# Game Rules

### **How's work**

The rules are as they describe the word, if the player breaks them, he can select his punishment, from finishing the mission or sending him a message to comply with it. (How to make a counter that if it ends you lose the mission)

## GameRules.VehicleCanNotBeDestroyed()

This function creates a thread that continuously checks if a specified vehicle still exists and has health greater than 0. If the vehicle is destroyed, the `onDestroy` function is called.

```lua
GM().GameRules.VehicleCanNotBeDestroyed(vehicle, onDestroy)
```

**Example**

```lua
local playerVehicle = GetVehiclePedIsIn(PlayerPedId())

GM().GameRules.VehicleCanNotBeDestroyed(playerVehicle, function()
    --- Boom!
    -- This functions acts when vehicle is destroyed.
    GM().EndGame(true, "Vehicle destroyed")
end)
```

## GameRules.PlayerMustBeInArea()

This rule states that the player MUST stay in the area.

## GameRules.PlayerMustBeInVehicle()

This rule states that the player MUST be stabilized in a vehicle and in a defined holding position.

## GameRules.PlayerInVehicleMustRespectSpeedLimit()

This rule is flexible, since it indicates that the player must respect an adequate speed, that is, he must not exceed it. (Taxi? Chase missions?)

## GameRules.CancelRule()

This function is used to cancel or remove a specific rule that has been previously set up using the ruleName. Different rule names correspond to different types of rules that can be canceled.

```lua
GM().GameRules.CancelRule(ruleId, params...)
```

**Example**

```lua
-- Cancel the "PlayerMustBeInArea" rule with the zoneId "missionArea"
GM().GameRules.CancelRule("PlayerMustBeInArea", "missionArea")

-- Cancel the "PlayerMustBeInVehicle" rule for a specific vehicle entity
GM().GameRules.CancelRule("PlayerMustBeInVehicle", vehicle)

-- Cancel the "PlayerInVehicleMustRespectSpeedLimit" rule
GM().GameRules.CancelRule("PlayerInVehicleMustRespectSpeedLimit")
```