Added /boosters activate

eco-core/core-plugin/src/main/kotlin/com/willfp/boosters/commands/CommandActivate.kt

@@ -0,0 +1,53 @@
+package com.willfp.boosters.commands
+
+import com.willfp.boosters.activateBooster
+import com.willfp.boosters.boosters.Boosters
+import com.willfp.boosters.incrementBoosters
+import com.willfp.eco.core.EcoPlugin
+import com.willfp.eco.core.command.impl.Subcommand
+import org.bukkit.command.CommandSender
+import org.bukkit.entity.Player
+import org.bukkit.util.StringUtil
+
+class CommandActivate(plugin: EcoPlugin) :
+    Subcommand(
+        plugin,
+        "activate",
+        "boosters.command.activate",
+        true
+    ) {
+
+    override fun onExecute(sender: CommandSender, args: List<String>) {
+        val player = sender as? Player ?: return
+
+        if (args.isEmpty()) {
+            sender.sendMessage(plugin.langYml.getMessage("requires-booster"))
+            return
+        }
+
+        val booster = Boosters.getByID(args[0].lowercase())
+
+        if (booster == null) {
+            sender.sendMessage(plugin.langYml.getMessage("invalid-booster"))
+            return
+        }
+
+        player.incrementBoosters(booster, 1)
+        player.activateBooster(booster)
+    }
+
+    override fun tabComplete(sender: CommandSender, args: List<String>): List<String> {
+        val completions = mutableListOf<String>()
+
+        if (args.size == 1) {
+            StringUtil.copyPartialMatches(
+                args[0],
+                Boosters.values().map { it.id },
+                completions
+            )
+            return completions
+        }
+
+        return emptyList()
+    }
+}

eco-core/core-plugin/src/main/kotlin/com/willfp/boosters/commands/CommandBoosters.kt

@@ -18,6 +18,7 @@ class CommandBoosters(plugin: EcoPlugin) :
         this.addSubcommand(CommandGive(plugin))
             .addSubcommand(CommandReload(plugin))
             .addSubcommand(CommandCancel(plugin))
+            .addSubcommand(CommandActivate(plugin))
     }
 
     override fun onExecute(sender: CommandSender, args: List<String>) {