* value, char separator)
+{
+	std::vector<std::string> out;
+	if (!value)
+		return out;
+
+	const char* start = value;
+	for (const char* p = value; ; ++p)
+	{
+		if (*p != separator && *p != '\0')
+			continue;
+		out.emplace_back(start, p - start);
+		if (*p == '\0')
+			break;
+		start = p + 1;
+	}
+	return out;
+}
+
+static bool ParseByteToken(const std::string& token, uint8_t& out)
+{
+	char* end = nullptr;
+	unsigned long value = strtoul(token.c_str(), &end, 0);
+	if (!end || *end || value > 0xFF)
+		return false;
+	out = static_cast<uint8_t>(value);
+	return true;
+}
+
+static bool ParseBytes(const char* value, std::vector<uint8_t>& out)
+{
+	out.clear();
+	if (!value)
+		return false;
+
+	if (!V_strnicmp(value, "0x", 2))
+	{
+		const char* hex = value + 2;
+		size_t len = strlen(hex);
+		if ((len % 2) != 0)
+			return false;
+		out.reserve(len / 2);
+		for (size_t i = 0; i < len; i += 2)
+		{
+			char token[3] {hex[i], hex[i + 1], '\0'};
+			char* end = nullptr;
+			unsigned long byte = strtoul(token, &end, 16);
+			if (!end || *end || byte > 0xFF)
+				return false;
+			out.push_back(static_cast<uint8_t>(byte));
+		}
+		return true;
+	}
+
+	auto parts = SplitString(value, ',');
+	if (parts.empty())
+		return false;
+	out.reserve(parts.size());
+	for (const auto& part : parts)
+	{
+		uint8_t byte = 0;
+		if (!ParseByteToken(part, byte))
+			return false;
+		out.push_back(byte);
+	}
+	return true;
+}
+
+template <typename T>
+static void AppendValueBytes(std::vector<uint8_t>& out, T value)
+{
+	out.resize(sizeof(T));
+	memcpy(out.data(), &value, sizeof(T));
+}
+
 static bool DesignerContains(CEntityIdentity* identity, const char* needle)
 {
 	const char* designer = identity ? identity->m_designerName.String() : nullptr;
@@ -196,7 +284,14 @@ static bool ValidatePath(const OverrideRule& rule, std::string& error)
 
 void OverrideManager::Clear()
 {
+	for (const auto& rule : m_compiledRules)
+	{
+		if (rule.enabled)
+			MarkEntityFieldDirtyByOffset(rule.entityIndex, rule.offset);
+	}
 	m_rules.clear();
+	m_compiledRules.clear();
+	m_compiledRulesByEntity.clear();
 }
 
 bool OverrideManager::AddFromTokens(int argc, const char** argv, std::string& error)
@@ -229,6 +324,219 @@ bool OverrideManager::AddFromTokens(int argc, const char** argv, std::string& er
 	return true;
 }
 
+bool OverrideManager::ResolveFieldPath(const char* className, const char* fieldPath, int32_t& offset, int32_t& size, std::string& typeName, std::string& error) const
+{
+	if (!className || !className[0] || !fieldPath || !fieldPath[0])
+	{
+		error = "class and field path are required";
+		return false;
+	}
+
+	auto parts = SplitString(fieldPath, '.');
+	if (parts.empty())
+	{
+		error = "field path is empty";
+		return false;
+	}
+
+	offset = 0;
+	size = 0;
+	std::string currentClass = className;
+	for (size_t i = 0; i < parts.size(); ++i)
+	{
+		auto field = schema::FindField(currentClass.c_str(), parts[i].c_str());
+		if (!field.found)
+		{
+			error = "schema field not found: " + currentClass + "::" + parts[i];
+			return false;
+		}
+
+		offset += field.offset;
+		size = field.size;
+		typeName = field.typeName;
+		if (i + 1 < parts.size())
+		{
+			if (field.typeName.empty())
+			{
+				error = "intermediate field has no schema type name";
+				return false;
+			}
+			currentClass = field.typeName;
+		}
+	}
+
+	return true;
+}
+
+bool OverrideManager::CompileValue(FieldType type, int32_t fieldSize, const char* value, std::vector<uint8_t>& out, std::string& stringValue, std::string& error) const
+{
+	out.clear();
+	stringValue.clear();
+
+	switch (type)
+	{
+		case FieldType::Bool: {
+			bool b = !V_stricmp(value, "true") || atoi(value) != 0;
+			AppendValueBytes(out, b);
+			return true;
+		}
+		case FieldType::Int8: AppendValueBytes(out, static_cast<int8_t>(strtol(value, nullptr, 0))); return true;
+		case FieldType::UInt8: AppendValueBytes(out, static_cast<uint8_t>(strtoul(value, nullptr, 0))); return true;
+		case FieldType::Int16: AppendValueBytes(out, static_cast<int16_t>(strtol(value, nullptr, 0))); return true;
+		case FieldType::UInt16: AppendValueBytes(out, static_cast<uint16_t>(strtoul(value, nullptr, 0))); return true;
+		case FieldType::Int32: AppendValueBytes(out, static_cast<int32_t>(strtol(value, nullptr, 0))); return true;
+		case FieldType::UInt32: AppendValueBytes(out, static_cast<uint32_t>(strtoul(value, nullptr, 0))); return true;
+		case FieldType::Int64: AppendValueBytes(out, static_cast<int64_t>(strtoll(value, nullptr, 0))); return true;
+		case FieldType::UInt64: AppendValueBytes(out, static_cast<uint64_t>(strtoull(value, nullptr, 0))); return true;
+		case FieldType::Float: AppendValueBytes(out, static_cast<float>(atof(value))); return true;
+		case FieldType::Bytes: {
+			if (!ParseBytes(value, out))
+			{
+				error = "bytes value must be 0xAABBCC or comma-separated byte values";
+				return false;
+			}
+			if (fieldSize > 0 && static_cast<int32_t>(out.size()) > fieldSize)
+			{
+				error = "bytes value is larger than schema field";
+				return false;
+			}
+			return true;
+		}
+		case FieldType::StringPtr: {
+			if (fieldSize > 0 && fieldSize != static_cast<int32_t>(sizeof(const char*)))
+			{
+				error = "string currently supports pointer-sized char* fields only; use bytes for fixed buffers";
+				return false;
+			}
+			stringValue = value ? value : "";
+			const char* pointer = stringValue.c_str();
+			out.resize(sizeof(pointer));
+			memcpy(out.data(), &pointer, sizeof(pointer));
+			return true;
+		}
+	}
+
+	error = "unsupported type";
+	return false;
+}
+
+void OverrideManager::RebuildCompiledIndex()
+{
+	m_compiledRulesByEntity.clear();
+	for (size_t i = 0; i < m_compiledRules.size(); ++i)
+	{
+		if (m_compiledRules[i].type == FieldType::StringPtr)
+		{
+			const char* pointer = m_compiledRules[i].stringValue.c_str();
+			m_compiledRules[i].value.resize(sizeof(pointer));
+			memcpy(m_compiledRules[i].value.data(), &pointer, sizeof(pointer));
+		}
+		if (m_compiledRules[i].enabled)
+			m_compiledRulesByEntity[m_compiledRules[i].entityIndex].push_back(i);
+	}
+}
+
+bool OverrideManager::MarkEntityFieldDirtyByOffset(int entityIndex, int32_t offset)
+{
+	auto* identity = FindIdentityByIndex(entityIndex);
+	if (!identity || !identity->m_pInstance)
+		return false;
+
+	NetworkStateChangedData data(static_cast<uint32>(offset));
+	identity->m_pInstance->NetworkStateChanged(data);
+	return true;
+}
+
+int OverrideManager::AddCompiledRule(int recipientSlot, int entityIndex, const char* className, const char* fieldPath, const char* type, const char* value, std::string& error)
+{
+	if (recipientSlot < -1 || recipientSlot >= 64)
+	{
+		error = "recipient slot must be all/-1 or 0..63";
+		return 0;
+	}
+	if (entityIndex < 0)
+	{
+		error = "entity index must be >= 0";
+		return 0;
+	}
+
+	FieldType fieldType {};
+	if (!ParseType(type, fieldType))
+	{
+		error = "unknown type";
+		return 0;
+	}
+
+	CompiledOverrideRule rule;
+	rule.id = m_nextId++;
+	rule.recipientSlot = recipientSlot;
+	rule.entityIndex = entityIndex;
+	rule.className = className ? className : "";
+	rule.fieldPath = fieldPath ? fieldPath : "";
+	std::string schemaType;
+	if (!ResolveFieldPath(rule.className.c_str(), rule.fieldPath.c_str(), rule.offset, rule.size, schemaType, error))
+		return 0;
+	rule.type = fieldType;
+	if (!CompileValue(fieldType, rule.size, value, rule.value, rule.stringValue, error))
+		return 0;
+	if (rule.size > 0 && fieldType != FieldType::Bytes && fieldType != FieldType::StringPtr && static_cast<int32_t>(rule.value.size()) > rule.size)
+	{
+		error = "value type is larger than schema field";
+		return 0;
+	}
+
+	m_compiledRules.push_back(rule);
+	RebuildCompiledIndex();
+	MarkEntityFieldDirtyByOffset(entityIndex, rule.offset);
+	SPMessage("compiled rule #%d: recipient=%d entity=%d %s::%s offset=%d size=%d schema_type=%s value_type=%s\n",
+		rule.id, rule.recipientSlot, rule.entityIndex, rule.className.c_str(), rule.fieldPath.c_str(), rule.offset, rule.size,
+		schemaType.c_str(), TypeName(rule.type));
+	return rule.id;
+}
+
+bool OverrideManager::RemoveRule(int id)
+{
+	for (auto& rule : m_compiledRules)
+	{
+		if (rule.id != id)
+			continue;
+		rule.enabled = false;
+		MarkEntityFieldDirtyByOffset(rule.entityIndex, rule.offset);
+		RebuildCompiledIndex();
+		return true;
+	}
+
+	for (auto& rule : m_rules)
+	{
+		if (rule.id != id)
+			continue;
+		rule.enabled = false;
+		return true;
+	}
+
+	return false;
+}
+
+bool OverrideManager::MarkRuleDirty(int id)
+{
+	for (const auto& rule : m_compiledRules)
+	{
+		if (rule.id == id && rule.enabled)
+			return MarkEntityFieldDirtyByOffset(rule.entityIndex, rule.offset);
+	}
+	return false;
+}
+
+bool OverrideManager::MarkEntityFieldDirty(int entityIndex, const char* className, const char* fieldPath, std::string& error)
+{
+	int32_t offset = 0;
+	int32_t size = 0;
+	std::string typeName;
+	if (!ResolveFieldPath(className, fieldPath, offset, size, typeName, error))
+		return false;
+	return MarkEntityFieldDirtyByOffset(entityIndex, offset);
+}
+
 bool OverrideManager::AddWeaponItemDefRule(int recipientSlot, const char* target, uint16_t itemDefinitionIndex, std::string& error)
 {
 	OverrideRule rule;
@@ -345,6 +653,12 @@ void OverrideManager::Dump() const
 	}
 	for (const auto& rule : m_rules)
 		SPMessage("#%d recipient=%d target=%s field=%s::%s type=%s\n", rule.id, rule.recipientSlot, rule.target.c_str(), rule.className.c_str(), rule.fieldName.c_str(), TypeName(rule.type));
+	for (const auto& rule : m_compiledRules)
+	{
+		if (rule.enabled)
+			SPMessage("#%d recipient=%d entity=%d field=%s::%s offset=%d size=%d type=%s\n",
+				rule.id, rule.recipientSlot, rule.entityIndex, rule.className.c_str(), rule.fieldPath.c_str(), rule.offset, rule.size, TypeName(rule.type));
+	}
 }
 
 uintptr_t OverrideManager::FindFirstEntityForTarget(const OverrideRule& rule) const
@@ -545,8 +859,46 @@ std::vector<AppliedOverride> OverrideManager::ApplyForRecipient(CPlayerSlot slot
 	return applied;
 }
 
+std::vector<AppliedOverride> OverrideManager::ApplyForPackedEntity(CPlayerSlot recipient, int entityIndex, void* entityData)
+{
+	std::vector<AppliedOverride> applied;
+	if (!entityData || m_compiledRulesByEntity.empty())
+		return applied;
+
+	auto found = m_compiledRulesByEntity.find(entityIndex);
+	if (found == m_compiledRulesByEntity.end())
+		return applied;
+
+	for (size_t ruleIndex : found->second)
+	{
+		const auto& rule = m_compiledRules[ruleIndex];
+		if (!rule.enabled || (rule.recipientSlot != -1 && rule.recipientSlot != recipient.Get()))
+			continue;
+		if (rule.value.empty())
+			continue;
+
+		auto* address = reinterpret_cast<uint8_t*>(entityData) + rule.offset;
+		AppliedOverride saved {};
+		saved.address = address;
+		saved.type = rule.type;
+		saved.originalBytes.resize(rule.value.size());
+		memcpy(saved.originalBytes.data(), address, saved.originalBytes.size());
+		memcpy(address, rule.value.data(), rule.value.size());
+		applied.push_back(saved);
+	}
+
+	if (m_trace && !applied.empty())
+		SPMessage("packed entity overrides recipient=%d entity=%d changed=%zu\n", recipient.Get(), entityIndex, applied.size());
+	return applied;
+}
+
 void OverrideManager::Restore(const std::vector<AppliedOverride>& applied)
 {
 	for (auto it = applied.rbegin(); it != applied.rend(); ++it)
+	{
+		if (!it->originalBytes.empty())
+			memcpy(it->address, it->originalBytes.data(), it->originalBytes.size());
+		else
 			WriteBits(it->address, it->type, it->originalBits);
+	}
 }

src/overrides.h

@@ -5,6 +5,7 @@
 #include <cstdint>
 #include <array>
 #include <string>
+#include <unordered_map>
 #include <vector>
 
 enum class FieldType
@@ -19,6 +20,8 @@ enum class FieldType
 	Int64,
 	UInt64,
 	Float,
+	Bytes,
+	StringPtr,
 };
 
 struct FieldPathSegment
@@ -45,6 +48,22 @@ struct AppliedOverride
 	uint8_t* address {};
 	FieldType type {};
 	uint64_t originalBits {};
+	std::vector<uint8_t> originalBytes;
+};
+
+struct CompiledOverrideRule
+{
+	int id {};
+	int recipientSlot {-1};
+	int entityIndex {-1};
+	std::string className;
+	std::string fieldPath;
+	int32_t offset {};
+	int32_t size {};
+	FieldType type {FieldType::Int32};
+	std::vector<uint8_t> value;
+	std::string stringValue;
+	bool enabled {true};
 };
 
 class OverrideManager
@@ -52,6 +71,10 @@ class OverrideManager
 public:
 	void Clear();
 	bool AddFromTokens(int argc, const char** argv, std::string& error);
+	int AddCompiledRule(int recipientSlot, int entityIndex, const char* className, const char* fieldPath, const char* type, const char* value, std::string& error);
+	bool RemoveRule(int id);
+	bool MarkRuleDirty(int id);
+	bool MarkEntityFieldDirty(int entityIndex, const char* className, const char* fieldPath, std::string& error);
 	bool AddWeaponItemDefRule(int recipientSlot, const char* target, uint16_t itemDefinitionIndex, std::string& error);
 	bool SetHealthMoneyTest(bool enabled, std::string& error);
 	bool SetHealth42Test(bool enabled, std::string& error);
@@ -60,13 +83,15 @@ public:
 	void Dump() const;
 	void SetTrace(bool value) { m_trace = value; }
 	bool Trace() const { return m_trace; }
-	size_t RuleCount() const { return m_rules.size(); }
+	size_t RuleCount() const { return m_rules.size() + m_compiledRules.size(); }
 	size_t DynamicRuleCount() const { return (m_healthMoneyTest ? 1 : 0) + (m_health42Test ? 1 : 0); }
-	bool Empty() const { return m_rules.empty() && !m_healthMoneyTest && !m_health42Test; }
+	bool Empty() const { return m_rules.empty() && m_compiledRules.empty() && !m_healthMoneyTest && !m_health42Test; }
 	bool Health42Test() const { return m_health42Test; }
 	bool TryGetHealth42Value(CPlayerSlot recipient, int& value) const;
+	bool HasPackedOverrides() const { return !m_compiledRules.empty() || m_health42Test; }
 
 	std::vector<AppliedOverride> ApplyForRecipient(CPlayerSlot slot);
+	std::vector<AppliedOverride> ApplyForPackedEntity(CPlayerSlot recipient, int entityIndex, void* entityData);
 	std::vector<AppliedOverride> ApplyGlobalHealth42();
 	int MarkPlayerHealthDirty();
 	void Restore(const std::vector<AppliedOverride>& applied);
@@ -76,8 +101,14 @@ private:
 	uintptr_t FindFirstEntityForTarget(const OverrideRule& rule) const;
 	uint8_t* ResolveAddress(uintptr_t entity, const OverrideRule& rule) const;
 	void ApplyHealthMoneyTest(CPlayerSlot slot, std::vector<AppliedOverride>& applied);
+	bool ResolveFieldPath(const char* className, const char* fieldPath, int32_t& offset, int32_t& size, std::string& typeName, std::string& error) const;
+	bool CompileValue(FieldType type, int32_t fieldSize, const char* value, std::vector<uint8_t>& out, std::string& stringValue, std::string& error) const;
+	void RebuildCompiledIndex();
+	bool MarkEntityFieldDirtyByOffset(int entityIndex, int32_t offset);
 
 	std::vector<OverrideRule> m_rules;
+	std::vector<CompiledOverrideRule> m_compiledRules;
+	std::unordered_map<int, std::vector<size_t>> m_compiledRulesByEntity;
 	int m_nextId {1};
 	bool m_trace {false};
 	bool m_healthMoneyTest {false};

src/plugin.cpp

@@ -178,6 +178,63 @@ CON_COMMAND_F(sp_clear, "Clear SendProxy rules", FCVAR_NONE)
 	SPMessage("rules cleared\n");
 }
 
+CON_COMMAND_F(sp_set_exact, "sp_set_exact <recipient|all> <entity_index> <ClassName> <field.path> <type> <value>", FCVAR_NONE)
+{
+	if (args.ArgC() < 7)
+	{
+		SPWarning("usage: sp_set_exact <recipient|all> <entity_index> <ClassName> <field.path> <type> <value>\n");
+		return;
+	}
+
+	int recipientSlot = !V_stricmp(args[1], "all") ? -1 : atoi(args[1]);
+	int entityIndex = atoi(args[2]);
+	std::string error;
+	int id = g_overrides.AddCompiledRule(recipientSlot, entityIndex, args[3], args[4], args[5], args[6], error);
+	if (!id)
+	{
+		SPWarning("%s\n", error.c_str());
+		return;
+	}
+
+	g_enabled = true;
+	g_armed = true;
+	SPMessage("enabled=1 armed=1 rule_id=%d\n", id);
+}
+
+CON_COMMAND_F(sp_unset, "sp_unset <rule_id>", FCVAR_NONE)
+{
+	if (args.ArgC() < 2)
+	{
+		SPWarning("usage: sp_unset <rule_id>\n");
+		return;
+	}
+
+	int id = atoi(args[1]);
+	if (!g_overrides.RemoveRule(id))
+	{
+		SPWarning("rule %d not found\n", id);
+		return;
+	}
+	SPMessage("rule %d removed\n", id);
+}
+
+CON_COMMAND_F(sp_dirty, "sp_dirty <entity_index> <ClassName> <field.path>", FCVAR_NONE)
+{
+	if (args.ArgC() < 4)
+	{
+		SPWarning("usage: sp_dirty <entity_index> <ClassName> <field.path>\n");
+		return;
+	}
+
+	std::string error;
+	if (!g_overrides.MarkEntityFieldDirty(atoi(args[1]), args[2], args[3], error))
+	{
+		SPWarning("%s\n", error.empty() ? "failed to mark field dirty" : error.c_str());
+		return;
+	}
+	SPMessage("marked entity %d %s::%s dirty\n", atoi(args[1]), args[2], args[3]);
+}
+
 CON_COMMAND_F(sp_set, "sp_set <recipient|all> <entity|bot|all> <ClassName> <field> <type> <value>", FCVAR_NONE)
 {
 	const char* argv[8] {};
@@ -188,6 +245,43 @@ CON_COMMAND_F(sp_set, "sp_set <recipient|all> <entity|bot|all> <ClassName> <fiel
 		SPWarning("%s\n", error.c_str());
 }
 
+extern "C" __attribute__((visibility("default"))) int SendProxy_SetOverride(int recipientSlot, int entityIndex, const char* className, const char* fieldPath, const char* type, const char* value)
+{
+	std::string error;
+	int id = g_overrides.AddCompiledRule(recipientSlot, entityIndex, className, fieldPath, type, value, error);
+	if (!id)
+	{
+		SPWarning("SendProxy_SetOverride failed: %s\n", error.c_str());
+		return 0;
+	}
+
+	g_enabled = true;
+	g_armed = true;
+	return id;
+}
+
+extern "C" __attribute__((visibility("default"))) bool SendProxy_RemoveOverride(int ruleId)
+{
+	return g_overrides.RemoveRule(ruleId);
+}
+
+extern "C" __attribute__((visibility("default"))) void SendProxy_ClearOverrides()
+{
+	g_overrides.Clear();
+}
+
+extern "C" __attribute__((visibility("default"))) bool SendProxy_MarkDirty(int entityIndex, const char* className, const char* fieldPath)
+{
+	std::string error;
+	if (!g_overrides.MarkEntityFieldDirty(entityIndex, className, fieldPath, error))
+	{
+		if (!error.empty())
+			SPWarning("SendProxy_MarkDirty failed: %s\n", error.c_str());
+		return false;
+	}
+	return true;
+}
+
 CON_COMMAND_F(sp_weapon_test, "sp_weapon_test <weapon_entity_substring|all> <item_definition_index>", FCVAR_NONE)
 {
 	if (args.ArgC() < 3)

src/schema.cpp

@@ -55,6 +55,14 @@ SchemaField schema::FindField(const char* className, const char* fieldName)
 			continue;
 		result.offset = field.m_nSingleInheritanceOffset;
 		result.networked = IsNetworked(field);
+		if (field.m_pType)
+		{
+			int size = 0;
+			uint8 alignment = 0;
+			if (field.m_pType->GetSizeAndAlignment(size, alignment))
+				result.size = size;
+			result.typeName = field.m_pType->m_sTypeName.String();
+		}
 		result.found = true;
 		g_cache[key] = result;
 		return result;
@@ -87,7 +95,12 @@ void schema::DumpFields(const char* className, const char* contains)
 		const auto& field = info->m_pFields[i];
 		if (contains && contains[0] && !V_stristr(field.m_pszName, contains))
 			continue;
-		SPMessage("%s::%s offset=%d networked=%d\n", className, field.m_pszName, field.m_nSingleInheritanceOffset, IsNetworked(field) ? 1 : 0);
+		const char* typeName = field.m_pType ? field.m_pType->m_sTypeName.String() : "";
+		int size = 0;
+		uint8 alignment = 0;
+		if (field.m_pType)
+			field.m_pType->GetSizeAndAlignment(size, alignment);
+		SPMessage("%s::%s offset=%d size=%d type=%s networked=%d\n", className, field.m_pszName, field.m_nSingleInheritanceOffset, size, typeName ? typeName : "", IsNetworked(field) ? 1 : 0);
 		++printed;
 	}
 	SPMessage("%s fields printed=%d filter=%s\n", className, printed, contains && contains[0] ? contains : "<none>");

src/schema.h

@@ -8,8 +8,10 @@ class ISchemaSystem;
 struct SchemaField
 {
 	int32_t offset {};
+	int32_t size {};
 	bool networked {};
 	bool found {};
+	std::string typeName;
 };
 
 namespace schema