/**<summary>Patches coin glowing when moving.</summary>*/
private static void Patch_Dust_UpdateDust()
{
string functionName = "Terraria.Dust.UpdateDust";
var updateDust = IL.GetMethodDefinition(Dust, "UpdateDust", 0);
var onCoinGlow = ModDefinition.Import(IL.GetMethodDefinition(CoinReplacer, "OnCoinGlow"));
var checks = new IL.OperandCheck[] {
IL.VarCheck(LocOpCodes.Ldloc),
IL.CheckField(OpCodes.Ldfld, "Dust::type"),
IL.Check(OpCodes.Ldc_I4, (int)244),
IL.Check(OpCodes.Blt),
IL.VarCheck(LocOpCodes.Ldloc),
IL.CheckField(OpCodes.Ldfld, "Dust::type"),
IL.Check(OpCodes.Ldc_I4, (int)247),
IL.Check(OpCodes.Bgt)
};
int start = IL.ScanForInstructionPatternEnd(updateDust, checks);
CheckFailedToFindStart(start, 0, functionName);
var dust = IL.ScanForVariablePattern(updateDust, checks);
CheckFailedToFindVariable(dust, "dust", functionName);
int end = IL.ScanForInstructionPatternEnd(updateDust, start,
IL.CheckMethod(OpCodes.Call, "Lighting::AddLight")
);
CheckFailedToFindEnd(end, 0, functionName);
IL.MethodReplaceRange(updateDust, start, end,
Instruction.Create(OpCodes.Ldloc_S, dust),
Instruction.Create(OpCodes.Call, onCoinGlow)
);
}
/**<summary>Patches coin pickup text.</summary>*/
private static void Patch_ItemText_NewText()
{
string functionName = "Terraria.ItemText.NewText";
var newText = IL.GetMethodDefinition(ItemText, "NewText", 4);
var onCoinPickupText = ModDefinition.Import(IL.GetMethodDefinition(CoinReplacer, "OnCoinPickupText"));
var onCoinPickupText2 = ModDefinition.Import(IL.GetMethodDefinition(CoinReplacer, "OnCoinPickupText2"));
var checks = new IL.OperandCheck[] {
IL.Check(LocOpCodes.Ldloc),
IL.Check(OpCodes.Brfalse),
IL.CheckField(OpCodes.Ldsfld, "Main::itemText"),
IL.VarCheck(LocOpCodes.Ldloc),
IL.Check(OpCodes.Ldelem_Ref),
IL.CheckField(OpCodes.Ldfld, "ItemText::coinText"),
IL.Check(OpCodes.Brfalse)
};
int start = IL.ScanForNthInstructionPatternEnd(newText, 1, checks);
CheckFailedToFindStart(start, 0, functionName);
var i = IL.ScanForNthVariablePattern(newText, 1, checks);
CheckFailedToFindVariable(i, "i", functionName);
var vector = IL.ScanForVariablePattern(newText, start,
IL.CheckField(OpCodes.Ldsfld, "Main::fontMouseText"),
IL.Check(LocOpCodes.Ldloc),
IL.CheckMethod(OpCodes.Callvirt, "DynamicSpriteFont::MeasureString"),
IL.VarCheck(LocOpCodes.Stloc)
);
CheckFailedToFindVariable(vector, "vector", functionName);
int end = IL.ScanForInstructionPatternEnd(newText, start,
IL.Check(OpCodes.Ldc_I4, (int)246),
IL.Check(OpCodes.Ldc_I4, (int)138),
IL.Check(OpCodes.Ldc_I4_S, (sbyte)96),
IL.Check(OpCodes.Newobj),
IL.Check(OpCodes.Stfld)
);
CheckFailedToFindEnd(end, 0, functionName);
IL.MethodReplaceRange(newText, start, end,
Instruction.Create(OpCodes.Ldarg_0),
Instruction.Create(OpCodes.Ldloc_S, i),
Instruction.Create(OpCodes.Call, onCoinPickupText),
Instruction.Create(OpCodes.Stloc_S, vector)
);
checks = new IL.OperandCheck[] {
IL.CheckField(OpCodes.Ldsfld, "Main::itemText"),
IL.VarCheck(LocOpCodes.Ldloc),
IL.Check(OpCodes.Ldelem_Ref),
IL.CheckField(OpCodes.Ldfld, "ItemText::coinText"),
IL.Check(OpCodes.Brfalse)
};
start = IL.ScanForInstructionPatternEnd(newText, end + 5, checks);
CheckFailedToFindStart(start, 1, functionName);
var num2 = IL.ScanForVariablePattern(newText, end + 5, checks);
CheckFailedToFindVariable(num2, "num2", functionName);
end = IL.ScanForInstructionPatternEnd(newText, start,
IL.Check(OpCodes.Ldc_I4, (int)246),
IL.Check(OpCodes.Ldc_I4, (int)138),
IL.Check(OpCodes.Ldc_I4_S, (sbyte)96),
IL.Check(OpCodes.Newobj),
IL.Check(OpCodes.Stfld)
);
CheckFailedToFindEnd(end, 1, functionName);
IL.MethodReplaceRange(newText, start, end,
Instruction.Create(OpCodes.Ldarg_0),
Instruction.Create(OpCodes.Ldloc_S, num2),
Instruction.Create(OpCodes.Call, onCoinPickupText2)
);
}
/**<summary>Patches store buy and sell price text.</summary>*/
private static void Patch_Main_MouseText_DrawItemTooltip()
{
string functionName = "Terraria.Main.MouseText_DrawItemTooltip";
var mouseText_DrawItemTooltip = IL.GetMethodDefinition(Main, "MouseText_DrawItemTooltip", 4);
var onNPCShopPrice = ModDefinition.Import(IL.GetMethodDefinition(CoinReplacer, "OnNPCShopPrice"));
var storeValue = IL.ScanForVariablePattern(mouseText_DrawItemTooltip,
IL.CheckField(OpCodes.Ldsfld, "Main::npcShop"),
IL.Check(OpCodes.Ldc_I4_0),
IL.Check(OpCodes.Ble),
IL.CheckField(OpCodes.Ldsfld, "Main::HoverItem"),
IL.CheckMethod(OpCodes.Callvirt, "Item::GetStoreValue"),
IL.VarCheck(LocOpCodes.Stloc)
);
CheckFailedToFindVariable(storeValue, "storeValue", functionName);
int start = IL.ScanForInstructionPatternEnd(mouseText_DrawItemTooltip,
IL.Check(OpCodes.Ldsfld),
IL.CheckMethod(OpCodes.Callvirt, "Item::GetStoreValue"),
IL.Check(OpCodes.Ldc_I4_0),
IL.Check(OpCodes.Ble)
);
CheckFailedToFindStart(start, 0, functionName);
var array = IL.ScanForVariablePattern(mouseText_DrawItemTooltip, start,
IL.CheckField(OpCodes.Ldsfld, "Main::HoverItem"),
IL.CheckField(OpCodes.Ldfld, "Item::buy"),
IL.Check(OpCodes.Brtrue_S),
IL.VarCheck(LocOpCodes.Ldloc),
IL.Check(LocOpCodes.Ldloc),
IL.CheckField(OpCodes.Ldsfld, "Lang::tip")
);
CheckFailedToFindVariable(array, "array", functionName);
var num4 = IL.ScanForVariablePattern(mouseText_DrawItemTooltip, start,
IL.CheckField(OpCodes.Ldsfld, "Main::HoverItem"),
IL.CheckField(OpCodes.Ldfld, "Item::buy"),
IL.Check(OpCodes.Brtrue_S),
IL.Check(LocOpCodes.Ldloc),
IL.VarCheck(LocOpCodes.Ldloc),
IL.CheckField(OpCodes.Ldsfld, "Lang::tip")
);
CheckFailedToFindVariable(num4, "num4", functionName);
var array4 = IL.ScanForVariablePattern(mouseText_DrawItemTooltip, start,
IL.VarCheck(LocOpCodes.Ldloc),
IL.Check(LocOpCodes.Ldloc, num4),
IL.Check(OpCodes.Ldstr, "Price"),
IL.Check(OpCodes.Stelem_Ref)
);
if (IsTMod)
{
CheckFailedToFindVariable(array4, "array4", functionName);
}
var checks = new IL.OperandCheck[] {
IL.VarCheck(LocOpCodes.Ldloca),
IL.Check(OpCodes.Ldc_R4, 246f),
IL.Check(LocOpCodes.Ldloc),
IL.Check(OpCodes.Mul),
IL.Check(OpCodes.Conv_U1),
IL.Check(OpCodes.Ldc_R4, 138f),
IL.Check(LocOpCodes.Ldloc),
IL.Check(OpCodes.Mul),
IL.Check(OpCodes.Conv_U1),
IL.Check(OpCodes.Ldc_R4, 96f),
IL.Check(LocOpCodes.Ldloc),
IL.Check(OpCodes.Mul),
IL.Check(OpCodes.Conv_U1),
IL.Check(LocOpCodes.Ldloc),
IL.CheckMethod(OpCodes.Call, "Color::.ctor")
};
var color = IL.ScanForVariablePattern(mouseText_DrawItemTooltip, start, checks);
CheckFailedToFindVariable(color, "color", functionName);
int end = IL.ScanForInstructionPatternEnd(mouseText_DrawItemTooltip, start, checks);
CheckFailedToFindEnd(end, 0, functionName);
start = IL.MethodReplaceRange(mouseText_DrawItemTooltip, start, end,
Instruction.Create(OpCodes.Ldloc_S, color),
Instruction.Create(OpCodes.Ldloc_S, num4),
Instruction.Create(OpCodes.Ldloc_S, array),
Instruction.Create(OpCodes.Ldloc_S, storeValue),
Instruction.Create(OpCodes.Call, onNPCShopPrice),
Instruction.Create(OpCodes.Stloc_S, color)
);
if (IsTMod)
{
start = IL.MethodInsert(mouseText_DrawItemTooltip, start,
Instruction.Create(OpCodes.Ldloc_S, array4),
Instruction.Create(OpCodes.Ldloc_S, num4),
Instruction.Create(OpCodes.Ldstr, "Price"),
Instruction.Create(OpCodes.Stelem_Ref)
);
}
IL.MethodInsert(mouseText_DrawItemTooltip, start,
Instruction.Create(OpCodes.Ldloc_S, num4),
Instruction.Create(OpCodes.Ldc_I4_1),
Instruction.Create(OpCodes.Add),
Instruction.Create(OpCodes.Stloc_S, num4)
);
}
//--------------------------------
#region Patchers
/**<summary>Patches reforge cost text.</summary>*/
private static void Patch_Main_DrawInventory()
{
string functionName = "Terraria.Main.DrawInventory";
var drawInventory = IL.GetMethodDefinition(Main, "DrawInventory", 0);
var onReforgeCost = ModDefinition.Import(IL.GetMethodDefinition(CoinReplacer, "OnReforgeCost"));
var checks = new IL.OperandCheck[] {
IL.CheckField(OpCodes.Ldsfld, "Main::reforgeItem"),
IL.CheckField(OpCodes.Ldfld, "Item::type"),
IL.Check(OpCodes.Ldc_I4_0),
IL.Check(OpCodes.Ble),
IL.CheckSkipIndefinite(), // TMod fix
IL.CheckField(OpCodes.Ldsfld, "Main::reforgeItem"),
IL.CheckField(OpCodes.Ldfld, "Item::value"),
IL.VarCheck(LocOpCodes.Stloc),
IL.CheckSkipIndefinite(),
IL.CheckField(OpCodes.Ldsfld, "Main::player"),
IL.CheckField(OpCodes.Ldsfld, "Main::myPlayer"),
IL.Check(OpCodes.Ldelem_Ref),
IL.CheckField(OpCodes.Ldfld, "Player::discount"),
IL.Check(OpCodes.Brfalse_S),
IL.CheckSkipIndefinite(),
IL.VarCheck(LocOpCodes.Stloc),
IL.Check(OpCodes.Ldstr, ""),
IL.Check(LocOpCodes.Stloc)
};
int start = IL.ScanForInstructionPatternEnd(drawInventory, checks);
CheckFailedToFindStart(start, 0, functionName);
var num60 = IL.ScanForVariablePattern(drawInventory, checks);
CheckFailedToFindVariable(num60, "num60", functionName);
var text3 = IL.ScanForVariablePattern(drawInventory, start - 2,
IL.Check(OpCodes.Ldstr, ""),
IL.VarCheck(LocOpCodes.Stloc)
);
CheckFailedToFindVariable(text3, "text3", functionName);
int end = IL.ScanForInstructionPattern(drawInventory, start,
IL.CheckField(OpCodes.Ldsfld, "Main::spriteBatch"),
IL.Check(LocOpCodes.Ldloc),
IL.Check(OpCodes.Ldc_I4, 130),
IL.Check(OpCodes.Add),
IL.Check(OpCodes.Conv_R4),
IL.Check(OpCodes.Ldarg_0),
IL.CheckField(OpCodes.Ldfld, "Main::invBottom"),
IL.Check(OpCodes.Conv_R4),
IL.Check(OpCodes.Ldc_I4_1),
IL.CheckMethod(OpCodes.Call, "ItemSlot::DrawSavings")
);
CheckFailedToFindEnd(end, 0, functionName);
IL.MethodReplaceRange(drawInventory, start, end,
Instruction.Create(OpCodes.Ldloc_S, num60),
Instruction.Create(OpCodes.Call, onReforgeCost),
Instruction.Create(OpCodes.Stloc_S, text3)
);
}