/// <summary>Changes the spouse.Contains check to use spouse.Equals instead.</summary>
public static IEnumerable <CIL> spouseContainsEquals_Transpiler(IEnumerable <CIL> instructions, MethodBase original)
{
try
{
var codes = new List <CodeInstruction>(instructions);
int patchCount = 0;
for (int i = 0; i < codes.Count - 4; i++)
{
// This is the snippet of code we want to find and change:
// OLD Game1.player.spouse.Contains(this.Name) or who.spouse.Contains(this.Name) (who is Farmer)
// NEW Game1.player.spouse.Equals(this.Name) or who.spouse.Equals(this.Name)
// It can be done with a single opcode call change from string.Contains to string.Equals
if (//callvirt instance string StardewValley.Farmer::get_spouse()
codes[i].opcode == OpCodes.Callvirt &&
(MethodInfo)codes[i].operand == typeof(Farmer).GetProperty("spouse").GetGetMethod() &&
//ldarg.0
codes[i + 1].opcode == OpCodes.Ldarg_0 &&
//call instance string StardewValley.Character::get_Name()
codes[i + 2].opcode == OpCodes.Call &&
(MethodInfo)codes[i + 2].operand == typeof(Character).GetProperty("Name").GetGetMethod() &&
//callvirt instance bool[mscorlib] System.String::Contains(string)
codes[i + 3].opcode == OpCodes.Callvirt &&
(MethodInfo)codes[i + 3].operand == typeof(string).GetMethod("Contains", new Type[] { typeof(string) }))
{
// Insert the new replacement instruction
codes[i + 3] = new CIL(OpCodes.Callvirt, typeof(string).GetMethod("Equals", new Type[] { typeof(string) }));
patchCount += 1;
}
}
// Log results of the patch attempt
if (patchCount == 0)
{
ModMonitor.LogOnce($"Couldn't find a code location to apply {nameof(spouseContainsEquals_Transpiler)} patch to {original.DeclaringType.Name}.{original.Name}\n" +
$"This is probably fine. Maybe a game update or another harmony mod already patched it?", LogLevel.Info);
}
else //patched at least once
{
//do stuff
ModMonitor.LogOnce($"Applied bugfix patch to {original.DeclaringType.Name}.{original.Name}: {nameof(spouseContainsEquals_Transpiler)}", LogLevel.Trace);
if (patchCount > 1)
{
ModMonitor.LogOnce($"Found an unusual number of patch locations for {nameof(spouseContainsEquals_Transpiler)} in {original.DeclaringType.Name}.{original.Name}\n" +
$"This might cause unexpected behaviour. Please share your SMAPI log with the creator of this mod.", LogLevel.Warn);
}
}
return(codes.AsEnumerable());
}
catch (Exception ex)
{
ModMonitor.Log($"Failed in {nameof(spouseContainsEquals_Transpiler)}:\n{ex}", LogLevel.Error);
return(instructions); // use original code
}
}
/// <summary>Adds a hook that calls FixedHUDMessage_Hook inside the game's addItemToInventoryBool method.</summary>
public static IEnumerable<CIL> addItemToInventoryBool_Transpiler(IEnumerable<CIL> instructions)
{
try
{
var codes = new List<CodeInstruction>(instructions);
for (int i = 0; i < codes.Count - 9; i++)
{
// This is the line of code we want to find and change:
// Game1.addHUDMessage(new HUDMessage(displayName, Math.Max(1, item.Stack), true, color, item));
// Game1.addHUDMessage(new HUDMessage(displayName, 1, true, color, item));
// We can most easily do this by replacing several instructions with nop
if (//ldloc.3
codes[i].opcode == OpCodes.Ldloc_3 &&
//ldc.i4.1 // Replace with nop
codes[i + 1].opcode == OpCodes.Ldc_I4_1 &&
//ldarg.1 // Replace with nop
codes[i + 2].opcode == OpCodes.Ldarg_1 &&
//callvirt instance int32 StardewValley.Item::get_Stack() // Replace with nop
codes[i + 3].opcode == OpCodes.Callvirt &&
(MethodInfo)codes[i + 3].operand == typeof(Item).GetMethod("get_Stack") &&
//call int32 [mscorlib]System.Math::Max(int32, int32) // Replace with Ldc_I4_1
codes[i + 4].opcode == OpCodes.Call &&
(MethodInfo)codes[i + 4].operand == typeof(Math).GetMethod("Max", types: new Type[] { typeof(int), typeof(int) }) &&
//ldc.i4.1
codes[i + 5].opcode == OpCodes.Ldc_I4_1 &&
//ldloc.2
codes[i + 6].opcode == OpCodes.Ldloc_2 &&
//ldarg.1
codes[i + 7].opcode == OpCodes.Ldarg_1 &&
//newobj instance void StardewValley.HUDMessage::.ctor(string, int32, bool, valuetype [Microsoft.Xna.Framework]Microsoft.Xna.Framework.Color, class StardewValley.Item)
codes[i + 8].opcode == OpCodes.Newobj &&
(ConstructorInfo)codes[i + 8].operand == typeof(HUDMessage).GetConstructor(
types: new Type[] { typeof(string), typeof(int), typeof(bool), typeof(Color), typeof(Item) }) &&
//call void StardewValley.Game1::addHUDMessage(class StardewValley.HUDMessage)
codes[i + 9].opcode == OpCodes.Call &&
(MethodInfo)codes[i + 9].operand == typeof(Game1).GetMethod("addHUDMessage"))
{
// Compose the new instructions to use as replacements
codes[i + 8] = new CIL(OpCodes.Call, Instance.Helper.Reflection.GetMethod(
typeof(FarmerPatch), nameof(FixedHUDMessage_Hook)).MethodInfo); // Call my function that returns a fixed HUDMessage
ModMonitor.LogOnce($"Added hook to Farmer.addItemToInventoryBool method: {nameof(addItemToInventoryBool_Transpiler)}", LogLevel.Trace);
}
}
return codes.AsEnumerable();
}
catch (Exception ex)
{
ModMonitor.Log($"Failed in {nameof(addItemToInventoryBool_Transpiler)}:\n{ex}", LogLevel.Error);
return instructions; // use original code
}
}
public static void PrintInstruction(Harmony.CodeInstruction instr)
{
if (instr.labels.Count > 0)
{
var labels = instr.labels.ToArray();
StringBuilder builder = new StringBuilder();
builder.Append($"LABELS : : : > {labels[0].GetHashCode()}");
int index = 1;
while (index < instr.labels.Count)
{
builder.Append($", {labels[index].GetHashCode()}");
index++;
}
Debug(builder.ToString());
}
Debug($"INSTR : {instr.opcode,-10}\t : "
+ ((instr.operand != null && instr.operand.GetType() == typeof(Label))
? $": : > {instr.operand.GetHashCode(),-100}" : $"{instr.operand,-100}"));
}
public CodeInstruction(CodeInstruction instruction)
{
opcode = instruction.opcode;
operand = instruction.operand;
labels = instruction.labels.ToArray().ToList();
}
public CodeMatch(CodeInstruction instruction, string name = null)
: this(instruction.opcode, instruction.operand, name)
{
}
public CodeMatcher SetInstructionAndAdvance(CodeInstruction instruction)
{
SetInstruction(instruction);
Pos++;
return(this);
}
// edit operation -------------------------------------------------------
public CodeMatcher SetInstruction(CodeInstruction instruction)
{
codes[Pos] = instruction;
return(this);
}
public virtual List <CodeInstruction> Process(CodeInstruction instruction)
{
return(null);
}