private static void InitializeUnityVersion()
{
string unityVersion = string.Copy(MelonUtils.GetUnityVersion());
if (string.IsNullOrEmpty(unityVersion))
{
return;
}
string[] unityVersionSplit = unityVersion.Split('.');
if ((unityVersionSplit == null) || (unityVersionSplit.Length < 2))
{
return;
}
int major = int.Parse(unityVersionSplit[0]);
int minor = int.Parse(unityVersionSplit[1]);
int patch = 0;
if (unityVersionSplit.Length > 2)
{
string patchString = unityVersionSplit[2];
char firstBadChar = patchString.FirstOrDefault(it => it <'0' || it> '9');
patch = int.Parse(firstBadChar == 0 ? patchString : patchString.Substring(0, patchString.IndexOf(firstBadChar)));
}
UnityVersionHandler.Initialize(major, minor, patch);
}
static Mesh()
{
InternalClassPointerStore <Mesh> .NativeClassPtr = UnityInternals.GetClass("UnityEngine.CoreModule.dll", "UnityEngine", "Mesh");
UnityInternals.runtime_class_init(InternalClassPointerStore <Mesh> .NativeClassPtr);
m_ctor = UnityInternals.GetMethod(InternalClassPointerStore <Mesh> .NativeClassPtr, ".ctor", "System.Void");
m_set_triangles = UnityInternals.GetMethod(InternalClassPointerStore <Mesh> .NativeClassPtr, "set_triangles", "System.Void", "System.Int32[]");
m_RecalculateBounds = UnityInternals.GetMethod(InternalClassPointerStore <Mesh> .NativeClassPtr, "RecalculateBounds", "System.Void");
if (NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new string[] { "2020.1.0" }))
{
m_SetArrayForChannelImpl_2020 = UnityInternals.ResolveICall <SetArrayForChannelImpl_2020>("UnityEngine.Mesh::SetArrayForChannelImpl");
type_SetArrayForChannelImpl = 2;
}
else if (NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new string[] { "2019.3.0" }))
{
m_SetArrayForChannelImpl_2019 = UnityInternals.ResolveICall <SetArrayForChannelImpl_2019>("UnityEngine.Mesh::SetArrayForChannelImpl");
type_SetArrayForChannelImpl = 1;
}
else if (NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new string[] { "2017.1.0" }))
{
m_SetArrayForChannelImpl_2017 = UnityInternals.ResolveICall <SetArrayForChannelImpl_2017>("UnityEngine.Mesh::SetArrayForChannelImpl");
type_SetArrayForChannelImpl = 0;
}
}
unsafe static Graphics()
{
InternalClassPointerStore <Graphics> .NativeClassPtr = UnityInternals.GetClass("UnityEngine.CoreModule.dll", "UnityEngine", "Graphics");
fd_Internal_DrawTexture = UnityInternals.ResolveICall <Internal_DrawTextureDelegate>("UnityEngine.Graphics::Internal_DrawTexture");
if (NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new string[] { "2018.2.0", "2019.1.0" }))
{
fd_Internal_DrawMeshNow1_Injected = UnityInternals.ResolveICall <Internal_DrawMeshNow1_InjectedDelegate>("UnityEngine.Graphics::Internal_DrawMeshNow1_Injected");
}
else
{
fd_Internal_DrawMeshNow1_Injected = UnityInternals.ResolveICall <Internal_DrawMeshNow1_InjectedDelegate>("UnityEngine.Graphics::INTERNAL_CALL_Internal_DrawMeshNow1");
}
if (NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new string[] { "2019.3.0", "2020.1.0" }))
{
m_DrawTexture_Internal_struct = 3;
}
else if (NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new string[] { "2018.2.0", "2019.1.0" }))
{
m_DrawTexture_Internal_struct = 2;
}
else if (NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new string[] { "2017.3.0", "2018.1.0" }))
{
m_DrawTexture_Internal_struct = 1;
}
else if (NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new string[] { "2017.2.0" }))
{
m_DrawTexture_Internal_struct = 0;
}
}
internal UnityDependencies()
{
Version = MelonLaunchOptions.Il2CppAssemblyGenerator.ForceVersion_UnityDependencies;
if (string.IsNullOrEmpty(Version) || Version.Equals("0.0.0.0"))
{
Version = string.Copy(MelonUtils.GetUnityVersion());
}
URL = "https://github.com/LavaGang/Unity-Runtime-Libraries/raw/master/" + Version + ".zip";
Destination = Path.Combine(Core.BasePath, "UnityDependencies");
}
static GfxDevice()
{
if (NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new[] { "2020.2.7", "2020.3.0", "2021.1.0" }))
{
// `FrameTimingManager_CUSTOM_CaptureFrameTimings()` calls `GetRealGfxDevice()` after 4 bytes.
m_GetRealGfxDevice = (GetRealGfxDeviceDelegate)Marshal.GetDelegateForFunctionPointer(
CppUtils.ResolveRelativeInstruction(
(IntPtr)((long)UnityInternals.ResolveICall("UnityEngine.FrameTimingManager::CaptureFrameTimings") + (MelonUtils.IsGame32Bit() ? 0 : 4))),
typeof(GetRealGfxDeviceDelegate));
}
}
static Texture()
{
InternalClassPointerStore <Texture> .NativeClassPtr = UnityInternals.GetClass("UnityEngine.CoreModule.dll", "UnityEngine", "Texture");
if (NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new string[] { "2018.1.0" }))
{
getDataWidth = UnityInternals.ResolveICall <GetDataWidthDelegate>("UnityEngine.Texture::GetDataWidth");
getDataHeight = UnityInternals.ResolveICall <GetDataHeightDelegate>("UnityEngine.Texture::GetDataHeight");
}
else if (NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new string[] { "2017.1.0" }))
{
getDataWidth = UnityInternals.ResolveICall <GetDataWidthDelegate>("UnityEngine.Texture::Internal_GetWidth");
getDataHeight = UnityInternals.ResolveICall <GetDataHeightDelegate>("UnityEngine.Texture::Internal_GetHeight");
}
set_filterMode_ = UnityInternals.ResolveICall <set_filterModeDelegate>("UnityEngine.Texture::set_filterMode");
}
unsafe static UnityInternals()
{
if (MelonUtils.IsGameIl2Cpp())
{
domain = il2cpp_domain_get();
uint assemblyCount = 0;
IntPtr *assemblyArray = il2cpp_domain_get_assemblies(domain, ref assemblyCount);
for (int i = 0; i < assemblyCount; ++i)
{
assemblies.Add(new InternalAssembly(il2cpp_assembly_get_image(*(assemblyArray + i))));
}
}
else
{
domain = mono_domain_get();
string unityVersion = MelonUtils.GetUnityVersion();
MonoClass *testclass = (MonoClass *)Marshal.AllocHGlobal(sizeof(MonoClass));
testclass->applyZeroes();
testclass->nested_in_0x04 = (IntPtr)0x1234;
testclass->nested_in_0x08 = (IntPtr)0x5678;
testclass->nested_in_0x0C = (IntPtr)0x9012;
long returnedName = (long)mono_class_get_name((IntPtr)testclass);
MelonDebug.Msg($"returnedName {returnedName:X}");
Marshal.FreeHGlobal((IntPtr)testclass);
if (returnedName == 0x1234)
{
monoClassOffset = 0;
}
else if (returnedName == 0x5678)
{
monoClassOffset = (uint)IntPtr.Size * 1;
}
else if (returnedName == 0x9012)
{
monoClassOffset = (uint)IntPtr.Size * 2;
}
else
{
throw new Exception("Failed to find MonoClass name offset");
}
MelonDebug.Msg("monoClassOffset? " + monoClassOffset);
}
}
internal static void Init()
{
if (disabled)
{
return;
}
MelonDebug.Msg("Initializing UIStyleValues");
UIStyleValues.Init();
MelonDebug.Msg("UIStyleValues Initialized");
if (UICustomization.VersionText.Enabled)
{
TextGenerationSettings settings = new TextGenerationSettings();
settings.textAnchor = TextAnchor.MiddleCenter;
settings.color = UICustomization.VersionText.TextColor;
settings.generationExtents = new Vector2(540, 47.5f);
settings.richText = true;
settings.font = UIStyleValues.TextFont;
settings.pivot = new Vector2(0.5f, 0.5f);
settings.fontSize = 24;
settings.fontStyle = FontStyle.Bold;
settings.verticalOverflow = VerticalWrapMode.Overflow;
settings.scaleFactor = 1f;
settings.lineSpacing = 1f;
MelonDebug.Msg("TextGenerationSettings settings set");
string melonloaderText = (MelonLaunchOptions.Console.Mode == MelonLaunchOptions.Console.DisplayMode.LEMON)
? "<color=#FFCC4D>LemonLoader</color>"
: "<color=#78f764>Melon</color><color=#ff3c6a>Loader</color>";
melonloaderversionTextmesh = TextMeshGenerator.Generate($"{melonloaderText} v{BuildInfo.Version} Open-Beta", settings);
}
if (UICustomization.ProgressBar.Enabled ||
UICustomization.ProgressText.Enabled)
{
progressBar = new ProgressBar(width: 540, height: 36);
}
uint graphicsDeviceType = SystemInfo.GetGraphicsDeviceType();
MelonDebug.Msg("Graphics Device Type: " + graphicsDeviceType);
shouldCallWFLPAGT = NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new[] { "2020.2.7", "2020.3.0", "2021.1.0" }) &&
(graphicsDeviceType == /*DX11*/ 2 || graphicsDeviceType == /*DX12*/ 18)
? graphicsDeviceType : 0;
}
unsafe static UIVertexWrapper()
{
if (NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new string[] { "2020.2.0", "2021.1.0" }))
{
mode = 2;
sizeOfElement = sizeof(UIVertex_2020);
}
else if (NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new string[] { "2018.1.0" }))
{
mode = 1;
sizeOfElement = sizeof(UIVertex_2018);
}
else if (NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new string[] { "2017.2.0" }))
{
mode = 0;
sizeOfElement = sizeof(UIVertex_2017);
}
}
internal static int LoadAndRun(LemonFunc <int> functionToWaitForAsync)
{
// We don't support Unity versions under 2017.2.0 (yet?)
if (!MelonLaunchOptions.Core.StartScreen || !MelonUtils.GetUnityVersion().StartsWith("20") || MelonUtils.GetUnityVersion().StartsWith("2017.1"))
{
return(functionToWaitForAsync());
}
if (!Load())
{
return(functionToWaitForAsync());
}
if (LoadAndRunMethod != null)
{
return((int)LoadAndRunMethod.Invoke(null, new object[] { functionToWaitForAsync }));
}
return(-1);
}
static Texture2D()
{
InternalClassPointerStore <Texture2D> .NativeClassPtr = UnityInternals.GetClass("UnityEngine.CoreModule.dll", "UnityEngine", "Texture2D");
UnityInternals.runtime_class_init(InternalClassPointerStore <Texture2D> .NativeClassPtr);
m_ctor = UnityInternals.GetMethod(InternalClassPointerStore <Texture2D> .NativeClassPtr, ".ctor", "System.Void", "System.Int32", "System.Int32");
m_get_whiteTexture = UnityInternals.GetMethod(InternalClassPointerStore <Texture2D> .NativeClassPtr, "get_whiteTexture", "UnityEngine.Texture2D");
if (NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new string[] { "2018.1.0" }))
{
type_SetPixelsImpl = 1;
m_SetPixelsImpl_2018 = UnityInternals.ResolveICall <SetPixelsImplDelegate_2018>("UnityEngine.Texture2D::SetPixelsImpl");
}
else if (NativeSignatureResolver.IsUnityVersionOverOrEqual(MelonUtils.GetUnityVersion(), new string[] { "2017.1.0" }))
{
type_SetPixelsImpl = 0;
m_SetPixelsImpl_2017 = UnityInternals.ResolveICall <SetPixelsImplDelegate_2017>("UnityEngine.Texture2D::SetPixels");
}
m_Apply = UnityInternals.GetMethod(InternalClassPointerStore <Texture2D> .NativeClassPtr, "Apply", "System.Void");
}
internal static bool Apply()
{
NativeSignatureFlags currentFlags = default;
currentFlags |= MelonUtils.IsGame32Bit() ? NativeSignatureFlags.X86 : NativeSignatureFlags.X64;
currentFlags |= MelonUtils.IsGameIl2Cpp() ? NativeSignatureFlags.Il2Cpp : NativeSignatureFlags.Mono;
MelonDebug.Msg("Current Unity flags: " + (uint)currentFlags);
string currentUnityVersion = MelonUtils.GetUnityVersion();
int splitIndex = currentUnityVersion.IndexOf('f');
if (splitIndex == -1)
{
splitIndex = currentUnityVersion.IndexOf('p');
}
if (splitIndex > 0)
{
currentUnityVersion = currentUnityVersion.Substring(0, splitIndex);
}
MelonDebug.Msg("Unity version: " + currentUnityVersion);
string moduleName = "UnityPlayer.dll";
#if LINUX
// TODO
#elif OSX
// TODO
#elif ANDROID
// TODO
#else
if (!currentUnityVersion.StartsWith("20") || currentUnityVersion.StartsWith("2017.1"))
{
moduleName = "player_win.exe";
}
#endif
IntPtr moduleAddress = IntPtr.Zero;
int moduleSize = 0;
foreach (ProcessModule module in Process.GetCurrentProcess().Modules)
{
if (module.ModuleName == moduleName)
{
moduleAddress = module.BaseAddress;
moduleSize = module.ModuleMemorySize;
break;
}
}
if (moduleAddress == IntPtr.Zero)
{
MelonLogger.Error($"Failed to find module \"{moduleName}\"");
return(false);
}
bool success = true;
foreach (Type type in typeof(NativeSignatureResolver).Assembly.GetTypes())
{
foreach (FieldInfo fi in type.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static))
{
bool hasAttribute = false;
bool signaturefound = false;
bool optionalOnEarlyVersion = false;
IOrderedEnumerable <NativeSignatureAttribute> nativeSignatureAttributes = fi.GetCustomAttributes(false)
.Where(attr => attr is NativeSignatureAttribute)
.Select(attr => (NativeSignatureAttribute)attr)
.OrderByDescending(attr => attr.LookupIndex);
foreach (NativeSignatureAttribute attribute in nativeSignatureAttributes)
{
hasAttribute = true;
if ((attribute.Flags & currentFlags) != attribute.Flags)
{
continue;
}
if (!IsUnityVersionOverOrEqual(currentUnityVersion, attribute.MinimalUnityVersions))
{
continue;
}
signaturefound = true;
if (attribute.Signature == null)
{
optionalOnEarlyVersion = true;
break;
}
IntPtr ptr = CppUtils.Sigscan(moduleAddress, moduleSize, attribute.Signature);
if (ptr == IntPtr.Zero)
{
success = false;
MelonLogger.Error("Failed to find the signature for field " + fi.Name + " in module. Signature: " + attribute.Signature);
break;
}
if (typeof(Delegate).IsAssignableFrom(fi.FieldType))
{
fi.SetValue(null, Marshal.GetDelegateForFunctionPointer(ptr, fi.FieldType));
}
else if (typeof(IntPtr).IsAssignableFrom(fi.FieldType))
{
fi.SetValue(null, ptr);
}
else
{
MelonLogger.Error($"Invalid target type for field \"{fi.FieldType} {fi.Name}\"");
}
MelonDebug.Msg("Signature for " + fi.Name + ": " + attribute.Signature);
break;
}
if (hasAttribute && !signaturefound && !optionalOnEarlyVersion)
{
MelonLogger.Error("Failed to find a signature for field " + fi.Name + " for this version of Unity");
success = false;
}
hasAttribute = false;
signaturefound = false;
IOrderedEnumerable <NativeFieldValueAttribute> nativeFieldValueAttributes = fi.GetCustomAttributes(false)
.Where(attr => attr is NativeFieldValueAttribute)
.Select(attr => (NativeFieldValueAttribute)attr)
.OrderByDescending(attr => attr.LookupIndex);
foreach (NativeFieldValueAttribute attribute in nativeFieldValueAttributes)
{
hasAttribute = true;
if ((attribute.Flags & currentFlags) != attribute.Flags)
{
continue;
}
if (!IsUnityVersionOverOrEqual(currentUnityVersion, attribute.MinimalUnityVersions))
{
continue;
}
signaturefound = true;
fi.SetValue(null, attribute.Value);
MelonDebug.Msg("Value for " + fi.Name + ": " + attribute.Value);
break;
}
if (hasAttribute && !signaturefound)
{
MelonLogger.Error("Failed to find a value for field " + fi.Name + " for this version of Unity");
success = false;
}
}
}
return(success);
}
public static string GetUnityVersion() => MelonUtils.GetUnityVersion();