Add attribute delegates to the API plugin

game/plugin/api/src/org/apollo/game/plugins/api/attributes.kt

@@ -0,0 +1,45 @@
+import org.apollo.game.model.entity.Mob
+import org.apollo.game.model.entity.attr.*
+import kotlin.reflect.KClass
+import kotlin.reflect.KProperty
+
+object MobAttributeDelegators {
+    inline fun <reified T : Any> attribute(name: String, defaultValue: T): MobAttributeDelegate<T> {
+        return MobAttributeDelegate<T>(name, T::class, defaultValue, false)
+    }
+
+    inline fun <reified T : Any> persistentAttribute(name: String, defaultValue: T): MobAttributeDelegate<T> {
+        return MobAttributeDelegate<T>(name, T::class, defaultValue, true)
+    }
+
+}
+
+class MobAttributeDelegate<T : Any>(val name: String, val type: KClass<T>, val defaultValue: T, persistent: Boolean = true) {
+    init {
+        val attrType = when {
+            type == Int::class || type == Long::class -> AttributeType.LONG
+            type == Boolean::class -> AttributeType.BOOLEAN
+            type == Double::class -> AttributeType.DOUBLE
+            type == String::class -> AttributeType.STRING
+            else -> throw IllegalArgumentException("Can only store primitive attributes, not: ${type.qualifiedName}")
+        }
+
+        val definition = AttributeDefinition(defaultValue, if (persistent) AttributePersistence.PERSISTENT else AttributePersistence.TRANSIENT, attrType)
+        AttributeMap.define(name, definition)
+    }
+
+    operator fun getValue(thisRef: Mob, property: KProperty<*>): T {
+        return thisRef.attributes[name]?.value as T? ?: defaultValue
+    }
+
+    operator fun setValue(thisRef: Mob, property: KProperty<*>, value: T) {
+        val attr = when {
+            type == Double::class || type == Int::class || type == Long::class -> NumericalAttribute(value as Number)
+            type == Boolean::class -> BooleanAttribute(value as Boolean)
+            type == String::class -> StringAttribute(value as String, false)
+            else -> throw IllegalArgumentException("Can only store primitive attributes, not: ${type.qualifiedName}")
+        }
+
+        thisRef.setAttribute(name, attr)
+    }
+}

game/plugin/api/src/org/apollo/game/plugins/api/player.kt

@@ -0,0 +1,28 @@
+package org.apollo.game.plugins.api
+
+import org.apollo.game.model.entity.Mob
+import org.apollo.game.model.entity.Skill
+import org.apollo.game.model.entity.SkillSet
+
+val Mob.skills: SkillSet get() = skillSet
+val SkillSet.attack: Skill get() = getSkill(Skill.ATTACK)
+val SkillSet.defence: Skill get() = getSkill(Skill.DEFENCE)
+val SkillSet.strength: Skill get() = getSkill(Skill.STRENGTH)
+val SkillSet.hitpoints: Skill get() = getSkill(Skill.HITPOINTS)
+val SkillSet.ranged: Skill get() = getSkill(Skill.RANGED)
+val SkillSet.prayer: Skill get() = getSkill(Skill.PRAYER)
+val SkillSet.magic: Skill get() = getSkill(Skill.MAGIC)
+val SkillSet.cooking: Skill get() = getSkill(Skill.COOKING)
+val SkillSet.woodcutting: Skill get() = getSkill(Skill.WOODCUTTING)
+val SkillSet.fletching: Skill get() = getSkill(Skill.FLETCHING)
+val SkillSet.fishing: Skill get() = getSkill(Skill.FISHING)
+val SkillSet.firemaking: Skill get() = getSkill(Skill.FIREMAKING)
+val SkillSet.crafting: Skill get() = getSkill(Skill.CRAFTING)
+val SkillSet.smithing: Skill get() = getSkill(Skill.SMITHING)
+val SkillSet.mining: Skill get() = getSkill(Skill.MINING)
+val SkillSet.herblore: Skill get() = getSkill(Skill.HERBLORE)
+val SkillSet.agility: Skill get() = getSkill(Skill.AGILITY)
+val SkillSet.thieving: Skill get() = getSkill(Skill.THIEVING)
+val SkillSet.slayer: Skill get() = getSkill(Skill.SLAYER)
+val SkillSet.farming: Skill get() = getSkill(Skill.FARMING)
+val SkillSet.runecraft: Skill get() = getSkill(Skill.RUNECRAFT)

game/plugin/api/src/util.kt

@@ -1,9 +1,21 @@
-package org.apollo.game.plugin.api
-
-import java.util.Random
+import java.lang.ref.WeakReference
+import java.util.*
+import kotlin.reflect.KProperty
 
 val RAND = Random()
 
 fun rand(bounds: Int): Int {
     return RAND.nextInt(bounds)
-}
+}
+
+class WeakRefHolder<T>(private var _value: WeakReference<T?> = WeakReference(null)) {
+    operator fun getValue(thisRef: Any?, property: KProperty<*>): T? {
+        return _value.get()
+    }
+
+    operator fun setValue(
+        thisRef: Any?, property: KProperty<*>, value: T?
+    ) {
+        _value = WeakReference(value)
+    }
+}