From c52d7cc694047eea48714e8046bb150592d67e56 Mon Sep 17 00:00:00 2001
From: german77 <juangerman-13@hotmail.com>
Date: Mon, 5 Feb 2024 14:19:26 -0600
Subject: dmnt: cheat: Add pause and resume support

---
 src/core/memory/cheat_engine.cpp  | 15 +++++++++++++++
 src/core/memory/cheat_engine.h    |  2 ++
 src/core/memory/dmnt_cheat_vm.cpp |  4 ++--
 src/core/memory/dmnt_cheat_vm.h   |  3 +++
 4 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/src/core/memory/cheat_engine.cpp b/src/core/memory/cheat_engine.cpp
index 14d1a3840..f3b8243d5 100644
--- a/src/core/memory/cheat_engine.cpp
+++ b/src/core/memory/cheat_engine.cpp
@@ -10,6 +10,7 @@
 #include "core/hle/kernel/k_page_table.h"
 #include "core/hle/kernel/k_process.h"
 #include "core/hle/kernel/k_process_page_table.h"
+#include "core/hle/kernel/svc_types.h"
 #include "core/hle/service/hid/hid_server.h"
 #include "core/hle/service/sm/sm.h"
 #include "core/memory.h"
@@ -84,6 +85,20 @@ u64 StandardVmCallbacks::HidKeysDown() {
     return static_cast<u64>(press_state & HID::NpadButton::All);
 }
 
+void StandardVmCallbacks::PauseProcess() {
+    if (system.ApplicationProcess()->IsSuspended()) {
+        return;
+    }
+    system.ApplicationProcess()->SetActivity(Kernel::Svc::ProcessActivity::Paused);
+}
+
+void StandardVmCallbacks::ResumeProcess() {
+    if (!system.ApplicationProcess()->IsSuspended()) {
+        return;
+    }
+    system.ApplicationProcess()->SetActivity(Kernel::Svc::ProcessActivity::Runnable);
+}
+
 void StandardVmCallbacks::DebugLog(u8 id, u64 value) {
     LOG_INFO(CheatEngine, "Cheat triggered DebugLog: ID '{:01X}' Value '{:016X}'", id, value);
 }
diff --git a/src/core/memory/cheat_engine.h b/src/core/memory/cheat_engine.h
index 619cabaa2..f52f2be7c 100644
--- a/src/core/memory/cheat_engine.h
+++ b/src/core/memory/cheat_engine.h
@@ -30,6 +30,8 @@ public:
     void MemoryReadUnsafe(VAddr address, void* data, u64 size) override;
     void MemoryWriteUnsafe(VAddr address, const void* data, u64 size) override;
     u64 HidKeysDown() override;
+    void PauseProcess() override;
+    void ResumeProcess() override;
     void DebugLog(u8 id, u64 value) override;
     void CommandLog(std::string_view data) override;
 
diff --git a/src/core/memory/dmnt_cheat_vm.cpp b/src/core/memory/dmnt_cheat_vm.cpp
index 8bc81e72d..f7097d01d 100644
--- a/src/core/memory/dmnt_cheat_vm.cpp
+++ b/src/core/memory/dmnt_cheat_vm.cpp
@@ -1205,9 +1205,9 @@ void DmntCheatVm::Execute(const CheatProcessMetadata& metadata) {
                 static_registers[rw_static_reg->static_idx] = registers[rw_static_reg->idx];
             }
         } else if (std::holds_alternative<PauseProcessOpcode>(cur_opcode.opcode)) {
-            // TODO: Pause cheat process
+            callbacks->PauseProcess();
         } else if (std::holds_alternative<ResumeProcessOpcode>(cur_opcode.opcode)) {
-            // TODO: Resume cheat process
+            callbacks->ResumeProcess();
         } else if (auto debug_log = std::get_if<DebugLogOpcode>(&cur_opcode.opcode)) {
             // Read value from memory.
             u64 log_value = 0;
diff --git a/src/core/memory/dmnt_cheat_vm.h b/src/core/memory/dmnt_cheat_vm.h
index fed6a24ad..1c1ed1259 100644
--- a/src/core/memory/dmnt_cheat_vm.h
+++ b/src/core/memory/dmnt_cheat_vm.h
@@ -271,6 +271,9 @@ public:
 
         virtual u64 HidKeysDown() = 0;
 
+        virtual void PauseProcess() = 0;
+        virtual void ResumeProcess() = 0;
+
         virtual void DebugLog(u8 id, u64 value) = 0;
         virtual void CommandLog(std::string_view data) = 0;
     };
-- 
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