Let ::pos return other players positions (#422)

Rework ::pos to allow a user to return another player's position

game/plugin/cmd/src/teleport-cmd.plugin.kts

@@ -1,20 +1,36 @@
 
 import com.google.common.primitives.Ints
 import org.apollo.game.model.Position
+import org.apollo.game.model.entity.Player
 import org.apollo.game.model.entity.setting.PrivilegeLevel
 import org.apollo.game.plugin.api.Position.component1
 import org.apollo.game.plugin.api.Position.component2
 import org.apollo.game.plugin.api.Position.component3
 
 /**
- * Sends the player's position.
+ * Sends a player's position.
  */
 on_command("pos", PrivilegeLevel.MODERATOR)
     .then { player ->
-        val (x, y, z) = player.position
-        val region = player.position.regionCoordinates
+        val target: Player
+	val name: String
 
-        player.sendMessage("You are at: ($x, $y, $z) in region (${region.x}, ${region.y}).")
+        if (arguments.size >= 1) {
+          name = arguments.joinToString(" ")
+          if (player.world.isPlayerOnline(name)) {
+            target = player.world.getPlayer(name)
+          } else {
+            player.sendMessage("$name is offline.")
+            return@then
+          }
+        } else {
+          target = player
+        }
+
+        val (x, y, z) = target.position
+        val region = target.position.regionCoordinates
+
+        player.sendMessage("${target.username} is located at ($x, $y, $z) in region (${region.x}, ${region.y}).")
     }
 
 /**

game/plugin/cmd/test/TeleportCommandTests.kt

@@ -6,6 +6,7 @@ import org.apollo.game.model.entity.Player
 import org.apollo.game.model.entity.setting.PrivilegeLevel
 import org.apollo.game.plugin.testing.assertions.contains
 import org.apollo.game.plugin.testing.junit.ApolloTestingExtension
+import org.apollo.game.plugin.testing.junit.api.annotations.Name
 import org.apollo.game.plugin.testing.junit.api.annotations.TestMock
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Test
@@ -22,6 +23,10 @@ class TeleportCommandTests {
     @TestMock
     lateinit var player: Player
 
+    @TestMock
+    @Name("player_two")
+    lateinit var player_two: Player
+
     @Test
     fun `Teleport to given coordinates`() {
         player.privilegeLevel = PrivilegeLevel.ADMINISTRATOR
@@ -50,6 +55,27 @@ class TeleportCommandTests {
         }
     }
 
+    @Test
+    fun `Shows another players current position information`() {
+        player.privilegeLevel = PrivilegeLevel.ADMINISTRATOR
+        player_two.position = Position(1, 2, 3)
+        world.commandDispatcher.dispatch(player, Command("pos", arrayOf("player_two")))
+
+        verify {
+            player.sendMessage(contains("1, 2, 3"))
+        }
+    }
+
+    @Test
+    fun `Shows no position information for a nonexistent player`() {
+        player.privilegeLevel = PrivilegeLevel.ADMINISTRATOR
+        world.commandDispatcher.dispatch(player, Command("pos", arrayOf("player999")))
+
+        verify {
+            player.sendMessage(contains("offline"))
+        }
+    }
+
     @ParameterizedTest(name = "::tele {0}")
     @ValueSource(strings = [
         "1 2 <garbage>",