close the black hole under LibertyCity (#610)

* close the black hole under LibertyCity * Update skybox_black_bottom_fix.ixx * Update skybox_black_bottom_fix.ixx * move code to fixes module --------- Co-authored-by: ThirteenAG <thirteenag@gmail.com>
ThirteenAG · Sep 14, 2024 · 9478586 · 9478586
1 parent 362dbce
commit 9478586
Showing 1 changed file with 39 additions and 0 deletions.
diff --git a/source/fixes.ixx b/source/fixes.ixx
@@ -434,6 +434,45 @@ public:
                     injector::MakeNOP(pattern.get_first(6), 6, true);
                 }
             }
+
+            // Skybox Black Bottom Fix
+            {
+                auto PatchVertices = [](float* ptr)
+                {
+                    for (auto i = 0; i < ((6156 / 4) / 3); i++)
+                    {
+                        auto pVertex = (ptr + i * 3);
+                        if (i < 32)
+                        {
+                            if (pVertex[1] < 0.0f)
+                            {
+                                injector::WriteMemory<float>(pVertex, 0.0f, true);
+                                injector::WriteMemory<float>(pVertex + 2, 0.0f, true);
+                            }
+                        }
+                        else
+                        {
+                            injector::WriteMemory<float>(pVertex + 1, (pVertex[1] - 0.16037700f) * 1.78f - 1.0f, true);
+                        }
+                    }
+                };
+
+                auto pattern = hook::pattern("C7 44 24 ? ? ? ? ? C7 44 24 ? ? ? ? ? E8 ? ? ? ? 8B 44 24 44");
+                if (!pattern.empty())
+                {
+                    auto addr = pattern.get_first<float*>(4);
+                    PatchVertices(*addr);
+                }
+                else
+                {
+                    pattern = hook::pattern("C7 46 ? ? ? ? ? C7 46 ? ? ? ? ? 5E 59 C3");
+                    if (!pattern.empty())
+                    {
+                        auto addr = pattern.get_first<float*>(3);
+                        PatchVertices(*addr);
+                    }
+                }
+            }
         };
     }
 } Fixes;