No Dynamic Difficulty (#17)

* Create the RankPointType enum.

* Rename `post_update_pitch_yaw`.

* Hook `GameRankSystem::addRankPointDirect`.

* Implement the `addRankPointDirect` hook.

* Add comment.

* Make `rankType` const.

* formatting

Enums.h

@@ -0,0 +1,17 @@
+#pragma once
+#include <cstdint>
+
+namespace REFix {
+    enum class RankPointType : int32_t {
+        PlAttackHit = 0,
+        PlGetItem = 1,
+        PlDamage = 2,
+        PlRetry = 3,
+        FromFsm = 4,
+        FromScript = 5,
+        FromDirectSet = 6,
+        PlUseWeapon = 7,
+        PlUseDefenceItem = 8,
+        FromDebug = 9
+    };
+}

Hooks.cpp

@@ -1,10 +1,13 @@
 #include "Hooks.h"
+#include "Enums.h"
 
 namespace REFix {
     const float DEFAULT_FOV = 90.0f;
     extern const REF::API::Field* camera_param_field;
     extern const REF::API::Field* field_of_view_field;
 
+    void post_hook_null(void** ret_val, REFrameworkTypeDefinitionHandle ret_ty) {}
+
     int pre_update_pitch_yaw(int argc, void** argv, REFrameworkTypeDefinitionHandle* arg_tys) {
         REF::API::ManagedObject* const camera_param = camera_param_field->get_data<REF::API::ManagedObject*>(argv[1]);
         const float fov = *(float*)field_of_view_field->get_data_raw(camera_param);
@@ -14,5 +17,17 @@ namespace REFix {
         return REFRAMEWORK_HOOK_CALL_ORIGINAL;
     }
 
-    void post_update_pitch_yaw(void** ret_val, REFrameworkTypeDefinitionHandle ret_ty) {}
+    int pre_add_rank_point_direct(int argc, void** argv, REFrameworkTypeDefinitionHandle* arg_tys)
+    {
+        const RankPointType rankType = *(RankPointType*)&argv[3];
+
+        if (rankType == RankPointType::FromFsm ||
+            rankType == RankPointType::FromScript ||
+            rankType == RankPointType::FromDirectSet ||
+            rankType == RankPointType::FromDebug) {
+            return REFRAMEWORK_HOOK_CALL_ORIGINAL;
+        }
+
+        return REFRAMEWORK_HOOK_SKIP_ORIGINAL;
+    }
 }

Hooks.h

@@ -2,6 +2,7 @@
 #include "REFix.h"
 
 namespace REFix {
+    void post_hook_null(void** ret_val, REFrameworkTypeDefinitionHandle ret_ty);
     int pre_update_pitch_yaw(int argc, void** argv, REFrameworkTypeDefinitionHandle* arg_tys);
-    void post_update_pitch_yaw(void** ret_val, REFrameworkTypeDefinitionHandle ret_ty);
+    int pre_add_rank_point_direct(int argc, void** argv, REFrameworkTypeDefinitionHandle* arg_tys);
 }

REFix.vcxproj

@@ -154,6 +154,7 @@
     <ClInclude Include="AnimationCurveMutator.h" />
     <ClInclude Include="AnimCurveStraightener.h" />
     <ClInclude Include="AnimCurveFlattener.h" />
+    <ClInclude Include="Enums.h" />
     <ClInclude Include="Hooks.h" />
     <ClInclude Include="init.h" />
     <ClInclude Include="REFix.h" />

REFix.vcxproj.filters

@@ -36,6 +36,9 @@
     <ClInclude Include="Hooks.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="Enums.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="AnimationCurveMutator.cpp">

init.cpp

@@ -91,7 +91,11 @@ bool reframework_plugin_initialize(const REFrameworkPluginInitializeParam* param
 
     // Scale the input by the current FOV.
 
-    twirler_camera_controller_root_type->find_method("updatePitch")->add_hook(REFix::pre_update_pitch_yaw, REFix::post_update_pitch_yaw, false);
-    twirler_camera_controller_root_type->find_method("updateYaw")->add_hook(REFix::pre_update_pitch_yaw, REFix::post_update_pitch_yaw, false);
+    twirler_camera_controller_root_type->find_method("updatePitch")->add_hook(REFix::pre_update_pitch_yaw, REFix::post_hook_null, false);
+    twirler_camera_controller_root_type->find_method("updateYaw")->add_hook(REFix::pre_update_pitch_yaw, REFix::post_hook_null, false);
+
+    // Remove dynamic difficulty modulation.
+
+    tdb->find_method("app.ropeway.GameRankSystem", "addRankPointDirect")->add_hook(REFix::pre_add_rank_point_direct, REFix::post_hook_null, false);
     return true;
 }