release Metin Stone Damage Limit System Full Src

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[C++/Py] Metin Stone Damage Limit System

This system allows server administrators to define a maximum damage threshold for specific Metin stones or special monsters. Once configured, players will not be able to exceed the specified damage value against these targets, ensuring better game balance and preventing rapid destruction of objectives.

---

### Technical Overview

• Server-Side: Implements the actual damage cap logic within the battle mechanics.

• Client-Side: Displays the damage limit information directly in the target window when a player selects a Metin stone.

• Configuration: Limits are defined per mob VNUM. While this version uses hardcoded maps, the configuration can be updated via SQL and refreshed in-game using the /reload p or /reload m commands depending on your implementation.

---

### Client Source Fix

If you encounter a compilation error regarding INSTANCE_TYPE_STONE missing in your Python character module, apply the following change:

File: PythonCharacterModule.cpp

C++

// Search for:
PyModule_AddIntConstant(poModule, "INSTANCE_TYPE_NPC", CActorInstance::TYPE_NPC);

// Add below:
PyModule_AddIntConstant(poModule, "INSTANCE_TYPE_STONE", CActorInstance::TYPE_STONE);

---

### Server-Side Implementation

File: char_battle.cpp Function: bool CHARACTER::Damage

C++

// Search for the block where damage is sent to the client:
if (pAttacker)
    SendDamagePacket(pAttacker, dam, damageFlag);

// Add the limit logic BEFORE the code above:
std::map<int, int> damageLimits = {
    {8009, 25000},
    {8010, 30000},
    {8011, 35000},
    {8012, 40000},
    {8013, 45000},
    {8014, 50000},
    {8024, 55000},
    {8025, 60000},
    {8026, 70000},
    {8027, 100000},
    {8127, 100000},
    {8158, 100000}
};

auto it = damageLimits.find(GetRaceNum());
if (it != damageLimits.end() && dam > it->second) {
    dam = it->second;
}

---

### Client-Side Implementation

File: uitarget.py

1. Define the UI dictionary:

Python

# Search for GRADE_NAME and add LIMITE_NIVEL below it:
LIMITE_NIVEL = {
    8009: "25000",
    8010: "30000",
    8011: "35000",
    8012: "40000",
    8013: "45000",
    8014: "50000",
    8024: "55000",
    8025: "60000",
    8026: "70000",
    8027: "100000",
    8127: "100000",
    8158: "100000",
}

2. Initialize the Text Line:

Python

# In __init__(self), search for closeButton = ui.Button() and add above:
damageLimitText = ui.TextLine()
damageLimitText.SetParent(self)
damageLimitText.SetOutline()
damageLimitText.SetHorizontalAlignRight()
damageLimitText.Hide()
self.damageLimitText = damageLimitText

3. Add the display function:

Python

# Add this function after __ShowMainCharacterMenu(self):
def ShowDamageLimitText(self, vid):
    vnum = nonplayer.GetRaceNumByVID(vid)

    if vnum in self.LIMITE_NIVEL:
        limita_damage = self.LIMITE_NIVEL[vnum]
        self.damageLimitText.SetText("Damage limit: " + str(limita_damage))
    else:
        self.damageLimitText.SetText("No damage limit for this target.")

    self.damageLimitText.Show()

4. Update UI Positioning:

Python

# Replace the existing UpdatePosition(self) function with this one:
def UpdatePosition(self):
    self.SetPosition(wndMgr.GetScreenWidth() / 2 - self.GetWidth() / 2, 10)

    if chr.GetInstanceType(self.vid) == chr.INSTANCE_TYPE_STONE:
        self.SetSize(self.GetWidth(), self.GetHeight() + 20)

        self.ShowDamageLimitText(self.vid)

        self.damageLimitText.SetPosition(self.GetWidth() / 2, 30)
        self.damageLimitText.Show()
    else:
        self.damageLimitText.Hide()

---

### Summary Note

The server-side code ensures that players cannot bypass the restriction, while the client-side changes provide a clear visual indicator in the Target UI, telling the player exactly what the damage ceiling is for the current Metin stone.

 

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