[plugin] add more variables for requirements

plugin/src/main/kotlin/me/gabytm/minecraft/arcanevouchers/voucher/requirements/implementations/common/variable/BooleanVariable.kt

@@ -0,0 +1,9 @@
+package me.gabytm.minecraft.arcanevouchers.voucher.requirements.implementations.common.variable
+
+import me.gabytm.minecraft.arcanevouchers.functions.papi
+
+data class BooleanVariable(
+    private val stringValue: String
+) : Variable<Boolean>(
+    { player -> stringValue.toBooleanStrictOrNull() ?: stringValue.papi(player).toBooleanStrictOrNull() }
+)

plugin/src/main/kotlin/me/gabytm/minecraft/arcanevouchers/voucher/requirements/implementations/common/variable/DoubleVariable.kt

@@ -0,0 +1,9 @@
+package me.gabytm.minecraft.arcanevouchers.voucher.requirements.implementations.common.variable
+
+import me.gabytm.minecraft.arcanevouchers.functions.papi
+
+data class DoubleVariable(
+    private val string: String
+) : Variable<Double>(
+    { player -> string.toDoubleOrNull() ?: string.papi(player).toDoubleOrNull() }
+)

plugin/src/main/kotlin/me/gabytm/minecraft/arcanevouchers/voucher/requirements/implementations/common/variable/LocationVariable.kt

@@ -0,0 +1,25 @@
+package me.gabytm.minecraft.arcanevouchers.voucher.requirements.implementations.common.variable
+
+import me.gabytm.minecraft.arcanevouchers.Constant
+import me.gabytm.minecraft.arcanevouchers.functions.papi
+import org.bukkit.Bukkit
+import org.bukkit.Location
+
+data class LocationVariable(
+    private val string: String
+) : Variable<Location>(
+    transformer@{ player ->
+        // world;x;y;z
+        val parts = string.papi(player).split(Constant.Separator.SEMICOLON)
+
+        if (parts.size != 4) {
+            return@transformer null
+        }
+
+        val world = Bukkit.getWorld(parts[0]) ?: return@transformer null
+        val x = parts[1].toDoubleOrNull() ?: return@transformer null
+        val y = parts[2].toDoubleOrNull() ?: return@transformer null
+        val z = parts[3].toDoubleOrNull() ?: return@transformer null
+        return@transformer Location(world, x, y, z)
+    }
+)

plugin/src/main/kotlin/me/gabytm/minecraft/arcanevouchers/voucher/requirements/implementations/common/variable/Variable.kt

@@ -0,0 +1,15 @@
+package me.gabytm.minecraft.arcanevouchers.voucher.requirements.implementations.common.variable
+
+import org.bukkit.entity.Player
+
+abstract class Variable<T>(
+    private val transformer: (player: Player?) -> T?
+) {
+
+    @Suppress("unused")
+    private val variableType = this::class.java.simpleName
+    private val parsed: T? = transformer(null)
+
+    fun get(player: Player?): T? = parsed ?: transformer(player)
+
+}

plugin/src/main/kotlin/me/gabytm/minecraft/arcanevouchers/voucher/requirements/implementations/number/NumberRequirement.kt

@@ -3,7 +3,7 @@ package me.gabytm.minecraft.arcanevouchers.voucher.requirements.implementations.
 import me.gabytm.minecraft.arcanevouchers.actions.ArcaneAction
 import me.gabytm.minecraft.arcanevouchers.actions.ArcaneActionManager
 import me.gabytm.minecraft.arcanevouchers.voucher.requirements.ArcaneRequirement
-import me.gabytm.minecraft.arcanevouchers.voucher.requirements.implementations.common.DoubleVariable
+import me.gabytm.minecraft.arcanevouchers.voucher.requirements.implementations.common.variable.DoubleVariable
 import me.gabytm.minecraft.util.requirements.Arguments
 import org.bukkit.entity.Player
 import java.util.*