Added ConditionIsStorm

eco-api/src/main/kotlin/com/willfp/libreforge/conditions/Conditions.kt

@@ -25,6 +25,7 @@ object Conditions {
     val IS_SNEAKING: Condition = ConditionIsSneaking()
     val IN_AIR: Condition = ConditionInAir()
     val IS_NIGHT: Condition = ConditionIsNight()
+    val IS_STORM: Condition = ConditionIsStorm()
 
     /**
      * Get condition matching id.

eco-api/src/main/kotlin/com/willfp/libreforge/conditions/conditions/ConditionIsStorm.kt

@@ -0,0 +1,41 @@
+package com.willfp.libreforge.conditions.conditions
+
+import com.willfp.eco.core.config.interfaces.JSONConfig
+import com.willfp.libreforge.ConfigViolation
+import com.willfp.libreforge.conditions.Condition
+import com.willfp.libreforge.updateEffects
+import org.bukkit.entity.Player
+import org.bukkit.event.EventHandler
+import org.bukkit.event.EventPriority
+import org.bukkit.event.player.PlayerMoveEvent
+import org.bukkit.event.weather.WeatherChangeEvent
+
+class ConditionIsStorm: Condition("is_storm") {
+    @EventHandler(
+        priority = EventPriority.MONITOR,
+        ignoreCancelled = true
+    )
+    fun handle(event: WeatherChangeEvent) {
+        for (player in event.world.players) {
+            player.updateEffects()
+        }
+    }
+
+    override fun isConditionMet(player: Player, config: JSONConfig): Boolean {
+        return player.world.hasStorm() == config.getBool("is_storm")
+    }
+
+    override fun validateConfig(config: JSONConfig): List<ConfigViolation> {
+        val violations = mutableListOf<ConfigViolation>()
+
+        config.getBoolOrNull("is_storm")
+            ?: violations.add(
+                ConfigViolation(
+                    "is_storm",
+                    "You must specify if the player must be in a storm or not!"
+                )
+            )
+
+        return violations
+    }
+}